Sheet materials for cardiovascular and other prosthetic implants are fabricated of synthetic elastomers. These materials are characterized by molecular configurations that produce a nonlinear tensile modulus characteristic similar in shape to that of natural tissue. Selected elastomers, when formed as...http://www.google.fr/patents/US4340091?utm_source=gb-gplus-shareBrevet US4340091 - Elastomeric sheet materials for heart valve and other prosthetic implants
Elastomeric sheet materials for heart valve and other prosthetic implants