December 2, 1986 (Bingyin winter and beginning of the month), electronic methods of contraception invention. In In In December 1986, ŦԼ�²�˹ - Ferry Hospital Director Steven - Cali Dr. laboratory animal testing successfully invented the "electronic contraception & rdquo ; new method, and has been allowed to patent an invention of the United States Patent Office.


this electronic method of contraception, and 2 mm thick, 7 mm long and a miniature battery is placed in the cervix, cervical mucus discharge, the formation of a low-voltage electric field through the cervix, the weak electric field elephant cage "caged" and within a few seconds to kill sperm.
Allegedly, this new method of contraception in laboratory animal experiments, "100% effective, but still needs to be tested in the human body. Above using a micro-battery is a special, extremely low voltage is only 3.3 volts, the amount of power it released the amount of energy required is much smaller than an electronic watches run, it will not bring any problems.