CA2618490A1 - Medical sensor and technique for using the same - Google Patents

Medical sensor and technique for using the same Download PDF

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Publication number
CA2618490A1
CA2618490A1 CA002618490A CA2618490A CA2618490A1 CA 2618490 A1 CA2618490 A1 CA 2618490A1 CA 002618490 A CA002618490 A CA 002618490A CA 2618490 A CA2618490 A CA 2618490A CA 2618490 A1 CA2618490 A1 CA 2618490A1
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CA
Canada
Prior art keywords
frame
sensor
sensor assembly
coating
skeletal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002618490A
Other languages
French (fr)
Inventor
Joseph Coakley
George L. Matlock
William Raridan, Jr.
Darius Eghbal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nellcor Puritan Bennett LLC
Original Assignee
Nellcor Puritan Bennett Llc
Joseph Coakley
George L. Matlock
William Raridan, Jr.
Darius Eghbal
Nellcor Puritan Bennett Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nellcor Puritan Bennett Llc, Joseph Coakley, George L. Matlock, William Raridan, Jr., Darius Eghbal, Nellcor Puritan Bennett Incorporated filed Critical Nellcor Puritan Bennett Llc
Publication of CA2618490A1 publication Critical patent/CA2618490A1/en
Abandoned legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813Specially adapted to be attached to a specific body part
    • A61B5/6825Hand
    • A61B5/6826Finger
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A61B5/14552Details of sensors specially adapted therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683Means for maintaining contact with the body
    • A61B5/6838Clamps or clips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/12Manufacturing methods specially adapted for producing sensors for in-vivo measurements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/24Hygienic packaging for medical sensors; Maintaining apparatus for sensor hygiene
    • A61B2562/247Hygienic covers, i.e. for covering the sensor or apparatus during use
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement

Abstract

A unitary sensor is provided that includes a frame upon which electrical and optical components may be disposed and a coating, such as an overmolded coating provided about the frame.' The unitary sensor includes a spring, such as a flat spring or torsion spring, provided on the frame that provides a closing force for the sensor. The sensor may be placed on a patient's finger, toe, ear, and so forth to obtain pulse oximetry or other physiological measurements.

Description

MEDICAL SENSOR AND TECHNIQUE FOR USING THE SAME
BACKGROUND OF THE INVENTION

Field Of The Invention The present invention relates generally to medical devices and, ,more particularly, to sensors used for sensing physiological parameters of a patient.

Description Of The Related Art This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the present invention, which are described and/or claimed below.
This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present invention.
Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art.
In the field of medicine, doctors often desire to monitor certain physiological characteristics of their patients. Accordingly, a wide variety of devices have been developed for monitoring physiological characteristics. Such devices provide doctors and other healthcare personnel with the information they need to provide the best possible healthcare for their patients. As a result, such monitoring devices have become an indispensable part of modem medicine.
One technique for monitoring certain physiological characteristics of a patient is commonly referred to as pulse oximetry, and the devices built based upon pulse oximetry techniques are commonly referred to as pulse oximeters. Pulse oximetry may be used to measure various blood flow characteristics, such as the blood-oxygen saturation of hemoglobin in arterial blood, the volume of individual blood pulsations supplying the tissue, and/or the rate of blood pulsations corresponding to each heartbeat of a patient.
Pulse oximeters typically utilize a non-invasive sensor that is placed on or against a patient's tissue that is well perfused with blood, such as a patient's finger, toe, forehead or earlobe. The pulse oximeter sensor emits light and photoelectrically senses the absorption and/or scattering of the light after passage through the perfused tissue. The data collected by the sensor may then be used to calculate one or more of the above physiological characteristics based upon the absorption or scattering of the light. More specifically, the emitted light is typically selected to be of one or more wavelengths that are absorbed or scattered in an amount related to the presence of oxygenated versus de-oxygenated hemoglobin in the blood. The amount of ligllt absorbed and/or scattered may then be used to estimate the amount of the oxygen in the tissue using various algorithms.
In many instances, it may be desirable to employ, for cost and/or convenience, a pulse oximeter sensor that is reusable. Such reusable sensors, however, may be uncomfortable for the patient for various reasons. For example, the materials used in their construction may not be adequately compliant or supple or the structural features may include angles or edges.
Furthermore, the reusable sensor should fit snugly enough that incidental patient motion will not dislodge or move the sensor, yet not so tight that it may interfere with pulse oximetry measurements. Such a conforming fit may be difficult to achieve over a range of patient physiologies without adjustment or excessive attention on the part of medical personnel. In addition, lack of a tight or secure fit may allow light from the environment to reach the photodetecting elements of the sensor. Such environmental light is not related to a physiological characteristic of the patient and may, therefore, introduce error into the measurements derived using data obtained with the sensor.
Reusable pulse oximeter sensors are also used repeatedly and, typically, on more than one patient. Therefore, over the life of the sensor, detritus and other bio-debris (sloughed off skin cells, dried fluids, dirt, and so forth) may accuinulate on the surface of the sensor or in crevices and cavities of the sensor, after repeated uses. As a result, it may be desirable to quickly and/or routinely clean the sensor in a thorough manner. However, in sensors having a multi-part construction, as is typical in reusable pulse oximeter sensors, it may be difficult to perform such a quick and/or routine cleaning. For example, such a thorough cleaning may require disassembly of the sensor and individual cleaning of the disassembled parts or may require careful cleaning using utensils capable of reaching into cavities or crevices of the sensor.
Such cleaning is labor intensive and may be impractical in a typical hospital or clinic environment.
SUMMARY
Certain aspects cominensurate in scope with the originally claimed invention are set forth below. It should be understood that these aspects are presented merely to provide the reader witli a brief summary of certain forms the invention might take and that these aspects are not intended to limit the scope of the invention. Indeed, the invention may encompass a variety of aspects that may not be set forth below.
There is provided a sensor assembly that includes: a frame comprising two or more structural supports; a coating provided over the frame, wherein the coating comprises at least one defonnable region disposed between the two or more structural supports; at least one optical component disposed within the at least one deformable region, such that the at least one optical component can move relative to the two or more structural supports;
and a biasing component attached to an end of the frame such that at least two different portions of the coated fraine are biased closed in the absence of a sufficient opening force.
There is also provided a sensor assembly that includes: a frame; an emitter disposed on the frame; a detector disposed on the frame; a biasing component attached to an end of the frame; and a coating provided over at least the frame, to form a sensor assembly.
There is also provided a sensor assembly that includes: a frame; an emitter disposed on the frame; a detector disposed on the frame; and a coating provided over at least the frame to form a sensor assembly, wherein the coating provides a closing force that acts to close one end of the sensor assembly in the absence of an opposing force.
There is also provided a method of manufacturing a sensor that includes:
situating an emitter and a detector on a skeletal frame; and coating the skeletal frame with a coating material to form a unitary sensor assembly.
There is also provided a method for acquiring physiological data that includes: einitting two or more wavelengths of light from an emitter of a unitary sensor assembly clipped to a patient, wherein the unitary sensor assembly comprises an overmolded skeletal frame; detecting transmitted or reflected light using a photodetector of the unitary sensor assembly; and determining a physiological parameter based on the detected light.

There is also provided a sensor assembly that includes: a skeletal frame comprising at least a first portion and a second portion configured to move relative to one another; at least one physiological sensor attached to the frame; and a coating provided over the frame and the at least one physiological sensor to form a sensor assembly.
There is also provided a method of manufacturing a sensor body that includes:
coating a slceletal fraine with a coating material to form a sensor body.
There is also provided a sensor body that includes: a frame; a biasing component attached to the frame; and a coating provided over the frame and the biasing component to form a sensor body.
There is also provided a sensor body that includes: a frame; and a coating provided over the fraine to form a sensor assembly, wherein the coating provides a closing force that acts to close one end of the sensor assembly in the absence of an opposing force.
There is also provided a skeletal frame of a sensor that includes: two or more structural support members having one or more spaces between the two or more structural support members, wherein the two or more structural support members are configured to provide support to an overlying coating when present.
There is also provided a method for manufacturing a skeletal framework of a sensor that includes: forming two or more structural support members of a skeletal frame of a sensor having one or more spaces between the two or more structural support members, wherein the two or more structural support members are configured to provide support to an overlying coating when present.

BRIEF DESCRIPTION OF THE DRAWINGS
Advantages of the invention may become apparent upon reading the following detailed description and upon reference to the drawings in which:
Fig. 1 illustrates a patient monitoring system coupled to a multi-paraineter patient monitor and a sensor, in accordance with aspects of the present technique;
Fig. 2 illustrates a perspective view of an internal frame for use in a patient sensor, in accordance with aspects of the present technique;
Fig. 3 illustrates a perspective view of the internal frame of Fig. 2 in a closed configuration, in accordance with aspects of the present technique;

Fig. 4A illustrates a side view of the internal frame of Fig. 3;
ATinnl.AnnOOn 1 Fig. 4B illustrates a flat spring for use with the internal frame of Figs. 2-4A, in accordance with aspects of the present technique;
Fig. 5A illustrates a side view of another internal frame for use in a patient sensor, in accordance with aspects of the present technique;
Fig. 5B illustrates a torsion spring for use with the internal frame of Fig.
5A, in accordance with aspects of the present technique;
Fig. 6 illustrates a perspective view of an overmolded patient sensor, in accordance with aspects of the present technique;
Fig. 7 illustrates the overmolded patient sensor of Fig. 6 in use on a patient's finger, in accordance with aspects of the present technique;
Fig. 8 illustrates a cross-section taken along section line 8-8 of the overmolded patient sensor depicted in Fig. 6; and Fig. 9 illustrates a cross-section taken along section line 9-9 of the overmolded patient sensor depicted in Fig. 6.

DETAILED DESCRIPTION OF SPECIFIC EMBODIMENTS
One or more specific embodiments of the present invention will be described below.
In an effort to provide a concise description of these embodiments, not all features of an actual implementation are described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It is desirable to provide a comfortable and conformable reusable patient sensor, such as for use in pulse oximetry or other applications utilizing spectrophotometry, that is easily cleaned and that is resistant to environmental light infiltration. In accordance with some aspects of the present technique, a reusable patient sensor is provided that is overmolded to provide patient comfort and a suitably conformable fit. The overmold material provides a Aiinnin-on i seal against bodily fluids, as well as water or other cleaning fluids, that allows easy cleaning without disassembly or special tools. In accordance with some aspects of the present technique, the reusable patient sensor includes a mechanisin providing a biasing force, such as a metal flat spring or a torsion spring, to facilitate the secure placement of the sensor on a patient.
Prior to discussing such exemplary sensors in detail, it should be appreciated that such sensors are typically designed for use with a patient monitoring system. For example, referring now to Fig. 1, a sensor 10 according to the present invention may be used in conjunction with a patient monitor 12. In the depicted embodiment, a cable 14 connects the sensor 10 to the patient monitor 12. As will be appreciated by those of ordinary skill in the art, the sensor 10 and/or the cable 14 may include or incorporate one or more integrated circuit devices or electrical devices, such as a memory, processor chip, or resistor, that may facilitate or enhance communication between the sensor 10 and the patient monitor 12.
Likewise the cable 14 may be an adaptor cable, with or without an integrated circuit or electrical device, for facilitating communication between the sensor 10 and various types of monitors, including older or newer versions of the patient monitor 12 or other physiological monitors. In other embodiments, the sensor 10 and the patient monitor 12 may communicate via wireless means, such as using radio, infrared, or optical signals. Tn!such embodiments, a transmission device (not shown) may be connected to the sensor 10 to facilitate wireless transmission between the sensor 10 and the patient monitor 12. As will be appreciated by those of ordinary skill in the art, the cable 14 (or corresponding wireless transmissions) are typically used to transinit control or timing signals from the monitor 12 to the sensor 10 and/or to transmit acquired data from the sensor 10 to the monitor 12. In some embodiments, however, the cable 14 may be an optical fiber that allows optical signals to be conducted between the monitor 12 and the sensor 10.
In one embodiment, the patient monitor 12 may be a suitable pulse oximeter, such as those available from Nellcor Puritan Bennett Inc. In other embodiments, the patient monitor 12 may be a monitor suitable for measuring tissue water fractions, or other body fluid related metrics, using spectrophotometric or other techniques. Furthermore, the monitor 12 may be a multi-purpose monitor suitable for performing pulse oximetry and measurement of tissue water fraction, or other combinations of physiological and/or biochemical monitoring processes, using data acquired via the sensor 10. Furthermore, to upgrade conventional monitoring functions provided by the monitor 12 to provide additional functions, the patient monitor 12 may be coupled to a multi-parameter patient monitor 16 via a cable 18 connected to a sensor input port and/or via a cable 20 connected to a digital communication port.
The sensor 10, in the example depicted in Fig. 1, is a clip-style sensor that is overmolded to provide a unitary or enclosed assembly. The sensor 10 includes an emitter 22 and a detector 24 which may be of any suitable type. For example, the emitter 22 may be one or more light emitting diodes adapted to transmit one or more wavelengths of light, such as in the red to infrared range, and the detector 24 may be a photodetector, such as a silicon photodiode package, selected to receive light in the range emitted from the einitter 22. In the depicted embodiment, the sensor 10 is coupled to a cable 14 that is responsible for transmitting electrical and/or optical signals to and from the emitter 22 and detector 24 of the sensor 10. The cable 14 may be permanently coupled to the sensor 10, or it may be removably coupled to the sensor 10 -- the latter alternative being more useful and cost efficient in situations where the sensor 10 is disposable.
The sensor 10 described above is generally configured for use as a "transmission type"
sensor for use in spectrophotometric applications, though in some embodiments it may instead be configured for use as a "reflectance type sensor." Transmission type sensors include an emitter and detector that are typically placed on opposing sides of the sensor site.
If the sensor site is a fingertip, for example, the sensor 10 is positioned over the patient's fingertip such that the emitter and detector lie on either side of the patient's nail bed. For example, the sensor 10 is positioned so that the emitter is located on the patient's fingernail and the detector is located opposite the einitter on the patient's finger pad.
During operation, the emitter shines one or more wavelengths of light through the patient's fingertip, or other tissue, and the light received by the detector is processed to determine various physiological characteristics of the patient.
Reflectance type sensors generally operate under the same general principles as transmittance type sensors. However, reflectance type sensors include an emitter and detector that are typically placed on the same side of the sensor site. For example, a reflectance type sensor may be placed on a patient's fingertip such that the emitter and detector are positioned side-by-side. Reflectance type sensors detect light photons that are scattered back to the detector.

For pulse oximetry applications using either transinission or reflectance type sensors the oxygen saturation of the patient's arterial blood may be deterinined using two or more wavelengths of light, most commonly red and near infrared wavelengths.
Similarly, in other applications a tissue water fraction (or other body fluid related inetric) or a concentration of one or more biochemical components in an aqueous environment may be measured using two or more wavelengths of light, most commonly near infrared wavelengths between about 1,000 nm to about 2,500 iun. It should be understood that, as used herein, the term "light" may refer to one or more of infrared, visible, ultraviolet, or even X-ray electromagnetic radiation, and may also include any wavelength within the infrared, visible, ultraviolet, or X-ray spectra.
Pulse oxiinetry and other spectrophotometric sensors, whether transmission-type or reflectance-type, are typically placed on a patient in a location conducive to measurement of the desired physiological parameters. , For example, pulse oxiinetry sensors are typically placed on a patient in a location that is normally perfused with arterial blood to facilitate measurement of the desired blood characteristics, such as arterial oxygen saturation measurement (Sa02). Common pulse oximetry sensor sites include a patient's fingertips, toes, forehead, or earlobes. Regardless of the placement of the sensor 10, the reliability of the pulse oximetry measurement is related to the 'accurate detection of transniitted light that has passed through the perfused tissue and has not been inappropriately supplemented by outside light sources or modulated by subdermal anatomic structures. Such inappropriate supplementation and/or modulation of the light transmitted by the sensor can cause variability in the resulting pulse oximetry measurements.

As noted above, the overmolded sensor 10 discussed herein may be configured for either transmission or reflectance type sensing. For simplicity, the exemplary embodiment of the sensor 10 described herein is adapted for use as a transmission-type sensor. As will be appreciated by those of ordinary skill in the art, however, such discussion is merely exemplary and is not intended to limit the scope of the present technique.

Referring now to Fig. 2, an internal frame 26 for a sensor 10 is depicted. Iii the depicted example, the internal frame 26 is a skeletal frame for the sensor 10.
Such a skeletal frame may include different structures or regions that may or may not have similar rigidities.
AUS01:429380.1 For exainple, the depicted skeletal frame includes structural supports 28 that define the general shape of the sensor 10 when coated, as discussed below with regard to Figs. 6-9. In view of their structure providing function, the structural supports 28 may be constructed to be substantially rigid or semi-rigid. In addition, the skeletal frame may include a cable guide 32 through which a cable, such as an electrical or optical cable, may pass to connect to the electrical or optical conductors attached to the emitter 22 and/or detector 24 upon asseinbly.
Likewise, a skeletal frame, such as the depicted internal frame 26, may include component housings, such as the emitter housing 38 and detector housing 40 and struts 42 attaching such housings to the remainder of the skeletal frame. The struts 42 may be relatively flexible, allowing the emitter housing 38 and/or the detector housing 40 to move vertically (such as along an optical axis between the respective housings) relative to the structural supports 28 of the skeletal frame. Alternatively, in embodiments where the struts 42 are relatively rigid, where multiple struts 42 are employed to attach the housings 38 and 40 to the structural supports 28, or where the internal frame is substantially solid instead of skeletal, the housings 38 and/or 40 may be fixed relative to the respective structural supports 28 and, therefore, move with the structural supports 28.
In embodiments where the internal frame 26 is skeletal, the various structural supports 28, housings 38 and 40, struts 42, and other structures may define various openings and spaces between and/or around the structures of the skeletal frame. In this maimer, the skeletal frame provides structural support at specific locations for a coating or overmolding.
However, in regions where structural support is not provided, flexibility and freedom of motion in an overlying coating or overmolding may be possible. For example, in one implementation, the emitter housing 38 and/or the detector housing 40 may be attached to the remainder of the skeletal frame by flexible struts 42, as depicted in Figs. 2-4. In such implementations, a coating provided proximate to the emitter housing 38 and/or detector housing 40 may be sufficiently flexible (such as due to the elasticity and/or the thinness of the coating material in the open areas of the skeletal frame) such that the housings 38 and 40 may move independent of the structural supports 28 of the frame 26 along an optical axis between the housings 3 8 and 40.

In certain embodiments, the internal frame 26 is constructed, in whole or in part, from polymeric materials, such as thermoplastics, capable of providing a suitable rigidity or semi-rigidity for the different portions of the internal frame 26. Examples of such suitable materials include polypropylene and nylon, though other polymeric materials may also be suitable. For example, in one embodiment, the internal frame 26 is constructed from polyurethane having a durometer of 65 Shore D. In other embodiments, the internal fraine 26 is constructed, in whole or in part, from other suitably rigid or semi-rigid materials, such as stainless steel, aluininum, magnesium, graphite, fiberglass, or other metals, alloys, or compositions that are sufficiently ductile and/or strong. For example, metals, alloys, or compositions that are suitable for diecasting, sintering, lost wax casting, stamping and forming, and other metal or composition fabrication processes may be used to construct the internal frame 26.
In addition, the internal frame 26 may be constructed as an integral structure or as a composite structure. For example, in one embodiment, the internal frame 26 may be constructed as a single piece from a single material or from different materials. Alternatively, the internal frame 26 may be constructed or assembled from two or more parts that are separately formed. In such embodiments, the different parts may be formed from the same or different materials. For example, in implementations where different parts are formed from different materials, each part may be constructed from a material having suitable mechanical and/or chemical properties for that part. The different parts may then be joined or fitted together to form the internal frame 26.
In addition, the internal frame 26 may be molded, formed, or constructed in a different configuration than the final sensor configuration. For example, referring now to Fig. 2, the internal frame 26 for use in the sensor 10 may be initially formed in a generally open, or flat, configuration compared to the relatively closed configuration of the internal frame 26 when folded to form the sensor 10. In such embodiments, a top portion 46 and a bottom portion 48 of the frame 26 may be formed in a generally open or planar configuration in which the two portions 46 and 48 are connected by a connective portion 50.
For example, the top portion 46, bottom portion 48, and connective portion 50 may be molded or formed as a single piece in an open configuration. In such an embodiment, the connective portion 50 may be broken or deformed to bring the top portion 46 and bottom portion 48 into a closed configuration, as depicted in Figs. 3, 4A, and 5A. In this implementation, the top portion 46 and bottom portion 48 may be secured together, such as via a snap fitting process, ultrasonic welding, or heat staking or by application of an adhesive or mechanical fastener.
Alternatively, the internal frame 26 may be formed as multiple parts that are joined together to form the intenzal frame 26. For example, the top portion 46, bottom portion 48, tabs 52 and/or the connective portion 50 may be molded or formed separately and subsequently secured together to fonn the internal frame 26. The different parts of the internal frame 26 may be joined together using one or more of the techniques noted above, such as a snap fitting process, ultrasonic welding, or heat staking or by application of an adhesive or mechanical fastener. If the internal frame 26 is secured together in an open configuration, the connective portion 50 may be broken or deformed to bring the top portion 46 and bottom portion 48 into a closed configuration, as depicted in Figs. 3 4A, and 5A.
Alternatively, the internal frame 26 may be constructed in a closed configuration from the separately molded or formed parts, such as the top portion 46, bottom portion 48, and/or tabs 52.
In certain embodiments, the internal frame 26 is fitted with a spring or other biasing component, such as a formed flat spring 58 (as depicted in Figs. 3, 4A, and 4B) or a torsion spring 60 (as depicted in Figs. 5A and 5B). As will be appreciated by those of ordinary skill in the art, such biasing components may include elastic bodies or devices that may be distorted and that recover their original shape when released after being distorted. Similarly, a component or material that can store energy and release the energy to provide a gripping force, as described herein, may function as a spring or biasing component. For example, an overmolding material or composition, as discussed with regard to Figs. 6-9, may have sufficient elasticity to function as a biasing component as discussed herein, with or without the additional gripping force provided by a component such as the flat spring 58 or the torsion spring 60. For the purpose of this example, however, the sensor 10 is provided with and discussed as including a flat spring 58 (in Figs. 3 and 4A) or a torsion spring 60 (in Fig. 5A).
Referring to Figs. 3 and 4A, a flat spring 58 is fitted at or near the end of the internal frame 26 that is opposite from where the finger, toe, or other patient appendage is inserted into the assembled sensor. In alternative embodiments, the flat spring 58 connects two different portions or halves of the internal frame 26 to form the internal frame 26. In the depicted embodiment, slots 64 are provided in the internal fr ame 26 that are engaged by complementary spring tabs 66 to fit the flat spring 58 to the internal frame 26. For example, in an embodiment in which the internal frame 26 is molded or formed as a relatively open, single-piece, as depicted in Fig. 2, the internal frame 26 may be bent from the relatively open configuration to a closed configuration, as depicted in Figs. 3 and 4A. The flat spring 58 may be fitted or attached to the internal frame 26 when in the closed configuration to provide a biasing force that maintains the internal frame 26 in the closed configuration. Referring now to Fig. 5A, the torsion spring 60 may be similarly fitted or attached to the internal frame 26 when in the closed configuration to provide a biasing force that maintains the internal frame 26 in the closed configuration.
The flat spring 58 or torsion spring 60 may be constructed from a variety of materials or combinations of materials that provide the desired resiliency and clamping force. For example, in certain einbodiments, the flat spring 58 or torsion spring 60 may be constructed from a metal alloy, such as stainless steel. In one such stainless steel flat spring embodiment, the flat spring 58 may be made from 301 high yield stainless steel that is .010 inch thick and that produces approximately 1.25 pounds of force at the optic plane (that is a plane through the emitter 22 and detector 24) with a finger pad separation of approximately 15 mm. In other embodiments, the flat spring 58 or torsion spring 60 may be constructed from materials such as plastics, polymers, composites, and so forth that provide the desired resilience and elasticity.
An overmolded sensor 10 (as discussed with regard to Figs. 6-9) incorporating a flat spring 58, a torsion spring 60, or other biasing component, disposed on the internal fraine 26 may be opened for placement on a patient's finger, toe, ear, or other appendage by applying a force to separate the top portion 46 and bottom portion 48 of the internal frame 26. For example, the flat spring 58 (in Figs. 3 and 4A) or the torsion spring 60 (in Fig. 5A) provide or contribute to a closing force biasing the top portion 46 and the bottom portion 48 of the frame 26 together. An opposing force, however, may be applied to force the top portion 46 and bottom portion 48 apart. In the example depicted, an opposing force may be applied to projections, such as tabs 52, provided at the end of the internal frame 26 to which the flat spring 58 or torsion spring 60 is fitted such that the force provided by the respective spring is overcome. In this manner, the tabs 52 are moved toward one another while the top portion 46 and bottom portion 48 are moved apart from one another.

As noted above, in certain embodiments of the present technique, the frame 26 (such as a skeletal internal frame) is coated to form a unitary or integral sensor assembly, as depicted in Figs. 6-9. Such overmolded einbodiments may result in a sensor assembly in which the internal fraine 26 is completely or substantially coated. In einbodiinents in which the internal frame 26 is formed or molded as a relatively open or flat structure, the overmolding or coating process may be performed prior to or subsequent to bending the internal frame 26 into the closed configuration.
For example, the sensor 10 may be formed by an injection molding process. In one example of such a process the internal frame 26 may be positioned within a die or mold of the desired shape for the sensor 10. A molten or otherwise unset overmold material may then be injected into the die or mold. For example, in one iinplementation, a molten thermoplastic elastomer at between about 400 F to about 450 F is injected into the mold.
The overmold material may then be set, such as by cooling for one or more minutes or by chemical treatment, to form the sensor body about the internal fraine 26. In certain embodiments, other sensor components, such as the emitter 22 and/or detector 24, may be attached or inserted into their respective housings or positions on the overmolded sensor body.
Alternatively, the optical components (such as emitter 22 and detector 24) and/ or conductive structures (such as wires or flex circuits) may be placed on the internal frame 26 prior to overmolding. The internal frame 26 and associated components may then be positioned within a die or mold and overmolded, as previously described. To protect the emitter 22, detector 24, and or other electrical components, conventional techniques for protecting such coinponents from excessive temperatures may be employed. For example, the emitter 22 and/or the detector 24 may include an associated clear window, such as a plastic or crystal window, in contact with the mold to prevent coating from being applied over the window. In one embodiment, the material in contact with such windows may be composed of a material, such as beryllium copper, which prevents the heat of the injection molding process from being conveyed througli the window to the optical components. For example, in one embodiment, a beryllium copper material initially at about 40 F is contacted with the windows associated with the emitter 22 and/or detector 24 to prevent coating of the windows and heat transfer to the respective optical components. As will be appreciated by those of ordinary skill in the art, the injection molding process described herein is merely one technique by wliicli the frame 26 may be coated to form a sensor body, with or without associated sensing components. Other techniques which may be employed include, but are not limited to, dipping the frame 26 into a molten or otherwise unset coating material to coat the fraine 26 or spraying the frame 26 with a molteil or otherwise unset coating material to coat the frame 26. In such implementations, the coating material may be subsequently set, such as by cooling or chemical means, to form the coating. Such alternative techniques, to the extent that they may involve high temperatures, may include thermally protecting whatever optical components are present, such as by using beryllium copper or other suitable materials to prevent heat transfer through the windows associated with the optical components, as discussed above.

By such techniques, the frame 26, as well as the optical components and associated circuitry where desired, may be encased in a coating material 68 to form an integral or unitary assembly with no exposed or external moving parts of the internal frame 26.
For example, as depicted in Fig. 6, the sensor 10 includes features of the underlying internal frame 26 that are now completely or partially overmolded, such as the overmolded external cable guide 70, tabs 72, emitter housing 74, and detector housing 76. In addition, the overmolded sensor 10 includes an overmolded upper portion 78 and lower portion 80 that may be fitted to the finger 82 of a patient (as depicted in Fig. 7), or to the toe, ear, or other appendage of the patient, as appropriate.

In one implementation, the overmolding or coating 68 is a thermoplastic elastomer or other conformable coating or material. In such embodiments, the thermoplastic elastomer may include compositions such as thermoplastic polyolefins, thermoplastic vulcanizate alloys, silicone, thermoplastic polyurethane, and so forth. In one embodiment, the overmolding material is polyurethane having a durometer of 15 Shore A. As will be appreciated by those of ordinary skill in the art, the overmolding composition may vary, depending on the varying degrees of conformability, durability, wettability, or other physical and/or chemical traits that are desired. Furthennore, the coating material 68 may be selected to provide additional spring force to that provided by the biasing component (such as flat spring 58 or torsion spring 60).

Furthermore, the coating material 68 may be selected based upon the desirability of a chemical bond between the internal frame 26 and the coating material 68. Such a chemical Ar tclYl =a)Q2Rn I

bond may be desirable for durability of the resulting overmolded sensor 10.
For exainple, to prevent separation of the coating 68 froin the internal frame 26, the material used to form the coating 68 may be selected such that the coating 68 bonds with some or all of the intenlal fraine 26 during the ovennolding process. In such embodiments, the coating 68 and the portions of the internal fraine 26 to which the coating 68 is bonded are not separable, i.e., they form one continuous and generally inseparable structure.
Furthermore, in embodiments in which the coating 68 employed is liquid or fluid tight, such a sensor 10 may be easily maintained, cleaned, and/or disinfected by immersing the sensor into a disinfectant or cleaning solution or by rinsing the sensor 10 off, such as under running water. In particular, such an overmolded sensor assembly may be generally or substantially free of crevices, gaps, junctions or other surface irregularities typically associated with a multi-part construction which may normally allow the accuinulation of biological detritus or residue. Such an absence of crevices and other irregularities may further facilitate the cleaning and care of the sensor 10.
Turning now to Figs. 8 and 9, cross-sections of the coated sensor assembly 10 are depicted taken through transverse optical planes, represented by section line 8 and 9 of Fig. 6 respectively. Figs. 8 and 9 depict, among other aspects of the sensor 10, the overmolding material 68 as well as underlying portions of the internal frame 26, such as the emitter housing 38 and detector housing 40, along with the respective emitter 22, detector 24, and signal transmission structures (such as wiring 83 or other structures for conducting electrical or optical signals). In the depicted embodiment, the emitter 22 and detector 24 are provided substantially flush with the patient facing surfaces of the sensor 10, as may be suitable for pulse oximetry applications. For other physiological monitoring applications, such as applications measuring tissue water fraction or other body fluid related metrics, other configurations may be desirable. For example, in such fluid measurement applications it may be desirable to provide one or both of the emitter 22 and detector 24 recessed relative to the patient facing surfaces of the sensor 10. Such modifications may be accomplished by proper configuration or design of a mold or die used in overmolding the internal frame 26 and/or by proper design of the emitter housing 38 or detector housing 40 of the internal frame 26.

In addition, as depicted in Figs. 8 and 9, in certain embodiments portions 84 of the coating material 68 may be flexible, such as thin or membranous regions of coating material 68 disposed between structural supports 28 of a skeletal fraine. Such flexible regions 84 allow a greater range of digit sizes to be accommodated for a given retention or clamping force of the sensor 10. For exainple, the flexible regions 84 may allow the emitter 22 and/or detector 24, to flex or expand apart from one another along the optical axis in einbodiments in which the respective housings 38 and 40 are flexibly attached to the remainder of the frame 26. In this manner, the sensor 10 may accoinmodate differently sized digits.
For instance, for a relatively small digit, the flexible region 84 may not be substantially deformed or vertically displaced, and therefore the emitter 22 and/or detector 24 are not substantially displaced either. For larger digits, however, the flexible regions 84 may be deformed or displaced to a greater extent to accommodate the digit, thereby displacing the emitter 22 and/or detector 24 as well. In addition, for medium to large digits, the flexible regions 84 may also increase retention of the sensor 10 on the digit by increasing the surface area to which the retaining force is applied.
Furthermore, as the flexible regions 84 deform, the force applied to the digit is spread out over a large area on the digit due to the deformation of the flexible region 84. In this way, a lower pressure on digits of all sizes may be provided for a given vertical force. Therefore, a suitable conforming fit may be obtained in which the emitter 22 and detector 24 are maintained in contact with the digit without the application of concentrated and/or undesirable amounts of force, thereby improving blood flow through the digit.
hl the example depicted in Figs 6-9, flaps or side extensions 88 of the coating material 68 on the sides of the sensor 10 are depicted which facilitate the exclusion of environmental or ambient light from the interior of the sensor 10. Such extensions help prevent or reduce the detection of light from the outside environment, which may be inappropriately detected by the sensor 10 as correlating to the Sa02. Thus, a pulse oximetry sensor may detect differences in signal modulations unrelated to the underlying Sa02 level. In turn, this may impact the detected red-to-infrared modulation ratio and, consequently, the measured blood oxygen saturation (SpO2) value. The conformability of the fit of sensor 10 and the use of side extensions 88, therefore, may help prevent or reduce such errors.
While the exemplary medical sensors 10 discussed herein are some examples of overmolded or coated medical devices, other such devices are also contemplated and fall within the scope of the present disclosure. For example, other medical sensors and/or contacts applied externally to a patient may be advantageously applied using an overmolded sensor body as discussed herein. Examples of sucli sensors or contacts may include glucose inonitors or- other sensors or contacts that are generally held adjacent to the skin of a patient such that a conformable and comfortable fit is desired. Similarly, and as noted above, devices for measuring tissue water fraction or other body fluid related metrics may utilize a sensor as described herein. Likewise, other spectrophotometric applications where a probe is attached to a patient may utilize a sensor as described herein.
While the invention may be susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and have been described in detail herein. However, it should be understood that the invention is not intended to be limited to the particular forms disclosed. Rather, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following appended claims. Indeed, the present techniques may not only be applied to transmission type sensors for use in pulse oximetry, but also to retroflective and other sensor designs as well. Likewise, the present techniques are not limited to use on fingers and toes but may also be applied to placement on other body parts such as in embodiments configured for use on the ears or nose.

Claims (20)

1. ~A sensor assembly, comprising:
a frame comprising two or more structural supports;
a coating provided over the frame, wherein the coating comprises at least one deformable region disposed between the two or more structural supports;
at least one optical component disposed within the at least one deformable region, such that the at least one optical component can move relative to the two or more structural supports;
and a biasing component attached to an end of the frame such that at least two different portions of the coated frame are biased closed in the absence of a sufficient opening force.
2. ~The sensor assembly of claim 1, wherein the at least one optical component comprises at least one of a light emitting diode or a photodetector.
3. ~The sensor assembly of claim 1, wherein the coating comprises a first deformable region disposed between first and second structural supports and a second deformable region disposed between third and fourth structural supports.
4. ~The sensor assembly of claim 3, wherein the at least one optical component comprises a light emitting diode disposed within the first deformable region and capable of moving relative to the first and second structural supports and a photodetector disposed within the second deformable region and capable of moving relative to the third and fourth structural supports.
5. ~The sensor assembly of claim 1, comprising one or more signal transmission structures connected to the at least optical component.
6. ~The sensor assembly of claim 1, wherein the sensor assembly comprises at least one of a pulse oximetry sensor, a sensor for measuring a water fraction, or a combination thereof.
7. ~The sensor assembly of claim 1, wherein the frame comprises a single molded part.
8. ~The sensor assembly of claim 1, wherein the frame comprises two or more parts joined to form the frame.
9. ~The sensor assembly of claim 1, wherein the coating comprises a thermoplastic elastomer.
10. ~The sensor assembly of claim 9, wherein the thermoplastic elastomer comprises at least one of a thermoplastic polyolefin, a thermoplastic vulcanizate alloy, thermoplastic polyurethane, silicone, or a combination thereof.
11. ~A sensor assembly, comprising:
a frame;
an emitter disposed on the frame;
a detector disposed on the frame;
a biasing component attached to an end of the frame; and a coating provided over at least the frame, to form a sensor assembly.
12. ~A sensor assembly, comprising:

a frame;
an emitter disposed on the frame;
a detector disposed on the frame; and a coating provided over at least the frame to form a sensor assembly, wherein the coating provides a closing force that acts to close one end of the sensor assembly in the absence of an opposing force.
13. ~A method of manufacturing a sensor, comprising:
situating an emitter and a detector on a skeletal frame; and coating the skeletal frame with a coating material to form a unitary sensor assembly.
14. ~A method for acquiring physiological data, coinprising:
emitting two or more wavelengths of light from an emitter of a unitary sensor assembly clipped to a patient, wherein the unitary sensor assembly comprises an overmolded skeletal frame;

detecting transmitted or reflected light using a photodetector of the unitary sensor assembly; and determining a physiological parameter based on the detected light.
15. ~A sensor assembly, comprising:

a skeletal frame comprising at least a first portion and a second portion configured to move relative to one another;
at least one physiological sensor attached to the frame; and a coating provided over the frame and the at least one physiological sensor to form a sensor assembly.
16. ~A method of manufacturing a sensor body, comprising:
coating a skeletal frame with a coating material to form a sensor body.
17. ~A sensor body, comprising:
a frame;
a biasing component attached to the frame; and a coating provided over the frame and the biasing component to form a sensor body.
18. ~A sensor body, comprising:
a frame; and a coating provided over the frame to form a sensor assembly, wherein the coating provides a closing force that acts to close one end of the sensor assembly in the absence of an opposing force.
19. ~A skeletal frame of a sensor, comprising:
two or more structural support members having one or more spaces between the two or more structural support members, wherein the two or more structural support members are configured to provide support to an overlying coating when present.
20. ~A method for manufacturing a skeletal framework of a sensor, comprising:
forming two or more structural support members of a skeletal frame of a sensor having one or more spaces between the two or more structural support members, wherein the two or more structural support members are configured to provide support to an overlying coating when present.
CA002618490A 2005-08-08 2006-08-07 Medical sensor and technique for using the same Abandoned CA2618490A1 (en)

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Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7545272B2 (en) 2005-02-08 2009-06-09 Therasense, Inc. RF tag on test strips, test strip vials and boxes
US7869850B2 (en) * 2005-09-29 2011-01-11 Nellcor Puritan Bennett Llc Medical sensor for reducing motion artifacts and technique for using the same
US7486979B2 (en) 2005-09-30 2009-02-03 Nellcor Puritan Bennett Llc Optically aligned pulse oximetry sensor and technique for using the same
US7881762B2 (en) 2005-09-30 2011-02-01 Nellcor Puritan Bennett Llc Clip-style medical sensor and technique for using the same
US8073518B2 (en) * 2006-05-02 2011-12-06 Nellcor Puritan Bennett Llc Clip-style medical sensor and technique for using the same
US8145288B2 (en) 2006-08-22 2012-03-27 Nellcor Puritan Bennett Llc Medical sensor for reducing signal artifacts and technique for using the same
US8396527B2 (en) * 2006-09-22 2013-03-12 Covidien Lp Medical sensor for reducing signal artifacts and technique for using the same
US8190225B2 (en) 2006-09-22 2012-05-29 Nellcor Puritan Bennett Llc Medical sensor for reducing signal artifacts and technique for using the same
US8175671B2 (en) 2006-09-22 2012-05-08 Nellcor Puritan Bennett Llc Medical sensor for reducing signal artifacts and technique for using the same
US7796403B2 (en) 2006-09-28 2010-09-14 Nellcor Puritan Bennett Llc Means for mechanical registration and mechanical-electrical coupling of a faraday shield to a photodetector and an electrical circuit
US8116852B2 (en) * 2006-09-29 2012-02-14 Nellcor Puritan Bennett Llc System and method for detection of skin wounds and compartment syndromes
US8690864B2 (en) * 2007-03-09 2014-04-08 Covidien Lp System and method for controlling tissue treatment
US7713196B2 (en) * 2007-03-09 2010-05-11 Nellcor Puritan Bennett Llc Method for evaluating skin hydration and fluid compartmentalization
US20080220512A1 (en) * 2007-03-09 2008-09-11 Nellcor Puritan Bennett Llc Tunable laser-based spectroscopy system for non-invasively measuring body water content
US20080221411A1 (en) * 2007-03-09 2008-09-11 Nellcor Puritan Bennett Llc System and method for tissue hydration estimation
US8357090B2 (en) * 2007-03-09 2013-01-22 Covidien Lp Method and apparatus for estimating water reserves
US8175665B2 (en) * 2007-03-09 2012-05-08 Nellcor Puritan Bennett Llc Method and apparatus for spectroscopic tissue analyte measurement
US8897850B2 (en) * 2007-12-31 2014-11-25 Covidien Lp Sensor with integrated living hinge and spring
US8364224B2 (en) * 2008-03-31 2013-01-29 Covidien Lp System and method for facilitating sensor and monitor communication
US7880884B2 (en) 2008-06-30 2011-02-01 Nellcor Puritan Bennett Llc System and method for coating and shielding electronic sensor components
US8071935B2 (en) 2008-06-30 2011-12-06 Nellcor Puritan Bennett Llc Optical detector with an overmolded faraday shield
JP5756752B2 (en) 2008-07-03 2015-07-29 セルカコール・ラボラトリーズ・インコーポレイテッドCercacor Laboratories, Inc. Sensor
USD621516S1 (en) * 2008-08-25 2010-08-10 Masimo Laboratories, Inc. Patient monitoring sensor
US8203704B2 (en) * 2008-08-04 2012-06-19 Cercacor Laboratories, Inc. Multi-stream sensor for noninvasive measurement of blood constituents
ES2336997B1 (en) * 2008-10-16 2011-06-13 Sabirmedical,S.L. SYSTEM AND APPARATUS FOR NON-INVASIVE MEASUREMENT OF BLOOD PRESSURE.
US8688183B2 (en) 2009-09-03 2014-04-01 Ceracor Laboratories, Inc. Emitter driver for noninvasive patient monitor
GB201107931D0 (en) 2011-05-12 2011-06-22 Depuy Ireland Manufacturing method and product
US20130294969A1 (en) 2012-05-02 2013-11-07 Nellcor Puritan Bennett Llc Wireless, Reusable, Rechargeable Medical Sensors and System for Recharging and Disinfecting the Same
WO2014003806A1 (en) 2012-06-29 2014-01-03 Xhale, Inc. Photoplethysmography sensors
USD748274S1 (en) 2012-06-29 2016-01-26 David Rich Nasal alar photoplethysmography probe housing
US10881310B2 (en) 2012-08-25 2021-01-05 The Board Of Trustees Of The Leland Stanford Junior University Motion artifact mitigation methods and devices for pulse photoplethysmography
IL225182A (en) * 2013-03-12 2016-06-30 A D Integrity Ltd Ear clip for medical monitoring device
US9107644B2 (en) * 2013-07-05 2015-08-18 James Tyler Frix Continuous transdermal monitoring system and method
US10004408B2 (en) 2014-12-03 2018-06-26 Rethink Medical, Inc. Methods and systems for detecting physiology for monitoring cardiac health
CN107257650B (en) * 2015-02-23 2020-11-17 皇家飞利浦有限公司 Multi-state clip-type fixing method of pulse oximeter
US10004473B2 (en) * 2015-09-10 2018-06-26 Imediplus Inc. Heart rate detection method and device using heart sound acquired from auscultation positions
WO2017086072A1 (en) * 2015-11-17 2017-05-26 株式会社村田製作所 Pulse wave propagation time measurement device and biological state estimation device
US11331019B2 (en) 2017-08-07 2022-05-17 The Research Foundation For The State University Of New York Nanoparticle sensor having a nanofibrous membrane scaffold
EP4003157A4 (en) * 2019-07-29 2023-08-30 Cardio Ring Technologies, Inc. Bioinformation measuring device
USD952160S1 (en) * 2020-12-02 2022-05-17 Ulikekorea Co., Inc. Health diagnosis apparatus for poultry
WO2023195975A1 (en) * 2022-04-05 2023-10-12 Ziats Medical, Llc Linear element securing system and method of use

Family Cites Families (719)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US250275A (en) * 1881-11-29 Samuel w
US326715A (en) * 1885-09-22 cattanach
US3403555A (en) 1966-07-18 1968-10-01 Versaci Flowmeter
BE661207A (en) 1968-05-13 1965-07-16
US3721813A (en) 1971-02-01 1973-03-20 Perkin Elmer Corp Analytical instrument system
USD250275S (en) 1976-07-19 1978-11-14 Hewlett-Packard Company Self-attaching probe for use in photoelectric monitoring of body extremities
USD251387S (en) 1977-02-07 1979-03-20 Component Manufacturing Service, Inc. Electrical connector for electrocardiogram monitoring
US4281645A (en) 1977-06-28 1981-08-04 Duke University, Inc. Method and apparatus for monitoring metabolism in body organs
USD262488S (en) 1979-10-24 1981-12-29 Novatec, Inc. Pulse rate monitor
US4353372A (en) 1980-02-11 1982-10-12 Bunker Ramo Corporation Medical cable set and electrode therefor
US4334544A (en) 1980-04-28 1982-06-15 Amf Incorporated Ear lobe clip with heart beat sensor
US4350165A (en) 1980-05-23 1982-09-21 Trw Inc. Medical electrode assembly
NL8005145A (en) 1980-09-12 1982-04-01 Tno DEVICE FOR INDIRECT, NON-INVASIVE, CONTINUOUS MEASUREMENT OF BLOOD PRESSURE.
GB8416219D0 (en) 1984-06-26 1984-08-01 Antec Systems Patient monitoring apparatus
JPS58143243A (en) 1982-02-19 1983-08-25 Minolta Camera Co Ltd Measuring apparatus for coloring matter in blood without taking out blood
US4700708A (en) 1982-09-02 1987-10-20 Nellcor Incorporated Calibrated optical oximeter probe
US4621643A (en) 1982-09-02 1986-11-11 Nellcor Incorporated Calibrated optical oximeter probe
US4770179A (en) 1982-09-02 1988-09-13 Nellcor Incorporated Calibrated optical oximeter probe
US4653498A (en) 1982-09-13 1987-03-31 Nellcor Incorporated Pulse oximeter monitor
EP0127947B1 (en) 1983-05-11 1990-08-29 Nellcor Incorporated Sensor having cutaneous conformance
US4830014A (en) 1983-05-11 1989-05-16 Nellcor Incorporated Sensor having cutaneous conformance
US5109849A (en) 1983-08-30 1992-05-05 Nellcor, Inc. Perinatal pulse oximetry sensor
US4938218A (en) 1983-08-30 1990-07-03 Nellcor Incorporated Perinatal pulse oximetry sensor
US5140989A (en) 1983-10-14 1992-08-25 Somanetics Corporation Examination instrument for optical-response diagnostic apparatus
US5217013A (en) 1983-10-14 1993-06-08 Somanetics Corporation Patient sensor for optical cerebral oximeter and the like
US4603700A (en) 1983-12-09 1986-08-05 The Boc Group, Inc. Probe monitoring system for oximeter
DE3405444A1 (en) 1984-02-15 1985-08-22 Kraus, Werner, Dipl.-Ing., 8000 München Pulse sensor
US4714341A (en) 1984-02-23 1987-12-22 Minolta Camera Kabushiki Kaisha Multi-wavelength oximeter having a means for disregarding a poor signal
US4510551A (en) 1984-05-21 1985-04-09 Endeco Canada Limited Portable memory module
US4677528A (en) 1984-05-31 1987-06-30 Motorola, Inc. Flexible printed circuit board having integrated circuit die or the like affixed thereto
IT1206462B (en) 1984-08-07 1989-04-27 Anic Spa MULTI-WAVE LENGTH PULSED LIGHT PHOTOMETER FOR NON-INVASIVE MONITORING.
US4934372A (en) 1985-04-01 1990-06-19 Nellcor Incorporated Method and apparatus for detecting optical pulses
US4911167A (en) 1985-06-07 1990-03-27 Nellcor Incorporated Method and apparatus for detecting optical pulses
USRE35122E (en) 1985-04-01 1995-12-19 Nellcor Incorporated Method and apparatus for detecting optical pulses
US4928692A (en) 1985-04-01 1990-05-29 Goodman David E Method and apparatus for detecting optical pulses
US4802486A (en) 1985-04-01 1989-02-07 Nellcor Incorporated Method and apparatus for detecting optical pulses
DE3516338A1 (en) 1985-05-07 1986-11-13 Drägerwerk AG, 2400 Lübeck Mounting for a measurement sensor
CA1278044C (en) 1985-06-06 1990-12-18 The Boc Group, Inc. Hinged finger stall with light emitter and detector
US4685464A (en) 1985-07-05 1987-08-11 Nellcor Incorporated Durable sensor for detecting optical pulses
US4890619A (en) 1986-04-15 1990-01-02 Hatschek Rudolf A System for the measurement of the content of a gas in blood, in particular the oxygen saturation of blood
JPS6323645A (en) 1986-05-27 1988-01-30 住友電気工業株式会社 Reflection heating type oxymeter
US4759369A (en) 1986-07-07 1988-07-26 Novametrix Medical Systems, Inc. Pulse oximeter
US4819646A (en) 1986-08-18 1989-04-11 Physio-Control Corporation Feedback-controlled method and apparatus for processing signals used in oximetry
US4913150A (en) 1986-08-18 1990-04-03 Physio-Control Corporation Method and apparatus for the automatic calibration of signals employed in oximetry
US4859056A (en) 1986-08-18 1989-08-22 Physio-Control Corporation Multiple-pulse method and apparatus for use in oximetry
US5259381A (en) 1986-08-18 1993-11-09 Physio-Control Corporation Apparatus for the automatic calibration of signals employed in oximetry
US4800495A (en) 1986-08-18 1989-01-24 Physio-Control Corporation Method and apparatus for processing signals used in oximetry
US4869253A (en) 1986-08-18 1989-09-26 Physio-Control Corporation Method and apparatus for indicating perfusion and oxygen saturation trends in oximetry
US4892101A (en) 1986-08-18 1990-01-09 Physio-Control Corporation Method and apparatus for offsetting baseline portion of oximeter signal
JPS6365845A (en) 1986-09-05 1988-03-24 ミノルタ株式会社 Oximeter apparatus
US4726382A (en) 1986-09-17 1988-02-23 The Boc Group, Inc. Inflatable finger cuff
US4824242A (en) 1986-09-26 1989-04-25 Sensormedics Corporation Non-invasive oximeter and method
US4714080A (en) 1986-10-06 1987-12-22 Nippon Colin Co., Ltd. Method and apparatus for noninvasive monitoring of arterial blood oxygen saturation
US4865038A (en) 1986-10-09 1989-09-12 Novametrix Medical Systems, Inc. Sensor appliance for non-invasive monitoring
JPS63111837A (en) 1986-10-29 1988-05-17 日本光電工業株式会社 Apparatus for measuring concentration of light absorbing substance in blood
DE3639402A1 (en) 1986-11-18 1988-05-19 Siemens Ag METHOD FOR THE PRODUCTION OF A MULTI-LAYERED CIRCUIT BOARD AND THE CIRCUIT BOARD PRODUCED THEREOF
US5193543A (en) 1986-12-12 1993-03-16 Critikon, Inc. Method and apparatus for measuring arterial blood constituents
DE3703458A1 (en) 1987-02-05 1988-08-18 Hewlett Packard Gmbh Medical oxygen saturation sensor using electromagnetic waves - has support segment for transmitter and receiver elements and clamping segment for fitting round patent
US4776339A (en) 1987-03-05 1988-10-11 N.A.D., Inc. Interlock for oxygen saturation monitor anesthesia apparatus
US4880304A (en) 1987-04-01 1989-11-14 Nippon Colin Co., Ltd. Optical sensor for pulse oximeter
JPS63252239A (en) 1987-04-09 1988-10-19 Sumitomo Electric Ind Ltd Reflection type oxymeter
USRE33643E (en) 1987-04-30 1991-07-23 Nonin Medical, Inc. Pulse oximeter with circuit leakage and ambient light compensation
US4773422A (en) 1987-04-30 1988-09-27 Nonin Medical, Inc. Single channel pulse oximeter
JPS63277039A (en) 1987-05-08 1988-11-15 Hamamatsu Photonics Kk Diagnostic apparatus
JPS63275323A (en) 1987-05-08 1988-11-14 Hamamatsu Photonics Kk Diagnostic apparatus
US4722120A (en) 1987-06-23 1988-02-02 James Lu Spring clip
GB8719333D0 (en) 1987-08-14 1987-09-23 Swansea University College Of Motion artefact rejection system
US4805623A (en) 1987-09-04 1989-02-21 Vander Corporation Spectrophotometric method for quantitatively determining the concentration of a dilute component in a light- or other radiation-scattering environment
US4796636A (en) 1987-09-10 1989-01-10 Nippon Colin Co., Ltd. Noninvasive reflectance oximeter
US4819752A (en) 1987-10-02 1989-04-11 Datascope Corp. Blood constituent measuring device and method
US4848901A (en) 1987-10-08 1989-07-18 Critikon, Inc. Pulse oximeter sensor control system
US4825879A (en) 1987-10-08 1989-05-02 Critkon, Inc. Pulse oximeter sensor
US4807631A (en) 1987-10-09 1989-02-28 Critikon, Inc. Pulse oximetry system
US4807630A (en) 1987-10-09 1989-02-28 Advanced Medical Systems, Inc. Apparatus and method for use in pulse oximeters
US4859057A (en) 1987-10-13 1989-08-22 Lawrence Medical Systems, Inc. Oximeter apparatus
US4863265A (en) 1987-10-16 1989-09-05 Mine Safety Appliances Company Apparatus and method for measuring blood constituents
US4854699A (en) 1987-11-02 1989-08-08 Nippon Colin Co., Ltd. Backscatter oximeter
DE3877894T2 (en) 1987-11-02 1993-06-24 Sumitomo Electric Industries ORGANIC LIGHT MEASURING PROBE.
US4800885A (en) 1987-12-02 1989-01-31 The Boc Group, Inc. Blood constituent monitoring apparatus and methods with frequency division multiplexing
US4927264A (en) 1987-12-02 1990-05-22 Omron Tateisi Electronics Co. Non-invasive measuring method and apparatus of blood constituents
US4846183A (en) 1987-12-02 1989-07-11 The Boc Group, Inc. Blood parameter monitoring apparatus and methods
US4781195A (en) 1987-12-02 1988-11-01 The Boc Group, Inc. Blood monitoring apparatus and methods with amplifier input dark current correction
US4960126A (en) 1988-01-15 1990-10-02 Criticare Systems, Inc. ECG synchronized pulse oximeter
US4883353A (en) 1988-02-11 1989-11-28 Puritan-Bennett Corporation Pulse oximeter
US4883055A (en) 1988-03-11 1989-11-28 Puritan-Bennett Corporation Artificially induced blood pulse for use with a pulse oximeter
DE3809084C2 (en) 1988-03-18 1999-01-28 Nicolay Gmbh Sensor for the non-invasive measurement of the pulse frequency and / or the oxygen saturation of the blood and method for its production
DE3810411A1 (en) 1988-03-26 1989-10-12 Nicolay Gmbh DEVICE FOR FIXING A SENSOR, IN PARTICULAR A SENSOR FOR OXIMETRIC MEASUREMENTS
US5078136A (en) 1988-03-30 1992-01-07 Nellcor Incorporated Method and apparatus for calculating arterial oxygen saturation based plethysmographs including transients
US4869254A (en) 1988-03-30 1989-09-26 Nellcor Incorporated Method and apparatus for calculating arterial oxygen saturation
US4964408A (en) 1988-04-29 1990-10-23 Thor Technology Corporation Oximeter sensor assembly with integral cable
US5069213A (en) 1988-04-29 1991-12-03 Thor Technology Corporation Oximeter sensor assembly with integral cable and encoder
US5041187A (en) 1988-04-29 1991-08-20 Thor Technology Corporation Oximeter sensor assembly with integral cable and method of forming the same
JPH06169902A (en) 1988-05-05 1994-06-21 Sentinel Monitoring Inc Pulse type non-invasion type oxymeter and technology for measuring it
EP0341327B1 (en) 1988-05-09 1993-09-15 Hewlett-Packard GmbH A method for processing signals, particularly for oximetric measurements on living human tissue
US5361758A (en) 1988-06-09 1994-11-08 Cme Telemetrix Inc. Method and device for measuring concentration levels of blood constituents non-invasively
US4948248A (en) 1988-07-22 1990-08-14 Invivo Research Inc. Blood constituent measuring device and method
US4825872A (en) 1988-08-05 1989-05-02 Critikon, Inc. Finger sensor for pulse oximetry system
JPH0288041A (en) 1988-09-24 1990-03-28 Misawahoomu Sogo Kenkyusho:Kk Finger tip pulse wave sensor
US5099842A (en) 1988-10-28 1992-03-31 Nellcor Incorporated Perinatal pulse oximetry probe
US5564417A (en) 1991-01-24 1996-10-15 Non-Invasive Technology, Inc. Pathlength corrected oximeter and the like
US5873821A (en) 1992-05-18 1999-02-23 Non-Invasive Technology, Inc. Lateralization spectrophotometer
USH1039H (en) 1988-11-14 1992-04-07 The United States Of America As Represented By The Secretary Of The Air Force Intrusion-free physiological condition monitoring
JPH02164341A (en) 1988-12-19 1990-06-25 Nippon Koden Corp Hemoglobin concentration measuring device
US5353799A (en) 1991-01-22 1994-10-11 Non Invasive Technology, Inc. Examination of subjects using photon migration with high directionality techniques
US5553614A (en) 1988-12-21 1996-09-10 Non-Invasive Technology, Inc. Examination of biological tissue using frequency domain spectroscopy
US5119815A (en) 1988-12-21 1992-06-09 Nim, Incorporated Apparatus for determining the concentration of a tissue pigment of known absorbance, in vivo, using the decay characteristics of scintered electromagnetic radiation
US5111817A (en) 1988-12-29 1992-05-12 Medical Physics, Inc. Noninvasive system and method for enhanced arterial oxygen saturation determination and arterial blood pressure monitoring
US5365066A (en) 1989-01-19 1994-11-15 Futrex, Inc. Low cost means for increasing measurement sensitivity in LED/IRED near-infrared instruments
US5218207A (en) 1989-01-19 1993-06-08 Futrex, Inc. Using led harmonic wavelengths for near-infrared quantitative
US5028787A (en) 1989-01-19 1991-07-02 Futrex, Inc. Non-invasive measurement of blood glucose
US5086229A (en) 1989-01-19 1992-02-04 Futrex, Inc. Non-invasive measurement of blood glucose
FI82366C (en) 1989-02-06 1991-03-11 Instrumentarium Oy MAETNING AV BLODETS SAMMANSAETTNING.
US5596986A (en) 1989-03-17 1997-01-28 Scico, Inc. Blood oximeter
US5902235A (en) 1989-03-29 1999-05-11 Somanetics Corporation Optical cerebral oximeter
USD326715S (en) 1989-04-18 1992-06-02 Hewlett-Packard Company Medical sensors for measuring oxygen saturation or the like
DE3912993C2 (en) 1989-04-20 1998-01-29 Nicolay Gmbh Optoelectronic sensor for generating electrical signals based on physiological values
US5040539A (en) 1989-05-12 1991-08-20 The United States Of America Pulse oximeter for diagnosis of dental pulp pathology
JP2766317B2 (en) 1989-06-22 1998-06-18 コーリン電子株式会社 Pulse oximeter
JPH0315502U (en) 1989-06-28 1991-02-15
US5090410A (en) 1989-06-28 1992-02-25 Datascope Investment Corp. Fastener for attaching sensor to the body
US5299120A (en) 1989-09-15 1994-03-29 Hewlett-Packard Company Method for digitally processing signals containing information regarding arterial blood flow
US5058588A (en) 1989-09-19 1991-10-22 Hewlett-Packard Company Oximeter and medical sensor therefor
US5007423A (en) 1989-10-04 1991-04-16 Nippon Colin Company Ltd. Oximeter sensor temperature control
US5216598A (en) 1989-10-04 1993-06-01 Colin Electronics Co., Ltd. System for correction of trends associated with pulse wave forms in oximeters
US5203329A (en) 1989-10-05 1993-04-20 Colin Electronics Co., Ltd. Noninvasive reflectance oximeter sensor providing controlled minimum optical detection depth
US5094239A (en) 1989-10-05 1992-03-10 Colin Electronics Co., Ltd. Composite signal implementation for acquiring oximetry signals
US5190038A (en) 1989-11-01 1993-03-02 Novametrix Medical Systems, Inc. Pulse oximeter with improved accuracy and response time
DE3938759A1 (en) 1989-11-23 1991-05-29 Philips Patentverwaltung NON-INVASIVE OXIMETER ARRANGEMENT
US5224478A (en) 1989-11-25 1993-07-06 Colin Electronics Co., Ltd. Reflecting-type oxymeter probe
KR100213554B1 (en) 1989-11-28 1999-08-02 제이슨 오토 가도시 Fetal probe
US5080098A (en) 1989-12-18 1992-01-14 Sentinel Monitoring, Inc. Non-invasive sensor
EP0613653B1 (en) 1990-02-15 1996-11-13 Hewlett-Packard GmbH Method for non-invasive measurement of oxygen saturation
US5152296A (en) 1990-03-01 1992-10-06 Hewlett-Packard Company Dual-finger vital signs monitor
US5104623A (en) 1990-04-03 1992-04-14 Minnesota Mining And Manufacturing Company Apparatus and assembly for use in optically sensing a compositional blood parameter
US5066859A (en) 1990-05-18 1991-11-19 Karkar Maurice N Hematocrit and oxygen saturation blood analyzer
GB9011887D0 (en) 1990-05-26 1990-07-18 Le Fit Ltd Pulse responsive device
WO1991018549A1 (en) 1990-05-29 1991-12-12 Yue Samuel K Fetal probe apparatus
US5239185A (en) 1990-06-22 1993-08-24 Hitachi, Ltd. Method and equipment for measuring absorptance of light scattering materials using plural wavelengths of light
NZ238717A (en) 1990-06-27 1994-08-26 Futrex Inc Blood glucose level measured by transmitting near-infrared energy through body part
US5259761A (en) 1990-08-06 1993-11-09 Jenifer M. Schnettler Tooth vitality probe and process
EP0471898B1 (en) 1990-08-22 1999-01-13 Nellcor Puritan Bennett Incorporated Foetal pulse oximetry apparatus
US5158082A (en) 1990-08-23 1992-10-27 Spacelabs, Inc. Apparatus for heating tissue with a photoplethysmograph sensor
JP3329453B2 (en) 1990-08-29 2002-09-30 カデル、セオドアー・イー Finger receiving device
US5170786A (en) 1990-09-28 1992-12-15 Novametrix Medical Systems, Inc. Reusable probe system
US5055671A (en) 1990-10-03 1991-10-08 Spacelabs, Inc. Apparatus for detecting transducer movement using a first and second light detector
US6266546B1 (en) 1990-10-06 2001-07-24 In-Line Diagnostics Corporation System for noninvasive hematocrit monitoring
US5372136A (en) 1990-10-06 1994-12-13 Noninvasive Medical Technology Corporation System and method for noninvasive hematocrit monitoring
US6681128B2 (en) 1990-10-06 2004-01-20 Hema Metrics, Inc. System for noninvasive hematocrit monitoring
US5209230A (en) 1990-10-19 1993-05-11 Nellcor Incorporated Adhesive pulse oximeter sensor with reusable portion
US6263221B1 (en) 1991-01-24 2001-07-17 Non-Invasive Technology Quantitative analyses of biological tissue using phase modulation spectroscopy
US5193542A (en) 1991-01-28 1993-03-16 Missanelli John S Peripartum oximetric monitoring apparatus
US5291884A (en) 1991-02-07 1994-03-08 Minnesota Mining And Manufacturing Company Apparatus for measuring a blood parameter
JPH0614922B2 (en) 1991-02-15 1994-03-02 日本光電工業株式会社 Calibration test equipment for pulse oximeter
US5125403A (en) 1991-02-20 1992-06-30 Culp Joel B Device and method for engagement of an oximeter probe
US5154175A (en) 1991-03-04 1992-10-13 Gunther Ted J Intrauterine fetal EKG-oximetry cable apparatus
US5349953A (en) 1991-03-05 1994-09-27 Sensormedics, Corp. Photoplethysmographics using component-amplitude-division multiplexing
US5343818A (en) 1991-03-05 1994-09-06 Sensormedics Corp. Photoplethysmographics using energy-reducing waveform shaping
US5349952A (en) 1991-03-05 1994-09-27 Sensormedics Corp. Photoplethysmographics using phase-division multiplexing
US5490505A (en) 1991-03-07 1996-02-13 Masimo Corporation Signal processing apparatus
US5267566A (en) 1991-03-07 1993-12-07 Maged Choucair Apparatus and method for blood pressure monitoring
US5632272A (en) 1991-03-07 1997-05-27 Masimo Corporation Signal processing apparatus
MX9702434A (en) 1991-03-07 1998-05-31 Masimo Corp Signal processing apparatus.
ATE184716T1 (en) 1991-03-07 1999-10-15 Masimo Corp DEVICE AND METHOD FOR SIGNAL PROCESSING
US5226417A (en) 1991-03-11 1993-07-13 Nellcor, Inc. Apparatus for the detection of motion transients
US5237994A (en) 1991-03-12 1993-08-24 Square One Technology Integrated lead frame pulse oximetry sensor
US5995855A (en) 1998-02-11 1999-11-30 Masimo Corporation Pulse oximetry sensor adapter
US5638818A (en) 1991-03-21 1997-06-17 Masimo Corporation Low noise optical probe
US6580086B1 (en) 1999-08-26 2003-06-17 Masimo Corporation Shielded optical probe and method
US5645440A (en) 1995-10-16 1997-07-08 Masimo Corporation Patient cable connector
US6541756B2 (en) 1991-03-21 2003-04-01 Masimo Corporation Shielded optical probe having an electrical connector
DE4138702A1 (en) 1991-03-22 1992-09-24 Madaus Medizin Elektronik METHOD AND DEVICE FOR THE DIAGNOSIS AND QUANTITATIVE ANALYSIS OF APNOE AND FOR THE SIMULTANEOUS DETERMINATION OF OTHER DISEASES
US5273036A (en) 1991-04-03 1993-12-28 Ppg Industries, Inc. Apparatus and method for monitoring respiration
US5218962A (en) 1991-04-15 1993-06-15 Nellcor Incorporated Multiple region pulse oximetry probe and oximeter
US5247932A (en) 1991-04-15 1993-09-28 Nellcor Incorporated Sensor for intrauterine use
US5313940A (en) 1991-05-15 1994-05-24 Nihon Kohden Corporation Photo-electric pulse wave measuring probe
DE69214391T2 (en) 1991-06-19 1997-05-15 Endotronics Inc Cell culture apparatus
US5402777A (en) 1991-06-28 1995-04-04 Alza Corporation Methods and devices for facilitated non-invasive oxygen monitoring
US5267563A (en) 1991-06-28 1993-12-07 Nellcor Incorporated Oximeter sensor with perfusion enhancing
DE69227545T2 (en) 1991-07-12 1999-04-29 Mark R Robinson Oximeter for the reliable clinical determination of blood oxygen saturation in a fetus
US5413100A (en) 1991-07-17 1995-05-09 Effets Biologiques Exercice Non-invasive method for the in vivo determination of the oxygen saturation rate of arterial blood, and device for carrying out the method
US5351685A (en) 1991-08-05 1994-10-04 Nellcor Incorporated Condensed oximeter system with noise reduction software
EP0527703B1 (en) 1991-08-12 1995-06-28 AVL Medical Instruments AG Device for measuring at least one gaseous concentration level in particular the oxygen concentration level in blood
US5429129A (en) 1991-08-22 1995-07-04 Sensor Devices, Inc. Apparatus for determining spectral absorption by a specific substance in a fluid
US5368025A (en) 1991-08-22 1994-11-29 Sensor Devices, Inc. Non-invasive oximeter probe
US5217012A (en) 1991-08-22 1993-06-08 Sensor Devices Inc. Noninvasive oximeter probe
JP3124073B2 (en) 1991-08-27 2001-01-15 日本コーリン株式会社 Blood oxygen saturation monitor
US5246003A (en) 1991-08-28 1993-09-21 Nellcor Incorporated Disposable pulse oximeter sensor
US6714803B1 (en) 1991-09-03 2004-03-30 Datex-Ohmeda, Inc. Pulse oximetry SpO2 determination
US5934277A (en) 1991-09-03 1999-08-10 Datex-Ohmeda, Inc. System for pulse oximetry SpO2 determination
US5247931A (en) 1991-09-16 1993-09-28 Mine Safety Appliances Company Diagnostic sensor clasp utilizing a slot, pivot and spring hinge mechanism
US5213099A (en) 1991-09-30 1993-05-25 The United States Of America As Represented By The Secretary Of The Air Force Ear canal pulse/oxygen saturation measuring device
JP3115374B2 (en) 1991-10-11 2000-12-04 テルモ株式会社 Patient monitoring system
US5249576A (en) 1991-10-24 1993-10-05 Boc Health Care, Inc. Universal pulse oximeter probe
US5311865A (en) 1991-11-07 1994-05-17 Mayeux Charles D Plastic finger oximetry probe holder
US5253645A (en) 1991-12-13 1993-10-19 Critikon, Inc. Method of producing an audible alarm in a blood pressure and pulse oximeter monitor
JPH0569784U (en) 1991-12-28 1993-09-21 センチュリーメディカル株式会社 Display device in medical equipment
EP0549835B1 (en) 1991-12-30 1996-03-13 Hamamatsu Photonics K.K. Diagnostic apparatus
FR2685865B1 (en) 1992-01-08 1998-04-10 Distr App Medicaux Off OPTICAL SENSOR, PARTICULARLY FOR MEASURING THE OXYGEN SATURATION RATE IN ARTERIAL BLOOD.
EP0553372B1 (en) 1992-01-29 1996-11-13 Hewlett-Packard GmbH Method and system for monitoring vital signs
US5385143A (en) 1992-02-06 1995-01-31 Nihon Kohden Corporation Apparatus for measuring predetermined data of living tissue
US5297548A (en) 1992-02-07 1994-03-29 Ohmeda Inc. Arterial blood monitoring probe
DE4210102C2 (en) 1992-03-27 1999-02-25 Rall Gerhard Device for optically determining parameters of perfused tissue
US5263244A (en) 1992-04-17 1993-11-23 Gould Inc. Method of making a flexible printed circuit sensor assembly for detecting optical pulses
JP3170866B2 (en) 1992-04-24 2001-05-28 株式会社ノーリツ 1 can 2 circuit type instant heating type heat exchanger
DE69211986T2 (en) 1992-05-15 1996-10-31 Hewlett Packard Gmbh Medical sensor
JP3091929B2 (en) 1992-05-28 2000-09-25 日本光電工業株式会社 Pulse oximeter
JP3165983B2 (en) 1992-06-15 2001-05-14 日本光電工業株式会社 Light emitting element driving device for pulse oximeter
US5377675A (en) 1992-06-24 1995-01-03 Nellcor, Inc. Method and apparatus for improved fetus contact with fetal probe
US5355880A (en) 1992-07-06 1994-10-18 Sandia Corporation Reliable noninvasive measurement of blood gases
JP3116252B2 (en) 1992-07-09 2000-12-11 日本光電工業株式会社 Pulse oximeter
US6222189B1 (en) 1992-07-15 2001-04-24 Optix, Lp Methods of enhancing optical signals by mechanical manipulation in non-invasive testing
US6411832B1 (en) 1992-07-15 2002-06-25 Optix Lp Method of improving reproducibility of non-invasive measurements
US5425360A (en) 1992-07-24 1995-06-20 Sensormedics Corporation Molded pulse oximeter sensor
US6342039B1 (en) 1992-08-19 2002-01-29 Lawrence A. Lynn Microprocessor system for the simplified diagnosis of sleep apnea
US20050062609A9 (en) 1992-08-19 2005-03-24 Lynn Lawrence A. Pulse oximetry relational alarm system for early recognition of instability and catastrophic occurrences
US6609016B1 (en) 1997-07-14 2003-08-19 Lawrence A. Lynn Medical microprocessor system and method for providing a ventilation indexed oximetry value
US6223064B1 (en) 1992-08-19 2001-04-24 Lawrence A. Lynn Microprocessor system for the simplified diagnosis of sleep apnea
US5680857A (en) 1992-08-28 1997-10-28 Spacelabs Medical, Inc. Alignment guide system for transmissive pulse oximetry sensors
US5348003A (en) 1992-09-03 1994-09-20 Sirraya, Inc. Method and apparatus for chemical analysis
JP2547840Y2 (en) 1992-09-25 1997-09-17 日本光電工業株式会社 Oximeter probe
US5323776A (en) 1992-10-15 1994-06-28 Picker International, Inc. MRI compatible pulse oximetry system
US5329922A (en) 1992-10-19 1994-07-19 Atlee Iii John L Oximetric esophageal probe
US5368224A (en) 1992-10-23 1994-11-29 Nellcor Incorporated Method for reducing ambient noise effects in electronic monitoring instruments
EP0690692A4 (en) 1992-12-01 1999-02-10 Somanetics Corp Patient sensor for optical cerebral oximeters
US5287853A (en) 1992-12-11 1994-02-22 Hewlett-Packard Company Adapter cable for connecting a pulsoximetry sensor unit to a medical measuring device
US5551423A (en) 1993-01-26 1996-09-03 Nihon Kohden Corporation Pulse oximeter probe
DE4304693C2 (en) 1993-02-16 2002-02-21 Gerhard Rall Sensor device for measuring vital parameters of a fetus during childbirth
JP2586392Y2 (en) 1993-03-15 1998-12-02 日本光電工業株式会社 Probe for pulse oximeter
US5687719A (en) 1993-03-25 1997-11-18 Ikuo Sato Pulse oximeter probe
US5368026A (en) 1993-03-26 1994-11-29 Nellcor Incorporated Oximeter with motion detection for alarm modification
US5520177A (en) 1993-03-26 1996-05-28 Nihon Kohden Corporation Oximeter probe
US5348004A (en) 1993-03-31 1994-09-20 Nellcor Incorporated Electronic processor for pulse oximeter
US5676141A (en) 1993-03-31 1997-10-14 Nellcor Puritan Bennett Incorporated Electronic processor for pulse oximeters
US5497771A (en) 1993-04-02 1996-03-12 Mipm Mammendorfer Institut Fuer Physik Und Medizin Gmbh Apparatus for measuring the oxygen saturation of fetuses during childbirth
JP3625475B2 (en) 1993-04-12 2005-03-02 イン‐ライン ダイアグノスティックス コーポレイション Non-intrusive system for monitoring hematocrit values
US5521851A (en) 1993-04-26 1996-05-28 Nihon Kohden Corporation Noise reduction method and apparatus
US5339810A (en) 1993-05-03 1994-08-23 Marquette Electronics, Inc. Pulse oximetry sensor
US5494043A (en) 1993-05-04 1996-02-27 Vital Insite, Inc. Arterial sensor
AU7170094A (en) 1993-05-20 1994-12-20 Somanetics Corporation Improved electro-optical sensor for spectrophotometric medical devices
WO1994027492A1 (en) 1993-05-21 1994-12-08 Nims, Inc. Discriminating between valid and artifactual pulse waveforms
WO1994027493A1 (en) 1993-05-28 1994-12-08 Somanetics Corporation Method and apparatus for spectrophotometric cerebral oximetry
JP3310390B2 (en) 1993-06-10 2002-08-05 浜松ホトニクス株式会社 Method and apparatus for measuring concentration of light absorbing substance in scattering medium
US5452717A (en) 1993-07-14 1995-09-26 Masimo Corporation Finger-cot probe
US5337744A (en) 1993-07-14 1994-08-16 Masimo Corporation Low noise finger cot probe
US5425362A (en) 1993-07-30 1995-06-20 Criticare Fetal sensor device
EP0641543A1 (en) 1993-09-07 1995-03-08 Ohmeda Inc. Heat-sealed neo-natal medical monitoring probe
US5511546A (en) 1993-09-20 1996-04-30 Hon; Edward H. Finger apparatus for measuring continuous cutaneous blood pressure and electrocardiogram electrode
JP3345481B2 (en) 1993-09-22 2002-11-18 興和株式会社 Pulse wave spectrometer
JP3387171B2 (en) 1993-09-28 2003-03-17 セイコーエプソン株式会社 Pulse wave detection device and exercise intensity measurement device
US5485847A (en) 1993-10-08 1996-01-23 Nellcor Puritan Bennett Incorporated Pulse oximeter using a virtual trigger for heart rate synchronization
US5411023A (en) 1993-11-24 1995-05-02 The Shielding Corporation Optical sensor system
US5417207A (en) 1993-12-06 1995-05-23 Sensor Devices, Inc. Apparatus for the invasive use of oximeter probes
JP3116259B2 (en) 1993-12-07 2000-12-11 日本光電工業株式会社 Probe for pulse oximeter
JP3125079B2 (en) 1993-12-07 2001-01-15 日本光電工業株式会社 Pulse oximeter
JP2605584Y2 (en) 1993-12-07 2000-07-24 日本光電工業株式会社 Multi sensor
DE69305178T2 (en) 1993-12-11 1997-02-13 Hewlett Packard Gmbh Method for detecting an abnormal condition in a pulse powered oximeter system
WO1995016970A1 (en) 1993-12-14 1995-06-22 Mochida Pharmaceutical Co., Ltd. Medical measuring apparatus
US5438986A (en) 1993-12-14 1995-08-08 Criticare Systems, Inc. Optical sensor
US5411024A (en) 1993-12-15 1995-05-02 Corometrics Medical Systems, Inc. Fetal pulse oximetry sensor
US5492118A (en) 1993-12-16 1996-02-20 Board Of Trustees Of The University Of Illinois Determining material concentrations in tissues
US5560355A (en) 1993-12-17 1996-10-01 Nellcor Puritan Bennett Incorporated Medical sensor with amplitude independent output
US5645059A (en) 1993-12-17 1997-07-08 Nellcor Incorporated Medical sensor with modulated encoding scheme
JP3238813B2 (en) 1993-12-20 2001-12-17 テルモ株式会社 Pulse oximeter
JP3464697B2 (en) 1993-12-21 2003-11-10 興和株式会社 Oxygen saturation meter
US5507286A (en) 1993-12-23 1996-04-16 Medical Taping Systems, Inc. Method and apparatus for improving the durability of a sensor
US5553615A (en) 1994-01-31 1996-09-10 Minnesota Mining And Manufacturing Company Method and apparatus for noninvasive prediction of hematocrit
US5437275A (en) 1994-02-02 1995-08-01 Biochem International Inc. Pulse oximetry sensor
US5632273A (en) 1994-02-04 1997-05-27 Hamamatsu Photonics K.K. Method and means for measurement of biochemical components
US5995859A (en) 1994-02-14 1999-11-30 Nihon Kohden Corporation Method and apparatus for accurately measuring the saturated oxygen in arterial blood by substantially eliminating noise from the measurement signal
US5830135A (en) 1994-03-31 1998-11-03 Bosque; Elena M. Fuzzy logic alarm system for pulse oximeters
US5575284A (en) 1994-04-01 1996-11-19 University Of South Florida Portable pulse oximeter
US5421329A (en) 1994-04-01 1995-06-06 Nellcor, Inc. Pulse oximeter sensor optimized for low saturation
US6662033B2 (en) 1994-04-01 2003-12-09 Nellcor Incorporated Pulse oximeter and sensor optimized for low saturation
US6371921B1 (en) 1994-04-15 2002-04-16 Masimo Corporation System and method of determining whether to recalibrate a blood pressure monitor
JP3364819B2 (en) 1994-04-28 2003-01-08 日本光電工業株式会社 Blood absorption substance concentration measurement device
US5402779A (en) 1994-04-29 1995-04-04 Chen; William X. Method for the non-invasive detection of an intravascular injection of an anesthetic by the use of an indicator dye
US5491299A (en) 1994-06-03 1996-02-13 Siemens Medical Systems, Inc. Flexible multi-parameter cable
US5490523A (en) 1994-06-29 1996-02-13 Nonin Medical Inc. Finger clip pulse oximeter
US5912656A (en) 1994-07-01 1999-06-15 Ohmeda Inc. Device for producing a display from monitored data
DE4423597C1 (en) 1994-07-06 1995-08-10 Hewlett Packard Gmbh Pulsoximetric ear sensor
US5664270A (en) 1994-07-19 1997-09-09 Kinetic Concepts, Inc. Patient interface system
DE4429758A1 (en) 1994-08-22 1996-02-29 Buschmann Johannes Method for validating devices for photometry of living tissue and device for carrying out the method
DE4429845C1 (en) 1994-08-23 1995-10-19 Hewlett Packard Gmbh Pulse oximeter with flexible strap for attachment to hand or foot
US5697367A (en) 1994-10-14 1997-12-16 Somanetics Corporation Specially grounded sensor for clinical spectrophotometric procedures
US5503148A (en) 1994-11-01 1996-04-02 Ohmeda Inc. System for pulse oximetry SPO2 determination
DE4442260C2 (en) 1994-11-28 2000-06-08 Mipm Mammendorfer Inst Fuer Ph Method and arrangement for the non-invasive in vivo determination of oxygen saturation
US5505199A (en) 1994-12-01 1996-04-09 Kim; Bill H. Sudden infant death syndrome monitor
DE4442855B4 (en) 1994-12-01 2004-04-01 Gerhard Dipl.-Ing. Rall Use of a pulse oximetry sensor device
US5676139A (en) 1994-12-14 1997-10-14 Ohmeda Inc. Spring clip probe housing
US5673692A (en) 1995-02-03 1997-10-07 Biosignals Ltd. Co. Single site, multi-variable patient monitor
US5692503A (en) 1995-03-10 1997-12-02 Kuenstner; J. Todd Method for noninvasive (in-vivo) total hemoglobin, oxyhemogolobin, deoxyhemoglobin, carboxyhemoglobin and methemoglobin concentration determination
US5524617A (en) 1995-03-14 1996-06-11 Nellcor, Incorporated Isolated layer pulse oximetry
US5617852A (en) 1995-04-06 1997-04-08 Macgregor; Alastair R. Method and apparatus for non-invasively determining blood analytes
US5619992A (en) 1995-04-06 1997-04-15 Guthrie; Robert B. Methods and apparatus for inhibiting contamination of reusable pulse oximetry sensors
US5774213A (en) 1995-04-21 1998-06-30 Trebino; Rick P. Techniques for measuring difference of an optical property at two wavelengths by modulating two sources to have opposite-phase components at a common frequency
JP3326580B2 (en) 1995-05-08 2002-09-24 日本光電工業株式会社 Biological tissue transmitted light sensor
US5662105A (en) 1995-05-17 1997-09-02 Spacelabs Medical, Inc. System and method for the extractment of physiological signals
US5851178A (en) 1995-06-02 1998-12-22 Ohmeda Inc. Instrumented laser diode probe connector
US5743262A (en) 1995-06-07 1998-04-28 Masimo Corporation Blood glucose monitoring system
US5638816A (en) 1995-06-07 1997-06-17 Masimo Corporation Active pulse blood constituent monitoring
US5760910A (en) 1995-06-07 1998-06-02 Masimo Corporation Optical filter for spectroscopic measurement and method of producing the optical filter
US5758644A (en) 1995-06-07 1998-06-02 Masimo Corporation Manual and automatic probe calibration
IL122515A (en) 1995-06-09 1999-10-28 Cybro Medical Ltd Sensor method and device for optical blood oximetry
US5645060A (en) 1995-06-14 1997-07-08 Nellcor Puritan Bennett Incorporated Method and apparatus for removing artifact and noise from pulse oximetry
US5685301A (en) 1995-06-16 1997-11-11 Ohmeda Inc. Apparatus for precise determination of operating characteristics of optical devices contained in a monitoring probe
US5829439A (en) 1995-06-28 1998-11-03 Hitachi Medical Corporation Needle-like ultrasonic probe for ultrasonic diagnosis apparatus, method of producing same, and ultrasonic diagnosis apparatus using same
US6055447A (en) 1995-07-06 2000-04-25 Institute Of Critical Care Medicine Patient CO2 Measurement
US6095974A (en) 1995-07-21 2000-08-01 Respironics, Inc. Disposable fiber optic probe
DE69635228T2 (en) 1995-07-21 2006-05-18 Respironics, Inc. DEVICE FOR PULSE OXIMETRY THROUGH LASER DIODE BY MULTIFASER OPTICAL CABLES AND DISPOSABLE FIBER OPTIC PROBE
US5558096A (en) 1995-07-21 1996-09-24 Biochem International, Inc. Blood pulse detection method using autocorrelation
GB9515649D0 (en) 1995-07-31 1995-09-27 Johnson & Johnson Medical Surface sensor device
US5853364A (en) 1995-08-07 1998-12-29 Nellcor Puritan Bennett, Inc. Method and apparatus for estimating physiological parameters using model-based adaptive filtering
FI111214B (en) 1995-08-17 2003-06-30 Tunturipyoerae Oy Giver
US5800348A (en) 1995-08-31 1998-09-01 Hewlett-Packard Company Apparatus and method for medical monitoring, in particular pulse oximeter
DE19537646C2 (en) 1995-10-10 1998-09-17 Hewlett Packard Gmbh Method and device for detecting falsified measurement values in pulse oximetry for measuring oxygen saturation
USD393830S (en) 1995-10-16 1998-04-28 Masimo Corporation Patient cable connector
AP931A (en) 1995-10-23 2001-02-02 Cytometrics Inc Method and apparatus for reflected imaging analysis.
US5626140A (en) 1995-11-01 1997-05-06 Spacelabs Medical, Inc. System and method of multi-sensor fusion of physiological measurements
DE19541605C2 (en) 1995-11-08 1999-06-24 Hewlett Packard Co Sensor and method for performing medical measurements, in particular pulse oximetric measurements, on the human finger
US5839439A (en) 1995-11-13 1998-11-24 Nellcor Puritan Bennett Incorporated Oximeter sensor with rigid inner housing and pliable overmold
US5660567A (en) 1995-11-14 1997-08-26 Nellcor Puritan Bennett Incorporated Medical sensor connector with removable encoding device
US5588427A (en) 1995-11-20 1996-12-31 Spacelabs Medical, Inc. Enhancement of physiological signals using fractal analysis
US5724967A (en) 1995-11-21 1998-03-10 Nellcor Puritan Bennett Incorporated Noise reduction apparatus for low level analog signals
US5995856A (en) 1995-11-22 1999-11-30 Nellcor, Incorporated Non-contact optical monitoring of physiological parameters
US6041247A (en) 1995-11-29 2000-03-21 Instrumentarium Corp Non-invasive optical measuring sensor and measuring method
US5810724A (en) 1995-12-01 1998-09-22 Nellcor Puritan Bennett Incorporated Reusable sensor accessory containing a conformable spring activated rubber sleeved clip
DE19651690C2 (en) 1995-12-13 2001-12-13 Bernreuter Peter Measuring method for determining blood oxygen saturation
US6226540B1 (en) 1995-12-13 2001-05-01 Peter Bernreuter Measuring process for blood gas analysis sensors
US20020014533A1 (en) 1995-12-18 2002-02-07 Xiaxun Zhu Automated object dimensioning system employing contour tracing, vertice detection, and forner point detection and reduction methods on 2-d range data maps
US5818985A (en) 1995-12-20 1998-10-06 Nellcor Puritan Bennett Incorporated Optical oximeter probe adapter
US5807247A (en) 1995-12-20 1998-09-15 Nellcor Puritan Bennett Incorporated Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes
AUPN740796A0 (en) 1996-01-04 1996-01-25 Circuitry Systems Limited Biomedical data collection apparatus
US5891026A (en) 1996-01-29 1999-04-06 Ntc Technology Inc. Extended life disposable pulse oximetry sensor and method of making
SE9600322L (en) 1996-01-30 1997-07-31 Hoek Instr Ab Sensor for pulse oximetry with fiber optic signal transmission
US5746697A (en) 1996-02-09 1998-05-05 Nellcor Puritan Bennett Incorporated Medical diagnostic apparatus with sleep mode
US5797841A (en) 1996-03-05 1998-08-25 Nellcor Puritan Bennett Incorporated Shunt barrier in pulse oximeter sensor
US6253097B1 (en) 1996-03-06 2001-06-26 Datex-Ohmeda, Inc. Noninvasive medical monitoring instrument using surface emitting laser devices
JP3245042B2 (en) 1996-03-11 2002-01-07 沖電気工業株式会社 Tuning oscillation circuit
ES2162672T3 (en) 1996-04-01 2002-01-01 Linde Medical Sensors Ag RECOGNITION OF PARASITE SIGNS IN THE PULSOXIMETRIC MEASUREMENT.
US5790729A (en) 1996-04-10 1998-08-04 Ohmeda Inc. Photoplethysmographic instrument having an integrated multimode optical coupler device
US5766127A (en) 1996-04-15 1998-06-16 Ohmeda Inc. Method and apparatus for improved photoplethysmographic perfusion-index monitoring
US5692505A (en) 1996-04-25 1997-12-02 Fouts; James Michael Data processing systems and methods for pulse oximeters
US5919133A (en) 1996-04-26 1999-07-06 Ohmeda Inc. Conformal wrap for pulse oximeter sensor
US5913819A (en) 1996-04-26 1999-06-22 Datex-Ohmeda, Inc. Injection molded, heat-sealed housing and half-etched lead frame for oximeter sensor
WO1997042903A1 (en) 1996-05-15 1997-11-20 Nellcor Puritan Bennett Incorporated Semi-reusable sensor with disposable sleeve
US5807248A (en) 1996-05-15 1998-09-15 Ohmeda Inc. Medical monitoring probe with modular device housing
US5752914A (en) 1996-05-28 1998-05-19 Nellcor Puritan Bennett Incorporated Continuous mesh EMI shield for pulse oximetry sensor
FI962448A (en) 1996-06-12 1997-12-13 Instrumentarium Oy Method, apparatus and sensor for the determination of fractional oxygen saturation
US5890929A (en) 1996-06-19 1999-04-06 Masimo Corporation Shielded medical connector
US6027452A (en) 1996-06-26 2000-02-22 Vital Insite, Inc. Rapid non-invasive blood pressure measuring device
US5879294A (en) 1996-06-28 1999-03-09 Hutchinson Technology Inc. Tissue chromophore measurement system
US6163715A (en) 1996-07-17 2000-12-19 Criticare Systems, Inc. Direct to digital oximeter and method for calculating oxygenation levels
US5842981A (en) 1996-07-17 1998-12-01 Criticare Systems, Inc. Direct to digital oximeter
AU3721997A (en) 1996-07-19 1998-02-10 Alexander K. Mills Device for noninvasive determination of blood parameters
US6151107A (en) 1996-07-26 2000-11-21 Linde Medical Sensors Ag Method of non-invasive determination of oxygen saturation in tissue in which blood is circulating
US5916155A (en) 1996-07-30 1999-06-29 Nellcor Puritan Bennett Incorporated Fetal sensor with securing balloons remote from optics
US5842982A (en) 1996-08-07 1998-12-01 Nellcor Puritan Bennett Incorporated Infant neonatal pulse oximeter sensor
US5813980A (en) 1996-08-13 1998-09-29 Nellcor Puritan Bennett Incorporated Fetal pulse oximetry sensor with remote securing mechanism
US5776058A (en) 1996-08-13 1998-07-07 Nellcor Puritan Bennett Incorporated Pressure-attached presenting part fetal pulse oximetry sensor
US5823952A (en) 1996-08-14 1998-10-20 Nellcor Incorporated Pulse oximeter sensor with differential slip coefficient
JP3844815B2 (en) 1996-08-30 2006-11-15 浜松ホトニクス株式会社 Method and apparatus for measuring absorption information of scatterers
US5727547A (en) 1996-09-04 1998-03-17 Nellcor Puritan Bennett Incorporated Presenting part fetal oximeter sensor with securing mechanism for providing tension to scalp attachment
CN1203805C (en) 1996-09-10 2005-06-01 精工爱普生株式会社 Organism state measuring device and relaxation instructing device
US5782756A (en) 1996-09-19 1998-07-21 Nellcor Puritan Bennett Incorporated Method and apparatus for in vivo blood constituent analysis
US5782758A (en) 1996-09-23 1998-07-21 Ohmeda Inc. Method and apparatus for identifying the presence of noise in a time division multiplexed oximeter
US5891022A (en) 1996-09-25 1999-04-06 Ohmeda Inc. Apparatus for performing multiwavelength photoplethysmography
DE19640807A1 (en) 1996-10-02 1997-09-18 Siemens Ag Noninvasive optical detection of oxygen supply to e.g. brain or liver
JPH10108846A (en) 1996-10-03 1998-04-28 Nippon Koden Corp Holder for organic signal detector
US5851179A (en) 1996-10-10 1998-12-22 Nellcor Puritan Bennett Incorporated Pulse oximeter sensor with articulating head
US6018673A (en) 1996-10-10 2000-01-25 Nellcor Puritan Bennett Incorporated Motion compatible sensor for non-invasive optical blood analysis
US5800349A (en) 1996-10-15 1998-09-01 Nonin Medical, Inc. Offset pulse oximeter sensor
US5964701A (en) 1996-10-24 1999-10-12 Massachusetts Institute Of Technology Patient monitoring finger ring sensor
US5904651A (en) 1996-10-28 1999-05-18 Ep Technologies, Inc. Systems and methods for visualizing tissue during diagnostic or therapeutic procedures
US5830136A (en) 1996-10-31 1998-11-03 Nellcor Puritan Bennett Incorporated Gel pad optical sensor
US5817008A (en) 1996-10-31 1998-10-06 Spacelabs Medical, Inc. Conformal pulse oximetry sensor and monitor
US5830137A (en) 1996-11-18 1998-11-03 University Of South Florida Green light pulse oximeter
DE19647877C2 (en) 1996-11-19 2000-06-15 Univ Ilmenau Tech Method and circuit arrangement for determining the oxygen saturation in the blood
US5810723A (en) 1996-12-05 1998-09-22 Essential Medical Devices Non-invasive carboxyhemoglobin analyer
US6397093B1 (en) 1996-12-05 2002-05-28 Essential Medical Devices, Inc. Non-invasive carboxyhemoglobin analyzer
US5921921A (en) 1996-12-18 1999-07-13 Nellcor Puritan-Bennett Pulse oximeter with sigma-delta converter
US5842979A (en) 1997-02-14 1998-12-01 Ohmeda Inc. Method and apparatus for improved photoplethysmographic monitoring of oxyhemoglobin, deoxyhemoglobin, carboxyhemoglobin and methemoglobin
US6159147A (en) 1997-02-28 2000-12-12 Qrs Diagnostics, Llc Personal computer card for collection of real-time biological data
US5827179A (en) 1997-02-28 1998-10-27 Qrs Diagnostic, Llc Personal computer card for collection for real-time biological data
US6712762B1 (en) 1997-02-28 2004-03-30 Ors Diagnostic, Llc Personal computer card for collection of real-time biological data
US6113541A (en) 1997-03-07 2000-09-05 Agilent Technologies, Inc. Noninvasive blood chemistry measurement method and system
US5954644A (en) 1997-03-24 1999-09-21 Ohmeda Inc. Method for ambient light subtraction in a photoplethysmographic measurement instrument
US6285894B1 (en) 1997-03-25 2001-09-04 Siemens Aktiengesellschaft Method and device for non-invasive in vivo determination of blood constituents
US5817010A (en) 1997-03-25 1998-10-06 Ohmeda Inc. Disposable sensor holder
US5827182A (en) 1997-03-31 1998-10-27 Ohmeda Inc. Multiple LED sets in oximetry sensors
US6195575B1 (en) 1997-04-02 2001-02-27 Nellcor Puritan Bennett Incorporated Fetal sensor which self-inflates using capillary force
US5891024A (en) 1997-04-09 1999-04-06 Ohmeda Inc. Two stage calibration and analyte measurement scheme for spectrophotomeric analysis
DE69700253T2 (en) 1997-04-12 1999-09-23 Hewlett Packard Co Method and device for determining the concentration of an ingredient
DE69704264T2 (en) 1997-04-12 2001-06-28 Agilent Technologies Inc Method and device for the non-invasive determination of the concentration of a component
US5919134A (en) 1997-04-14 1999-07-06 Masimo Corp. Method and apparatus for demodulating signals in a pulse oximetry system
US6229856B1 (en) 1997-04-14 2001-05-08 Masimo Corporation Method and apparatus for demodulating signals in a pulse oximetry system
US6002952A (en) 1997-04-14 1999-12-14 Masimo Corporation Signal processing apparatus and method
EP0872210B1 (en) 1997-04-18 2006-01-04 Koninklijke Philips Electronics N.V. Intermittent measuring of arterial oxygen saturation of hemoglobin
IL121079A0 (en) 1997-06-15 1997-11-20 Spo Medical Equipment Ltd Physiological stress detector device and method
US6353750B1 (en) 1997-06-27 2002-03-05 Sysmex Corporation Living body inspecting apparatus and noninvasive blood analyzer using the same
US5924985A (en) 1997-07-29 1999-07-20 Ohmeda Inc. Patient probe disconnect alarm
US6466808B1 (en) 1999-11-22 2002-10-15 Mallinckrodt Inc. Single device for both heating and temperature measurement in an oximeter sensor
US5924982A (en) 1997-07-30 1999-07-20 Nellcor Puritan Bennett Incorporated Oximeter sensor with user-modifiable color surface
US6115621A (en) 1997-07-30 2000-09-05 Nellcor Puritan Bennett Incorporated Oximetry sensor with offset emitters and detector
US6343223B1 (en) 1997-07-30 2002-01-29 Mallinckrodt Inc. Oximeter sensor with offset emitters and detector and heating device
US6018674A (en) 1997-08-11 2000-01-25 Datex-Ohmeda, Inc. Fast-turnoff photodiodes with switched-gain preamplifiers in photoplethysmographic measurement instruments
FI973454A (en) 1997-08-22 1999-02-23 Instrumentarium Oy A resilient device in a measuring sensor for observing the properties of living tissue
GB9717858D0 (en) 1997-08-23 1997-10-29 Electrode Company Ltd The Electrode Company Ltd
US6361501B1 (en) 1997-08-26 2002-03-26 Seiko Epson Corporation Pulse wave diagnosing device
GB2329015B (en) 1997-09-05 2002-02-13 Samsung Electronics Co Ltd Method and device for noninvasive measurement of concentrations of blood components
EP0941694B1 (en) 1997-09-05 2007-08-22 Seiko Epson Corporation Method for configuring a reflected light sensor
US5865736A (en) 1997-09-30 1999-02-02 Nellcor Puritan Bennett, Inc. Method and apparatus for nuisance alarm reductions
US5960610A (en) 1997-10-01 1999-10-05 Nellcor Puritan Bennett Incorporated Method of curving a fetal sensor
US5971930A (en) 1997-10-17 1999-10-26 Siemens Medical Systems, Inc. Method and apparatus for removing artifact from physiological signals
US5995858A (en) 1997-11-07 1999-11-30 Datascope Investment Corp. Pulse oximeter
US5987343A (en) 1997-11-07 1999-11-16 Datascope Investment Corp. Method for storing pulse oximetry sensor characteristics
US6035223A (en) 1997-11-19 2000-03-07 Nellcor Puritan Bennett Inc. Method and apparatus for determining the state of an oximetry sensor
WO1999026528A1 (en) 1997-11-26 1999-06-03 Somanetics Corporation Method and apparatus for monitoring fetal cerebral oxygenation during childbirth
US5983122A (en) 1997-12-12 1999-11-09 Ohmeda Inc. Apparatus and method for improved photoplethysmographic monitoring of multiple hemoglobin species using emitters having optimized center wavelengths
JP3853053B2 (en) 1997-12-17 2006-12-06 松下電器産業株式会社 Biological information measuring device
EP0864293B1 (en) 1997-12-22 1999-08-04 Hewlett-Packard Company Telemetry system, in particular for medical purposes
JP3567319B2 (en) 1997-12-26 2004-09-22 日本光電工業株式会社 Probe for pulse oximeter
US6184521B1 (en) 1998-01-06 2001-02-06 Masimo Corporation Photodiode detector with integrated noise shielding
US6400973B1 (en) 1998-01-20 2002-06-04 Bowden's Automated Products, Inc. Arterial blood flow simulator
US6179159B1 (en) 1998-01-26 2001-01-30 Mariruth D. Gurley Communicable disease barrier digit cover and dispensing package therefor
US5978693A (en) 1998-02-02 1999-11-02 E.P. Limited Apparatus and method for reduction of motion artifact
JP2002501803A (en) 1998-02-05 2002-01-22 イン−ラインダイアグノスティックスコーポレイション Non-invasive blood component monitoring method and apparatus
US6014576A (en) 1998-02-27 2000-01-11 Datex-Ohmeda, Inc. Segmented photoplethysmographic sensor with universal probe-end
JPH11244267A (en) 1998-03-03 1999-09-14 Fuji Photo Film Co Ltd Blood component concentration measuring device
US6525386B1 (en) 1998-03-10 2003-02-25 Masimo Corporation Non-protruding optoelectronic lens
US5924980A (en) 1998-03-11 1999-07-20 Siemens Corporate Research, Inc. Method and apparatus for adaptively reducing the level of noise in an acquired signal
US6165005A (en) 1998-03-19 2000-12-26 Masimo Corporation Patient cable sensor switch
US5997343A (en) 1998-03-19 1999-12-07 Masimo Corporation Patient cable sensor switch
US6078833A (en) 1998-03-25 2000-06-20 I.S.S. (Usa) Inc. Self referencing photosensor
US5991648A (en) 1998-03-30 1999-11-23 Palco Labs, Inc. Adjustable pulse oximetry sensor for pediatric use
US6047201A (en) 1998-04-02 2000-04-04 Jackson, Iii; William H. Infant blood oxygen monitor and SIDS warning device
EP0988521A1 (en) 1998-04-14 2000-03-29 Instrumentarium Corporation Sensor assembly and method for measuring nitrogen dioxide
US5916154A (en) 1998-04-22 1999-06-29 Nellcor Puritan Bennett Method of enhancing performance in pulse oximetry via electrical stimulation
US6064899A (en) 1998-04-23 2000-05-16 Nellcor Puritan Bennett Incorporated Fiber optic oximeter connector with element indicating wavelength shift
US6094592A (en) 1998-05-26 2000-07-25 Nellcor Puritan Bennett, Inc. Methods and apparatus for estimating a physiological parameter using transforms
US5891021A (en) 1998-06-03 1999-04-06 Perdue Holdings, Inc. Partially rigid-partially flexible electro-optical sensor for fingertip transillumination
ATE521277T1 (en) 1998-06-03 2011-09-15 Masimo Corp STEREO PULSE OXIMETER
DE69800355T2 (en) 1998-06-05 2001-03-01 Hewlett Packard Co Pulse rate and heart rate matching detection for pulse oximetry
IL124787A0 (en) 1998-06-07 1999-01-26 Itamar Medical C M 1997 Ltd Pressure applicator devices particularly useful for non-invasive detection of medical conditions
US5920263A (en) 1998-06-11 1999-07-06 Ohmeda, Inc. De-escalation of alarm priorities in medical devices
IL124965A (en) 1998-06-17 2002-08-14 Orsense Ltd Non-invasive method of optical measurements for determining concentration of a substance in blood
US5999834A (en) 1998-06-18 1999-12-07 Ntc Technology, Inc. Disposable adhesive wrap for use with reusable pulse oximetry sensor and method of making
WO2000009004A2 (en) 1998-08-13 2000-02-24 Whitland Research Limited Optical device
US6285896B1 (en) 1998-07-13 2001-09-04 Masimo Corporation Fetal pulse oximetry sensor
US6671526B1 (en) 1998-07-17 2003-12-30 Nihon Kohden Corporation Probe and apparatus for determining concentration of light-absorbing materials in living tissue
JP2000083933A (en) 1998-07-17 2000-03-28 Nippon Koden Corp Instrument for measuring concentration of light absorptive material in vital tissue
US6430513B1 (en) 1998-09-04 2002-08-06 Perkinelmer Instruments Llc Monitoring constituents of an animal organ using statistical correlation
JP2002524118A (en) 1998-09-09 2002-08-06 ユー.エス. アーミー インスティテュート オブ サージカル リサーチ Disposable pulse oximeter assembly and its protective cover
US6393310B1 (en) 1998-09-09 2002-05-21 J. Todd Kuenstner Methods and systems for clinical analyte determination by visible and infrared spectroscopy
US20020028990A1 (en) 1998-09-09 2002-03-07 Shepherd John M. Device and method for monitoring arterial oxygen saturation
US6256524B1 (en) 1998-09-09 2001-07-03 The United States Of America As Represented By The Secretary Of The Army Pulse oximeter sensor combined with a combination oropharyngeal airway and bite block
CA2343207A1 (en) 1998-09-09 2000-03-16 U.S. Army Institute Of Surgical Research Nasopharyngeal airway with reflectance pulse oximeter sensor
EP1112020A1 (en) 1998-09-09 2001-07-04 U.S. Army Institute of Surgical Research Method for monitoring arterial oxygen saturation
JP4038280B2 (en) 1998-09-14 2008-01-23 シスメックス株式会社 Non-invasive biological component measuring device
AU754375B2 (en) 1998-09-18 2002-11-14 Government Of The United States Of America As Represented By The Secretary Of The Army Self-piercing pulse oximeter sensor assembly
US6064898A (en) 1998-09-21 2000-05-16 Essential Medical Devices Non-invasive blood component analyzer
US6298252B1 (en) 1998-09-29 2001-10-02 Mallinckrodt, Inc. Oximeter sensor with encoder connected to detector
WO2000018290A1 (en) 1998-09-29 2000-04-06 Mallinckrodt Inc. Oximeter sensor with encoded temperature characteristic
CA2345633A1 (en) 1998-09-29 2000-04-06 Mallinckrodt Inc. Multiple-code oximeter calibration element
US6615065B1 (en) 1998-10-13 2003-09-02 Somanetics Corporation Multi-channel non-invasive tissue oximeter
US6144868A (en) 1998-10-15 2000-11-07 Sensidyne, Inc. Reusable pulse oximeter probe and disposable bandage apparatus
US6721585B1 (en) 1998-10-15 2004-04-13 Sensidyne, Inc. Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices
US6519487B1 (en) 1998-10-15 2003-02-11 Sensidyne, Inc. Reusable pulse oximeter probe and disposable bandage apparatus
US6393311B1 (en) 1998-10-15 2002-05-21 Ntc Technology Inc. Method, apparatus and system for removing motion artifacts from measurements of bodily parameters
US6519486B1 (en) 1998-10-15 2003-02-11 Ntc Technology Inc. Method, apparatus and system for removing motion artifacts from measurements of bodily parameters
US6684091B2 (en) 1998-10-15 2004-01-27 Sensidyne, Inc. Reusable pulse oximeter probe and disposable bandage method
US6343224B1 (en) 1998-10-15 2002-01-29 Sensidyne, Inc. Reusable pulse oximeter probe and disposable bandage apparatus
US6321100B1 (en) 1999-07-13 2001-11-20 Sensidyne, Inc. Reusable pulse oximeter probe with disposable liner
US6006120A (en) 1998-10-22 1999-12-21 Palco Labs, Inc. Cordless Pulse oximeter
US6261236B1 (en) 1998-10-26 2001-07-17 Valentin Grimblatov Bioresonance feedback method and apparatus
US6061584A (en) 1998-10-28 2000-05-09 Lovejoy; David A. Pulse oximetry sensor
US6438396B1 (en) 1998-11-05 2002-08-20 Cytometrics, Inc. Method and apparatus for providing high contrast imaging
US6144444A (en) 1998-11-06 2000-11-07 Medtronic Avecor Cardiovascular, Inc. Apparatus and method to determine blood parameters
US7006855B1 (en) 1998-11-16 2006-02-28 S.P.O. Medical Equipment Ltd. Sensor for radiance based diagnostics
US6463311B1 (en) 1998-12-30 2002-10-08 Masimo Corporation Plethysmograph pulse recognition processor
US6684090B2 (en) 1999-01-07 2004-01-27 Masimo Corporation Pulse oximetry data confidence indicator
US6606511B1 (en) 1999-01-07 2003-08-12 Masimo Corporation Pulse oximetry pulse indicator
US6280381B1 (en) 1999-07-22 2001-08-28 Instrumentation Metrics, Inc. Intelligent system for noninvasive blood analyte prediction
WO2000042911A1 (en) 1999-01-25 2000-07-27 Masimo Corporation Universal/upgrading pulse oximeter
US6770028B1 (en) 1999-01-25 2004-08-03 Masimo Corporation Dual-mode pulse oximeter
US20020140675A1 (en) 1999-01-25 2002-10-03 Ali Ammar Al System and method for altering a display mode based on a gravity-responsive sensor
US6438399B1 (en) 1999-02-16 2002-08-20 The Children's Hospital Of Philadelphia Multi-wavelength frequency domain near-infrared cerebral oximeter
ATE422838T1 (en) 1999-03-08 2009-03-15 Nellcor Puritan Bennett Llc METHOD AND CIRCUIT FOR STORING AND PROVIDING HISTORICAL PHYSIOLOGICAL DATA
IL129790A0 (en) 1999-03-09 2000-02-29 Orsense Ltd A device for enhancement of blood-related signals
US6360114B1 (en) 1999-03-25 2002-03-19 Masimo Corporation Pulse oximeter probe-off detector
US6308089B1 (en) 1999-04-14 2001-10-23 O.B. Scientific, Inc. Limited use medical probe
US6675031B1 (en) 1999-04-14 2004-01-06 Mallinckrodt Inc. Method and circuit for indicating quality and accuracy of physiological measurements
WO2000064338A2 (en) 1999-04-23 2000-11-02 Massachusetts Institute Of Technology Isolating ring sensor design
US6226539B1 (en) 1999-05-26 2001-05-01 Mallinckrodt, Inc. Pulse oximeter having a low power led drive
EP1200905B1 (en) 1999-06-10 2016-08-24 Koninklijke Philips N.V. Recognition of a useful signal in a measurement signal
EP1192560A1 (en) 1999-06-10 2002-04-03 Agilent Technologies, Inc. (a Delaware corporation) Interference suppression for measuring signals with periodic wanted signal
EP1196862A1 (en) 1999-06-10 2002-04-17 Koninklijke Philips Electronics N.V. Quality indicator for measurement signals, in particular, for medical measurement signals such as those used in measuring oxygen saturation
US6587704B1 (en) 1999-06-16 2003-07-01 Orsense Ltd. Method for non-invasive optical measurements of blood parameters
CN1358075A (en) 1999-06-18 2002-07-10 马西默有限公司 Pulse oximeter probe-off detection system
US20030018243A1 (en) 1999-07-07 2003-01-23 Gerhardt Thomas J. Selectively plated sensor
JP2001017404A (en) 1999-07-09 2001-01-23 Koike Medical:Kk Medical measuring device
US6760609B2 (en) 1999-07-14 2004-07-06 Providence Health System - Oregon Adaptive calibration pulsed oximetry method and device
EP1198196A4 (en) 1999-07-14 2007-05-02 Providence Health Sys Oregon Adaptive calibration pulsed oximetry method and device
US6512937B2 (en) 1999-07-22 2003-01-28 Sensys Medical, Inc. Multi-tier method of developing localized calibration models for non-invasive blood analyte prediction
WO2001010295A1 (en) 1999-08-06 2001-02-15 The Board Of Regents Of The University Of Texas System Optoacoustic monitoring of blood oxygenation
US6515273B2 (en) 1999-08-26 2003-02-04 Masimo Corporation System for indicating the expiration of the useful operating life of a pulse oximetry sensor
CA2384476A1 (en) 1999-09-10 2001-03-15 Stephen H. Gorski Oximeter sensor with functional liner
JP3627214B2 (en) 1999-09-13 2005-03-09 日本光電工業株式会社 Blood absorption substance measuring device
US6213952B1 (en) 1999-09-28 2001-04-10 Orsense Ltd. Optical device for non-invasive measurement of blood related signals utilizing a finger holder
US6708049B1 (en) 1999-09-28 2004-03-16 Nellcor Puritan Bennett Incorporated Sensor with signature of data relating to sensor
US6339715B1 (en) 1999-09-30 2002-01-15 Ob Scientific Method and apparatus for processing a physiological signal
MXPA02003412A (en) 1999-10-07 2004-09-10 K Mills Alexander Method and apparatus for non invasive continuous determination of physiological parameters of a patient s blood.
US6400971B1 (en) 1999-10-12 2002-06-04 Orsense Ltd. Optical device for non-invasive measurement of blood-related signals and a finger holder therefor
US7359741B2 (en) 1999-11-15 2008-04-15 Spo Medical Equipment Ltd. Sensor and radiance based diagnostics
US6665551B1 (en) 1999-11-19 2003-12-16 Nihon Kohden Corporation Current driving system of light emitting diode
CA2290083A1 (en) 1999-11-19 2001-05-19 Linde Medical Sensors Ag. Device for the combined measurement of the arterial oxygen saturation and the transcutaneous co2 partial pressure of an ear lobe
CA2392219A1 (en) 1999-11-22 2001-05-31 Mallinckrodt Inc. Pulse oximeter sensor with widened metal strip
JP2001149349A (en) 1999-11-26 2001-06-05 Nippon Koden Corp Sensor for living body
US6542764B1 (en) 1999-12-01 2003-04-01 Masimo Corporation Pulse oximeter monitor for expressing the urgency of the patient's condition
US6377829B1 (en) 1999-12-09 2002-04-23 Masimo Corporation Resposable pulse oximetry sensor
US6671531B2 (en) 1999-12-09 2003-12-30 Masimo Corporation Sensor wrap including foldable applicator
US6950687B2 (en) 1999-12-09 2005-09-27 Masimo Corporation Isolation and communication element for a resposable pulse oximetry sensor
US6381479B1 (en) 1999-12-17 2002-04-30 Date-Ohmeda, Inc. Pulse oximeter with improved DC and low frequency rejection
US6397092B1 (en) 1999-12-17 2002-05-28 Datex-Ohmeda, Inc. Oversampling pulse oximeter
US6363269B1 (en) 1999-12-17 2002-03-26 Datex-Ohmeda, Inc. Synchronized modulation/demodulation method and apparatus for frequency division multiplexed spectrophotometric system
US6360113B1 (en) 1999-12-17 2002-03-19 Datex-Ohmeda, Inc. Photoplethysmographic instrument
US6408198B1 (en) 1999-12-17 2002-06-18 Datex-Ohmeda, Inc. Method and system for improving photoplethysmographic analyte measurements by de-weighting motion-contaminated data
US6152754A (en) 1999-12-21 2000-11-28 Masimo Corporation Circuit board based cable connector
WO2001045553A1 (en) 1999-12-22 2001-06-28 Orsense Ltd. A method of optical measurements for determining various parameters of the patient's blood
US6594513B1 (en) 2000-01-12 2003-07-15 Paul D. Jobsis Method and apparatus for determining oxygen saturation of blood in body organs
US7198778B2 (en) 2000-01-18 2007-04-03 Mallinckrodt Inc. Tumor-targeted optical contrast agents
US6564088B1 (en) 2000-01-21 2003-05-13 University Of Massachusetts Probe for localized tissue spectroscopy
CA2397840A1 (en) 2000-01-28 2001-08-02 The General Hospital Corporation Fetal pulse oximetry
CN100506143C (en) 2000-02-10 2009-07-01 德雷格医疗系统公司 Method and apparatus for detecting physiological parameter
AU2001236874B8 (en) 2000-02-11 2004-05-27 Government Of The United States Of America As Represented By The Secretary Of The Army Pacifier pulse oximeter sensor
US6385821B1 (en) 2000-02-17 2002-05-14 Udt Sensors, Inc. Apparatus for securing an oximeter probe to a patient
IL135077A0 (en) 2000-03-15 2001-05-20 Orsense Ltd A probe for use in non-invasive measurements of blood related parameters
US6538721B2 (en) 2000-03-24 2003-03-25 Nikon Corporation Scanning exposure apparatus
AU2001250983A1 (en) 2000-03-29 2001-10-08 Kinderlife Instruments, Inc. Method and apparatus for determining physiological characteristics
US6453183B1 (en) 2000-04-10 2002-09-17 Stephen D. Walker Cerebral oxygenation monitor
ES2392818T3 (en) 2000-04-17 2012-12-14 Nellcor Puritan Bennett Llc Pulse oximeter sensor with section function
US6699199B2 (en) 2000-04-18 2004-03-02 Massachusetts Institute Of Technology Photoplethysmograph signal-to-noise line enhancement
AU2001250960A1 (en) 2000-04-28 2001-11-12 Kinderlife Instruments, Inc. Method for determining blood constituents
AU2001259258A1 (en) 2000-05-02 2001-11-12 Cas Medical Systems, Inc. Method for non-invasive spectrophotometric blood oxygenation monitoring
US6449501B1 (en) 2000-05-26 2002-09-10 Ob Scientific, Inc. Pulse oximeter with signal sonification
US6554788B1 (en) 2000-06-02 2003-04-29 Cobe Cardiovascular, Inc. Hematocrit sampling system
US6510331B1 (en) 2000-06-05 2003-01-21 Glenn Williams Switching device for multi-sensor array
US6430525B1 (en) 2000-06-05 2002-08-06 Masimo Corporation Variable mode averager
GB0014854D0 (en) 2000-06-16 2000-08-09 Isis Innovation System and method for acquiring data
GB0014855D0 (en) 2000-06-16 2000-08-09 Isis Innovation Combining measurements from different sensors
US6470199B1 (en) 2000-06-21 2002-10-22 Masimo Corporation Elastic sock for positioning an optical probe
DE10030862B4 (en) 2000-06-23 2006-02-09 Nicolay Verwaltungs-Gmbh Device for fixing a medical measuring device, in particular a pulse oximetry sensor, and use of such a device
US6697656B1 (en) 2000-06-27 2004-02-24 Masimo Corporation Pulse oximetry sensor compatible with multiple pulse oximetry systems
US6587703B2 (en) 2000-09-18 2003-07-01 Photonify Technologies, Inc. System and method for measuring absolute oxygen saturation
US6597931B1 (en) 2000-09-18 2003-07-22 Photonify Technologies, Inc. System and method for absolute oxygen saturation
US6640116B2 (en) 2000-08-18 2003-10-28 Masimo Corporation Optical spectroscopy pathlength measurement system
US6719686B2 (en) 2000-08-30 2004-04-13 Mallinckrodt, Inc. Fetal probe having an optical imaging device
US6591123B2 (en) 2000-08-31 2003-07-08 Mallinckrodt Inc. Oximeter sensor with digital memory recording sensor data
US6600940B1 (en) 2000-08-31 2003-07-29 Mallinckrodt Inc. Oximeter sensor with digital memory
US6628975B1 (en) 2000-08-31 2003-09-30 Mallinckrodt Inc. Oximeter sensor with digital memory storing data
US6606510B2 (en) 2000-08-31 2003-08-12 Mallinckrodt Inc. Oximeter sensor with digital memory encoding patient data
US6553241B2 (en) 2000-08-31 2003-04-22 Mallinckrodt Inc. Oximeter sensor with digital memory encoding sensor expiration data
US6490466B1 (en) 2000-09-21 2002-12-03 Mallinckrodt Inc. Interconnect circuit between non-compatible oximeter and sensor
US6571113B1 (en) 2000-09-21 2003-05-27 Mallinckrodt, Inc. Oximeter sensor adapter with coding element
JP3845776B2 (en) 2000-09-22 2006-11-15 日本光電工業株式会社 Absorbent concentration measuring device in blood
US6505060B1 (en) 2000-09-29 2003-01-07 Datex-Ohmeda, Inc. Method and apparatus for determining pulse oximetry differential values
US6434408B1 (en) 2000-09-29 2002-08-13 Datex-Ohmeda, Inc. Pulse oximetry method and system with improved motion correction
IL138884A (en) 2000-10-05 2006-07-05 Conmed Corp Pulse oximeter and a method of its operation
US6819950B2 (en) 2000-10-06 2004-11-16 Alexander K. Mills Method for noninvasive continuous determination of physiologic characteristics
US6519484B1 (en) 2000-11-01 2003-02-11 Ge Medical Systems Information Technologies, Inc. Pulse oximetry sensor
US6466809B1 (en) 2000-11-02 2002-10-15 Datex-Ohmeda, Inc. Oximeter sensor having laminated housing with flat patient interface surface
US6505133B1 (en) 2000-11-15 2003-01-07 Datex-Ohmeda, Inc. Simultaneous signal attenuation measurements utilizing code division multiplexing
US6560470B1 (en) 2000-11-15 2003-05-06 Datex-Ohmeda, Inc. Electrical lockout photoplethysmographic measurement system
US6594512B2 (en) 2000-11-21 2003-07-15 Siemens Medical Solutions Usa, Inc. Method and apparatus for estimating a physiological parameter from a physiological signal
US6760610B2 (en) 2000-11-23 2004-07-06 Sentec Ag Sensor and method for measurement of physiological parameters
US20020068859A1 (en) 2000-12-01 2002-06-06 Knopp Christina A. Laser diode drive scheme for noise reduction in photoplethysmographic measurements
US6760607B2 (en) 2000-12-29 2004-07-06 Masimo Corporation Ribbon cable substrate pulse oximetry sensor
WO2002056760A1 (en) 2001-01-19 2002-07-25 Tufts University Method for measuring venous oxygen saturation
US6501974B2 (en) 2001-01-22 2002-12-31 Datex-Ohmeda, Inc. Compensation of human variability in pulse oximetry
US6510329B2 (en) 2001-01-24 2003-01-21 Datex-Ohmeda, Inc. Detection of sensor off conditions in a pulse oximeter
US6618602B2 (en) 2001-03-08 2003-09-09 Palco Labs, Inc. Method and apparatus for simultaneously determining a patient's identification and blood oxygen saturation
US20020133067A1 (en) 2001-03-15 2002-09-19 Jackson William H. New born and premature infant SIDS warning device
US6591122B2 (en) 2001-03-16 2003-07-08 Nellcor Puritan Bennett Incorporated Device and method for monitoring body fluid and electrolyte disorders
US6556852B1 (en) 2001-03-27 2003-04-29 I-Medik, Inc. Earpiece with sensors to measure/monitor multiple physiological variables
JP2002303576A (en) 2001-04-05 2002-10-18 Nippon Colin Co Ltd Oxygen saturation measuring device
AU2002252717A1 (en) 2001-04-19 2002-11-05 Sean T. O'mara Pulse oximetry device and method
KR100612827B1 (en) 2001-04-19 2006-08-14 삼성전자주식회사 Method and apparatus for noninvasively measuring hemoglobin concentration and oxygen saturation
US6505061B2 (en) 2001-04-20 2003-01-07 Datex-Ohmeda, Inc. Pulse oximetry sensor with improved appendage cushion
US20020156354A1 (en) 2001-04-20 2002-10-24 Larson Eric Russell Pulse oximetry sensor with improved spring
ATE348566T1 (en) 2001-05-03 2007-01-15 Instrumentarium Corp PULSE OXIMETER
WO2002089664A2 (en) 2001-05-03 2002-11-14 Masimo Corporation Flex circuit shielded optical sensor and method of fabricating the same
DE60221841T2 (en) 2001-06-20 2008-05-15 Purdue Research Foundation, West Lafayette PRESSURE CUFF WITH BODY LIGHTING FOR USE IN THE OPTICAL NON-INVASIVE MEASUREMENT OF BLOOD PARAMETERS
US6801802B2 (en) 2001-06-29 2004-10-05 Ge Medical Systems Information Technologies, Inc. System and method for selecting physiological data from a plurality of physiological data sources
US6850787B2 (en) 2001-06-29 2005-02-01 Masimo Laboratories, Inc. Signal component processor
US6697658B2 (en) 2001-07-02 2004-02-24 Masimo Corporation Low power pulse oximeter
US6731967B1 (en) 2001-07-16 2004-05-04 Pacesetter, Inc. Methods and devices for vascular plethysmography via modulation of source intensity
US6754516B2 (en) 2001-07-19 2004-06-22 Nellcor Puritan Bennett Incorporated Nuisance alarm reductions in a physiological monitor
DE10136355A1 (en) 2001-07-26 2003-02-13 Niels Rahe-Meyer Device for monitoring vital parameters of an animal or human body consists of a portable bag with sensors, analysis electronics and visual and audible output means as well as interfaces for connection to other devices
US6802812B1 (en) 2001-07-27 2004-10-12 Nostix Llc Noninvasive optical sensor for measuring near infrared light absorbing analytes
USD455834S1 (en) 2001-08-29 2002-04-16 Bci, Inc. Finger oximeter
US6654621B2 (en) 2001-08-29 2003-11-25 Bci, Inc. Finger oximeter with finger grip suspension system
US6668183B2 (en) 2001-09-11 2003-12-23 Datex-Ohmeda, Inc. Diode detection circuit
IL145445A (en) 2001-09-13 2006-12-31 Conmed Corp Signal processing method and device for signal-to-noise improvement
US6671532B1 (en) 2001-09-17 2003-12-30 Respironics Novametrix, Inc. Pulse oximetry sensor and dispensing method
GB0123395D0 (en) 2001-09-28 2001-11-21 Isis Innovation Locating features ina photoplethysmograph signal
US6697655B2 (en) 2001-10-05 2004-02-24 Mortara Instrument, Inc. Low power pulse oximeter
US6564077B2 (en) 2001-10-10 2003-05-13 Mortara Instrument, Inc. Method and apparatus for pulse oximetry
US6697653B2 (en) 2001-10-10 2004-02-24 Datex-Ohmeda, Inc. Reduced wire count voltage drop sense
US20030073890A1 (en) 2001-10-10 2003-04-17 Hanna D. Alan Plethysmographic signal processing method and system
US6773397B2 (en) 2001-10-11 2004-08-10 Draeger Medical Systems, Inc. System for processing signal data representing physiological parameters
US20030073889A1 (en) 2001-10-11 2003-04-17 Keilbach Kevin A. Monitoring led wavelength shift in photoplethysmography
US6840904B2 (en) 2001-10-11 2005-01-11 Jason Goldberg Medical monitoring device and system
US6748254B2 (en) 2001-10-12 2004-06-08 Nellcor Puritan Bennett Incorporated Stacked adhesive optical sensor
WO2003034911A2 (en) 2001-10-22 2003-05-01 Vsm Medtech Ltd. Physiological parameter monitoring system and sensor assembly for same
US6701170B2 (en) 2001-11-02 2004-03-02 Nellcor Puritan Bennett Incorporated Blind source separation of pulse oximetry signals
US6839579B1 (en) 2001-11-02 2005-01-04 Nellcor Puritan Bennett Incorporated Temperature indicating oximetry sensor
JP4174648B2 (en) 2001-11-12 2008-11-05 ロート製薬株式会社 Aqueous composition
JP3709836B2 (en) 2001-11-20 2005-10-26 コニカミノルタセンシング株式会社 Blood component measuring device
US20030100840A1 (en) 2001-11-28 2003-05-29 Nihon Kohden Corporation Pulse photometry probe
US6839580B2 (en) 2001-12-06 2005-01-04 Ric Investments, Inc. Adaptive calibration for pulse oximetry
US6780158B2 (en) 2001-12-14 2004-08-24 Nihon Kohden Corporation Signal processing method and pulse wave signal processing method
US6934570B2 (en) 2002-01-08 2005-08-23 Masimo Corporation Physiological sensor combination
US6668182B2 (en) 2002-01-10 2003-12-23 Northeast Monitoring Pulse oxymetry data processing
US6822564B2 (en) 2002-01-24 2004-11-23 Masimo Corporation Parallel measurement alarm processor
US7020507B2 (en) 2002-01-31 2006-03-28 Dolphin Medical, Inc. Separating motion from cardiac signals using second order derivative of the photo-plethysmogram and fast fourier transforms
EP1469773B1 (en) 2002-01-31 2007-08-15 Loughborough University Enterprises Limited Venous pulse oximetry
US6882874B2 (en) 2002-02-15 2005-04-19 Datex-Ohmeda, Inc. Compensation of human variability in pulse oximetry
WO2003071941A1 (en) 2002-02-22 2003-09-04 Datex-Ohmeda, Inc. Cepstral domain pulse oximetry
US6709402B2 (en) 2002-02-22 2004-03-23 Datex-Ohmeda, Inc. Apparatus and method for monitoring respiration with a pulse oximeter
US6805673B2 (en) 2002-02-22 2004-10-19 Datex-Ohmeda, Inc. Monitoring mayer wave effects based on a photoplethysmographic signal
US20040039273A1 (en) 2002-02-22 2004-02-26 Terry Alvin Mark Cepstral domain pulse oximetry
US6702752B2 (en) 2002-02-22 2004-03-09 Datex-Ohmeda, Inc. Monitoring respiration based on plethysmographic heart rate signal
US6851639B2 (en) * 2002-03-05 2005-02-08 Matsushita Electric Industrial Co., Ltd. Tape medium running device
US20030171662A1 (en) 2002-03-07 2003-09-11 O'connor Michael William Non-adhesive flexible electro-optical sensor for fingertip trans-illumination
US6863652B2 (en) 2002-03-13 2005-03-08 Draeger Medical Systems, Inc. Power conserving adaptive control system for generating signal in portable medical devices
KR100455289B1 (en) 2002-03-16 2004-11-08 삼성전자주식회사 Method of diagnosing using a ray and apparatus thereof
EP1489963A4 (en) 2002-03-21 2008-12-10 Datex Ohmeda Inc Neonatal bootie wrap
US6647279B2 (en) 2002-03-22 2003-11-11 Jonas Alexander Pologe Hybrid optical delivery system for photoplethysmography
US6850788B2 (en) 2002-03-25 2005-02-01 Masimo Corporation Physiological measurement communications adapter
US7892183B2 (en) 2002-04-19 2011-02-22 Pelikan Technologies, Inc. Method and apparatus for body fluid sampling and analyte sensing
US20030212316A1 (en) 2002-05-10 2003-11-13 Leiden Jeffrey M. Method and apparatus for determining blood parameters and vital signs of a patient
US6711425B1 (en) 2002-05-28 2004-03-23 Ob Scientific, Inc. Pulse oximeter with calibration stabilization
US8996090B2 (en) 2002-06-03 2015-03-31 Exostat Medical, Inc. Noninvasive detection of a physiologic parameter within a body tissue of a patient
US7024235B2 (en) 2002-06-20 2006-04-04 University Of Florida Research Foundation, Inc. Specially configured nasal pulse oximeter/photoplethysmography probes, and combined nasal probe/cannula, selectively with sampler for capnography, and covering sleeves for same
US6909912B2 (en) 2002-06-20 2005-06-21 University Of Florida Non-invasive perfusion monitor and system, specially configured oximeter probes, methods of using same, and covers for probes
US6865407B2 (en) 2002-07-11 2005-03-08 Optical Sensors, Inc. Calibration technique for non-invasive medical devices
WO2004010844A2 (en) 2002-07-26 2004-02-05 Cas Medical Systems, Inc. Method for spectrophotometric blood oxygenation monitoring
US6850789B2 (en) 2002-07-29 2005-02-01 Welch Allyn, Inc. Combination SPO2/temperature measuring apparatus
US7096054B2 (en) 2002-08-01 2006-08-22 Masimo Corporation Low noise optical housing
KR100493157B1 (en) 2002-08-02 2005-06-03 삼성전자주식회사 Probe using in measuring organism signal and system for measuring organism signal comprising the same
US7133711B2 (en) 2002-08-07 2006-11-07 Orsense, Ltd. Method and system for decomposition of multiple channel signals
US6707257B2 (en) 2002-08-08 2004-03-16 Datex-Ohmeda, Inc. Ferrite stabilized LED drive
US6720734B2 (en) 2002-08-08 2004-04-13 Datex-Ohmeda, Inc. Oximeter with nulled op-amp current feedback
US6825619B2 (en) 2002-08-08 2004-11-30 Datex-Ohmeda, Inc. Feedback-controlled LED switching
US6879850B2 (en) 2002-08-16 2005-04-12 Optical Sensors Incorporated Pulse oximeter with motion detection
US6763256B2 (en) 2002-08-16 2004-07-13 Optical Sensors, Inc. Pulse oximeter
US6745061B1 (en) * 2002-08-21 2004-06-01 Datex-Ohmeda, Inc. Disposable oximetry sensor
US6643531B1 (en) 2002-08-22 2003-11-04 Bci, Inc. Combination fingerprint and oximetry device
US6912413B2 (en) 2002-09-13 2005-06-28 Ge Healthcare Finland Oy Pulse oximeter
US7341559B2 (en) 2002-09-14 2008-03-11 Masimo Corporation Pulse oximetry ear sensor
US7142901B2 (en) 2002-09-25 2006-11-28 Masimo Corporation Parameter compensated physiological monitor
US20040186358A1 (en) 2002-09-25 2004-09-23 Bart Chernow Monitoring system containing a hospital bed with integrated display
ATE479343T1 (en) 2002-10-01 2010-09-15 Nellcor Puritan Bennett Inc USE OF A HEADBAND FOR VOLTAGE DISPLAY AND SYSTEM OF OXYMETER AND HEADBAND
US7096052B2 (en) 2002-10-04 2006-08-22 Masimo Corporation Optical probe including predetermined emission wavelength based on patient type
JP4352315B2 (en) 2002-10-31 2009-10-28 日本光電工業株式会社 Signal processing method / apparatus and pulse photometer using the same
US6731962B1 (en) 2002-10-31 2004-05-04 Smiths Medical Pm Inc Finger oximeter with remote telecommunications capabilities and system therefor
WO2004047631A2 (en) 2002-11-22 2004-06-10 Masimo Laboratories, Inc. Blood parameter measurement system
JP4489385B2 (en) 2002-12-12 2010-06-23 株式会社日立メディコ Measuring probe and biological light measuring device
AU2003297060A1 (en) 2002-12-13 2004-07-09 Massachusetts Institute Of Technology Vibratory venous and arterial oximetry sensor
US6754515B1 (en) 2002-12-17 2004-06-22 Kestrel Labs, Inc. Stabilization of noisy optical sources in photoplethysmography
KR100499139B1 (en) 2003-01-07 2005-07-04 삼성전자주식회사 Method of removing abnormal data and blood constituent analysing system using spectroscopy employing the same
US7006856B2 (en) 2003-01-10 2006-02-28 Nellcor Puritan Bennett Incorporated Signal quality metrics design for qualifying data for a physiological monitor
US7016715B2 (en) 2003-01-13 2006-03-21 Nellcorpuritan Bennett Incorporated Selection of preset filter parameters based on signal quality
US7225006B2 (en) 2003-01-23 2007-05-29 Masimo Corporation Attachment and optical probe
US6920345B2 (en) 2003-01-24 2005-07-19 Masimo Corporation Optical sensor including disposable and reusable elements
EP1592340B1 (en) 2003-02-05 2010-07-28 Philips Intellectual Property & Standards GmbH Finger medical sensor
US6968221B2 (en) 2003-03-14 2005-11-22 Futrex, Inc. Low-cost method and apparatus for non-invasively measuring blood glucose levels
US6993372B2 (en) 2003-06-03 2006-01-31 Orsense Ltd. Method and system for use in non-invasive optical measurements of blood parameters
US6992772B2 (en) 2003-06-19 2006-01-31 Optix Lp Method and apparatus for optical sampling to reduce interfering variances
US6954664B2 (en) 2003-06-20 2005-10-11 Smiths Medical Pm, Inc. Oximetry simulator
US7047056B2 (en) 2003-06-25 2006-05-16 Nellcor Puritan Bennett Incorporated Hat-based oximeter sensor
US7025728B2 (en) 2003-06-30 2006-04-11 Nihon Kohden Corporation Method for reducing noise, and pulse photometer using the method
US7003338B2 (en) 2003-07-08 2006-02-21 Masimo Corporation Method and apparatus for reducing coupling between signals
DE10334542A1 (en) 2003-07-29 2005-02-17 Pav Patentverwertung Kg Brewing device with elastic element for holding down the coffee pad
US7263396B2 (en) 2003-08-08 2007-08-28 Cardiodigital Limited Ear sensor assembly
US7107088B2 (en) 2003-08-25 2006-09-12 Sarnoff Corporation Pulse oximetry methods and apparatus for use within an auditory canal
US6931269B2 (en) 2003-08-27 2005-08-16 Datex-Ohmeda, Inc. Multi-domain motion estimation and plethysmographic recognition using fuzzy neural-nets
US20050049468A1 (en) 2003-09-03 2005-03-03 Sven-Erik Carlson Increasing the performance of an optical pulsoximeter
US7328052B2 (en) 2003-09-19 2008-02-05 Nir Diagnostics Inc. Near infrared risk assessment of diseases
US20050075550A1 (en) 2003-10-03 2005-04-07 Lindekugel Eric W. Quick-clip sensor holder
US7254434B2 (en) 2003-10-14 2007-08-07 Masimo Corporation Variable pressure reusable sensor
TWI250867B (en) 2003-10-22 2006-03-11 Surewin Technology Corp Pulse wave analysis device
DE20318882U1 (en) 2003-12-03 2004-03-11 Drewes, Susanne Pulse-oximetry sensor suitable for new-born includes flexible, conformed, hygienic material embedding circuitry for disinfection and reuse
US7305262B2 (en) 2003-12-11 2007-12-04 Ge Medical Systems Information Technologies, Inc. Apparatus and method for acquiring oximetry and electrocardiogram signals
EP2839777B1 (en) 2003-12-30 2015-12-23 University of Florida Research Foundation, Inc. Novel specially configured nasal pulse oximeter
US7280858B2 (en) 2004-01-05 2007-10-09 Masimo Corporation Pulse oximetry sensor
US7162288B2 (en) 2004-02-25 2007-01-09 Nellcor Purtain Bennett Incorporated Techniques for detecting heart pulses and reducing power consumption in sensors
US20050197548A1 (en) 2004-03-05 2005-09-08 Elekon Industries Usa, Inc. Disposable/reusable flexible sensor
US20050234317A1 (en) 2004-03-19 2005-10-20 Kiani Massi E Low power and personal pulse oximetry systems
JP4191642B2 (en) 2004-04-02 2008-12-03 三菱電機株式会社 Transflective liquid crystal display device and manufacturing method thereof
US20050228248A1 (en) 2004-04-07 2005-10-13 Thomas Dietiker Clip-type sensor having integrated biasing and cushioning means
US7263393B2 (en) 2004-06-07 2007-08-28 Healing Rhythms, Llc. Biofeedback ring sensors
US7683759B2 (en) 2004-10-06 2010-03-23 Martis Ip Holdings, Llc Patient identification system
US20060084878A1 (en) 2004-10-18 2006-04-20 Triage Wireless, Inc. Personal computer-based vital signs monitor
US7679519B2 (en) 2004-11-05 2010-03-16 Envitec-Wismar Gmbh Apparatus for improved pulse oximetry measurement
US7359742B2 (en) 2004-11-12 2008-04-15 Nonin Medical, Inc. Sensor assembly
US7658716B2 (en) 2004-12-07 2010-02-09 Triage Wireless, Inc. Vital signs monitor using an optical ear-based module
WO2006064399A2 (en) 2004-12-14 2006-06-22 Koninklijke Philips Electronics, N.V. Integrated pulse oximetry sensor
US7412272B2 (en) 2005-01-13 2008-08-12 Datex-Ohmeda, Inc. Finger sleeve sensor holder
WO2006079043A2 (en) * 2005-01-21 2006-07-27 Medrad, Inc. Pulse oximetry grip sensor and method of making same
JP2006204742A (en) 2005-01-31 2006-08-10 Konica Minolta Sensing Inc Method and system for evaluating sleep, its operation program, pulse oxymeter, and system for supporting sleep
US20070078311A1 (en) * 2005-03-01 2007-04-05 Ammar Al-Ali Disposable multiple wavelength optical sensor
US20060200029A1 (en) 2005-03-04 2006-09-07 Medwave, Inc. Universal transportable vital signs monitor
KR100716824B1 (en) 2005-04-28 2007-05-09 삼성전기주식회사 Printed circuit board with embedded capacitors using hybrid materials, and manufacturing process thereof
JP4721130B2 (en) * 2005-07-29 2011-07-13 日本光電工業株式会社 Pulse oximeter probe
JP3116255U (en) 2005-08-30 2005-12-02 モリト株式会社 Eggplant ring and key holder using the same
JP3116260U (en) 2005-08-30 2005-12-02 マーテック株式会社 Swivel hanger
US20070197887A1 (en) 2006-02-17 2007-08-23 Medwave, Inc. Noninvasive vital signs sensor
JP3134144U (en) 2006-11-13 2007-08-09 ▲寛▼重 小林 Article-mounted lid and Western-style toilet equipped with article-mounted lid
US9486111B2 (en) 2013-06-09 2016-11-08 Regalo International, Llc Bath safety rail

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JP2009504257A (en) 2009-02-05
TW200718392A (en) 2007-05-16
US7684843B2 (en) 2010-03-23
WO2007019474A2 (en) 2007-02-15
US20070032707A1 (en) 2007-02-08
WO2007019474A3 (en) 2007-05-24
EP1921979A2 (en) 2008-05-21
US20070032711A1 (en) 2007-02-08
CN101257839A (en) 2008-09-03

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