1) The Infusion is a wide range in the clinical treatment.In the infusion process, the large amount of liquid from the outside directly goes into the blood vessels through the infusion, because the liquid temperature is low, often leading to patients, cold extremities, or even numbness, pain, severe vascular spasm and other symptoms are occured, especially in the spring, autumn and winter,a stroke is obvious. The use of disposable infusion warmers can solve the general sense of not leaving the situation of patients owing to liquid cooling. This product has a constant heat output, easy operation, safe and reliable, non-toxic, odorless, sterile and without side effects. 2) The use of Product: Used for disposable infusion heating input stream.3) The main structure: Mainly by the heating material and high strength polyethylene shell.4) Performance and indicators:a) The heater will start to be hot after tearing about 10min.,and keep near 3 hours, the outer body’s temperature should not be below 50 °C.b) When an ambient temperature 5 °C 10 °C, infusion speed 2ml/min 4ml/min, the outflow temperature of the infusion solution should be not less than the 12 °C.c) When an ambient temperature 15 °C 20 °C, infusion speed 2ml/min 4ml/min, the outflow temperature of the infusion solution should be no higher than the 33 °C.d) The heater should have good strength,it won’t break from the free fall from 1.5m high.5) The usea)To tear vacuum packaging, so that to let the vents contact with air.b) To embed the infusion catheter in the spiral groove and turn the waist-shaped hole in up and down two roof-cover, so that the baffle keep off the infusion catheter , fixed to the cover of the heater through the shift.