Patent ID: 9566296
Date: 2017-02-14
CPC Classifications: A61F,A61K,A61L

Claim:
1. A foldable or flexible biodegradable polymer matrix for reducing, preventing or treating adhesions in a patient in need thereof, the matrix comprising a first porous layer comprising collagen and a second porous layer comprising collagen and dextran, wherein the dextran is loaded in the second layer in an amount of from about 5% to about 90% by weight based on a total weight of the matrix and the matrix reduces cell growth therein, and the matrix is configured to be folded into a wrap and configured to release from about 20% to about 90% of the dextran loaded in the matrix within 24-48 hours, wherein the first layer comprises pores that have a pore size from about 250 to about 1000 microns and the second layer comprises pores that have a pore size from about 0.05 to about 200 microns.