SYRINGE Russian patent published in 2003 - IPC

FIELD: medical equipment, in particular, disposable injection devices. SUBSTANCE: syringe has casing equipped with receiving openings arranged on outer side of handle, piston inserted into casing and provided with cylindrical tip positioned at its inoperating part, and needle. Cylindrical tip has annular slot of rectangular section. Hollow rod has two annular projections positioned at its end and two retaining projections positioned at inner side of handle. Such construction allows syringe members to be prevented from probable blocking in case of incompetent handling. EFFECT: increased efficiency and simplified construction. 1 dwg