Patent ID: 6383175
Filing Date: 2002-05-07
Classification: A61B,A61N

Abstract:
A diagnostic/treatment apparatus for diagnosing and treating a focus in which a photosensitizer having an affinity to the focus has been preliminarily accumulated, said apparatus comprising:a medical laser apparatus for irradiating the focus and including (a) a laser for irradiating laser light to the focus and having a variably controllable oscillating wavelength, wherein a full width at half maximum of the variably controllable oscillating wavelength is narrower than a width of an energy absorption band of the photosensitizer in which an energy absorption of the photosensitizer is at least 90% of a maximal energy absorption of the photosensitizer, and (b) a wavelength control means for controlling the oscillating wavelength of said laser to within the energy absorption band of the photosensitizer; a light transmission line for guiding the laser light irradiated from said laser of said medical laser apparatus to a vicinity of the focus; a image transmission line for guiding a fluorescence light emitted from the photosensitizer accumulated in the focus which has been excited by the laser light to observe the focus and a periphery thereof; a fluorescence light extracting means for extracting only the fluorescence light transmitted in said image transmission line; and an image-pick-up/analyzing means for picking up and analyzing an image of the fluorescence light obtained by the fluorescence light extracting means.