multispectral fluorescence endoscopy

Abstract

The invention relates to a multispectral fluorescence endoscope, comprising a light source system, a light guide hose, a lens barrel and an image processing system; the lens barrel includes a light source interface, a light splitting device and an image sensor; the light source system includes a white light source, a fluorescent excitation light source, Power supply, controller, optical combiner and homogenized optical fiber; the fluorescence excitation light source includes any two or more of the first laser, the second laser, the third laser, the fourth laser and the fifth laser, white light source and fluorescence excitation After the light source is combined, it is transmitted through the uniform light fiber, and the uniform light fiber is connected to the light source interface on the lens barrel; there are several image beams and several light beams in the light guide hose, and the beam splitting device of the lens barrel is used to divide the received human body reflection into two parts. Signals of N bands, N image sensors receive signals of N bands in one-to-one correspondence, and the image sensors are used to transmit the received signals to the image processing system. The technical solution makes up for the defect of the prior art that only one type of contrast agent can be used in a matched manner.

Description

technical field [0001] The invention relates to the technical field of fluorescence endoscope, in particular to a multispectral fluorescence endoscope. Background technique [0002] Fluorescent laparoscopy in the prior art generally refers to ICG imaging equipment, which is only matched with ICG contrast agent, and its applicable spectral range is between 400nm and 1000nm, in which the 400nm-760nm band is visible light, and the 760nm-1000nm band is infrared light. It is used to provide real-time visible light images and near-infrared fluorescence images in minimally invasive surgery. By integrating the images formed by these two wavelength bands, it provides the surgeon with a clearer surgical field of view and improves the precision of the operation. [0003] There is following shortcoming in the fluorescent laparoscopy of prior art: [0004] (1) It is only suitable for one type of contrast agent, and other contrast agents cannot be selected according to actual needs, such...

AI Technical Summary

Problems solved by technology

[0004] (1) It is only applicable to one type of contrast agent, and other contrast agents cannot be selected according to actual needs, such as sodium fluorescein, 5-ALA, and methylene blue;

[0005] (2) It is basically impossible to adjust the white light color temperature according to the actual operation needs. The red tissue of the human body during the operation will make the color temperature in the operation space lower than the incident white light color temperature, resulting in a reddish image

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