Title:
コンパクトな蛍光内視鏡映像システム
Document Type and Number:
Japanese Patent JP4133319
Kind Code:
B2
Abstract:
A fluorescence endoscopy video system (50) includes a multi-mode light source (52) that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through a fiber optic endoscope (60) to the tissue under observation. The system also includes a compact camera (100) for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors (102,104) by a fixed beamsplitter (106) in the camera. The fixed beamsplitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller (64) where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.
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Inventors:
Klein, Richard W.
Fengler, John Jay.
Bohem, Joachim W.
Fengler, John Jay.
Bohem, Joachim W.
Application Number:
JP2002513333A
Publication Date:
August 13, 2008
Filing Date:
July 13, 2001
Export Citation:
Assignee:
Novadak Technologies, Inc.
International Classes:
A61B1/00; G02B23/24; A61B1/04; A61B1/06; A61B5/00; H04N7/18; H04N9/04
Domestic Patent References:
| JP10500588A | ||||
| JP9327433A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama