Patent US2583706A successfully refreshed from Google Patents.
US4665902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible penile prosthesis
Assignee: CR Bard Inc
•
Filing: 1985-12-04
•
Granted: 1987-05-19
•
Expires: 2005-12-04
Abstract
Abstract A penile erection prosthesis fully implanted in a patient with a tubular section intermediate its ends containing a flexible zone. The flexible zone is formed by a plurality of circumferential grooves having sides of unequal length. The flexible zone contracts lengthwise with the grooves forming reentrant overlapping folds. The flexible zone is axially bendable and has the ability to retain a position without returning to its previous shape.
Inventors
- 👤 Kathy O. Goff
- 👤 Kenneth Johnsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:13
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
121 words
A penile erection prothesis to be fully implantable in a patient, the prosthesis having a relatively rigid tubular middle section intermediate the ends thereof, said middle section having a flexible zone defined by a plurality of circumferential grooves, each of said grooves defined by sides of unequal length, said flexible zone having a plurality of positions, a first position in which said middle section is contracted lengthwise with said middle sides of said grooves reentrant and overlapping and other positions in which said flexible zone is bent about a short axis and a tensioning means for urging the sides of said grooves in a compressed overlapped rentrant position, said tensioning means is a coaxial elastic cord extending across the flexible zone.
Claim 2
Dependent Claim
121 words
A penile erection prothesis to be fully implantable in a patient, the prosthesis having a relatively rigid tubular middle section intermediate the ends thereof, said middle section having a flexible zone defined by a plurality of circumferential grooves, each of said grooves defined by sides of unequal length, said flexible zone having a plurality of positions, a first position in which said middle section is contracted lengthwise with said middle sides of said grooves reentrant and overlapping and other positions in which said flexible zone is bent about a short axis and a tensioning means for urging the sides of said grooves in a compressed overlapped rentrant position, said tensioning means is a coaxial elastic cord extending across the flexible zone.
Claim 3
Dependent Claim
27 words
A penile erection prosthesis of claim 1 wherein said flexible zone being axially bendable with the ability to hold these positions without returning to its previous shape.
Claim 4
Dependent Claim
41 words
A penile erection prosthesis according to claim 1 wherein said grooves are identical and extend completely around the periphery of said middle section, each of said grooves having two sides with one of said sides different in length than the other.
Claim 5
Dependent Claim
32 words
A penile erection prosthesis according to claim 1 wherein said middle section further comprises a thin-walled, small diameter cylinder having said flexible zone extending over only a minor portion of its length.
Claim 6
Dependent Claim
20 words
A penile erection prosthesis according to claim 1 wherein said middle section further comprises a plurality of said flexible zones.
Claim 7
Dependent Claim
24 words
A penile erection prosthesis according to claim 1 wherein said reentrant overlapping sides form folds having a component of direction axially of the tube.
Claim 8
Dependent Claim
31 words
A penile erection prosthesis according to claim 1 further comprising a relatively rigid cylindrically-shaped tip section having a round end, and a relatively rigid cylindrically-shaped root section having a rounded end.
Claim 9
Dependent Claim
19 words
A penile erection prosthesis according to claim 1 wherein the tensioning means is a sheath surrounding the middle section.
References Cited (Backward Citations)
US4177805A
Cited
US4187839A
Cited
US4275724A
Cited
US4363323A
Cited
US4522198A
Cited
US4593690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |