Glasses type transmission venipuncture guidance instrument

The utility model discloses a glasses type transmission venipuncture guidance instrument which comprises an LED infrared transmitter, a micro-camera, a glasses type monitor and a lithium battery. The LED infrared transmitter is formed by connecting 8-12 semiconductor light emitting diodes with phi of 3mm in series and in parallel, and the output end of the micro-camera is connected with the input end of the glasses type monitor. The wave length of a near infrared ray emitted by each semiconductor light emitting diode of the LED infrared transmitter is 850-940nm. The LED infrared transmitter is arranged in a cylindrical transparent organic glass tube with a diameter of 18-22mm and a length of 70-90mm. An 800nm infrared color filter is arranged on the micro-camera. The 12V high-power lithium battery supplies power to the LED infrared transmitter, the micro-camera and the glasses type monitor. According to the principle, the specificity of deoxyhemoglobin in venous blood is used for absorbing a spectrum. The gla