FIELD: medical engineering. SUBSTANCE: device has cylindrical syringe tube closed on one end and open on the other one, plug member on the open end manufactured as piston, valve placed in the tube between the plug member and the closed tube end. The valve is closed in normal position. The plug member moving inside of the tube, the valve first opens and then travels to the closed tube end. EFFECT: improved operation properties as a part of safety syringe. 4 cl, 5 dwg
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Authors
Dates
2002-04-10—Published
1997-05-06—Filed