Sex & Relationships

German Carpenter Invents Switch to Block the Flow of Sperm

Is a new form of male contraception finally here?

Photo Credit: Shutterstock

Meet Clemens Bimek, the German carpenter at the center of what could be a major breakthrough in male contraception. Bimek claims to have invented a "switch" that allows men to block the flow of sperm. He believes his invention will help shift the “burden of birth control” onto men.

The valve is meant to be placed under the thin skin of the scrotum, reports the German magazine Spiegel.

“Many of the doctors I consulted didn’t take me seriously,” Bimek told Spiegel. “But there were some who encouraged me to go on tinkering and helping me with their expertise."

The implant is less than one inch long and weighs less than one-tenth of an ounce. Bimek has already volunteered to have the device surgically implanted. Hartwig Bauer, the urologist who performed the operation, suggests the invention could come to replace the vasectomy. According to Bauer, a third of patients who undergo vasectomies decide to have the procedures reversed, but, “it doesn’t always work.”

Wolfgang Bühmann, spokesman for the Professional Association of German Urologists, is wary. “My assessment is that implanting the valve could cause scarring where it meets the vas deferens."

According to Bühmann, the scarring could prevent the flow of sperm even when the valve is open. He also noted that the valve could become clogged overtime if left in the closed position.

The device, named the Bimek SLV, will be implanted in 25 men in trials starting this year.

Check out the video below to see how it works. 

H/T New York Daily News

Carrie Weisman is a writer focusing on sex, relationships and culture. 

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