A magnetically navigable atherectomy device includes a cutting head, a flexible drive shaft having a proximal and a distal end, with the cutting device on the distal end, and a magnet associated with the cutting head, the magnet of sufficient size to allow the cutting head to be oriented by an externally...http://www.google.es/patents/US6733511?utm_source=gb-gplus-sharePatente US6733511 - Magnetically navigable and/or controllable device for removing material from body lumens and cavities
Magnetically navigable and/or controllable device for removing material from ...