| 摘要 |
A forceps raiser for raising up a treatment instrument, i.e., forceps (16), is composed of a shape memory alloy plate varying in shape in accordance with temperature. A power source (20) is connected to the shape memory alloy plate to supply a current to the shape memory alloy plate (17), thereby heating the shape memory alloy plate (17), and the shape memory alloy plate (17), i.e., the forceps raiser is varied in shape to raise the forceps (16). |
