Devices, systems and methods for evaluation and feedback of neuromodulation treatment
First Claim
1. A method for evaluation and feedback of a neuromodulation treatment, the method comprising:
- placing a first energy delivery element carried by an intravascular catheter at a treatment site within a renal blood vessel of a human patient;
increasing energy delivery to the first energy delivery element, wherein energy delivery is increased to a pre-determined first power level over a first period of time, and wherein the first energy delivery element is positioned to deliver energy to target neural fibers proximate to a wall of the renal blood vessel;
maintaining energy delivery at the first power level for a second period of time;
increasing energy delivery to a second predetermined power level if the temperature value is less than a preset threshold temperature following the second period of time;
obtaining a set of treatment data corresponding to a completed treatment performed using the first energy delivery element;
evaluating the set of treatment data in view of one or more criteria to determine if a valuation of the completed treatment is within a pre-determined range; and
providing an indication as to whether the valuation of the completed treatment is within the pre-determined range.
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Abstract
The present disclosure relates to devices, systems and methods for evaluating the success of a treatment applied to tissue in a patient, such as a radio frequency ablative treatment used to neuromodulate nerves associated with the renal artery. A system monitors parameters or values generated during the course of a treatment. Feedback provided to an operator is based on the monitored values and relates to an assessment of the likelihood that a completed treatment was technically successful. In other embodiments, parameters or values generated during the course of an incomplete treatment (such as due to high temperature or high impedance conditions) may be evaluated to provide additional instructions or feedback to an operator.
417 Citations
18 Claims
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1. A method for evaluation and feedback of a neuromodulation treatment, the method comprising:
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placing a first energy delivery element carried by an intravascular catheter at a treatment site within a renal blood vessel of a human patient; increasing energy delivery to the first energy delivery element, wherein energy delivery is increased to a pre-determined first power level over a first period of time, and wherein the first energy delivery element is positioned to deliver energy to target neural fibers proximate to a wall of the renal blood vessel; maintaining energy delivery at the first power level for a second period of time; increasing energy delivery to a second predetermined power level if the temperature value is less than a preset threshold temperature following the second period of time; obtaining a set of treatment data corresponding to a completed treatment performed using the first energy delivery element; evaluating the set of treatment data in view of one or more criteria to determine if a valuation of the completed treatment is within a pre-determined range; and providing an indication as to whether the valuation of the completed treatment is within the pre-determined range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification