| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a self-expandable relocatable device usable as a stent, occluder, or filter with a both ends closing structure. <P>SOLUTION: The self expandable woven intravascular device 160 which is used as the stent, filter, or occluder may be formed of a shape memory metal or a biodegradable material. A delivery system for the device includes two hollow tubes that are operated coaxially. One end of the device may be secured to the outside of the inner tube and the other end 162, 164 of the device may be secured to the outside of the outer tube. The device may be formed of a single wire. The device may be formed by either hand or machine weaving. The device may be created by bending shape memory wires around tabs projecting from a template, and weaving the ends 170 of the wires to create the body 160 of the device such that the wires cross each other to form a plurality of angles, at least one of the angles being obtuse. The value of the obtuse angle may be increased by axially compressing the body. <P>COPYRIGHT: (C)2011,JPO&INPIT |
