CARPULA Russian patent published in 2002 - IPC

FIELD: medicine, in particular, medical equipment, designed for local anesthesia. SUBSTANCE: the carpula has a transparent body with a silicone piston on one end and a silicone plug and a metal cap on the other end, separated by an elastic partition with a thin middle section into two chambers, the first chamber contains a solution of anesthetic without vasoconstrictor, and the other chamber - a solution of anesthetic with vasoconstrictor. The elastic partition is positioned in the carpula body so that the first chamber would contain a sufficient amount of solution for injection of 0.1 ml with due account made for the solution coming out at extrusion of air bubbles before injection. EFFECT: reduced traumatism of local anesthesia. 2 dwg