| abstract |
An ultrasonic transducer having a plurality of focusing zones is described. In one embodiment, there are ultrasonic transducers that are manufactured as a single piece but have more than one focusing zone. In a second embodiment, there is a transducer assembly that combines high and low frequency transducers. In the third embodiment, there is a replaceable assembly, thereby allowing different ultrasonic transducers to be used based on treatment needs. Variations of each embodiment are also disclosed. |