Save Ringer's / Ringer's solution

Ringer's solution for a safe of patients. We suggest the safe ringer that prevents wrong situations as bloods inside the body enter to aqueous solution. When you inject the ringer's solution to the body, bloods can often flow backward. The pull of gravity produces flowing backward when location of ringer is higher than injected location. If the nurse doesn't care these situations soon, the bloods can clot and left aqueous solution can't come to the body. To solve these problems, we suggest the idea about backdraft prevention of tube infused the aqueous solution.