Surgical hydrogel
First Claim
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1. A composition comprising a dicarboxy-derivatized chitosan polymer cross-linked to an aldehyde-derivatized dextran polymer.
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Abstract
A composition suitable for use in wound healing, particularly for reducing post-surgical adhesions, containing cross-linked derivatives of chitosan and dextran polymers. A hydrogel forms when solutions of the polymers are combined.
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19 Claims
- 1. A composition comprising a dicarboxy-derivatized chitosan polymer cross-linked to an aldehyde-derivatized dextran polymer.
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14. A method of producing a composition of a dicarboxy-derivatized chitosan polymer cross-linked to an aldehyde-derivatized dextran polymer, comprising mixing an aqueous solution of a dicarboxy-derivatized chitosan polymer with an aqueous solution of an aldehyde-derivatized dextran polymer.
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18. A method of treating a tissue comprising applying to said tissue:
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(a) an aqueous solution of a dicarboxy-derivatized chitosan polymer; and (b) an aqueous solution of an aldehyde-derivatized dextran polymer, such that (a) and (b) combine to form a cross-linked composition on said tissue.
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19. A kit comprising:
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(a) dicarboxy-derivatized chitosan polymer, and (b) an aldehyde-derivatized dextran polymer.
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Specification