Patent ID: 9724446
Date: 2017-08-08
CPC Classifications: A61L,Y10T

Claim:
1. A method for making a hemocompatible material comprising a resistant and impervious synthetic substrate and an animal biological tissue, said method comprising the steps of: chemically fixing said animal biological tissue so as to avoid immunological reactions, chemically, dehydrating said fixed animal tissue without lyophilizing, and gluing said chemically dehydrated animal biological tissue onto said synthetic substrate through a dispersion of constituent material of said synthetic substrate in a solvent by impregnating said animal biological tissue with said constituent material and then removing said solvent, wherein the step of dehydrating said fixed animal tissue is a chemical dehydration obtained only by a chemical way through immersing said fixed animal biological tissue in a bath made of an aqueous solution of polyethylene glycol of at least 80% in weight, and said fixed animal biological tissue is immersed in said bath for about 24 hours, and wherein said bath is an aqueous solution comprising at least 80% in weight of polyethylene glycol and 10% in weight of alcohol.