PNEUMATICALLY CONTROLLED MEDICAL DEVICE FOR INJECTIONS, PNEUMATICALLY DRIVEN MEDICAL INJECTOR AND METHOD FOR MANUFACTURE OF PNEUMATIC CYLINDER Russian patent published in 1997 - IPC

FIELD: injection of high-viscosity liquids. SUBSTANCE: device has injector with medical syringe and pneumatic cylinder, which are provided with pistons and positioned in succession so that pistons may contact with each other. Syringe and cylinder are connected by end beads, which are fastened by readily detachable fastening members. Pneumatic cylinder casing is defined by end wall with union. Flexible resilient pipe extends from compressed gas source to union. Adjustable pressure reducer and foot-controlled flow rate valve are positioned in flexible pipe. Union is oriented axially of casing. Parts of injector are made from elastic deformation plastic. Method involves using similar disposable medical syringe as blank. EFFECT: increased efficiency and reduced production cost. 4 cl, 3 dwg