Patent ID: 7618445
Filing Date: 2009-11-17
Classification: A61F

Abstract:
1. A stent comprising: a plurality of wavy annular members arranged in an axial direction thereof, wherein each of said wavy annular members has a plurality of one-end side bent portions each having an apex at a one-end side of said stent in said axial direction thereof and a plurality of other-end side bent portions each having an apex at an other-end side of said stent in said axial direction thereof; and in said wavy annular members disposed adjacently to each other in said axial direction of said stent, said wavy annular member disposed at said one-end side of said stent in said axial direction thereof has a sharing linear portion having a start point at or in the vicinity of said apex of one of said other-end side bent portions of said wavy annular member disposed at said one-end side of said stent, and a termination point between said apex of said other-end side bent portion of said wavy annular member disposed at said one-end side of said stent and said apex of one of said one-end side bent portions of said wavy annular member disposed at said one-end side of said stent, wherein said wavy annular member disposed at said one-end side of said stent comprises both the start point and the termination point of said sharing linear portion; said stent having a plurality of said sharing linear portions integrating said adjacent wavy annular members with each other; wherein said sharing linear portions comprises first pattern sharing linear portions extending obliquely with respect to said axial direction of said stent and second pattern sharing linear portions extending obliquely with respect to said axial direction of said stent in a direction different from the direction in which said first pattern sharing linear portions extend, and wherein said first pattern sharing linear portions and said second pattern sharing linear portions are disposed alternately in said axial direction of said stent; wherein said wavy annular member has a short linear portion connecting said start point of said sharing linear portion thereof and the apex of said other-end side bent portion thereof to each other; and wherein said short linear portions each connecting said start point of said sharing linear portion and said apex of said other-end side bent portion to each other are formed not continuously in said axial direction of said stent, but said short linear portions are formed substantially straight.