German inventor Clemens Bimek has invented a switch, which can turn off the flow of sperm from a man’s testicles, making him temporarily infertile.
Bimek told the idea first came to him some 20 years ago, when he was watching a television documentary about contraception, and wondered whether it would be possible to control the flow of sperm with a simple valve. The Valve is a tiny switch that’s implanted into the spermatic ducts, or vas deferens, located in the testicles.
By clicking the switch through the skin of the scrotum, the wearer can stop the flow of sperm. To clarify, there is still ejaculate. It just doesn’t contain sperm. It functions in a similar way to a vasectomy – except the sperm switching off is reversible, and easily controlled by the wearer.With this implant, men could control their ability to have a child. Bimek made his first prototype in 2006. According to the company, the implant « disrupts the flow of sperm cells when closed ». It can work for life and is healthier than pills. For the moment, Bimek is the only man to have it implanted. The company plans to start clinical trials this year on 25 men and to place the product on the market by 2018.