Patent ID: 8142515

Claim:
A composite prosthesis for reinforcement of a tissue structure, comprising a porous textile support which includes an arrangement of threads each composed of at least one filament of nonabsorbable polymer material, the textile support having at least one protected zone and at least one nonprotected zone, the textile support defining a microporous texture comprising interstices located between at least two threads at sites of contact of one thread with at least one other thread, wherein the microporous texture in the at least one protected zone of the textile support is occluded by a hydrophilic absorbable material which coats the textile support, forming a film enveloping and penetrating into the arrangement of threads, and the microporous texture in the at least one nonprotected zone of the textile support is not occluded, the textile support further defining a macroporous texture comprising volumes whose surface is defined by the empty spaces between at least two threads away from the sites of contact, and whose height is defined by a thickness of the textile support, and wherein the macroporous texture of the textile support in a first portion of the protected zone is not occluded by the film and the macroporous texture of the textile support in a second portion of the protected zone is occluded by the film.