Surgery – Body protecting or restraining devices for patients or infants – Restrainers and immobilizers
Patent
1986-06-25
1989-06-27
Cohen, Lee S.
Surgery
Body protecting or restraining devices for patients or infants
Restrainers and immobilizers
219 1055F, 219 10.55R, A61N 500
Patent
active
048419907
ABSTRACT:
The applicator of this invention functions as an antenna of electromagnetic waves when used in hyperthermia. The casing of this applicator serves as waveguide.
The applicator incorporates in its casing an electromagnetic lens. It is also provided with a cooling mechanism for cooling the body surface of the heated region at an opening of the casing. When electromagnetic waves which have been introduced from outside to the supply portion propagate in the human body from the opening of the casing, energy reflection is generated due to untuned impedance. In order to prevent this reflection, the applicator of this invention incorporates three stub tuners which can be adjusted from outside so as to reduce the loss of energy.
The casing of the applicator of this invention is filled with fluid such as machine oil which has a small damping factor so as to reduce the loss of electromagnetic waves in the casing which occurs during its propagation. The three stub tuners are waterproofed at their movable portion. Change in temperature is dealt with by providing a fluid accommodating means.
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Kikuchi Makoto
Mori Shinsaku
Nikawa Yoshio
Terakawa Takashige
Cohen Lee S.
Tokyo Keiki Co. Ltd.
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