WO2002047742A2 - Temperature sensor adapter for foley catheters - Google Patents

Temperature sensor adapter for foley catheters Download PDF

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Publication number
WO2002047742A2
WO2002047742A2 PCT/US2001/046776 US0146776W WO0247742A2 WO 2002047742 A2 WO2002047742 A2 WO 2002047742A2 US 0146776 W US0146776 W US 0146776W WO 0247742 A2 WO0247742 A2 WO 0247742A2
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WO
WIPO (PCT)
Prior art keywords
adapter
temperature sensor
cap
seal
wire
Prior art date
Application number
PCT/US2001/046776
Other languages
French (fr)
Other versions
WO2002047742A3 (en
Inventor
Wayne Noda
Original Assignee
Alsius Corporation
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 Alsius Corporation filed Critical Alsius Corporation
Priority to AU2002232502A priority Critical patent/AU2002232502A1/en
Publication of WO2002047742A2 publication Critical patent/WO2002047742A2/en
Publication of WO2002047742A3 publication Critical patent/WO2002047742A3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00084—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00115—Electrical control of surgical instruments with audible or visual output
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00115—Electrical control of surgical instruments with audible or visual output
    • A61B2017/00119—Electrical control of surgical instruments with audible or visual output alarm; indicating an abnormal situation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22065—Functions of balloons
    • A61B2017/22068—Centering

Definitions

  • This invention relates to Foley Catheters, and particularly Foley Catheters having temperature sensors.
  • Foley catheters typically include a soft, thin rubber tube with a balloon on one end. The catheter is threaded through the urinary duct (urethra) and into the bladder to drain urine from the bladder.
  • a Foley catheter is typically used when normal urination is disrupted by an infection, a swollen prostate gland, bladder stones, or, sometimes, an injury. In very sick people, a catheter may be used to keep track of urine production.
  • a typical Foley catheter has drainage lumen, and an inflation lumen for inflating and deflating the balloon.
  • the balloon is normally deflated until properly positioned in a patient's bladder. Once the catheter is properly positioned, the inflation lumen delivers fluid to inflate the balloon. The inflated balloon holds the catheter in place.
  • the bladder is an accepted situs for core body temperature measurements. Accordingly, some Foley catheters include a temperature sensor included on the end of the catheter. A wire connects the sensor, via the catheter, to externally located monitoring devices.
  • Foley catheters with a temperature sensor may fail. When the sensor fails, the failed catheter may have to be replaced. This not only compounds patient discomfort, but also increases the risk of injury and infection for the patient. What is desired is a way to measure a patient's core body temperature while minimizing patient discomfort and risk of injury. What is also desired is a way of assuring redundancy and accuracy in core body temperature measurements.
  • the adapter of the present invention attaches to the drainage lumen of a standard Foley catheters, including Foley catheters having integrated temperature sensors.
  • the adapter is generally "Y" shaped, having a drainage lumen in communication with the catheter drainage lumen, and a temperature sensor lumen with a temperature sensor.
  • the adapter has a threaded fitting fixed on the adapter temperature sensor lumen for sealing the temperature sensor lumen and for anchoring the temperature sensor.
  • the adapter has a threaded cap and a seal. The seal seats in the adapter and the threads of the cap join with the threads of the fitting to actuate the seal.
  • the temperature sensor includes a sensor element disposed distally on the temperature sensor, and a wire.
  • the wire extends from the sensor element through the fitting.
  • the cap compresses the seal against the fitting when the cap attaches to the adapter. Accordingly, the fitting prevents leakage and anchors the temperature sensor wire with respect to the adapter.
  • FIG. 1 is a perspective view of a Foley catheter and the adapter in accordance with the present invention.
  • FIG. 2 is a perspective view of a Foley catheter inserted into a patient and the adapter in accordance with the present invention.
  • FIG. 3 is a cross-sectional view of the catheter body as seen along the line 3-3 in FIG.2.
  • FIG. 4 is an exploded cross-sectional view of the cap and fitting in accordance with the present invention.
  • FIG. 5 is a cross-sectional view of the cap operatively engaged with the fitting as seen along the line 4-4 of FIG. 2.
  • FIG. 1 shows a Foley catheter generally designated with the reference numeral 10.
  • the catheter 10 includes a catheter body 12 with a proximal end 14 and a distal end 16.
  • the catheter 10 also includes a balloon 18, an inflation lumen 20, a drainage lumen 22, and an adapter 24.
  • the balloon 18 is deflated for insertion into a patient.
  • the balloon 18 is disposed near the distal end 16.
  • the inflation lumen 20 extends within the catheter body 12 from the proximal end 14 to the balloon 18, in fluid communication with the balloon 18, for inflating and deflating the balloon 18.
  • the catheter drainage lumen 22 extends from the proximal end 14 to the distal end 16.
  • the distal end 16 includes an opening 26 in fluid communication with the drainage lumen 22 to facilitate drainage of urine from the bladder of a patient.
  • the adapter 24 has a drainage lumen 30, a temperature sensor lumen 32 and a connector 25.
  • the connector 25 attaches to the proximal end 14 ofthe catheter body 12.
  • the connector 25 establishes fluid communication between the adapter drainage lumen 30 and the catheter drainage lumen 22.
  • the connector 25 is tapered and includes ribs 27 for insertion and press-fit into the proximal end 14 ofthe catheter body 12.
  • the adapter temperature sensor lumen 32 includes a fitting 34 and a cap 36.
  • the temperature sensor 38 has a wire 40 and a distally located sensor element 33 (FIG. 2).
  • the fitting 34 is fixed on the temperature sensor lumen 32 ofthe adapter 24. Preferably the fitting 34 bonds to the temperature sensor lumen 32.
  • the fitting 34 receives the cap 36.
  • the cap 36 and a portion ofthe fitting 34 are threaded to enable the cap 36 to rotate onto the fitting 34.
  • the cap 36 is rotatable to adjustably torque the cap 36 onto the fitting 34.
  • the temperature sensor wire 40 normally slides through the cap 36, the fitting 34, the connector 25, and the catheter drainage lumen 22.
  • the temperature sensor 38 includes a distally mounted temperature sensor element 33 (FIG. 2) that seats in the distal end 16 ofthe catheter body 12. Rotating the cap 36 with respect to the fitting 34 selectively anchors the wire 40 with respect to the adapter 24 to prevent movement ofthe sensor element 33.
  • FIG. 2 shows the Foley catheter 10 inserted into the bladder 42 of a patient.
  • the Foley catheter 10 includes an integrated temperature sensor 46 with an integrated sensor element 35 disposed at the distal end 16 ofthe catheter body 12.
  • the catheter 10 is introduced into the bladder 42 of a patient.
  • the balloon 18 inflates to hold the catheter 10 in the bladder 42.
  • Urine drains from the bladder 42 through the opening 26 and via the catheter drainage lumen 22.
  • the integrated sensor 46 with the sensor element 35 senses the patient's bladder temperature.
  • the adapter 24 attaches to the proximal end 14 of the catheter body 12. An operator manually advances the temperature sensor wire 40 to slide the temperature sensor wire 40 and sensor element 33 via the drainage lumen, towards the distal end 16 ofthe catheter body 12. Preferably, the temperature sensor wire 40 slides the temperature sensor element 33 fully to the distal end 16 ofthe catheter body 12.
  • the integrated temperature sensor 46 fails. This failure is detected.
  • the Foley catheter 10 remains in the bladder 42.
  • the adapter 24 of the present invention then attaches to the proximal end 14 ofthe catheter and the sensor 38 with the sensor element 33 advances through the drainage lumen ofthe Foley catheter 10 to position the sensor element 33 in the distal end 16 ofthe catheter body 12.
  • the sensor element 35 and the sensor element 33 are collocated for redundancy and improved accuracy.
  • the sensor elements 33 and 35 provide a primary and secondary measure, respectively, of core body temperature.
  • the secondary measure of temperature is used in conjunction with primary temperature measurements for improved temperature sensing accuracy and reliability.
  • Collocated temperature sensor elements 33 and 35 are also useful for communicating with discrete monitoring and data compilation devices requiring temperature input, such as a discrete patient data recorder and a medical device, for examples.
  • sensor collocation may not be required in some systems.
  • an intravascular temperature regulator is used on the patient, it may be desirable to have multiple temperature sensors in various parts of the body (including the bladder) to optimally determine the patient core body temperature and communicate that body temperature to the intravascular temperature regulator.
  • the temperature adapter 24 and Foley catheter 10 are used in conjunction with vascular heat exchange catheter such as disclosed in copending US Patent Application No. 09/220,897, the disclosure of which is incorporated herein by reference.
  • core body temperature measurements are important to facilitate proper functioning of any system that regulates the core body temperature of a patient. Accordingly, redundant bladder temperature measurements with collocated sensor elements 33 and 35, is desirable to minimize any risk or inconvenience associated with temperature monitoring failure.
  • Foley catheters can be used to drain urine for several weeks.
  • An integrated temperature sensor 46 may fail during this period.
  • the method thus, enables an introduced Foley catheter having a failed integrated temperature sensor 46 to be used continuously for draining urine notwithstanding failure of the integrated temperature sensor 46.
  • the steps of maintaining the catheter 10 in the bladder 42 and attaching the adapter 24 to the proximal end 14 and advancing the adapter temperature sensor 38 provides a secondary measure of temperature without requiring the unpleasant steps of removal and replacement ofthe Foley catheter 10.
  • FIG. 3 shows the catheter body 12 having three lumens, the inflation lumen 20, the drainage lumen 22, and an integrated temperature sensor lumen 48.
  • the temperature sensor lumen 48 houses the wire 46 ofthe integrated temperature sensor 46.
  • the wire 40 ofthe adapter temperature sensor 38 is positioned freely in the drainage lumen 22.
  • FIG. 4 shows the cap 36, the fitting 34 and a seal 56.
  • the cap 36 has internal threads 50 and the fitting 34 has external threads 52.
  • the cap 36 has an axis and includes an axially disposed post 54.
  • the seal 56 seats within the fitting 34.
  • the post 54 defines a portion of a channel 58.
  • the channel 58 extends axially through the cap 36, the fitting 34 and the seal 56.
  • the temperature sensor wire 40 normally slides through the channel 58 when the cap 36 and the fitting 34 loosely engage, or disengage.
  • the seal 56 is generally cylindrical in shape and circumscribes the wire 40.
  • the wire 40 is lubricated to facilitate sliding when the cap 36 loosely fits on the fitting 34.
  • the fitting 34 defines an annular flange 62 so that when the cap 36 threads on to the fitting 34, the post 54 ofthe cap 36 presses the seal 56 against the annular flange 62. Rotation of the cap 36 with respect to the fitting 34 deforms the seal 56, which grips the wire 40 and thereby selectively anchors the wire 40 with respect to the cap 36 and the fitting 34.
  • FIG. 5 shows the cap 36 engaging the fitting 34.
  • the cap 36 rotates to compress the seal 56 against the flange 62.
  • the seal 56 circumscribes the wire 40 so that compressing the seal 56 anchors the wire 40.
  • a typical patient temperature regulation system includes an venous catheter having a heating and/or cooling element.
  • the catheter inserts into a patient's central venous system to warm and/or cool the blood.
  • the warmed/cooled blood circulates within the patient to effect the patient core body temperature.
  • the core body temperature is measured using a Foley catheter and adaptor as described herein.
  • a heat exchange catheter is described in US Patent Nos. 6,146,411 and 6,126,684, the disclosures of which are incorporated herein by reference.
  • One heat exchange catheter includes lumens for circulating heat exchange fluid within the catheter. This creates a closed system heat exchanger so that circulation of heat exchange fluid within the catheter cools/warms the blood of the patient.
  • a system employing the heat exchange catheter has a temperature measurement device and a control unit. The control unit regulates the rate of flow ofthe heat exchange fluid as well as the temperature ofthe fluid.
  • a feedback loop established between the Foley catheter- based temperature sensor elements ofthe present invention is used to regulate the heat exchange fluid temperature ofthe closed system, and the rate of heat exchange fluid flow.
  • the present invention is anticipated to be used in conjunction with a patient temperature regulation system, it can be appreciated that it can be used in any of a number of systems.
  • the present invention can be used in virtually any surgical procedure requiring a measurement of a patient's core body temperature.
  • the seal 56 may take many forms, including that of an o- ring. Notwithstanding the form ofthe seal 56, the relative movement ofthe cap with respect to the seal 56 deforms the seal 56 to anchor the wire 40.
  • the seal 56 need not simply seat in the fitting 34, the seal may also be formed as part ofthe fitting 34, or the cap 36.
  • the fitting 34 may be discrete, or integrated with the temperature sensor lumen 32 ofthe adapter 24. Accordingly, the present invention should be limited only by the claims as set forth below.

Abstract

An adapter (24) for advancing a temperature sensor (38) through the drainage lumen (22) of an operational Foley catheter (10). The Foley catheter (10) includes a catheter body (12) having proximal end (14), a distal end (16) and a drainage lumen (22) extending between the ends. A balloon (18) mounts on the distal end (16) for holding the catheter (10) in the bladder (42) of a patient. The adapter (24) attaches to the proximal end (14) for inserting a temperature sensor (38) via the catheter drainage lumen (22) to the distal end (16) of the catheter (10). This adapter (24) enables a typical Foley catheter (10) to achieve a temperature sensing capability and provides collocated sensor elements (33, 35) in Foley catheters having a single temperature sensor element (35). Such temperature sensor measurements are useful, for example, in conjunction with various heat exchange catheter systems.

Description

TEMPERATURE SENSOR ADAPTER FOR FOLEY CATHETERS
FIELD:
This invention relates to Foley Catheters, and particularly Foley Catheters having temperature sensors.
INCORPORATION BY REFERENCE:
The disclosures of US Patent No. 6,019,783, issued February 1, 2000, US Patent No. 6,126,684, issued October 3, 2000, and US Patent No.6,146,411, issued November 14, 2000, are incorporated herein by reference.
BACKGROUND:
Foley catheters typically include a soft, thin rubber tube with a balloon on one end. The catheter is threaded through the urinary duct (urethra) and into the bladder to drain urine from the bladder. A Foley catheter is typically used when normal urination is disrupted by an infection, a swollen prostate gland, bladder stones, or, sometimes, an injury. In very sick people, a catheter may be used to keep track of urine production.
A typical Foley catheter has drainage lumen, and an inflation lumen for inflating and deflating the balloon. The balloon is normally deflated until properly positioned in a patient's bladder. Once the catheter is properly positioned, the inflation lumen delivers fluid to inflate the balloon. The inflated balloon holds the catheter in place.
There are risks associated with the use of a Foley catheter. For example, the bladder or urethra could be injured when the Foley catheter is inserted. Infection is also possible. Patients may find the process of insertion of a Foley catheter unpleasant and sometimes painful.
The bladder is an accepted situs for core body temperature measurements. Accordingly, some Foley catheters include a temperature sensor included on the end of the catheter. A wire connects the sensor, via the catheter, to externally located monitoring devices.
One drawback to Foley catheters with a temperature sensor is that the sensor may fail. When the sensor fails, the failed catheter may have to be replaced. This not only compounds patient discomfort, but also increases the risk of injury and infection for the patient. What is desired is a way to measure a patient's core body temperature while minimizing patient discomfort and risk of injury. What is also desired is a way of assuring redundancy and accuracy in core body temperature measurements.
SUMMARY:
The adapter of the present invention attaches to the drainage lumen of a standard Foley catheters, including Foley catheters having integrated temperature sensors. The adapter is generally "Y" shaped, having a drainage lumen in communication with the catheter drainage lumen, and a temperature sensor lumen with a temperature sensor.
The adapter has a threaded fitting fixed on the adapter temperature sensor lumen for sealing the temperature sensor lumen and for anchoring the temperature sensor. The adapter has a threaded cap and a seal. The seal seats in the adapter and the threads of the cap join with the threads of the fitting to actuate the seal.
The temperature sensor includes a sensor element disposed distally on the temperature sensor, and a wire. The wire extends from the sensor element through the fitting.
The cap compresses the seal against the fitting when the cap attaches to the adapter. Accordingly, the fitting prevents leakage and anchors the temperature sensor wire with respect to the adapter.
BRIEF DESCRIPTION OF THE DRAWINGS:
FIG. 1 is a perspective view of a Foley catheter and the adapter in accordance with the present invention.
FIG. 2 is a perspective view of a Foley catheter inserted into a patient and the adapter in accordance with the present invention.
FIG. 3 is a cross-sectional view of the catheter body as seen along the line 3-3 in FIG.2.
FIG. 4 is an exploded cross-sectional view of the cap and fitting in accordance with the present invention. FIG. 5 is a cross-sectional view of the cap operatively engaged with the fitting as seen along the line 4-4 of FIG. 2.
DESCRIPTION:
FIG. 1 shows a Foley catheter generally designated with the reference numeral 10. The catheter 10 includes a catheter body 12 with a proximal end 14 and a distal end 16. The catheter 10 also includes a balloon 18, an inflation lumen 20, a drainage lumen 22, and an adapter 24.
The balloon 18 is deflated for insertion into a patient. The balloon 18 is disposed near the distal end 16. The inflation lumen 20 extends within the catheter body 12 from the proximal end 14 to the balloon 18, in fluid communication with the balloon 18, for inflating and deflating the balloon 18.
The catheter drainage lumen 22 extends from the proximal end 14 to the distal end 16. The distal end 16 includes an opening 26 in fluid communication with the drainage lumen 22 to facilitate drainage of urine from the bladder of a patient.
The adapter 24 has a drainage lumen 30, a temperature sensor lumen 32 and a connector 25. The connector 25 attaches to the proximal end 14 ofthe catheter body 12. The connector 25 establishes fluid communication between the adapter drainage lumen 30 and the catheter drainage lumen 22. Preferably the connector 25 is tapered and includes ribs 27 for insertion and press-fit into the proximal end 14 ofthe catheter body 12.
The adapter temperature sensor lumen 32 includes a fitting 34 and a cap 36. The temperature sensor 38 has a wire 40 and a distally located sensor element 33 (FIG. 2). The fitting 34 is fixed on the temperature sensor lumen 32 ofthe adapter 24. Preferably the fitting 34 bonds to the temperature sensor lumen 32. The fitting 34 receives the cap 36. The cap 36 and a portion ofthe fitting 34 are threaded to enable the cap 36 to rotate onto the fitting 34. The cap 36 is rotatable to adjustably torque the cap 36 onto the fitting 34.
The temperature sensor wire 40 normally slides through the cap 36, the fitting 34, the connector 25, and the catheter drainage lumen 22. The temperature sensor 38 includes a distally mounted temperature sensor element 33 (FIG. 2) that seats in the distal end 16 ofthe catheter body 12. Rotating the cap 36 with respect to the fitting 34 selectively anchors the wire 40 with respect to the adapter 24 to prevent movement ofthe sensor element 33. FIG. 2 shows the Foley catheter 10 inserted into the bladder 42 of a patient. The Foley catheter 10 includes an integrated temperature sensor 46 with an integrated sensor element 35 disposed at the distal end 16 ofthe catheter body 12.
During normal operation ofthe Foley catheter 10, the catheter 10 is introduced into the bladder 42 of a patient. The balloon 18 inflates to hold the catheter 10 in the bladder 42. Urine drains from the bladder 42 through the opening 26 and via the catheter drainage lumen 22. The integrated sensor 46 with the sensor element 35 senses the patient's bladder temperature.
The adapter 24 attaches to the proximal end 14 of the catheter body 12. An operator manually advances the temperature sensor wire 40 to slide the temperature sensor wire 40 and sensor element 33 via the drainage lumen, towards the distal end 16 ofthe catheter body 12. Preferably, the temperature sensor wire 40 slides the temperature sensor element 33 fully to the distal end 16 ofthe catheter body 12.
According to one method of using the invention, the integrated temperature sensor 46 fails. This failure is detected. The Foley catheter 10 remains in the bladder 42. The adapter 24 of the present invention then attaches to the proximal end 14 ofthe catheter and the sensor 38 with the sensor element 33 advances through the drainage lumen ofthe Foley catheter 10 to position the sensor element 33 in the distal end 16 ofthe catheter body 12.
The sensor element 35 and the sensor element 33 are collocated for redundancy and improved accuracy. The sensor elements 33 and 35 provide a primary and secondary measure, respectively, of core body temperature. The secondary measure of temperature is used in conjunction with primary temperature measurements for improved temperature sensing accuracy and reliability.
Collocated temperature sensor elements 33 and 35 are also useful for communicating with discrete monitoring and data compilation devices requiring temperature input, such as a discrete patient data recorder and a medical device, for examples.
It can be appreciated that sensor collocation may not be required in some systems. For example, when a patient nonnothermia is desired, and an intravascular temperature regulator is used on the patient, it may be desirable to have multiple temperature sensors in various parts of the body (including the bladder) to optimally determine the patient core body temperature and communicate that body temperature to the intravascular temperature regulator. According to one aspect ofthe invention, the temperature adapter 24 and Foley catheter 10 are used in conjunction with vascular heat exchange catheter such as disclosed in copending US Patent Application No. 09/220,897, the disclosure of which is incorporated herein by reference. It can be appreciated that core body temperature measurements are important to facilitate proper functioning of any system that regulates the core body temperature of a patient. Accordingly, redundant bladder temperature measurements with collocated sensor elements 33 and 35, is desirable to minimize any risk or inconvenience associated with temperature monitoring failure.
Foley catheters can be used to drain urine for several weeks. An integrated temperature sensor 46, may fail during this period. The method, thus, enables an introduced Foley catheter having a failed integrated temperature sensor 46 to be used continuously for draining urine notwithstanding failure of the integrated temperature sensor 46. The steps of maintaining the catheter 10 in the bladder 42 and attaching the adapter 24 to the proximal end 14 and advancing the adapter temperature sensor 38 provides a secondary measure of temperature without requiring the unpleasant steps of removal and replacement ofthe Foley catheter 10.
FIG. 3 shows the catheter body 12 having three lumens, the inflation lumen 20, the drainage lumen 22, and an integrated temperature sensor lumen 48. The temperature sensor lumen 48 houses the wire 46 ofthe integrated temperature sensor 46. The wire 40 ofthe adapter temperature sensor 38 is positioned freely in the drainage lumen 22.
FIG. 4 shows the cap 36, the fitting 34 and a seal 56. The cap 36 has internal threads 50 and the fitting 34 has external threads 52. The cap 36 has an axis and includes an axially disposed post 54. The seal 56 seats within the fitting 34. The post 54 defines a portion of a channel 58. The channel 58 extends axially through the cap 36, the fitting 34 and the seal 56. The temperature sensor wire 40 normally slides through the channel 58 when the cap 36 and the fitting 34 loosely engage, or disengage.
According to an aspect ofthe invention, the seal 56 is generally cylindrical in shape and circumscribes the wire 40. The wire 40 is lubricated to facilitate sliding when the cap 36 loosely fits on the fitting 34.
The fitting 34 defines an annular flange 62 so that when the cap 36 threads on to the fitting 34, the post 54 ofthe cap 36 presses the seal 56 against the annular flange 62. Rotation of the cap 36 with respect to the fitting 34 deforms the seal 56, which grips the wire 40 and thereby selectively anchors the wire 40 with respect to the cap 36 and the fitting 34.
FIG. 5 shows the cap 36 engaging the fitting 34. The cap 36 rotates to compress the seal 56 against the flange 62. The seal 56 circumscribes the wire 40 so that compressing the seal 56 anchors the wire 40.
IN USE:
An anticipated use for the invention described herein is in conjunction with a patient temperature regulation system having a heat exchange catheter. A system having a heat exchange catheter is described generally in US Patent No. 6,019J83, the disclosure of which is incorporated herein by reference. A feedback loop between the temperature sensor ofthe Foley catheter and the patient temperature regulation system is established.
A typical patient temperature regulation system includes an venous catheter having a heating and/or cooling element. The catheter inserts into a patient's central venous system to warm and/or cool the blood. The warmed/cooled blood circulates within the patient to effect the patient core body temperature. In accordance with the present invention, the core body temperature is measured using a Foley catheter and adaptor as described herein.
A heat exchange catheter is described in US Patent Nos. 6,146,411 and 6,126,684, the disclosures of which are incorporated herein by reference. One heat exchange catheter includes lumens for circulating heat exchange fluid within the catheter. This creates a closed system heat exchanger so that circulation of heat exchange fluid within the catheter cools/warms the blood of the patient. A system employing the heat exchange catheter has a temperature measurement device and a control unit. The control unit regulates the rate of flow ofthe heat exchange fluid as well as the temperature ofthe fluid. A feedback loop established between the Foley catheter- based temperature sensor elements ofthe present invention is used to regulate the heat exchange fluid temperature ofthe closed system, and the rate of heat exchange fluid flow.
While the present invention is anticipated to be used in conjunction with a patient temperature regulation system, it can be appreciated that it can be used in any of a number of systems. For example, the present invention can be used in virtually any surgical procedure requiring a measurement of a patient's core body temperature. It can also be appreciated that the seal 56 may take many forms, including that of an o- ring. Notwithstanding the form ofthe seal 56, the relative movement ofthe cap with respect to the seal 56 deforms the seal 56 to anchor the wire 40. It can be appreciated that the seal 56 need not simply seat in the fitting 34, the seal may also be formed as part ofthe fitting 34, or the cap 36. The fitting 34 may be discrete, or integrated with the temperature sensor lumen 32 ofthe adapter 24. Accordingly, the present invention should be limited only by the claims as set forth below.

Claims

CLAIMS: What is claimed is: 1. An adapter connectable with the drainage lumen of a Foley catheter, comprising: a connector attachable to the drainage lumen of a Foley catheter, the adapter having a drainage lumen, and a temperature sensor lumen with a fitting; a temperature sensor having a wire; a means for sealing the wire within the adapter; and a means for selectively anchoring the wire within the adapter.
2. An adapter as set forth in claim 1 , wherein the means for sealing includes a cap and a seal attachable to the adapter, the wire passes through the cap and seal.
3. An adapter as set forth in claim 2, wherein the fitting defines an annular flange, the cap compresses the seal against the annular flange to anchor the wire with respect to the adapter and for sealing the wire within the adapter.
4. An adapter as set forth in claim 3, wherein the seal is generally cylindrical in shape and circumscribes the wire.
5. An adapter as set forth in claim 3, wherein the adapter and the cap are threaded.
6. An adapter as set forth in claim 3, wherein the adapter and the cap are threaded, the cap rotatably attaches to the adapter so that rotation ofthe cap compresses the seal.
7. An adapter as set forth in claim 3, wherein the cap includes an axially disposed post, the post compresses the seal when the cap rotates onto the fitting.
8. An adapter as set forth in claim 1 , wherein the adapter attaches to the drainage lumen of a Foley catheter having a catheter body with a distal end, the temperature sensor includes a sensor element disposed in the distal end.
9. An adapter connectable with the drainage lumen of a Foley catheter, comprising: a connector attachable to the drainage lumen of a Foley catheter, the adapter having a drainage lumen and a temperature sensor lumen; a fitting attached to the temperature sensor lumen; a temperature sensor having a wire, the temperature sensor wire extending through the fitting; and a cap with a threaded interior, the fitting being threaded to enable the threads ofthe cap to join with the threads of the fitting, the cap including an opening to enable the wire to pass through the cap.
10. An adapter as set forth in claim 9, wherein the fitting defines an annular flange and the cap includes a seal, the cap presses the seal against the annular flange when the cap rotates.
11. An adapter as set forth in claim 9, wherein the fitting defines an annular flange and the cap includes a seal, the cap presses the seal against the annular flange when the cap rotates, the seal circumscribes the wire.
12. An adapter as set forth in claim 11 , wherein the seal is generally cylindrical in shape.
13. An adapter as set forth in claim 11 , wherein the cap includes an axially disposed post.
14. An adapter as set forth in claim 11 , wherein the cap includes an axially disposed post, the post defines an opening to enable the wire to pass through the post.
15. An adapter as set forth in claim 14, wherein the post compresses the seal when the cap rotates.
16. A Foley catheter having a temperature sensor adapter, comprising: a catheter body with a proximal end and a distal end, an inflatable balloon disposed near the distal end, an inflation lumen extending from the proximal end to the balloon for inflating and deflating the balloon; a drainage lumen extending from the proximal end to the distal end; an adapter connectable with the proximal end of the catheter body and in fluid communication with the drainage lumen, the adapter includes a drainage lumen and a temperature sensor lumen; a fitting attached to the adapter temperature sensor lumen; and a temperature sensor having a wire and a sensor element, the sensor element being disposed in the distal end ofthe catheter body and the wire extending through the catheter body drainage lumen and through the fitting.
17. A Foley catheter having a temperature sensor adapter as set forth in claim 16, wherein the fitting defines an annular flange and the adapter includes a cap and a seal, the cap presses the seal against the annular flange to anchor the wire when the cap rotates.
18. A Foley catheter having a temperature sensor adapter as set forth in claim 16, wherein the fitting defines an annular flange and the adapter includes a cap and a seal, the cap presses the seal against the annular flange when the cap rotates, the seal defines a opening to enable the wire to pass through the seal.
19. A Foley catheter having a temperature sensor adapter as set forth in claim 16, wherein the fitting defines an annular flange and the adapter includes a cap and a seal, the cap presses the seal against the annular flange when the cap rotates, the seal circumscribes the wire.
20. A Foley catheter having a temperature sensor adapter as set forth in claim 19 , wherein the seal is generally cylindrical in shape.
21. A Foley catheter having a temperature sensor adapter as set forth in claim 19, wherein the cap includes an axially disposed post.
22. A Foley catheter having a temperature sensor adapter as set forth in claim 19, wherein the cap includes an axially disposed post, the post defines an opening to enable the wire to pass through the post.
23. A method of using a temperature sensor adapter with a Foley catheter, comprising: introducing a Foley catheter into the bladder of a patient, the Foley catheter includes catheter body with a proximal end, a distal end a drainage lumen extending between the proximal end and the distal end for draining urine from the bladder; draining urine from the bladder via the drainage lumen; attaching an adapter having a temperature sensor to the proximal end ofthe catheter body; and advancing the temperature sensor towards the distal end ofthe catheter via the drainage lumen to sense temperature within the bladder.
24. A method as set forth in claim 23 , wherein the step of advancing the temperature sensor includes sliding the temperature sensor to the distal end ofthe catheter body.
25. A method as set forth in claim 23, wherein the step of introducing precedes the steps of attaching and advancing.
26. A method as set forth in claim 23, wherein the step of introducing includes: providing a Foley catheter with an integrated temperature sensor; detecting failure ofthe integrated temperature sensor; maintaining the catheter in the bladder; attaching the adapter to the proximal end; and advancing the adapter temperature sensor.
27. A method as set forth in claim 23, wherein the Foley catheter includes a balloon positioned at the distal end and an inflation lumen, the method includes inflating the balloon via the inflation lumen to hold the catheter in the bladder.
28. A method as set forth in claim 23, wherein the temperature sensor includes a wire that extends through the drainage lumen ofthe catheter and the adapter when the sensor advances, the method further comprises sealing the wire.
29. A method as set forth in claim 23, wherein the temperature sensor includes a wire and the method includes lubricating the wire.
30. A method as set forth in claim 23, wherein the temperature sensor includes a wire, the method further comprises anchoring the wire to hold the temperature sensor in the drainage lumen.
31. A method as set forth in claim 30, wherein the adapter includes a cap, a seal, a fitting with an annular flange and a temperature sensor lumen, the fitting being integrated with the temperature sensor lumen ofthe adapter, the seal seats against the annular flange when the cap attaches to the adapter, the seal defines a channel to enable the wire to pass through the seal, the wire passes through the seal wherein, the step of anchoring the wire includes attaching the cap to the adapter.
32. A method as set forth in claim 30, wherein the adapter includes a cap with a seal, a fitting with an annular flange and a temperature sensor lumen, the fitting being integrated with the temperature sensor lumen ofthe adapter, the cap and the temperature sensor lumen are threaded; the method includes seating the seal against the annular flange when the cap attaches to the adapter; defining an channel within the seal to enable the wire to pass through the seal; passing the wire through the seal; and the step of anchoring the wire includes threading the cap to the adapter and rotating the cap with respect to the adapter to deform the seal and anchor the wire.
33. A method for measuring and regulating patient temperature comprising: introducing a heat exchange catheter into the vasculature of a patient; introducing a Foley catheter into the bladder ofthe patient; draining urine from the bladder via the drainage lumen; attaching an adapter having a temperature sensor to the proximal end of the Foley catheter; and advancing the temperature sensor towards the distal end of the catheter to sense temperature within the bladder.
34. The method as set forth in claim 33, further comprising establishing a feedback loop between the temperature sensor and the heat exchange catheter for regulating patient core body temperature.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6974463B2 (en) 1999-02-09 2005-12-13 Innercool Therapies, Inc. System and method for patient temperature control employing temperature projection algorithm
US7458984B2 (en) 1998-01-23 2008-12-02 Innercool Therapies, Inc. System and method for inducing hypothermia with active patient temperature control employing catheter-mounted temperature sensor and temperature projection algorithm
US7914564B2 (en) 1999-02-09 2011-03-29 Innercool Therapies, Inc. System and method for patient temperature control employing temperature projection algorithm

Families Citing this family (140)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6312452B1 (en) * 1998-01-23 2001-11-06 Innercool Therapies, Inc. Selective organ cooling catheter with guidewire apparatus and temperature-monitoring device
US6585752B2 (en) 1998-06-23 2003-07-01 Innercool Therapies, Inc. Fever regulation method and apparatus
US6261312B1 (en) 1998-06-23 2001-07-17 Innercool Therapies, Inc. Inflatable catheter for selective organ heating and cooling and method of using the same
US6325818B1 (en) 1999-10-07 2001-12-04 Innercool Therapies, Inc. Inflatable cooling apparatus for selective organ hypothermia
US7371254B2 (en) 1998-01-23 2008-05-13 Innercool Therapies, Inc. Medical procedure
US7291144B2 (en) 1998-03-31 2007-11-06 Innercool Therapies, Inc. Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation
US6602276B2 (en) 1998-03-31 2003-08-05 Innercool Therapies, Inc. Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation
US6685732B2 (en) 1998-03-31 2004-02-03 Innercool Therapies, Inc. Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation employing microporous balloon
US8128595B2 (en) 1998-04-21 2012-03-06 Zoll Circulation, Inc. Method for a central venous line catheter having a temperature control system
US6338727B1 (en) 1998-08-13 2002-01-15 Alsius Corporation Indwelling heat exchange catheter and method of using same
US7364577B2 (en) 2002-02-11 2008-04-29 Sherwood Services Ag Vessel sealing system
US7901400B2 (en) 1998-10-23 2011-03-08 Covidien Ag Method and system for controlling output of RF medical generator
US7137980B2 (en) 1998-10-23 2006-11-21 Sherwood Services Ag Method and system for controlling output of RF medical generator
US6648906B2 (en) * 2000-04-06 2003-11-18 Innercool Therapies, Inc. Method and apparatus for regulating patient temperature by irrigating the bladder with a fluid
US6726708B2 (en) * 2000-06-14 2004-04-27 Innercool Therapies, Inc. Therapeutic heating and cooling via temperature management of a colon-inserted balloon
US6602243B2 (en) * 2000-12-15 2003-08-05 Alsius Corporation Foley catheter having redundant temperature sensors and method
US6450987B1 (en) 2001-02-01 2002-09-17 Innercool Therapies, Inc. Collapsible guidewire lumen
US6679906B2 (en) * 2001-07-13 2004-01-20 Radiant Medical, Inc. Catheter system with on-board temperature probe
KR20030090171A (en) * 2002-05-21 2003-11-28 서정환 ambulatory monitoring device for bladder pressure and bladder neck pressure
US8439893B2 (en) * 2002-06-11 2013-05-14 Medela Holding Ag System and method for efficient drainage of body cavity
US8764775B2 (en) 2002-08-22 2014-07-01 Ams Research Corporation Anastomosis device and related methods
US9307991B2 (en) 2002-08-22 2016-04-12 Ams Research, Llc Anastomosis device and related methods
US8551126B2 (en) 2002-08-22 2013-10-08 Ams Research Corporation Anastomosis device and related methods
US7186222B1 (en) * 2002-09-10 2007-03-06 Radiant Medical, Inc. Vascular introducer with temperature monitoring probe and systems for endovascular temperature control
US7228249B2 (en) * 2002-11-19 2007-06-05 General Motors Corporation Methods and apparatus for determining the condition of a sensor and identifying the failure thereof
US7044948B2 (en) 2002-12-10 2006-05-16 Sherwood Services Ag Circuit for controlling arc energy from an electrosurgical generator
US7252659B2 (en) * 2003-02-07 2007-08-07 Alfred E. Mann Institute For Biomedical Engineering At The University Of Southern California Implanted surgical drain with sensing and transmitting elements for monitoring internal tissue condition
US20070255167A1 (en) * 2004-03-01 2007-11-01 Wolfe Tory Medical, Inc. Apparatus for monitoring intra-abdominal pressure
US20040199114A1 (en) * 2003-04-01 2004-10-07 Alsius Corporation Intravascular heat exchange catheter with tissue preservative
US7722601B2 (en) 2003-05-01 2010-05-25 Covidien Ag Method and system for programming and controlling an electrosurgical generator system
US8104956B2 (en) 2003-10-23 2012-01-31 Covidien Ag Thermocouple measurement circuit
AU2003284929B2 (en) * 2003-10-23 2010-07-22 Covidien Ag Redundant temperature monitoring in electrosurgical systems for safety mitigation
US7396336B2 (en) 2003-10-30 2008-07-08 Sherwood Services Ag Switched resonant ultrasonic power amplifier system
US7131860B2 (en) 2003-11-20 2006-11-07 Sherwood Services Ag Connector systems for electrosurgical generator
US20060064146A1 (en) * 2004-09-17 2006-03-23 Collins Kenneth A Heating/cooling system for indwelling heat exchange catheter
US8052671B2 (en) * 2004-10-11 2011-11-08 Abviser Medical, Llc Intra-abdominal pressure monitoring device and method
US7628786B2 (en) 2004-10-13 2009-12-08 Covidien Ag Universal foot switch contact port
WO2006060248A2 (en) * 2004-12-03 2006-06-08 Wolfe Tory Medical, Inc. Pressure and temperature monitoring balloon catheter
US8636756B2 (en) 2005-02-18 2014-01-28 Ams Research Corporation Anastomosis device and surgical tool actuation mechanism configurations
US20060190066A1 (en) * 2005-02-23 2006-08-24 Worthen William J System and method for bringing hypothermia rapidly onboard
US20060190062A1 (en) * 2005-02-23 2006-08-24 Worthen William J System and method for reducing shivering when using external cooling pads
US7425216B2 (en) 2005-03-01 2008-09-16 Alsius Corporation System and method for treating cardiac arrest and myocardial infarction
US9474564B2 (en) 2005-03-31 2016-10-25 Covidien Ag Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator
US7892269B2 (en) 2005-04-18 2011-02-22 Zoll Circulation, Inc. External heat exchange pad for patient
US7717928B2 (en) * 2005-05-20 2010-05-18 Ams Research Corporation Anastomosis device configurations and methods
US7771443B2 (en) 2005-05-20 2010-08-10 Ams Research Corporation Anastomosis device approximating structure configurations
US20060276864A1 (en) * 2005-06-03 2006-12-07 Alsius Corporation Systems and methods for sensing patient temperature in temperature management system
US20060293732A1 (en) * 2005-06-27 2006-12-28 Collins Kenneth A Thermoelectric cooler (TEC) heat exchanger for intravascular heat exchange catheter
US7181927B2 (en) * 2005-07-01 2007-02-27 Alsius Corporation Primary heat exchanger for patient temperature control
US7951182B2 (en) 2005-07-14 2011-05-31 Zoll Circulation, Inc. System and method for leak detection in external cooling pad
US9028406B2 (en) * 2005-10-18 2015-05-12 Pneumoflex Systems, Llc Oral-esophageal-gastric device to diagnose reflux and/or emesis
US8602987B2 (en) 2005-10-18 2013-12-10 Pneumoflex Systems, Llc Techniques for evaluating stress urinary incontinence (SUI) using involuntary reflex cough test
US8597184B2 (en) * 2005-10-18 2013-12-03 Pneumoflex Systems, Llc Techniques for evaluating urinary stress incontinence and use of involuntary reflex cough as a medical diagnostic tool
US9011328B2 (en) * 2005-10-18 2015-04-21 Pneumoflex Systems, Llc Oral-esophageal-gastric device with esophageal cuff to reduce gastric reflux and/or emesis
US8734438B2 (en) 2005-10-21 2014-05-27 Covidien Ag Circuit and method for reducing stored energy in an electrosurgical generator
US20180311071A1 (en) 2005-10-21 2018-11-01 Daniel R. BURNETT Method and apparatus for peritoneal oxygenation
US20070093697A1 (en) * 2005-10-21 2007-04-26 Theranova, Llc Method and apparatus for detection of right to left shunting in the cardiopulmonary vasculature
US8597183B2 (en) * 2005-12-09 2013-12-03 Pneumoflex Systems, Llc Involuntary contraction induced pressure as a medical diagnostic tool using involuntary reflex cough test
US7947039B2 (en) 2005-12-12 2011-05-24 Covidien Ag Laparoscopic apparatus for performing electrosurgical procedures
WO2007078463A1 (en) * 2005-12-22 2007-07-12 The Trustees Of Columbia University In The City Of New York Systems and methods for intravascular cooling
US7513896B2 (en) 2006-01-24 2009-04-07 Covidien Ag Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
US8216223B2 (en) 2006-01-24 2012-07-10 Covidien Ag System and method for tissue sealing
US8685016B2 (en) 2006-01-24 2014-04-01 Covidien Ag System and method for tissue sealing
CA2575392C (en) 2006-01-24 2015-07-07 Sherwood Services Ag System and method for tissue sealing
CA2574934C (en) 2006-01-24 2015-12-29 Sherwood Services Ag System and method for closed loop monitoring of monopolar electrosurgical apparatus
CA2574935A1 (en) 2006-01-24 2007-07-24 Sherwood Services Ag A method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm
US8147485B2 (en) 2006-01-24 2012-04-03 Covidien Ag System and method for tissue sealing
US9186200B2 (en) 2006-01-24 2015-11-17 Covidien Ag System and method for tissue sealing
US7651493B2 (en) 2006-03-03 2010-01-26 Covidien Ag System and method for controlling electrosurgical snares
US7651492B2 (en) 2006-04-24 2010-01-26 Covidien Ag Arc based adaptive control system for an electrosurgical unit
US7822485B2 (en) 2006-09-25 2010-10-26 Zoll Circulation, Inc. Method and apparatus for spinal cooling
US7794457B2 (en) 2006-09-28 2010-09-14 Covidien Ag Transformer for RF voltage sensing
US8066725B2 (en) * 2006-10-17 2011-11-29 Ams Research Corporation Anastomosis device having improved safety features
US7993264B2 (en) * 2006-11-09 2011-08-09 Ams Research Corporation Orientation adapter for injection tube in flexible endoscope
US7867266B2 (en) 2006-11-13 2011-01-11 Zoll Circulation, Inc. Temperature management system with assist mode for use with heart-lung machine
US8277466B2 (en) * 2006-11-14 2012-10-02 Ams Research Corporation Anastomosis device and method
US20080140098A1 (en) * 2006-11-15 2008-06-12 Monica Kumar Anastomosis Balloon Configurations and device
US8491525B2 (en) * 2006-11-17 2013-07-23 Ams Research Corporation Systems, apparatus and associated methods for needleless delivery of therapeutic fluids
US7892270B2 (en) 2006-11-21 2011-02-22 Zoll Circulation Inc. Temperature management system and method for burn patients
US20080167526A1 (en) * 2007-01-08 2008-07-10 Crank Justin M Non-Occlusive, Laterally-Constrained Injection Device
US8353893B2 (en) 2007-03-07 2013-01-15 Zoll Circulation, Inc. System and method for rapidly cooling cardiac arrest patient
WO2008124644A1 (en) 2007-04-05 2008-10-16 Velomedix, Inc Automated therapy system and method
US8777941B2 (en) 2007-05-10 2014-07-15 Covidien Lp Adjustable impedance electrosurgical electrodes
US9737692B2 (en) 2007-05-18 2017-08-22 Zoll Circulation, Inc. System and method for effecting non-standard fluid line connections
EP2167000A1 (en) 2007-07-09 2010-03-31 Velomedix, Inc Hypothermia devices and methods
US7834484B2 (en) 2007-07-16 2010-11-16 Tyco Healthcare Group Lp Connection cable and method for activating a voltage-controlled generator
US8216220B2 (en) 2007-09-07 2012-07-10 Tyco Healthcare Group Lp System and method for transmission of combined data stream
US8512332B2 (en) 2007-09-21 2013-08-20 Covidien Lp Real-time arc control in electrosurgical generators
US7850649B2 (en) 2007-11-09 2010-12-14 Ams Research Corporation Mechanical volume control for injection devices
EP2249910A4 (en) * 2008-03-05 2012-12-26 Robert Hoch Pressure sensing catheter
US20090240121A1 (en) * 2008-03-21 2009-09-24 Nova Biomedical Corporation Intravascular sensor and insertion set combination
US8226639B2 (en) 2008-06-10 2012-07-24 Tyco Healthcare Group Lp System and method for output control of electrosurgical generator
US20100030139A1 (en) * 2008-07-30 2010-02-04 Copa Vincent G Anastomosis Devices and Methods Utilizing Colored Bands
US20110118767A1 (en) * 2008-07-30 2011-05-19 Ams Research Corporation Method and Apparatus for Determining Status of Approximation Structures on Anastomosis Device
US9603558B2 (en) 2008-08-15 2017-03-28 Theranova, Llc Methods and devices for the diagnosis and treatment of diabetes
US8262652B2 (en) 2009-01-12 2012-09-11 Tyco Healthcare Group Lp Imaginary impedance process monitoring and intelligent shut-off
US8388349B2 (en) * 2009-01-14 2013-03-05 Ams Research Corporation Anastomosis deployment force training tool
CA2774243A1 (en) 2009-09-14 2011-03-17 Urovalve, Inc. Insertion facilitation device for catheters
US10016620B2 (en) 2010-02-04 2018-07-10 Procept Biorobotics Incorporation Tissue sampling and cancer treatment apparatus
WO2012006625A2 (en) 2010-07-09 2012-01-12 Velomedix, Inc. Method and apparatus for pressure measurement
US8747386B2 (en) 2010-12-16 2014-06-10 Ams Research Corporation Anastomosis device and related methods
EP2683422B1 (en) 2011-03-07 2019-05-08 Potrero Medical, Inc. Sensing foley catheter
US10206802B2 (en) 2011-03-07 2019-02-19 Theranova, Llc Wearable apparatus for the treatment or prevention of osteopenia and osteoporosis, stimulating bone growth, preserving or improving bone mineral density, and inhibiting adipogenesis
WO2014099527A1 (en) 2012-12-17 2014-06-26 Theranova, Llc Wearable apparatus for the treatment or prevention of osteopenia and osteoporosis, stimulating bone growth, preserving or improving bone mineral density, and inhibiting adipogenesis
US9381335B2 (en) 2012-03-21 2016-07-05 Ams Research Corporation Bladder wall drug delivery system
US9387032B2 (en) * 2012-06-18 2016-07-12 Medtronic Ablation Frontiers Llc Systems and methods for detecting channel faults in energy delivery systems
US10137279B2 (en) 2012-11-29 2018-11-27 William Beaumont Hospital Catheter guide and method for utilizing the same
WO2014163901A1 (en) 2013-03-13 2014-10-09 Boston Scientific Scimed, Inc. Chemochromic medical articles
CA2897940A1 (en) * 2013-03-15 2014-09-25 C.R. Bard, Inc. Temperature sensing catheter
WO2014176486A1 (en) * 2013-04-26 2014-10-30 Serrano Eric Catheter
US10300244B2 (en) * 2013-07-22 2019-05-28 Renalsense Ltd. Unravelable catheter
US9872719B2 (en) 2013-07-24 2018-01-23 Covidien Lp Systems and methods for generating electrosurgical energy using a multistage power converter
US9636165B2 (en) 2013-07-29 2017-05-02 Covidien Lp Systems and methods for measuring tissue impedance through an electrosurgical cable
US10548523B2 (en) 2014-04-08 2020-02-04 Regents Of The University Of Minnesota Pressure sensing catheter system
CN106659868B (en) 2014-06-24 2019-11-29 普罗赛普特生物机器人公司 Sample of tissue and cancer treatment facilities
US9956040B1 (en) * 2014-09-30 2018-05-01 Emilio F. Lastarria Laser surgery system with safety control of non-target tissue temperature and method of use
US11510765B2 (en) 2015-01-23 2022-11-29 Spinal Singularity, Inc. Extended-use catheters
US9775698B2 (en) 2015-01-23 2017-10-03 Spinal Singularity, Inc. Urinary prosthesis systems
US11065093B2 (en) 2015-01-23 2021-07-20 Spinal Singularity, Inc. Catheter mating devices
US10675435B2 (en) * 2015-04-01 2020-06-09 Spinal Singularity, Inc. Extended-use valved urinary catheter
US10751506B2 (en) * 2015-04-01 2020-08-25 Spinal Singularity, Inc. Catheters and catheter mating devices and systems
TWI635879B (en) * 2015-10-07 2018-09-21 明達醫學科技股份有限公司 Catheter apparatus and operating method thereof
RU2018136593A (en) 2016-03-18 2020-04-20 Просепт Байороботикс Корпорейшн MINIMALLY INVASIVE METHODS AND SYSTEMS FOR HEMOSTASIS IN THE BLOODING BLOOD CLOSED TISSUE
CN106402424A (en) * 2016-12-18 2017-02-15 马宏威 Closestool water inlet valve adopting ceramic tube and ceramic column
US10813589B2 (en) 2017-06-03 2020-10-27 Sentinel Medical Technologies, LLC Catheter for monitoring uterine contraction pressure
US11045128B2 (en) 2017-06-03 2021-06-29 Sentinel Medical Technologies, LLC Catheter for monitoring intra-abdominal pressure
US11185245B2 (en) 2017-06-03 2021-11-30 Sentinel Medical Technologies, Llc. Catheter for monitoring pressure for muscle compartment syndrome
US10799131B2 (en) 2017-06-03 2020-10-13 Sentinel Medical Technologies, LLC Catheter for monitoring intrauterine pressure to protect the fallopian tubes
US11045143B2 (en) 2017-06-03 2021-06-29 Sentinel Medical Technologies, LLC Catheter with connectable hub for monitoring pressure
US11660032B2 (en) 2017-09-07 2023-05-30 SWSA Medical Ventures, LLC Catheter assemblies, oxygen-sensing assemblies, and related methods
US11395616B2 (en) 2017-09-07 2022-07-26 WSA Medical Ventures, LLC Catheter assemblies, oxygen-sensing assemblies, and related methods
CN107569728B (en) * 2017-09-30 2019-01-04 南阳市中心医院 A kind of heat perfusion direct temperature measurement drainage tube external member
US11672457B2 (en) 2018-11-24 2023-06-13 Sentinel Medical Technologies, Llc. Catheter for monitoring pressure
EP3685871B1 (en) 2019-01-22 2021-09-29 Eight Medical International B.V. A temperature sensing lavage catheter and method of manufatcuring thereof
US11779263B2 (en) 2019-02-08 2023-10-10 Sentinel Medical Technologies, Llc. Catheter for monitoring intra-abdominal pressure for assessing preeclampsia
US11628271B2 (en) 2019-06-10 2023-04-18 Spinal Singularity, Inc. Urinary catheter
EP4009860A4 (en) 2019-08-08 2022-11-16 Sentinel Medical Technologies, LLC Cable for use with pressure monitoring catheters
US11559257B2 (en) 2019-12-23 2023-01-24 Covidien Lp Catheter insert including one or more sensors
US11617543B2 (en) 2019-12-30 2023-04-04 Sentinel Medical Technologies, Llc. Catheter for monitoring pressure
EP4275593A1 (en) 2022-05-09 2023-11-15 Wellspect AB Disposable medical device assembly with sensor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413633A (en) * 1981-06-01 1983-11-08 Yanda Roman L Method and apparatus for monitoring body conditions
US4967765A (en) * 1988-07-28 1990-11-06 Bsd Medical Corporation Urethral inserted applicator for prostate hyperthermia
US5338314A (en) * 1991-04-22 1994-08-16 B. Braun Medical, Inc. Rotating Y-connector
US5344435A (en) * 1988-07-28 1994-09-06 Bsd Medical Corporation Urethral inserted applicator prostate hyperthermia
US5352215A (en) * 1992-08-26 1994-10-04 Scimed Life Systems, Inc. Y-adapter with a sideport radius

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322594A (en) * 1980-06-27 1982-03-30 Respiratory Care, Inc. Temperature control system with alarm and shut down for non-tracking condition of dual thermometers
US4497324A (en) * 1983-10-03 1985-02-05 American Hospital Supply Corporation Temperature monitoring catheter
US5249585A (en) * 1988-07-28 1993-10-05 Bsd Medical Corporation Urethral inserted applicator for prostate hyperthermia
US6009351A (en) * 1997-07-14 1999-12-28 Urologix, Inc. System and method for transurethral heating with rectal cooling
US6419643B1 (en) * 1998-04-21 2002-07-16 Alsius Corporation Central venous catheter with heat exchange properties
US6126684A (en) * 1998-04-21 2000-10-03 The Regents Of The University Of California Indwelling heat exchange catheter and method of using same
US6146411A (en) * 1998-12-24 2000-11-14 Alsius Corporation Cooling system for indwelling heat exchange catheter
US6019783A (en) * 1999-03-02 2000-02-01 Alsius Corporation Cooling system for therapeutic catheter
US6290717B1 (en) * 1999-03-31 2001-09-18 Alsius Corporation Temperature probe and interconnect cable for hypothermia catheter temperature feedback
US6602243B2 (en) * 2000-12-15 2003-08-05 Alsius Corporation Foley catheter having redundant temperature sensors and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413633A (en) * 1981-06-01 1983-11-08 Yanda Roman L Method and apparatus for monitoring body conditions
US4967765A (en) * 1988-07-28 1990-11-06 Bsd Medical Corporation Urethral inserted applicator for prostate hyperthermia
US5344435A (en) * 1988-07-28 1994-09-06 Bsd Medical Corporation Urethral inserted applicator prostate hyperthermia
US5338314A (en) * 1991-04-22 1994-08-16 B. Braun Medical, Inc. Rotating Y-connector
US5352215A (en) * 1992-08-26 1994-10-04 Scimed Life Systems, Inc. Y-adapter with a sideport radius

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7458984B2 (en) 1998-01-23 2008-12-02 Innercool Therapies, Inc. System and method for inducing hypothermia with active patient temperature control employing catheter-mounted temperature sensor and temperature projection algorithm
US6974463B2 (en) 1999-02-09 2005-12-13 Innercool Therapies, Inc. System and method for patient temperature control employing temperature projection algorithm
US7914564B2 (en) 1999-02-09 2011-03-29 Innercool Therapies, Inc. System and method for patient temperature control employing temperature projection algorithm

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US6602243B2 (en) 2003-08-05
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AU2002232502A1 (en) 2002-06-24
US20020082587A1 (en) 2002-06-27

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