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Guiding exposure type fluorescent endoscope system and guiding exposure method

An exposure method and endoscope technology, which are applied in the fields of endoscopy, medical science, diagnosis, etc., can solve the problems of fluorescent signal flickering, unable to meet the requirements of use, etc., and achieve the effect of ensuring the output effect.

Pending Publication Date: 2019-05-17
GUANGDONG OPTO MEDIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a guided exposure type fluorescent endoscope system and a guided exposure method, aiming to solve the problem that the fluorescent signal output by the existing endoscope system flickers with the change of the working distance and cannot meet the use requirements

Method used

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  • Guiding exposure type fluorescent endoscope system and guiding exposure method
  • Guiding exposure type fluorescent endoscope system and guiding exposure method
  • Guiding exposure type fluorescent endoscope system and guiding exposure method

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Embodiment 1

[0043] Because the distance between the front end of the endoscope 4 and the observed tissue is different, the illumination area will be different, so that the optical power per unit area will also change accordingly, resulting in the difference in the intensity of the guiding light imaged on the fluorescence camera 7, so that the fluorescence camera controls Module 8 calculates different exposure parameters; when the distance is short, the optical power per unit area is large, and the exposure parameter calculated by the fluorescent camera control module 8 is small; while when the distance is long, the optical power per unit area is small, and the fluorescent camera control module 8 calculates small exposure parameters; The exposure parameter calculated by module 8 is large, so that the brightness value of the fluorescence image remains relatively consistent.

[0044] like image 3 As shown, the stroboscopic control device 9 obtains the frame synchronization signal of the flu...

Embodiment 2

[0048] Because the distance between the front end of the endoscope 4 and the observed tissue is different, the illumination area will be different, so that the optical power per unit area will also change accordingly, resulting in the difference in the intensity of the guiding light imaged on the fluorescence camera 7, so that the fluorescence camera controls Module 8 calculates different exposure parameters; when the distance is short, the optical power per unit area is large, and the exposure parameter calculated by the fluorescent camera control module 8 is small; while when the distance is long, the optical power per unit area is small, and the fluorescent camera control module 8 calculates small exposure parameters; The exposure parameter calculated by module 8 is large, so that the brightness value of the output fluorescence image remains consistent.

[0049] like Figure 4 As shown, the stroboscopic control device 9 obtains the frame synchronization signal of the fluore...

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Abstract

The invention discloses a guiding exposure type fluorescent endoscope system and a guiding exposure method. The exposure of a fluorescent camera is controlled by guiding light, so that the gray of anoutput fluorescent image is kept consistent at different imaging distances between an endoscope and an observed tissue; and a guiding light source is controlled to be stroboscopic by a stroboscopic control device, so that the guiding light source only plays an exposure guiding role, does not appear in a fluorescence imaging field of view, and ensures an output effect of the fluorescent image.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to a guiding exposure type fluorescence endoscope system and a guiding exposure method. Background technique [0002] Near-infrared fluorescent contrast agents are widely used in endoscopic imaging equipment for intraoperative lymphatic labeling, tumor boundary demarcation, angiography and cholangiography, etc. However, in order to improve the signal-to-noise ratio and signal-to-background ratio of the fluorescence image, the fluorescence camera can only or mainly receive the fluorescence signal collected by the endoscope, and adjust the exposure parameters according to the current fluorescence intensity, resulting in the observation of the imaging object with weak fluorescence close to the tissue When the camera exposure parameters are automatically adjusted up, the gray value of the fluorescence image increases; while when the tissue is observed far away, the excitation light irradi...

Claims

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Application Information

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IPC IPC(8): A61B1/04A61B1/045
CPCY02B20/40
Inventor 顾兆泰鲁昌涛李娜娜张浠安昕
Owner GUANGDONG OPTO MEDIC TECH CO LTD
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