Transducer cuff for the application and induction of high-intensity focused ultrasound for limb that has been cut to control the bleeding by cause

摘要

Treatment systems and diagnostic ultrasound to stop the bleeding from severed vessels or blood vessels were severely damaged in the amputation is described. Cuff 30 is attached to the base of the limb has been cut. The cuff, and a HIFU transducer 42, 44 and diagnostic transducer array 52, 54, 56. Investigate the organization of the limb that has been cut that, diagnostic transducer, look for Doppler flow signal. When the Doppler flow signal are detected, with the flow velocity, distance and coordinates of the sample volume flow is detected are determined. This information is provided to the controller of the HIFU therapy transducer. Sample volume flow center, ie the center of the vessel lumen, the controller controls the HIFU transducer to send ultrasonic waves are focused. To stop bleeding, ultrasonic waves are focused to the coagulating by heating the blood in the severed vessels. By heating and continuously track the same blood bolus, or by heating the vessel of significant length instead of a fixed spot in the blood vessel, the heat dissipation due to blood flow is reduced when the blood bolus flow.