Infusion bag and infusion apparatus matched with same

Abstract

The invention provides a single-opening infusion bag which comprises a combination cover, an interface pipe and a bag, wherein the combination cover consists of a drug outlet mouth and a plugging cover; particularly, the upper section of the drug outlet mount is internally provided with a tapered hole matched with a tapered nipple of an infusion apparatus and externally provided with a thread; the annular wall of the plugging cover is internally provided with an inner thread matched with the thread outside the upper section of the drug outlet mouth; the center of a top plate of the plugging cover is provided with a plugging piece matched with the tapered hole in the upper section of the drug outlet mouth; and after the plugging cover is screwed on the drug outlet mouth to seal the drug outlet mouth, a sealing ring which can be torn off is used for sealing a gap between the plugging cover and the drug outlet mouth. The packaging structure of the infusion bag cannot loosen in conveying and transportation processes to cause the leakage and the pollution of liquid medicine. The infusion bag is used together with a matched infusion apparatus provided with the invention and can avoid plug scrap dropping and nurse accidental injuries which are caused by using a bottle inserting needle or an infusion apparatus puncturing combination cover in the process of an infusion operation.

Description

technical field [0001] The invention belongs to a medical packaging container and a medical device used in conjunction with it, in particular to an infusion bag and an infusion set used in conjunction with it. Background technique [0002] The infusion bag is a kind of packaging container that is often used in medical work to hold injections for intravenous infusion. Generally, the infusion bag is a single-mouth tube infusion bag, which is composed of a combined cover, a mouthpiece and a bag, and most of the combined covers have rubber stoppers. The infusion set is a frequently used medical device when using the injection in the infusion bag for infusion therapy. General infusion set all is to be connected by plastic flexible pipe sequentially by insertion needle, dropping funnel, liquid medicine filter and venipuncture needle, and flow regulator is hung outside the plastic flexible pipe below the dropping funnel and constitutes. Piercing the combination cap with the inser...

AI Technical Summary

Problems solved by technology

But it has the following problems: because the connection between the input joint, the output joint and a closed joint in series between the two joints is realized by friction fit, in the process of standardized industrial production, this kind of cooperation needs to control the axial pressure and horizontal torque two parameters, the process requirements are more complicated

Moreover, the above-mentioned three joints are all provided with handles. Such a packaging structure makes the finished product encounter bumps, extrusions, and collisions in the process of packaging, transportation, and use, which may cause the joints to deflect and loosen, causing the drug in the infusion bag to loosen. The overflow and pollution of the liquid cannot meet the requirements that the packaging structure of the injection must be safe and reliable

In addition, because the design of the liquid inlet end of the infusion set is a conical hole joint connected to the male conical joint of the syringe, the infusion bag used with it must be a double-tube infusion bag with an output tube and an input tube, otherwise it cannot be used. A syringe to fill an infusion bag with other medical fluids without the use of a needle

Compared with the double-tube infusion bag and the single-tube infusion bag, the former consumes more raw materials than the latter, and there is also the problem that the liquid medicine remaining in the infusion tube cannot enter the human body to play a therapeutic role

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