US5007940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injectable polymeric bodies
Assignee: AMERICAN MEDIAL SYSTEMS Inc 11001 BREN ROAD EAST MINNETONKA MN A CORP OF
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Filing: 1989-06-09
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Granted: 1991-04-16
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Expires: 2009-06-09
Abstract
Abstract An injectable composition comprising a plurality of discrete physiologically-compatible, non-biodegradable, polymeric bodies, said bodies having (i) an average outside diameter of from about 0.005 to 0.20 inch, (ii) reversible deformability of about 20 to 75% of their unstressed outside diameter, and (iii) a lubricious surface; a process for the preparation of said composition and a method for treating a tissue condition in a patient using said composition.
Inventors
- 👤 Eric P. Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:18
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/52; A61F; A61F2/00; A61F2/0059; A61L27/14; A61L27/16; A61L27/26; Y; Y10; Y10S; Y10S623/00; Y10S623/92
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
45 words
An injectable composition consisting of plurality of discrete physiologically-compatible, non-biodegradable, polymeric bodies, said bodies having (i) an average outside diameter of from about 0.005 to 0.20 inch, (ii) reversible deformability of about 20 to 75% of their unstressed outside diameter, and (iii) a lubricious surface.
Claim 2
Dependent Claim
45 words
An injectable composition consisting of plurality of discrete physiologically-compatible, non-biodegradable, polymeric bodies, said bodies having (i) an average outside diameter of from about 0.005 to 0.20 inch, (ii) reversible deformability of about 20 to 75% of their unstressed outside diameter, and (iii) a lubricious surface.
Claim 3
Dependent Claim
16 words
A composition according to claim 1, in which said bodies are made from a water-swellable hydrogel.
Claim 4
Dependent Claim
15 words
A composition according to claim 2, in which said bodies also include a water-soluble polysaccharide.
Claim 5
Dependent Claim
15 words
A composition according to claim 2, in which said hydrogel is a partially hydrolyzed polyacrylonitrile.
Claim 6
Dependent Claim
22 words
A composition according to claim 3, in which said bodies are made from a mixture of a partially hydrolyzed polyacrylonitrile and dextran.
Claim 7
Dependent Claim
25 words
A composition according to claim 1, in which said bodies are deformable macrodisks having an average outside diameter of from about 0.01 to 0.085 inch.
Claim 8
Dependent Claim
25 words
A composition according to claim 1, in which said bodies are spherical bodies having an average outside diameter of from about 0.01 to 0.085 inch.
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) | 1994-04-15 | 1994-10-15 | 1995-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-15 | 1998-10-15 | 1999-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-15 | 2002-10-15 | 2003-04-16 | $7700.00 | Window Closed / Lapsed |