Delivery of fluid during transurethral prostate treatment
First Claim
1. A method comprising:
- delivering an electrically conductive fluid containing an anesthetic agent to a prostate of a male patient; and
delivering ablation energy to the prostate.
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Accused Products
Abstract
In general, the invention provides a transurethral ablation device comprising a fluid delivery port for delivery of a fluid, such as a gel, liquid, or liquid suspension, to a tissue site targeted for ablation. The fluid is electrically conductive and carries a local anesthetic agent. When the fluid is delivered, it provides an anesthetic effect in the target tissue site, alleviating pain associated with the ablation procedure. In addition, the fluid is loaded with electrically conductive material to enhance conductivity and permit the creation of a virtual electrode. The virtual electrode extends throughout the volume of fluid delivered to the target tissue site, and enhances the volumetric coverage and precision of the ablation procedure with the prostate tissue.
133 Citations
24 Claims
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1. A method comprising:
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delivering an electrically conductive fluid containing an anesthetic agent to a prostate of a male patient; and
delivering ablation energy to the prostate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A transurethral ablation system comprising:
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a transurethral catheter;
an ablation needle extendable from the catheter to penetrate a prostate of a patient;
a fluid delivery conduit extending within the catheter;
an ablation energy generator to deliver ablation energy to the prostate via the ablation probe; and
a fluid delivery device to deliver fluid to the prostate via the fluid delivery conduit. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification