Real-time vein positioning and displaying device and method

Abstract

The invention discloses a real-time vein positioning and displaying device. The real-time vein positioning and displaying device comprises a near-infrared LED light source, a red-light LED light source, a secondary lens, a dichroscope, a uniform illumination system, an image acquisition and processing system, a projection system and a control system. The image acquisition and processing system is composed of an infrared filter, an infrared detection CCD (charge coupled device) and an image processing portion, and the projection system is composed of a polarizer, a PBS (polarized beam splitter), an LCOS (liquid crystal on silicon), a 1 / 4 wave plate and a projection lens. The invention further discloses a real-time vein positioning and displaying method. Near-infrared light is irradiated in a detected skin area via the illumination system and the projection system, infrared light which is reflected via the skin and carries vein distribution information is acquired by the infrared detection CCD via the projection lens, images after being processed and strengthened are modulated via the LCOS, and visible red light is projected to the detected skin area, so that medical staff are helped to quickly position veins of a patient for assisting in venipuncture.

Description

technical field [0001] The invention relates to the field of optical medical assistance, in particular to a real-time vein location display device and method. Background technique [0002] In the process of clinical diagnosis and treatment, venipuncture is a common and very important medical operation, but the key to implementing this operation is to first find the blood vessels of the human body before puncturing the blood vessels for subsequent treatment. However, when the puncture targets are infants, obese patients, edema patients, and patients with dark skin diseases, it is difficult to achieve a successful one-time venipuncture because the blood vessels cannot be seen clearly. pain, and even cause unnecessary medical malpractice disputes. Therefore how to locate the venous blood vessel on the patient's body quickly and accurately just seems very important. [0003] In order to solve the problem that veins are difficult to find, some related researches have been done ...

AI Technical Summary

Problems solved by technology

[0007] All the above-mentioned devices are designed with off-axis optical system, resulting in the device structure is not compact, the utilization rate of optical components is low, the loss of light energy is large, the cost is high, and it is not easy to realize commercialization, and when the position of the device changes, it takes a certain time to project the distribution of venous vessels. Delay

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