A composite narrow-band imaging endoscopic imaging system

Abstract

The invention discloses a composite narrowband imaging endoscope imaging system, which comprises a narrowband imaging module used for micro imaging, wherein the narrowband imaging module consists of a white light source, a narrowband filtering disc, a third collimating lens, a wideband beam splitting flat plate, a dichroscope, a fourth collimating lens and a color image sensing device, the composite narrowband imaging endoscope imaging system is also provided with an optical coherence tomography module used for microscopic imaging, the optical coherence tomography module and the narrowband imaging module share the same optical path system, a control host respectively controls a color image sensing device of the narrowband imaging module and a balance detector of the optical coherence tomography module for carrying out data collection, through the processing on the collected data, two groups of mutually verified diagnosis images are output, and through combining the optical coherence tomography imaging and narrowband imaging, the microcosmic imaging and micro imaging functions are combined, so that the composite narrowband imaging endoscope imaging system belongs to a medical diagnosis tool with high sensitivity and specificity.

Description

technical field [0001] The invention relates to the field of medical imaging detection technology, in particular to an endoscope imaging system utilizing narrowband imaging. Background technique [0002] Narrow Band Imaging (NBI) is an emerging endoscopic technology. Traditional electronic endoscopic mirrors use broadband white light sources such as xenon lamps or tungsten-halogen lamps as illumination light. Filters allow visible light of all wavelengths to pass through. The narrow-band imaging endoscope adds a narrow-band filter after the white light source to filter the broadband white light, leaving only a limited number of narrow-band spectra with central wavelengths of 605nm, 540nm and 415nm, and transmits the narrow-band spectra to the target to be observed surface. The depth of penetration of narrowband light waves into the mucosa is different. The blue band (415nm) penetrates shallower, the red band (605nm) can penetrate deep into the submucosa, and is used to disp...

AI Technical Summary

Problems solved by technology

The reason is that narrow-band imaging can only observe the color changes of mucosal microvessels, and the final display is a two-dimensional image. At the same time, the image resolution of ordinary endoscopic imaging systems is only tens of microns, and it is impossible to accurately locate lesions at the level of early mucosal epithelial cells. , and it is impossible to analyze the lesion area in detail

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