Icteric sclera detector based on colorimetric analysis

Abstract

The invention relates to an icteric sclera detector based on colorimetric analysis. The detector comprises a camera, a central processing unit, an illumination system, a storage hard disc, a man-machine interaction system and a power supply, wherein the central processing unit is connected with the camera, the illumination system comprises an illumination lamp and a controller, the illumination lamp is connected with the controller, the controller is connected with the central processing unit, the illumination area of the illumination system at least overlaps with the collecting area of the camera, the storage hard disc is connected with the central processing unit through data, the man-machine interaction system comprises a display screen and a physical button, the display screen and the physical button are connected with the central processing unit, the power supply is connected with the central processing unit, and the field angle of the camera is larger than or equal to 90 degrees. By means of the detector, the non-contact quantitative measurement of icteric sclera is achieved, a doctor can easily and rapidly screen patients with icteric sclera symptoms, and meanwhile important reference can be provided for the doctor for further diagnosis and treatment.

Description

technical field [0001] The invention relates to a scleral yellow stain detection device, in particular to a sclera yellow stain detector based on chromaticity analysis. Background technique [0002] Jaundice is a common clinical symptom and sign, and its occurrence is caused by the increase of serum bilirubin concentration due to the disturbance of human bilirubin metabolism. Clinically, the sclera, mucous membranes, skin and other tissues are stained yellow. Because the sclera contains more elastin and has a strong affinity with bilirubin, yellow staining of the sclera in patients with jaundice is often noticed before the mucous membrane and skin. When the total serum bilirubin concentration is 17.1-34.2 μmol / L, but no jaundice is visible to the naked eye, it is called recessive jaundice or subclinical jaundice; when the serum total bilirubin concentration exceeds 34.2 μmol / L, it is clinically acceptable Jaundice is detected by the naked eye, also known as overt jaundice....

AI Technical Summary

Problems solved by technology

[0004] At present, domestic and foreign clinical examinations for sclera yellow staining mainly use biochemical detection methods such as the diazo method to detect bilirubin. This method requires blood collection, which has the disadvantages of invasiveness, high cost, and long time consumption.

Bilirubin detection equipment using non-invasive optical methods is mainly a transcutaneous bilirubin detector, but it can only be used for the initial screening of neonatal jaundice

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