Marrow puncture needle

The utility model discloses a bone marrow puncturing needle, including a needle tube, a needle tune shell, a nut and a needle head; the device still includes a needle core arranged in the inner cavity of the needle tube and the needle head; the oblique surface at the sharp end of the needle core corresponds to the oblique surface at the sharp end of the needle head. The diameter phi of the inner hole of the needle head is 0.1 to 0.4 mm; the outer diameter phi of the needle head is 0.5 to 0.8 mm. The needle head of the utility model is thin and sharp; the puncturing can be done without anesthesia; the trauma and pains are little; the success rate reaches to 100 percent; the utility model can be widely used in the treatment of the medical puncture and the absorbing of a small quantity of body liquid.