In the hospital, the horns of my calves were put into test operation injection stands - these are panels with needles mounted in the walls. The principle of operation as a car tank. The patient approaches the stand, applies a finger to the special panel for identification. on the board is lighted by a lamp.the patient drops the raytus and applies a hose to the hole over which the lamp has burned. There is an autoinjection. The stand is designed to save and eradicate nursing. Therefore, if you see patients knocking on the walls in the corridor, don’t be afraid. Everything goes according to plan.