Abstract
Ten years after the introduction of the Scott three-piece inflatable penile prosthesis in 1973 (American Medical Systems, Minnetonka, MN) (1), Mentor Corporation introduced their first three-piece inflatable penile prosthesis, the Mentor IPP (Surgitek, Racine, WI) (2). This device provided an alternative for improving the mechanical reliability of the three-piece inflatable penile prosthesis, which had been reported to be as high as 42% in some series (3). The most important advance that Mentor brought to the field of penile prosthetics was the introduction of a new material, known as Bioflex. Biofelx is an aromatic polyether urea urethane elastomer that provided a tensile strength seven times higher than that of silicone without sacrificing biocompatibility and hemocompatibility (4–6). The physical characteristics of this material, virtually eliminated cylinder failures as a result of aneurysms or wear-induced abrasion, and provided the widest inflatable cylinder girth expansion available.
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