Dacomed Corporation

Donald L Sandford

Gerald W Timm

Richard A Helms

Timothy J Claude

A bistable penile prosthesis (20) designed to be surgically implanted in the penis for the treatment of erectile impotence. The prosthesis includes an articulated column (26) enclosed within an outer elongated sheath (28). The articulated column (26) has segments (250) including interlocking means for reducing radial slippage between the facing ends of adjacent ones of the segments (250) whereby the likelihood of the segments (250) becoming disjointed is reduced.

Penile prosthesis having an actuator means interacting with a member and

A bistable penile prosthesis (20) designed to be surgically implanted in the penis for the treatment of erectile impotence. The prosthesis includes an articulated column (26) and an actuator apparatus (30) enclosed within an outer elongated sheath (28). The actuator apparatus (30) is configured and disposed for alternately compressing the articulated column (26) and tensioning a tension member (32) whereby frictional resistance increases causing an erect state, and stretching the articulated column (26) and relaxing the tension member (32) whereby frictional resistance decreases causing a flaccid state under volitional control by the patient. The actuator (30) includes a cam member (68) defining a pathway for travel therealong by a cam follower member (86) in only one direction.

Penile prosthesis utilizing patient controlled cam actuator apparatus

A penile prosthesis (20) designed to be surgically implanted in the penis for the treatment of erectile impotence. The prosthesis comprises an articulated column (26) having alternating joints (56) enclosed with a switch (30) within an outer elongated sheath (28). The switch (30) is aligned for reversibly extending the articulated column (26) against the ends of the sheath and tensioning a tension member (32) whereby frictional resistance at the joints (56) increases causing an erect state.

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Lauderdale, MN, United States of America

Donald L Sandford