US5411554A
Expired / Lapsed
US
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Liquid polymer filled envelopes for use as surgical implants
Assignee: Ethicon Inc
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Filing: 1993-07-20
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Granted: 1995-05-02
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Expires: 2013-07-20
Abstract
Abstract A cosmetic or prosthetic surgical implant comprising an envelope filled with a liquid bioabsorbable polymer and a process for implanting a cosmetic or prosthetic surgical implant involving the filling of an envelope with a liquid bioabsorbable polymer suitable liquid bioabsorbable polymer include lactone copolymers composed of at least two monomers selected from the group consisting of glycolide, L-lactide, D,L-lactide, 1,4-dioxanone, ε-caprolactone, 1,5-dioxepan-2-one and trimethylene carbonate and poly(orthoesters) of the formula: ##STR1## where R is a linear or branched alkylene group containing 3 to 10 carbon atoms and R' is a linear or branched alkyl group containing 1 to 10 carbon atoms and n is selected to provide a liquid poly(orthester) at body temperature.
Inventors
- 👤 Angelo G. Scopelianos
- 👤 Rao S. Bezwada
- 👤 Stephen C. Arnold
- 👤 Richard D. Gooding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/14; A61L27/18; A61L27/28; A61L27/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
100 words
A surgical implant comprising a water impermeable envelope filled with one or more liquid bioabsorbable polymers selected from the group consisting of lactone copolymers and poly(orthoesters) wherein the lactone copolymers are composed of at least two monomers selected from the group consisting of glycolide, L-lactide, D,L-lactide, 1,4-dioxanone, ε-caprolactone, 1,5-dioxepan-2-one and trimethylene and the poly(orthoesters) are of the formula: ##STR3## wherein R is a linear or branched alkylene group containing 3 to 10 carbon atoms and R' is a linear or branched alkyl group containing 1 to 10 carbon atoms and n is selected to provide liquid poly(orthoesters) at body temperature.
Claim 2
Dependent Claim
100 words
A surgical implant comprising a water impermeable envelope filled with one or more liquid bioabsorbable polymers selected from the group consisting of lactone copolymers and poly(orthoesters) wherein the lactone copolymers are composed of at least two monomers selected from the group consisting of glycolide, L-lactide, D,L-lactide, 1,4-dioxanone, ε-caprolactone, 1,5-dioxepan-2-one and trimethylene and the poly(orthoesters) are of the formula: ##STR3## wherein R is a linear or branched alkylene group containing 3 to 10 carbon atoms and R' is a linear or branched alkyl group containing 1 to 10 carbon atoms and n is selected to provide liquid poly(orthoesters) at body temperature.
Claim 3
Dependent Claim
106 words
A process for using a surgical implant comprising implanting in a human a sealed envelope filled with a liquid bioabsorbable polymer selected from the group consisting of lactone copolymers and poly(orthoesters), wherein the lactone copolymers are composed of at least two monomers selected from the group consisting of glycolide, L-lactide, D,L-lactide, 1,4-dioxanone, ε-caprolactone, 1,5-dioxepan-2-one and trimethylene carbonate and the poly(orthoesters) are of the formula: ##STR4## wherein R is a linear or branched alkylene group containing 3 to 10 carbon atoms and R' is a linear or branched alkyl group containing 1 to 10 carbon atoms and n is selected to provide liquid poly(orthoesters) at body temperature.
Claim 4
Dependent Claim
106 words
A process for using a surgical implant comprising implanting in a human a sealed envelope filled with a liquid bioabsorbable polymer selected from the group consisting of lactone copolymers and poly(orthoesters), wherein the lactone copolymers are composed of at least two monomers selected from the group consisting of glycolide, L-lactide, D,L-lactide, 1,4-dioxanone, ε-caprolactone, 1,5-dioxepan-2-one and trimethylene carbonate and the poly(orthoesters) are of the formula: ##STR4## wherein R is a linear or branched alkylene group containing 3 to 10 carbon atoms and R' is a linear or branched alkyl group containing 1 to 10 carbon atoms and n is selected to provide liquid poly(orthoesters) at body temperature.
Claim 5
Dependent Claim
24 words
The surgical implant of claim 1 wherein the liquid bioabsorbable polymer is a terpolymer selected from the group consisting of poly(glycolide-co-L-lactide-co-p-dioxanone), poly(glycolide-co-ε-caprolactone-co-p-dioxanone) and poly(L-lactide-co-ε-caprolactone-co-p-dioxanone).
Claim 6
Dependent Claim
24 words
The process of claim 2 wherein the liquid bioabsorbable polymer is a terpolymer selected from the group consisting of poly (glycolide-co-L-lactide-co-p-dioxanone), poly(glycolide-co-ε-caprolactone-co-p-dioxanone) and poly(L-lactide-co-ε-caprolactone-co-p-dioxanone).
Claim 7
Dependent Claim
22 words
The surgical implant of claim 1 wherein the liquid bioabsorbable polymer is selected from the group consisting of poly(lactide-co-ε-caprolactone), poly(lactide-co-p-dioxanone) and poly(ε-caprolactone-co-p-dioxanone).
Claim 8
Dependent Claim
19 words
The process of using the surgical implant of claim 2 further comprising implanting the surgical implant into breast tissue.
Claim 9
Dependent Claim
26 words
The surgical implant of claim 1 wherein the envelope is a flexible, water impermeable material selected from the group consisting of silicon rubbers, polyurethanes and polyolefins.
Claim 10
Dependent Claim
18 words
The surgical implant of claim 1 wherein the envelope has more than one layer of water impermeable material.
Claim 11
Dependent Claim
22 words
The process of claim 2 wherein the liquid bioabsorbable polymer is selected from the group consisting of poly(lactide-co-ε-caprolactone), poly(lactide-co-p-dioxanone), and poly (ε-caprolactone-co-p-dioxanone).
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