FIELD: medical equipment, in particular, safe disposable syringe.
SUBSTANCE: disposable syringe has cylinder, adapter tube, insertion pipe, and piston. Both ends of cylinder are open. Adapter tube is inserted at one cylinder side to provide sealing contact of adapter tube with inner periphery of cylinder. Piston is inserted into cylinder. Adapter tube has small-diameter member and large-diameter member having inner diameter exceeding that of small-diameter member. Insertion pipe has first contact member brought into sealing contacting with inner periphery of large-diameter member of adapter tube, and insertion member inserted into small-diameter member.
EFFECT: enhanced safety of disposable syringe due to reduced probability for occurrence of manufacturing imperfections, reduced production costs and increased efficiency.
16 cl, 12 dwg
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