Surgery – Body protecting or restraining devices for patients or infants – Restrainers and immobilizers
Patent
1983-08-22
1986-05-20
Cohen, Lee S.
Surgery
Body protecting or restraining devices for patients or infants
Restrainers and immobilizers
219 1055F, A61N 502
Patent
active
045894248
ABSTRACT:
A direct contact microwave hyperthermia applicator includes a plurality of rectangular waveguide sections each having a radiating aperture. The waveguide sections are mounted with their long sides abutting. A pair of shutter elements for individually varying the radiating aperture is associated with each of the waveguide sections. The shutters can be adjusted to form a desired composite aperture which produces a radiation pattern adapted for efficient hyperthermia treatment of a tumor having a prescribed size, shape and location. Microwave power supplied to the radiating elements can be varied in phase and power level to further control the radiation pattern.
REFERENCES:
patent: 2388830 (1945-11-01), Cotton
patent: 3783221 (1974-01-01), Soulier
patent: 4108147 (1978-08-01), Kantor
patent: 4316474 (1982-02-01), Spethmann
patent: 4462412 (1984-07-01), Turner
A. Y. Cheung et al, "Direct Contact Applicators for Microwave Hyperthermia,", J. Microwave Power, 16(2), 1981, p. 151.
G. Kantor, "Evaluation and Survey of Microwave and Radiofrequency Applicators,", J. Microwave Power, 16(2), 1981, p. 135.
P. F. Turner, "Deep Heating of Cylindrical or Elliptical Tissue Masses," Third Int. Symposium: Cancer Therapy by Hyperthermia, Drugs, and Radiation, Fort Collins, Colorado, Jun. 22-26, 1980.
D. A. Christensen, "A New Non-Perturbing Temperature Probe Using Semiconductor Band Edge Shift," J. Bioengineering, vol. 1, pp. 541-545, 1977.
D. A. Christensen et al, "Hyperthermia Production for Cancer Therapy: A Review of Fundamentals and Methods," J. Microwave Power, 16(2), 1981, p. 89.
V. A. Vaguine et al, "Microwave Direct-Contact Applicator System for Hyperthermia Therapy Research," Third Int. Symposium: Cancer Therapy by Hyperthermia, Drugs, and Radiation, Ft. Collins, Colorado, Jun. 22-26, 1980.
Cohen Lee S.
Cole Stanley Z.
McClellan William R.
Varian Associates, Inc
Warsh Kenneth L.
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