Patent ID: 9095320
Filing Date: 2015-08-04
Classification: A61B

Abstract:
1. A method for renal nerve modulation comprising the steps of: navigating a distal cryoenergy delivery section of a cryoablation catheter through the vasculature and into the renal artery to a first location in proximity of the renal nerve; and ablating the renal nerve by applying cryoenergy from said distal cryoenergy delivery section of the cryoablation catheter to decrease the temperature of the renal artery to a first temperature such that nerve function is impaired, wherein the first temperature is less than or equal to −20 ° C., and wherein the applying cryoenergy from the distal cryoenergy delivery section comprises pumping a liquid cryogen along a flowpath to and from the distal region of the catheter and maintaining the cryogen in a liquid-only state without changing to a gaseous phase.