Patent 7974678 was granted and assigned to Siemens Aktiengesellschaft on July, 2011 by the United States Patent and Trademark Office.
A catheter for magnetic navigation in the human body, has a magnet arranged in the catheter tip in order to move a catheter to the desired position in the body by interaction with an external magnetic field, and has a number of separated electromagnets, that can be controlled independently of one another, distributed along the length of the catheter body.