Peripheral finger blood sampling auxiliary device

The utility model discloses a peripheral finger blood sampling auxiliary device. Platform body, a placement groove is formed in the left side of the interior of the platform body; a control rod is mounted on the lower end surface of the pressing plate; the inner wall of the supporting ring is of a slope structure. A containing groove is formed in the right side of the platform body. A first clamping ring and a second clamping ring are arranged in the accommodating groove; and the first clamping ring is installed at the right end of the connecting rod, the second clamping ring is fixed to the inner wall of the containing groove, the left end of the connecting rod is installed on the outer wall of a vertical cylinder, the vertical cylinder is rotatably installed in the platform body, a button is embedded in the upper end face of the platform body, and the button is fixed to the top end of the operating rod. According to the peripheral finger blood sampling auxiliary device, the capillarytube is reasonably store