It comprises a fabric (2) of implantable material including a first portion (3) for the fastening of said fabric to one or more points of the pelvic cavity, a second portion (5) which is joined to said first portion (3) for the fastening of said fabric (2) to said pelvic organ (1 a, 1 b), wherein said second portion (5) of fabric (2) includes two sections (5a,5b) of fabric (2) to respectively fix in the anterior and posterior part of said pelvic organ (1 a, 1 b), said two sections (5a,5b) of fabric (2) being disposed substantially parallel in the same plane and separated from one another by a distance "d", said second portion (5) of fabric (2) further comprising a third section (5c) of fabric which acts as connecting bridge of said two sections (5a,5b) to cover said distance "d" of separation, making it possible for said third bridge section (5c) of fabric (2) to partially surround said pelvic organ (1a,1b) to place said two sections (5a,5b) of fabric (2) in the anterior or posterior part of said organ (1a,1b).
