Laser irradiation system for thermotherapy

Details Laser irradiation system for thermotherapy Laser irradiation system for thermotherapy

1990-04-05

1991-09-24

Grieb, William H.

Surgery

Truss

Pad

128398, 128399, 606 1, 606 10, 606 11, A61N 506, A61F 700

Patent

active

050505971

ABSTRACT:
Laser thermotherapy apparatus including a laser splitter which branches laser energy from a laser source to laser guides or optical fibers, each guide having an emitting end. First and second switches are positioned, respectively, before the splitter and in the individual laser guides. Temperature sensors are provided to sample the temperature of living tissue located adjacent each guide emitting end. A controller turns the respective switches on and off in response to the sensed temperature thereby to maintain a predetermined, selectable tissue temperature.

REFERENCES:
patent: 4397314 (1983-08-01), Vaguine
patent: 4580557 (1986-04-01), Hertzmann
patent: 4601037 (1986-07-01), McDonald
patent: 4719919 (1988-01-01), Marchosky et al.
patent: 4736743 (1988-04-01), Daikuzono
Brody, Herb, "Laser Light Kills Marked Tumors", High Technology, Nov. 1984, p. 76.
N. Daikuzono et al, "The Application of YAG Laser to Hyperthermia", Journal of Nihon Laser Igaku-kai, vol. 6, No. 3, (Jan. 1986), pp. 71-76.
Thomas J. Dougherty, "Photoradiation Therapy for the Treatment of Malignant Tumors", Cancer Research vol. 38, (Aug. 1978), pp. 2628-2635.
Shihro Mashiko et al, "Basic Study on Photochemical Effect of Pheophorbide A Irradiated by NO:YAG Laser Light", Journal of Nihon Laser Igaku-kai, vol. 6, No. 3 (Jan. 1986), pp. 113-116.
N. Daikuzono et al, "Endoscopic Local Hyperthermia with Nd-YAG Laser--Experimental Study and Development of Computed Thermo-System", Journal of Nihon Laser Igaku-kai, vol. 6, No. 3 (Jan. 1986), pp. 347-350.

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