US 6,983,179 B2
Method for mapping a heart using catheters having ultrasonic position sensors
Shlomo Ben-Haim, Haifa (Israel)
Assigned to Biosense, Inc., New Brunswick, N.J. (US)
Filed on Feb. 14, 2001, as Appl. No. 9/783,150.
Application 08/311593 is a division of application No. 08/094539, filed on Jul. 20, 1993, granted, now 5,391,199.
Application 09/783150 is a continuation of application No. 09/111317, filed on Jul. 07, 1998, granted, now 6,285,898.
Application 09/111317 is a continuation in part of application No. 08/595365, filed on Feb. 01, 1996, granted, now 5,738,096.
Application 08/595365 is a continuation in part of application No. 08/311593, filed on Sep. 23, 1994, granted, now 5,546,951.
Claims priority of provisional application 60/009769, filed on Jan. 11, 1996.
Prior Publication US 2002/0045810 A1, Apr. 18, 2002
Int. Cl. A61B 5/05 (2006.01)
U.S. Cl. 600—374 28 Claims
OG exemplary drawing
 
1. A method for mapping a heart comprising the steps of:
inserting a mapping catheter, having a tip and an ultrasonic position sensor located at the tip, into the heart;
inserting at least one reference catheter having an ultrasonic position sensor into the heart;
placing the tip of the mapping catheter on a surface of the heart at a plurality of points in time of a cardiac cycle;
determining the position of the mapping catheter relative to the at least one reference catheter using the ultrasonic position sensors by making a geometric snapshot of the heart during each point in time of the cardiac cycle; and
mapping the surface of the heart with the mapping catheter and making a map comprised of each geometric snapshot.