Patent US4032993A successfully refreshed from Google Patents.
US4032993A
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Bioresorbable surgical articles
Assignee: Rhone Poulenc Industries SA
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Filing: 1975-06-25
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Granted: 1977-07-05
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Expires: 1995-06-25
Abstract
Abstract Implantable surgical articles are provided which are at least partially bioresorbable and which consist at least partially of a copolyester of succinic acid and oxalic acid possessing receiving units of the general formulae: ##STR1## in which each R radical in the chain, which may be identical or different, represents a linear or branched alkylene radical possessing 2 to 6 carbon atoms, at least 2 of which carbon atoms form part of the polymer chain, a cyclo-alkylene radical possessing 5 to 8 carbon atoms, or a radical of the general formula: ##STR2## in which each of R 1 and R 2 , which may be identical or different, represents a methylene or ethylene radical. They are particularly suitable as sutures.
Inventors
- 👤 Jean Coquard
- 👤 Pierre Sedivy
- 👤 Michel Ruaud
- 👤 Jean Verrier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:38
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/58; A61L17/00; A61L17/06; A61L17/10; A61L17/105; A61L17/12; A61L27/14; A61L27/18
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
113 words
A sterile implantable surgical article which is at least partially bioresorbable, and which consists at least partially of a copolyester of succinic acid and oxalic acid possessing recurring units of the general formulae: ##STR5## in which each R radical in the chain, which may be identical or different, represents a linear or branched alkylene radical possessing 2 to 6 carbon atoms, at least 2 of which carbon atoms form part of the polymer chain, a cyclo-alkylene radical possessing 5 to 8 carbon atoms, or a radical of the general formula: ##STR6## in which each of R 1 and R 2 , which may be identical or different, represents a methylene or ethylene radical.
Claim 2
Dependent Claim
113 words
A sterile implantable surgical article which is at least partially bioresorbable, and which consists at least partially of a copolyester of succinic acid and oxalic acid possessing recurring units of the general formulae: ##STR5## in which each R radical in the chain, which may be identical or different, represents a linear or branched alkylene radical possessing 2 to 6 carbon atoms, at least 2 of which carbon atoms form part of the polymer chain, a cyclo-alkylene radical possessing 5 to 8 carbon atoms, or a radical of the general formula: ##STR6## in which each of R 1 and R 2 , which may be identical or different, represents a methylene or ethylene radical.
Claim 3
Dependent Claim
32 words
A surgical article according to claim 1, in which the copolyester has a reduced viscosity at least 50 cm 3 /g as a 2% by weight solution in chlorophenol at 25° C.
Claim 4
Dependent Claim
32 words
A surgical article according to claim 1, in which the copolyester consists of 1 to 20 mol % of units of formula (II) and 99 to 80% of units of formula (I).
Claim 5
Dependent Claim
15 words
A surgical article according to claim 1, which is in the form of a suture.
Claim 6
Dependent Claim
15 words
A surgical article according to claim 4, which is in the form of a filament.
Claim 7
Dependent Claim
29 words
A surgical article according to claim 1, which is in the form of a prosthesis for replacing supporting or assisting in the repair of a human of animal organ.
Claim 8
Dependent Claim
16 words
A surgical article according to claim 6, which is in the form of a solid-walled tube.
Claim 9
Dependent Claim
17 words
A surgical article according to claim 6, which is in the form of a woven, textile web.
Claim 10
Dependent Claim
22 words
A surgical article according to claim 1, in which the copolyester is present as a coating over a core of non-bioresorbable material.
Claim 11
Dependent Claim
25 words
A surgical article according to claim 9, in which the non-bioresorbable material is selected from the group consisting of polyethylene glycol terephthalate, polyamide and polypropylene.
Claim 12
Dependent Claim
19 words
A surgical article according to claim 1, in which the copolyester is combined with another material which is bioresorbable.
Claim 13
Dependent Claim
24 words
A surgical article according to claim 11, in which the other material is selected from the group consisting of a polylactide and a polyglycolide.
Claim 14
Dependent Claim
35 words
In a method of repairing or replacing a part of the body of a human or non-human animal the improvement wherein a surgical article as defined in claim 1 is incorporated either temporarily or permanently.
Claim 15
Dependent Claim
15 words
A surgical article according to claim 1 which is in the form of a bristle.
Claim 16
Dependent Claim
15 words
A surgical article according to claim 1 which is in the form of a yarn.
Claim 17
Dependent Claim
15 words
A surgical article according to claim 1 which is in the form of a tape.
Claim 18
Dependent Claim
15 words
A surgical article according to claim 1 which is in the form of a sliver.
Claim 19
Dependent Claim
15 words
A surgical article according to claim 6 which is in the form of a bar.
Claim 20
Dependent Claim
15 words
A surgical article according to claim 6 which is in the form of a plate.
Claim 21
Dependent Claim
15 words
A surgical article according to claim 6 which is in the form of a screw.
Claim 22
Dependent Claim
15 words
A surgical article according to claim 6 which is in the form of a ring.
Claim 23
Dependent Claim
14 words
A surgical article according to claim 6 in the form of a knitted tube.
Claim 24
Dependent Claim
15 words
A surgical article according to claim 6, in the form of a knitted textile web.
Claim 25
Dependent Claim
15 words
A surgical article according to claim 6, in the form of a non-woven textile web.
Claim 26
Dependent Claim
14 words
A surgical article according to claim 1 in the form of a twisted yarn.
Claim 27
Dependent Claim
14 words
A surgical article according to claim 1 in the form of a corded yarn.
Claim 28
Dependent Claim
14 words
A surgical article according to claim 1 in the form of a combined yarn.
Claim 29
Dependent Claim
14 words
A surgical article according to claim 1 in the form of a texturized yarn.
Claim 30
Dependent Claim
14 words
A surgical article according to claim 1 in the form of a wrapped yarn.
Claim 31
Dependent Claim
14 words
A surgical article according to claim 1 in the form of a spun yarn.
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) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |