US5100377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical evacuation and irrigation device
Assignee: Covidien LP
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Filing: 1991-04-23
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Granted: 1992-03-31
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Expires: 2011-04-23
Abstract
Abstract An apparatus for selectively providing irrigation or evacuation to a patient during surgery which includes valve arrangements to prevent reflux of fluid and the drawing of irrigation fluid from a reservoir in the event the patient line becomes blocked.
Inventors
- 👤 Michael W. Freitas
- 👤 Wayne D. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:47
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/77; A61M1/772
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
An apparatus for the selective alternating of the passage of an irrigation fluid and the application of an evacuation vacuum through an endoscopic surgical instrument insertable into a patient, comprising: a body defining at least two passage ways therethrough; a first valve means located in the first passage way of said valve body to permit the selective opening and closing of a passageway to one of irrigation fluid and evacuation vacuum; and a second valve means to permit the selective opening and closing of a passage way for the other of irrigation fluid and evacuation vacuum.
Claim 2
Independent Claim
96 words
An apparatus for the selective alternating of the passage of an irrigation fluid and the application of an evacuation vacuum through an endoscopic surgical instrument insertable into a patient, comprising: a body defining at least two passage ways therethrough; a first valve means located in the first passage way of said valve body to permit the selective opening and closing of a passageway to one of irrigation fluid and evacuation vacuum; and a second valve means to permit the selective opening and closing of a passage way for the other of irrigation fluid and evacuation vacuum.
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) | 1995-03-31 | 1995-09-30 | 1996-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-31 | 1999-09-30 | 2000-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-31 | 2003-09-30 | 2004-03-31 | $7700.00 | Window Closed / Lapsed |