Method and apparatus for tissue ablation

Details Method and apparatus for tissue ablation Method and apparatus for tissue ablation

1997-03-12

2000-05-16

Dvorak, Linda C. M.

Surgery

Instruments

Electrical application

606 49, 607102, A61B 1818

Patent

active

060630787

ABSTRACT:
The present invention is a system for ablating tissue within a body, the system having: an energy source providing a level of energy which is non damaging to the cellular structures of the body tissue, a catheter coupled to the energy source, the catheter having an electrode; and means for sensing the temperature of the electrode while also sensing the amount of energy which is non damaging to the cellular structures of the body tissue is delivered to the electrode, the sensing means coupled to the catheter and coupled to the energy source wherein the degree to which the electrode contacts the heart tissue (e.g. no contact, moderate contact, good contact or excellent contact) may be determined.

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Radiofrequency Ablation of Cardiac Arrhythmias--Scientific American Science and Medicine--May/Jun. 1994, (L.S. Klein and W. M. Miles).
Thermistor Guided Radiofrequency Ablation of Atrial Insertion Sites in Patients with Accessory Pathways--PACE, vol. 18, Nov. 1995, pp. 2001-2007, (C.M. Tracy et al.).
The Biophysics of Radiofrequency Catheter Ablation in the Heart: The importance of Temperature Monitoring--PACE, vol. 16, Mar., Part II 1993, pp. 586-591 (D.E. Haines).

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