Terumo Kabushiki Kaisha

Ayumu Takagi

Tetsuya Fukuoka

Daisuke Nakashima

Hiroyoshi Ise

Katsunori Ebata

Satoshi Takeshita

Ryusuke Takashige

The presently disclosed subject matter relates to a catheter and method. The catheter can be configured as a guiding catheter with a flexible shaft section, a hub disposed at a proximal portion of the shaft section, and a strain relief section that surrounds a predetermined proximal-side range of the shaft section. A distal end of the strain relief section can be moved along an axial direction of the shaft section at least toward the side where the hub is located.

Catheter and method

Disclosed herein is a catheter for a left coronary artery having a distal end for being introduced into an opening of the left coronary artery from an artery of an arm. The catheter can include a catheter main body including a main body portion of a substantially linear shape in a natural state thereof and a curved portion extending from the main body portion to form a portion that extends to the distal end and has a curved shape in a natural state thereof.

Catheter for left coronary artery and engaging method therefor

A catheter for a coronary artery can include a distal end for being introduced into an opening of a coronary artery from an artery of an arm. The catheter can, include a catheter main body including a main body portion having a substantially linear shape in a natural state and a curved portion forming a portion extending from the main body portion to the distal end and having a curved shape in a natural state. The curved portion can include a first curve extending in a curved state from the main body portion, an intermediate portion extending from the first curve, a second curve extending from the intermediate portion and curved in a direction same as that of the first curve, and an extreme distal end portion of a substantially linear shape extending from the second curve. A method of using the catheter is also disclosed.

Catheter for coronary artery and engaging method therefor

A catheter assembly comprises an outer catheter including an outer catheter body and an outer catheter hub at a proximal portion of the outer catheter body; and an inner catheter including an inner catheter body insertable in the outer catheter body, a tip at the distal portion of the inner catheter body which is rich in flexibility, and an inner catheter hub at the proximal portion of the inner catheter body adapted to be coupled to the outer catheter hub. The inner catheter body includes a flexible section connected the tip, a physical property transition section on the proximal side of the flexible section, a first body section on the proximal side of the physical property transition section, a second body section on the proximal side of the first body section, greater than the first body section in flexural rigidity, and having a reinforcing material layer.

Growing community of inventors

Shizuoka, Japan

Ayumu Takagi