Abstract
This paper is concerned with the development of an artificial urethral valve for treating urinary incontinence, which is driven by shape memory alloy actuators. The latest valve has been modified by adding the SMA for the closing, which has the effect of preventing incorrect actions. Further, a compact, non-contact induction heating system using power transmission coils is introduced, which is improved by using an oscillation and amplifier circuit. It is found that the valve shows good opening and closing functions experimentally by using the urethrae of male dog through the induction-heating system.
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