A filter apparatus for use in a body vessel lumen having a wall, which may include a first elongate member having a proximal end and a distal end, a second elongate member attached proximate a first end to the first elongate member and having a second end, and a plurality of connectors attached to the...http://www.google.de/patents/US7967747?utm_source=gb-gplus-sharePatent US7967747 - Filtering apparatus and methods of use
