Patent US4275725A successfully refreshed from Google Patents.
US3625221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flap-trol suction catheter
Assignee: Sherwood Medical Co
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Filing: 1969-07-29
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Granted: 1971-12-07
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Expires: 1989-07-29
Abstract
Abstract An airway suction catheter for use in aspirating applications. The catheter tube is provided adjacent a distal end thereof with an aperture for varying the suction. A manually operable valve is carried on the catheter adjacent the aperture for adjustably closing the aperture and correspondingly adjusting the suction.
Inventors
- 👤 Joseph H Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:17
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/741; A61M1/7411
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
In a suction catheter having an elongated suction tube provided with a portion defining an aperture for admitting air into said tube to vary the suction effect of the catheter, means for adjustably closing said aperture comprising a resilient member having a first portion carried on said tube adjacent said aperture and a second portion yieldingly spaced adjacent said aperture and resiliently manually deflectable progressively across the aperture to provide an infinite adjustment of the closure of said aperture, said second portion having means for returning said second portion to the spaced relationship upon release thereof said means for returning said second portion comprising an arcuately turned end portion arranged to be progressively straightened into closing relationship to said aperture.
Claim 2
Dependent Claim
120 words
In a suction catheter having an elongated suction tube provided with a portion defining an aperture for admitting air into said tube to vary the suction effect of the catheter, means for adjustably closing said aperture comprising a resilient member having a first portion carried on said tube adjacent said aperture and a second portion yieldingly spaced adjacent said aperture and resiliently manually deflectable progressively across the aperture to provide an infinite adjustment of the closure of said aperture, said second portion having means for returning said second portion to the spaced relationship upon release thereof said means for returning said second portion comprising an arcuately turned end portion arranged to be progressively straightened into closing relationship to said aperture.
Claim 3
Dependent Claim
29 words
The suction catheter means of claim 1 wherein said second portion is adapted to be adjustably positioned by engagement therewith as by a single one of the user''s finger.
Claim 4
Dependent Claim
37 words
The suction catheter means of claim 1 wherein said second portion is arranged to permit adjustable positioning thereof without engagement by the user''s finger with any surface portion thereof confronting the aperture in the aperture closing position.
Claim 5
Dependent Claim
27 words
The suction catheter means of claim 1 wherein the surface of said second portion extending across the aperture in the aperture closing arrangement defines a sterile surface.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |