Patent US4628912A successfully refreshed from Google Patents.
US4628912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable root and tip extenders for the stiffener cylinder of a penile erection device
Assignee: AMS Research LLC
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Filing: 1984-08-20
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Granted: 1986-12-16
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Expires: 2004-08-20
Abstract
Abstract A penile erection prosthesis has a bellows-like adjustable root or tip extender that can be elongated or shortened by adding or deleting fluid from an internal chamber of the extender. By continuously adjusting the amount of fluid added or deleted, the length of the extender can be continuously adjusted. This adjustment can be made either during surgical implant or post-operatively by penetrating the skin with a non-coring needle and entering the extender to add or delete fluid. The length of the implant can be adjusted by adding or deleting fluid either from the root extender or from the tip end extender.
Inventors
- 👤 Robert E. Fischell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:14
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/26
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
125 words
A penile erection prosthesis adapted to be implanted in the corpus cavernosum of the penis comprising in combination: a penile implant having a distal end and a proximal end; a tip part at the distal end for location in the tip portion of the corpus cavernosum; a root portion at the proximal end for location in the root portion of the corpus cavernosum; an extension means forming part of at least one of the tip and root, which extension means allows continuous adjustment to any arbitrary length within predetermined limits, which length adjustment is independent of the flaccid or erect state of the prosthesis; adjusting the extension means by adjusting the amount of fluid within at least one of the tip part and root part.
Claim 2
Dependent Claim
125 words
A penile erection prosthesis adapted to be implanted in the corpus cavernosum of the penis comprising in combination: a penile implant having a distal end and a proximal end; a tip part at the distal end for location in the tip portion of the corpus cavernosum; a root portion at the proximal end for location in the root portion of the corpus cavernosum; an extension means forming part of at least one of the tip and root, which extension means allows continuous adjustment to any arbitrary length within predetermined limits, which length adjustment is independent of the flaccid or erect state of the prosthesis; adjusting the extension means by adjusting the amount of fluid within at least one of the tip part and root part.
Claim 3
Dependent Claim
25 words
The invention in accordance with claim 1 wherein the extension means includes a hollow chamber the volume of which is adapted to be selectively adjusted.
Claim 4
Dependent Claim
36 words
The invention in accordance with claim 2 wherein the extension means includes a wall having a bellows defining part of the chamber which is adapted to shift in response to adjustment in volume of the chamber.
Claim 5
Dependent Claim
32 words
The invention in accordance with claim 3 wherein the wall is penetrable and non-coring by a needle for introducing and removing fluid from the chamber to adjust the volume of the chamber.
Claim 6
Dependent Claim
25 words
The invention in accordance with claim 4 wherein a needle stop is disposed within the chamber to limit movement of the needle in the chamber.
Claim 7
Dependent Claim
20 words
The invention in accordance with claim 5 wherein both the tip part and the root part include the extension means.
Claim 8
Dependent Claim
17 words
The invention in accordance with claim 6 wherein the tip part is integral with the distal end.
Claim 9
Dependent Claim
47 words
The invention in accordance with claim 6 wherein the root part is separate from the proximal end of the penile impant having interconnecting means for connecting the root part with the proximal end of the penile implant after the implant has been position in the corpus cavernosum.
Claim 10
Dependent Claim
32 words
The invention in accordance with claim 3 wherein the implant includes an inflatable cylinder between the distal end and proximal end and coupling means for coupling the cylinder with a pressurizing source.
Claim 11
Independent Claim
115 words
A method of obtaining length adjustment of a penile erection device comprising the steps of: providing a prosthesis adapted to be implanted in the corpus cavernosum of the penis, the penile implant having a distal end and a proximal end, a tip part at the distal end for location in the tip portion of the corpus cavernosum, a root portion at the proximal end for location in the root portion of the corpus cavernosum, an extension means forming part of at least one of the tip and root, which extension means allows continuous adjustment to any arbitrary length within predetermined limits, which length adjustment is independent of the flaccid or erect state of the prosthesis;
Claim 12
Independent Claim
115 words
A method of obtaining length adjustment of a penile erection device comprising the steps of: providing a prosthesis adapted to be implanted in the corpus cavernosum of the penis, the penile implant having a distal end and a proximal end, a tip part at the distal end for location in the tip portion of the corpus cavernosum, a root portion at the proximal end for location in the root portion of the corpus cavernosum, an extension means forming part of at least one of the tip and root, which extension means allows continuous adjustment to any arbitrary length within predetermined limits, which length adjustment is independent of the flaccid or erect state of the prosthesis;
Claim 13
Dependent Claim
25 words
The method according to claim 10 wherein the adjustment of the extension means is performed after the prosthesis has been inserted in the corpus cavernosum.
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) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |