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Top: Caverject.  ED can be successfully treated by injecting certain drugs into the corpora cavernosa, which is the spongy tissue that holds the blood during an erection. Middle: The Heidelberg Belt used voltaic batteries to generate a current to the wearer, increasing circulation and stimulating nerves; it was designed to cure 'weakness peculiar to man.' Bottom: Galvanic Ring is a hard rubber ring with voltaic batteries that was placed around scrotum to improve sexual function.  Donor Steve Chekey.

Yet, despite the accelerated pace in recent years, research on female sexual dysfunction still lags behind that of men, who, for centuries have taken desperate measures to recapture their sexual vigor. While "lost manhood" charlatans of the early 1900s hawked bogus testicular rejuvenation extracts, physicians attempted to "renew" patients by grafting human cadaver testicles into them.

Though these treatments failed, they did succeed in energizing Texas surgeon J.S. Wooten (1902) and Illinois professor G.F. Lydston (1908) who conducted the first penile surgeries by tying off blood vessels to cause engorgement. Later, N.A. Bogoras (1936) and R.T. Bergman (1948) inserted rib cartilege for rigidity

The heroes behind the modern penile prosthesis were urologists who fashioned the first successful inflatable penile prosthesis. By 1973, F. Bradley Scott and his Houston colleagues had succeeded in implanting a device into the penis that could be pumped with saline to achieve erection. Shortly thereafter, urologists Michael Small and Hernan Carrion introduced an implantable, rigid rod as a prosthesis. While others added silver wire and hinges, these models were the prototypes of today's prostheses.

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