In order to solve the problems from the energy supply in vivo and vitro of artificial anal sphincter system, such as no energy supply equipment or the infection caused by equipment replacement, a wireless transcutanous energy transfer system was developed based on the electromagnetic coupling theory. According to the research of the energy transfer circuit, sending and receiving coils, this study pointed out an efficient method for transmitting energy, which included using SRC circuit, enlarging coupling area of cores and raising the value of Q parameter. More than 60% of transmission efficiency can be steadily received with G25 cores by electromagnetic coupling in the experiments at the axial separation of 10mm, which would guarantee the normal work of artificial anal sphincter.
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