| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible tube with a simple structure which can miniatureize and bend at the arbitrary place of the tube sufficiently. SOLUTION: This flexible pipe 10 is constituted so that the coil 11 consisting of a shape memorizing alloy for generating an axial direction force based on a temperature change and catheter 13 to which the coil 11 is fixed along a periphery surface are provided and the part with a different softness in the axial direction at a periphery direction position is formed in the thickness of the catheter 13, by providing a recessed part 17 on one part of the outer periphery of the catheter 13. |
