Apparatus for treatment of cancer with photodiode

Details Apparatus for treatment of cancer with photodiode Apparatus for treatment of cancer with photodiode

1987-09-08

1989-04-18

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Infrared, visible light, ultraviolet, x-ray or electrical...

1283031, A61F 238, A61B 1736

Patent

active

048223352

ABSTRACT:
Apparatus for the treatment of a cancerous lesion part by irradiating a light energy from a light source to the cancerous lesion part having absorbed and accumulated in advance therein a photosensitive substance with an affinity for tumors, in which said light source comprises a first photodiode adapted to excite the photosensitive substance from the ground state thereof to a singlet state of higher energy level and a second photodiode adapted to exite an energy level of the photosensitive substance which has transited from the singlet state to a triplet state to a still higher energy level.

REFERENCES:
patent: 4402318 (1983-09-01), Swartz
patent: 4556057 (1985-12-01), Hiruma et al.
patent: 4612007 (1986-09-01), Edelson
patent: 4622952 (1986-11-01), Gordon
patent: 4622953 (1986-11-01), Gordon

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