Feedback systems and methods for renal denervation utilizing balloon catheter
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsYelena Nabutovsky, Edward Karst, Fujian Qu
Life of this patent
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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.
Claims20
A renal denervation system, comprising:
- an ablation catheter insertable into a renal artery to perform a renal denervation procedure;
- an inflation balloon 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.
A method of determining efficacy of a renal denervation procedure in a renal artery, comprising:
- providing a renal denervation catheter and a inflation balloon;
- filling the inflation balloon within the renal artery to stop blood flow and measuring one of a blood pressure condition in the renal artery and a performance characteristic of the inflation balloon to obtain a first measurement;
- performing a renal denervation procedure in the renal artery with the renal denervation catheter;
- filling the inflation balloon within the renal artery to stop blood flow and measuring the one of a blood pressure condition in the renal artery and a performance characteristic of the inflation balloon after performing the renal denervation procedure to obtain a second measurement;
- comparing the first and second measurements to determining efficacy of the renal denervation procedure.
A method of determining efficacy of a renal denervation procedure in a renal artery, comprising:
- providing a renal denervation catheter and a inflation balloon;
- measuring a first amount of time to fill the inflation balloon within the renal artery;
- 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 efficacy of the first renal denervation procedure.
A method of determining efficacy of a renal denervation procedure in a renal artery, comprising:
- providing a renal denervation catheter and a inflation balloon;
- inflating the inflation balloon to block blood flow through the renal artery and measuring a first rate of decay of blood pressure in 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, inflating the inflation balloon to block blood flow through the renal artery and measuring a second rate of decay of blood pressure in the renal artery;
- comparing the first and second rates of decay of blood pressure to determine efficacy of the first renal denervation procedure.
Dependencies are inferred from the claim text.