公开(公告)号：US20160067069A1

公开(公告)日：2016-03-10

申请号：US14785304

申请日：2014-04-15

Applicant: PIOLAX MEDICAL DEVICES, INC.

Inventor： Kiyoshi YAMAUCHI ,  Michihiro UEGAKI ,  Yoshihide TOYOKAWA

IPC: A61F2/91 ,  B23K26/146 ,  C22C19/07 ,  B23K26/40 ,  C22F1/10 ,  C22C19/00 ,  A61L31/02 ,  B23K26/38

CPC classification number: A61F2/91 ,  A61F2/915 ,  A61F2210/0014 ,  A61F2240/001 ,  A61L31/022 ,  B23K26/146 ,  B23K26/38 ,  B23K26/40 ,  B23K2103/14 ,  C22C19/007 ,  C22C19/07 ,  C22F1/10

Abstract: This stent is a self-expandable stent constituted of an Ni—Ti base alloy or Co—Cr base alloy and formed into a cylindrical shape with mesh openings. The stent has been configured so that the Af point is 22-26° C., the stress-displacement curve has a yield point, and the crystal grains in a cross-section of the stent have an average cross-sectional area, as determined by the area fraction method, of 0.2-50 μm2.

Abstract translation: 该支架是由Ni-Ti基合金或Co-Cr基合金构成的自膨胀支架，并形成为具有网孔的圆筒形状。 支架已经被配置为使得Af点为22-26℃，应力 - 位移曲线具有屈服点，并且支架横截面中的晶粒具有如所确定的平均横截面积 按面积分数法计算为0.2〜50μm。