Patent US6514522B2 successfully refreshed from Google Patents.
US6514522B2
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US
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Polymer constructs
Assignee: Chondros Inc
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Filing: 2001-08-14
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Granted: 2003-02-04
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Expires: 2021-08-14
Abstract
Abstract Polysaccaride polymers are employed in various medical applications. For example, chitosan—arabinogalactan and polysaccharide amine polymers are disclosed. The polymers can be used to prevent wound adhesion, to provide scaffolds for tissue transplantation and carriers for cell culture.
Inventors
- 👤 Abraham J. Domb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:34
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; A; A61; A61K; A61K47/00; A61K47/30; A61K47/36; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1629; A61K9/1652; A61K9/48; A61K9/50; A61K9/5005; A61K9/5021; A61K9/5036; C08B; C08B15/00; C08B15/005; C08B33/00; C08B37/00; C08H; C08H1/00; C12; C12N; C12N5/00; C12N5/06; C12N5/0602; C12N5/0652; C12N5/0654; C08J2305/00; C08J2305/08; C12N2500/00; C12N2500/02; C12N2531/00; C12N2533/00; C12N2533/70; C12N2533/72
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
7 words
A polymer of chitosan cross-linked with arabinogalactan.
Claim 2
Dependent Claim
7 words
A polymer of chitosan cross-linked with arabinogalactan.
Claim 3
Dependent Claim
14 words
Microspheres composed of a polymer of chitosan cross-linked with arabinogalactan of claim 1 .
Claim 4
Dependent Claim
18 words
Microbeadlets prepared from a polymer of chitosan cross-linked with arabinogalactan or a polymer of dextran cross-linked with arabinogalactan.
Claim 5
Dependent Claim
18 words
Microbeadlets prepared from a polymer of chitosan cross-linked with arabinogalactan or a polymer of dextran cross-linked with arabinogalactan.
Claim 6
Dependent Claim
21 words
A wound healing or tissue adhesion preventing device comprising chitosan cross-linked with arabinogalactan or the polymer of dextran cross-linked with arabinogalactan.
Claim 7
Dependent Claim
21 words
A wound healing or tissue adhesion preventing device comprising chitosan cross-linked with arabinogalactan or the polymer of dextran cross-linked with arabinogalactan.
Claim 8
Dependent Claim
68 words
The reaction product of an oxidized polysaccharide cross-linked with a polyamine wherein the oxidized polysaccharide is a member of the group consisting of arabinogalactan, pullulan, cellulose and amylose at an oxidation degree of from 5% to about 50% of the saccharide groups and the polyamine is selected from the group consisting of amino containing polysaccharides, synthetic polyamines, collagen, fibrinogen, fibrin, albumin, hydrolyzed proteins,chitosan, poly(ethylene imine), and poly(vinyl amine).
Claim 9
Dependent Claim
68 words
The reaction product of an oxidized polysaccharide cross-linked with a polyamine wherein the oxidized polysaccharide is a member of the group consisting of arabinogalactan, pullulan, cellulose and amylose at an oxidation degree of from 5% to about 50% of the saccharide groups and the polyamine is selected from the group consisting of amino containing polysaccharides, synthetic polyamines, collagen, fibrinogen, fibrin, albumin, hydrolyzed proteins,chitosan, poly(ethylene imine), and poly(vinyl amine).
Claim 10
Dependent Claim
27 words
A polymer product comprising a polysaccharide cross-linked with an amine or a protein wherein the amine or protein is collagen, fibrinogen, fibrin, albumin, hydrolyzed protein or chitosan.
Claim 11
Dependent Claim
27 words
A polymer product comprising a polysaccharide cross-linked with an amine or a protein wherein the amine or protein is collagen, fibrinogen, fibrin, albumin, hydrolyzed protein or chitosan.
Claim 12
Dependent Claim
15 words
The polymer product of claim 6 wherein the polysaccharide is arabinogalactan, pullan, cellulose or amylose.
Claim 13
Dependent Claim
17 words
The polymer product of claim 6 wherein the amine is poly (ethylene imine) or poly (vinyl amine).
Claim 14
Dependent Claim
10 words
The polymer of claim 6 wherein the polysaccharide is oxidized.
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