Patent ID: 9028470
Filing Date: 2015-05-12
Classification: A61B,A61N

Abstract:
1. A method of treating hypertension in a mammal, comprising: by focused sound energy, heating at least one nerve at a surface of a renal artery in a mammal; during the heating and by magnetic resonance imaging, repeatedly determining thermal levels in each of a first volumetric zone and a second volumetric zone within a target region that includes at least a portion of the surface and is subject to the heating; after determining that an indicium of a thermal level in the first zone exceeds a first threshold, and upon determining that an indicium of a thermal level in the second zone exceeds a second threshold, different from the first threshold, ceasing the heating of the at least one nerve for at least one day; and as a result of the heating, lowering a blood pressure in the mammal.