Catheter

摘要

A catheter that can efficiently transmit a pressing force applied to the distal end of the catheter without breaking at a midpoint of the catheter. The catheter includes a metal tube having a first wall and a second wall disposed in an outer tube, and a reinforcing member that is joined at its proximal end to an outer peripheral surface of the first wall. A distal end of the first wall extends distally beyond a distal end of the second wall and is bent toward the second wall. Thus, the second wall is not provided at a connected portion between the first wall and the proximal end of the reinforcing member, and the reinforcing member having a diameter increased at least by an amount corresponding to a thickness of the second wall can be disposed in the catheter without increasing the diameter of the outer tube.

主权项

1. A catheter comprising:
an outer tube; a metal tube inserted into the outer tube; a first inner tube inserted into the metal tube; and a reinforcing member inserted between the outer tube and the first inner tube and extending in a longitudinal direction,
wherein:the metal tube has a first wall and a second wall opposed to the first wall, and a distal most end of the first wall extends distally beyond a distal most end of the second wall and is bent toward the second wall, anda proximal most end of the reinforcing member has a recess, and the distal most end of the first wall does not extend distally beyond the recess.