Abstract: A process for preparing a heterograft substitute blood vessel comprises digesting a properly pretreated pig blood vessel with a digesting solution containing an animal proteolytic enzyme so as to retain collagenous and elastic fiber constituents substantially in the original state and substantially remove away other tissue constituents of said blood vessel than said two kinds of constituents, and then fixing the resulting digested blood vessel into a desired shape with a liquid fixing agent.
Type:
Grant
Filed:
August 4, 1976
Date of Patent:
July 4, 1978
Assignees:
Kaneyasu Miyata, Izumi Amano, Kohei Toda