US5542929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction device for medical use
Assignee: Individual
•
Filing: 1994-11-15
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Granted: 1996-08-06
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Expires: 2014-11-15
Abstract
Abstract The invention relates to a suction device for medical use, in which an aspirator (1) as illustrated in FIG. 1 is proposed, which has one or a plurality of side openings (3), and which is provided with a valve (4) which responds to underpressure.
Inventors
- 👤 Walter Laabs
- 👤 Hans-Gunter Appel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:43
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/741; A61M1/7411; A61M1/84; A61M2205/00; A61M2205/42; Y; Y10; Y10S; Y10S604/00; Y10S604/902
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
A suction device for medical use, comprising: an aspirator comprising a tube having a circumference and provided with at least one side opening, said aspirator having an open suction end at one end of said tube through which matter may enter and a hose end for attachment to a suction device; and a foil covering said side opening, said foil having a slit therein having a thickness such that said foil is openable in response to a pressure differential thereacross, said open suction end being free of any obstruction and said at least one side opening being spaced along said tube a distance from said open suction end and said hose end.
Claim 2
Dependent Claim
112 words
A suction device for medical use, comprising: an aspirator comprising a tube having a circumference and provided with at least one side opening, said aspirator having an open suction end at one end of said tube through which matter may enter and a hose end for attachment to a suction device; and a foil covering said side opening, said foil having a slit therein having a thickness such that said foil is openable in response to a pressure differential thereacross, said open suction end being free of any obstruction and said at least one side opening being spaced along said tube a distance from said open suction end and said hose end.
Claim 3
Dependent Claim
23 words
The suction device of claim 1, wherein the at least one side opening is disposed at the suction end of the aspirator conduit.
Claim 4
Dependent Claim
23 words
The suction device of claim 1, wherein the at least one side opening is disposed at the hose end of the aspirator conduit.
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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) | 1999-08-06 | 2000-02-05 | 2000-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-06 | 2004-02-05 | 2004-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-06 | 2008-02-05 | 2008-08-06 | $7700.00 | Window Closed / Lapsed |