SYRINGE Russian patent published in 2006 - IPC A61M5/50 

FIELD: medical equipment.

SUBSTANCE: syringe can be used as single-time injection tool. Syringe has case, injection needle, piston and hollow rod. Piston of syringe at its non-operating side is made with catches in from of rectangular plates provided with external hooks at ends and internal hollows in the middle of parts of plates. Hollow rod is made with corresponding catches in form of rectangular plates with internal hooks and internal hollows in central parts of plates. Walls of hollows of piston's plates are made for bend outside plates to bend them to central axis. Hollow rod has flash at level of handle of syringe's case at external side of surface.

EFFECT: simplified design; non-ability of repeat usage.

2 dwg