Abstract: A technique for the treatment of male impotence. The apparatus to be implanted in the corpus cavernosum of the penis is a cylinder of an implantable polymer. The cylinder is generally flexible and has a plurality of transitions from a lesser diameter to a greater diameter. As the cylinder is filled with fluid under pressure, the areas of lesser diameter tend to expand, thereby effectively lengthening the cylinder without an unacceptable increase in girth. Optional rings may be positioned over the areas of lesser diameter to prevent collapse. An optional outer sheath also improves longitudinal stability.

Abstract: An apparatus for the treatment of male impotence. The apparatus has a cylinder of a biocompatible polymer which is implanted in the corpus cavernosum of the penis. The cylinder is attached at its proximal end to a base mount which is implanted in the pelvic area. In the flaccid state, the cylinder is empty and limp, and a spring within the cylinder folds the cylinder wall in upon itself to decrease its effective length. Fluid is pumped into the cylinder causing it to stiffen in the erect state. The effective length of the cylinder is increased by the addition of the fluid which compresses the internal spring and unfolds the cylinder. In this manner, the length of the penis is increased from the flaccid to the erect state.

Abstract: A penile prosthesis employing an improved pump and valve system. The main body of the prosthesis has at least one inflatable polymer cylinder suitable for implantation within the corpus cavernosum of the male patient. The penis of the patient is rendered erect by pumping a sterile fluid into the inflatable polymer cylinder(s) under adequate pressure.The sterile fluid is supplied from a reservoir and pump implanted within the scrotum of the patient which are linked to the inflatable polymer cylinder(s) by flexible tubing. The reservoir is a relatively low pressure flexible polymer bag of relatively large volume. Coupled to the reservoir by a valved diaphragm is a pump having only much less flexible walls and a relatively small volume.Manual squeezing of the reservoir forces sterile fluid through the valved diaphragm into the pump chamber.

Abstract: A system for collapsing the lens loops of an intraocular lens in preparation for insertion of the lens into a human eye and forming and maintaining the lens loops in a collapsed position during the lens insertion operation. The system includes an apparatus for mating the intraocular lens with an incapsulating structure such as a wafer fabricated from viscoelastic material. The device is designed in a manner which causes the lens loops of the intraocular lens to collapse as the lens is inserted into the incapsulating structure during the mating process. In a preferred embodiment, the device may comprise a rotor element mounted on a baseplate for supporting the intraocular lens beneath the incapsulating structure, whereby the lens can be rotated or "dialed" into the incapsulating structure.

Abstract: A disposable plastic syringe sleeve (2) is disclosed. The syringe sleeve (2) is adapted to receive the body (42) of a conventional glass hypodermic syringe (40), which glass hypodermic syringe (40) has a luer tip (44) extending therefrom. A threaded section (10) formed at one end (12) of the syringe sleeve (2) cooperates with the luer tip (44) of the glass hypodermic syringe (40) and the threads (54) on a hypodermic needle (52) to provide positive luer locking for the needle 52. An enlarged finger grip (20) with a retaining mechanism (32) is formed at the other end (24) of the syringe sleeve (2). The retaining mechanism (32) operates to retain the glass hypodermic syringe (40) in position after the syringe sleeve (2) has received the syringe body (42).