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Patent US4261341A successfully refreshed from Google Patents.
US4261341A
Expired / Lapsed
US
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Method and apparatus for the treatment of ascites
Assignee: Hakim Co Ltd
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Filing: 1979-06-08
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Granted: 1981-04-14
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Expires: 1999-06-08
Abstract
Abstract In the method of treating ascites disclosed herein, an intraperitoneal inlet tube is connected to an implanted jugular catheter through a valving unit including a pair of one-way valve units which are connected in series through a flexible intermediate chamber to another pair of one-way valve units. The flexible chamber is surgically secured near the surface of the patient's abdomen or chest, preferably over the sternum, so that, by manual pressure, the patient can periodically deform the conduit thereby to effect pumping of the ascites fluid.
Inventors
- 👤 Salomon Hakim
- 👤 Carlos A. Hakim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:49
CPC Classifications
A; A61; A61M; A61M27/00; A61M27/002
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
A method for the treatment of a patient suffering from ascites comprising: implanting an inlet catheter in the peritoneal cavity of the patient; inserting, into the patient's jugular vein, a drainage catheter which extends essentially to the right atrium; connecting said inlet catheter to said drainage catheter through a valve assembly comprising a first pair of one-way valves in side by side relationship connected in series through a flexible conduit to a second pair of one-way valves in side by side relationship surgically securing the valve assembly near the surface of the patient's abdomen so that, by manual pressure, the patient can deform said conduit to effect pumping of ascitic fluid from the peritoneal cavity to the venous system.
Claim 2
Independent Claim
119 words
A method for the treatment of a patient suffering from ascites comprising: implanting an inlet catheter in the peritoneal cavity of the patient; inserting, into the patient's jugular vein, a drainage catheter which extends essentially to the right atrium; connecting said inlet catheter to said drainage catheter through a valve assembly comprising a first pair of one-way valves in side by side relationship connected in series through a flexible conduit to a second pair of one-way valves in side by side relationship surgically securing the valve assembly near the surface of the patient's abdomen so that, by manual pressure, the patient can deform said conduit to effect pumping of ascitic fluid from the peritoneal cavity to the venous system.
Claim 3
Independent Claim
113 words
A method for the treatment of a patient suffering from ascites comprising: implanting an inlet catheter into the peritoneal cavity of the patient; inserting, into the patient's central venous system, a drainage catheter; connecting said inlet catheter to said drainage catheter through a valve assembly comprising a first pair of one-way valves in side by side relationship connected in series through a flexible conduit to a second pair of one-way valves in side by side relationship surgically implanting the valve assembly in a subcutaneous pocket over the patient's sternum so that, by manual pressure, the conduit can be deformed to effect pumping of ascitic fluid from the peritoneal cavity to the venous system.
Claim 4
Independent Claim
113 words
A method for the treatment of a patient suffering from ascites comprising: implanting an inlet catheter into the peritoneal cavity of the patient; inserting, into the patient's central venous system, a drainage catheter; connecting said inlet catheter to said drainage catheter through a valve assembly comprising a first pair of one-way valves in side by side relationship connected in series through a flexible conduit to a second pair of one-way valves in side by side relationship surgically implanting the valve assembly in a subcutaneous pocket over the patient's sternum so that, by manual pressure, the conduit can be deformed to effect pumping of ascitic fluid from the peritoneal cavity to the venous system.
Claim 5
Dependent Claim
21 words
The method as set forth in claim 1 further comprising inserting an antechamber between said inlet catheter and said valve assembly.
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) | 1984-04-13 | 1984-10-13 | 1985-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-13 | 1988-10-13 | 1989-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-13 | 1992-10-13 | 1993-04-14 | $7700.00 | Window Closed / Lapsed |