Patent 7822464 was granted and assigned to Siemens Aktiengesellschaft on October, 2010 by the United States Patent and Trademark Office.
Guidewire for catheters which can be inserted into cavities, preferably coronary vessels of humans or animals, said guidewire being provided with electromagnetic receive or transmit locate to position its position in conjunction with corresponding external electromagnetic transmit or receive antennas, as well as with signal lines guiding the processing unit controlling the transmit antennas or transmit coils.