Patent US3885565A successfully refreshed from Google Patents.
US3885565A
Expired / Lapsed
US
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Suction drainage control connector
Assignee: Sherwood Medical Co
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Filing: 1973-11-07
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Granted: 1975-05-27
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Expires: 1993-11-07
Abstract
Abstract A suction drainage control connector for use in a medicalsurgical drainage system to connect a drainage catheter or tube to a source of suction. The connector has an inlet passage for connection to the catheter, an outlet passage for connection to the source of suction, and a suction control passage adapted to be selectively covered and uncovered by the finger of the user to regulate the suction applied to the catheter. A relief port is provided in the suction control passage to provide for continuous flow from the control passage to the outlet passage to prevent reflux of the aspirated fluid into the control passage and contamination of the sample and/or finger of the user.
Inventors
- 👤 Fred E Satchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:10
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/741; A61M1/7411
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
164 words
A suction drainage control connector, comprising an elongate hollow body having an outlet passage terminating in an outlet port adapted to communicate with a source of suction, an inlet passagge in fluid communication with said outlet passage and having an inlet port adapted to receive a suction catheter, and a suction control passage in fluid communication with said inlet and outlet passages and terminating in a control port adapted to be occluded by the user to regulate the suction applied to said catheter, said control passage extends angularly relative to said inlet passage, and said body having a relief port extending through the side wall of said control passage to the atmosphere between said control port and said outlet port for providing a continuous flow of air in said control passage toward said outlet passage from the atmosphere when said control port is occluded, and wherein the cross-sectional area of said control port is substantially greater than the cross-sectional area of said relief port.
Claim 2
Dependent Claim
164 words
A suction drainage control connector, comprising an elongate hollow body having an outlet passage terminating in an outlet port adapted to communicate with a source of suction, an inlet passagge in fluid communication with said outlet passage and having an inlet port adapted to receive a suction catheter, and a suction control passage in fluid communication with said inlet and outlet passages and terminating in a control port adapted to be occluded by the user to regulate the suction applied to said catheter, said control passage extends angularly relative to said inlet passage, and said body having a relief port extending through the side wall of said control passage to the atmosphere between said control port and said outlet port for providing a continuous flow of air in said control passage toward said outlet passage from the atmosphere when said control port is occluded, and wherein the cross-sectional area of said control port is substantially greater than the cross-sectional area of said relief port.
Claim 3
Dependent Claim
24 words
The suction control connector as set forth in claim 1 wherein the cross-sectional area of said relief port is approximately 0.031 inch in diameter.
Claim 4
Dependent Claim
35 words
The suction control connector as set forth in claim 1 wherein said relief port is an aperture extending through the wall of said hollow body into said control passage and spaced from said control port.
Claim 5
Dependent Claim
32 words
The suction control connector as set forth in claim 1 wherein a portion of said body extends proximally from said control port toward said outlet port between said control and inlet passages.
Claim 6
Dependent Claim
138 words
A suction drainage control connector, comprising an elongate hollow body having an outlet passage terminating in a port adapted to communicate with a source of suction, an inlet passage in fluid communication with said outlet passage and having a port adapted to receive a suction catheter, and a suction control passage in fluid communication with said inlet and outlet passages and terminating in a control port adapted to be occluded by the user to regulate the suction applied to said catheter, said body having a relief port intermediate said control port and said outlet port for providing a continuous flow of air through said outlet passage from the atmosphere when said control port is occluded, said relief port being an elongate slot extending from said control port toward said outlet passage through the wall of said hollow body.
Claim 7
Dependent Claim
138 words
A suction drainage control connector, comprising an elongate hollow body having an outlet passage terminating in a port adapted to communicate with a source of suction, an inlet passage in fluid communication with said outlet passage and having a port adapted to receive a suction catheter, and a suction control passage in fluid communication with said inlet and outlet passages and terminating in a control port adapted to be occluded by the user to regulate the suction applied to said catheter, said body having a relief port intermediate said control port and said outlet port for providing a continuous flow of air through said outlet passage from the atmosphere when said control port is occluded, said relief port being an elongate slot extending from said control port toward said outlet passage through the wall of said hollow body.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |