Video Of The Day: A German Carpenter Has Invented An On/Off Switch For Your Testicles

Published January 6, 2016
Updated July 12, 2019

A German carpenter is hoping to revolutionize contraception with a simple valve that can turn the flow of sperm on and off with the flip of a switch.

The flow of sperm in humans can now be flipped on and off with the simple flip of a switch. A German carpenter named Clemens Bimek claims that he has invented a revolutionary form of contraception: an on and off valve to control the flow of sperm from the testicles.

The Bimek SLV device utilizes minuscule valves surgically implanted on the vas deferens, the duct that sends sperm from the testicle to the urethra. A switch implanted under the skin of the scrotum controls whether the valves are open or closed. All in all, the implantation procedure is said to take only 30 minutes.

Bimek has already tested his device on himself–an ordeal he says was done with only a low-grade anesthetic so that he could assist the surgeon.

The idea for the device came to Bimek about 20 years ago while he was watching a documentary on contraception. He did some research of his own and learned that there wasn’t a patent for sperm control using a simple valve implant, and then went to work creating his own.

“Many of the doctors I consulted didn’t take me seriously,” Bimek said in an interview for Spiegel. “But there were some who encouraged me to go on tinkering and helped me with their expertise.”

Despite Bimek’s confidence, some fear that the implant could cause scarring and permanently block the vans deferens.

However, implants made with similar materials have been successful in other areas of the body. If successful, the Bimek SLV could be a non-permanent alternative to getting a vasectomy–or it could be detrimental to a man’s health. Either way, the world will soon know if male contraception is as easy as flipping off a light–25 men will receive the implant in trials starting this year.

Nickolaus Hines
Nickolaus Hines graduated with a Bachelor's in journalism from Auburn University, and his writing has appeared in Men's Journal, Inverse, and VinePair.
John Kuroski
John Kuroski is the editorial director of All That's Interesting. He graduated from New York University with a degree in history, earning a place in the Phi Alpha Theta honor society for history students. An editor at All That's Interesting since 2015, his areas of interest include modern history and true crime.
Cite This Article
Hines, Nickolaus. "Video Of The Day: A German Carpenter Has Invented An On/Off Switch For Your Testicles.", January 6, 2016, Accessed April 23, 2024.