A male contraception apparatus for obtaining temporary sterility of a male mammalian individual is provided. The apparatus comprising an implantable restriction device adapted to restrict vas deference in the region downstream the ampulla during a controlled period, said device thereby being capable of preventing sperms to reach the urethra, a control device for controlling the operation of the restriction device, and at least one implantable sensor adapted to send a measurement or an indication of the measurement to the control device.