Sensing needle for ablation therapy
First Claim
1. A method for providing feedback during tissue ablation, the method comprising:
- deploying a first needle and a second needle from a common catheter into a target tissue, wherein the first and second needles exit from one or more sides of the common catheter;
delivering energy via the first needle to ablate at least a portion of the target tissue; and
measuring a tissue property via the second needle.
1 Assignment
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Accused Products
Abstract
The disclosure describes a method and a system that may be used to provide feedback on the progress of ablation therapy. The system includes a first needle that penetrates a target tissue to deliver radio frequency energy, with or without a conductive fluid, that heats and ablates the target tissue and a second needle that penetrates the target tissue and detects a tissue property indicative of the ablation progress. Temperature, impedance, or another parameter may be the tissue property detected and measured by the system. In addition, more than one sensor may be positioned on the first or second needle. The system may provide real-time monitoring of the tissue property or use the tissue property measurement to automatically terminate the ablation therapy. In particular, the system may be used to treat benign prostatic hypertrophy.
207 Citations
46 Claims
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1. A method for providing feedback during tissue ablation, the method comprising:
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deploying a first needle and a second needle from a common catheter into a target tissue, wherein the first and second needles exit from one or more sides of the common catheter;
delivering energy via the first needle to ablate at least a portion of the target tissue; and
measuring a tissue property via the second needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system that provides feedback during tissue ablation, the system comprising:
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a generator that generates energy to ablate at least a portion of a target tissue;
a first needle that delivers the energy to the target tissue;
a second needle that detects a tissue property; and
a common catheter that houses at least a portion of each of the first needle and the second needle, wherein the first and second needles exit from one or more sides of the common catheter. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A device that provides feedback during tissue ablation, the device comprising:
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a first needle that delivers the energy to the target tissue;
a second needle that detects a tissue property; and
a common catheter that houses at least a portion of each of the first needle and the second needle, wherein the first needle exits a first opening in a side of the common catheter and the second needle exits a second opening of the side of the common catheter when the first and second needles are deployed. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46)
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Specification