A red light vein enhanced display device and method

Abstract

The invention discloses a red-light vein enhancement display device and method. The device comprises a red light source, a scanning galvanometer and a drive circuit thereof, a focusing collimating lens, a detection module and a control module; the detection module comprises a converging lens, a red-light light filter and a red-light detector; the red light source, the drive circuit and the detection module are all connected with the control module. The method comprises the steps that the red light source emits light beams to irradiate target skin, and whether the vein exists in the irradiating position or not is judged by detecting a backscattering light signal; the control module modulates the red light intensity according to the signal to distinguish the vein and tissue, the light beams are driven by the scanning galvanometer to scan the whole target skin surface, and then vein distribution enhancement display is finally achieved; by controlling the output light intensity and pulse of monochromatic light and the sampling time of the detector, a control mode in a continuous light mode and a control mode in a pulsed light mode are given. Compared with the prior art, the device has the advantages that the structure is more compact and simpler on the premise that the enhancement display effect is kept.

Description

technical field [0001] The invention relates to a vein display device and method, in particular to a red light vein enhanced display device and method, belonging to the technical field of medical devices. Background technique [0002] In the process of clinical diagnosis and treatment, venipuncture is a common operation for medical staff, such as intravenous injection, blood drawing and blood test. At present, in the process of venipuncture, the positioning of venous blood vessels mainly depends on the observation and judgment of medical staff with naked eyes, and the positioning is inaccurate, especially when the puncture objects are infants, obese patients, and patients with dark skin, because the venous blood vessels are too thin or the blood vessels cannot be seen clearly. Cause puncture success rate to decline, increase patient's misery and doctor-patient dispute. Therefore, it is particularly important to provide a vein enhancement display device through optical means...

AI Technical Summary

Problems solved by technology

However, this technology uses a two-color light source, resulting in a complex optical structure and high cost

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