US5190759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for prevention of adhesions between body tissues
Assignee: Kabi Pharmacia AB
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Filing: 1990-02-21
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Granted: 1993-03-02
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Expires: 2010-02-21
Abstract
Abstract A composition for the prevention of adhesions between body tissues after a surgical operation, containing dextran and hyaluronic acid. The composition further claims the use of said components for the preparation of such a composition as well as its use as an agent for the prevention of adhesions.
Inventors
- 👤 Gert Lindblad
- 👤 Peter Buckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:22
CPC Classifications
C; C08; C08L; C08L5/00; C08L5/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
75 words
Method for preventing adhesion between tissue surfaces, which comprises implanting into the space in which adhesions are to be prevented a composition comprising an admixture of dextran in an amount 1 to 35% and hyaluronic acid in an amount of 0.5 to 6%, the dextran having a weight average molecular weight within the range of 30,000 to 75,000 and the hyaluronic acid having a weight average molecular weight within the range of 500,000 to 6,000,000.
Claim 2
Dependent Claim
75 words
Method for preventing adhesion between tissue surfaces, which comprises implanting into the space in which adhesions are to be prevented a composition comprising an admixture of dextran in an amount 1 to 35% and hyaluronic acid in an amount of 0.5 to 6%, the dextran having a weight average molecular weight within the range of 30,000 to 75,000 and the hyaluronic acid having a weight average molecular weight within the range of 500,000 to 6,000,000.
Claim 3
Dependent Claim
12 words
A method according to claim 1 wherein said composition contains a hapten-dextran.
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) | 1996-03-01 | 1996-08-31 | 1997-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-01 | 2000-08-31 | 2001-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-01 | 2004-08-31 | 2005-03-02 | $7700.00 | Window Closed / Lapsed |