Patent ID: 6266552
Filing Date: 2001-07-24
Classification: A61B

Abstract:
A method for locating a catheter in a patient comprising the steps of:intracorporeally placing a movable catheter in a patient, said catheter being selected from the group consisting of measurement catheters and treatment catheters;simultaneously intracorporeally placing a fixed catheter in a patient in a vicinity of said catheter;intracorporeally transmitting electromagnetic signals between said fixed catheter and said movable catheter, with one of said fixed catheter and said catheter serving as a signal transmitter and the other of said fixed catheter said movable catheter and serving as a signal receiver, said signal receiver receiving received electromagnetic signals; andprocessing said received electromagnetic signals to identify an intracorporeal position of said movable catheter relative to an intracorporeal position of said fixed catheter.