ENDOLUMINAL FILTER WITH FIXATION

摘要

An endoluminal filter including a first support member having a first end and a second end and a second support member attached to the first end of the first support member or the second end of the first support member and forming a crossover with the first support member. The endoluminal filter also includes a material capture structure extending between the first and second support members, the crossover and the first end or the second end of the first support member and at least one tissue anchor on the first support member or the second support member. A method of positioning a filter within a lumen including advancing a sheath containing a filter through the lumen. Next, deploying a portion of the filter from the sheath into the lumen to engage the lumen wall while maintaining substantially all of a material capture structure of the filter within the sheath. Next, deploying the material capture structure of the filter from the sheath to a position across the lumen.