US3363833A - Elastic bag for artificial respiration apparatus - Google Patents
Elastic bag for artificial respiration apparatus Download PDFInfo
- Publication number
- US3363833A US3363833A US464126A US46412665A US3363833A US 3363833 A US3363833 A US 3363833A US 464126 A US464126 A US 464126A US 46412665 A US46412665 A US 46412665A US 3363833 A US3363833 A US 3363833A
- Authority
- US
- United States
- Prior art keywords
- ring
- bag
- shaped part
- shaped
- parts
- 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
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Classifications
-
- 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
- A61M16/0057—Pumps therefor
- A61M16/0078—Breathing bags
-
- 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
- A61M16/0057—Pumps therefor
- A61M16/0084—Pumps therefor self-reinflatable by elasticity, e.g. resuscitation squeeze bags
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
Description
Jan. 16, 1968 A. s. LAERDAL ELASTIQ BAG FOR'ARTIFICIAL RESPIRATION APPARATUS Filed June 15, 1965 INVENTOR United States Patent 3,363,833 ELASTIC BAG FOR ARTIFICIAL RESPIRATION APPARATUS Asmund Sigurd Laerdal, Stavanger, Norway Filed June 15, 1965, Ser. No. 464,126 Claims priority, application Norway, June 15,1964, 153,648 1 Claim. (Cl. 230-469) The present invention relates to an elastic bag for an artificial respiration apparatus for supplying air or oxygen to the lungs of a patient and adpted to be elastically compressed in a direction transverse to its longitudinal axis. After being compressed, this bag because of its elasticity returns to its original shape and thereby draws into it air or oxygen which during the subsequent compression of the bag is forced into the lungs of the patient.
The elastic bag for such apparatus which were known prior to this invention have the disadvantage that they have considerable dimensions in the uncompressed condition and that they must therefore be kept in special containers for which a physician may not always have sufficient space in his instrument bag.
It is an object of the present invention to provide an elastic bag of the type and for the purpose as mentioned above which may be made of such a small size that it may be easily stored in the instrument bag of a physician. According to the invention, this object is attained by designing the bag so as to permit it to be folded together in its axial direction. When the elastic bag according to the invention is in its folded or collapsed condition, it takes up a relatively small space which only amounts to a fraction of its original volume and it may therefore be stored within a much smaller space than was previously required for storing one of the elastic bags of the usual type.
The elastic bag according to the invention may consist of a central part which may not be folded in its axial direction, and of two outer parts which may be folded into the central part and are tapered from the central part toward their outer ends. This facilitates the operation of folding together or collapsing the bag. According to another feature of the invention, the two outer parts of the elastic bag are provided with constrictions which extend around the entire periphery of these parts. This has the advantage that, after being folded together, the bag will remain in this folded or collapsed condition and will not open up to its full size of its own accord. According to another feature of the invention, this advantage is further enhanced by making the Wall portions of the outer paits which are located between the constrictions of a greater thickness than the wall portions of the constricted parts and also of the central part. This requires a certain amount of force to be exerted in order to overcome the tendency of the outer parts of the bag to remain in their inwardly folded position and to pull these parts out of the central part so that the bag will again have its full s1ze.
The elastic bag according to the invention is provided similarly as the conventional elastic bags with valves at both ends. The central part of the bag is for this purpose designed so as to ensure that, when the bag is in its collapsed position, the two valves will be located within the area which is surrounded by the central part and will thus be protected from being damaged.
The features and advantages of the present invention will become further apparent from the following detailed description thereof which is to be read with reference to the accompanying drawings in which:
FIGURE 1 shows a perspective view of an elastic bag according to the invention which is connected to a face mask;
FIGURE 2 shows a perspective view of the elastic bag according to FIGURE 1 in the collapsed position; while FIGURE 3 shows an axial cross section of the upper part of the elastic bag according to FIGURE 1.
Referring to the drawings, the elastic: bag 1 according to the invention consists of an elastic material, for example, of natural or synthetic rubber or a suitable thermoplastic. It comprises a central part 2 and two outer parts 3 and 4 which are integrally connected thereto. The bag 1 may be made of two equal halves which are firmly secured and sealed to each other at 5 and consist of one half of the central part 2 together with the outer part 2 and of the other half of the central. part 2 together with the other outer part 4.
The diameter of the outer parts 3 and 4 decreases from the central part 2 toward the outer ends and they are provided with peripherally extending constrictions 6, 7 and 8, 9 which are spaced from each other at suitable distances in the axial direction of the expanded bag. The outer ends of the outer parts 3 and 4 are provided With apertures into which valves 13 and 14 are inseited. Valve 13 may be connected to a face mask 15.
If the bag 1 according to FIGURE 1 is compressed in its axial direction, the outer parts 3 and 4 will be folded inwardly at the constrictions 6, 7 and 8, 9. The annular wall portions 16 and 17 are then inwardly bent at an angle of approximately about the edges 18 and 19 into the central part 2, while the annular wall portions 20 and 21 retain their original positions relative to the axis of the axially symmetrical bag 1. During the compression of the bag in its axial direction, the annular wall portions 22 and 23 will likewise be inwardly bent at an angle of approximately 180 about the constrictions 7 and 9. However, when these wall portions are bent beyond a certain dead-center position, they will carry out the further inward movement with a snap action. At the same time, the inwardly bent wall portions 16, 17, 22 and 23 are given a certain tension which insures that the inwardly folded outer bag parts 3 and 4 will be retained in their respective positions within the central bag part 2. It is therefore necessary to apply a certain amount of force in order to overcome the tension of the inwardly bent wall portions 16, 17, 22, and 23 and the dead-center portions between them in order to bend these parts again outwardly so that the bag 1 will return to its expanded operative position, as shown in FIGURE 1.
The constrictions 6 to 9 may also be provided in the form of recessed or projecting corrugations. The bag 1 may in this case be made of a uniform wall thickness.
In its collapsed position, the bag 1 may be stored in a container or pouch, for example, in such a manner that one end of the bag is held by a snap button on the bottom of the container or pouch so as to permit the bag 1 to be opened to its full size by a single manipulation. The gripping force of the snap button may then be slightly stronger than the force which is required for expanding the bag, so that at the end of the expanding movement the elastic bag 1 may be pulled completely out of the container or panel.
Although my invention has been illustrated and described with reference to the preferred embodiment thereof, I wish to have it understood that it is in no way limited to the details of such embodiment but is capable of numerous modifications within the scope of the appended claim.
Having thus fully disclosed my invention, what I claim is:
1. An expansible bag for artificial respiration apparatus, comprising a first ring-shaped part, a second ringshaped part arranged on each end of said first ring-shaped part and concentrically arranged in respect to said first O ring-shaped part and being of a size to fit into said first ring-shaped part, said second ring-shaped part being joined to said first ring-shaped part around its periphery adjacent one side by an elastic portion thereof of reduced wall thickness, said second ring-shaped part being collapsible Within said first ring-shaped part and constructed so as to be retainable therein Without holding means for reducing the axial length of said bag, and means closing each end of said first and second ring-shaped parts, each said second ring-shaped part being connected to said first ring-shaped part by an elastic portion of reduced wall thickness and each being collapsible Within said first ringshaped part for reducing the axial length of the bag, said first ring-shaped part being of thin walled construction for sensing variations of pressure within the bag through the wall, said means closing each end of said first and second ring-shaped parts, comprising a valve closing the outer end of each of said second ring-shaped parts, said second ring-shaped parts being collapsible Within said first ring-shaped parts and being automatically retainable therein upon collapsing to reduce the axial length of the bag.
References Cited UNITED STATES PATENTS 2,833,448 5/1958 Lerner 222-209 2,834,296 5/1958 Neufeld 103-148 2,880,902 4/1959 Owen 220-8 2,886,084 5/1959 Davison 150-.5 3,009,459 11/1961 Ruben 230l69 3,201,111 8/1965 Afton 2151.5
l5 DONLEY I. STOCKING, Pril'nary Examiner.
\VILLIAM L. FREEH, Assistant Examiner.
Claims (1)
1. AN EXPANSIBLE BAG FOR ARTIFICIAL RESPIRATION APPARATUS, COMPRISING A FIRST RING-SHAPED PART, A SECOND RINGSHAPED PART ARRANGED ON EACH END OF SAID FIRST RING-SHAPED PART AND CONCENTRICALLY ARRANGED IN RESPECT TO SAID FIRST RING-SHAPED PART BEING OF A SIZE TO FIT INTO SAID FIRST RING-SHAPED PART, SAID SECOND RING-SHAPED PART BEING JOINED TO SAID FIRST RING-SHAPED PART AROUND ITS PERIPHERY ADJACENT ONE SIDE BY AN ELASTIC PORTION THEREOF OF REDUCED WALL THICKNESS, SAID SECOND RING-SHAPED PART BEING COLLAPSIBLE WITHIN SAID FIRST RING-SHAPED PART AND CONSTRUCTED SO AS TO BE RETAINABLE THEREIN WITHOUT HOLDING MEANS FOR FEDUCING THE AXIAL LENGTH OF SAID BAG, AND MEANS CLOSING EACH END OF SAID FIRST AND SECOND RING-SHAPED PARTS, EACH SAID SECOND RING-SHAPED PART BEING CONNECTED TO SAID FIRST RING-SHAPED PART BY AN ELASTIC PORTION OF REDUCED WALL THICHNESS AND EACH BEING COLLAPSIBLE WITHIN SAID FIRST RINGSHAPED PART FOR REDUCING THE AXIAL LENGTH OF THE BAG, SAID FIRST RING-SHAPED PART BEING OF THIN WALLED CONSTRUCTION FOR SENSING VARIATIONS OF PRESSURE WITHIN THE BAG THROUGH FOR WALL, SAID MEANS CLOSING EACH END OF SAID AND SECOND RING-SHAPED PARTS, COMPRISING A VALVE CLOSING THE OUTER END OF EACH OF SAID SECOND RING-SHAPED PARTS, SAID SECOND RING-SHAPED PARTS BEING COLLAPSIBLE WITHIN SAID FIRST RING-SHAPD PARTS AND BEING AUTOMATICALLY RETAINABLE THEREIN UPON COLLAPSING TO REDUCE THE AXIAL LENGTH OF THE BAG.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO15364864 | 1964-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3363833A true US3363833A (en) | 1968-01-16 |
Family
ID=19908979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US464126A Expired - Lifetime US3363833A (en) | 1964-06-15 | 1965-06-15 | Elastic bag for artificial respiration apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US3363833A (en) |
DE (3) | DE1913425U (en) |
FR (1) | FR1436528A (en) |
GB (1) | GB1112298A (en) |
NL (1) | NL146054B (en) |
Cited By (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4532923A (en) * | 1983-08-02 | 1985-08-06 | D-Two Systems International Inc. | Air bag |
US4774941A (en) * | 1983-05-04 | 1988-10-04 | Intertech Resources Inc. | Resuscitator bag |
US5226793A (en) * | 1991-05-23 | 1993-07-13 | Stovall Kalena D | Balloon pump |
US5233977A (en) * | 1990-02-02 | 1993-08-10 | Marquest Medical Products, Inc. | Anesthesia/breather bag with a roughened exterior surface |
US5359998A (en) * | 1992-10-23 | 1994-11-01 | Lloyd Lee J | Manual resuscitator |
US5501214A (en) * | 1994-09-26 | 1996-03-26 | Respironics, Inc. | Non-rebreathing valve and valve element therefor |
US5520173A (en) * | 1993-12-08 | 1996-05-28 | Heraeus Instruments Gmbh | Ventilation bag |
EP0743075A2 (en) * | 1995-05-16 | 1996-11-20 | Willy Rüsch Ag | Resuscitation bag |
US5749358A (en) * | 1996-10-10 | 1998-05-12 | Nellcor Puritan Bennett Incorporated | Resuscitator bag exhaust port with CO2 indicator |
US6006748A (en) * | 1996-10-16 | 1999-12-28 | Resmed Limited | Vent valve apparatus |
US6029660A (en) * | 1996-12-12 | 2000-02-29 | Resmed Limited | Substance delivery apparatus |
US6044844A (en) * | 1996-12-02 | 2000-04-04 | Resmed Limited | Mask and harness assembly |
USD423096S (en) * | 1997-02-25 | 2000-04-18 | Resmed Limited | Nasal mask cushion |
USD428987S (en) * | 1997-02-25 | 2000-08-01 | Resmed Limited | Nasal mask shell |
US6112746A (en) * | 1996-07-26 | 2000-09-05 | Resmed Limited | Nasal mask and mask cushion therefor |
US6119693A (en) * | 1998-01-16 | 2000-09-19 | Resmed Limited | Forehead support for facial mask |
US6123071A (en) * | 1993-06-18 | 2000-09-26 | Resmed Limited | Facial masks for assisted respiration or CPAP |
US6123082A (en) * | 1996-12-18 | 2000-09-26 | Resmed Limited | Device for preventing or reducing the passage of air through the mouth |
USD435650S (en) * | 1997-02-25 | 2000-12-26 | Resmed Limited | Combined nasal mask shell and cushion |
EP1201259A1 (en) * | 2000-10-31 | 2002-05-02 | Institut für Aerosol-Medizin InAMed GmbH | Bag for inhalation |
US6427687B1 (en) * | 1991-10-15 | 2002-08-06 | Mallinckrodt, Inc. | Resuscitator regulator with carbon dioxide detector |
US6494207B1 (en) | 1996-12-02 | 2002-12-17 | Resmed Limited | Harness assembly for a nasal mask |
US20030019495A1 (en) * | 2001-05-18 | 2003-01-30 | Palkon David J. | Mask cushion and method of using same |
US6513526B2 (en) | 1996-07-26 | 2003-02-04 | Resmed Limited | Full-face mask and mask cushion therefor |
US20030034034A1 (en) * | 1999-06-18 | 2003-02-20 | Resmed Limited | Forehead support for facial mask |
US6527011B1 (en) | 2000-05-18 | 2003-03-04 | Robert F. Mantz | Flexible retainer ring for duck bill valve |
US6561191B1 (en) | 1997-02-10 | 2003-05-13 | Resmed Limited | Mask and a vent assembly therefor |
US6561190B1 (en) | 1997-02-10 | 2003-05-13 | Resmed Limited | Mask and a vent assembly therefor |
US20030221691A1 (en) * | 2000-10-19 | 2003-12-04 | Achim Biener | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US20040045550A1 (en) * | 2002-01-01 | 2004-03-11 | Bernd Lang | Breathing mask arrangement and a forehead support device for same |
US20040064067A1 (en) * | 2002-10-01 | 2004-04-01 | Scimed Life Systems, Inc. | Fluid pressure-actuated medical device |
US20040182398A1 (en) * | 2003-03-22 | 2004-09-23 | Tom Sprinkle | Nasal mask |
USD498529S1 (en) | 1996-07-26 | 2004-11-16 | Resmed Limited | Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP) |
US20050005940A1 (en) * | 2003-04-10 | 2005-01-13 | Resmed Limited | Mask with integral cushion and forehead piece |
US20050022820A1 (en) * | 2003-05-05 | 2005-02-03 | Kwok Philip R. | Forehead support for facial mask |
US20050139219A1 (en) * | 1999-03-29 | 2005-06-30 | Resmed Limited | Forehead support for facial mask |
US20050241644A1 (en) * | 2004-04-09 | 2005-11-03 | Resmed Limited | Nasal assembly |
US20060191538A1 (en) * | 2001-10-22 | 2006-08-31 | Map Medizin-Technologie Gmbh | Application device for breathing mask arrangement |
US20060196509A1 (en) * | 2000-05-15 | 2006-09-07 | Resmed Limited | Respiratory mask having gas washout vent & gas washout vent assembly for a respiratory mask |
US20070078307A1 (en) * | 2005-09-30 | 2007-04-05 | Debreczeny Martin P | Sensor for tissue gas detection and technique for using the same |
US20070083094A1 (en) * | 2005-10-11 | 2007-04-12 | Colburn Joel C | Medical sensor and technique for using the same |
US7290546B2 (en) | 2002-03-22 | 2007-11-06 | Invacare Corporation | Nasal mask |
US7320323B2 (en) | 2001-10-22 | 2008-01-22 | Map Medizin-Technologie Gmbh | Breathing mask device and application device and frontal support device thereof |
US20080066761A1 (en) * | 2006-09-18 | 2008-03-20 | Invacare Corporation | Breathing mask |
US20080076993A1 (en) * | 2006-09-27 | 2008-03-27 | Nellcor Puritan Bennett Incorporated | Medical sensor and technique for using the same |
US20080077036A1 (en) * | 2006-09-25 | 2008-03-27 | Baker Clark R | Carbon dioxide-sensing airway products and technique for using the same |
US20080075633A1 (en) * | 2006-09-25 | 2008-03-27 | Rafael Ostrowski | Carbon dioxide detector having borosilicate substrate |
US20080078394A1 (en) * | 2006-09-25 | 2008-04-03 | Rafael Ostrowski | Carbon dioxide detector having borosilicate substrate |
US20080081003A1 (en) * | 2006-09-25 | 2008-04-03 | Rafael Ostrowski | Carbon dioxide detector having borosilicate substrate |
US20080083265A1 (en) * | 2006-09-25 | 2008-04-10 | Rafael Ostrowski | Carbon dioxide detector having borosilicate substrate |
US20080257354A1 (en) * | 2007-04-19 | 2008-10-23 | Resmed Limited | Cushion and cushion to frame assembly mechanism for patient interface |
US20080257345A1 (en) * | 2003-04-16 | 2008-10-23 | Trudell Medical International | Antistatic medication delivery apparatus |
WO2009047763A1 (en) * | 2007-10-09 | 2009-04-16 | Micro Bvm Ltd. | Respiration bag |
US20090165801A1 (en) * | 2007-12-31 | 2009-07-02 | Nellcor Puritan Bennett Llc | Carbon dioxide detector having an acrylic based substrate |
US20090246797A1 (en) * | 2008-03-28 | 2009-10-01 | Nellcor Puritan Bennett Llc | Medical device for the assessment of internal organ tissue and technique for using the same |
US7811276B2 (en) | 2005-11-10 | 2010-10-12 | Nellcor Puritan Bennett Llc | Medical sensor and technique for using the same |
US20110056498A1 (en) * | 2001-09-07 | 2011-03-10 | Resmed Limited | Forehead pad for respiratory mask |
US8353294B2 (en) | 2004-06-16 | 2013-01-15 | Resmed Limited | Respiratory mask assembly |
US8459252B2 (en) | 2002-05-02 | 2013-06-11 | Pari Innovative Manufacturers, Inc. | Aerosol medication inhalation system |
US8485192B2 (en) | 2005-01-12 | 2013-07-16 | Resmed Limited | Cushion for patient interface |
US8505535B2 (en) | 2003-05-02 | 2013-08-13 | Resmed Limited | Mask system |
US8517023B2 (en) | 2007-01-30 | 2013-08-27 | Resmed Limited | Mask system with interchangeable headgear connectors |
US8522784B2 (en) | 2008-03-04 | 2013-09-03 | Resmed Limited | Mask system |
US8522785B2 (en) | 2002-08-05 | 2013-09-03 | Resmed Limited | Inextensible headgear and CPAP or ventilator mask assembly with the same |
USRE45068E1 (en) | 2000-04-11 | 2014-08-12 | Trudell Medical International | Aerosol delivery apparatus |
US8944061B2 (en) | 2005-10-14 | 2015-02-03 | Resmed Limited | Cushion to frame assembly mechanism |
US9381316B2 (en) | 2005-10-25 | 2016-07-05 | Resmed Limited | Interchangeable mask assembly |
US9700689B2 (en) | 2002-05-21 | 2017-07-11 | Trudell Medical International | Medication delivery apparatus and system and methods for the use and assembly thereof |
US9802021B2 (en) | 2002-12-06 | 2017-10-31 | Fisher & Paykel Healthcare Limited | Mouthpiece |
US11331447B2 (en) | 2008-03-04 | 2022-05-17 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US11969552B2 (en) | 2022-06-28 | 2024-04-30 | ResMed Pty Ltd | Mask system with radially positioned vent holes |
Families Citing this family (2)
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FR2940129B1 (en) * | 2008-12-22 | 2011-09-02 | Protecsom | COMPACTABLE INHALATION DEVICE IN ELASTOMERIC MATERIAL |
WO2010018146A1 (en) * | 2008-08-12 | 2010-02-18 | Protecsom | Compactable inhaling device |
Citations (6)
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US2833448A (en) * | 1954-08-31 | 1958-05-06 | Gillette Co | Dispenser |
US2834296A (en) * | 1953-11-23 | 1958-05-13 | Delman Co | Pump unit for windshield clearing systems |
US2880902A (en) * | 1957-06-03 | 1959-04-07 | Owsen Peter | Collapsible article |
US2886084A (en) * | 1958-07-30 | 1959-05-12 | Delphine L Davison | Collapsible double wall container |
US3009459A (en) * | 1956-11-05 | 1961-11-21 | Ruben Henning | Apparatus for artificial respiration |
US3201111A (en) * | 1963-11-12 | 1965-08-17 | Afton Leonard | Multi-purpose, inherently biased, selfinflatable bellows |
-
1965
- 1965-01-22 DE DEL38826U patent/DE1913425U/en not_active Expired
- 1965-01-22 DE DE1965L0049776 patent/DE1616421A1/en active Pending
- 1965-01-22 DE DE6600376U patent/DE6600376U/en not_active Expired
- 1965-05-31 NL NL656506877A patent/NL146054B/en not_active IP Right Cessation
- 1965-06-01 GB GB23367/65A patent/GB1112298A/en not_active Expired
- 1965-06-14 FR FR20647A patent/FR1436528A/en not_active Expired
- 1965-06-15 US US464126A patent/US3363833A/en not_active Expired - Lifetime
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US2834296A (en) * | 1953-11-23 | 1958-05-13 | Delman Co | Pump unit for windshield clearing systems |
US2833448A (en) * | 1954-08-31 | 1958-05-06 | Gillette Co | Dispenser |
US3009459A (en) * | 1956-11-05 | 1961-11-21 | Ruben Henning | Apparatus for artificial respiration |
US2880902A (en) * | 1957-06-03 | 1959-04-07 | Owsen Peter | Collapsible article |
US2886084A (en) * | 1958-07-30 | 1959-05-12 | Delphine L Davison | Collapsible double wall container |
US3201111A (en) * | 1963-11-12 | 1965-08-17 | Afton Leonard | Multi-purpose, inherently biased, selfinflatable bellows |
Cited By (249)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4774941A (en) * | 1983-05-04 | 1988-10-04 | Intertech Resources Inc. | Resuscitator bag |
US4532923A (en) * | 1983-08-02 | 1985-08-06 | D-Two Systems International Inc. | Air bag |
US5233977A (en) * | 1990-02-02 | 1993-08-10 | Marquest Medical Products, Inc. | Anesthesia/breather bag with a roughened exterior surface |
US5226793A (en) * | 1991-05-23 | 1993-07-13 | Stovall Kalena D | Balloon pump |
US6427687B1 (en) * | 1991-10-15 | 2002-08-06 | Mallinckrodt, Inc. | Resuscitator regulator with carbon dioxide detector |
US5359998A (en) * | 1992-10-23 | 1994-11-01 | Lloyd Lee J | Manual resuscitator |
US6123071A (en) * | 1993-06-18 | 2000-09-26 | Resmed Limited | Facial masks for assisted respiration or CPAP |
US5520173A (en) * | 1993-12-08 | 1996-05-28 | Heraeus Instruments Gmbh | Ventilation bag |
US5501214A (en) * | 1994-09-26 | 1996-03-26 | Respironics, Inc. | Non-rebreathing valve and valve element therefor |
EP0743075A2 (en) * | 1995-05-16 | 1996-11-20 | Willy Rüsch Ag | Resuscitation bag |
EP0743075A3 (en) * | 1995-05-16 | 1997-05-21 | Ruesch Willy Ag | Resuscitation bag |
US6634358B2 (en) | 1996-07-26 | 2003-10-21 | Resmed Limited | Nasal mask cushion assembly |
US6701927B2 (en) | 1996-07-26 | 2004-03-09 | Resmed Limited | Full-face mask and mask cushion therefor |
US7950392B2 (en) | 1996-07-26 | 2011-05-31 | Resmed Limited | Cushion and mask therefor |
US8522783B2 (en) | 1996-07-26 | 2013-09-03 | Resmed Limited | Cushion and mask therefor |
US6112746A (en) * | 1996-07-26 | 2000-09-05 | Resmed Limited | Nasal mask and mask cushion therefor |
US8636006B2 (en) | 1996-07-26 | 2014-01-28 | Resmed Limited | Mask |
US6871649B2 (en) | 1996-07-26 | 2005-03-29 | Resmed Limited | Nasal mask cushion assembly |
USD498529S1 (en) | 1996-07-26 | 2004-11-16 | Resmed Limited | Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP) |
US8813748B2 (en) | 1996-07-26 | 2014-08-26 | Resmed Limited | Full-face mask and mask cushion therefor |
US6357441B1 (en) | 1996-07-26 | 2002-03-19 | Resmed Limited | Nasal mask and mask cushion therefor |
US20040094159A1 (en) * | 1996-07-26 | 2004-05-20 | Resmed Limited | Breathing mask and mask cushion therefor |
US7069933B2 (en) | 1996-07-26 | 2006-07-04 | Resmed Limited | Breathing mask and mask cushion therefor |
US7178527B2 (en) | 1996-07-26 | 2007-02-20 | Resmed Limited | Nasal mask and mask cushion therefor |
US20070107735A1 (en) * | 1996-07-26 | 2007-05-17 | Resmed Limited | Mask |
US9421339B2 (en) | 1996-07-26 | 2016-08-23 | Resmed Limited | Patient interface |
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US11395893B2 (en) | 2008-03-04 | 2022-07-26 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US8550084B2 (en) | 2008-03-04 | 2013-10-08 | Resmed Limited | Mask system |
US9757533B2 (en) | 2008-03-04 | 2017-09-12 | Resmed Limited | Mask system with snap-fit shroud |
US10751496B2 (en) | 2008-03-04 | 2020-08-25 | ResMed Pty Ltd | Mask system with shroud |
US9962511B2 (en) | 2008-03-04 | 2018-05-08 | Resmed Limited | Mask system with snap-fit shroud |
US11529486B2 (en) | 2008-03-04 | 2022-12-20 | ResMed Pty Ltd | Mask system with shroud having extended headgear connector arms |
US9950131B2 (en) | 2008-03-04 | 2018-04-24 | Resmed Limited | Mask system with snap-fit shroud |
US9027556B2 (en) | 2008-03-04 | 2015-05-12 | Resmed Limited | Mask system |
US9119931B2 (en) | 2008-03-04 | 2015-09-01 | Resmed Limited | Mask system |
US9770568B2 (en) | 2008-03-04 | 2017-09-26 | Resmed Limited | Mask system with snap-fit shroud |
US11833277B2 (en) | 2008-03-04 | 2023-12-05 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US20090246797A1 (en) * | 2008-03-28 | 2009-10-01 | Nellcor Puritan Bennett Llc | Medical device for the assessment of internal organ tissue and technique for using the same |
US11969552B2 (en) | 2022-06-28 | 2024-04-30 | ResMed Pty Ltd | Mask system with radially positioned vent holes |
Also Published As
Publication number | Publication date |
---|---|
DE6600376U (en) | 1969-01-23 |
NL6506877A (en) | 1965-12-16 |
FR1436528A (en) | 1966-04-22 |
DE1616421A1 (en) | 1969-08-28 |
NL146054B (en) | 1975-06-16 |
DE1913425U (en) | 1965-04-08 |
GB1112298A (en) | 1968-05-01 |
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