Polysaccharide gel composition
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United States of America Patent
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Oct 27, 1998
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app pub date -
Jul 17, 1995
filing date -
Jul 17, 1995
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Abstract
The present invention provides a process for preparing a cross-linked biocompatible polysaccharide gel composition, which comprises: forming an aqueous solution of a water soluble, cross-linkable polysaccharide; initiating a cross-linking of said polysaccharide in the presence of a polyfunctional cross-linking agent therefor; sterically hindering the cross-linking reaction from being terminated before gelation occurs, an activated poly-saccharide being obtained; and reintroducing sterically unhindered conditions for said activated polysaccharide so as to continue the cross-linking thereof to a viscoelastic gel. The invention also provides a gel composition obtainable by such a process as well as gel compositions for different medical uses.
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