Methods of automatically regulating operation of ablation members based on determined temperatures
First Claim
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1. A method of determining a temperature and facilitating ablation of tissue of a subject, comprising:
- positioning a catheter of an ablation system at a target anatomical location of a subject;
wherein an integrated catheter tip is positioned along a distal end of the catheter, the integrated catheter tip comprising a radiofrequency electrode, a radiometer and a temperature-measurement device,wherein the ablation system further comprises a generator for providing energy to the radiofrequency electrode; and
wherein the ablation system further comprises a non-transitory computer-readable medium and a processor;
determining a temperature of a tissue of the subject at a depth relative to a surface of the tissue based on, at least in part, a signal generated by the radiometer, a signal generated by the temperature-measurement device and operation parameters for the radiometer and the temperature-measurement device stored on the computer-readable medium;
delivering radiofrequency energy to the tissue of the subject by activating the generator to provide power to the radiofrequency electrode; and
automatically regulating operation of the radiofrequency electrode based, at least in part, on the determined temperature.
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Abstract
Methods and systems for treating tissue that employ a radiometer for temperature measurements and use feedback from the radiometer to regulate energy being applied to the tissue are provided. For example, methods and systems are provided for calculating temperature based on signal(s) from a radiometer, which may provide useful information about tissue temperature at depth, and automatically regulating energy applied to the tissue based on the tissue temperature.
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Citations
20 Claims
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1. A method of determining a temperature and facilitating ablation of tissue of a subject, comprising:
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positioning a catheter of an ablation system at a target anatomical location of a subject; wherein an integrated catheter tip is positioned along a distal end of the catheter, the integrated catheter tip comprising a radiofrequency electrode, a radiometer and a temperature-measurement device, wherein the ablation system further comprises a generator for providing energy to the radiofrequency electrode; and wherein the ablation system further comprises a non-transitory computer-readable medium and a processor; determining a temperature of a tissue of the subject at a depth relative to a surface of the tissue based on, at least in part, a signal generated by the radiometer, a signal generated by the temperature-measurement device and operation parameters for the radiometer and the temperature-measurement device stored on the computer-readable medium; delivering radiofrequency energy to the tissue of the subject by activating the generator to provide power to the radiofrequency electrode; and automatically regulating operation of the radiofrequency electrode based, at least in part, on the determined temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of determining a temperature and facilitating ablation of tissue of a subject, comprising:
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determining a temperature of a tissue of a subject at a depth relative to a surface of the tissue based on, at least in part, a signal generated by a radiometer and a signal generated by a temperature-measurement device, the radiometer and the temperature-measurement device being positioned at a tip of a catheter; causing energy to be delivered to the tissue of the subject by activating an ablation member positioned at the tip of the catheter; and automatically regulating operation of the ablation member based, at least in part, on the determined temperature. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method of determining a temperature and facilitating ablation of tissue of a subject, comprising:
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determining a temperature of a tissue of a subject at a depth relative to a surface of the tissue based on, at least in part, a signal generated by a radiometer and a signal generated by a temperature-measurement device configured to detect a temperature along a portion of a catheter; causing energy to be delivered to the tissue of the subject by activating an ablation member positioned along the catheter; and automatically regulating operation of the ablation member based, at least in part, on the determined temperature. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification