| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheath and a sheath dilator capable of reliably preventing misalignment between a dilator and a sheath while suppressing the component manufacturing costs.SOLUTION: A sheath for inserting a catheter into a fistula, comprises: a cylindrical sheath body; and a connector for holding one end of the sheath body. The connector includes a restraining member which integrally locks a dilator for expanding the diameter of the fistula. In addition, the restraining member is formed of a material with a higher friction coefficient than a material of which the connector is formed with respect to the dilator. |
