TUBE SYRINGE Russian patent published in 2003 - IPC

FIELD: medical engineering. SUBSTANCE: device has movable piston, piston chamber or canal, sealed chambers communicating via sluice liquid transfer mechanism represented by openings also in movable parts of the device, supporting member and partition members 8 separating chamber lumens. One of movable partition members has opening to allow sealed connection to the supporting member having areas of different cross-section shape making boundary to sealed section in piston chamber containing medicinal preparation. Syringe piston is designed as sealed reservoir containing liquid. EFFECT: prevented mixing of liquid drug components when being stored for a long time. 2 cl, 6 dwg