Patent US3789828A successfully refreshed from Google Patents.
US3789828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urethral prosthesis
Assignee: Mentor Worldwide LLC
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Filing: 1972-09-01
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Granted: 1974-02-05
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Expires: 1992-09-01
Abstract
Abstract A prosthesis to resist the flow of urine through the urethra, which comprises a fluid-impervious, flexible and deformable capsule having a gel-filled, or gel and liquid-filled cavity therein. A cover encapsulates the capsule, and two flexible sling ties extend beyond the cover. The material of the cover and of the ties is such as to enhance fiber ingrowth into openings formed by the material, whereby mechanically to stabilize the prosthesis when it is implanted in the human body.
Inventors
- 👤 R Schulte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:31
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0004; A61F2/0031; A61F2/0036; A61F2/004; Y; Y10; Y10S; Y10S128/00; Y10S128/25
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
36 words
A prosthesis according to claim 1 in which the sling is a continuous ribbon attached to the outside surface of said portion of greater thickness, the flexible ribbon passing through the cover to form the ties.
Claim 2
Dependent Claim
73 words
A prosthesis according to claim 2 in which the capsule has a portion of greater thickness and a portion of lesser thickness, the portion of lesser thickness being adapted to bear against the urethra and being the part made of material which is inherently resilient, and the portion of greater thickness being sufficiently thick and stiff enough to close a track made by a needle which had penetrated it and then been withdrawn.
Claim 3
Dependent Claim
43 words
A prosthesis according to claim 3 in which the portion of lesser thickness is dome-shaped, and has an opening therein, and in which the region of greater thickness is substantially flat, and extends across and closes said opening, and includes a mesh reinforcement.
Claim 4
Dependent Claim
35 words
A prosthesis according to claim 1 in which the capsule is made entirely of silicone elastomer, the cover is made of polyurethane Open cell foam, and the sling is made of a loop pile material.
Claim 5
Dependent Claim
16 words
A prosthesis according to claim 5 in which the loop pile material is made of Dacron.
Claim 6
Dependent Claim
13 words
A prosthesis according to claim 1 in which the gel is silicone gel.
Claim 7
Dependent Claim
35 words
A prosthesis according to claim 7 in which the capsule is made entirely of silicone elastomer, the cover is made of polyurethane open cell foam, and the sling is made of a loop pile material.
Claim 8
Dependent Claim
16 words
A prosthesis according to claim 8 in which the loop pile material is made of Dacron.
Claim 9
Dependent Claim
73 words
A prosthesis according to claim 8 in which the capsule has a portion of greater thickness and a portion of lesser thickness, the portion of lesser thickness being adapted to bear against the urethra and being the part made of material which is inherently resilient, and the portion of greater thickness being sufficiently thick and still enough to close a track made by a needle which had penetrated it and then been withdrawn.
Claim 10
Dependent Claim
43 words
A prosthesis according to claim 10 in which the portion of lesser thickness is dome-shaped, and has an opening therein, and in which the region of greater thickness is relatively flat, and extends across and closes said opening, and includes a mesh reinforcement.
Claim 11
Dependent Claim
36 words
A prosthesis according to claim 11 in which the sling is a continuous ribbon attached to the outside surface of said portion of greater thickness, the flexible ribbon passing through the cover to form the ties.
Claim 12
Dependent Claim
17 words
A prosthesis according to claim 12 in which the sling is made of a loop pile material.
Claim 13
Dependent Claim
12 words
A prosthesis according to claim 1 in which the ties are ribbon-shaped.
Claim 14
Dependent Claim
17 words
A prosthesis according to claim 14 is which the ties are made of a loop pile material.
Claim 15
Dependent Claim
16 words
A prosthesis according to claim 15 in which the loop pile material is made of dacron.
Claim 16
Dependent Claim
41 words
A prosthesis according to claim 1 in which the capsule is substantially circular in plan view, has a substantially flat base surface from which the ties extend, and a dome-shaped pressure surface symmetrical around an axis normal to the base surface.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |