Kaneka Corporation

Toshiya Kisa

The objective is to provide a catheter that can realize a desired curve shape by preventing the curving axis of the catheter distal part from twisting, and preventing the catheter from kinking and decreased pushability. Disclosed is a catheter () having a shaft (); at least one wire (); a coil (); a leaf spring () having a first connection part () where its proximal part is fixed to a distal end part of the coil (); and a cover tube (), wherein the coil () has a fixed part () where it is fixed to the shaft () at a position proximal to the proximal end of the cover tube (); and the length from the distal end of the fixed part () to the proximal end of the cover tube () in the longitudinal direction is a length of 20 windings of the coil () or shorter.

Catheter

A balloon catheter includes a shaft extending in one direction; a balloon disposed on the shaft; a first lubrication region; and a second lubrication region. The balloon in an expanded state includes a straight pipe portion; a first tapered portion disposed at a first end of the straight pipe portion in a long axis direction of the shaft; and a second tapered portion disposed at a second end of the straight pipe portion positioned opposite to the first end of the straight pipe portion in the long axis direction. Each of the first tapered portion and the second tapered portion tapers away from the straight pipe portion, and the first lubrication region extends over the straight pipe portion and the first tapered portion.

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Osaka, Japan

Toshiya Kisa