Check the disposable disinfectant expiration date of the disposable infusion set and whether the package has air leaks or other anomalies before the medical staffs using the atmospheric pressure take out the infusion set and put the infusion bottle of the cone joint part and the infusion bottle on the infusion rod and exhaust to the medicinal solution Flow to the lower end of the infusion tube, close the regulator, and then intravenous needle into the sterile veins, fixed, untied tourniquet, adjust the flow rate.

