Combined cover and transfusion container with combined cover

Abstract

The invention provides a combined cover and a transfusion container with the combined cover. The combined cover comprises an outer cover and a rubber plug, wherein the outer cover comprises a top wall and an annular side wall which are shaped by integration, one part of the rubber plug is tightly plugged in the outer cover, and the other part extends downwards to form a connecting part which is selected and connected to the inner wall of an interface of the transfusion container; and a hole which can be exposed from the upper surface of the rubber plug is formed in the top wall, and a seal part which can be separated from the outer surface of the top wall easily is sealed and disposed on the hole. The transfusion container comprises a body and the combined cover, wherein an interface is formed in the upper end of the body; a raised annular wall is disposed on the outer side of the upper part of the interface; the extending end of the annular wall is sealed and connected with the outer cover; storage space used to store the rubber plug is formed through enclosing of the outer cover and the annular wall; and the connecting part is sealed and connected to the inner wall of the interface. According to the invention, the structure is simple; welding can be conducted conveniently and rapidly; reliable seal can be formed; and cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of medical supplies, in particular to a combined cover and an infusion container for holding medicinal liquid. Background technique [0002] The packaging container of existing big transfusion comprises plastic bottle or plastic bag, and the combined cap that is sealed on the interface of plastic bottle or plastic bag. Taking plastic bottles as an example, plastic bottles can be produced by one-step and two-step methods. The one-step method is to blow the bottle directly, and the two-step method is to make the preform first, and then heat it before blowing the bottle. The combination cover is composed of inner cover, outer cover and gasket through equipment. A welding disc plane is set on the bottle mouth of the plastic bottle, and a disc plane is also correspondingly set on the combined cover. The two disc planes are heated by heat radiation and then welded to form a closed container. With this method, th...

AI Technical Summary

Problems solved by technology

With this method, the plastic bottle or plastic bag can only be welded through the disc plane and the disc plane of the combined cap, and the combined cap needs to be assembled with many parts, which requires high assembly precision. Only the butt joint can ensure the sealing quality after welding, the complex process leads to problems easily, and the material cost and labor cost are usually high

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