[특허]Optical coupler for in vivo examination of biological tissue

[미국특허] Optical coupler for in vivo examination of biological tissue 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-006/00
출원번호	US-0860789 (1997-10-06)
발명자 / 주소	Chance Britton
출원인 / 주소	Non-Invasive Technology, Inc.
대리인 / 주소	Fish & Richardson P.C.
인용정보	피인용 횟수 : 83 인용 특허 : 33

초록 ▼

For in vivo examination using a spectrophotometer that generates optical radiation and characterizes biological tissue by detecting photons that have migrated in the tissue, an array of optical fibers that transmit radiation between the spectrophotometer and biological tissue, the fibers including distal ends freely protruding from a support in the manner of bristles from a hairbrush, forming an array of optical ports to couple photons to a contiguous tissue region or to collect photons from the tissue region, the optical fibers including proximal ends arranged to optically couple the radiation with the spectrophotometer. Also shown are: fibers sized and distributed to penetrate freely extending hair on the subject's head to make optical contact over an array of points with the scalp or skin; the array of fibers constructed as a handheld probe moved and placed against the head; optical matching material coupling between the fibers and the biological tissue region; and an irradiation array with the proximal fiber ends coupled to a light source, e.g. for brain tissue examination. Also shown are fibers as a detection array, e.g. for brain tissue examination or for imaging of the brain or for use in a magnet used for magnetic resonance imaging. The spectrophotometer is shown as a continuous wave spectrophotometer, phase modulation spectrophotometer, time resolved spectrophotometer and a phased array spectrophotometer.

대표청구항 ▼

[ I claim:] [20.] A method of in vivo examination of human tissue comprising:providing an array of optical fibers constructed and arranged to transmit optical radiation in a visible to infra-red range between a spectrophotometer and biological tissue, wherein said optical fibers of said array are freely protruding from at least one support in the manner of bristles from a hairbrush;generating radiation of said wavelength from a light source of said spectrophotometer,introducing said radiation from distal ends of said fibers into an input region of the biological tissue,collecting photons that have migrated from said input region to a detection region of the examined tissue,detecting said radiation that has migrated in the biological tissue, andexamining said tissue by processing signals of said detected radiation.

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[미국특허] Optical coupler for in vivo examination of biological tissue 원문보기

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[미국특허] Optical coupler for in vivo examination of biological tissue 원문보기

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