Imagine being able to turn the flow of your sperm on and off by the click of a button inside your balls – well it could soon be a reality.
German carpenter Clemens Bimek thought up this bizarre new answer to male contraception 20 years ago while he was watching a documentary about contraceptives.
He was hit with the idea that you could invent a simple valve that was “as small as a gummy bear” which could be easily controlled by hand through the scrotum skin.
The entrepreneur built the first prototype of the Bimek SLV back in 2006.
“Many of the doctors I consulted didn’t take me seriously. But there were some who encouraged me to go on tinkering and helped me with their expertise,” he told Spiegel magazine. He reckoned his invention could “change the world” because it would revolutionise birth control and mean the end of vasectomies.
So far, Clemens is the only person to have it fitted, but that’s all about to change. The device is going to be tested out on 25 lads in trials starting this year.
And while you might shudder at the thought of getting a 1.8cm valve fitted near your tackle, the operation takes less than half an hour under local anaesthetic.
Clemens even talked the doctor through his surgery which was a success.
He warned that scarring could stop sperm flowing even when the valve is open and worried that it could become clogged if it was turned off for too long.
"Other implants made of this material have been well tolerated elsewhere in the body,” said Anneke Loos, head of a testing centre for medical products in Hannover. “The question is whether it will cause problems when it is implanted in this area.”
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