US5011493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material for connecting members for inner soft tissues and organs
Assignee: VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I ISPYTATELNY INSTITUT MEDITSINSKOI TEKHNIKI
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Filing: 1987-10-02
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Granted: 1991-04-30
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Expires: 2007-10-02
Abstract
Abstract A material for connecting members for soft tissues and inner organs which consists of a copolymer of N-vinylpyrrolidone and alkyl esters of acrylic and/or methacrylic acid containing in the alkyl group 2 to 8 carbon atoms at the following proportions of the components, molar percent: -N-vinylpyrrolidone 40-90 -alkyl esters of acrylic and/or -methacrylic acid 10-60. -
Inventors
- 👤 Sergei I. Belykh
- 👤 Vladimir S. Gigauri
- 👤 Anatoly B. Davydov
- 👤 Viktor V. Keshelava
- 👤 Vyacheslav E. Mlynchik
- 👤 Rustam I. Utyamyshev
- 👤 Elizaveta V. Firsova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:04
CPC Classifications
A; A61; A61L; A61L31/00; A61L31/14; A61L31/148; A61L24/00; A61L24/001; A61L24/0042; A61L24/04; A61L24/06; A61L31/04; A61L31/048; A61B; A61B17/00; A61B17/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
A method wherein members of soft tissue and inner organs located within a subject have been partially or completely separated and are thereafter reconnected, which comprises reconnecting the separated portions thereof with a biodegradable synthetic polymer, consisting essentially of a copolymer of N-vinylpyrrolidone and alkyl esters of acrylic and/or methacrylic acids containing 2 to 8 carbon atoms in the alkyl group, and having an intrinsic viscosity of from 0.3 to 0.8 dl/g in the following proportions of the components, in molar per cent: ______________________________________
N-vinylpyrrolidone 40-90
alkyl esters of acrylic or
methacrylic acids 10-60.
______________________________________
Claim 2
Independent Claim
95 words
A method wherein members of soft tissue and inner organs located within a subject have been partially or completely separated and are thereafter reconnected, which comprises reconnecting the separated portions thereof with a biodegradable synthetic polymer, consisting essentially of a copolymer of N-vinylpyrrolidone and alkyl esters of acrylic and/or methacrylic acids containing 2 to 8 carbon atoms in the alkyl group, and having an intrinsic viscosity of from 0.3 to 0.8 dl/g in the following proportions of the components, in molar per cent: ______________________________________
N-vinylpyrrolidone 40-90
alkyl esters of acrylic or
methacrylic acids 10-60.
______________________________________
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein said biodegradable synthetic polymer is in the form of a film.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said biodegradable synthetic polymer is in the form of a strip.
Claim 5
Dependent Claim
30 words
The method of claim 1 wherein said alkyl esters of acrylic and/or methacrylic acids are selected from the group consisting of ethylacrylate, butylmethacrylate, and a mixture of ethylacrylate with hexylmethacrylate.
Claim 6
Dependent Claim
36 words
The method of claim 1 wherein said biodegradable synthetic polymer consists essentially of a copolymer of N-vinylpyrrolidone and butylmethacrylate in the following proportions of the components in molar per cent: ______________________________________
N-vinylpyrrolidone
60-75
butylmethacrylate 25-40.
______________________________________
References Cited (Backward Citations)
US3144391A
Cited
US3527224A
Cited
US3577516A
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US3847155A
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US3914403A
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US4310509A
Cited
US4323557A
Cited
US4524061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-29 | 1994-10-29 | 1995-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-29 | 1998-10-29 | 1999-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-29 | 2002-10-29 | 2003-04-30 | $7700.00 | Window Closed / Lapsed |