Venipuncture auxiliary device

The utility model discloses a venipuncture auxiliary device which comprises an auxiliary table, a supporting seat, a fixing mechanism and a blood vessel developing device, the supporting seat is arranged on the auxiliary table and used for placing and supporting an arm, the fixing mechanism is arranged on the supporting seat and used for fixing the arm, and the blood vessel developing device is arranged on the supporting seat. The blood vessel developing device is arranged on the auxiliary table, corresponds to the supporting base and is used for irradiating the arm so as to develop blood vessels on the surface of the arm, and according to the technical scheme, it is avoided that puncture is affected due to the fact that the arm of a patient moves disorderly, the position of the blood vessels can be directly observed through the blood vessel developing device; the device and the method can assist medical staff in venipuncture, improve the accuracy of evaluating the blood vessels, reduce the puncture risk, imp