Deep vein visual device and deep vein visual method based on NIR-II light single-pixel imaging

Abstract

The invention discloses a deep vein visual device and a deep vein visual method based on NIR-II light single-pixel imaging. The imaging device comprises a dual-wavelength light source, an illuminationlens, a spatial light modulator, a projection lens, a light collection lens, a detector, a synchronous control and data acquisition module and a processor; the spatial light modulator is arranged ona light path of output light of the dual-wavelength light source, wherein the output light passes through the illumination lens so as to form the light path; the projection lens is used for projectingan image to a to-be-detected vein; the detector is arranged at the rear intercept of the light collecting lens; the synchronous control and data acquisition module is used for synchronously controlling the spatial light modulator and the detector and acquiring electric signals detected by the detector; and the processor is used for acquiring the electric signals acquired by the data acquisition module, performing calculation processing according to a single-pixel imaging algorithm to obtain a deep vein image, and the processor is also used for controlling the dual-wavelength light source to perform light source switching so as to complete deep vein visualization. The device can display a deep vein picture at a position of the vein to be detected.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a deep vein visualization device and deep vein visualization method based on NIR-II light single-pixel imaging. Background technique [0002] In modern medicine, intravenous injection therapy and blood collection and testing are very common. Intravenous injection is to directly inject medicine into the patient's blood, which can improve the recovery efficiency of patients and shorten the recovery time of patients. [0003] But before an IV can be administered, healthcare professionals need to perform a venipuncture on the patient. At present, most of the methods for identifying veins mainly rely on the naked eyes and experience of medical staff. However, in some groups of people, the veins are not obvious on the skin surface, which makes it difficult for medical staff to identify them. Increased patient suffering. According to statistical data, the first puncture failure rate o...

AI Technical Summary

Problems solved by technology

[0005] The current vein visualization device and vein visualization method, because the silicon material used by the CMOS image sensor mainly operates in the visible light and NIR-I regions, the penetration depth of light is proportional to the wavelength, and its penetration depth is shallow, so it is impossible to obtain deep Small blood vessel images, limited application scenarios

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