FIELD: medicine. SUBSTANCE: syringe containing liquid preparation for final sterilization has cylinder with control valve and movable plunger for equalizing pressure difference, additional filter operating in cooperation with the control valve to prevent entering viruses and bacteria back into the syringe, end-face cover closing the open end of the cylinder for maintaining sterility, and fastener of the cover to prevent pushing-out of the plunger. EFFECT: improved sterility of syringe. 10 cl
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Authors
Dates
1997-10-20—Published
1993-01-29—Filed