Patent ID: 9060670
Filing Date: 2015-06-23
Classification: A61B,A61N

Abstract:
1. A system for thermal treatment or ablation of tissue comprising: an ultrasonic thermal ablation probe having one or more ultrasonic transducers; a power generator to drive the ultrasonic thermal ablation probe; an ultrasonic 3-d imaging probe configured to capture at least one image from radio frequency image data obtained before the radio frequency image data is processed; a control system for multi-axis control imaging probe position; an ultrasonic feedback mechanism configured to measure ultrasound echo strain to estimate heat-induced structural changes of an area surrounding the ultrasonic thermal ablation probe, from the at least one image, wherein control variables of the control system include at least a temperature profile and an actual thermal dose profile of a particular location, the temperature profile generated based on the heat-induced structural changes estimated by the ultrasonic feedback mechanism, which control variables are indicative of a level of tissue ablation, and wherein the control system receives the estimated heat-induced structural changes from the ultrasonic feedback mechanism and adjusts power levels of the one or more ultrasonic transducers of the ultrasonic thermal ablation probe based on the estimated heat-induced structural changes.