A remote-controlled contraceptive computer chip which would be implanted under the skin has been developed with the backing of Bill Gates.
The chip, which would last for 16 years, would release levonorgestral daily, a hormone which is used to prevent pregnancy.
However with the new implant, a woman could choose when to deactivate or reactivate the chip using a wireless control.
It is designed to be implanted under the skin of the buttocks, upper arm, or abdomen.
The implant provides a long-term solution to birth control and would mean no more trips to the clinic or a procedure to remove the implant.