| 摘要 |
A cancer daignosis and treatment device comprises a solid-state laser generator (30,40,60,63) such as an Nd-YAG laser, an alexandrite laser, or titanium sapphire laser for emitting a first laser beam having a first wavelength, a harmonic generator (31,41) for generating higher harmonic laser beams of the first laser beam and outputting one of the higher harmonic laser beams, and an optical parametric oscillator (32,42) for converting the higher harmonic laser beam output from the harmonic generator (31,41) into a second and third laser beams suitable for the cancer diagnosis and treatment. The second laser beam has a second wavelength which stimulates a sterilizing photochemical reaction between the photosensitive material and the cancer foci to perform the cancer treatment and the third laser beam has a third wavelength which induces fluorescence inherent to a photosensitive material to enable the cancer diagnosis. The apparatus also includes an endoscope (5) for guiding the second and third laser beams emitted from the laser beam source to the cancer foci and for transmitting an image of the fluorescence of the photosensitive material to the outside of a body, and a cancer observing unit having a screen (20) for receiving the image of the fluorescence of the photosensitive material transmitted through the endoscope unit and displaying the image on the screen to thereby perform the cancer diagnosis.
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