US3589355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for achieving reversible male sterilization
Assignee: Individual
•
Filing: 1969-09-12
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Granted: 1971-06-29
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Expires: 1989-09-12
Abstract
Abstract A method for obtaining reversible male sterilization by occlusion of the vas deferens to block passage of the sperm produced in the testes. A portion of the vas deferens is exposed by a high midscrotal incision for the insertion of an intravasal plug. The plug has a filiform thread attached to one of its ends and is introduced into the vas by a straight needle from the testicular side of the epididymal side of the vas with the filiform threads allowed to extend through the wall of the vas at the epididymal side. The filiform thread is then tied around the vas at the epididymal side in order to hold the intravasal plug in place thereby creating a mechanical obstruction to the passage of the sperm.
Inventors
- 👤 Hee Young Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:13
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/20; A61F6/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
A method for achieving reversible male sterilization by vas occlusion comprising the steps of exposing a portion of the vas deferens, inserting a physiologically inert elongated plug having transverse dimensions of luminal size into the vasal lumen thereby blocking passage of sperm, said plug having at least one physiologically inert thread attached to its end thereof, fixing said plug in said vasal lumen by tying said thread around the epididymal side thereof and, restoring said vas deferens to its original unexposed position.
Claim 2
Independent Claim
82 words
A method for achieving reversible male sterilization by vas occlusion comprising the steps of exposing a portion of the vas deferens, inserting a physiologically inert elongated plug having transverse dimensions of luminal size into the vasal lumen thereby blocking passage of sperm, said plug having at least one physiologically inert thread attached to its end thereof, fixing said plug in said vasal lumen by tying said thread around the epididymal side thereof and, restoring said vas deferens to its original unexposed position.
Claim 3
Dependent Claim
34 words
A method as in claim 1 wherein said step of exposing a portion of said vas deferens is accomplished by a high midscrotal incision thereby exposing the nonciliated scrotal portion of said vas deferens.
Claim 4
Dependent Claim
29 words
A method as in claim 1 wherein said plug consists of a cylindrical plug of luminal diameter having at least one filiform thread attached to one of its ends.
Claim 5
Dependent Claim
18 words
A method as in claim 3 wherein said plug is made of nonreactive and nonabsorbable surgical nylon thread.
Claim 6
Dependent Claim
28 words
A method as in claim 1 wherein said plug is inserted into said vasal lumen by means of a straight needle to which said mechanical device is attached.
Claim 7
Dependent Claim
24 words
A method as in claim 1 wherein said plug is inserted into the exposed vas deferens from the testes side to the epididymal side.
Claim 8
Dependent Claim
23 words
A method as in claim 1 wherein said filiform thread is tied around the circumference of the vas deferens at the epididymal side.
Claim 9
Dependent Claim
172 words
In a method for reversing male sterilization achieved by vas occlusion which comprises the steps of exposing A portion of the vas deferens by a midscrotal incision, inserting into the vasal lumen a physiologically inert plug of luminal diameter having at least one physiologically inert thread attached to one of its ends and extending through the wall of said vas deferens, fixing said plug within said vasal lumen by tying said thread around said vas deferens and restoring said vas deferens to its original unexposed position and closing said scrotal incision, in which said sterilization is reversed by exposing said portion of said vas deferens containing said intravasal plug, cutting said thread tied around said vas deferens thereby releasing said plug, removing said plug from said vasal lumen by pulling said thread, introducing one end of a splint thread into said previously occluded vasal lumen, attaching said other end of said splint thread to the scrotal skin and restoring said vas deferens to its original unexposed position and closing said scrotal incision.
Claim 10
Dependent Claim
172 words
In a method for reversing male sterilization achieved by vas occlusion which comprises the steps of exposing A portion of the vas deferens by a midscrotal incision, inserting into the vasal lumen a physiologically inert plug of luminal diameter having at least one physiologically inert thread attached to one of its ends and extending through the wall of said vas deferens, fixing said plug within said vasal lumen by tying said thread around said vas deferens and restoring said vas deferens to its original unexposed position and closing said scrotal incision, in which said sterilization is reversed by exposing said portion of said vas deferens containing said intravasal plug, cutting said thread tied around said vas deferens thereby releasing said plug, removing said plug from said vasal lumen by pulling said thread, introducing one end of a splint thread into said previously occluded vasal lumen, attaching said other end of said splint thread to the scrotal skin and restoring said vas deferens to its original unexposed position and closing said scrotal incision.
References Cited (Backward Citations)
US3042021A
Cited
US3422813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |