Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2006-03-21
2006-03-21
Shay, David M. (Department: 3739)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S473000, C600S476000, C600S477000, C600S431000, C604S020000, C606S003000, C606S012000, C607S089000
Reexamination Certificate
active
07016718
ABSTRACT:
In photodynamic diagnosis and photodynamic therapy, the oscillating wavelength of laser light from a light source is fitted to a plurality of different kinds of photosensitizers and exciting conditions thereof. Moreover, diagnosis and treatment are achieved using concurrent diagnosis during treatment is realized as well. A semiconductor laser generates laser light having an oscillating wavelength which is variable and a full width at half maximum which is narrow. A light transmission line guides an irradiated laser light to the vicinity of a focus, an image transmission line observes the focus and the periphery thereof, a fluorescence light extracting device extracts only the fluorescence light emitted from a photosensitizer excited by the irradiated laser light, an image-pick-up/analyzing device picks up and analyzes an image of the extracted fluorescence light and an image display device displays the analyzing result.
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Programs and Abstracts of Meeting of Japan Society for Laser Medicine, No. 14, issued Oct. 8-10, 1993 to Y. II et al. “Development of Semiconductor Laser Apparatus for PDT”.
Aizawa Katsuo
Ii Yoshiteru
Kaneda Akira
Kato Harubumi
Yamamoto Toshiyoshi
Matsushita Electric - Industrial Co., Ltd.
Shay David M.
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