Scrap-free self-closing medical plastic combination plug

Abstract

The invention discloses a scrap-free self-closing medical plastic combination plug, and relates to the technical field of pharmaceutical packaging. The combination plug comprises an upper plug and a lower plug. The upper plug is made of butyl rubber or a plastic elastic body, a strip-shaped opening is arranged in the middle of the upper plug, and an embedded annular protrusion is arranged on one surface of the upper plug. The lower plug is made of polypropylene or polyethylene plastics, an embedding groove is arranged on the upper portion of the lower plug, a hollow fixed plug is wrapped on the inner side of the lower plug, a movable plug penetrates through the middle of the fixed plug, an upper sealing head is arranged at the upper end of the movable plug, a lower sealing head is arranged at the lower end of the movable plug, and an inverted-T-shaped liquid medicine flow channel is arranged inside the movable plug. The embedded annular protrusion of the upper plug is embedded into the embedding groove of the upper portion of the lower plug, so that the upper plug and the lower plug are combined with each other to form the complete plastic combination plug, the lower plug is plugged into a bottle opening, and the upper plug realizes a sealing effect for the outside of the bottle opening. An upper port of the liquid medicine flow channel is manufactured into a Luer conical connector matched with a syringe nozzle. The scrap-free self-closing medical plastic combination plug has the advantages that the scrap-free self-closing medical plastic combination plug is reasonable in structural design; the syringe nozzle is inserted into the scrap-free self-closing medical plastic combination plug from the strip-shaped opening reserved on the upper rubber plug, and the strip-shaped opening can be automatically expanded without destroying the integrity of the upper rubber plug, so that scraps cannot be generated; and the syringe nozzle can be opened after being inserted into the strip-shaped opening and can be closed after being pulled out of the strip-shaped opening, and accordingly the scrap-free self-closing medical plastic combination plug is simple in operation and convenient to use.

Description

Technical field: [0001] The invention relates to the technical field of medical packaging, in particular to a non-falling self-closing medicinal plastic combination plug. Background technique: [0002] At present, there are two main types of rubber stoppers for medical glass bottles (including antibiotic bottles and infusion bottles), namely butyl rubber stoppers and coated butyl rubber stoppers. Wherein, the butyl rubber stopper will produce a small amount of rubber crumbs when the needle is inserted to inject the drug solution, and the crumbs may fall into the drug solution with the needle, and the drug solution will bring foreign matter into the drug solution, causing harm to the human body. In addition, when the butyl rubber stopper is used in the packaging of medicines with strong acidity and alkalinity, it will fall off and migrate due to the corrosion of the medicine, which will affect the quality of the medicine. The coated butyl rubber stopper is also prone to film ...

AI Technical Summary

Problems solved by technology

Among them, the butyl rubber stopper will produce a small amount of rubber crumbs when the needle is inserted into the drug solution, and the crumbs may fall into the drug solution with the needle, and the drug solution will bring foreign matter, which will cause harm to the human body.

In addition, when the butyl rubber stopper is used in the packaging of medicines with strong acidity and alkalinity, it will fall off and migrate due to the corrosion of the medicine, which will affect the quality of the medicine. The coated butyl rubber stopper is also prone to film cracking and stripping during cleaning and use. Drug quality, and the fully coated butyl rubber stopper has potential safety hazards due to poor sealing

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