Non-Thermal Ablation System for Treating BPH and Other Growths
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for non-thermal ablation of tissue are provided. A non-implantable minimally invasive system for treatment of tissue in a body via direct current ablation is provided including a catheter, a plurality of electrodes for deployment through the catheter, a power source for applying power to the electrodes, and a fixation element for maintaining the catheter in a treatment position during treatment of the tissue. A minimally invasive method for treating tissue in a body via direct current ablation is provided including inserting a catheter into the body such that a portion of the catheter remains outside of the body, deploying a fixation element to fix the catheter in a treatment position, deploying a plurality of electrodes through the catheter, applying power to the plurality of electrodes, using the electrodes to apply a current to the tissue, and removing the catheter from the body.
30 Citations
51 Claims
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1-27. -27. (canceled)
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28. A non-implantable minimally invasive system for treatment of prostate tissue via direct current ablation comprising:
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a transurethral catheter for insertion into the urinary tract, wherein a portion of the catheter remains outside of the body when the catheter is in a treatment position proximate the prostate; a plurality of electrodes positioned for deployment through and outwardly from the catheter, wherein an active area of at least one electrode delivers a charge to impart a high pH or a low pH such that a necrotic zone is created to form a field of treatment; a power source for receiving treatment parameters and applying the direct current and power to the plurality of electrodes based on the input parameters, wherein the direct current is applied at a magnitude of between approximately 10 and 50 mA per electrode and the power is applied at between approximately 20 and 3200 mW power per electrode, a fixation element operably coupled with the catheter for maintaining the catheter in the treatment position during treatment; wherein the ablation of tissue is substantially non-thermal. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 48, 49, 50)
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29. (canceled)
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44. (canceled)
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47. (canceled)
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51-54. -54. (canceled)
Specification