FIELD: subcutaneous administration of medicinal preparations. SUBSTANCE: syringe comprises cylindrical cap which slides on outer surface of syringe 6 to close needle 1. Cap is retained above needle with help of lock which connects syringe to cap. Locks 15, 16 are maintained in its coupled storage condition with the help of sliding sleeve 7 which in normal condition surrounds lock so ad to hold it, but it may be displaced by hand to open lock, followed by displacing cap by hand to open needle. Spring 12 urges sleeve to occupy lock-opening position so that cap is automatically retained above needle. EFFECT: improved system for closure and opening of syringe. 11 cl, 10 dwg
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