CA2035488A1 - Endotracheal tube intubation assist device - Google Patents
Endotracheal tube intubation assist deviceInfo
- Publication number
- CA2035488A1 CA2035488A1 CA002035488A CA2035488A CA2035488A1 CA 2035488 A1 CA2035488 A1 CA 2035488A1 CA 002035488 A CA002035488 A CA 002035488A CA 2035488 A CA2035488 A CA 2035488A CA 2035488 A1 CA2035488 A1 CA 2035488A1
- Authority
- CA
- Canada
- Prior art keywords
- handle
- endotracheal tube
- assist device
- insertion section
- trachea
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
- A61B1/2676—Bronchoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0475—Tracheal tubes having openings in the tube
- A61M16/0477—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids
- A61M16/0484—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids at the distal end
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
Abstract
ABSTRACT
An endotracheal tube intubation assist device in which an endoscope is utilized to provide a visual image as an aid in performing the intubation of an endotracheal tube within a patient's trachea. The assist device includes a handle, a malleable elongated insertion section and an endoscope assembly having a viewing end mounted within the insertion section to provide a visual image of the trachea.
In use, the endotracheal tube is placed around the insertion section and removably attached to the handle for insertion into the trachea. The malleable insertion section can be bent by the attending medical personnel for providing a custom fit for the patient at hand. The handle of the assist device is also formed with an oxygen supply conduit for supplying oxygen to the patient during the intubation process. Additionally, the handle includes a suction port for attaching a suction tube for evacuation of the trachea during the intubation process.
An endotracheal tube intubation assist device in which an endoscope is utilized to provide a visual image as an aid in performing the intubation of an endotracheal tube within a patient's trachea. The assist device includes a handle, a malleable elongated insertion section and an endoscope assembly having a viewing end mounted within the insertion section to provide a visual image of the trachea.
In use, the endotracheal tube is placed around the insertion section and removably attached to the handle for insertion into the trachea. The malleable insertion section can be bent by the attending medical personnel for providing a custom fit for the patient at hand. The handle of the assist device is also formed with an oxygen supply conduit for supplying oxygen to the patient during the intubation process. Additionally, the handle includes a suction port for attaching a suction tube for evacuation of the trachea during the intubation process.
Description
~3~88 ENDQTRACHEAL TUBE INTUBATION ASSIST DEVICE
This invention relates to endotracheal tubes and more particularly to an endotracheal tube in~ubation assist device wherein a fiber optic endoscope is utilized to provide a visual image of the interior of the trachea as an aid in manipulating the assist device for performing the insertion of an endotracheal tube.
1~ Fiber optic endoscopes are utilized in a variety of medical procedures. In general, a fiber optic endoscope is an instrument which can be inserted into a body cavity to provide a remote image of the body cavity. An endoscope typically includes an insertion section and an external control section. The insertion section is adapted to be inserted into a body cavity. The insertion section typically includes a light carrying bundle of optical fibers, an optical objective lens and a fiber optic coherent cable which carries an optical image to the control section. The control section includes a light source and processing means for processing the imaye received from the optical bundle. The control section also includes displaying means, such as an eyepiece or television monitor, for displaying a visual image of the body cavity. U.S. Patent No. 4,754,328 tO Barath is representative of these type of endoscopes.
In some types of endoscopes, the insertion section of the endoscope can be shaped or bent in a controlled manner by external manipulation to guide the endoscope through a 3t) body cavity. This allows the insertion section to be maneuvered through the body cavity without causing harm to the patient. These types of endoscopes are typically utilized for examination of the digestive tract. U.S.
Patent No. 4,688,554 to Habib, U.S. Patent No. 4,755,873 to Kobayaski, and U.S. Patent No . 4, 714, 07 5 to Krauter, are representative of these type6 of endoscopes.
21: 3~8~
One area of medicine in which an endoscope has heretofore not been generally utilized, is in the insertion of an endotracheal tube within the trachea of a patient.
This is a common medical procedure in which an endotracheal tube is located within ~he trachea and then connected to a supply conduit to supply oxygen or anesthetic gases to the lungs. ~rior to insertion of the endotracheal tube, the trachea must often be evacuated to clear mucous, blood, or other debris from the trachea.
In some cases, endotracheal intubation may be difficult to accomplish. This may be due to the fact that the patient is severely injured or because different patients, depending on their body size, age, and sex have differently shaped pathways into the trachea. The intubation process if incorrectly done may cause injuries to the patient, such as tears and damage to the larynx, trachea, nasopharynx and bronchi. Additionally, improper placement of the endotracheal tube, such as in the esophagus, (swallowing tube leading to the stomach) or in
This invention relates to endotracheal tubes and more particularly to an endotracheal tube in~ubation assist device wherein a fiber optic endoscope is utilized to provide a visual image of the interior of the trachea as an aid in manipulating the assist device for performing the insertion of an endotracheal tube.
1~ Fiber optic endoscopes are utilized in a variety of medical procedures. In general, a fiber optic endoscope is an instrument which can be inserted into a body cavity to provide a remote image of the body cavity. An endoscope typically includes an insertion section and an external control section. The insertion section is adapted to be inserted into a body cavity. The insertion section typically includes a light carrying bundle of optical fibers, an optical objective lens and a fiber optic coherent cable which carries an optical image to the control section. The control section includes a light source and processing means for processing the imaye received from the optical bundle. The control section also includes displaying means, such as an eyepiece or television monitor, for displaying a visual image of the body cavity. U.S. Patent No. 4,754,328 tO Barath is representative of these type of endoscopes.
In some types of endoscopes, the insertion section of the endoscope can be shaped or bent in a controlled manner by external manipulation to guide the endoscope through a 3t) body cavity. This allows the insertion section to be maneuvered through the body cavity without causing harm to the patient. These types of endoscopes are typically utilized for examination of the digestive tract. U.S.
Patent No. 4,688,554 to Habib, U.S. Patent No. 4,755,873 to Kobayaski, and U.S. Patent No . 4, 714, 07 5 to Krauter, are representative of these type6 of endoscopes.
21: 3~8~
One area of medicine in which an endoscope has heretofore not been generally utilized, is in the insertion of an endotracheal tube within the trachea of a patient.
This is a common medical procedure in which an endotracheal tube is located within ~he trachea and then connected to a supply conduit to supply oxygen or anesthetic gases to the lungs. ~rior to insertion of the endotracheal tube, the trachea must often be evacuated to clear mucous, blood, or other debris from the trachea.
In some cases, endotracheal intubation may be difficult to accomplish. This may be due to the fact that the patient is severely injured or because different patients, depending on their body size, age, and sex have differently shaped pathways into the trachea. The intubation process if incorrectly done may cause injuries to the patient, such as tears and damage to the larynx, trachea, nasopharynx and bronchi. Additionally, improper placement of the endotracheal tube, such as in the esophagus, (swallowing tube leading to the stomach) or in
2~ only one bronchus, (left or right) of the lung, may provide serious complications for a patient.
It is apparent then that an external visual image of the trachea would be helpful for use in this medical intubation process. In other cases such as in the training of medical personnel or when used ~y relatively inexperienced medical personnel, an external visual image of the trachea would also be quite helpful in the intubation process.
~isclosure o~_~he Invention
It is apparent then that an external visual image of the trachea would be helpful for use in this medical intubation process. In other cases such as in the training of medical personnel or when used ~y relatively inexperienced medical personnel, an external visual image of the trachea would also be quite helpful in the intubation process.
~isclosure o~_~he Invention
3~ Accordingly, this invention relates to an assist device for performing an endotracheal tube intubation in a medical patient, in which an endoscope is utilized to provide a visual image as an aid in the insertion and intubation process. Additionally, the assist device is constructed with a malleable insertion section which may be , ~ - 2 ~ g g bent to a shape which is most accommodating to a particular patient.
The endotracheal intubation assist device of the invention, generally stated, comprises, a handle, a malleable metal insertion section attached to the handle, and an endoscope having a viewing end mounted within the insertion section to provide a visual image of the trachea and related body structures while the intubation is being accomplished.
In general, an endotracheal tube is a breathing conduit formed of a soft Elexible plastic medical tubing material adapted to be placed into a patient's trachea.
The endotracheal tube is open at a distal end where oxygen or other gases are directed into the lungs. The proximate end of the endotracheal tube is typically formed with a tube fitting adapted to be connected to a source of pressurized gas such as oxygen or gases for anesthesia.
The endotracheal tube may also include an inflatable bladder or balloon at a distal end which can be inflated by air pressure to contact the trachea and seal the endotracheal tube within the trachea just above the bronchi of the lungs. In use, an endotracheal tube must be centered between the two opposite bronchi (right and left) of the lungs and sealed within the trachea such that the lungs are equally supplied by gas flow through the open distal end of the endotracheal tube into the bronchi.
During the intubation process the flexible endotracheal tube must be traversed through the mouth, the nasopharynx, the larynx and the trachea of the patient and placed in a proper position within the trachea without causing damage to any body structures. The assist device of the invention functions as an aid in effecting this intubation process.
The handle and insertion section of the assist device are constructed such that a standard endotracheal tube may be placed around the insertion section and attached to the handle. The insertion section is formed of a malleable 2n3~
q material such as malleable stainless steel or silver tubing and may be bent by an operator to accommodate the shape of the trachea of the patient at hand. It is contemplated that different insertion sections may be sized for use with the different standard sizes of endotracheal tubes used for adults, children, or for smaller or larger people. The assist device may thus be customized by an operator to suit a particular patient.
As previously stated, the viewing end of the endoscope is mounted within the insertion section and provides a visual image of the trachea during the intubation process.
In use, the handle can be manipulated using this visual image for guiding the insertion section and endotracheal tube into the trachea.
The endoscope of the assist device includes a viewing end with an optic objective lens and a light carrying bundle of optical fibers located at the open distal end of the insertion tube. The endoscope assembly also includes an external control section. A detachable cable unit having fiber optic cables passed through the insertion section and the handle of the assist device connect the viewing end of the endoscope to the external control section of the endoscope. The external control section includes a light source and processing means including a video camera for processing the image from the viewing end to produce a wide angle image of the body interior on a television monitor.
The external control section also includes a receptical on a front panel for receiving the cable unit.
At the receptical an image bundle is precisely aligned to the optics and video camera inside the control unit. This recep-tical also precisely aligns the light carrying fibers in the cable unit to the light soure within the control unit.
The handle of the assist device is formed with an inner passageway wherein the insertion section is mounted.
The handle may also include an oxygen supply conduit for ': ' ` `` 2035~88 providing oxyyen to the patient during the intubation process. Additionally, a separate evacuation port is provided on the handle for passing a suction tube to aid in removing mucous, blood or other debris from the trachea during the intubation process.
In use of the assist ~evice of the invention, a standard endotracheal tube suited to a particular patient is removably attached to the handle of the assist device placed around the malleable insertion section of the assist device. The malleable insertion section may be bent by hand by the physician or attending medical personnel to a shape that is most suited for maneuvering the insertion section and endotracheal tube through that particular patient's trachea.
The insertion section with the endotracheal tube attached may thus be guided by manipulation of the handle of the assist device into the patient's mouth, across the nasopharynx, larynx, and trachea of the patient, and positioned with the open end of the endotracheal tube 2~ located in the trachea between the bronchi of the lungs.
During the intubation procedure the oxygen supply conduit attached to the handle of the assist device may temporarily supply oxygen to the lungs. Additionally evacuation of the mouth and tracheal area may also be accomplished by placing a suction tube throu~h the suction port of the handle and into the trachea.
During the intubation process, an image of the body structure being traversed by the viewing end of the endoscope is transferred and shown on the monitor 3~ television. The handle of the assist device can be guided in response to this image to place the endotracheal tube in a proper position within the trachea.
once the endotracheal tube is properly situated within the trachea between the bronchi of the lungs, the endotracheal tube may be disconnected from the handle and the insertion section may be removed from the endotracheal tube. The sealing bladder of the endotracheal tube may ~ 2~3~8 then be inflated and the endotracheal tube may be connected to a pressurized gas source such as oxygen or anesthetic gases.
From the foregoing, the advantages of this invention will become readily appar~nt, when taken in conjunction with the description of the drawing which follows.
Brie~_~escription of the Drawinq Figure 1 is a perspective view of an endotracheal tube int~bation assist ~evice constructed in accordance with the invention and shown prior to intubation of an endotracheal tube into the trachea o~ a reclining patient;
Figure 2 is a perspective view of the endotracheal tube intubation assist device shown during the intubation process;
Figure 3 is a perspective view of the endotracheal tube intuba~ion assist device shown after intubation of the patient has been completed and an inflatable bladder of the endotracheal tube is being inflated to seal the endotracheal tube within the patient's trachea;
Figure 4 is a side elevation view of the endotracheal tube intubation assist device of the invention shown with an endotracheal tube attached;
Figure 5 is a vertical cross section taken along section line 5-5 of Figure 4 showing details of the internal stru~ture of the endotracheal tube intubation assist device;
Figure 6 is a par~lal enlarged vertical cross section taken along section line 6-6 of Figure 4 showing details of the internal structure of the handle of the endotracheal tube intubation assist device of the invention;
Figure 7 is a horizontal cross section taken along section line 7-7 of Figure 5;
Figure 8 is a perspective view partially cut away of a patient showing the final placement of the endotracheal tube in the patient; and 2~3~88 Figure 9 is a side elevation view o an endotracheal tube.
Referring now to Figures 1-9, an endotracheal ~ube intubation assist device 10 construct~d in accordance with the invention is shown for use with a medical patient P.
The endotracheal tube intubation assist device 10 is intended for use in inserting and positioning an endotracheal tube 12 within the trachea T of the patient P.
As shown in Figure 9, the endotracheal tube 12 is an elongated flexible plastic tube adapted to be inserted into the trachea T of the patient P and connected to an oxygen supply conduit 13 or the like (Figure 3) for providing oxygen or other gases such as anesthetic gases to the patient P. The endotracheal tube 12 may be of a standard size and configuration and may include a tube fitting 14 at a proximate end which may be connected to the oxygen supply conduit 13 commonly found in hospitals and an~ulances. The endotracheal tube 12 is open at a distal end 16 where the 2U oxygen or other gases flow into the trachea T.
The endotracheal tube 12 may also include an inflatable bladder portion 18 which may be inflated for sealing the endotracheal tube 12 within the trachea T. The bladder portion 18 is connected to a compressed air conduit 20 having a standard tube fitting 21 at an exterior proximate end. This tube fitting 21 may be remo~ably connected to a source of compressed air 23 (Figure 3) or to an air pump ~or inflating the bladder portion 18. The inflated bladder 18 contacts the walls of the trachea T and seals the endotracheal tube 12 within the trachea T between the bronchi B (Figure 8) of the lungs RL, LL of the patient P.
As shown in Figure 8, the endotracheal tube 12 is intended to be inserted into the trachea T of a patient situated with its open distal end 16 located between the bronchi B of the lungs RL, LL to supply oxygen equally to 2 ~ g ~
the lungs RL, LL. In this position, the inflatable bladder 18 of the endotracheal tube 12 is inflated to press against the inner wall of the trachea T and seal the endotracheal tube 12 within the trachea T.
In positioning the endotracheal tube 12 within the trachea T, the endotracheal tube 12 must be maneuvered through the mouth M, nasopharynx NP, the larynx L, and the trachea T of the patient in that order. While the endotracheal tube 12 is being inserted into the trachea T
care must be taken to avoid intubation of the endotracheal tube 12 in the esophagus E (swallowing tube leading to the stomach). Additionally, care must be taken to lodge the distal end 16 of the endotracheal tube 12 between the lungs RL, LL and not in a single bronchus B.
The endotracheal tube 12 is formed of a soft plastic material and as shown in Figure 9, the distal end 16 of the endotracheal tube 12 is angled to aid in the passage of the endotracheal tube 12 through the trachea T. Additionally, the endotracheal tube 12 is formed with an opening 22 at its distal end 16 which aids in the e~ual dispersion of oxygen into the lungs ~, RL.
Referring now to Figures 1-4, the endotracheal tube intubation assist device 10 of the invention is shown.
The endotracheal tube intubation assist device 10 generally stated comprises, a handle portion 26, an insertion section 28, and an endoscope assembly 30 having a viewing end 32 mounted within the insertion section 28 to provide an image of the mouth, nasopharynx, larynx and trachea as the endotracheal tube 12 is passed therethrough. The handle portion 26 of the assist device 10 includes attachment means for attaching the insertion section 28 and endotracheal tube 12.
As shown in Figure 1, the endoscope assembly 30 includes the viewing end 32 (Figure 5) mounted within the insertion section 28 of the assist de~ice 10, and an external control section. An optic cable assembly 34 connects the control section to the viewing end 32. The 203~8~
optic cable assen~ly 34 includes a plurality of fiber optic bundles. A light carrying bundle provides a pathway from a light source to the viewing end 32. An image carrying bundle provides a pathway for an image from the viewing end 32 to the external control section of the endoscope assem~ly 30. The control section includes a processing unit 36 for processing the image from the viewing end 32, and a TV monitor 38 for presenting a wide angle ~isual image 44 of the body interior Eor the operator of the assist device 10.
In general the processing unit 36 of the control section allows the image picked up by a coherent fiber optic bundle at the viewing end 32 (Figure 5) of the endoscope assembly 30 to be innerfaced with optics which in turn deliver the image to a video camera (not shown). The video camera inside the processing unit 36 then delivers this image information electronically to the TV monitor 38.
Inside the optic cable assembly 34 are optic fibers which carry light from a light source (not shown) located inside the control unit. The light source delivers light to the fiber optic cable assembly 3~ through a connector 36.
In general, connector 36 is a coupling which fits into a mating receptacle in a front panel of the contral section of the endoscope assembly 30. This connector 36 functions to precisely aligns the image bundle to both optics and camera and precisely align the light carrying bundle to the light source.
The light source of the endoscope assembly 30 may be any high intensity light source such as xenon, mercury arc, halogen or laser light. In any case, the light source must be precisely aligned through the connector 36 to the light fibers in the optic cable asse~bly 34.
A light carrying bundle of optical fibers 40 (Figure 7) terminate at the viewing end 32 of the endoscope assembly 30. This light carrying bundle oE optical fibers 40 is connected to the light source within the control 2~3~3~
1 o section 30 to ~rovide illumina~ion of the body cavity.
Additionally the ~iewing end 32 includes an objective optic lens 34 (Figure 7) connected through the image carr~ing bundle of the optic cable assembly 34 to the video camera of the control section 30.
The previously cited U.S. Patent No . 4, 7 54,328 to Barath and U.S. Patent No . 4, 7 82, 819 to Adair disclose endoscope assemblies which include the above described components.
AS shown in Figure 2, this endoscope assembly 30 arrangement produces a wide angle visual image 44, of the interior of the body on the TV monitor 38. In use of the assist device lO, the operator of the assist device 10 such as a physician or other attending medical personnel, may use this wide angle visual image 44 in guiding and properly placing the endotracheal tube 12 within the trachea T.
With the present endoscope assembly 30, the eyepiece of a standard endoscope has been eliminated so that the medical personnel can work from a television monitor 38.
This eliminates the use of an eyepiece and makes the intubation procedure much easier for the operator (no bending over). Also, other assistants can also see at the same time and better aid in the procedure.
Referring now to Figures 4-7 the construction of the handle 26 of the intubation assist device 10 is shown. rrhe handle 26 is generally hollow and cylindrical in shape with an inner diameter and an outer diame~er. The handle 26 includes a knurled outer surface 45 to provide a non-slip grip for the operator of the assist device lO. The handle 3~ 26 may be fabricated from a corrosion resistant metal or plastic material which is durable and easy to clean. By way of example only and not by limitation, the handle 26 may be sized (i.e. 1" o.d. x l/4" i.d. x 6" long) to be easily hand manipulated by an operator.
The handle 26 also includes an interior passageway 46 (Figure 5) therethrough which functions as an attachment means for attaching the insertion section 28 of the assist 21~r3 l l device 10 to the handle 26. This attachment is accomplished by an interference fit between the mating components (i.d. of passayeway ~6 and o.d. of insertion sec,tion 28).
In addition and as shown in Figure 5, the handle 26 includes a counterbore 48 at a lower end which functions as an attachment means for attaching the endotracheal tube 12 to the handle 26. This attachment is accomplished by placing the endotracheal tube 12 around or circumjacent to the insertion section 28 and pressing the tube fitting 14 on the proximate end of the endotracheal tube 12 into the counterbore 48 of the handle 26. Again, an interference fit between the mating elements (i.d. of counterbore 48, o.d. of fitting 14) attaches the mating elements to one another. Additionally, the tube fitting 14 of the endotracheal tube 12 may be tapered or angled to wedge into the counterbore 48.
with the endotracheal tube 12 attached to the handle 26 and as shown in Figure 5, the insertion section 28 does not extend past the distal end 16 of the endotracheal tube 12. This insures that the hard external surface of the insertion section 28 does not contact the trachea or other bod~ structures during the intubation process.
The handle 26 of the assist device 10 also includes a tube fitting 50 placed through the handle 26 and in communication with the counterbore 48 of the handle 26. In use of the assist device 10, an oxygen supply conduit 51 (Figure 1) may be attached to the tube fitting 50 as an oxygen supply means for providing oxygen to the patient P
3~ during the intubation process. As is apparent from Figure 5, oxygen can flow under pressure from the oxygen supply conduit 51 through the tube fitting 50, into the counterbore 48 of the handle 26, through tube fitting 14 of the endotracheal tube 12, and through an annular space 52 which is forme~ between the inside diameter of the circumferentially mounted endotracheal tube 12 and the outside diameter of the insertion section 28 of the assist ~3~8~
device 10. During the intubation process, oxygen m~y thus flow out the open end 16 of the endotracheal tube 12 and into the trachea T of the patient P.
The handle 26 of the assist device 10 also includes a suction port 54 wherein a flexible suction tube 56 may be placed into the handle 26 through the inside diameter of the insertion section 28 and in~o the trachea T. The suction tube 56 may be utilized as an evacuation means to evacua~e blood, mucous, and other debris from the trachea T
prior to and during the intubation process. A control valve 5~ attached to the handle 26, seals the suction port 54 when it is not in use. It should be understood that the oxygen delivery system and the suction system are "add-on"
~unctions of the assist device 10 and are not essential to its operation. It is contemplated that devices will be available with and without these features.
With reference to Figure 6, the handle 26 of the assist device 10 also includes a sealing coupling 60 having a male connector 62. The coupling 6Q is attached to a proximate end of the handle 26 and provides means for opening the internal diameter 46 of the handle 26 for placing the viewing end 32 and optic cable assembly 34 through the handle 26 into the inner diameter of the insertion section 28. The optic cable assembly 34 includes a boot or female connector 64 which snaps onko the male connector 62 to seal the optic cable assembly 34. A seal member 66 seals the coupling 60 of the handle 26 to the handle 26.
In use of the assist device 10 o~ the invention, an endotracheal tube 12 sized for a particular patient P, is placed around or circumjacent to the outside diameter of the insertion section 28 o~ the assist device 10. The malleable insertion section 28 is also sized with a leng~h which suits the patient P at hand. The malleable insertion section 28 is then bent by hand by the physician or other attending medical personnel to accommodate the patient P.
`" 2~3~8~
AS an example, a suita~le ra~ius o~ cur~ature "r" is shown in Figure 3.
In bending the malleable insertion section 28 to a shape that most easily passes through the trachea T of the patient P, the operator may utilize medical experience and training, and consider such factors as the size, age, sex, and medical condition of the patient P.
The insertion section 28 is preferably formed of a malleable material such as specially treated stainless steel tubing which can be easily bent to the required shape and will maintain this customized shape during the intubation process. Once the insertion section 28 has been bent to shape as reguired, the insertion section 28 can be attached to the interior passageway 46 of the handle 26.
As previously explained, the inner diameter of the interior passageway 46 of the handle and the outside diameter of the insertion section 28 are accurately formed to provide a tight interference fit between the mating parts. The insertion section 28 thus becomes an extension of the handle 26 and the two elements become one. After the insertion section 28 has been attached to the handle 26, the endotracheal tube 12 can also be attached to the handle 26 by placing the endotracheal tube 12 around the insertion section 28 and by sliding tube fitting 14 of the endotracheal tube 12 into the counterbore 48 on the handle 26.
Prior to insertion of the insertion section 28 into the patient's mouth M, the oxygen supply conduit 51 can be attached to the tube fitting 50 on the handle 26.
Additionally, the suction tube 56 can be passed through the handle 26 and into the internal diameter of t~e insertion section 28. This arrangement of the assist device 10 prior to insertion into the patient P is clearly shown in Figure 1.
Next and as shown in Figure 2, the insertion section 28 may be guided by the operator into the patient's mouth, through the nasopharynx, larynx, and trachea and situated 2(~3~
with the open distal end of the endotracheal tube 12 positioned in the trachea above the bronchi B of the lungs RL, LL. This correct placement of the endotracheal ~ube 12 is clearly shown in Figure 8.
In passing the endotracheal tube 12 and insertion section 28 into the trachea T, a visual image 44 of the body interior is shown on the TV monitor 38. This visual image 44 is Eormed as the viewing end 44 of the endoscope assembly 30 passes through the trachea T. This visual image 44 allows the physician to manipulate the handle 26 and to guide the insertion section 28 into correct position within the trachea T, without causing harm to the patient.
During the intubation process, suction tube 56 situated at the distal end of the insertion section 28 provides evacuation of blood, mucous, and debris from the trachea T. In addition during this intubation process, oxygen may flow from the oxygen supply conduit 51 through the insertion section ~8 and into the patient's trachea T
2~ to provide oxygen to the patient's lungs RL, L~.
Once the intubation has been completed and as shown in Figure 3, tube fitting 14 at the proximate end of the endotracheal tube 12 can be removed from the handle 26.
The handle 20 can then be manipulated to pull the insertion section 28 out of the patient's mouth. The endotracheal tube 12 can then be coupled to a source of compressed oxygen 13 for providing oxygen to the patient, or can be attached to a standard anesthesia machine for delivery of anesthetic gases.
Once the endotracheal tube 12 is properly placed within the trachea T, the inflatable bladder 18 of the endotracheal tube 12 can be inflated by air pressure from compressed air conduit 23. This seals the endotracheal tube 12 within the trachea T.
Thus the invention provides an assist device in which an endoscope can be utilized as an aid in performing an endotracheal tube intubation. Furthermore, the malleable 203~
insertion sec~ion of the ass.ist device can be bent by the operator as required, to provide a custom fit for the patient at hand.
. Although the invention has been described in detail with particular reference to a preferred embodiment thereof, it will be understood ~hat variations and modifications can be effected within the spirit and scope of the invention.
The endotracheal intubation assist device of the invention, generally stated, comprises, a handle, a malleable metal insertion section attached to the handle, and an endoscope having a viewing end mounted within the insertion section to provide a visual image of the trachea and related body structures while the intubation is being accomplished.
In general, an endotracheal tube is a breathing conduit formed of a soft Elexible plastic medical tubing material adapted to be placed into a patient's trachea.
The endotracheal tube is open at a distal end where oxygen or other gases are directed into the lungs. The proximate end of the endotracheal tube is typically formed with a tube fitting adapted to be connected to a source of pressurized gas such as oxygen or gases for anesthesia.
The endotracheal tube may also include an inflatable bladder or balloon at a distal end which can be inflated by air pressure to contact the trachea and seal the endotracheal tube within the trachea just above the bronchi of the lungs. In use, an endotracheal tube must be centered between the two opposite bronchi (right and left) of the lungs and sealed within the trachea such that the lungs are equally supplied by gas flow through the open distal end of the endotracheal tube into the bronchi.
During the intubation process the flexible endotracheal tube must be traversed through the mouth, the nasopharynx, the larynx and the trachea of the patient and placed in a proper position within the trachea without causing damage to any body structures. The assist device of the invention functions as an aid in effecting this intubation process.
The handle and insertion section of the assist device are constructed such that a standard endotracheal tube may be placed around the insertion section and attached to the handle. The insertion section is formed of a malleable 2n3~
q material such as malleable stainless steel or silver tubing and may be bent by an operator to accommodate the shape of the trachea of the patient at hand. It is contemplated that different insertion sections may be sized for use with the different standard sizes of endotracheal tubes used for adults, children, or for smaller or larger people. The assist device may thus be customized by an operator to suit a particular patient.
As previously stated, the viewing end of the endoscope is mounted within the insertion section and provides a visual image of the trachea during the intubation process.
In use, the handle can be manipulated using this visual image for guiding the insertion section and endotracheal tube into the trachea.
The endoscope of the assist device includes a viewing end with an optic objective lens and a light carrying bundle of optical fibers located at the open distal end of the insertion tube. The endoscope assembly also includes an external control section. A detachable cable unit having fiber optic cables passed through the insertion section and the handle of the assist device connect the viewing end of the endoscope to the external control section of the endoscope. The external control section includes a light source and processing means including a video camera for processing the image from the viewing end to produce a wide angle image of the body interior on a television monitor.
The external control section also includes a receptical on a front panel for receiving the cable unit.
At the receptical an image bundle is precisely aligned to the optics and video camera inside the control unit. This recep-tical also precisely aligns the light carrying fibers in the cable unit to the light soure within the control unit.
The handle of the assist device is formed with an inner passageway wherein the insertion section is mounted.
The handle may also include an oxygen supply conduit for ': ' ` `` 2035~88 providing oxyyen to the patient during the intubation process. Additionally, a separate evacuation port is provided on the handle for passing a suction tube to aid in removing mucous, blood or other debris from the trachea during the intubation process.
In use of the assist ~evice of the invention, a standard endotracheal tube suited to a particular patient is removably attached to the handle of the assist device placed around the malleable insertion section of the assist device. The malleable insertion section may be bent by hand by the physician or attending medical personnel to a shape that is most suited for maneuvering the insertion section and endotracheal tube through that particular patient's trachea.
The insertion section with the endotracheal tube attached may thus be guided by manipulation of the handle of the assist device into the patient's mouth, across the nasopharynx, larynx, and trachea of the patient, and positioned with the open end of the endotracheal tube 2~ located in the trachea between the bronchi of the lungs.
During the intubation procedure the oxygen supply conduit attached to the handle of the assist device may temporarily supply oxygen to the lungs. Additionally evacuation of the mouth and tracheal area may also be accomplished by placing a suction tube throu~h the suction port of the handle and into the trachea.
During the intubation process, an image of the body structure being traversed by the viewing end of the endoscope is transferred and shown on the monitor 3~ television. The handle of the assist device can be guided in response to this image to place the endotracheal tube in a proper position within the trachea.
once the endotracheal tube is properly situated within the trachea between the bronchi of the lungs, the endotracheal tube may be disconnected from the handle and the insertion section may be removed from the endotracheal tube. The sealing bladder of the endotracheal tube may ~ 2~3~8 then be inflated and the endotracheal tube may be connected to a pressurized gas source such as oxygen or anesthetic gases.
From the foregoing, the advantages of this invention will become readily appar~nt, when taken in conjunction with the description of the drawing which follows.
Brie~_~escription of the Drawinq Figure 1 is a perspective view of an endotracheal tube int~bation assist ~evice constructed in accordance with the invention and shown prior to intubation of an endotracheal tube into the trachea o~ a reclining patient;
Figure 2 is a perspective view of the endotracheal tube intubation assist device shown during the intubation process;
Figure 3 is a perspective view of the endotracheal tube intuba~ion assist device shown after intubation of the patient has been completed and an inflatable bladder of the endotracheal tube is being inflated to seal the endotracheal tube within the patient's trachea;
Figure 4 is a side elevation view of the endotracheal tube intubation assist device of the invention shown with an endotracheal tube attached;
Figure 5 is a vertical cross section taken along section line 5-5 of Figure 4 showing details of the internal stru~ture of the endotracheal tube intubation assist device;
Figure 6 is a par~lal enlarged vertical cross section taken along section line 6-6 of Figure 4 showing details of the internal structure of the handle of the endotracheal tube intubation assist device of the invention;
Figure 7 is a horizontal cross section taken along section line 7-7 of Figure 5;
Figure 8 is a perspective view partially cut away of a patient showing the final placement of the endotracheal tube in the patient; and 2~3~88 Figure 9 is a side elevation view o an endotracheal tube.
Referring now to Figures 1-9, an endotracheal ~ube intubation assist device 10 construct~d in accordance with the invention is shown for use with a medical patient P.
The endotracheal tube intubation assist device 10 is intended for use in inserting and positioning an endotracheal tube 12 within the trachea T of the patient P.
As shown in Figure 9, the endotracheal tube 12 is an elongated flexible plastic tube adapted to be inserted into the trachea T of the patient P and connected to an oxygen supply conduit 13 or the like (Figure 3) for providing oxygen or other gases such as anesthetic gases to the patient P. The endotracheal tube 12 may be of a standard size and configuration and may include a tube fitting 14 at a proximate end which may be connected to the oxygen supply conduit 13 commonly found in hospitals and an~ulances. The endotracheal tube 12 is open at a distal end 16 where the 2U oxygen or other gases flow into the trachea T.
The endotracheal tube 12 may also include an inflatable bladder portion 18 which may be inflated for sealing the endotracheal tube 12 within the trachea T. The bladder portion 18 is connected to a compressed air conduit 20 having a standard tube fitting 21 at an exterior proximate end. This tube fitting 21 may be remo~ably connected to a source of compressed air 23 (Figure 3) or to an air pump ~or inflating the bladder portion 18. The inflated bladder 18 contacts the walls of the trachea T and seals the endotracheal tube 12 within the trachea T between the bronchi B (Figure 8) of the lungs RL, LL of the patient P.
As shown in Figure 8, the endotracheal tube 12 is intended to be inserted into the trachea T of a patient situated with its open distal end 16 located between the bronchi B of the lungs RL, LL to supply oxygen equally to 2 ~ g ~
the lungs RL, LL. In this position, the inflatable bladder 18 of the endotracheal tube 12 is inflated to press against the inner wall of the trachea T and seal the endotracheal tube 12 within the trachea T.
In positioning the endotracheal tube 12 within the trachea T, the endotracheal tube 12 must be maneuvered through the mouth M, nasopharynx NP, the larynx L, and the trachea T of the patient in that order. While the endotracheal tube 12 is being inserted into the trachea T
care must be taken to avoid intubation of the endotracheal tube 12 in the esophagus E (swallowing tube leading to the stomach). Additionally, care must be taken to lodge the distal end 16 of the endotracheal tube 12 between the lungs RL, LL and not in a single bronchus B.
The endotracheal tube 12 is formed of a soft plastic material and as shown in Figure 9, the distal end 16 of the endotracheal tube 12 is angled to aid in the passage of the endotracheal tube 12 through the trachea T. Additionally, the endotracheal tube 12 is formed with an opening 22 at its distal end 16 which aids in the e~ual dispersion of oxygen into the lungs ~, RL.
Referring now to Figures 1-4, the endotracheal tube intubation assist device 10 of the invention is shown.
The endotracheal tube intubation assist device 10 generally stated comprises, a handle portion 26, an insertion section 28, and an endoscope assembly 30 having a viewing end 32 mounted within the insertion section 28 to provide an image of the mouth, nasopharynx, larynx and trachea as the endotracheal tube 12 is passed therethrough. The handle portion 26 of the assist device 10 includes attachment means for attaching the insertion section 28 and endotracheal tube 12.
As shown in Figure 1, the endoscope assembly 30 includes the viewing end 32 (Figure 5) mounted within the insertion section 28 of the assist de~ice 10, and an external control section. An optic cable assembly 34 connects the control section to the viewing end 32. The 203~8~
optic cable assen~ly 34 includes a plurality of fiber optic bundles. A light carrying bundle provides a pathway from a light source to the viewing end 32. An image carrying bundle provides a pathway for an image from the viewing end 32 to the external control section of the endoscope assem~ly 30. The control section includes a processing unit 36 for processing the image from the viewing end 32, and a TV monitor 38 for presenting a wide angle ~isual image 44 of the body interior Eor the operator of the assist device 10.
In general the processing unit 36 of the control section allows the image picked up by a coherent fiber optic bundle at the viewing end 32 (Figure 5) of the endoscope assembly 30 to be innerfaced with optics which in turn deliver the image to a video camera (not shown). The video camera inside the processing unit 36 then delivers this image information electronically to the TV monitor 38.
Inside the optic cable assembly 34 are optic fibers which carry light from a light source (not shown) located inside the control unit. The light source delivers light to the fiber optic cable assembly 3~ through a connector 36.
In general, connector 36 is a coupling which fits into a mating receptacle in a front panel of the contral section of the endoscope assembly 30. This connector 36 functions to precisely aligns the image bundle to both optics and camera and precisely align the light carrying bundle to the light source.
The light source of the endoscope assembly 30 may be any high intensity light source such as xenon, mercury arc, halogen or laser light. In any case, the light source must be precisely aligned through the connector 36 to the light fibers in the optic cable asse~bly 34.
A light carrying bundle of optical fibers 40 (Figure 7) terminate at the viewing end 32 of the endoscope assembly 30. This light carrying bundle oE optical fibers 40 is connected to the light source within the control 2~3~3~
1 o section 30 to ~rovide illumina~ion of the body cavity.
Additionally the ~iewing end 32 includes an objective optic lens 34 (Figure 7) connected through the image carr~ing bundle of the optic cable assembly 34 to the video camera of the control section 30.
The previously cited U.S. Patent No . 4, 7 54,328 to Barath and U.S. Patent No . 4, 7 82, 819 to Adair disclose endoscope assemblies which include the above described components.
AS shown in Figure 2, this endoscope assembly 30 arrangement produces a wide angle visual image 44, of the interior of the body on the TV monitor 38. In use of the assist device lO, the operator of the assist device 10 such as a physician or other attending medical personnel, may use this wide angle visual image 44 in guiding and properly placing the endotracheal tube 12 within the trachea T.
With the present endoscope assembly 30, the eyepiece of a standard endoscope has been eliminated so that the medical personnel can work from a television monitor 38.
This eliminates the use of an eyepiece and makes the intubation procedure much easier for the operator (no bending over). Also, other assistants can also see at the same time and better aid in the procedure.
Referring now to Figures 4-7 the construction of the handle 26 of the intubation assist device 10 is shown. rrhe handle 26 is generally hollow and cylindrical in shape with an inner diameter and an outer diame~er. The handle 26 includes a knurled outer surface 45 to provide a non-slip grip for the operator of the assist device lO. The handle 3~ 26 may be fabricated from a corrosion resistant metal or plastic material which is durable and easy to clean. By way of example only and not by limitation, the handle 26 may be sized (i.e. 1" o.d. x l/4" i.d. x 6" long) to be easily hand manipulated by an operator.
The handle 26 also includes an interior passageway 46 (Figure 5) therethrough which functions as an attachment means for attaching the insertion section 28 of the assist 21~r3 l l device 10 to the handle 26. This attachment is accomplished by an interference fit between the mating components (i.d. of passayeway ~6 and o.d. of insertion sec,tion 28).
In addition and as shown in Figure 5, the handle 26 includes a counterbore 48 at a lower end which functions as an attachment means for attaching the endotracheal tube 12 to the handle 26. This attachment is accomplished by placing the endotracheal tube 12 around or circumjacent to the insertion section 28 and pressing the tube fitting 14 on the proximate end of the endotracheal tube 12 into the counterbore 48 of the handle 26. Again, an interference fit between the mating elements (i.d. of counterbore 48, o.d. of fitting 14) attaches the mating elements to one another. Additionally, the tube fitting 14 of the endotracheal tube 12 may be tapered or angled to wedge into the counterbore 48.
with the endotracheal tube 12 attached to the handle 26 and as shown in Figure 5, the insertion section 28 does not extend past the distal end 16 of the endotracheal tube 12. This insures that the hard external surface of the insertion section 28 does not contact the trachea or other bod~ structures during the intubation process.
The handle 26 of the assist device 10 also includes a tube fitting 50 placed through the handle 26 and in communication with the counterbore 48 of the handle 26. In use of the assist device 10, an oxygen supply conduit 51 (Figure 1) may be attached to the tube fitting 50 as an oxygen supply means for providing oxygen to the patient P
3~ during the intubation process. As is apparent from Figure 5, oxygen can flow under pressure from the oxygen supply conduit 51 through the tube fitting 50, into the counterbore 48 of the handle 26, through tube fitting 14 of the endotracheal tube 12, and through an annular space 52 which is forme~ between the inside diameter of the circumferentially mounted endotracheal tube 12 and the outside diameter of the insertion section 28 of the assist ~3~8~
device 10. During the intubation process, oxygen m~y thus flow out the open end 16 of the endotracheal tube 12 and into the trachea T of the patient P.
The handle 26 of the assist device 10 also includes a suction port 54 wherein a flexible suction tube 56 may be placed into the handle 26 through the inside diameter of the insertion section 28 and in~o the trachea T. The suction tube 56 may be utilized as an evacuation means to evacua~e blood, mucous, and other debris from the trachea T
prior to and during the intubation process. A control valve 5~ attached to the handle 26, seals the suction port 54 when it is not in use. It should be understood that the oxygen delivery system and the suction system are "add-on"
~unctions of the assist device 10 and are not essential to its operation. It is contemplated that devices will be available with and without these features.
With reference to Figure 6, the handle 26 of the assist device 10 also includes a sealing coupling 60 having a male connector 62. The coupling 6Q is attached to a proximate end of the handle 26 and provides means for opening the internal diameter 46 of the handle 26 for placing the viewing end 32 and optic cable assembly 34 through the handle 26 into the inner diameter of the insertion section 28. The optic cable assembly 34 includes a boot or female connector 64 which snaps onko the male connector 62 to seal the optic cable assembly 34. A seal member 66 seals the coupling 60 of the handle 26 to the handle 26.
In use of the assist device 10 o~ the invention, an endotracheal tube 12 sized for a particular patient P, is placed around or circumjacent to the outside diameter of the insertion section 28 o~ the assist device 10. The malleable insertion section 28 is also sized with a leng~h which suits the patient P at hand. The malleable insertion section 28 is then bent by hand by the physician or other attending medical personnel to accommodate the patient P.
`" 2~3~8~
AS an example, a suita~le ra~ius o~ cur~ature "r" is shown in Figure 3.
In bending the malleable insertion section 28 to a shape that most easily passes through the trachea T of the patient P, the operator may utilize medical experience and training, and consider such factors as the size, age, sex, and medical condition of the patient P.
The insertion section 28 is preferably formed of a malleable material such as specially treated stainless steel tubing which can be easily bent to the required shape and will maintain this customized shape during the intubation process. Once the insertion section 28 has been bent to shape as reguired, the insertion section 28 can be attached to the interior passageway 46 of the handle 26.
As previously explained, the inner diameter of the interior passageway 46 of the handle and the outside diameter of the insertion section 28 are accurately formed to provide a tight interference fit between the mating parts. The insertion section 28 thus becomes an extension of the handle 26 and the two elements become one. After the insertion section 28 has been attached to the handle 26, the endotracheal tube 12 can also be attached to the handle 26 by placing the endotracheal tube 12 around the insertion section 28 and by sliding tube fitting 14 of the endotracheal tube 12 into the counterbore 48 on the handle 26.
Prior to insertion of the insertion section 28 into the patient's mouth M, the oxygen supply conduit 51 can be attached to the tube fitting 50 on the handle 26.
Additionally, the suction tube 56 can be passed through the handle 26 and into the internal diameter of t~e insertion section 28. This arrangement of the assist device 10 prior to insertion into the patient P is clearly shown in Figure 1.
Next and as shown in Figure 2, the insertion section 28 may be guided by the operator into the patient's mouth, through the nasopharynx, larynx, and trachea and situated 2(~3~
with the open distal end of the endotracheal tube 12 positioned in the trachea above the bronchi B of the lungs RL, LL. This correct placement of the endotracheal ~ube 12 is clearly shown in Figure 8.
In passing the endotracheal tube 12 and insertion section 28 into the trachea T, a visual image 44 of the body interior is shown on the TV monitor 38. This visual image 44 is Eormed as the viewing end 44 of the endoscope assembly 30 passes through the trachea T. This visual image 44 allows the physician to manipulate the handle 26 and to guide the insertion section 28 into correct position within the trachea T, without causing harm to the patient.
During the intubation process, suction tube 56 situated at the distal end of the insertion section 28 provides evacuation of blood, mucous, and debris from the trachea T. In addition during this intubation process, oxygen may flow from the oxygen supply conduit 51 through the insertion section ~8 and into the patient's trachea T
2~ to provide oxygen to the patient's lungs RL, L~.
Once the intubation has been completed and as shown in Figure 3, tube fitting 14 at the proximate end of the endotracheal tube 12 can be removed from the handle 26.
The handle 20 can then be manipulated to pull the insertion section 28 out of the patient's mouth. The endotracheal tube 12 can then be coupled to a source of compressed oxygen 13 for providing oxygen to the patient, or can be attached to a standard anesthesia machine for delivery of anesthetic gases.
Once the endotracheal tube 12 is properly placed within the trachea T, the inflatable bladder 18 of the endotracheal tube 12 can be inflated by air pressure from compressed air conduit 23. This seals the endotracheal tube 12 within the trachea T.
Thus the invention provides an assist device in which an endoscope can be utilized as an aid in performing an endotracheal tube intubation. Furthermore, the malleable 203~
insertion sec~ion of the ass.ist device can be bent by the operator as required, to provide a custom fit for the patient at hand.
. Although the invention has been described in detail with particular reference to a preferred embodiment thereof, it will be understood ~hat variations and modifications can be effected within the spirit and scope of the invention.
Claims (20)
1. An endotracheal tube intubation assist device for placing an endotracheal tube within a trachea comprising;
a handle;
an endoscope assembly having a viewing end and processing means for processing a visual image from the viewing end, and viewing means for viewing the visual image;
an insertion section attached to said handle and shaped to be inserted into the trachea and having the viewing end of said endoscope assembly mounted at a distal end; and attachment means attached to said handle for removably attaching the endotracheal tube to said handle in a position circumjacent to said insertion section; so that the endotracheal tube may be placed within the trachea utilizing the visual image from said endoscope assembly as an aid for manipulating said handle and said insertion section.
a handle;
an endoscope assembly having a viewing end and processing means for processing a visual image from the viewing end, and viewing means for viewing the visual image;
an insertion section attached to said handle and shaped to be inserted into the trachea and having the viewing end of said endoscope assembly mounted at a distal end; and attachment means attached to said handle for removably attaching the endotracheal tube to said handle in a position circumjacent to said insertion section; so that the endotracheal tube may be placed within the trachea utilizing the visual image from said endoscope assembly as an aid for manipulating said handle and said insertion section.
2. The assist device as claimed in claim 1 and wherein;
said insertion section is formed of a malleable material.
said insertion section is formed of a malleable material.
3. The assist device as claimed in claim 1 and wherein:
said insertion section is a malleable tube which may be press fitted into a passageway through said handle.
said insertion section is a malleable tube which may be press fitted into a passageway through said handle.
4. The assist device as claimed in claim 1 and further comprising:
oxygen supply means attached to said handle for supplying oxygen to the endotracheal tube during the intubation process.
oxygen supply means attached to said handle for supplying oxygen to the endotracheal tube during the intubation process.
5. The assist device as claimed in claim 4 and further comprising:
evacuation means attached to said handle for evacuating the trachea during the intubation process.
evacuation means attached to said handle for evacuating the trachea during the intubation process.
6. The assist device as claimed in claim 5 and wherein;
said endoscope assembly includes a TV monitor for presenting a wide angle image.
said endoscope assembly includes a TV monitor for presenting a wide angle image.
7. An endotracheal tube intubation assist device for placing an endotracheal tube within a patient's trachea, said assist device comprising;
a handle having a passageway therethrough;
a malleable insertion section having an open distal end and formed of malleable tubing which may be removably attached to the passageway through said handle;
attachment means attached to said handle for removably attaching the endotracheal tube to said handle with said insertion section placed through the endotracheal tube;
an endoscope assembly having a viewing end located at the open distal end of said insertion section and including an optic lens, a light carrying bundle of optical fibers, processing means including a light source and a video camera for processing an image from the optic lens, an external viewing monitor for displaying a visual image from the viewing end, and an optic cable assembly placed through said insertion section to connect the light carrying bundle of optic fibers, optic lens and processing means; so that said insertion section and the endotracheal tube may be placed into the patient's trachea and said handle may be manipulated to insert the endotracheal tube within the trachea using a visual image from the endoscope as a guide.
a handle having a passageway therethrough;
a malleable insertion section having an open distal end and formed of malleable tubing which may be removably attached to the passageway through said handle;
attachment means attached to said handle for removably attaching the endotracheal tube to said handle with said insertion section placed through the endotracheal tube;
an endoscope assembly having a viewing end located at the open distal end of said insertion section and including an optic lens, a light carrying bundle of optical fibers, processing means including a light source and a video camera for processing an image from the optic lens, an external viewing monitor for displaying a visual image from the viewing end, and an optic cable assembly placed through said insertion section to connect the light carrying bundle of optic fibers, optic lens and processing means; so that said insertion section and the endotracheal tube may be placed into the patient's trachea and said handle may be manipulated to insert the endotracheal tube within the trachea using a visual image from the endoscope as a guide.
8. The assist device as claimed in claim 7 and wherein:
said attachment means comprises a tube fitting attached to the endotracheal tube which may be pressed into a counterbore opening in said handle.
said attachment means comprises a tube fitting attached to the endotracheal tube which may be pressed into a counterbore opening in said handle.
9. The assist device as claimed in claim 8 and further comprising:
oxygen supply means attached to said handle for providing oxygen to the endotracheal tube during the intubation process.
oxygen supply means attached to said handle for providing oxygen to the endotracheal tube during the intubation process.
10. The assist device as claimed in claim 9 and further comprising;
evacuation means including a suction port through said handle for placing a suction tube through said insertion section for evacuating the trachea during intubation.
evacuation means including a suction port through said handle for placing a suction tube through said insertion section for evacuating the trachea during intubation.
11. An endotracheal tube intubation assist device for placing a flexible endotracheal tube having an open distal end and a proximate end, within a patient's trachea, said assist device comprising:
a generally cylindrical shaped handle formed with an outside diameter and a central passageway therethrough and having a counterbored opening at a distal end for receiving the proximate end of the endotracheal tube for attaching the endotracheal tube to the handle;
an elongated insertion section formed of a malleable tubing sized to be placed through the endotracheal tube and press fitted into the central passageway of said handle and having an open distal end;
an endoscope assembly having an objective optic lens and a light carrying bundle of optical fibers mounted at the open distal end of said insertion section, an optic cable assembly attached to the light carrying bundle of optical fibers and the optic lens, processing means attached to the optic cable assembly and including a light source connected to the light carrying bundle of optical fibers and a video camera for processing an image from the objective optic lens, and a TV monitor connected to the processing means for displaying a visual image; so that said insertion section may be shaped to suit the patient and the insertion section and endotracheal tube may be placed within the patient's trachea using the visual image on the TV monitor as an aid for an operator in manipulating the handle to guide the endotracheal tube through the trachea.
a generally cylindrical shaped handle formed with an outside diameter and a central passageway therethrough and having a counterbored opening at a distal end for receiving the proximate end of the endotracheal tube for attaching the endotracheal tube to the handle;
an elongated insertion section formed of a malleable tubing sized to be placed through the endotracheal tube and press fitted into the central passageway of said handle and having an open distal end;
an endoscope assembly having an objective optic lens and a light carrying bundle of optical fibers mounted at the open distal end of said insertion section, an optic cable assembly attached to the light carrying bundle of optical fibers and the optic lens, processing means attached to the optic cable assembly and including a light source connected to the light carrying bundle of optical fibers and a video camera for processing an image from the objective optic lens, and a TV monitor connected to the processing means for displaying a visual image; so that said insertion section may be shaped to suit the patient and the insertion section and endotracheal tube may be placed within the patient's trachea using the visual image on the TV monitor as an aid for an operator in manipulating the handle to guide the endotracheal tube through the trachea.
12. The assist device as claimed in claim 11 and further comprising:
oxygen supply means for supplying oxygen to the endotracheal tube during the intubation process.
oxygen supply means for supplying oxygen to the endotracheal tube during the intubation process.
13. The assist device as claimed in claim 12 and wherein said oxygen supply means comprises:
a tube fitting in communication with the counterbore of said handle which may be coupled to an oxygen supply conduit to provide oxygen flow through the endotracheal tube.
a tube fitting in communication with the counterbore of said handle which may be coupled to an oxygen supply conduit to provide oxygen flow through the endotracheal tube.
14. The assist device as claimed in claim 12 and further comprising:
evacuation means for evacuating the trachea during the intubation process.
evacuation means for evacuating the trachea during the intubation process.
15. The assist device as claimed in claim 14 and wherein:
said evacuation means comprises a valved port on said handle through which a suction tube may be passed into said insertion section.
said evacuation means comprises a valved port on said handle through which a suction tube may be passed into said insertion section.
16. The assist device as claimed in claim 12 and wherein:
the endotracheal tube is formed with a tube fitting attached to a proximate end which may be pressed into the counterbore on said handle.
the endotracheal tube is formed with a tube fitting attached to a proximate end which may be pressed into the counterbore on said handle.
17. The assist device as claimed in claim 12 and wherein:
a proximate end of said handle and the optic cable assembly are sealed by a seal member attached to said handle.
a proximate end of said handle and the optic cable assembly are sealed by a seal member attached to said handle.
18. The assist device as claimed in claim 12 and wherein:
said insertion section is formed of malleable stainless steel tubing.
said insertion section is formed of malleable stainless steel tubing.
19. The assist device as claimed in claim 18 and wherein:
said handle has a knurled outer surface.
said handle has a knurled outer surface.
20. The assist device as claimed in claim 18 and wherein:
different malleable insertion sections may be attached to said handle to accommodate different sized endotracheal tubes.
different malleable insertion sections may be attached to said handle to accommodate different sized endotracheal tubes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47983390A | 1990-02-14 | 1990-02-14 | |
| US479,833 | 1990-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2035488A1 true CA2035488A1 (en) | 1991-08-15 |
Family
ID=23905631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002035488A Abandoned CA2035488A1 (en) | 1990-02-14 | 1991-02-01 | Endotracheal tube intubation assist device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5329940A (en) |
| EP (1) | EP0515487A1 (en) |
| JP (1) | JPH06504209A (en) |
| CA (1) | CA2035488A1 (en) |
| WO (1) | WO1991012044A1 (en) |
Families Citing this family (101)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5058577A (en) * | 1989-05-09 | 1991-10-22 | Gary Six | Flexible tip stylet for use with an endotracheal intubation device |
| US5435991A (en) * | 1991-08-09 | 1995-07-25 | Nycomed Innovation Ab | Use of persistent heterocyclic free-radicals in magnetic resonance imaging |
| US5287848A (en) * | 1991-09-30 | 1994-02-22 | Anthony Cubb | Easy intubator |
| US5885248A (en) * | 1994-02-22 | 1999-03-23 | Wolf Tory Medical, Inc. | Intubation detection system with transducer based indicator |
| US5591130A (en) * | 1994-02-22 | 1997-01-07 | Wolfe Troy Medical, Inc. | Esophageal intubation detector with indicator |
| US5842973A (en) * | 1994-05-17 | 1998-12-01 | Bullard; James Roger | Nasal intubation apparatus |
| FR2723527B1 (en) * | 1994-08-09 | 1996-12-27 | Dumon Jean Francois | MODELABLE ENDOSCOPE, AND METHOD AND DEVICE FOR PLACING A PIPE IN A CAVITY, APPLYING THIS ENDOSCOPE. |
| US5595172A (en) * | 1994-08-12 | 1997-01-21 | Reese; John L. | Suction stylet for use with an endotracheal tube |
| JP3365870B2 (en) * | 1994-08-30 | 2003-01-14 | 株式会社町田製作所 | Airway securing device |
| DE29507905U1 (en) * | 1995-05-12 | 1996-09-12 | Werner Wolfgang Dr Med | Endoscope, especially for intubation |
| US5676635A (en) * | 1995-08-30 | 1997-10-14 | Levin; Bruce | Instrument for insertion of an endotracheal tube |
| US6196225B1 (en) | 1995-10-23 | 2001-03-06 | Dean O. Allgeyer | Endotracheal tube for use during fiberoptic assisted intubation and with other intubating stylets |
| US6860264B2 (en) * | 1996-02-26 | 2005-03-01 | Evergreen Medical Incorporated | Method and apparatus for endotracheal intubation using a light wand and curved guide |
| US20050139220A1 (en) * | 1996-02-26 | 2005-06-30 | Evergreen Medical Incorporated | Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube |
| US5725478A (en) * | 1996-03-14 | 1998-03-10 | Saad; Saad A. | Methods and apparatus for providing suction and/or irrigation in a rigid endoscope while maintaining visual contact with a target area through the endoscope |
| FR2746626B1 (en) * | 1996-03-26 | 1998-05-15 | Desgardin Jean Michel | LARYNGOSCOPE PROVIDED WITH A VAPORIZATION KIT FOR A LOCAL ANESTHETICS |
| US5755056A (en) * | 1996-07-15 | 1998-05-26 | Remington Arms Company, Inc. | Electronic firearm and process for controlling an electronic firearm |
| US6115523A (en) * | 1996-10-04 | 2000-09-05 | University Of Florida | Plastic optical fiber airway imaging system |
| US20040220451A1 (en) * | 1996-10-04 | 2004-11-04 | Dietrich Gravenstein | Imaging scope |
| US20050182297A1 (en) * | 1996-10-04 | 2005-08-18 | Dietrich Gravenstein | Imaging scope |
| US6322498B1 (en) * | 1996-10-04 | 2001-11-27 | University Of Florida | Imaging scope |
| AU4449097A (en) * | 1996-10-09 | 1998-05-05 | Markus Weiss | Intubation mandrin with a guide bore hole for accommodating an image-transmitting optical system |
| US6427686B2 (en) * | 1996-10-16 | 2002-08-06 | Augustine Medical, Inc. | Airway device with provision for coupling to an introducer |
| US6830049B2 (en) * | 1996-10-16 | 2004-12-14 | Arizant Healthcare Inc. | Airway device with provision for coupling to an introducer |
| US5941816A (en) * | 1997-04-15 | 1999-08-24 | Clarus Medical Systems, Inc. | Viewing system with adapter handle for medical breathing tubes |
| US6146402A (en) * | 1997-06-09 | 2000-11-14 | Munoz; Cayetano S. | Endotracheal tube guide introducer and method of intubation |
| US6086528A (en) * | 1997-09-11 | 2000-07-11 | Adair; Edwin L. | Surgical devices with removable imaging capability and methods of employing same |
| US6211904B1 (en) * | 1997-09-11 | 2001-04-03 | Edwin L. Adair | Surgical devices incorporating reduced area imaging devices |
| US20110034769A1 (en) | 1997-10-06 | 2011-02-10 | Micro-Imaging Solutions Llc | Reduced area imaging device incorporated within wireless endoscopic devices |
| US5876330A (en) * | 1997-10-14 | 1999-03-02 | Circon Corporation | Endoscope with semi-rigid shaft and malleable tip and method of manufacture |
| US5921917A (en) * | 1997-10-20 | 1999-07-13 | Clarus Medical Systems, Inc. | Hand-held viewing system with removable sheath |
| US5913816A (en) * | 1997-10-31 | 1999-06-22 | Imagyn Medical Technologies, Inc. | Intubation device and method |
| US6142144A (en) * | 1997-12-01 | 2000-11-07 | Pacey; John A. | Intubation instrument |
| US6655377B2 (en) | 1997-12-01 | 2003-12-02 | Saturn Biomedical Systems Inc. | Intubation instrument |
| US6543447B2 (en) | 1997-12-01 | 2003-04-08 | Saturn Biomedical Systems Inc | Intubation instrument |
| US6123666A (en) * | 1998-04-29 | 2000-09-26 | Vanderbilt University | Laryngoscope blade with fiberoptic scope for remote viewing and method for teaching the proper insertion of a laryngoscope blade into the airway of a patient |
| DE50008326D1 (en) | 1999-02-12 | 2004-11-25 | Storz Karl Gmbh & Co | DEVICE FOR INSERTING AN INTUBATION TUBE INTO THE TRACHEA |
| US6189533B1 (en) * | 1999-08-04 | 2001-02-20 | James S. Simon | Endotracheal intubation device |
| GB2355201A (en) * | 1999-10-11 | 2001-04-18 | Hussain Karim | Endotracheal tube and introducer |
| US6340344B1 (en) * | 2000-07-18 | 2002-01-22 | Evergreen Medical Incorporated | Endoscope with a removable suction tube |
| US7552729B2 (en) * | 2001-03-05 | 2009-06-30 | The United States Of America As Represented By The Secretary Of The Army | Intubation device and method |
| DE20105206U1 (en) * | 2001-03-22 | 2001-06-21 | Storz Karl Gmbh & Co Kg | Endoscopic intubation system |
| US6539942B2 (en) | 2001-04-19 | 2003-04-01 | Richard Schwartz | Endotracheal intubation device |
| US7289705B2 (en) * | 2001-07-26 | 2007-10-30 | Ludlow Company Lp | Cable having signal conductors surrounding optically transmissive core remote imaging system |
| US6614969B2 (en) * | 2001-07-26 | 2003-09-02 | The Ludlow Company, Lp | High speed electronic remote medical imaging system and method |
| US7052456B2 (en) * | 2003-04-16 | 2006-05-30 | Simon James S | Airway products having LEDs |
| US20040215061A1 (en) * | 2003-04-28 | 2004-10-28 | Zebadiah Kimmel | Visualization stylet for endotracheal intubation |
| US7273050B2 (en) * | 2004-05-03 | 2007-09-25 | Huafeng Wei | Jet endotracheal device and its use in intubation |
| US20060122460A1 (en) * | 2004-12-07 | 2006-06-08 | Henry Kamali | Airway management |
| US11883029B2 (en) | 2005-01-20 | 2024-01-30 | Pulmonx Corporation | Methods and devices for passive residual lung volume reduction and functional lung volume expansion |
| US8496006B2 (en) * | 2005-01-20 | 2013-07-30 | Pulmonx Corporation | Methods and devices for passive residual lung volume reduction and functional lung volume expansion |
| US20080228137A1 (en) * | 2007-03-12 | 2008-09-18 | Pulmonx | Methods and devices for passive residual lung volume reduction and functional lung volume expansion |
| US20070049794A1 (en) * | 2005-09-01 | 2007-03-01 | Ezc Medical Llc | Visualization stylet for medical device applications having self-contained power source |
| US20080029100A1 (en) * | 2005-12-16 | 2008-02-07 | Ezc Medical Llc | Visualization laryngeal airway apparatus and methods of use |
| US20070215162A1 (en) * | 2005-12-16 | 2007-09-20 | Ezc Medical Llc | Visualization airway apparatus and methods for selective lung ventilation |
| US20070162095A1 (en) * | 2006-01-06 | 2007-07-12 | Ezc Medical Llc | Modular visualization stylet apparatus and methods of use |
| US20070175482A1 (en) * | 2006-01-27 | 2007-08-02 | Ezc Medical Llc | Apparatus for introducing an airway tube into the trachea having visualization capability and methods of use |
| US20080177142A1 (en) * | 2007-01-22 | 2008-07-24 | Boston Scientific Scimed, Inc. | Endoscope with dilating insertion tube |
| US20080216840A1 (en) * | 2007-03-06 | 2008-09-11 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Imaging via the airway |
| US20080230056A1 (en) * | 2007-03-23 | 2008-09-25 | Benje Boedeker | Intubation guide |
| US20080312507A1 (en) * | 2007-06-16 | 2008-12-18 | Taehoon Kim | Apparatus and method for imaging-assisted intubation using pre-existing practitioner skill set |
| US8495999B2 (en) | 2007-08-04 | 2013-07-30 | John Adam Law | Airway intubation device |
| US20090024018A1 (en) * | 2007-08-07 | 2009-01-22 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Anatomical imaging system |
| US20080216826A1 (en) * | 2007-08-07 | 2008-09-11 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Airway imaging system |
| US20090050146A1 (en) * | 2007-08-23 | 2009-02-26 | The Cleveland Clinic Foundation | Apparatus and method for intubating an airway of a patient |
| US20090209826A1 (en) * | 2008-01-09 | 2009-08-20 | Ezc Medical Llc | Intubation systems and methods |
| WO2011126812A1 (en) | 2010-03-29 | 2011-10-13 | Endoclear, Llc | Airway cleaning and visualization |
| US8468637B2 (en) | 2009-02-06 | 2013-06-25 | Endoclear Llc | Mechanically-actuated endotracheal tube cleaning device |
| EP2393538B1 (en) | 2009-02-06 | 2017-10-18 | Endoclear LLC | Devices for cleaning endotracheal tubes |
| US8382665B1 (en) | 2009-02-12 | 2013-02-26 | Alfred Fam | Endotracheal tube placement system and method |
| GB0909168D0 (en) * | 2009-05-28 | 2009-07-08 | Smiths Medical Int Ltd | Medico-surgical apparatus |
| TW201103486A (en) * | 2009-07-20 | 2011-02-01 | Medical Intubation Tech Corp | Endoscope device |
| US9179831B2 (en) | 2009-11-30 | 2015-11-10 | King Systems Corporation | Visualization instrument |
| US8978657B2 (en) | 2010-07-29 | 2015-03-17 | Covidien Lp | Dual-lumen tracheal tube with shaped lumen divider |
| CA2941578A1 (en) | 2010-09-08 | 2012-03-15 | Covidien Lp | Catheter with imaging assembly |
| US8998798B2 (en) | 2010-12-29 | 2015-04-07 | Covidien Lp | Multi-lumen tracheal tube with visualization device |
| US9211060B2 (en) | 2011-04-05 | 2015-12-15 | Covidien Lp | Visualization device and holder for use with a tracheal tube |
| US8887730B2 (en) | 2011-05-26 | 2014-11-18 | Covidien Lp | Dual-lumen tracheal tube with assembly portion |
| US9788755B2 (en) | 2011-05-26 | 2017-10-17 | Covidien Lp | Illumination systems and devices for tracheal tubes |
| CA2841704C (en) | 2011-07-11 | 2019-06-04 | Elias Daher | Endobronchial tube |
| US9155854B2 (en) | 2011-08-31 | 2015-10-13 | Covidien Lp | Tracheal tube with visualization device and integrated flushing system |
| WO2013063520A1 (en) | 2011-10-27 | 2013-05-02 | Endoclear, Llc | Endotracheal tube coupling adapters |
| EP2790764A4 (en) | 2011-12-15 | 2015-06-03 | Univ Leland Stanford Junior | Devices and methods for preventing tracheal aspiration |
| WO2013102905A1 (en) | 2012-01-03 | 2013-07-11 | Hospitech Respiration Ltd. | System and method for controlling and monitoring flow in an endotracheal tube |
| US9517184B2 (en) | 2012-09-07 | 2016-12-13 | Covidien Lp | Feeding tube with insufflation device and related methods therefor |
| USD716841S1 (en) | 2012-09-07 | 2014-11-04 | Covidien Lp | Display screen with annotate file icon |
| USD717340S1 (en) | 2012-09-07 | 2014-11-11 | Covidien Lp | Display screen with enteral feeding icon |
| US9198835B2 (en) | 2012-09-07 | 2015-12-01 | Covidien Lp | Catheter with imaging assembly with placement aid and related methods therefor |
| USD735343S1 (en) | 2012-09-07 | 2015-07-28 | Covidien Lp | Console |
| US20140135583A1 (en) * | 2012-11-14 | 2014-05-15 | Manuel V. Moreno | Intubation Tube |
| WO2014089028A1 (en) | 2012-12-04 | 2014-06-12 | Endoclear Llc | Suction cleaning devices, systems and methods |
| EP2754384B1 (en) | 2013-01-10 | 2018-07-11 | Ambu A/S | Endobronchial tube with integrated image sensor and cleaning nozzle arrangement |
| US9662466B2 (en) | 2013-03-15 | 2017-05-30 | Sanovas, Inc. | Imaging stylet for intubation |
| WO2015069804A1 (en) | 2013-11-05 | 2015-05-14 | Ciel Medical, Inc. | Devices and methods for airway measurement |
| US20150290412A1 (en) * | 2014-04-10 | 2015-10-15 | Shahriar Heydari | Airway Opening Device |
| WO2015187583A1 (en) | 2014-06-03 | 2015-12-10 | Endoclear Llc | Cleaning devices, systems and methods |
| US9833587B2 (en) | 2014-10-23 | 2017-12-05 | Cookgas, Llc | Camera tube with guide surface for intubation stylet and method of use |
| CA3030312A1 (en) * | 2016-07-09 | 2018-01-18 | Christopher Hill | Connector device |
| CN111936191A (en) * | 2018-01-12 | 2020-11-13 | 声带通有限责任公司 | Device and method for guiding an endotracheal tube |
| US20230014924A1 (en) * | 2019-08-06 | 2023-01-19 | Chris Salvino | Endotracheal tube relief valve |
| US11826507B2 (en) * | 2019-08-06 | 2023-11-28 | SharpMed, LLC. | Endotracheal tube cap with pressure relief valve |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2912982A (en) * | 1958-06-04 | 1959-11-17 | Arthur J Barsky | Endotracheal tube adapter |
| US3677262A (en) * | 1970-07-23 | 1972-07-18 | Henry J Zukowski | Surgical instrument illuminating endotracheal tube inserter |
| US3776222A (en) * | 1971-12-23 | 1973-12-04 | Lurosso A | Fiber optic entubator and method of entubation of the trachea through the nasopharynx |
| US4041936A (en) * | 1975-04-23 | 1977-08-16 | Medical Engineering Corporation | Bronchoscopy tube |
| JPS5581317A (en) * | 1978-12-15 | 1980-06-19 | Olympus Optical Co Ltd | Endscope for catheter |
| JPS5812637A (en) * | 1981-07-13 | 1983-01-24 | オリンパス光学工業株式会社 | Apparatus for erecting treating tool of endoscope |
| US4758222A (en) * | 1985-05-03 | 1988-07-19 | Mccoy William C | Steerable and aimable catheter |
| US4754328A (en) * | 1984-01-03 | 1988-06-28 | Medical Dynamics, Inc. | Laser endoscope |
| US4714075A (en) * | 1986-02-10 | 1987-12-22 | Welch Allyn, Inc. | Biopsy channel for endoscope |
| US4688554A (en) * | 1986-04-10 | 1987-08-25 | American Hospital Supply Corp. | Directing cannula for an optical diagnostic system |
| JPS62266024A (en) * | 1986-05-14 | 1987-11-18 | オリンパス光学工業株式会社 | Endoscope video system |
| US4736733A (en) * | 1987-02-25 | 1988-04-12 | Medical Dynamics, Inc. | Endoscope with removable eyepiece |
| US4782819A (en) * | 1987-02-25 | 1988-11-08 | Adair Edwin Lloyd | Optical catheter |
| US4905669A (en) * | 1987-09-28 | 1990-03-06 | James R. Bullard | Laryngoscope |
| US4846153A (en) * | 1988-06-10 | 1989-07-11 | George Berci | Intubating video endoscope |
| US4949716A (en) * | 1988-10-31 | 1990-08-21 | Medical Devices, Inc. | Nasal intubation adjunct |
| US4947896A (en) * | 1988-11-04 | 1990-08-14 | Bartlett Robert L | Laryngoscope |
| GB8828778D0 (en) * | 1988-12-09 | 1989-01-18 | Warne Surgical Products Ltd | Improvements in & relating to catheter tubes |
| US4982729A (en) * | 1989-02-10 | 1991-01-08 | Wu Tzu Lang | Rigid fiberoptic intubating laryngoscope |
-
1991
- 1991-02-01 JP JP3504902A patent/JPH06504209A/en active Pending
- 1991-02-01 WO PCT/US1991/000700 patent/WO1991012044A1/en not_active Application Discontinuation
- 1991-02-01 CA CA002035488A patent/CA2035488A1/en not_active Abandoned
- 1991-02-01 EP EP91904437A patent/EP0515487A1/en not_active Ceased
-
1992
- 1992-01-16 US US07/821,788 patent/US5329940A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0515487A1 (en) | 1992-12-02 |
| JPH06504209A (en) | 1994-05-19 |
| US5329940A (en) | 1994-07-19 |
| WO1991012044A1 (en) | 1991-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5329940A (en) | Endotracheal tube intubation assist device | |
| US5941816A (en) | Viewing system with adapter handle for medical breathing tubes | |
| US4846153A (en) | Intubating video endoscope | |
| US5682880A (en) | Laryngeal-mask airway with guide element, stiffener, and fiberoptic access | |
| US5803898A (en) | Intubation system | |
| US6432042B1 (en) | Intubation system | |
| US5551946A (en) | Multifunctional intubating guide stylet and laryngoscope | |
| US5913816A (en) | Intubation device and method | |
| CA2143639C (en) | Sterilizable endoscope with separable disposable tube assembly | |
| EP1582141B1 (en) | Balloon control apparatus | |
| US5431152A (en) | Oral fiberoptic intubating apparatus and method | |
| US5676635A (en) | Instrument for insertion of an endotracheal tube | |
| EP0768903B1 (en) | A fibreoptic intubating laryngeal mask airway | |
| US6146402A (en) | Endotracheal tube guide introducer and method of intubation | |
| US7946981B1 (en) | Two-piece video laryngoscope | |
| EP1738789B1 (en) | Endotracheal video device | |
| US5921917A (en) | Hand-held viewing system with removable sheath | |
| US6539942B2 (en) | Endotracheal intubation device | |
| US20050090712A1 (en) | Res-Q-Scope | |
| EP0465942A1 (en) | Intubating stylet for a laryngoscope | |
| US20100010307A1 (en) | Intubation tube | |
| EP2754384A2 (en) | An endobronchial tube with integrated image sensor and a cleaning nozzle arrangement | |
| US20050192481A1 (en) | Laryngoscope and camera coupling | |
| US20100224187A1 (en) | Apparatus and methods facilitating atraumatic intubation | |
| CA2906630C (en) | Endotracheal intubation devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |