FLEXIBLE AND BLOOD-VESSEL-FRIENDLY STENT WITH EXCELLENT BLOOD VESSEL FOLLOWING PROPERTY AND DILATIVITY

摘要

PPROBLEM TO BE SOLVED: To provide a flexible stent which is excellent in following property to a lumen, etc., (accordingly, it passes the three-dimensionally snaking lumen), by which a horizontal hole is easily formed, and which is uniformly dilated without substantial shortening (shortening of luminal length) and is good for the lumen, etc. PSOLUTION: The stent comprises: a plurality of circular members 1 which are arranged in a longitudinal axial direction so as to be dilatable in a radius direction; and one or a plurality of connection elements 2 for connecting the adjacent circular members 1 in the longitudinal axial direction. The circular members 1 are formed in a pattern where oppositely directed shape elements 11, 12 are alternately, continuously and repetitively snaking in a circumferential direction. The adjacent circular members 1 are arranged by deviation of 1/2 wave length concerning a phase and connected with the wave crests 111, 121 of the nearest shape elements 11, 12. PCOPYRIGHT: (C)2005,JPO&NCIPI