US3820528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical method for sterilization
Assignee: Individual
•
Filing: 1972-02-10
•
Granted: 1974-06-28
•
Expires: 1992-02-10
Abstract
Abstract This invention relates to the design, manufacture, and installation procedures for accomplishing a reversible male sterilization operation through the implanting of tiny, especially designed plastic valve assembly in the tubes of the vas deferens through the use of a special installing device. The plastic valve assembly, the method of manufacture and installation of same, and the special installing apparatus make up this invention.
Inventors
- 👤 W Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:21
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/20; A61F6/22; A61F6/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
157 words
A method for inserting a flexible male sterilization valve in the vas deferens comprising the steps of: slitting the vas; inserting an inverted V-shaped tool under the vas; elevating the vas on the tool so as to stretch the vas and open the slit; exposing the uncut side portions of the vas extending downward along each side of the tool; clamping the uncut sides of the vas against their respective tool sides; folding the flexible valve passageways downward so as to accord with the downward sloping sides of the tool; spreading the slit sides of the vas apart; inserting the valve in the opened and spread vas so that the valve ends fit into their respective vas sides; releasing the slit vas sides so as to close same; securing the closed vas sides about the inserted valve; releasing the clamping tool holding the vas sides against the tool sides; and restoring the vas to the level position.
Claim 2
Independent Claim
157 words
A method for inserting a flexible male sterilization valve in the vas deferens comprising the steps of: slitting the vas; inserting an inverted V-shaped tool under the vas; elevating the vas on the tool so as to stretch the vas and open the slit; exposing the uncut side portions of the vas extending downward along each side of the tool; clamping the uncut sides of the vas against their respective tool sides; folding the flexible valve passageways downward so as to accord with the downward sloping sides of the tool; spreading the slit sides of the vas apart; inserting the valve in the opened and spread vas so that the valve ends fit into their respective vas sides; releasing the slit vas sides so as to close same; securing the closed vas sides about the inserted valve; releasing the clamping tool holding the vas sides against the tool sides; and restoring the vas to the level position.
Claim 3
Dependent Claim
31 words
The method as in claim 1 wherein the step of folding the flexible valve passageways downward includes holding the valve ends in the downward position by means of a holding tool.
Claim 4
Dependent Claim
31 words
The method as in claim 1 wherein the step of inserting the vas valve includes turning the valve to the off position just prior to said step of inserting the valve.
Claim 5
Dependent Claim
31 words
The method as recited in claim 1 wherein said step of securing the closed vas sides further comprises the step of inserting a flexible sleeve over the vas and the valve.
Claim 6
Dependent Claim
19 words
The method as recited in claim 1 wherein said step of securing comprises suturing up the closed vas sides.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |