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endoscopic device

A technology of endoscopes and filters, applied in the fields of endoscopy, medical science, and analysis using fluorescence emission, which can solve the problems of increased cost and reduced versatility

Active Publication Date: 2016-03-09
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, according to the structure of Japanese Patent Application Laid-Open No. 2011-143154, since the above-mentioned special color filter is used, the cost of manufacturing devices such as endoscopes increases, and light in other wavelength ranges other than fluorescence in the infrared region The subject of reduced versatility of observation

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Embodiment Construction

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0015] Figure 1 to Figure 5 Embodiments related to the present invention. figure 1 It is a figure showing the structure of the main part of the endoscope apparatus of the Example of this invention.

[0016] Such as figure 1 As shown, the endoscope device 1 has: a mirror body 2 configured to be inserted into a body cavity of a subject, and to capture images of subjects such as living tissues existing in the body cavity and acquire image data; a light source device 3, which is configured to supply the illumination light emitted toward the subject to the scope 2; the processor 4, which is configured to generate and output an image signal corresponding to the image data obtained by the scope 2; and a display device 5, It is configured to display an image corresponding to the video signal output from the processor 4 . Further, a light guide 6 configured to transmit ligh...

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Abstract

The endoscope device has: a light source unit that emits excitation light in a first wavelength band and reference light in a second wavelength band to a living tissue injected with a fluorescent substance; an excitation light cut filter unit that blocks the excitation light; a color filter unit that It has a first filter and a second filter, the first filter has a relatively high transmittance in the third band including the band of fluorescence emitted from fluorescent substances, and the second filter has a relatively high transmittance in the second band Relatively high; an imaging unit, which generates an image corresponding to the intensity of the returned light received when the excitation light and the reference light are emitted to the living tissue injected with the fluorescent substance at the same time; and an image processing unit, which respectively obtains the A first image in which a signal component due to receiving fluorescence is separated from each color component, and a second image in which a signal component due to receiving reference light is separated.

Description

technical field [0001] The present invention relates to an endoscope device, and more particularly, to an endoscope device capable of observing fluorescence emitted from a fluorescent substance in a living body. Background technique [0002] Conventionally, there has been known a technique for obtaining a fluorescent image as an image capable of visually distinguishing the presence or absence of a lesion in the observation target site by receiving returning light accompanying the irradiation of excitation light and reference light, and a technique for obtaining the mucous membrane image in which the observation target site can be visually recognized. A reference light image (reflected light image) of the constructed image, wherein the excitation light is light for generating fluorescence from a fluorescent substance such as a fluorescent probe injected into the living body in advance, and the reference light is The light reflected by the observation target part. [0003] Sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00A61B1/04
CPCA61B1/0638A61B1/00186A61B1/043A61B1/0646A61B1/000095A61B1/063A61B5/0071A61B5/0084A61B2576/00
Inventor 武井俊二
Owner OLYMPUS CORP