Devices and methods for shaping therapy in fluid enhanced ablation
First Claim
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1. An ablation device, comprising:
- an elongate body havingproximal and distal ends,an inner lumen extending through the elongate body,at least two outlet ports formed in the elongate body and configured to deliver fluid to tissue surrounding the elongate body, andat least one ablation element disposed along a distal portion of the elongate body, the ablation element being configured to heat tissue surrounding the ablation element when the elongate body is inserted into tissue;
wherein the at least two outlet ports are configured to deliver fluid at different temperatures.
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Abstract
Devices and methods for shaping an ablation treatment volume formed in fluid enhanced ablation therapy are provided. The devices and methods disclosed herein utilize the interaction of fluids to create ablation treatment volumes having a variety of shapes. In one embodiment, a method for forming an ablation treatment volume having a desired shape includes delivering therapeutic energy to tissue to form an ablation treatment volume and simultaneously delivering a first fluid and a second fluid to the tissue. The first and second fluids can convect the therapeutic energy in a desired direction such that the ablation treatment volume has a desired shape.
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Citations
9 Claims
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1. An ablation device, comprising:
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an elongate body having proximal and distal ends, an inner lumen extending through the elongate body, at least two outlet ports formed in the elongate body and configured to deliver fluid to tissue surrounding the elongate body, and at least one ablation element disposed along a distal portion of the elongate body, the ablation element being configured to heat tissue surrounding the ablation element when the elongate body is inserted into tissue; wherein the at least two outlet ports are configured to deliver fluid at different temperatures. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An ablation device comprising:
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an elongate member having a distal end configured for introduction into a patient'"'"'s body; at least two elongate bodies disposed on the distal end of the elongate member; wherein each of the elongate bodies includes proximal and distal ends, an inner lumen extending therethrough, and at least one outlet port formed in the elongate body and configured to deliver fluid to tissue surrounding the elongate body; wherein at least one of the at least two elongate bodies includes at least one ablation element disposed along a distal portion of the elongate body, the ablation element being configured to heat tissue surrounding the ablation element; and wherein at least one of the at least two elongate bodies includes a heater element disposed within the inner lumen of the elongate body, the heater element being configured to heat fluid flowing through the inner lumen. - View Dependent Claims (9)
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Specification