US3726274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-rebreathing valve assembly and compression bulb resuscitator using same
Assignee: Bird F M
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Filing: 1971-09-27
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Granted: 1973-04-10
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Expires: 1991-09-27
Abstract
Abstract A non-rebreathing valve assembly having a body formed of first and second parts with a circular diaphragm assembly disposed between the parts. The diaphragm assembly has a flexible circular diaphragm having its outer margin secured to the first and second parts. The diaphragm is provided with a plurality of holes spaced between the inner portion and the outer margin of the diaphragm which are normally closed by a one-way flapper valve member carried by the diaphragm assembly. The first part is provided with a centrally disposed exhaust opening which is adapted to be closed by the diaphragm assembly. The first part is also provided with a flow passage adapted to be placed in communication with a patient and with said holes in said diaphragm when said flapper valve is in open position. The second part has an inlet opening which is in communication with the other side of the diaphragm assembly. The second part if provided with a plurality of openings which open to ambient. A one-way flapper valve is carried by the second part and normally closes the openings. When utilized as a resuscitator, a compression bulb is secured to the inlet of the second part. For automatic operation, the inlet, in addition, is secured to a source of gas under pressure which is controlled by a controller.
Inventors
- 👤 F Bird
- 👤 H Pohndorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:24
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/20; A61M16/208; A61M16/10; A61M16/12; A61M16/122; A61M16/125; A61M16/127; A61M16/201; A61M16/206
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
183 words
In a non-rebreathing valve assembly adapted to be connected to the airway of a patient, a body, a diaphragm assembly disposed within the body and forming first and second chambers within the body on opposite sides of the diaphragm assembly, one portion of said body on one side of said diaphragm assembly being provided with an exhalation port venting said first chamber to ambient and an additional port in communication with said first chamber and adapted to be placed in communication with the airway of the patient, said diaphragm assembly having valve means movable to a position to occlude said expiratory port, said other portion of the body being formed with an inlet passage on the other side of tHe diaphragm assembly, said other portion having an opening therein venting said second chamber to ambient, and one-way valve means carried by said body normally occluding said opening in said other portion, said valve means of said diaphragm assembly having at least one opening therein spaced from said expiratory port, and one-way valve means carried by said valve means for normally occluding said opening.
Claim 2
Dependent Claim
183 words
In a non-rebreathing valve assembly adapted to be connected to the airway of a patient, a body, a diaphragm assembly disposed within the body and forming first and second chambers within the body on opposite sides of the diaphragm assembly, one portion of said body on one side of said diaphragm assembly being provided with an exhalation port venting said first chamber to ambient and an additional port in communication with said first chamber and adapted to be placed in communication with the airway of the patient, said diaphragm assembly having valve means movable to a position to occlude said expiratory port, said other portion of the body being formed with an inlet passage on the other side of tHe diaphragm assembly, said other portion having an opening therein venting said second chamber to ambient, and one-way valve means carried by said body normally occluding said opening in said other portion, said valve means of said diaphragm assembly having at least one opening therein spaced from said expiratory port, and one-way valve means carried by said valve means for normally occluding said opening.
Claim 3
Dependent Claim
22 words
A valve assembly as in claim 1 wherein said last named one-way valve means is in the form of a flapper valve.
Claim 4
Dependent Claim
79 words
A valve assembly as in claim 1 wherein said diaphragm assembly includes a flexible diaphragm, a rigid plate carried by the central portion of said diaphragm and being of a size so as to cover said exhalation port, a plurality of openings formed in said diaphragm and in said plate outside the area used to occlude the exhalation port to establish communication between the first and second chambers and wherein said one-way valve means is carried by the plate.
Claim 5
Dependent Claim
39 words
An assembly as in claim 3 wherein said one-way valve means carried by said plate is in the form of a flexible flapper valve member carried by the plate and overlying said holes in the plate and the diaphragm.
Claim 6
Dependent Claim
30 words
A valve assembly as in claim 1 wherein said exhalation port is encircled by a valve seat and wherein said one-way valve means is adapted to engage said valve seat.
Claim 7
Dependent Claim
53 words
A valve assembly as in claim 1 together with a skirt generally enclosing said second portion, said skirt being adapted to receive a gas to supply the same in the vicinity of the openings venting the second chamber to the atmosphere, said skirt having an opening therein venting the same to the atmosphere.
Claim 8
Dependent Claim
39 words
A valve assembly as in claim 1 wherein said exhalation port is formed by a centrally disposed cylindrical extension which extends into the first chamber and wherein the additional port is formed by a coaxial passage surrounding said extension.
Claim 9
Dependent Claim
33 words
A valve assembly as in claim 4 wherein said diaphragm is disposed on one side of said plate and said resilient flapper valve member is disposed on the other side of said plate.
Claim 10
Dependent Claim
217 words
In a non-rebreathing valve assembly adapted to be connected to the airway of a patient, a body, a diaphragm assembly disposed within said body and forming first and second chambers within said body, one portion of said body on one side of said diaphragm assembly being formed with an extension having an expiratory port therein venting said first chamber to ambient, said cylindrical extension being adapted to be engaged by said diaphragm assembly to occlude said expiratory port, a plurality of holes in said diaphragm assembly spaced so that they are out of communication with said expiratory port, one-way valve means included as a part of the diaphragm assembly and normally occluding said openings to prevent communication between said first and second chambers, said one portion also having an additional extension with a port in communication with said first chamber, said port in said additional extension being adapted to be placed in communication with the airway of the patient, the other portion of the body on the other side of the diaphragm assembly being formed with an inlet passage in communication with said second chamber, a plurality of openings in said other part of said body venting said second chamber to ambient and one-way valve means carried by the body for normally occluding said last named openings.
Claim 11
Dependent Claim
217 words
In a non-rebreathing valve assembly adapted to be connected to the airway of a patient, a body, a diaphragm assembly disposed within said body and forming first and second chambers within said body, one portion of said body on one side of said diaphragm assembly being formed with an extension having an expiratory port therein venting said first chamber to ambient, said cylindrical extension being adapted to be engaged by said diaphragm assembly to occlude said expiratory port, a plurality of holes in said diaphragm assembly spaced so that they are out of communication with said expiratory port, one-way valve means included as a part of the diaphragm assembly and normally occluding said openings to prevent communication between said first and second chambers, said one portion also having an additional extension with a port in communication with said first chamber, said port in said additional extension being adapted to be placed in communication with the airway of the patient, the other portion of the body on the other side of the diaphragm assembly being formed with an inlet passage in communication with said second chamber, a plurality of openings in said other part of said body venting said second chamber to ambient and one-way valve means carried by the body for normally occluding said last named openings.
Claim 12
Dependent Claim
35 words
A valve as in claim 9 wherein said body is formed in first and second parts and wherein said diaphragm assembly includes a diaphragm having an annular lip clamped between said first and second parts.
Claim 13
Dependent Claim
105 words
A valve assembly as in claim 9 wherein said diaphragm assembly includes a flexible diaphragm secured to said body, a rigid plate secured to a central portion of said diaphragm and being of a size that is larger than the expiratory port, a plurality of spaced openings in said diaphragm and in said plate and being arranged so that they are out of communication with sAid expiratory port, said holes establishing communication between said first and second chambers, and a resilient flapper valve carried by said plate and overlying said openings, said flapper valve being adapted to engage said extension to occlude said expiratory port.
Claim 14
Dependent Claim
31 words
A valve assembly as in claim 11 wherein said body is provided with a passage which surrounds said extension for said expiratory port which is in communication with said additional extension.
Claim 15
Dependent Claim
204 words
In a compression bulb resuscitator for resuscitating a patient, a non-rebreathing valve assembly, said non-rebreathing valve assembly comprising a body, a diaphragm assembly disposed within the body and forming first and second chambers within the body, one portion of said body on one side of said diaphragm assembly being provided with an exhalation port venting said first chamber to ambient and an additional port in communication with said first chamber and adapted to be placed in communication with the airway of the patient, said diaphragm assembly having a valve means movable to a position to occlude said expiratory port, said valve means having at least one opening therein out of registration with said exhalation port, and one-way valve means forming a part of said valve means for occluding said opening, said other portion of the body being formed with an inlet passage on the other side of the diaphragm assembly in communication with said second chamber, said other portion having at least one opening therein venting said second chamber to ambient and one-way valve means carried by said body normally occluding said last named opening, and a compression bulb connected to said non-rebreathing valve assembly for supplying gas under pressure to said valve assembly.
Claim 16
Dependent Claim
204 words
In a compression bulb resuscitator for resuscitating a patient, a non-rebreathing valve assembly, said non-rebreathing valve assembly comprising a body, a diaphragm assembly disposed within the body and forming first and second chambers within the body, one portion of said body on one side of said diaphragm assembly being provided with an exhalation port venting said first chamber to ambient and an additional port in communication with said first chamber and adapted to be placed in communication with the airway of the patient, said diaphragm assembly having a valve means movable to a position to occlude said expiratory port, said valve means having at least one opening therein out of registration with said exhalation port, and one-way valve means forming a part of said valve means for occluding said opening, said other portion of the body being formed with an inlet passage on the other side of the diaphragm assembly in communication with said second chamber, said other portion having at least one opening therein venting said second chamber to ambient and one-way valve means carried by said body normally occluding said last named opening, and a compression bulb connected to said non-rebreathing valve assembly for supplying gas under pressure to said valve assembly.
Claim 17
Dependent Claim
39 words
A resuscitator as in claim 13 together with a source of gas under pressure, and means connected to the source of gas under pressure for supplying gas in the vicinity of said last named openings in said valve assembly.
Claim 18
Dependent Claim
44 words
A resuscitator as in claim 14 wherein said last named means includes a skirt secured to the body, said skirt having an opening therein open to ambient and means for supplying the gas to said skirt so that it is distributed within said skirt.
Claim 19
Dependent Claim
37 words
A resuscitator as in claim 13 together with a source of gas under pressure, an automatic controller connected to said source of gas, and means connecting said automatic controller to the inlet passage of said valve assembly.
Claim 20
Dependent Claim
19 words
A resuscitator as in claim 16 wherein said controller automatically controls the inspiratory and expiratory phases of the patient.
Claim 21
Dependent Claim
21 words
A resuscitator as in claim 17 wherein said compression bulb is always in communication with the inlet of the valve assembly.
Claim 22
Dependent Claim
63 words
A resuscitator as in claim 16 together with a venturi assembly connected between said controller and said inlet, said venturi assembly having a venturi-like passageway with its inlet end open to the atmosphere and its outlet end in communication with the inlet of the valve assembly and a nozzle connected to said controller for supplying a jet of gas into the venturi passageway.
Claim 23
Dependent Claim
43 words
A resuscitator as in claim 19 wherein said venturi assembly includes a check valve assembly mounted on the outlet end of the venturi-like passageway, said check valve assembly being yieldably urged into a position to normally close the outlet end of said passageway.
Claim 24
Dependent Claim
30 words
A resuscitator as in claim 13 together with means in communication with the second chamber of the valve assembly for venting the second chamber to ambient at a controlled rate.
Claim 25
Dependent Claim
106 words
In a valve assembly, a body and a diaphragm assembly disposed in the body and forming first and second chambers within the body on opposite sides of the diaphragm assembly, said body being formed with first and second passages in communication with said first chamber and a third passage in communication with said second chamber, said diaphragm assembly being movable to occlude said first passage in said body, said diaphragm assembly carrying one-waY valve means permitting gas to flow only from said second chamber to said first chamber, said body carrying one-way valve means permitting gas outside the body to only flow into said second chamber.
Claim 26
Dependent Claim
106 words
In a valve assembly, a body and a diaphragm assembly disposed in the body and forming first and second chambers within the body on opposite sides of the diaphragm assembly, said body being formed with first and second passages in communication with said first chamber and a third passage in communication with said second chamber, said diaphragm assembly being movable to occlude said first passage in said body, said diaphragm assembly carrying one-waY valve means permitting gas to flow only from said second chamber to said first chamber, said body carrying one-way valve means permitting gas outside the body to only flow into said second chamber.
Claim 27
Dependent Claim
46 words
A valve assembly as in claim 22 wherein said diaphragm assembly includes a diaphragm having its outer margin secured to said body and wherein said diaphragm is provided with at least one opening forming a part of said one-way valve means carried by said diaphragm assembly.
Claim 28
Dependent Claim
222 words
In a resuscitator for resuscitating a patient, a non-rebreathing valve assembly, said non-rebreathing valve assembly comprising a body, a diaphragm assembly disposed within the body and forming first and second chambers within the body, one portion of said body on one side of said diaphragm assembly being provided with an exhalation port venting said first chamber to ambient and an additional port in communication with said first chamber and adapted to be placed in communication with the airway of the patient, said diaphragm assembly having valve means movable to a position to occlude said expiratory port, said valve means having at least one opening therein out of registration with said exhalation port, one-way valve means forming a part of said valve means for occluding said opening, said other portion of said body being formed with an inlet passage on the other side of the diaphragm assembly in communication with said second chamber, said other portion having at least one opening therein, a venturi assembly mounted on said non-rebreathing valve assembly and having an outlet in communication with said opening in said other portion, said venturi assembly having a venturi-like passageway with its inlet end open to the atmosphere, means forming a nozzle mounted on said venturi assembly and means for supplying a jet of gas through said nozzle to said venturi-like passageway.
Claim 29
Dependent Claim
222 words
In a resuscitator for resuscitating a patient, a non-rebreathing valve assembly, said non-rebreathing valve assembly comprising a body, a diaphragm assembly disposed within the body and forming first and second chambers within the body, one portion of said body on one side of said diaphragm assembly being provided with an exhalation port venting said first chamber to ambient and an additional port in communication with said first chamber and adapted to be placed in communication with the airway of the patient, said diaphragm assembly having valve means movable to a position to occlude said expiratory port, said valve means having at least one opening therein out of registration with said exhalation port, one-way valve means forming a part of said valve means for occluding said opening, said other portion of said body being formed with an inlet passage on the other side of the diaphragm assembly in communication with said second chamber, said other portion having at least one opening therein, a venturi assembly mounted on said non-rebreathing valve assembly and having an outlet in communication with said opening in said other portion, said venturi assembly having a venturi-like passageway with its inlet end open to the atmosphere, means forming a nozzle mounted on said venturi assembly and means for supplying a jet of gas through said nozzle to said venturi-like passageway.
Claim 30
Dependent Claim
31 words
A resuscitator as in claim 24 together with a source of gas under pressure, automatic controller connected to said source of gas and means connecting said automatic controller to said nozzle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |