US4917700A
Expired / Lapsed
US
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Prosthetic ligament
Assignee: Zimmer Inc
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Filing: 1988-08-01
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Granted: 1990-04-17
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Expires: 2008-08-01
Abstract
Abstract A prosthetic ligament includes a braided jacket with an unbraided core which is formed with a portion of the fibers of the braided jacket. This portion is isolated from the remaining braided jacket over a predetermined length of the prosthetic ligament.
Inventors
- 👤 Jerry L. Aikins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; D; D04; D04C; D04C1/00; D04C1/06; D10; D10B; D10B2509/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
67 words
A prosthetic ligament comprising a plurality of fibers extending between opposite ends, the plurality of fibers forming a braided jacket and an unbraided core, the braided jacket extending over a majority of the length of the prosthetic ligament to surround all of the unbraided core, and the plurality of fibers defining the unbraided core also defining a portion of the braided jacket near at least one end.
Claim 2
Dependent Claim
67 words
A prosthetic ligament comprising a plurality of fibers extending between opposite ends, the plurality of fibers forming a braided jacket and an unbraided core, the braided jacket extending over a majority of the length of the prosthetic ligament to surround all of the unbraided core, and the plurality of fibers defining the unbraided core also defining a portion of the braided jacket near at least one end.
Claim 3
Dependent Claim
41 words
The prosthetic ligament of claim 1 in which the plurality of fibers defining the unbraided core also define the braided jacket at both ends and the unbraided core defines an intermediate length extending over a substantial length of the prosthetic ligament.
Claim 4
Dependent Claim
52 words
The prosthetic ligament of claim 1 in which a transition zone is defined near the one end and a portion of the plurality of fibers form the unbraided core on one side of the transition zone and form a part of the braided jacket on the other side of the transition zone.
Claim 5
Dependent Claim
41 words
The prosthetic ligament of claim 3 in which the portion of the plurality of fibers gradually separate from the braided jacket to form the unbraided core at the transition zone while the braided jacket is maintained to surround the unbraided core.
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) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |