US3683908A - Apparatus for sealing the oesophagus and providing artificial respiration - Google Patents

Apparatus for sealing the oesophagus and providing artificial respiration Download PDF

Info

Publication number
US3683908A
US3683908A US867697A US3683908DA US3683908A US 3683908 A US3683908 A US 3683908A US 867697 A US867697 A US 867697A US 3683908D A US3683908D A US 3683908DA US 3683908 A US3683908 A US 3683908A
Authority
US
United States
Prior art keywords
apparatus
member
outer end
tube
oesophagus
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.)
Expired - Lifetime
Application number
US867697A
Inventor
Tantrimudalige Anthony Michael
Edward Henry Lambert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TANTRIMUDALIGE ANTHONY DON MIC
Original Assignee
TANTRIMUDALIGE ANTHONY DON MIC
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 TANTRIMUDALIGE ANTHONY DON MIC filed Critical TANTRIMUDALIGE ANTHONY DON MIC
Priority to US86769769A priority Critical
Application granted granted Critical
Publication of US3683908A publication Critical patent/US3683908A/en
Anticipated expiration legal-status Critical
Assigned to INTERNATIONALE NEDERLANDEN (U.S.) CAPITAL CORPORATION reassignment INTERNATIONALE NEDERLANDEN (U.S.) CAPITAL CORPORATION COLLATERAL ASSIGNMENT AND SECURITY AGREEMENT (PATE Assignors: BRUNSWICK BIOMEDICAL CORPORATION
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0402Special features for tracheal tubes not otherwise provided for
    • A61M16/0409Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0402Special features for tracheal tubes not otherwise provided for
    • A61M16/0415Special features for tracheal tubes not otherwise provided for with access means to the stomach
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0475Tracheal tubes having openings in the tube
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0488Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049Mouthpieces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0488Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049Mouthpieces
    • A61M16/0493Mouthpieces with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block

Abstract

Apparatus for use in artificial respiration comprising an elongated member designed to be inserted into the oesophagus and having an expandable inflatable element which can be operated externally after insertion in order to close the oesophagus to prevent inflation or aspiration of the stomach. The apparatus preferably includes a tubular airway in combination with the elongated member, with discharge openings to allow air to be introduced into the patient''s respiratory passages and lungs. The expandible element may be mechanically operated.

Description

United Statesv Patent Michael et al.

APPARATUS FOR SEALING THE OESOPHAGUS AND PROVIDING ARTIFICIAL RESPIRATION lnventors: Tantrimudalige Anthony Don Michael, SO. 1044; Edward Henry Lambert, SQ. 1697, both of Abadan, Iran Filed: Oct. 20, 1969 Appl. No.: 867,697

US. Cl ..l28/l45.7, 128/351 Int. Cl. ..A6lm 16/00 Field of Search ..l28/l45, 145.5, 145.7, 351,

References Cited UNl'IED STATES PATENTS 5/1967 Riisch et al. ..128/35l 10/1968 Galleher ..l28/351 Doherty ..l28/351 [151 3,683,908 1 Aug. 15, 1972 FOREIGN PATENTS OR APPLICATIONS 1,040,425 8/ 1966 Great Britain 128/349 B Primary Examiner-Richard A. Gaudet Assistant Examiner-G. F. Dunne Attorney-George L. Greenfield ABSTRACT Apparatus for use in artificial respiration comprising an elongated member designed to be inserted into the oesophagus and having an expandable inflatable element which can be operated externally after insertion in order to close the oesophagus to prevent inflation or aspiration of the stomach. The apparatus preferably includes a tubular airway in combination with the elongated member, with discharge openings to allow air to be introduced into the patients respiratory passages and lungs. The expandible element may be mechanically operated.

13 Claims, 5 Drawing Figures PATENTEDAUB 1 5 I972 SHEET 1 [IF 2 INVENTOR T.A D. MICHAEL EH. LAMBE 6-r//aw,/M;

ATTORNEY PATENTEDAUB 1 5 i972 sum 2 or 2 INVENTOR T. A.D. MIcHAEL 5'. H1. LAMEERT P Al 16mm? APPARATUS FOR SEALING THE OESOPHAGUS AND PROVIDING ARTIFICIAL RESPIRATION This invention is concerned primarily with artificial respiration or resuscitation. The older techniques of artificial respiration have now been largely replaced by mouth-to-mouth" respiration, using either the direct method or kiss of life in which the medical attendant exhales directly into the mouth of the person to be revived, or the indirect method in which air is exhaled into an airway usually in the form of a short plastics tube inserted into the mouth of the patient.

Resuscitation by expired air has certain advantages over the older techniques but also has a number of draw-backs. It is to some extent aesthetically unpleasant, a substantial part of the respirator effort is wasted in inflating the stomach, and there is a serious risk that the stomach contents will be aspirated through the oesophagus into the mouth and throat passages, with consequent gastric spillage into the respiratory passages. If the latter occurs complete failure of the procedure may follow.

The only alternative method availableat the present time is to insert an endotracheal tube, but this requires an anaesthetist with hospital facilities. Obviously resuscitation is needed for persons who drown, are asphyxiated, or have sudden heart arrest, and these events may occur at any time or place, often where a hospital is quite inaccessible.

Accordingly it is one object of the invention to pro vide an improved apparatus, primarily for resuscitation which will overcome some of the disadvantages of existing equipment.

Broadly, from one aspect, the invention consists in apparatus for use in resuscitation, and/or for other medical purposes, comprising an elongated member or tube designed to be inserted into an internal passage in the body, for example the oesophagus, an expandable element carried by the member or tube or attached thereto, at a point displaced from its outer end, means for causing the element to expand so as to form an effective seal with the walls of the passage, and a duct, which may be the elongated member or tube itself, providing communication between an inlet adjacent the outer end of the tube, and a discharge port, on the side of the expandable element adjacent to or remote from the outer end of the elongated member.

Preferably the expandable element comprises an inflatable member, and conveniently the expandable element is operated in response to the supply of fluid through an auxiliary conduit extending along the tube. The inflatable member may be connected via an auxiliary conduit within the tube to an external inflator unit, and preferably the .inflator unit includes an expandable pressure indicator member.

According to a preferred feature of the invention the duct extends from the outer end of the tube to one or more discharge ports between this outer end and the expandable element. In this case the duct can be used as an air resuscitation tube to supply air to the respira tory passages of the patient.-

Alternatively or in addition the apparatus may include a duct extending along the length of the tube, through the expandable element, to a discharge port on the remote side thereof. Thus when the expandable element is inserted into and seals the oesophagus, this duct can be used to wash out or void the stomach contents, without risk of gastric spillage into the respirato passages. l I

In some forms of the apparatus there may be provided both a resuscitation tube terminating in ports on one side of the expandable element, and a stomach washing tube, or guide, terminating on the opposite side of this element.

In any case the tube is preferably curved, to facilitate insertion through the mouth into the oesophagus, and the outer end of the tube may be connected or connectable to a mouthpiece or tube. The apparatus may also include a mouth shield, and/or bite tube, at the outer end of the tube.

The invention also consists in a method of applying artificial respiration in which an expandable element attached to an elongated member is introduced into the patients oesophagus, and caused to expand therein by means of an externally operated remote actuator, to close the oesophagus passage, and air for resuscitation is supplied through the patients mouth to the respiratory passages.

From yet another aspect the invention consists in a method of washing out, dosing or voiding the stomach, in which an expandable blocking element is introduced into the oesophagus, and caused to expand therein to form a seal, by means of a remotely operated actuator, and fluids are passed into or out of the stomach by means of a tube extending through the blocking element.

The invention may be performed in various ways and two specific embodiments, with some possible modifications, will now be described by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a somewhat diagrammatic perspective view, partly in section, of one form of apparatus according to the invention, designed for artificial respiration only,

FIG. 2 is a similar illustration of another embodiment having facilities both for artificial respiration and for stomach washing orevacuation,

FIG. 3 is a fragmentary sectional view on an enlarged scale through an alternative form of mechanically operated expander,

FIG. 4 is a diagrammatic illustration of another form of the invention, designed to act as an oesophogal block, and

FIG. 5 is'a side elevation, on an enlarged scale, of a simple form of mouth-to-mouth airway.

The apparatus illustrated in FIG. 1 consists of a main tube 10, formed for example of a synthetic plastics material have some rigidity, but also a degree of flexibility. The tube is somewhat curved as shown to facilitate insertion through the mouth of a patient, over the tongue into the oesophagus. To assist this insertion the inner leading end of the tube is provided with a guide tip 11 having a rounded blunt nose. The outer end of this tube 10 is connected via a coupling 12, which may be relatively more flexible, to a tube 13 which forms a mouth piece by which the medical attenclosed or damaged by the patients teeth. The tube is provided with a transverse wall or seal at 15, and above this point, i.e., on the side adjacent to the inlet, the wall of the tube is formed with a considerable number of discharge apertures 16 spaced along the length of the tube, and also preferably spaced around its peripheral wall. When the leading end of the tube is inserted through the patients mouth into the oesophagus, these apertures 16 provide satisfactory communication with the respiratory passages, even if some of the apertures are closed.

Adjacent the leading inner end of the tube there is provided an inflatable sealing element comprising an expandable resilient tubular wall 20, formed for example of a synthetic rubber or like material. This resilient wall may be in the form of a tubular sheath positioned around and outside the wall of the main tube 10, and sealed thereto at both ends, or it may itself constitute part of the wall of the tube, in which case it will be of reduced thickness, or of a different material, to provide the necessary flexibility and resilience. In the illustrated embodiment the inflatable wall 20 is a separate sheath element surrounding the main tube wall 10. In order to expand this element 20 a small bore tube 21, also preferably formed of a flexible synthetic plastics material, extends within the main tube 10 and is connected at its outer end via a branch 22 to an inflater unit comprising a manual pressure bulb 23 connected via an on-off valve 24 and a balloon type inflatable pressure indicator 25 to the branch. It will be seen when the valve 24 is open, pressure is applied to the bulb 23 will force air down the tube 21 into the inner inflatable element 20 causing this to expand against the walls of the oesophagus to form a seal therein. The pressure indicator balloon 25 is so formed that when the inner inflatable element 20 expands, the pressure indicator will also expand to show that the oesophagus is closed. If there is any leak in this air system the balloon pressure indicator will deflate to warn the operator. When the inflatable element is expanded the valve 24 can be closed to hold it in this condition.

In using the apparatus to resuscitate a patient the main tube 10 can be inserted without difficulty through the mouth into the'oesophagus, with the inflatable element 20 collapsed. This is a non-traumatic procedure and can be used by a trained ambulance man or nurse. Pressure is then applied to the bulb 23 to cause the element 20 to expand within the oesophagus so as to close off the stomach from the respiratory passages, and artificial respiration can then be performed by breathing into the mouth tube 13 in the normal manner without risk of inflating the stomach, or of gastric spillage into the respiratory passages.

The apparatus illustrated in FIG. 2 is in many respects identical with that illustrated in FIG. 1, and similar parts are indicated by the same reference numerals. In this case the guide tip 11 at the leading end of the main tube 10 is provided with a longitudinal passage provided with a seal through which projects a small bore stomach washing tube 28. This tube 28 extends within a guide tube 31 passing through the inflatable element 20, along the length of the main tube 10, through the wall 15, and having an external entrance branch 32. The outer end 29 of the tube 28 is connected to apparatus (not shown) for supplying washing water or other dosing fluids, or to a pump for evacuating the stomach contents.

In this form of the apparatus the stomach tube 28 is slidable within the tube 10 and may be partly withdrawn initially into the guide tip 11 as the apparatus is inserted into the oesophagus, and then extended as necessary through the passage in the guide tip into the stomach.

In a further possible alternative, not illustrated, the apparatus is designed solely for stomach washing or the like, and no air inlet 13 and air outlets 16 are provided. In this case the main tube 10 may itself form part of the stomach washing tube.

It will be understood that a variety of modifications are possible. For example the apparatus may be used in conjunction with any oxygen mask, and instead of exhaled air the inlet to the tube 10 may be connected to a bellows, or to a compressed air supply or pump. The expandable element may take various different forms, and may be fluid-operated as illustrated or may be operated mechanically, or electrically. For example, as illustrated in FIG. 3 the expandable element may be in the form of a flexible rubber sleeve 35 which is contracted axially between a fixed abutment 36 and a movable abutment 37, so as to expand radially as shown in dotted lines at 40, the axial movement being effected by a flexible tension member such as a cord 38 passing within the tube 10, and opposed by a tension spring 39. An electro-mechanical transducer such as a solenoid may also be used to operate the expander. The main air tube 10 is preferably of oral external cross-section to reduce the risk of the tube entering accidentally the patients respiratory passages or lungs.

As illustrated in FIG. 4, the apparatus may also take the form of an elongated flexible tube 45, connected at its outer end to an inflator unit similar to that described in the previous examples, incorporating an inflator bulb 46 and an expansion indicator 47, and having at its inner end an inflatable element 48, designed to close off the oesophagus passage. The tube 45 may be of relatively small transverse dimensions, similar to that of a conventional trans-nasal stomach tube, so that it can be introduced through the patients nasal passages into the oesophagus. When inflated to close the oesophagus air for resuscitation can then be introduced into the respiratory passages through the patients mouth by any convenient method. For example air may be introduced by direct mouth-to-mouth exhalation, without any further special equipment, or using a simple form of tubular mouth-to-lung airway, as illustrated in FIG. 5, having a mouthpiece 50, a lip flange 51, and a bend 52 to pass over the back of the tongue.

In yet another form of the invention, a single common tube is used both to introduce air into the respiratory passages, and also to inflate the expandable element, so that the expandable element is inflated simultaneously when air under pressure is delivered to the respiratory passages. For example in the case of the apparatus illustrated in FIG. 1 the tube 21 would be connected to the main air tube 10, and the inflator unit 23, 25, omitted.

We claim:

1. Apparatus for medical purposes comprising an elongated tubular member constructed and arranged to be inserted into the oesophagus and having an outer end and an inner end, an expandable element carried by the member at a point displaced from its outer end, means for causing the element to expand so as to form an effective seal with the walls of the oesophagus, an inlet adjacent the outer end of the member and a discharge port in the member located between said outer end and said expandable element, and a duct within the elongated tubular member providing fluid communication between the inlet and discharge port, said duct terminating at a point between the discharge port and said inner end so that the fluids-directed down the duct to the discharge port will not discharge out of the inner end and no fluid may flow into the inner end to the discharge port.

2. Apparatus as claimed in claim 1, in which the expandable element comprises an inflatable member.

3. Apparatus as claimed in claim 2 further characterized by an auxiliary conduit extending along the member and connected to the expandable element and through which the expandable element is operated in response to the supply of fluid fed through said auxiliary conduit.

4. Apparatus as claimed in claim 3 further characterized by an external inflator unit connected to the outer end of the auxiliary conduit.

5. Apparatus as claimed in claim 4, in which the inflator unit includes an expandible pressure indicator member.

6. Apparatus as claimed in claim 1, in which the member is curved, to facilitate insertion through the mouth into the oesophagus.

7. Apparatus as claimed in claim 1, in which the outer end of the member is connected to a mouthpiece.

8. Apparatus as claimed in claim 1, including a mouth shield and bite tube, at the outer end of the member.

9. Apparatus as claimed in claim 1 further characterized by said duct being an integral part of the member and said discharge port comprising a plurality of openings designed to communicate with the respiratory passages of the patient.

10. Apparatus as claimed in claim 9 further characterized by Y I an auxiliary conduit extending along the member and connected to the expandable element and through which the expandable element is operated in response to the supply of fluid fed through said auxiliary conduit.

11. Apparatus as claimed in claim 10, includinga mouth shield and bite tube, at the outer end of the member.

12. Apparatus as claimed in claim 10 further characterized by an external inflator unit connected to the outer end of the auxiliary conduit.

13. Apparatus as claimed in claim 12, including a mouth shield and bite tube, at the outer end of the member.

Claims (13)

1. Apparatus for medical purposes comprising an elongated tubular member constructed and arranged to be inserted into the oesophagus and having an outer end and an inner end, an expandable element carried by the member at a point displaced from its outer end, means for causing the element to expand so as to form an effective seal with the walls of the oesophagus, an inlet adjacent the outer end of the member and a discharge port in the member located between said outer end and said expandable element, and a duct within the elongated tubular member providing fluid communication between the inlet and discharge port, ''''said duct terminating at a point between the discharge port and said inner end so that the fluids directed down the duct to the discharge port will not discharge out of the inner end and no fluid may flow into the inner end to the discharge port''''.
2. Apparatus as claimed in claim 1, in which the expandable element comprises an inflatable member.
3. Apparatus as claimed in claim 2 further characterized by an auxiliary conduit extending along the member and connected to the expandable element and through which the expandable element is operated in response to the supply of fluid fed through said auxiliary conduit.
4. Apparatus as claimed in claim 3 further characterized by an external inflator unit connected to the outer end of the auxiliary conduit.
5. Apparatus as claimed in claim 4, in which the inflator unit includes an expandible pressure indicator member.
6. Apparatus as claimed in claim 1, in which the member is curved, to facilitate insertion through the mouth into the oesophagus.
7. Apparatus as claimed in claim 1, in which the outer end of the member is connected to a mouthpiece.
8. Apparatus as claimed in claim 1, including a mouth shield and bite tube, at the outer end of the member.
9. Apparatus as claimed in claim 1 further characterized by said duct being an integral part of the member and said discharge port comprising a plurality of openings designed to communicate with the respiratory passages of the patient.
10. Apparatus as claimed in claim 9 further characterized by an auxiliary conduit extending along the member and connected to the expandable element and through which the expandable element is operated in response to the supply of fluid fed through said auxiliary conduit.
11. Apparatus as claimed in claim 10, including a mouth shield and bite tube, at the outer end of the member.
12. Apparatus as claimed in claim 10 further characterized by an external inflator unit connected to the outer end of the auxiliary conduit.
13. Apparatus as claimed in claim 12, including a mouth shield and bite tube, at the outer end of the member.
US867697A 1969-10-20 1969-10-20 Apparatus for sealing the oesophagus and providing artificial respiration Expired - Lifetime US3683908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US86769769A true 1969-10-20 1969-10-20

Publications (1)

Publication Number Publication Date
US3683908A true US3683908A (en) 1972-08-15

Family

ID=25350305

Family Applications (1)

Application Number Title Priority Date Filing Date
US867697A Expired - Lifetime US3683908A (en) 1969-10-20 1969-10-20 Apparatus for sealing the oesophagus and providing artificial respiration

Country Status (1)

Country Link
US (1) US3683908A (en)

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809079A (en) * 1972-09-14 1974-05-07 E Med Corp Resuscitator
US3827433A (en) * 1972-03-07 1974-08-06 Massachusetts Inst Technology Respiratory device and procedure
US3874377A (en) * 1974-06-06 1975-04-01 Kenneth L Davidson Apparatus for endotracheal and esophageal intubation
US3896815A (en) * 1974-06-06 1975-07-29 Shiley Lab Inc Expansible tip catheters
US3905361A (en) * 1974-04-24 1975-09-16 Brunswick Mfg Co Inc Apparatus for sealing the esophagus and providing artificial respiration and evacuating the stomach
US3948255A (en) * 1974-06-06 1976-04-06 Davidson Kenneth L Apparatus for endotracheal and esophageal intubation
US4090518A (en) * 1975-08-25 1978-05-23 Elam James O Esophago-pharyngeal airway
US4155365A (en) * 1977-04-25 1979-05-22 Boslau Rodney J Artificial respiration apparatus
US4231365A (en) * 1978-01-30 1980-11-04 Scarberry Eugene N Emergency resuscitation apparatus
US4256099A (en) * 1979-03-21 1981-03-17 Dryden Gale E Two-tube resuscitation system
US4324262A (en) * 1979-01-02 1982-04-13 University Of Virginia Alumni Patents Foundation Aspirating culture catheter and method of use
US4334534A (en) * 1980-09-18 1982-06-15 The Regents Of The University Of California Emergency airway management device
US4351330A (en) * 1978-01-30 1982-09-28 Scarberry Eugene N Emergency internal defibrillation
US4378796A (en) * 1981-04-17 1983-04-05 Porges Societe Anonyme Endo-tracheal or tracheotomic tube with shield for anaesthesia
US4446864A (en) * 1980-07-10 1984-05-08 Watson Robert L Emergency ventilation tube
US4488548A (en) * 1982-12-22 1984-12-18 Sherwood Medical Company Endotracheal tube assembly
GB2171017A (en) * 1985-02-20 1986-08-20 Michael Frass Endotracheal and/or esophageal-obturator ventilator
US4607635A (en) * 1984-09-27 1986-08-26 Heyden Eugene L Apparatus for intubation
US4637389A (en) * 1985-04-08 1987-01-20 Heyden Eugene L Tubular device for intubation
US4662367A (en) * 1986-02-06 1987-05-05 Leonard Olguin Trachea suction tube
US4692141A (en) * 1982-03-08 1987-09-08 Mahurkar Sakharam D Double lumen catheter
US4770652A (en) * 1985-02-12 1988-09-13 Mahurkar Sakharam D Method and apparatus for using dual-lumen catheters for extracorporeal treatment
US4808155A (en) * 1986-02-27 1989-02-28 Mahurkar Sakharam D Simple double lumen catheter
US4892095A (en) * 1987-03-17 1990-01-09 Nakhgevany Karim B Endotracheal tube
US5197951A (en) * 1983-12-14 1993-03-30 Mahurkar Sakharam D Simple double lumen catheter
US5221255A (en) * 1990-01-10 1993-06-22 Mahurkar Sakharam D Reinforced multiple lumen catheter
US5374245A (en) * 1990-01-10 1994-12-20 Mahurkar; Sakharam D. Reinforced multiple-lumen catheter and apparatus and method for making the same
US5694929A (en) * 1996-02-26 1997-12-09 Christopher; Kent L. Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
WO2000020062A3 (en) * 1998-10-06 2000-07-06 Archibald Ian Jeremy Brain Laryngeal mask airway device
WO2001024859A1 (en) * 1999-10-01 2001-04-12 Evergreen Medical, Inc. Ventilation system during guided insertion of an endotracheal tube
US6263875B1 (en) * 1999-05-13 2001-07-24 Teata Pace Child nasal decongesting device
US6405725B1 (en) 1996-02-26 2002-06-18 Evergreen Medical, Inc. Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US20030037790A1 (en) * 2001-08-23 2003-02-27 Brain Archibald I. J. Disposable laryngeal mask airway device
US20030062049A1 (en) * 2001-09-28 2003-04-03 The Government Of The United States Of America Endotracheal tube using leak hole to lower dead space
US6543446B1 (en) 1996-02-26 2003-04-08 Evergreen Medical Incorporated Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US6568388B2 (en) 1996-02-26 2003-05-27 Evergreen Medical Incorporated Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube
US20030101998A1 (en) * 1997-12-24 2003-06-05 Laryngeal Mask Company (Uk) Limited Monitoring and control for a laryngeal mask airway device
US20030185879A1 (en) * 1999-11-05 2003-10-02 Teni Boulikas Therapy for human cancers using cisplatin and other drugs or genes encapsulated into liposomes
US6698428B2 (en) * 1996-11-06 2004-03-02 Archibald I. J. Brain Endotracheal tube construction
US20040087991A1 (en) * 2002-10-31 2004-05-06 Louis Woo Dilators
US20050139220A1 (en) * 1996-02-26 2005-06-30 Evergreen Medical Incorporated Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube
US7305985B2 (en) 1998-08-13 2007-12-11 The Laryngeal Mask Company Limited Laryngeal mask airway device
USRE39938E1 (en) 1996-03-01 2007-12-18 Indian Ocean Medical, Inc. Gastro-laryngeal mask
US7331346B2 (en) 1997-12-24 2008-02-19 Indian Ocean Medical, Inc. Monitoring and control for a laryngeal mask airway device
US20080053455A1 (en) * 2003-01-22 2008-03-06 Lma International Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage
US20080308109A1 (en) * 2005-05-27 2008-12-18 The Laryngeal Mask Company Limited Laryngeal Mask Airway Device
US20100083957A1 (en) * 2007-04-11 2010-04-08 Davis John J Atraumatic introducer for nasal endotracheal tubes and its method of use
US20150290412A1 (en) * 2014-04-10 2015-10-15 Shahriar Heydari Airway Opening Device
US9265904B2 (en) 2009-07-06 2016-02-23 Teleflex Life Sciences Artificial airway
US9528897B2 (en) 2009-08-13 2016-12-27 Chimden Medical Pty Ltd Pressure indicator
US9675772B2 (en) 2010-10-15 2017-06-13 The Laryngeal Mask Company Limited Artificial airway device
US9974912B2 (en) 2010-10-01 2018-05-22 Teleflex Life Sciences Unlimited Company Artificial airway device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1040425A (en) * 1962-12-26 1966-08-24 Raymond Pesty Improvements in or relating to surgical devices for use in tracheotomy
US3322126A (en) * 1963-04-19 1967-05-30 Willy Rusch Fa Endotracheal catheter
US3407817A (en) * 1965-07-26 1968-10-29 Air Reduction Inc Catheter with cuff inflater and indicator
US3460541A (en) * 1966-10-06 1969-08-12 George O Doherty Endotracheal intubation tubes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1040425A (en) * 1962-12-26 1966-08-24 Raymond Pesty Improvements in or relating to surgical devices for use in tracheotomy
US3322126A (en) * 1963-04-19 1967-05-30 Willy Rusch Fa Endotracheal catheter
US3407817A (en) * 1965-07-26 1968-10-29 Air Reduction Inc Catheter with cuff inflater and indicator
US3460541A (en) * 1966-10-06 1969-08-12 George O Doherty Endotracheal intubation tubes

Cited By (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827433A (en) * 1972-03-07 1974-08-06 Massachusetts Inst Technology Respiratory device and procedure
US3809079A (en) * 1972-09-14 1974-05-07 E Med Corp Resuscitator
US3905361A (en) * 1974-04-24 1975-09-16 Brunswick Mfg Co Inc Apparatus for sealing the esophagus and providing artificial respiration and evacuating the stomach
US3874377A (en) * 1974-06-06 1975-04-01 Kenneth L Davidson Apparatus for endotracheal and esophageal intubation
US3948255A (en) * 1974-06-06 1976-04-06 Davidson Kenneth L Apparatus for endotracheal and esophageal intubation
US3896815A (en) * 1974-06-06 1975-07-29 Shiley Lab Inc Expansible tip catheters
US4090518A (en) * 1975-08-25 1978-05-23 Elam James O Esophago-pharyngeal airway
US4155365A (en) * 1977-04-25 1979-05-22 Boslau Rodney J Artificial respiration apparatus
US4351330A (en) * 1978-01-30 1982-09-28 Scarberry Eugene N Emergency internal defibrillation
US4231365A (en) * 1978-01-30 1980-11-04 Scarberry Eugene N Emergency resuscitation apparatus
US4324262A (en) * 1979-01-02 1982-04-13 University Of Virginia Alumni Patents Foundation Aspirating culture catheter and method of use
US4256099A (en) * 1979-03-21 1981-03-17 Dryden Gale E Two-tube resuscitation system
US4446864A (en) * 1980-07-10 1984-05-08 Watson Robert L Emergency ventilation tube
US4334534A (en) * 1980-09-18 1982-06-15 The Regents Of The University Of California Emergency airway management device
US4378796A (en) * 1981-04-17 1983-04-05 Porges Societe Anonyme Endo-tracheal or tracheotomic tube with shield for anaesthesia
US4692141A (en) * 1982-03-08 1987-09-08 Mahurkar Sakharam D Double lumen catheter
US4488548A (en) * 1982-12-22 1984-12-18 Sherwood Medical Company Endotracheal tube assembly
US5197951A (en) * 1983-12-14 1993-03-30 Mahurkar Sakharam D Simple double lumen catheter
US4607635A (en) * 1984-09-27 1986-08-26 Heyden Eugene L Apparatus for intubation
US4770652A (en) * 1985-02-12 1988-09-13 Mahurkar Sakharam D Method and apparatus for using dual-lumen catheters for extracorporeal treatment
US4688568A (en) * 1985-02-20 1987-08-25 Michael Frass Respiratory tube or airway
GB2171017A (en) * 1985-02-20 1986-08-20 Michael Frass Endotracheal and/or esophageal-obturator ventilator
US4637389A (en) * 1985-04-08 1987-01-20 Heyden Eugene L Tubular device for intubation
US4662367A (en) * 1986-02-06 1987-05-05 Leonard Olguin Trachea suction tube
US4808155A (en) * 1986-02-27 1989-02-28 Mahurkar Sakharam D Simple double lumen catheter
US4892095A (en) * 1987-03-17 1990-01-09 Nakhgevany Karim B Endotracheal tube
US5374245A (en) * 1990-01-10 1994-12-20 Mahurkar; Sakharam D. Reinforced multiple-lumen catheter and apparatus and method for making the same
US5221255A (en) * 1990-01-10 1993-06-22 Mahurkar Sakharam D Reinforced multiple lumen catheter
US6543446B1 (en) 1996-02-26 2003-04-08 Evergreen Medical Incorporated Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US5694929A (en) * 1996-02-26 1997-12-09 Christopher; Kent L. Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US20050139220A1 (en) * 1996-02-26 2005-06-30 Evergreen Medical Incorporated Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube
US6631713B1 (en) 1996-02-26 2003-10-14 Evergreen Medical Incorporated Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US6405725B1 (en) 1996-02-26 2002-06-18 Evergreen Medical, Inc. Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US6568388B2 (en) 1996-02-26 2003-05-27 Evergreen Medical Incorporated Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube
USRE39938E1 (en) 1996-03-01 2007-12-18 Indian Ocean Medical, Inc. Gastro-laryngeal mask
US6698428B2 (en) * 1996-11-06 2004-03-02 Archibald I. J. Brain Endotracheal tube construction
US7331346B2 (en) 1997-12-24 2008-02-19 Indian Ocean Medical, Inc. Monitoring and control for a laryngeal mask airway device
US7273053B2 (en) 1997-12-24 2007-09-25 Mario Zocca Monitoring and control for a laryngeal mask airway device
US20030101998A1 (en) * 1997-12-24 2003-06-05 Laryngeal Mask Company (Uk) Limited Monitoring and control for a laryngeal mask airway device
US7305985B2 (en) 1998-08-13 2007-12-11 The Laryngeal Mask Company Limited Laryngeal mask airway device
US9694150B2 (en) 1998-08-13 2017-07-04 The Laryngeal Mask Company Limited Laryngeal mask airway device
US20080060655A1 (en) * 1998-08-13 2008-03-13 Lma International Laryngeal mask airway device
WO2000020062A3 (en) * 1998-10-06 2000-07-06 Archibald Ian Jeremy Brain Laryngeal mask airway device
US20050274383A1 (en) * 1998-10-06 2005-12-15 Brain Archibald I Laryngeal mask airway device
EP1609497A3 (en) * 1998-10-06 2006-05-03 Brain, Archibald Ian Jeremy, Dr. Laryngeal mask airway device
EP1600192A3 (en) * 1998-10-06 2006-05-10 Brain, Archibald Ian Jeremy, Dr. Laryngeal mask airway device
US7493901B2 (en) 1998-10-06 2009-02-24 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US7506648B2 (en) 1998-10-06 2009-03-24 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US20090007920A1 (en) * 1998-10-06 2009-01-08 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US20060254596A1 (en) * 1998-10-06 2006-11-16 Brain Archibald I J Laryngeal mask airway device
US6263875B1 (en) * 1999-05-13 2001-07-24 Teata Pace Child nasal decongesting device
WO2001024859A1 (en) * 1999-10-01 2001-04-12 Evergreen Medical, Inc. Ventilation system during guided insertion of an endotracheal tube
US20030185879A1 (en) * 1999-11-05 2003-10-02 Teni Boulikas Therapy for human cancers using cisplatin and other drugs or genes encapsulated into liposomes
US7159589B2 (en) 2001-08-23 2007-01-09 Indian Ocean Medical Inc. Disposable laryngeal mask airway device
US20030037790A1 (en) * 2001-08-23 2003-02-27 Brain Archibald I. J. Disposable laryngeal mask airway device
US20070102001A1 (en) * 2001-08-23 2007-05-10 Indian Ocean Medical Inc. Disposable laryngeal mask airway device
US7107991B2 (en) * 2001-09-28 2006-09-19 The United States Of America As Represented By The Department Of Health & Human Services Endotracheal tube using leak hole to lower dead space
US20030062049A1 (en) * 2001-09-28 2003-04-03 The Government Of The United States Of America Endotracheal tube using leak hole to lower dead space
US20040087991A1 (en) * 2002-10-31 2004-05-06 Louis Woo Dilators
US8202289B2 (en) * 2002-10-31 2012-06-19 Smiths Group Plc Dilators
US9027559B2 (en) 2003-01-22 2015-05-12 The Laryngeal Mask Company Ltd. Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage
US20080053455A1 (en) * 2003-01-22 2008-03-06 Lma International Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage
US20100059061A1 (en) * 2005-05-27 2010-03-11 The Laryngeal Mask Company Ltd. Laryngeal mask airway device and method of manufacture
US20090133701A1 (en) * 2005-05-27 2009-05-28 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US9522245B2 (en) 2005-05-27 2016-12-20 The Laryngeal Mask Company Ltd. Laryngeal mask airway device and method of manufacture
US8783256B2 (en) 2005-05-27 2014-07-22 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US9662465B2 (en) 2005-05-27 2017-05-30 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US20080308109A1 (en) * 2005-05-27 2008-12-18 The Laryngeal Mask Company Limited Laryngeal Mask Airway Device
US9498591B2 (en) 2005-05-27 2016-11-22 The Laryngeal Mask Company Ltd. Laryngeal mask airway device with a support for preventing occlusion
US20100083957A1 (en) * 2007-04-11 2010-04-08 Davis John J Atraumatic introducer for nasal endotracheal tubes and its method of use
US8561605B2 (en) * 2007-04-11 2013-10-22 John J. Davis Atraumatic introducer for nasal endotracheal tubes and its method of use
US9265904B2 (en) 2009-07-06 2016-02-23 Teleflex Life Sciences Artificial airway
US9528897B2 (en) 2009-08-13 2016-12-27 Chimden Medical Pty Ltd Pressure indicator
US10126197B2 (en) 2009-08-13 2018-11-13 Teleflex Life Sciences Pressure indicator
US9974912B2 (en) 2010-10-01 2018-05-22 Teleflex Life Sciences Unlimited Company Artificial airway device
US9675772B2 (en) 2010-10-15 2017-06-13 The Laryngeal Mask Company Limited Artificial airway device
US20150290412A1 (en) * 2014-04-10 2015-10-15 Shahriar Heydari Airway Opening Device

Similar Documents

Publication Publication Date Title
US3529596A (en) Automatic intermittent tracheotomy tube cuff inflator-deflator
US3599642A (en) Endotracheal tubes
US3460541A (en) Endotracheal intubation tubes
US3481339A (en) Endotracheal tube
US3402717A (en) Endotracheal tube with valved balloon having a removable inflation stylet insert therein
ES2199976T3 (en) Device to assist CPR.
US5546935A (en) Endotracheal tube mounted pressure transducer
US6443156B1 (en) Separable double lumen endotracheal tube
JP3199732B2 (en) Ventilation means with an endotracheal tube
US6067984A (en) Pulmonary modulator apparatus
JP4652397B2 (en) The patient's ventilation / suction system
JP2931988B2 (en) Artificial breathing apparatus
AU666756B2 (en) Laryngeal mask airway with concentric drainage of oesophagus discharge
US6062223A (en) Tracheal tube devices
US7921847B2 (en) Device and method for placing within a patient an enteral tube after endotracheal intubation
US4338930A (en) Airway intubator
AU646853B2 (en) Improvements in or relating to a resuscitator
US4327720A (en) Esophageal-endotracheal airway
US3731692A (en) Tracheotomy or endotracheal tube cuff
KR960005147B1 (en) Artificial airway device
US4989596A (en) Face chamber
US4877025A (en) Tracheostomy tube valve apparatus
US5964217A (en) Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US5188592A (en) Dynamic pressurized catheter with simultaneous oxygen delivery and suction
US6860270B2 (en) Double barrel ventilation mask for a patient

Legal Events

Date Code Title Description
AS Assignment

Owner name: INTERNATIONALE NEDERLANDEN (U.S.) CAPITAL CORPORAT

Free format text: COLLATERAL ASSIGNMENT AND SECURITY AGREEMENT (PATE;ASSIGNOR:BRUNSWICK BIOMEDICAL CORPORATION;REEL/FRAME:007894/0004

Effective date: 19960415