Patent ID: 8435227
Filing Date: 2013-05-07
Classification: A61M

Abstract:
1. A catheter for a left coronary artery having a distal end configured to be introduced into an opening of the left coronary artery from an artery of an arm, comprising: a catheter main body including a main body portion having a substantially linear shape in a natural state thereof and a curved portion extending from the main body portion to the distal end and having a curved shape in a natural state thereof; the curved portion including a first curved portion, an inclined portion extending in an inclined direction with respect to the main body portion from the first curved portion, a second curved portion continuing from the inclined portion and curved in an opposite direction to a direction of curvature of the first curved portion, a substantially linear portion continuing from the second curved portion and extending to a third curved portion, and an extreme distal end portion having a substantially linear shape continuing from the third curved portion, the third curved portion being curved in a same direction as that of the second curved portion, wherein the curved portion includes no more than 2 undivided substantially linear sections that are (i) both located after the first curved portion and located before the extreme distal end portion and (ii) separated from one another by a single curved section; the catheter for a left coronary artery being shaped such that, during use, when the first curved portion is positioned in a brachiocephalic artery and the extreme distal end portion is positioned in the opening of the left coronary artery, the second curved portion contacts with an inner wall of an aorta ascendens on a side opposite to a side that includes the opening of the left coronary artery.