Surgery – Endoscope – Having imaging and illumination means
Patent
1996-02-27
1998-06-30
Leubecker, John P.
Surgery
Endoscope
Having imaging and illumination means
600113, 600181, 600478, A61B 104
Patent
active
057725802
ABSTRACT:
A biological fluorescence diagnostic apparatus having a device for irradiating a biological tissue with light which excites the tissue to generate fluorescent light, and a device for taking a fluorescence image of the biological tissue passing through an ocular optical system of an endoscope. The apparatus further has a television camera unit including a television camera for taking an ordinary endoscopic observation image passing through the ocular optical system, and a television camera with an image intensifier for taking a fluorescence observation image passing through the ocular optical system after amplifying the light intensity of the image. An optical path switching system which includes a reflective surface is selectively inserted and withdrawn from the optical path of light passing through the ocular optical system so as to selectively produce ordinary and fluorescence images in the television camera unit. A filter is selectively inserted into and movable out of an illuminating light path of the endoscope in response to detection of the position of the optical path switching system.
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Adachi Rensuke
Sano Hiroshi
Utsui Tetsuya
Asahi Kogaku Kogyo Kabushiki Kaisha
Leubecker John P.
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