SYSTEMS AND METHODS FOR ABLATION OF TISSUE
0 Assignments
0 Petitions
Accused Products
Abstract
A system for treating tissue includes a probe assembly having a cannula, a shaft, and one or more needle electrodes. The shaft has a distal end, a proximal end, and a lumen extending between the distal and proximal ends of the shaft, and is slidable within the lumen of the cannula. Each needle electrode has a lumen that may be placed in communication with a port at a proximal end of the probe assembly, and is configured to deliver an occlusive element to a site. The system may further include an embolization actuator for delivering the occlusive element. A method of treating tissue includes placing an electrode at a site of a treatment region, occluding at least a part of a vessel located adjacent the site by delivering an occlusion element from an electrode, and delivering ablation energy to the site while the vessel is at least partially occluded.
-
Citations
56 Claims
-
1-33. -33. (canceled)
-
34. A method for ablating tissue with a probe assembly comprising an elongated shaft having a plurality of ablation electrodes carried by a distal end of the elongated shaft, each of the electrodes having a lumen therein, the probe assembly further comprising a handle member rotatable relative to the elongated shaft and containing a delivery port configured to communicate with a selected one of the electrode lumens, the method comprising:
-
inserting a cannula having a lumen therein into a treatment region; advancing the elongated shaft distally within the lumen of the catheter such that one of the ablation electrodes penetrates a wall of a vessel adjacent or in the treatment region; rotating the handle member relative to the elongate shaft to fluidically align the delivery port with the lumen of the electrode penetrating the wall of the vessel; inserting an occlusion element into the vessel via the lumen of the electrode penetrating the wall of the vessel; and delivering radio frequency energy to the treatment region via at least some of the plurality of electrodes. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
-
-
45. A method for ablating tissue with a probe assembly comprising an elongated shaft having a lumen therein and a plurality of ablation electrodes carried by a distal end of the elongated shaft, each of the electrodes having a lumen therein that communicate with elongated shaft lumen, the probe assembly further comprising an index member disposed in the lumen of the elongated shaft and comprising a distal end, a proximal end, and a lumen extending there between, index member being rotatable relative to the elongated shaft to selectively position the index member lumen with one of the electrode lumens, the method comprising:
-
inserting a cannula having a lumen therein into a treatment region; advancing the elongated shaft distally within the lumen of the catheter such that one of the ablation electrodes penetrates a wall of a vessel adjacent or in the treatment region; rotating the index member relative to the elongate shaft to fluidically align the index member lumen with the lumen of the electrode penetrating the wall of the vessel; inserting an occlusion element into the vessel via the lumen of the electrode penetrating the wall of the vessel; and delivering radio frequency energy to the treatment region via at least some of the plurality of electrodes. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
-
-
56. A method for ablating tissue comprising:
-
inserting a cannula having a lumen therein into a treatment region; advancing a RF ablation probe having a plurality of electrodes carried thereby distally through the cannula so as to deploy a plurality of electrodes distally with respect to the cannula; penetrating a wall of a vessel adjacent or in the treatment region with one the plurality of electrodes, wherein said penetrating electrode comprises a lumen therein; rotating a handle of the RF ablation probe to selectively couple the electrode lumen to a delivery port contained within the handle; inserting an occlusion element into the vessel via the lumen of the penetrating electrode; and delivering radio frequency energy to the treatment region via at least some of the plurality of electrodes.
-
Specification