Rubber plug for transfusion

Abstract

The invention relates to a rubber plug for transfusion. The rubber plug for transfusion comprises a regular polygon plug body, a through hole for inserting a liquid injection needle tube is formed in the center of the plug body, a plurality of liquid cavities for independently extracting a solution are annularly distributed around the through hole at equal intervals, and each liquid cavity is respectively communicated with a hole formed in each surface of the regular polygon plug body. The regular polygon plug body is plugged into a bottle opening of a medicine bottle, each regular polygon face of the plug body is provided with the hole, each liquid cavity formed in the plug body is communicated with the medicine bottle, and therefore medicine liquid in the medicine bottle can be extracted from the liquid cavity conveniently, meanwhile, a one-way valve is arranged in each hole, and the one-way valves are closed under the action of no external force of needle tube suction force, each liquid cavity and the medicine bottle are independent of each other, an independent sealed space is formed, the situation that liquid left after last extraction enters the medicine bottle again, and consequently next extraction is disturbed is avoided, and the mutual pollution influence during repeated extraction is avoided through relatively isolated and independent extraction.

Description

technical field [0001] The invention relates to the technical field of medical rubber stoppers, in particular to a rubber stopper for transfusion. Background technique [0002] Rubber stoppers for medical infusions are required to contain no harmful soluble substances such as lead, mercury, arsenic, barium, etc., and have no effect on the medicines that can be filled, and the bottle stopper itself must not have ejection. Generally, it is made of rubber materials such as NR, IIR and SBR, and is produced by molding. [0003] Existing medicine needs to be dispensed before liquid injection. Generally, the needle is directly inserted from the stopper of the medicine into the extracted part of the medicine bottle, and then injected into another medicine bottle. The medicine in one bottle often needs to be extracted many times. Repeated extraction of a certain part is easy to bring bacteria into the medicine bottle, so it should be extracted in different places each time, but beca...

AI Technical Summary

Problems solved by technology

[0003] Existing medicine needs to be dispensed before liquid injection. Generally, the needle is directly inserted from the cork of the medicine into the extracted part of the medicine bottle, and then injected into another medicine bottle. The medicine in one bottle often needs to be extracted many times. Repeated extraction of a certain part is easy to bring bacteria into the medicine bottle, so it should be extracted in different places each time, but because of the small volume of the bottle stopper, it cannot be far away from the last part when it is inserted again, so it is passively used by the last time. The leftover problems of the extraction have an impact, so that when repeated extractions are performed many times, the subsequent liquid medicine will be more or less affected by the previous ones.

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