Abstract: An electrostatic deep heating applicator deposits RF energy in a relatively uniform manor throughout a given cross-section of the human torso, thus resulting in a similar uniform heating of the region. The applicator uses a pair of identical, rectangular or cylindrical applicators which generate a heat-producing electric field predominantly parallel to the major axis of the body so as to minimize excessive surface heating. The applicator finds particular use in the treatment of deep seated cancers in patients. Its dimensions allow a relatively large circumferential air gap when placed around the torso so that it is convenient to use and is non-threatening to the patient.

Abstract: An electrode of the self-resonant, single-turn loop type adapted for attachment to a source of radio frequency energy to produce deep-heating by hyperthermia. The electrode is characterized by being a long cylindrical electrode having a small diameter to length radio as, for example, 0.5 to 1. The electrode is in the form of a cylinder having a gap along one side to which a plurality of capacitor plates are electrically connected radially outward and in parallel spaced relationship with a dielectric material disposed therebetween.

Abstract: A self-resonant single-turn electrode for use in the treatment of animal tissue with hyperthermia by coupling the electrode to a supply of radio frequency energy. The electrode comprises a plurality of planar annular disc members concentrically stacked with dielectric material therebetween. Each disc has a radial slit therethrough to form a gap. The discs are stacked with the gaps of adjacent discs 180.degree. apart. The radio frequency energy may be coupled to the entire stack by connecting to only one disc and the discs are all insulated from each other.

Abstract: The present invention discloses an improved electrode for use with apparatus employing radio frequency energy for deep heating of materials. In particular, it is adapted for the medical treatment of living animal tissue by hyperthermia. The electrode comprises a single loop turn having capacitance associated therewith so as to resonate the electrode for maximum power transfer thereto. The electrode causes a field to be generated within the annular region enclosed by the electrode comprising a plurality of concentric, substantially equally powered lines of force in which the living tissue to be treated is disposed. The electrode finds particular use in the treatment of deep seated cancers in patients.

Abstract: An electrode of the type used in the treatment of animal tissue by hyperthermia wherein a self-resonant single turn loop electrode creates a field of electromagnetic energy. The electrode comprises three plate members forming the sides and bottom of a box-like area in which the patient is positioned. The fourth electrode is vertically disposed above the patient and between the two side members being arcuate in shape on the edge adjacent the patient and normal to the other members. The two side members are disconnectable from the back member so that the back member can be positioned beneath a patient's mattress and the side members and arcuate member then placed over the patient in operable position when desired.

Abstract: The present invention discloses an improved electrode for use with apparatus employing radio frequency energy for deep heating of materials. In particular, it is adapted for the medical treatment of living animal tissue by hyperthermia. The electrode comprises a single loop turn having capacitance associated therewith so as to resonate the electrode for maximum power transfer thereto. The electrode causes a field to be generated within the annular region enclosed by the electrode comprising a plurality of concentric, substantially equally powered lines of force in which the living tissue to be treated is disposed. The electrode finds particular use in the treatment of deep seated cancers in patients.