US3786809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for treating infants having breathing difficulties
Assignee: Tecna Corp
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Filing: 1972-09-07
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Granted: 1974-01-22
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Expires: 1992-09-07
Abstract
Abstract A device for treating infants having breathing difficulty has a rigid, externally grooved ring to one side of which is attached a clear, flexible, plastic envelope adapted to contain the infant''s head and provided with a connection for a flexible hose leading breathing gas under pressure from a suitable source into the envelope. The other side of the ring is spanned by a flexible, plastic diaphragm overlying the groove and held in engagement with the ring by a quickly removable contracting band deforming the diaphragm material into the groove. The diaphragm has an opening therein encircled by a collar adjustable into close contact with the infant''s neck. The envelope has a slider-closed major access opening and various fittings for minor access and monitoring connections.
Inventors
- 👤 S Kitrilakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:37
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61G; A61G10/00; A61G10/04; A61M16/0605; A61M16/0627; A61G11/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
A head-enclosing, flexible envelope having an upper sheet and a lower sheet united on all sides but having a margin defining an opening at one end, a rigid ring defining an aperture large enough to pass over a person''s head, means for securing said margin to said ring around said aperture, said ring being oF a size to hold said upper sheet of said un-inflated envelope away from the face of a person''s head inside said envelope, a flexible diaphragm having an opening and having a margin and disposed in position on said ring to span said aperture, means for holding the margin of said diaphragm on said ring, an annular member secured to said diaphragm in a position surrounding said opening therein, means for conforming said annular member to a person''s neck located in said diaphragm opening, and means effective when said annular member surrounds a person''s neck for inflating said envelope to move said upper wall farther away from the face of a person''s head inside said envelope.
Claim 2
Dependent Claim
170 words
A head-enclosing, flexible envelope having an upper sheet and a lower sheet united on all sides but having a margin defining an opening at one end, a rigid ring defining an aperture large enough to pass over a person''s head, means for securing said margin to said ring around said aperture, said ring being oF a size to hold said upper sheet of said un-inflated envelope away from the face of a person''s head inside said envelope, a flexible diaphragm having an opening and having a margin and disposed in position on said ring to span said aperture, means for holding the margin of said diaphragm on said ring, an annular member secured to said diaphragm in a position surrounding said opening therein, means for conforming said annular member to a person''s neck located in said diaphragm opening, and means effective when said annular member surrounds a person''s neck for inflating said envelope to move said upper wall farther away from the face of a person''s head inside said envelope.
Claim 3
Dependent Claim
30 words
A device as in claim 1 in which said ring is substantially elliptical and defines an elliptical shape for the adjacent parts of said envelope and said diaphragm engaged therewith.
Claim 4
Dependent Claim
33 words
A device as in claim 1 in which said annular member is a tube joined to said diaphragm and having a relatively flat and continuous inside surface, and means for inflating said tube.
Claim 5
Dependent Claim
33 words
A device as in claim 1 in which said envelope is made of flexible material distensible substantially into a predetermined shape by the pressure of the gas supplied thereto by said supplying means.
Claim 6
Dependent Claim
44 words
A device as in claim 1 for use on a substantially horizontal surface in which said ring has a lower supporting surface adapted to be disposed substantially horizontally and has side surfaces inclined to the horizontal when said lower supporting surface is substantially horizontal.
Claim 7
Dependent Claim
26 words
A device as in claim 1 including a rigid plate overlying the exterior of said diaphragm, and means for removably engaging said plate and said ring.
Claim 8
Dependent Claim
23 words
A device as in claim 6 in which said plate includes means defining a U-shaped cut-out portion adapted to pass a person''s neck.
Claim 9
Dependent Claim
21 words
A device as in claim 6 in which said ring and said plate are the only rigid supports for said envelope.
References Cited (Backward Citations)
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Cited
US1995583A
Cited
US2362935A
Cited
US2822803A
Cited
US2850011A
Cited
US3000379A
Cited
US3518991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |