A radio-controlled contraceptive implant that could control the flow of sperm from a man’s testicles is being developed by scientists in Australia.
The device is placed inside the vas deferens – the duct which carries sperm from each testicle to the penis. When closed, it blocks the flow of sperm cells, allowing them to pass again when it is opened via a remote control. The valve could be a switchable alternative to vasectomy, the researchers say.
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