Single phase gels for the prevention of adhesions
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1. A method for preparing a water insoluble biocompatible composition comprisingreacting a polyanionic polysaccharide with divinyl sulfone in an aqueous solution to form a gel, neutralizing the pH of the solution, and precipitating a solid from the neutral solution.
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Abstract
Single phase gels for preventing the formation of surgical adhesions are disclosed. The gels are prepared by reacting an aqueous solution of a polyanionic polysaccharide, such as hyaluronic acid or carboxymethyl cellulose, with divinyl sulfone, to form a gel, the solution is neutralized, and a solid is precipitated from the solution. The solid can be redissolved in water to form a gel having properties which can be modified to suit a particular application.
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15 Claims
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1. A method for preparing a water insoluble biocompatible composition comprising
reacting a polyanionic polysaccharide with divinyl sulfone in an aqueous solution to form a gel, neutralizing the pH of the solution, and precipitating a solid from the neutral solution.
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