| US 7,465,300 B2 | ||
| Catheter with cryogenic and electrical heating ablation | ||
| Steven G. Arless, Beaconsfield (Canada); Fredric L. Milder, Brookline, Mass. (US); Marwan Abboud, Pierrefonds (Canada); Dan Wittenberger, Pierrefonds (Canada); and Sean Carroll, Beaconsfield (Canada) | ||
| Assigned to Cryocath Technologies Inc., Kirkland, Quebec (Canada) | ||
| Filed on Sep. 02, 2005, as Appl. No. 11/219,061. | ||
| Application 11/219061 is a continuation of application No. 09/457958, filed on Dec. 09, 1999, granted, now 7,097,641. | ||
| Prior Publication US 2006/0004351 A1, Jan. 05, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. A61B 18/02 (2006.01); A61B 18/04 (2006.01) | ||
| U.S. Cl. 606—21 [606/33] | 12 Claims |
| 1. A catheter for the treatment of tissue, said catheter comprising:
a catheter body;
a controller operative for selectively regulating cryogenic cooling energy with heat ablation energy; and,
a treatment tip positioned at a distal end of said catheter body, said treatment tip having:
a cooling segment operable at a temperature sufficient to freeze tissue, said cooling segment having a thermally conductive
wall for contacting and thermally treating tissue in contact with said thermally conductive wall; and
an electrically-driven ablation assembly, said electrically-driven ablation assembly operable to apply heating ablation energy
to said tissue,
wherein said cooling segment and said electrically-driven heating ablation assembly each effect tissue ablation,
wherein said electrically-driven ablation assembly and said cooling segment operate simultaneously to effect tissue ablation.
|