Patent ID: 8057409
Filing Date: 2011-11-15
Classification: A61B,A61N

Abstract:
1. An ultrasonic therapeutic device comprising an ultrasonic therapeutic applicator that includes an ultrasonic transducer, a box containing the ultrasonic therapeutic applicator and couplant liquid, and a moving unit for the ultrasonic therapeutic applicator that extends through a wall of the box and is connected to the ultrasonic therapeutic applicator and two compensating units, wherein said two compensating units are arranged at opposing sides of the box and are incorporated with the box; and wherein the moving unit extends through both of the compensating units and the ultrasonic therapeutic applicator is located between the compensating units; said compensating units being shaped to make the total volume change of the compensating units be zero when the moving unit drives the ultrasonic therapeutic applicator to move, so that the level of the couplant liquid in the box remains unchanged.