| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sphygmomanometer cuff easily manufactured with a low electric power by facilitating control by reduced heat of a shape-memory alloy and excluding a cause of failure in a shape-memory alloy actuator incorporated in a cuff. <P>SOLUTION: The shape-memory alloy actuator is constituted by connecting a plurality of shape-memory alloy materials having different Martensitic transformation temperatures so as to stepwisely tighten the actuator according to the temperature and facilitate the control by the temperature change. This constitution can reduce a time being in a state around the transformation temperature to exclude a possibility of rewriting the memory of the shape-memory alloy as much as possible. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
