Biocompatible crosslinked composition
First Claim
1. A method for preparing a biocompatible crosslinked composition, comprising admixing, under crosslinking conditions, (a) a first crosslinkable component having m nucleophilic groups, wherein m≧
- 2, with (b) a second crosslinkable component having n electrophilic groups capable of reaction with the m nucleophilic groups to form covalent bonds, wherein n≧
2 and m+n≧
5, wherein each of the first and second crosslinkable components is biocompatible and synthetic, and crosslinking of the components results in the biocompatible crosslinked composition.
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Accused Products
Abstract
Crosslinked polymer compositions comprise a first synthetic polymer containing multiple nucleophilic groups covalently bound to a second synthetic polymer containing multiple electrophilic groups. The first synthetic polymer is preferably a synthetic polypeptide or a polyethylene glycol that has been modified to contain multiple nucleophilic groups, such as primary amino (—NH2)or thiol (—SH) groups. The second synthetic polymer may be a hydrophilic or hydrophobic synthetic polymer which contains, or has been derivatized to contain, two or more electrophilic groups, such as succinimidyl groups. The compositions may further comprise other components, such as naturally occurring polysaccharides or proteins (such as glycosaminoglycans or collagen) and/or biologically active agents. Also disclosed are methods for using the crosslinked polymmer compositions to effect adhesion between a first surface and a second surface; to effect tissue augmentation; to prevent the formation of surgical adhesions; and to coat a surface of a synthetic implant.
231 Citations
64 Claims
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1. A method for preparing a biocompatible crosslinked composition, comprising admixing, under crosslinking conditions, (a) a first crosslinkable component having m nucleophilic groups, wherein m≧
- 2, with (b) a second crosslinkable component having n electrophilic groups capable of reaction with the m nucleophilic groups to form covalent bonds, wherein n≧
2 and m+n≧
5, wherein each of the first and second crosslinkable components is biocompatible and synthetic, and crosslinking of the components results in the biocompatible crosslinked composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
- 2, with (b) a second crosslinkable component having n electrophilic groups capable of reaction with the m nucleophilic groups to form covalent bonds, wherein n≧
-
33. A biocompatible crosslinked composition prepared by the process comprising admixing, under crosslinking conditions, (a) a first crosslinkable component having m nucleophilic groups, wherein m≧
- 2 with (b) a second crosslinkable component having n electrophilic groups capable of reaction with the m nucleophilic groups to form covalent bonds, wherein n≧
2 and m+n≧
5, wherein each of the first and second crosslinkable components is biocompatible and synthetic, and crosslinking of the components results in the biocompatible crosslinked composition. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
- 2 with (b) a second crosslinkable component having n electrophilic groups capable of reaction with the m nucleophilic groups to form covalent bonds, wherein n≧
Specification