US3735751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lavage and cytology instrument
Assignee: Individual
•
Filing: 1971-06-08
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Granted: 1973-05-29
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Expires: 1991-06-08
Abstract
Abstract A device for use in proctosigmoidoscopic examinations for directing a pressure liquid, such as water, a saline solution and/or diagnostic dyes to a predetermined proctosigmoid zone and for withdrawing the injected fluid, feculent and mucoid debris associated therewith including first and second hollow parallel nonconcentric tubular members, means connecting one of the tubular members to a source of liquid under pressure and further conduit means selectively connecting the other of the hollow tubular members to a source of reduced pressure and/or a collector maintained at a reduced pressure. The withdrawing function and/or spraying may be continuous or intermittent.
Inventors
- 👤 S Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:48
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/005; A61B1/0051; A61B1/0055; A61B1/31; A61B10/00; A61B10/0045; A61B10/02; A61B10/04; A61M; A61M1/00; A61M1/71; A61M1/77; A61M1/774; A61B1/012; A61B1/015; A61M1/79
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
94 words
A device for use in proctosigmoidoscopic examinations comprising: first and second hollow tubular members arranged in generally parallel nonconcentric relationship; each of said first and second members terminating in open generally contiguous ends; means adapted to connect the other end of said first tubular member to a source of liquid under pressure; connection means adapted to be connected to a source of reduced pressure; a collector connected to said connection meand and maintained at a reduced pressure; means selectively connecting the other end of said second tube to said connection means or said collector.
Claim 2
Independent Claim
94 words
A device for use in proctosigmoidoscopic examinations comprising: first and second hollow tubular members arranged in generally parallel nonconcentric relationship; each of said first and second members terminating in open generally contiguous ends; means adapted to connect the other end of said first tubular member to a source of liquid under pressure; connection means adapted to be connected to a source of reduced pressure; a collector connected to said connection meand and maintained at a reduced pressure; means selectively connecting the other end of said second tube to said connection means or said collector.
Claim 3
Dependent Claim
15 words
The invention defined in claim 1 wherein said selective connecting means comprises a three-way valve.
Claim 4
Dependent Claim
23 words
The invention defined in claim 1 wherein said selective connecting means comprises a three-way valve and said collector comprises a removable sample tube.
Claim 5
Dependent Claim
25 words
The invention defined in claim 2 including a second valve means for controlling the flow of pressure liquid from a source to said first tube.
References Cited (Backward Citations)
US1843169A
Cited
US2148541A
Cited
US2142624A
Cited
GB865064A
Cited
US3526218A
Cited
US3626928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |