| 摘要 |
PROBLEM TO BE SOLVED: To provide a coil body capable of securing sufficient torque transmission properties, and a medical appliance using the coil body.SOLUTION: A coil body 30 comprises a first layer 32 in which a first wire 32a is spirally wound, and a second layer 34 that is provided on the outer periphery of the first layer 32 and in which a second wire 34a is spirally wound. The tensile strength of the first wire 32a is greater than that of the second wire 34a. |
