Feedback systems and methods for renal denervation utilizing balloon catheter
First Claim
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1. A method of determining efficacy of a renal denervation procedure in a renal artery, comprising:
- providing a renal denervation catheter and an inflation balloon;
measuring a first amount of time to fill the inflation balloon within the renal artery;
deflating the inflation balloon;
performing a first renal denervation procedure in the renal artery with the renal denervation catheter;
after performing the renal denervation procedure, measuring a second amount of time to fill the inflation balloon within the renal artery;
comparing the first and second amounts of time to determine a change in the first and second amounts of time; and
determining that the efficacy of the first renal denervation procedure is sufficient when the change in the first and second amounts of time is within a predetermined range.
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Abstract
A renal denervation system includes an ablation catheter and an inflation balloon. The renal denervation catheter is insertable into a renal artery to perform a renal denervation procedure. The inflation balloon is inflatable within the renal artery, wherein one of a blood pressure condition in the renal artery resulting from operation of the inflation balloon and a performance characteristic of the inflation balloon indicates efficacy of the renal denervation procedure.
125 Citations
18 Claims
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1. A method of determining efficacy of a renal denervation procedure in a renal artery, comprising:
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providing a renal denervation catheter and an inflation balloon; measuring a first amount of time to fill the inflation balloon within the renal artery; deflating the inflation balloon; performing a first renal denervation procedure in the renal artery with the renal denervation catheter; after performing the renal denervation procedure, measuring a second amount of time to fill the inflation balloon within the renal artery; comparing the first and second amounts of time to determine a change in the first and second amounts of time; and determining that the efficacy of the first renal denervation procedure is sufficient when the change in the first and second amounts of time is within a predetermined range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A renal denervation system, comprising:
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an ablation catheter insertable into a renal artery to perform a renal denervation procedure including ablating a renal artery; an inflation balloon inflatable within the renal artery, wherein a performance characteristic of the inflation balloon indicates efficacy of the renal denervation procedure, wherein the performance characteristic of the inflation balloon includes an amount of time to fill the inflation balloon; and a balloon sensor within the inflation balloon, the balloon sensor configured to measure a first amount of time to fill the inflation balloon before ablating the renal artery and a second amount of time to fill the inflation balloon after ablating the renal artery to detect a change in the first and second amounts of time. - View Dependent Claims (12, 13, 14, 15)
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- 16. An inflation balloon configured to be inflated within a renal artery as part of a renal denervation procedure including ablating the renal artery, wherein a performance characteristic of the inflation balloon indicates efficacy of the renal denervation procedure, wherein the performance characteristic of the inflation balloon includes an amount of time to fill the inflation balloon, the inflation balloon comprising a balloon sensor, the balloon sensor configured to measure a first amount of time to fill the inflation balloon before ablating the renal artery and a second amount of time to fill the inflation balloon after ablating the renal artery to detect a change in the first and second amounts of time.
Specification