Nitrogen pre-filling device of air current distributing machine

Abstract

The invention discloses a nitrogen pre-filling device of an air current distributing machine, and belongs to a medical nitrogen filling device. The nitrogen pre-filling device comprises a guard rail and a rail block which is driven by a transmission mechanism to slide along the guard rail and used for fixing penicillin bottles. A bottle feeding mechanism used for transferring the penicillin bottles onto the rail block, an overturning mechanism used for overturning and restoring the rail block, and a nitrogen filling mechanism used for filling the overturned penicillin bottles with nitrogen aresequentially arranged in the motion direction of the rail block. Air in the bottles is completely exhausted, the oxidation rate of medicines is effectively lowered, the medicine quality stability isimproved, nitrogen consumption is reduced, and the cost is lowered.

Description

technical field [0001] The invention relates to the field of medical equipment, and belongs to a medical nitrogen charging device. Background technique [0002] Due to their special physical and chemical properties, powder injection preparations are prone to oxidative deterioration during production and storage, which reduces the efficacy of the drug. In order to solve this problem, it is common practice to charge nitrogen into the medicinal cillin bottle to reduce the oxygen content in the bottle so as to prolong the storage time. The existing air flow packing machine is designed to fill the vial with nitrogen after the powder is loaded into the vial and before the rubber stopper is covered. Although it can effectively reduce the oxygen content in the vial, the actual test found that the drug will be produced as the expiry date approaches. Larger color level changes will affect the internal quality and drug properties of medicines. At the same time, due to the large nitro...

AI Technical Summary

Problems solved by technology

The existing air flow packing machine is designed to fill the vial with nitrogen after the powder is loaded into the vial and before the rubber stopper is covered. Although it can effectively reduce the oxygen content in the vial, the actual test found that the drug will be produced as the expiry date approaches. Larger color level changes affect the internal quality and drug properties of medicines

At the same time, due to the high flow rate of nitrogen that needs to be filled into the vial, part of the original powder in the bottle will be blown out. In order to ensure the product loading, it is necessary to increase the feeding amount of the original powder, resulting in increased production costs.

Images