Field intensification in radio frequency thermotherapy

Details Field intensification in radio frequency thermotherapy Field intensification in radio frequency thermotherapy

1977-07-25

1979-05-15

Cohen, Lee S.

Surgery

Truss

Pad

128786, 128804, A61N 140

Patent

active

041542460

ABSTRACT:
A technique in the treatment of tumors in humans utilizing radio frequency electromagnetic radiation to produce necrosis of the tumors by which intensification at the situs of the tumor of a radio frequency field applied across the portion of the body containing the tumor is obtained by positioning a small inductance element preferably in the form of a closed resonant circuit such that the inductance is in or adjacent to the tumor tissue and thus functions to concentrate the field at that location. Alternatively, rather than utilizing a resonant circuit, the inductance can be coupled to the output of the radio frequency generator utilized and applies the radio frequency electromagnetic field.

REFERENCES:
patent: 2515683 (1950-07-01), Acosta
patent: 3230957 (1966-01-01), Seifert
patent: 3566877 (1971-03-01), Smith
patent: 3890953 (1975-06-01), Kraus et al.
patent: 3915151 (1975-10-01), Kraus
patent: 4028518 (1977-06-01), Boudouris et al.
patent: 4030480 (1977-06-01), Meyer
LeVeen et al., "Tumor Eradication . . . Therapy", JAMA, May 17, 1976, vol. 235, No. 20.

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