Surgery – Truss – Perineal
Patent
1983-11-09
1985-11-05
Hirsch, Paul J.
Surgery
Truss
Perineal
623 14, A61F 500
Patent
active
045507198
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a novel implantable penile erectile system. More particularly, it relates to an implantable penile erectile system which can be pressurized to effect an erection and thus is useful in the treatment of erectile impotence.
BACKGROUND ART
Some cases of erectile impotence do not respond to conventional therapy and, as a result, the surgical implanting of a penile erectile system may be the only practical means of remedying the impotency.
In the past, several different types of penile erectile systems have been employed. One type of penile erectile system which is currently available is an inflatable system which includes two inflatable and distensible tubes both of which are surgically implanted in the corpora cavernosa of the penis. Each of the two tubes is connected by tubing to a relatively large reservoir of inflating fluid which is implanted elsewhere in the body necessitating additional abdominal surgery.
Another type of penile erectile system in use comprises a pair of rods of suitable stiffness which are surgically implanted into the corpora cavernosa of the penis. A significant advantage of this system is that the amount of surgery involved is minimal as there is no pressure bulb to implant. A disadvantage of this system is that the permanent stiffness of the rods can be a source of physical pain and embarrassment to the patient.
DISCLOSURE OF THE INVENTION
It is the general object of the present invention to disclose a novel implantable penile erectile system which when non-pressurized allows the penis to assume a normal flaccid state and which can be pressurized to effect an erection.
It is a further object to disclose such a pressurizable implantable penile erectile system that can be implanted completely in the penis making abdominal or scrotal surgery unnecessary.
In the preferred embodiment the penile erectile system consists of two identical, independent self-contained, pressurizable implants which can be surgically implanted completely within the penis as easily as implanting a prior art rod type implant.
The implants of the preferred embodiment of the penile erectile system of the present invention each have a relatively short, proximal stem, a distal tip and an elongated flexible intermediate poriton containing a pair of concentric cylindrical chambers. In the non-pressurized state both of the chambers of the implant which are substantially filled with hydraulic fluid are connected by a passage so that the hydraulic fluid present in the outer chamber can be transferred to the inner chamber which is non-distensible to pressurize it and make it rigid. The preferred implant also includes pump means adjacent the stem for transferring fluid under pressure from the outer chamber to the non-distensible inner chamber and a pressure control valve adjacent the tip which can be used to limit the pressure in the inner chamber and to depressurize it. The implants, which comprise tne entire penile erectile system, can be implanted in the corpora cavernosa in the same manner as the prior art penile rod implants.
When the preferred implants are in place, the inner chambers of the implants are pressurized by pumping the hydraulic fluid from the outer chambers into the non-distensible inner chambers under pressure making them to become rigid and causing the penis to assume an erectile position.
The penile erectile system of the present invention, in addition to being compact and thus minimizing the amount of surgery required, also has the advantage of having a minimum number of fluid connections, thus reducing the risk of leakage.
BRIEF DESCRIPTION OF DRAWINGS
In the drawings:
FIG. 1 is a side view, partly in section, of the preferred embodiment of the penile erectile system of the present invention showing one of the two identical penile implants surgically implanted in a male and in a non-pressurized condition;
FIG. 2 is a side view similar to FIG. 1, except that the implant is pressurized;
FIG. 3 is an enlarged cross sectional view taken along the
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Finney Roy P.
Lynch Henry W.
Trick Robert E.
Hirsch Paul J.
Medical Engineering Corporation
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