Penile prothesis with pump rotor directly actuated by rotating m

Details Penile prothesis with pump rotor directly actuated by rotating m Penile prothesis with pump rotor directly actuated by rotating m

1997-04-12

1998-09-08

Lacyk, John P.

Surgery

Sexual appliance

Male splint

A61F 500

Patent

active

058038973

ABSTRACT:
A penile prosthesis includes a rotary pump for pressurizing a bag or chamber within the penis. The rotary pump includes a magnetically active rotor which, in one embodiment, is located within the penis, which can be made to spin by a rotary magnetic field generator. The rotary magnetic field generator may be similar to those used in conjunction with brushless DC motors, or it may be a permanent magnet spun about an axis. In operation of one embodiment, the magnetic field generator surrounds the penis at a location near the rotor. The rotor drives an impeller or blades which pressurize fluid from a reservoir, and tends to pressurize the bag or chamber to thereby render the penis rigid. A valve arrangement prevents loss of pressure when the rotating field is removed. In one embodiment, the valve arrangement includes a spring-operated check valve in conjunction with another valve, and in another embodiment, a single centrifugally-operated valve performs the same function. Other embodiments locate the rotary pump under the skin in the retropubic region or the scrotum, at locations at which a rotary magnetic field generator can rotate the pump rotor.

REFERENCES:
patent: 4572168 (1986-02-01), Fischell
patent: 4584994 (1986-04-01), Bamberger et al.
patent: 4941461 (1990-07-01), Fischell
patent: 5437605 (1995-08-01), Helmy
Which Patients, Which Devices For Prosthesis Implantation? D. Montague pp. 17-27 of Apr./May 1989 Issue of Contemporary Urology.
Development of a Penile Prosthesis--The Hydroflex by C. Porter, pp. 149-163 of Urology Clinics of North America, vol. 16, No. 1 Feb. 1989.

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