US4244363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable anesthesia circuit
Assignee: Individual
•
Filing: 1979-05-14
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Granted: 1981-01-13
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Expires: 1999-05-14
Abstract
Abstract A breathing device employed in administering anesthetic gases to patients in a respirating system in which the exhaled gases are passed to the atmosphere rather than captured and rebreathed. The circuit herein defined is a simple, reliable and economical anesthesia circuit particularly designed for use on children and infants, and that is disposable, and that may be adjusted during use.
Inventors
- 👤 Robert W. Moore, Jr.
- 👤 Stanley C. Weinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:06
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/08; A61M16/0057; A61M16/0078
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
In a disposable anesthesia circuit, a flexible breathing bag, a rigid tube having one end connected to said bag in flow relation therewith and a gas-air mixture inlet housing having a passageway extending into said tube, a hose mounted on said inlet housing communicating with said passageway and adapted to be connected to a source of supply of gas-air mixture and adapter means connected to the other end of said tube for connection to a patient an adjustable exhaust valve mounted in said bag, said valve having a male and a female component, each component having an enlarged knurled portion for rotation of said components relative to each other, said male component having a longitudinal slot, and said female portion having a transverse elongated slot, the exposed slot area of the male member increasing as the female member is rotated in one direction on said male member and descreased when said female member is rotated in the other direction and said female component having an escape passageway in the extended end thereof.
Claim 2
Dependent Claim
172 words
In a disposable anesthesia circuit, a flexible breathing bag, a rigid tube having one end connected to said bag in flow relation therewith and a gas-air mixture inlet housing having a passageway extending into said tube, a hose mounted on said inlet housing communicating with said passageway and adapted to be connected to a source of supply of gas-air mixture and adapter means connected to the other end of said tube for connection to a patient an adjustable exhaust valve mounted in said bag, said valve having a male and a female component, each component having an enlarged knurled portion for rotation of said components relative to each other, said male component having a longitudinal slot, and said female portion having a transverse elongated slot, the exposed slot area of the male member increasing as the female member is rotated in one direction on said male member and descreased when said female member is rotated in the other direction and said female component having an escape passageway in the extended end thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |