Surgery – Magnetic field applied to body for therapy – Electromagnetic coil
Patent
1987-04-10
1991-10-01
Cohen, Lee S.
Surgery
Magnetic field applied to body for therapy
Electromagnetic coil
128419F, 219 1079, A61N 140
Patent
active
050529978
ABSTRACT:
A short but large apertured coil of the sloped-helix type allows deep heating of a part of the human body by RF waves, for example with a three-turn coil having a central part wherein parts of a pair of turns are parallel. The length of the coil equals two wavelengths of the RF wave. Each loop or turn is widened with for instance a conducting ribbon, having specific twists to provide corresponding vertical and horizontal parts if the coil is considered to have its axis aligned vertically.
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"Development of Family of RF Helical Coil Applicators which Product Transversely Uniform Axially Distributed Heating in Cylindrical Fat-Muscle Phantoms", Ruggera and Gideon Kantor, IEEE Transactions on Biomedical Engineering, vol. BME-31, No. 1, Jan. 1984.
Cohen Lee S.
Tarcza John E.
The United States of America as represented by the Secretary of
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