Ultrasonic treatment and imaging of adipose tissue
View Patent ↗A system for the destruction of adipose tissue utilizing high intensity focused ultrasound (HIFU) within a patient's body. The system comprises a controller for data storage and the operation and control of a plurality of elements. One elements is a means for mapping a human body to establish three dimensional coordinate position data for existing adipose tissue. The controller is able to identify the plurality of adipose tissue locations on said human body and establish a protocol for the destruction of the adipose tissue. A HIFU transducer assembly having one or more piezoelectric element(s) is used along with at least one sensor wherein the sensor provides feed back information to the controller for the safe operation of the piezoelectric element(s). The sensor is electronically coupled to the controller, and the controller provides essential treatment command information to one or more piezoelectric element(s) based on positioning information obtained from the three dimensional coordinate position data.
1. A medical high intensity focused ultrasound system fro providing in vivo therapy to a volume of living tissue, the system comprising:
a high intensity focused ultrasound transducer having a plurality of transducer elements for treatment of a volume of living tissue;
a controller for driving said transducer with power, said controller having a receive path for detecting acoustic information from said volume of living tissue, the receive path comprising:
a first receive channel for detecting boiling, detection determined by analyzing incommensurate sub harmonic frequencies (xf/n) within said volume of tissue; and
a second receive channel for detecting cavitation, detection determined by analyzing sub harmonic frequencies (f/n) within said volume of living tissue;
wherein the power of the transducer is set in response to detecting boiling and/or cavitation.
2. The system of claim 1 , further comprising a third channel for detecting ultrasound reflection from one or more ultrasound pulses in which said third receive channel is calibrated to detect ensonification frequencies within said volume of living tissue.
3. The system of claim 1 , wherein the power of the transducer is reduced after the onset of cavitation or boiling to a level to maintain a desired level of cavitation or boiling to maximize the useful lifespan of said transducer.