A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 8/12 (2006.01)
Patent
CA 2554304
A method for treating atrial fibrillation in a heart of a patient includes placing an ultrasonic catheter in a first chamber of the heart; acquiring two-dimensional ultrasonic images of a second chamber of the heart and at least a portion of surrounding structures of the second chamber using the ultrasonic catheter placed in the first chamber; reconstructing a three-dimensional ultrasonic image based on the two- dimensional ultrasonic images; displaying the reconstructed three-dimensional ultrasonic image; identifying at least one key landmark on the reconstructed three-dimensional ultrasonic image; marking the least one key landmark on the reconstructed three- dimensional ultrasonic image; penetrating the septum for accessing the second chamber of the heart while using the marked at least one key landmark for guidance; positioning a sheath through the penetrated septum and within the second chamber of the heart; inserting an ablation catheter through the sheath and into the second chamber of the heart; and ablating a portion of the second chamber of the heart using the ablation catheter while under observation with the ultrasound catheter located in the first chamber of the heart.
Biosense Webster Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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