基于体外超声波供能的体内微致动器与微电源的研究

摘要

提出基于体外超声波供能的体内微致动器和微电源设计方案。微致动器、微电源内有超声波吸收液体，将体外发射到体内的超声波吸收转换为热能。热能传递给热膨胀液体，液体热胀冷缩，获得机械伸缩动作。升温后的超声波吸收液体和人体温度差，可以通过热电元件，转换为电能。%Design project of micro actuator and micro power supply in vivo based on energy from ultrasonic in vitro was proposed. Transmitted ultrasonic in vitro was absorbed by ultrasonic absorbing liquid in micro actuator or in micro power supply, and then was conversed into heat. The mechanic movement of flex could be achieved if the heat was transferred into the liquid with high thermal expansion and contraction coefficient. Electric energy can be transformed by thermo-electric element because of the temperature difference between the liquid after raised and the temperature in vivo.