US4335719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation device
Assignee: Individual
•
Filing: 1981-02-04
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Granted: 1982-06-22
•
Expires: 2001-02-04
Abstract
Abstract In an irrigation device, irrigation fluid flows from a reservoir 12 via an inflow passage 11 to a bladder 22 and out through an outflow passage 15 to a collection bag 17. Debris such as blood clots which tend to form at inlet 23 is disturbed and removed by manipulation of the balloon 18 using a procedure of closing and opening clips at P, Q and R in sequence.
Inventors
- 👤 Samuel R. Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:14
CPC Classifications
A; A61; A61M; A61M3/00; A61M3/02; A61M3/0233; A61M3/0241; A61M3/0204; A61M3/0212; A61M3/022; A61M3/0279; A61M3/0283; A61M2210/00; A61M2210/10; A61M2210/1078; A61M2210/1085; A61M3/0254; A61M3/0262; A61M3/0287
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
195 words
A device for use in the irrigation of a body cavity comprises: (a) a first passageway having a liquid inlet at one end thereof, which is connectible to a source of irrigation liquid and a liquid outlet at the other end thereof which is connected to or connectible to the inlet passageway of a dual flow flow catheter, (b) a second passageway having a liquid inlet at one end thereof which is connected to or connectible to the outlet passageway of said dual flow catheter and a liquid outlet at the other end thereof, (c) an enlarged deformable portion of the second passageway located downstream of said one end of the second passageway, (d) first flow-controlling means downstream of the enlarged deformable portion to prevent or impede the flow of liquid through the second passageway, the arrangement being such that when the flow-controlling means are operated to prevent or impede the flow of liquid through the second passageway and the enlarged deformable portion is manipulated to reduce its volume, the flow of liquid in the second passageway upstream of the enlarged deformable portion and in the outlet passageway of the dual flow catheter is reversed.
Claim 2
Independent Claim
195 words
A device for use in the irrigation of a body cavity comprises: (a) a first passageway having a liquid inlet at one end thereof, which is connectible to a source of irrigation liquid and a liquid outlet at the other end thereof which is connected to or connectible to the inlet passageway of a dual flow flow catheter, (b) a second passageway having a liquid inlet at one end thereof which is connected to or connectible to the outlet passageway of said dual flow catheter and a liquid outlet at the other end thereof, (c) an enlarged deformable portion of the second passageway located downstream of said one end of the second passageway, (d) first flow-controlling means downstream of the enlarged deformable portion to prevent or impede the flow of liquid through the second passageway, the arrangement being such that when the flow-controlling means are operated to prevent or impede the flow of liquid through the second passageway and the enlarged deformable portion is manipulated to reduce its volume, the flow of liquid in the second passageway upstream of the enlarged deformable portion and in the outlet passageway of the dual flow catheter is reversed.
Claim 3
Dependent Claim
40 words
An irrigation device as claimed in claim 1 additionally comprising a by-pass passageway connecting the first and second passageways and a second flow-controlling means in said by-pass passageway to prevent or impede the flow of liquid through the by-pass passageway.
Claim 4
Dependent Claim
31 words
An irrigation device as claimed in claim 1 additionally comprising third flow-controlling means located between said one end of the second passageway and the enlarged deformable portion of the second passageway.
Claim 5
Dependent Claim
29 words
An irrigation device as claimed in claim 1 wherein the first and second passageways are formed integrally with the inlet and outlet passageways respectively of a dual flow catheter.
Claim 6
Dependent Claim
17 words
An irrigation device as claimed in claim 1 in which the enlarged deformable portion is substantially spherical.
Claim 7
Dependent Claim
27 words
An irrigation device as claimed in claim 1 in which the enlarged deformable portion is substantially cylindrical the cylinder having a larger diameter than the second passageway.
Claim 8
Dependent Claim
21 words
An irrigation device as claimed in claim 6 in which the first passageway passes through the substantially cylindrical enlarged deformable portion.
Claim 9
Dependent Claim
17 words
An irrigation device as claimed in claim 1 wherein the first flow-controlling means comprise a manually-operable clip.
Claim 10
Dependent Claim
17 words
An irrigation device as claimed in claim 2 wherein the second flow-controlling means comprise a manually-operable clip.
Claim 11
Dependent Claim
18 words
An irrigation device as claimed in claim 3 wherein the third flow-controlling means comprise a manually operable clip.
References Cited (Backward Citations)
FR382099A
Cited
FR399288A
Cited
DE358436C
Cited
CH108382A
Cited
US1847954A
Cited
US1937362A
Cited
US2022742A
Cited
US1973845A
Cited
DE672779C
Cited
FR818952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |