Surgery – Body protecting or restraining devices for patients or infants – Restrainers and immobilizers
Patent
1986-02-27
1987-10-20
Cohen, Lee S.
Surgery
Body protecting or restraining devices for patients or infants
Restrainers and immobilizers
219 1055F, A61N 502
Patent
active
047007168
ABSTRACT:
A microwave collinear antenna array applicator for in situ or in vivo treatment of tumors and/or other materials by hyperthermia is disclosed. The array consists of a plurality of harmonically related resonant coaxial antenna elements connected electrically in series to provide uniform heating along the entire length of the array. At the distal end of the array, a resistor may be provided at the inner conductor for steering the heating pattern. At the proximal end of the array, an impedance matching dielectric structure is provided to enable maximum power transfer to the array and to minimize stray leakage currents along the outside of the coaxial transmission line. The array may be made longer or shorter without changing frequency and therefore depth of penetration by simply adding or subtracting half-wave resonant elements or sections of coaxial transmission line. A lossy sleeve member may be provided around the applicator to provide a localized source of heat.
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"16-Channel Fiberoptic Thermometry System with Multisensor Arrays for Thermal Mapping", Wickersheim et al., Luxtron Corp., Brochure distributed in 1986.
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Crooker Ronald H.
Kasevich Raymond S.
McQueeney James F.
Cohen Lee S.
Kasevich Associates, Inc.
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