Malleable penile prosthesis

A malleable penile prosthesis adapted to be implanted in a corpus cavernosum of a penis comprising an elongated core having an unbent straight configuration about a longitudinal axis, a distal end and a proximal end, which core is bendable about said axis with the capability of holding a configuration to which it is bent and is substantially rigid when in the unbent straight configuration, a sleeve of braided biocompatible material having an inner surface and an outer surface enveloping said core with the inner surface of the sleeve in contact with the core and an outer tube of elastomeric material containing the sleeve and core, said tube having a wall with an outer surface and an inner surface, a distal end and a proximal end, each of said ends having a substantially rounded smooth outer surface, said outer surface of the wall being substantially smooth and said inner surface having a profile formed of alternate grooves and ribs in a substantially helical arrangement.