Device to be inserted into a conventional syringe, suitable for ensuring that the syringe is used only once.

摘要

Device comprising a cage with a grille, situated inside the syringe, between the plunger and the connection point of the needle, and a revolving blocking body, inserted in said cage, which in the initial position is located at the base of the cage and allows the liquid to be drawn into the syringe, and which in the subsequent liquid expulsion phase begins to revolve, moving upwards, until the syringe is completely emptied, after which, if an attempt is made to draw liquid in again, it rises until it hermetically closes said grille. IMAGE