DISPOSABLE SYRINGE Russian patent published in 1995 - IPC

FIELD: devices for injection of drugs for single use. SUBSTANCE: disposable syringe has body in form of bellows whose one end has hollow inlet for attachment of injection needle, and its other end has inner projection and safety device in form of bushing and ring installed in inlet in a spaced relation to each other. Bushing is made with axial hole whose diameter is larger than that of outer diameter of ring and installed for motion towards ring and has recesses to receive ring projections. EFFECT: prevented damage to bellow in aspiration and simplified injection of drugs. 4 cl, 3 dwg