DISPOSABLE SYRINGE (ITS MODIFICATIONS) Russian patent published in 1994 - IPC

FIELD: medicine. SUBSTANCE: body 1 has piston 3 and 4, connected by a joint unit having blank recess 5 with swell 8, bulge 6 with swell 7, and ring 9 with fixing member 10 made as a whole with flexible member 11. Member 11 is mounted between swells 7 and 8, the gap between them is less than the thickness of member 11. Ring 9 with member 10 contacts the corresponding syringe surface for separation of the piston from the rod. EFFECT: high rate of syringe use for injections. 5 cl, 7 cl, 9 dwg