US2843122A - Breathing mask - Google Patents

Breathing mask Download PDF

Info

Publication number
US2843122A
US2843122A US601313A US60131356A US2843122A US 2843122 A US2843122 A US 2843122A US 601313 A US601313 A US 601313A US 60131356 A US60131356 A US 60131356A US 2843122 A US2843122 A US 2843122A
Authority
US
United States
Prior art keywords
mask
tube
opening
tubing
oxygen
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
US601313A
Inventor
Charles H Hudson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US601313A priority Critical patent/US2843122A/en
Application granted granted Critical
Publication of US2843122A publication Critical patent/US2843122A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A61M16/06—Respiratory or anaesthetic masks
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0683—Holding devices therefor

Definitions

  • This invention relates to an improved breathing mask of the type utilized for administering oxygen or other gases to a patient. More particularly, the invention relates to improvements in the supply tube that leads from an oxygen source to the face mask, especially to attachment of the tube to the mask. It also relates to a novel structure of exhalation openings and to a novel relationship between these openings and the tube inlet.
  • One object of the invention is to provide a suitable breathing mask that can be so inexpensively produced that it is practical to use it as an expendable mask assigned to a particular patient and discarded once that person ceases to need it, instead of having to resterilize the mask.
  • Another object of the invention is to provide an inexpensive and practical structure forattaching to the mask the tube that conducts the oxygen into the mask and for preventing accidental movement of the installed tube.
  • Another object of the invention is to provide a simple, practical and inexpensive exhalation-opening structure in a very effective location.
  • Fig. 1 is a view in side elevation of an oxygen mask embodying the principles of the present invention.
  • the inlet tube which conducts gas therewithin is shown broken off to conserve space, and a part of the mask is broken away and shown in section.
  • Fig. 2 is a view in front elevation of the mask of Fig. 1.
  • Fig. 3 is an enlarged detail view taken along the line 3-3 in Fig. 1.
  • Fig. 4 is a view in perspective on a reduced scale showing the mask as worn by a person.
  • the mask preferably comprises a shaped shell arched to fit about the nose and mouth of a person.
  • the shell is preferably constructed from soft pliable polyethylene or a similar non-toxic plastic material and is relatively thin in cross-section so as to be soft and flexible.
  • Such a mask tends to mold itself to the face of each patient, is light in weight, and is sufliciently low in cost to warrant its use as a disposable or expendable hood.
  • the arch provides a shape generally resembling that of a persons nose with a downwardly and outwardly sloping bridge portion 11, outwardly converging side portions 12 and 13 and an upwardly sloped bottom surface 14 all meeting at a rounded dome-like portion 15.
  • the mask is provided with an outturned flange 16 for the sake of comfort, and a strap 17 is attachedby suitable means so as to hold the mask 10 snugly around the face of the person wearing it, as indicated in Fig. 4.
  • An inlet tube 20 leads from the source-of gas, such as a regulator attached to an oxygen cylinder, to the space 21 enclosed by the mask.
  • This tube 20 is preferably made of vinyl or similar type of plastic tubing so as to 2,343,122 Patented July 15, 1958 be flexible and somewhat compressible and preferably of a kind which will take somewhat of a compression fit.'
  • the inner end 22 of the tubing 20 is cut off at an angle, preferably about sixty degrees or more, so that the opening 23 lies on one side of the tubing 20 and the longer part 24 which lies on the other side acts as a shield.
  • the gas exhausted through the opening 23 therefore is exhausted from the open side with the shield.24 deflecting it.
  • the opening 23 may be and preferably is positioned substantially opposite the dome portion 15, while the shield 24 is arranged to lie opposite the face of the person, and the gas is therefore deflected against the. dome portion 15 of the mask 10 and diffused throughthe mask 10 without having a stream of the oxygen strike the patient.
  • a feature of the present invention lies in the inexpensive way in which the tube 20 is attached to the mask 10 and in which it is held with the opening 23v in the proper attitude.
  • a novel and very effective exhalation means is provided. All this is done by providing a thickened disc portion 25 on the bottom surface 14, made integrally with it or as an insert cemented or vulcanized to it.
  • the disc 25 is provided with a central perforation 26 surrounded by an annular portion 27 and by a series of exhalation openings 28 between a series of supporting spokes 29.
  • the diameter of the tubing 20 is larger than the diameter of the central perforation 26 through which the tubing 20 is to pass, but not so much greater as to preclude its insertion therethrough. Because of its flexibility the tube 20 can easily be inserted through the smaller diameter opening 26 with the sides of the opening pinching somewhat against the walls of the tube 20. One side 30 of the opening 26 is made flat to resist a tendency of the tube 20 to turn therein and to retain the end portion 22 in proper alignment. When once inserted correctly, the tubing 20 will, left in this position, assume enough compression set so that it will be very difficult to remove or rotate the tubing 20.
  • the portion 31 of the tube 20 becomes flat and the tubing 20 cannot be rotated or pulled out; also its flexibility means that it tends to stretch rather than slip through the opening 26, and the pinching of its walls and its tendency toward compression set create resistance to its displacement.
  • the location of the exhalation openings 28 is an efficient one from the standpoint of manufacturing, because all the openings in and out of the mask 10 are concentrated in one portion 25 which can be thickened so that the mask 10 is not weakened by the holes 2.6 and 28. Also the location is eflicient because the holes 28 surround the inlet tube 26 and assure a good mixing of the oxygen in the area 21.
  • a breathing mask including in combination a self-supporting shell having a lower surface portion including a perforate disc, said disc having a central opening and a series of exhalation openings spaced around said central opening; and a flexible tube having an outside diameter greater than the diameter of said central opening but compressible enough to be passed therethrough, said tube being held therein against movement due to the pinching against its wall, said tube terminating inside said shell.
  • a disposable breathing mask into which gas is conducted by a plastic tube, the plastic being capable of compression set, a disc having a central opening with one portion fiat, an annular portion therearound, and a series of exhalation openings around said annular portion between spokes supporting said annular portion.
  • a breathing mask for covering the nose and mouth of a persons face while supplying oxygen for breathing into the space enclosed thereby including in combination a self-supporting. shell of flexible non-toxic plastic having an inner, enclosed surface and an outer surface, said shell being arched to provide an upper and lower portion and provided in its lower portion with a first opening, around which are disposed a series of exhalation openings, said first opening being generally circular but with one side fiat; and a plastic tube for conducting oxygen into said space, said tube having an outside diameter greater than the diameter of said first opening but compressible enough for being passed therethrough and held against movement due to the pinching effect on the tubing wall, said tube passing into said space and terminating in an opening cut at an angle inclined toward said mask so that the opening is shielded from the persons face and deflects the oxygen against said inner mask surface and away from direct impingement of said persons face.

Description

July 15, 1958 c. H. HUDSON 4 ,122
BREATHING MASK Filed July 31, 1956 INVENTOR. Can/r15 fiuosolv United States Patent BREATHING MASK Charles H. Hudson, Los Angeles, Calif.
Application July 31, 1956, Serial No. 601,313
Claims. (Cl. 128-146) This invention relates to an improved breathing mask of the type utilized for administering oxygen or other gases to a patient. More particularly, the invention relates to improvements in the supply tube that leads from an oxygen source to the face mask, especially to attachment of the tube to the mask. It also relates to a novel structure of exhalation openings and to a novel relationship between these openings and the tube inlet.
One object of the invention is to provide a suitable breathing mask that can be so inexpensively produced that it is practical to use it as an expendable mask assigned to a particular patient and discarded once that person ceases to need it, instead of having to resterilize the mask.
Another object of the invention is to provide an inexpensive and practical structure forattaching to the mask the tube that conducts the oxygen into the mask and for preventing accidental movement of the installed tube.
Another object of the invention is to provide a simple, practical and inexpensive exhalation-opening structure in a very effective location.
Other objects and advantages of the invention will appear from the following description of a preferred embodiment presented in accordance with 35 U. S. C. 112.
In the drawings:
Fig. 1 is a view in side elevation of an oxygen mask embodying the principles of the present invention. The inlet tube which conducts gas therewithin is shown broken off to conserve space, and a part of the mask is broken away and shown in section.
Fig. 2 is a view in front elevation of the mask of Fig. 1.
Fig. 3 is an enlarged detail view taken along the line 3-3 in Fig. 1.
Fig. 4 is a view in perspective on a reduced scale showing the mask as worn by a person.
The mask preferably comprises a shaped shell arched to fit about the nose and mouth of a person. The shell is preferably constructed from soft pliable polyethylene or a similar non-toxic plastic material and is relatively thin in cross-section so as to be soft and flexible. Such a mask tends to mold itself to the face of each patient, is light in weight, and is sufliciently low in cost to warrant its use as a disposable or expendable hood. The arch provides a shape generally resembling that of a persons nose with a downwardly and outwardly sloping bridge portion 11, outwardly converging side portions 12 and 13 and an upwardly sloped bottom surface 14 all meeting at a rounded dome-like portion 15. Preferably the mask is provided with an outturned flange 16 for the sake of comfort, and a strap 17 is attachedby suitable means so as to hold the mask 10 snugly around the face of the person wearing it, as indicated in Fig. 4.
An inlet tube 20 leads from the source-of gas, such as a regulator attached to an oxygen cylinder, to the space 21 enclosed by the mask. This tube 20 is preferably made of vinyl or similar type of plastic tubing so as to 2,343,122 Patented July 15, 1958 be flexible and somewhat compressible and preferably of a kind which will take somewhat of a compression fit.'
In accordance with the invention disclosed in my copending application Serial No. 600,997, filed 'July 30, 1956, the inner end 22 of the tubing 20 is cut off at an angle, preferably about sixty degrees or more, so that the opening 23 lies on one side of the tubing 20 and the longer part 24 which lies on the other side acts as a shield. The gas exhausted through the opening 23 therefore is exhausted from the open side with the shield.24 deflecting it. The opening 23 may be and preferably is positioned substantially opposite the dome portion 15, while the shield 24 is arranged to lie opposite the face of the person, and the gas is therefore deflected against the. dome portion 15 of the mask 10 and diffused throughthe mask 10 without having a stream of the oxygen strike the patient.
A feature of the present invention lies in the inexpensive way in which the tube 20 is attached to the mask 10 and in which it is held with the opening 23v in the proper attitude. At the same time, a novel and very effective exhalation means is provided. All this is done by providing a thickened disc portion 25 on the bottom surface 14, made integrally with it or as an insert cemented or vulcanized to it. The disc 25 is provided with a central perforation 26 surrounded by an annular portion 27 and by a series of exhalation openings 28 between a series of supporting spokes 29.
As shown in Figs. 1 and 3, the diameter of the tubing 20 is larger than the diameter of the central perforation 26 through which the tubing 20 is to pass, but not so much greater as to preclude its insertion therethrough. Because of its flexibility the tube 20 can easily be inserted through the smaller diameter opening 26 with the sides of the opening pinching somewhat against the walls of the tube 20. One side 30 of the opening 26 is made flat to resist a tendency of the tube 20 to turn therein and to retain the end portion 22 in proper alignment. When once inserted correctly, the tubing 20 will, left in this position, assume enough compression set so that it will be very difficult to remove or rotate the tubing 20. Because of the flat portion 30 in the perforation 26, the portion 31 of the tube 20 becomes flat and the tubing 20 cannot be rotated or pulled out; also its flexibility means that it tends to stretch rather than slip through the opening 26, and the pinching of its walls and its tendency toward compression set create resistance to its displacement.
The location of the exhalation openings 28 is an efficient one from the standpoint of manufacturing, because all the openings in and out of the mask 10 are concentrated in one portion 25 which can be thickened so that the mask 10 is not weakened by the holes 2.6 and 28. Also the location is eflicient because the holes 28 surround the inlet tube 26 and assure a good mixing of the oxygen in the area 21.
In operation, after the mask is put onto the patient, oxygen is fed in through the tubing 20 and it is diff-used by the opening 23 through the mask 10 by striking the wall of the shell. The tubing 20 is held firmly by the perforation 26 and is held against rotation by the flat portion 30. The exhalation gases leave the mask through the openings 28.
To those skilled in the art to which this invention relates, many changes in construction and widely differing embodiments and applications of the invention will suggest themselves without departing from the spirit and scope of the invention. The disclosures and the description herein are purely illustrative and are not intended to be in any sense limiting.
I claim: 1. A breathing mask, including in combination a self-supporting shell having a lower surface portion including a perforate disc, said disc having a central opening and a series of exhalation openings spaced around said central opening; and a flexible tube having an outside diameter greater than the diameter of said central opening but compressible enough to be passed therethrough, said tube being held therein against movement due to the pinching against its wall, said tube terminating inside said shell.
2. The mask of claim 1 in which said tube terminates inside said shell in a directional opening and in which said central opening has a fiat side, whereby rotation of said tube is prevented.
3. The mask of claim 2 wherein said tube is plastic and assumes a compression set after installation to resist removal or rotation.
4. 'In a disposable breathing mask into which gas is conducted by a plastic tube, the plastic being capable of compression set, a disc having a central opening with one portion fiat, an annular portion therearound, and a series of exhalation openings around said annular portion between spokes supporting said annular portion.
5. A breathing mask for covering the nose and mouth of a persons face while supplying oxygen for breathing into the space enclosed thereby, including in combination a self-supporting. shell of flexible non-toxic plastic having an inner, enclosed surface and an outer surface, said shell being arched to provide an upper and lower portion and provided in its lower portion with a first opening, around which are disposed a series of exhalation openings, said first opening being generally circular but with one side fiat; and a plastic tube for conducting oxygen into said space, said tube having an outside diameter greater than the diameter of said first opening but compressible enough for being passed therethrough and held against movement due to the pinching effect on the tubing wall, said tube passing into said space and terminating in an opening cut at an angle inclined toward said mask so that the opening is shielded from the persons face and deflects the oxygen against said inner mask surface and away from direct impingement of said persons face.
References Cited in the file of this patent UNITED STATES PATENTS 1,948,945 Seijo Feb. 27, 1934 2,023,267 Rapt Dec. 3, 1935
US601313A 1956-07-31 1956-07-31 Breathing mask Expired - Lifetime US2843122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US601313A US2843122A (en) 1956-07-31 1956-07-31 Breathing mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US601313A US2843122A (en) 1956-07-31 1956-07-31 Breathing mask

Publications (1)

Publication Number Publication Date
US2843122A true US2843122A (en) 1958-07-15

Family

ID=24407039

Family Applications (1)

Application Number Title Priority Date Filing Date
US601313A Expired - Lifetime US2843122A (en) 1956-07-31 1956-07-31 Breathing mask

Country Status (1)

Country Link
US (1) US2843122A (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182659A (en) * 1962-01-15 1965-05-11 Gordon D Mcmaude Oxygen and inhalant mask
US4266540A (en) * 1978-10-13 1981-05-12 Donald Panzik Nasal oxygen therapy mask
US4377162A (en) * 1980-11-26 1983-03-22 Staver Peter J Facial protective device, and methods of constructing and utilizing same
US5474060A (en) * 1993-08-23 1995-12-12 Evans; David Face mask with gas sampling port
US20040069306A1 (en) * 2002-08-26 2004-04-15 John Moenning Dental anesthesia administration mask and eye shield
US20100071693A1 (en) * 2008-08-22 2010-03-25 Breathe Technologies Methods and devices for providing mechanical ventilation with an open airway interface
US8136527B2 (en) 2003-08-18 2012-03-20 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US8381729B2 (en) 2003-06-18 2013-02-26 Breathe Technologies, Inc. Methods and devices for minimally invasive respiratory support
US8418694B2 (en) 2003-08-11 2013-04-16 Breathe Technologies, Inc. Systems, methods and apparatus for respiratory support of a patient
US8567399B2 (en) 2007-09-26 2013-10-29 Breathe Technologies, Inc. Methods and devices for providing inspiratory and expiratory flow relief during ventilation therapy
US8770193B2 (en) 2008-04-18 2014-07-08 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8776793B2 (en) 2008-04-18 2014-07-15 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8925545B2 (en) 2004-02-04 2015-01-06 Breathe Technologies, Inc. Methods and devices for treating sleep apnea
US8939152B2 (en) 2010-09-30 2015-01-27 Breathe Technologies, Inc. Methods, systems and devices for humidifying a respiratory tract
US8955518B2 (en) 2003-06-18 2015-02-17 Breathe Technologies, Inc. Methods, systems and devices for improving ventilation in a lung area
US8985099B2 (en) 2006-05-18 2015-03-24 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US9132250B2 (en) 2009-09-03 2015-09-15 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
US9180270B2 (en) 2009-04-02 2015-11-10 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within an outer tube
US9962512B2 (en) 2009-04-02 2018-05-08 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with a free space nozzle feature
US10058668B2 (en) 2007-05-18 2018-08-28 Breathe Technologies, Inc. Methods and devices for sensing respiration and providing ventilation therapy
US10099028B2 (en) 2010-08-16 2018-10-16 Breathe Technologies, Inc. Methods, systems and devices using LOX to provide ventilatory support
US10252020B2 (en) 2008-10-01 2019-04-09 Breathe Technologies, Inc. Ventilator with biofeedback monitoring and control for improving patient activity and health
US10792449B2 (en) 2017-10-03 2020-10-06 Breathe Technologies, Inc. Patient interface with integrated jet pump
US11154672B2 (en) 2009-09-03 2021-10-26 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
AU2021200359B2 (en) * 2009-12-23 2023-04-06 Fisher & Paykel Healthcare Limited Patient interface and headgear

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948945A (en) * 1932-01-06 1934-02-27 Seijo Modesto Fernandez Mask for the absorption of poisonous gases
US2023267A (en) * 1932-02-25 1935-12-03 Rapt Joseph De Saint Feeding means for gas masks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948945A (en) * 1932-01-06 1934-02-27 Seijo Modesto Fernandez Mask for the absorption of poisonous gases
US2023267A (en) * 1932-02-25 1935-12-03 Rapt Joseph De Saint Feeding means for gas masks

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182659A (en) * 1962-01-15 1965-05-11 Gordon D Mcmaude Oxygen and inhalant mask
US4266540A (en) * 1978-10-13 1981-05-12 Donald Panzik Nasal oxygen therapy mask
US4377162A (en) * 1980-11-26 1983-03-22 Staver Peter J Facial protective device, and methods of constructing and utilizing same
US5474060A (en) * 1993-08-23 1995-12-12 Evans; David Face mask with gas sampling port
US20040069306A1 (en) * 2002-08-26 2004-04-15 John Moenning Dental anesthesia administration mask and eye shield
US7243649B2 (en) * 2002-08-26 2007-07-17 King Systems Corporation Anesthesia administration mask and eye shield
US8381729B2 (en) 2003-06-18 2013-02-26 Breathe Technologies, Inc. Methods and devices for minimally invasive respiratory support
US8955518B2 (en) 2003-06-18 2015-02-17 Breathe Technologies, Inc. Methods, systems and devices for improving ventilation in a lung area
US8418694B2 (en) 2003-08-11 2013-04-16 Breathe Technologies, Inc. Systems, methods and apparatus for respiratory support of a patient
US8136527B2 (en) 2003-08-18 2012-03-20 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US8573219B2 (en) 2003-08-18 2013-11-05 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US8925545B2 (en) 2004-02-04 2015-01-06 Breathe Technologies, Inc. Methods and devices for treating sleep apnea
US8985099B2 (en) 2006-05-18 2015-03-24 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US10058668B2 (en) 2007-05-18 2018-08-28 Breathe Technologies, Inc. Methods and devices for sensing respiration and providing ventilation therapy
US8567399B2 (en) 2007-09-26 2013-10-29 Breathe Technologies, Inc. Methods and devices for providing inspiratory and expiratory flow relief during ventilation therapy
US8776793B2 (en) 2008-04-18 2014-07-15 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8770193B2 (en) 2008-04-18 2014-07-08 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8677999B2 (en) 2008-08-22 2014-03-25 Breathe Technologies, Inc. Methods and devices for providing mechanical ventilation with an open airway interface
US20100071693A1 (en) * 2008-08-22 2010-03-25 Breathe Technologies Methods and devices for providing mechanical ventilation with an open airway interface
US10252020B2 (en) 2008-10-01 2019-04-09 Breathe Technologies, Inc. Ventilator with biofeedback monitoring and control for improving patient activity and health
US10695519B2 (en) 2009-04-02 2020-06-30 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within nasal pillows
US10709864B2 (en) 2009-04-02 2020-07-14 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles with an outer tube
US11896766B2 (en) 2009-04-02 2024-02-13 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation with gas delivery nozzles in free space
US9675774B2 (en) 2009-04-02 2017-06-13 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles in free space
US9962512B2 (en) 2009-04-02 2018-05-08 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with a free space nozzle feature
US10046133B2 (en) 2009-04-02 2018-08-14 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation for providing ventilation support
US9180270B2 (en) 2009-04-02 2015-11-10 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within an outer tube
US11707591B2 (en) 2009-04-02 2023-07-25 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles with an outer tube
US10232136B2 (en) 2009-04-02 2019-03-19 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation for treating airway obstructions
US9227034B2 (en) 2009-04-02 2016-01-05 Beathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation for treating airway obstructions
US11103667B2 (en) 2009-04-02 2021-08-31 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation with gas delivery nozzles in free space
US9132250B2 (en) 2009-09-03 2015-09-15 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
US10265486B2 (en) 2009-09-03 2019-04-23 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
US11154672B2 (en) 2009-09-03 2021-10-26 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
AU2021200359B2 (en) * 2009-12-23 2023-04-06 Fisher & Paykel Healthcare Limited Patient interface and headgear
US10099028B2 (en) 2010-08-16 2018-10-16 Breathe Technologies, Inc. Methods, systems and devices using LOX to provide ventilatory support
US8939152B2 (en) 2010-09-30 2015-01-27 Breathe Technologies, Inc. Methods, systems and devices for humidifying a respiratory tract
US9358358B2 (en) 2010-09-30 2016-06-07 Breathe Technologies, Inc. Methods, systems and devices for humidifying a respiratory tract
US10792449B2 (en) 2017-10-03 2020-10-06 Breathe Technologies, Inc. Patient interface with integrated jet pump

Similar Documents

Publication Publication Date Title
US2843122A (en) Breathing mask
US2859748A (en) Breathing mask
US4799477A (en) Rebreathing mask
US2843121A (en) Oxygen mask
US4469097A (en) Medical breathing apparatus
US3097642A (en) Face mask
US4549543A (en) Air filtering face mask
US4572177A (en) Oxygen therapy apparatus
US6581601B2 (en) Nasal mask with balloon exhalation valve
US2858828A (en) Respirator
US4231359A (en) Personal emergency breathing hood with nose blocking device
SE8401877D0 (en) Breathing mask
US2675803A (en) Gas feeding mask
JP2008119538A (en) Mask and ventilation assembly for it
JPS62120862A (en) Built-in type power gas mask
KR101536265B1 (en) Hood type gas mask
US2579942A (en) Protective hood
US2435167A (en) Protective device
US2998818A (en) Face piece
US3266490A (en) Pocket respirator
US4674136A (en) Safety mask construction
GB1034359A (en) Improvements in or relating to respiratory apparatus for use in closed-circuit respiration
US2848994A (en) Disposable breather mask
US2610624A (en) Pocket respirator
US2791216A (en) Respiratory masks