Retrievable endoluminal filter

摘要

In one embodiment of the present invention there is provided a filter having a first support member having a first end and a second end; a second support member joined to the first support member at the first end and positioned adjacent the first support member to form a support frame; a material capture structure within the support frame; and a retrieval feature on the first end and on the second end. In one aspect, the first support member or the second support member has a spiral shape. In yet another alternative embodiment, there is provided a device having a first elongate spiral support element having a first end and a second end; a second elongate spiral support element attached to the first end and positioned opposite of a portion of the first elongate spiral support element between the first end and the second end; a filter attached to the second elongate spiral support element and the portion of the first elongate spiral support element; and a retrieval feature attached to the first end.