STENT WITH AUTONOMIC FUNCTIONS

摘要

To provide a stent which has excellent delivery properties, an effect of preventing renarrowing, a highly flexible and shape follow up performance and so on and is applicable not only to the bile duct but also to blood systems such as the coronary artery. Namely, a stent with autonomic functions which is made of a Ti-Ni based shape-memory alloy and has the maximum expansive force at the center in the lengthwise direction.