Patent US4964849A successfully refreshed from Google Patents.
US4964849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-way suction apparatus for surgical procedures
Assignee: Individual
•
Filing: 1986-01-06
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Granted: 1990-10-23
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Expires: 2006-01-06
Abstract
Abstract A self-contained two-way suction device for use in surgical operations provides a suction nozzle and a two-way valve selectively determining communication between the nozzle and two parallel exhaust tubes for selectively providing return suction of shed blood to a heart-lung machine or other blood saver device and discard suction of saline solution or the like to a discharge location or cell washing system.
Inventors
- 👤 Francis Robicsek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:16
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/76; Y; Y10; Y10S; Y10S604/00; Y10S604/902
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
117 words
A two-way suction apparatus for use in open heart surgical procedures and the like, comprising nozzle means adapted to be selectively manipulated and applied to a surgical area, exhaust means defining first and second parallel exhaust pathways communicating respectively with separate deposit locations, a source of suction applied to each of said first and second exhaust pathways, and two-way valve means intermediate said nozzle means and said exhaust means for selectively controlling communication between said nozzle means and one or the other of said first and second exhaust pathways for directing suction flow from said surgical area into and thorugh said nozzle means and the actively communicative one of said exhaust pathways to its respective deposit location.
Claim 2
Dependent Claim
117 words
A two-way suction apparatus for use in open heart surgical procedures and the like, comprising nozzle means adapted to be selectively manipulated and applied to a surgical area, exhaust means defining first and second parallel exhaust pathways communicating respectively with separate deposit locations, a source of suction applied to each of said first and second exhaust pathways, and two-way valve means intermediate said nozzle means and said exhaust means for selectively controlling communication between said nozzle means and one or the other of said first and second exhaust pathways for directing suction flow from said surgical area into and thorugh said nozzle means and the actively communicative one of said exhaust pathways to its respective deposit location.
Claim 3
Dependent Claim
71 words
A two-way suction apparatus according to claim 1 and characterized further in that said first exhaust pathway communicates with a blood saver device for recirculation of suctioned material withdrawn from said surgical area and said second exhaust pathway communicates with a discharge device for discarding of suctioned material withdrawn from said surgical area, said valve means being biased to normally maintain said nozzle means in communication with said second exhaust pathway.
Claim 4
Dependent Claim
72 words
A two-way suction apparatus according to claim 1 and characterized further in that said first exhaust pathway communicates with a blood saver device for recirculation of suctioned material withdrawn from said surgical area and said second exhaust pathway communicates with a blood washing device for processing the suctioned material withdrawn from said surgical area, said valve means being biased to normally maintain said nozzle means in communication with said second exhaust pathway.
Claim 5
Dependent Claim
33 words
A two-way suction apparatus according to claim 1 and characterized further in that said exhaust means includes a longitudinal housing compactly containing said first and second exhaust pathways therethrough in essentially parallel relation.
Claim 6
Dependent Claim
26 words
A two-way suction apparatus according to claim 1 and characterized further in that said valve means includes button means for manual operation of said valve means.
Claim 7
Dependent Claim
26 words
A two-way suction apparatus according to claim 2 and characterized further in that said valve means includes button means for manual operation of said valve means.
Claim 8
Dependent Claim
26 words
A two-way suction apparatus according to claim 3 and characterized further in that said valve means includes button means for manual operation of said valve means.
References Cited (Backward Citations)
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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) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |