Systems and methods for ablation of tissue
First Claim
1. A medical probe assembly for ablating tissue, comprising:
- an elongated shaft having a proximal end and a distal end;
a plurality of ablation electrodes carried by the elongated shaft, each of the electrodes comprising an electrode lumen;
a single delivery port configured for being in communication with a selected single one of the electrode lumens;
an occlusion element capable of being delivered through the selected electrode lumen; and
a handle member rotatably mounted to the proximal end of the shaft, wherein the delivery port is located within the handle member and the handle member is configured to rotate relative to the shaft in order to place the delivery port into communication with the selected electrode lumen.
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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.
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Citations
30 Claims
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1. A medical probe assembly for ablating tissue, comprising:
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an elongated shaft having a proximal end and a distal end; a plurality of ablation electrodes carried by the elongated shaft, each of the electrodes comprising an electrode lumen; a single delivery port configured for being in communication with a selected single one of the electrode lumens; an occlusion element capable of being delivered through the selected electrode lumen; and a handle member rotatably mounted to the proximal end of the shaft, wherein the delivery port is located within the handle member and the handle member is configured to rotate relative to the shaft in order to place the delivery port into communication with the selected electrode lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A tissue ablation system, comprising:
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a probe assembly comprising a plurality of ablation electrodes and a single delivery port, wherein each one of the electrodes comprises an electrode lumen, and the delivery port is configured for being in communication with a selected single one of the electrode lumens; an actuator configured to be in communication with the delivery port; an occlusion element capable of being delivered through the selected electrode lumen; and a handle member, wherein the delivery port is disposed within the handle member and the handle member is configured to rotate relative to the electrode lumens in order to place the delivery port into communication with the selected electrode lumen. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A medical probe assembly for ablating tissue, comprising:
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an elongated shaft having a proximal end and a distal end; a plurality of ablation electrodes carried by the elongated shaft, each of the electrodes comprising an electrode lumen; a single delivery port configured for being in communication with a selected single one of the electrode lumens; an occlusion element capable of being delivered through the selected electrode lumen; and an indexer disposed within a lumen of the shaft and configured for rotating relative to the shaft in order to place the delivery port into communication with the selected electrode lumen. - View Dependent Claims (28, 29, 30)
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Specification