Deep vein visualization device and deep vein visualization method based on nir-ii light single-pixel imaging

Abstract

The invention discloses a deep vein visualization device and a deep vein visualization method based on NIR-II light single-pixel imaging. The imaging device includes: a dual-wavelength light source, an illumination lens, a spatial light modulator, a projection lens, a light-collecting lens, a detector, a synchronous control and data acquisition module, and a processor; the spatial light modulator is arranged on the double-wavelength light source through the illumination lens The optical path of the output light; the projection lens is used to project the image to the vein to be measured; the detector is set at the back focus of the light collecting lens; the synchronous control and data acquisition module is used for synchronous control of the spatial light modulator and the detector and The electrical signal detected by the detector is collected; the processor is used to obtain the electrical signal collected by the data collection module, and calculate and process the deep vein image according to the single-pixel imaging algorithm, and the processor is also used to control the dual-wavelength light source to switch the light source to complete the deep vein image. visible. The invention can display the deep vein picture at the position of the vein to be measured.

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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