An anchor anchors a therapeutic device having an elongated body within a body lumen. The anchor includes a fixation member carried on the device which is adjustable from a first configuration that permits placement of the device in the body lumen to a second configuration that anchors the device within...http://www.google.com/patents/US7452375?utm_source=gb-gplus-sharePatent US7452375 - Body lumen device anchor, device and assembly
