Surgery – Body protecting or restraining devices for patients or infants – Restrainers and immobilizers
Patent
1979-01-11
1981-06-09
Kamm, William E.
Surgery
Body protecting or restraining devices for patients or infants
Restrainers and immobilizers
178422, A61N 104
Patent
active
042718481
ABSTRACT:
Apparatus for electromagnetic radiation of living tissue, such as human tissue, or tissue simulating matter, comprises an electromagnetic radiation source having a dynamic frequency range of at least about 5 to 1, and preferably 10 to 1. Electrically connected to the source by a coaxial cable is a broadband applicator adapted for emitting electromagnetic radiation into tissue and the like. Parallel plate type radiation launching portions of the applicator are configured to have a characteristic impedance, throughout the dynamic frequency range, approximately equal to the impedance of specimens to be irradiated, which for human tissue, between 50 MHz-2000 MHz, is approximately 50 ohms. A transition for interconnecting the coaxial cable to the parallel plate launching portion is configured to provide a relatively gradual coaxial to parallel plate transition at constant characteristic impedance throughout the dynamic frequency range. Both air filled and dielectric filled transitions and air filled, whole body and dielectric filled, partial body applicators are described.
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Gandhi Om P.
Turner Paul F.
Bio Systems Design, Corp.
Fowler Allan R.
Kamm William E.
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