Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónUS3905361 A
Tipo de publicaciónConcesión
Fecha de publicación16 Sep 1975
Fecha de presentación24 Abr 1974
Fecha de prioridad24 Abr 1974
Número de publicaciónUS 3905361 A, US 3905361A, US-A-3905361, US3905361 A, US3905361A
InventoresHewson John R, Hewson Roy H
Cesionario originalBrunswick Mfg Co Inc
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Apparatus for sealing the esophagus and providing artificial respiration and evacuating the stomach
US 3905361 A
Resumen
Apparatus for use in artificial respiration and stomach evacuation comprising an elongated member and ventilation mask. The elongated member which is designed to be inserted into the esophagus and stomach has an expandable inflatable element which can be operated externally after insertion in order to close the esophagus to prevent inflation of the stomach or aspiration of the contents of the stomach into the respiratory system. The ventilation mask, which fits over the mouth and nose provides a seal against the patient's face when it is held in place. A ventilation opening in the mask allows air or oxygen to be directed through the mouth into the lungs for artificial respiration. The apparatus preferably includes a tubular fluid passageway in the elongated member with evacuation openings beyond the inflatable element to allow the contents of the stomach to be aspirated through the passageway and externally of the mask. Fluid can also be introduced into the stomach through the passageway.
Imágenes(1)
Previous page
Next page
Descripción  (El texto procesado por OCR puede contener errores)

United States Patent 1191 Hewson et al.

1 51 Sept. 16, 1975 APPARATUS FOR SEALING THE ESOPHAGUS AND PROVIDING ARTIFICIAL RESPIRATION AND EVACUATING THE STOMACH [75] Inventors: John R. Hewson, Norwell; Roy H.

Hewson, Carver, both of Mass.

[73] Assignee: Brunswick Mfg. Co., Inc.', North Quincy, Mass.

[22] Filed: Apr. 24, 1974 [21] Appl. No.: 463,585

[52] US. Cl 128/1455; 128/276; 128/349 B;

128/351 [51] Int. Cl. A61M 16/00 [58] Field of Search 128/1455, 145.6, 145.7,

128/1424, 276, 277, 278, 351, 188, 349 B, 349 BV, DIG. 26

3,815,596 6/1974 Keener 128/188 Primary ExaminerRichard A. Gaudet Assistant Examiner-Henry J. Recla Attorney, Agent, or Firm-Wolf, Greenfield & Sacks [57] ABSTRACT Apparatus for use in artificial respiration and stomach evacuation comprising an elongated member and ventilation mask. The elongated member which is de- Signed to be inserted into the esophagus and stomach has an expandable inflatable element which can be operated externally after insertion in order to close the esophagus to prevent inflation of the stomach or aspiration of the contents of the stomach into the respiratory system. The ventilation mask, which fits over the mouth and nose provides a seal against the patients face when it is held in place. A ventilation opening in the mask allows air or oxygen to be directed through the mouth into the lungs for artificial respiration. The apparatus preferably includes a tubular fluid passageway in the elongated member with evacuation openings beyond the inflatable element to allow the contents of the stomach to be aspirated through the passageway and externally of the mask. Fluid can also be introduced into the stomach through the passageway.

11 Claims, 3 Drawing Figures PATENTEI] SEP I 6 [975 APPARATUS FOR SEALING THE ESOPHAGUS AND PROVIDING ARTIFICIAL RESPIRATION AND EVACUATING THE STOMACH INTRODUCTION US. Pat. No. 3,683,909 dated Aug. 15, 1972 issued in the name of DonMichael et al describes the importance of the technique of mouth-to-mouth resuscitation performed either by a party exhaling directly into the mouth of the person to be revived or by the exhalation of air into an airway inserted into the mouth of the patient. This invention is a modification of the invention of that patent, and provides means for ventilating the patients lungs and evacuating the stomach.

Unlike the apparatus of the DonMichael et al patent supra, in the present invention ventilation is provided by introducing air or oxygen into a mask that covers the nose and mouth and forms a seal against the face, from which it flows directly into the lungs without the aid of a duct or other special passage. A duct which extends into the esophagus from the mask does not carry the ventilating gas but rather serves to seal the stomach from the gas and prevent the stomach contents from backing up into the respiratory system. In the preferred form of this invention, the duct may also be used to evacuate the stomach and convey the contents to a point beyond the face mask, without interfering with ventilating procedure.

BRIEF FIGURE DESCRIPTION FIG. 1 is a side view, partly in section, of a device constructed in accordance with this invention and suggesting its use in place in the esophagus;

FIG. 2 is a fragmentary view of a modification of this invention; and

FIG. 3 is a cross sectional view taken along section line 3--3 of FIG. 1.

DETAILED DESCRIPTION OF INVENTION The apparatus illustrated in FIG. 1 contains a main tube 1, formed of a synthetic plastic material having some rigidity, but also a degree of flexibility. The tube is somewhat curved to case its insertion through the mouth of the patient, over the tongue and into the esophagus and stomach. Guide tip 2 provided on the inner or leading end closes that end of the tube, and has a rounded blunt nose that eases the insertion of the tube into the patient. Near the inner end of the tube the wall of the tube is formed with a number of apertures 3 spaced along its length and around its peripheral wall. When the apparatus is in place, these apertures are disposed inside the stomach and provide ports through which the contents of the stomach can enter the tube 1. (This is suggested in FIG. 1 wherein the apertures 3 are shown disposed in the stomach S.)

A sleeve 4 fits tightly within and extends beyond the other outer end of tube 1 and is made of a hard synthetic plastic material such as polypropelene. The sleeve 4 inter alia serves as a bite tube which prevents the tube I from being collapsed by the patients teeth when the tube extends through the mouth.

Above apertures 3 in tube 1 and around the outside of the tube is an inflatable cuff 5 which is sealed at both ends to the outer surface 6 of the tube. The cuff is in effect an expandable, resilient, tubular wall formed of a synthetic rubber or like material. A small bore channel 6 is formed in the wall of the tube 1 and extends from the inflatable cuff and within the wall of the tube toward its outer end and emerges from tube 1 at point 8 and is continued as a separate tube 7. The other end of tube 7 is connected to an inflatable pressure indicator 9 in turn connected to a connecting piece 10 which carries a valve 11. The valve in turn is connected to a pump member 12 in the form of a syringe.

The pump comprises a hollow cylinder 13 having a tubular stem 14 that connects to the valve 1 l and a piston l5 controlled through a finger actuator 16 to which the piston is attached. Insertion of stem 14 opens valve 1 l and permits air to be forced from the pump through duct 6 into the inflatable cuff 5. The pressure indicator 9 expands as the inflatable cuff expands, and its deflation warns the operator of the deflation of the cuff and that the entrance E of the esophagus is open to the stomach. Disconnecting the pump from the valve may automatically close the valve and preserve the air pressure in the cuff. The valve 11 may also be removed from the fitting 11' at the end of connecting piece 10, and plug 10 may be used to close the fitting.

A ventilation mask 20, which is designed to fit over the nose and mouth of the patient comprises a cupshaped section 21 formed of a synthetic clear plastic material such as poly carbonate and a detachable inflatable collar 22 that typically may be formed of a synthetic rubber or like material. The cup-shaped section 21 of the mark contains a circular opening into which sleeve 4 can be inserted. The opening is provided with grommet 24 which maintains a tight seal about the sleeve when the sleeve is inserted.

The cup section of the mask also carries a duct 31 that may be integral with or otherwise permanently fixed to the mask and through which air can be introduced for ventilating the lungs. The duct 31 is of course open to the inside of the mask for this purpose. The rubber collar 22 of the mask assembly is a small inner tube-like structure. It fits tightly on and around the plastic cup section of the mask and can be inflated through tube 32 connected to a metal coupling 33. The inflatable collar provides a seal with the face of the patient when the mask is held in place against the face without an undue force being applied.

When using the apparatus the main tube 1 is inserted through the patients mouth into the esophagus and stomach with the inflatable cuff 5 collapsed. With the tube inserted to a depth wherein the cuff is near the end of the esophagus, pressure is then applied by the pump to force air into the cuff to inflate it. In this manner the patients respiratory system is closed off from his stomach, and the evacuation openings 3 in the tube 1 will be inside the stomach. The sleeve 4 on the end of the tube may be inserted into the mask opening either before or after the tube is inserted into the patient. The rubber collar 22 of the mask 20 will also be inflated to form a seal about the cup of the mask on the face. With the tube and mask in place the lungs may be ventilated through tube 31 either from the mouth of an attendant or with some standard equipment. The air introduced through the mask by means of tube 31 passes into the lungs via the patients mouth and/or nose and trachea as in normal breathing. Inflated cuff 5 prevents the ventilating air from entering the stomach as the entry E from the esophagus is sealed.

The openings 3 in the tube enable the stomach to be evacuated without any risk of the stomach contents entering the lungs. And this may be done either independently of or simultaneously with the lung ventilating function. In the preferred form the sleeve 4 is removable from the mask so that the mask can be removed from the patients face without withdrawing tube 1 to enable an indotracheal tube to be inserted or for aspiration.

In FIG. 2 a modification of this invention is shown wherein the means for evacuating the stomach is in the form of a removable inner duct 40 that extends from the sleeve 4 throughout the length of tube 1 and out the closed end 2 of the tube. A self sealing opening may be provided at end 2' to allow the duct to extend through it and into the stomach. The inner end 41 of duct 40 would be open as at 42 and have additional side ports 43 to receive the stomach contents.

In this embodiment, the inflation cuff and mask are the same as that in the embodiment of FIG. 1, and they are not here shown in detail.

From the foregoing description those skilled in the art will appreciate that modifications may be made of this invention without departing from its spirit. For example, while in each of the embodiments shown means are provided for evacuating the stomach or introducing fluids into the stomach without interfering with lung ventilation, it will be understood that the means may be omitted if the device is to be used only for lung ventilation. In that case, the inflated cuff will prevent regurgitation and gastric distention.

Because modifications may be made of this invention without departing from its spirit, we do not intend to limit the scope of this invention to the two embodiments illustrated and described. Rather, the scope of this invention is to be determined by the appended claims and their equivalents.

What is claimed is:

1. Apparatus for medicinal purposes comprising an elongated solid, tubular member constructed and arranged to be inserted into the esophagus and having outer and inner ends,

an expandable element carried by the member in the vicinity of its inner end,

means for causing the element to expand so as to form an effective seal isolating the stomach from the lungs of a patient,

a face mask including a cup-shaped section having a collar means about the periphery thereof for providing a seal with the face of a patient;

said elongated tubular member extending through said cup-shaped section in the vicinity of its outer end,

and an opening through said cup-shaped section defining a ventilating passageway passing to the inside of the mask for introducing ventilating gas therein which may pass through the nose and/or mouth and trachea to the patients lungs.

2. Apparatus as defined in claim 1 in which the elongated member has a port adjacent to the outer end of the member and a port located adjacent to the inner end and contains a duct which provides fluid communication between the ports.

3. Apparatus as defined in claim I, in which the expandable element comprises an inflatable cuff.

4. Apparatus as defined in claim 3 further characterized by a channel in the elongated member and connected to the cuff and through which the cuff may be inflated.

5. Apparatus as claimed in claim 1 in which the outer end of the elongated member is connected to a sleeve in turn removably mounted in and extending through the mask.

6. Apparatus as defined in claim 1 in which an inflatable collar is secured to the edge of the mask to form a seal between the mask and the patients face.

7. Apparatus as claimed in claim 1 further characterized by a ventilation tube in communication with the opening in said mask for providing mouth to mask ventilation.

8. Apparatus for medical purposes comprising,

an elongated member constructed and arranged to be inserted into the esophagus and having outer and inner ends, I

an expandable element carried by the member in the vicinity of its inner end,

means for causing the element to expand so as to form an effective seal isolating the stomach from the lungs of a patient,

a face mask connected to the elongated member in the vicinity of its outer end with said face mask having means for forming a seal with the face of a patient,

an opening through the mask to the inside thereof for introducing ventilating gas therein which may pass through the nose and/or mouth and trachea to the patients lungs,

said elongated member being tubular with a port adjacent to the outer end of the member and a port located adjacent to the inner end and containing a duct which provides fluid communication between the ports,

a second opening in the mask through which the tubular member extends, and said port adjacent the outer end of the tubular member lying outside said mask.

9. Apparatus as defined in claim 8 further characterized by a ventilation tube in communication with the opening in said mask for providing mouth to mask ventilation, said tube being open to the inside of the mask.

10. Apparatus as defined in claim 2 further characterized by said duct being an integral part of the tubular member.

11. Apparatus as defined in claim 2 further characterized by said duct being a separate member that extends out the ports and has openings in its inner end for communicating with the interior of the stomach.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,905,361 Dated Sept. 16, 1975 Inventor(s) John R. Hewson and Roy H. Hewson It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column I; Iine 6, correct "U.S. Pat. No. 3,683,909" to read -U.S. Pat. No. 3,683,908--.

Co] umn I line 58, change "poIypropeIene" to read --poIyprop y1ene-.

CoIumn 2; Iine 28, change mark" to --mask-.

gigncd and Scaled this third D ay Of February 1 976 [SEAL] Attest:

RUTH C. MASON C. MARSHALL DANN Aflsfl'ng ff Commissioner ofPatents and Trademarks

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US3017880 *4 Nov 195823 Ene 1962Brook Airway LtdResuscitator
US3042041 *9 Mar 19603 Jul 1962Jascalevich Mario EDevice for draining wounds
US3124124 *16 Oct 195710 Mar 1964 cross
US3683908 *20 Oct 196915 Ago 1972Lambert Edward HenryApparatus for sealing the oesophagus and providing artificial respiration
US3730179 *30 Oct 19701 May 1973Williams ACombination resuscitating, aspirating and gastric draining apparatus
US3815596 *26 Ene 197311 Jun 1974Automation Ind IncDisposable face mask
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US3993080 *24 Jul 197523 Nov 1976Loseff Herbert SSuction tube and retrograde flushing for wounds, body cavities and the like
US4074709 *15 Abr 197621 Feb 1978Kaplan Leopold SMethod and device for facilitating double-contrast studies of the upper gastrointestinal tract
US4083369 *2 Jul 197611 Abr 1978Manfred SinnreichSurgical instruments
US4090518 *12 Ago 197623 May 1978Elam James OEsophago-pharyngeal airway
US4119101 *1 Mar 197610 Oct 1978Victor IgichMultiple lumen endotracheal tube and cuff with limited inflation and pressure
US4155365 *25 Abr 197722 May 1979Boslau Rodney JArtificial respiration apparatus
US4256099 *21 Mar 197917 Mar 1981Dryden Gale ETwo-tube resuscitation system
US4305387 *19 Nov 197915 Dic 1981Societe Technique Pour L'industrie NouvelleDevice for providing artificial respiration to patients
US4327720 *22 Ene 19794 May 1982Bronson Paul AEsophageal-endotracheal airway
US4334534 *18 Sep 198015 Jun 1982The Regents Of The University Of CaliforniaEmergency airway management device
US4795431 *14 Ene 19873 Ene 1989Walling Peter TSyringe and catheter apparatus
US4834085 *10 Dic 198730 May 1989Webster Ii John WPerson-to-person resuscitation device
US4848331 *14 Nov 198618 Jul 1989Northway Meyer RobertApparatus and method for pulmonary ventilation of a patient concurrent with fiberoptic respiratory tract examination and tracheal intubation
US4865587 *18 Jul 198812 Sep 1989Walling Peter TSyringe and catheter apparatus
US4892095 *17 Mar 19879 Ene 1990Nakhgevany Karim BEndotracheal tube
US5007919 *11 Oct 198916 Abr 1991Silva Fidel HMethod and apparatus for patient protection against vessel rupture from balloon-tipped catheters
US5022392 *1 Oct 199011 Jun 1991Yeakel Joseph DApparatus for secretion deflection during intubation
US5067497 *16 Mar 199026 Nov 1991Progressive Medical Design, Inc.Intubation device with adjustable suction means above the cuff
US5078681 *23 Oct 19897 Ene 1992Olympus Optical Co., Ltd.Balloon catheter apparatus with releasable distal seal and method of operation
US5196017 *15 Abr 199123 Mar 1993Silva Fidel HMethod and apparatus for patient protection against vessel rupture from balloon-tipped catheters
US5308320 *28 Dic 19903 May 1994University Of Pittsburgh Of The Commonwealth System Of Higher EducationPortable and modular cardiopulmonary bypass apparatus and associated aortic balloon catheter and associated method
US5343859 *17 Jun 19936 Sep 1994Puritan-Bennett CorporationPassenger oxygen mask having internal flow confirmation balloon
US5383854 *19 Ago 199224 Ene 1995University Of Pittsburgh Of The Commonwealth System Of Higher EducationPortable and modular cardiopulmonary bypass apparatus and associated aortic balloon catheter and associated method
US5431158 *30 Jun 199411 Jul 1995Tirotta; Christopher F.Endoscopy breathing mask
US5820593 *25 Abr 199613 Oct 1998University Of Pittsburg Of The Commonwealth System Of Higher EducationPortable and modular cardiopulmonar bypass apparatus and associated aortic balloon catheter and associated method
US5879316 *10 Abr 19979 Mar 1999University Of Pittsburgh Of The Commonwealth System Of Higher EducationPortable and modular cardiopulmonary bypass apparatus and associated aortic balloon catheter and associated method
US5906588 *11 Ago 199725 May 1999Cardeon CorporationPortable and modular cardiopulmonary bypass apparatus and associated aortic balloon and associated method
US5980483 *21 May 19969 Nov 1999Dimitri; MauroDrainage catheter for continent urinary neo-bladders
US6165162 *14 Sep 199826 Dic 2000University Of Pittsburgh Of The Commonwealth System Of Higher EducationMethod of using aortic balloon catheter
US647802613 Mar 200012 Nov 2002Thomas J. WoodNasal ventilation interface
US6543446 *6 Nov 20008 Abr 2003Evergreen Medical IncorporatedMethod and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US6792943 *25 Oct 200121 Sep 2004Minnesota High-Tech Resources, LlcIntubating ventilatory face mask
US684906121 Oct 20021 Feb 2005Robert B. WagnerMethod and apparatus for pleural drainage
US699408915 Sep 20047 Feb 2006Innomed Technologies, IncNasal ventilation interface
US699717713 Jul 200414 Feb 2006Inno Med Technologies, Inc.Ventilation interface for sleep apnea therapy
US700061328 Jun 200421 Feb 2006Innomed Technologies, Inc.Nasal interface and system including ventilation insert
US7018359 *5 Jun 200228 Mar 2006Koken Co., Ltd.Inner pressure indicator of cuff
US704797420 Oct 200323 May 2006Innomed Technologies, Inc.Nasal cannula
US705932817 Dic 200413 Jun 2006Innomed Technologies, Inc.Ventilation interface for sleep apnea therapy
US718862415 Sep 200413 Mar 2007Innomed Technologies Inc.Ventilation interface for sleep apnea therapy
US723446510 Dic 200426 Jun 2007Innomed Technologies, Inc.Nasal ventilation interface and system
US74727071 Jul 20046 Ene 2009Innomed Technologies, Inc.Nasal interface and system including ventilation insert
US755932731 May 200514 Jul 2009Respcare, Inc.Ventilation interface
US765818926 Jun 20069 Feb 2010Resmed LimitedCompact oronasal patient interface
US77080177 Feb 20074 May 2010Resmed LimitedCompact oronasal patient interface
US794214824 Dic 200417 May 2011Resmed LimitedCompact oronasal patient interface
US795889318 Mar 200914 Jun 2011Resmed LimitedCushion for a respiratory mask assembly
US80425396 Jul 200525 Oct 2011Respcare, Inc.Hybrid ventilation mask with nasal interface and method for configuring such a mask
US81365256 Jun 200620 Mar 2012Resmed LimitedMask system
US826174512 Dic 200511 Sep 2012Respcare, Inc.Ventilation interface
US8262605 *21 Jul 200511 Sep 2012Ams Research CorporationNeedleless delivery systems
US82919064 Jun 200923 Oct 2012Resmed LimitedPatient interface systems
US829728527 Jul 200730 Oct 2012Resmed LimitedDelivery of respiratory therapy
US848519229 Jun 201216 Jul 2013Resmed LimitedCushion for patient interface
US852278423 Ene 20133 Sep 2013Resmed LimitedMask system
US852856118 Ene 201310 Sep 2013Resmed LimitedMask system
US855008129 Nov 20128 Oct 2013Resmed LimitedCushion for patient interface
US855008229 Nov 20128 Oct 2013Resmed LimitedCushion for patient interface
US855008329 Nov 20128 Oct 2013Resmed LimitedCushion for patient interface
US855588529 Nov 201215 Oct 2013Resmed LimitedCushion for patient interface
US856740414 Nov 201229 Oct 2013Resmed LimitedCushion for patient interface
US857321314 Nov 20125 Nov 2013Resmed LimitedCushion for patient interface
US857321428 Nov 20125 Nov 2013Resmed LimitedCushion for patient interface
US857321529 Nov 20125 Nov 2013Resmed LimitedCushion for patient interface
US857893529 Nov 201212 Nov 2013Resmed LimitedCushion for patient interface
US861328014 Nov 201224 Dic 2013Resmed LimitedCushion for patient interface
US861328129 Nov 201224 Dic 2013Resmed LimitedCushion for patient interface
US861621129 Nov 201231 Dic 2013Resmed LimitedCushion for patient interface
US20130282048 *19 Jun 201324 Oct 2013Terumo Kabushiki KaishaHemostatic device
WO1979000788A1 *15 Mar 197918 Oct 1979Techn Pour Ind Nouvelle Sa SocDevice for artificial breathing of patients
Clasificaciones
Clasificación de EE.UU.128/202.16, 604/97.2, 128/202.28, 128/207.15
Clasificación internacionalA61M16/06, A61M1/00, A61M16/04
Clasificación cooperativaA61M1/008, A61M16/06, A61M16/0488, A61M16/0463, A61M2210/1053, A61M2016/0415
Clasificación europeaA61M1/00T, A61M16/04D, A61M16/06
Eventos legales
FechaCódigoEventoDescripción
14 Jun 1996ASAssignment
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
6 Sep 1990ASAssignment
Owner name: BRUNSWICK BIOMEDICAL TECHNOLOGIES, INC., A MA CORP
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BRUNSWICK MANUFACTURING CO., INC.;REEL/FRAME:005426/0389
Effective date: 19900703
6 Sep 1990AS02Assignment of assignor's interest
Owner name: BRUNSWICK BIOMEDICAL TECHNOLOGIES, INC., 6 THACHER
Effective date: 19900703
Owner name: BRUNSWICK MANUFACTURING CO., INC.