Abstract: Typical embodiments of the invention overcome male sexual dysfunction or impotence. Illustratively, a prosthetic device for implantation within the penis has a pumping mechanism that is integral with and is in fluid communication with two fluid storage sections. Fluid is pumped manually from the proximal storage section to distal storage section and then to four distal expansile sections that inflate to render the penis rigid and capable of sexual activity. Undesirable shrinkage of the erect penis is avoided through a rigid frame and bellows that prevent the proximal reservoir from contracting longitudinally and radially as fluid is withdrawn from this storage section to produce the erect penis.

Abstract: Typical embodiments of the invention overcome male sexual dysfunction or impotence. Illustratively, a prosthetic device for implantation within the penis has a pumping mechanism that is integral with and in fluid communication with a fluid storage section. Fluid is pumped manually from storage to a distal expansile section that inflates to render the penis rigid and capable of sexual activity. Undesirable distention of the penis is avoided through a pressure relief valve that permits fluid to flow from the expansile section back into the storage section if the pressure in the expansile section becomes too great.