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Abstract

A method and apparatus for therapeutic deep heating of musculoskeletal tissues are characterized by an improved transducer that serves simultaneously to couple the power from the generator into the patient and to sense the therapeutic response for treatment control including a method of manufacture and testing of contact applicators for dielectric heating of musculoskeletal tissue. The applicator is comprised of a rectangular wave guide in which the location of the dielectric material is adjusted to reduce the measured value of the guide wave length to the free-space value at the frequency of operation. In addition, the invention comprises a method and apparatus for the noninvasive detection of therapeutic response in tissue to dielectric heating. This response is then used to control the treatment. Both heating and sensing are accomplished by one transducer and one apparatus if dielectric heating is employed. If other forms of heating are used, such as ultrasound, the sensor is still used but the apparatus must be modified, the modifications including replacement of the high power electromagnetic source with a low power source version.

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First Claim