Rubber stopper for medical injection

Abstract

The invention discloses a rubber stopper for medical injection. The rubber stopper for medical injection includes a rubber stopper top lid, a rubber stopper, a valve plate seat, a valve plate, a rubber stopper hatch cover, sealing rubber and a connection rivet. A mounting groove provided with the rubber stopper is formed in the rubber stopper top lid, the rubber stopper is installed in the mounting groove, and the bottom of the rubber stopper extends out of the rubber stopper top lid; the connection rivets are arranged on the two sides of the rubber stopper top lid, wherein the connection rivets sequentially penetrate through the upper surface of the rubber stopper top lid, the top upper surface of the rubber stopper, the top lower surface of the rubber stopper and the top lower surface ofthe rubber stopper top lid to achieve connection. When a syringe needle is pulled out, a valve plate of the rubber stopper for the medical injection can rotate back and finally covers the bottom surface of the valve plate seat under the elastic action of a rubber connecting seat, so that a communicating hole inside the rubber connecting seat is closed; through the structure, the rubber stopper for medical injection can ensure that the medicine liquid inside an infusion bottle does not leak when the syringe needle is pulled out under the condition of unused medicine liquid still in the infusion bottle.

Description

technical field [0001] The invention relates to the technical field of rubber stoppers, in particular to a medical injection rubber stopper. Background technique [0002] An infusion bottle is a container used for infusing liquids such as blood preparations or infusions into living organisms or for storing them. Currently, infusion bottles are made of glass, plastic, or the like, and a rubber stopper is fitted to the opening of the container in order not to leak the liquid filled therein. When using an infusion bottle, usually an injection needle such as a metal needle or a plastic needle penetrates a rubber stopper, and the drug solution is taken out therethrough. [0003] In the above-mentioned use, the injection needle is pulled out from the rubber stopper at the time corresponding to the treatment, but there are cases where it is pulled out not only after the liquid medicine is completely consumed, but also when the liquid medicine remains in the infusion bottle. At th...

AI Technical Summary

Problems solved by technology

[0003] In the above-mentioned use, the injection needle is pulled out from the rubber stopper at the time corresponding to the treatment, but there are cases where it is pulled out not only after the liquid medicine is completely consumed, but also when the liquid medicine remains in the infusion bottle. At this time, the rubber stopper needs to have good sealing performance to prevent the liquid medicine from leaking from the infusion bottle or the infusion bottle. At the same time, the top surface of the existing rubber stopper is generally in direct contact with the air, which is easily polluted by bacteria in the air. When inserting a metal needle or a plastic needle, the needle will easily bring bacteria attached to the surface of the rubber stopper into the interior of the infusion bottle

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