US4804383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary prosthesis for tendons and ligaments, and a method of fitting same
Assignee: Individual
•
Filing: 1986-05-01
•
Granted: 1989-02-14
•
Expires: 2006-05-01
Abstract
Abstract New prostheses for ligaments and tendons in humans or animals intended to replace deficient original organs and induce the growth of new-formed tissue, which tissue, in turn, replaces such a prosthesis and reconstitutes an analogue of the original organ, may comprise at least one strand of synthetic polyaramide fibres NOMEX (i.e. polymetaphenylene isophthalamide the fibres not having any having any protective element so that they are placed in direct contact with surrounding live tissues, as a result of which the growth of fibrous new-formed tissue is induced to replace the synthetic fibres which are at least partly eliminated.
Inventors
- 👤 Pierre Rey
- 👤 Jacqueline Leandri
- 👤 Philippe Dahhan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:59
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/04; A61L27/00; A61L27/14; A61L27/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
78 words
A prosthesis for humans or animals for replacing a deficient original ligament or tendon, the prosthesis comprising at least one strand of degreased poly(metaphenylene isophthalamide) fibers said at least one strand being externally exposed and devoid of external protection and thus adapted to come into direct contact with live tissues when the prosthesis is implanted, whereby reactions of surrounding tissues induce growth of fibrous new-formed tissue to replace and eliminate at least in part the poly(metaphenylene isophthalamide) fibers.
Claim 2
Dependent Claim
78 words
A prosthesis for humans or animals for replacing a deficient original ligament or tendon, the prosthesis comprising at least one strand of degreased poly(metaphenylene isophthalamide) fibers said at least one strand being externally exposed and devoid of external protection and thus adapted to come into direct contact with live tissues when the prosthesis is implanted, whereby reactions of surrounding tissues induce growth of fibrous new-formed tissue to replace and eliminate at least in part the poly(metaphenylene isophthalamide) fibers.
Claim 3
Dependent Claim
18 words
A prosthesis according to claim 1, wherein said at least one strand consists essentially of poly(metaphenylene isophthalamide) fibers.
Claim 4
Dependent Claim
17 words
A prosthesis according to claim 1, wherein said at least one strand comprises mainly poly(metaphenylene isophthalamide) fibers.
Claim 5
Independent Claim
84 words
A method for replacing of a ligament between two bones of a joint in humans or animals, comprising the steps of preparing at least one exposed strand of poly(metaphenylene isophthalamide)fibers without any protective coating or covering to form a prosthesis, arranging the strand along the natural path of a original ligament and attaching the strand to both bones whereby reactions of surrounding tissues induce growth of fibrous new-formed tissue to replace and eliminate at least in part the poly(metaphenylene isophthalamide) fibers of the prosthesis.
Claim 6
Independent Claim
84 words
A method for replacing of a ligament between two bones of a joint in humans or animals, comprising the steps of preparing at least one exposed strand of poly(metaphenylene isophthalamide)fibers without any protective coating or covering to form a prosthesis, arranging the strand along the natural path of a original ligament and attaching the strand to both bones whereby reactions of surrounding tissues induce growth of fibrous new-formed tissue to replace and eliminate at least in part the poly(metaphenylene isophthalamide) fibers of the prosthesis.
Claim 7
Dependent Claim
21 words
A method according to claim 4, further comprising the step of degreasing the poly(metaphenylene isophthalamide) fibers before implantation of the prosthesis.
Claim 8
Dependent Claim
23 words
A method according to claim 5, wherein the degreasing step comprises immersing the poly(metaphenylene isophthalamide) fibers in boiling trichloroethylene and then drying them.
Claim 9
Dependent Claim
18 words
A method according to claim 4, wherein said at least one strand consists essentially of poly(metaphenylene isophthalamide) fibers.
Claim 10
Dependent Claim
17 words
A method according to claim 4, wherein said at least one strand comprises mainly poly(metaphenylene isophthalamide) fibers.
Claim 11
Independent Claim
104 words
A method for replacing of a tendon between a muscle and a bone in humans or animals, the method comprising the steps of preparing at least one expressed strand of poly(metaphenylene isophthalamide) fibers without any protective coating or covering to form a prosthesis, arranging the prosthesis along the natural path of the original tendon between the bone and a stump of the original tendon attached to the muscle and attaching the prosthesis to the bone and the stump whereby reactions of surrounding tissues induce growth of fibrous new-formed tissue to replace and eliminate at least in part the poly(metaphenylene isophthalamide) fibers of the prosthesis.
Claim 12
Independent Claim
104 words
A method for replacing of a tendon between a muscle and a bone in humans or animals, the method comprising the steps of preparing at least one expressed strand of poly(metaphenylene isophthalamide) fibers without any protective coating or covering to form a prosthesis, arranging the prosthesis along the natural path of the original tendon between the bone and a stump of the original tendon attached to the muscle and attaching the prosthesis to the bone and the stump whereby reactions of surrounding tissues induce growth of fibrous new-formed tissue to replace and eliminate at least in part the poly(metaphenylene isophthalamide) fibers of the prosthesis.
Claim 13
Dependent Claim
20 words
A method according to claim 9, further comprising the step of degreasing poly(metaphenylene isophthalamide) fibers before implantation of the prosthesis.
Claim 14
Dependent Claim
23 words
A method according to claim 10, wherein the degreasing step comprising immersing the poly(metaphenylene isophthalamide) fibers in boiling trichloroethylene and then drying them.
Claim 15
Dependent Claim
18 words
A method according to claim 9, wherein said at least one strand consists essentially of poly(metaphenylene isophthalamide) fibers.
Claim 16
Dependent Claim
16 words
A method according to claim 9, wherein at least one strand comprises mainly poly(metaphenylene isophthalamide) fibers.
References Cited (Backward Citations)
US3476504A
Cited
US3300450A
Cited
US4167538A
Cited
FR2387028A1
Cited
US4164794A
Cited
US4362681A
Cited
GB1602834A
Cited
US4455690A
Cited
EP0051954A2
Cited
US4329185A
Cited
DE3216005A1
Cited
US4470941A
Cited
US4610688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-14 | 1992-08-15 | 1993-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-14 | 1996-08-15 | 1997-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-14 | 2000-08-15 | 2001-02-14 | $7700.00 | Window Closed / Lapsed |