Patent ID: 7979139

Claim:
A radio frequency diathermy application device for treating a patient, comprising: a generator for generating radio frequency (rf) power; and a diathermy device, comprising: a flexible pad; and a flexible coil structure coupled to and supported by the flexible pad, including: a flexible spiral-like primary winding; and a flexible spiral-like secondary winding coupled to the primary winding, the primary and secondary windings each substantially lying in separate substantially parallel planes when the flexible pad is in an unflexed state, wherein: the flexible pad includes first and second flexible pads, the flexible spiral-like primary winding embedded within the first flexible pad, and the flexible spiral-like secondary winding embedded within the second flexible pad; and the flexible coil structure includes an insulating spacer disposed between the first and second flexible pads separating the flexible spiral-like primary winding and the flexible spiral-like secondary winding, wherein the insulating spacer and the first and second flexible pads are formed of different materials.