Porous, distensible, gel-like membranes which in tubular form are suitable as implants, e.g., vascular prostheses and a process for the preparation thereof is described. The membranes are formed by a spraying, phase-inversion technique which employs thermodynamically unstable polymer solutions and is...http://www.google.es/patents/US5387621?utm_source=gb-gplus-sharePatente US5387621 - Porous membranes based on unstable polymer solutions
Porous membranes based on unstable polymer solutions
