Internal sealed buckle-assembled non-welded combined cover and interface for infusion

Abstract

The invention discloses an internal sealed buckle-assembled non-welded combined cover and an interface for infusion, belonging to the technical field of medicine packaging. The combined cover comprises an outer cover and a rubber plug, wherein the outer cover is composed of a cover body and an easy-to-be-broken handle; the interface is composed of a cylindrical tubular opening pipe and a connector which is integrated with the pipe; the easy-to-be-broken handle is arranged at the top of the cover body; the rubber plug is arranged inside a rubber plug cavity of the cover body; a seal ring I, which is protruded downwards, is arranged at the top of the interior of the rubber plug cavity; a seal buckle groove is arranged on the lower part of the inner circumference of the rubber plug cavity; on the outer side of a spherical pit, the upper surface and the lower surface of the rubber plug are respectively provided with a seal ring II and a second seal ring III; the top end of the cylindrical tubular opening pipe of the interface is blocked by virtue of an internal sealed compartment so as to form a sealed end; a seal ring IV, which is protruded upwards, is arranged on the upper surface of the internal sealed compartment; a seal buckle ring is arranged on the upper part of the outer circumference of the cylindrical tubular opening pipe; the seal ring I is matched with the seal ring II; the seal ring III is matched with the seal ring IV; and the seal buckle ring is matched with the seal buckle groove. By virtue of the combined cover and the interface disclosed by the invention, the sealing property and the safety of use can be completed and guaranteed.

Description

technical field [0001] The invention relates to an interface for infusion of a soft bag and a combined cover thereof, belonging to the technical field of medical packaging. Background technique [0002] With the development of infusion packaging technology and changes in the infusion market, the packaging method of infusion has changed from glass bottles to non-PVC composite film soft bags. Since the single-mouth tube soft bag infusion can not effectively distinguish between the drug delivery port and the dosing port, the double-tube double-valve soft bag infusion has gradually become the mainstream. The analysis of various double-tube double-valve combined cap interface forms, the existing technologies are generally as follows Disadvantages: 1. The two tubes are integrated, and the same welded joint is used, that is, a single seat and two tubes, and too much material is used. 2. When the interface combination cover is combined, it needs to be welded, which increases consum...

AI Technical Summary

Problems solved by technology

Since the single-mouth tube soft bag infusion can not effectively distinguish between the drug delivery port and the dosing port, the double-tube double-valve soft bag infusion has gradually become the mainstream. The analysis of various double-tube double-valve combined cap interface forms, the existing technologies are generally as follows Disadvantages: 1. Two pipes are integrated, using the same welded joint, that is, single seat and double pipes, using too much material

2. Welding is required when the interface combination cover is combined, which increases consumption and scrap rate, and there is a risk of contamination by visible foreign matter during welding

3. The combination of non-welded combined caps may cause the risk of contamination of the finished infusion solution due to poor sealing during use.

4. Due to the double-layer structure of the combined cover, the interface diameter of the combined cover cannot be reduced to the minimum, resulting in an increase in the amount of materials

[0003] For example, the technology disclosed in the invention patent application with the publication number CN103431999A, the publication date is December 11, 2013, and the title is "Single Folding Handle No Inner Cover Type Infusion Combination Cover and Interface and Its Equipment", when used in the bag The sealing of the liquid medicine is completely realized by the outer cover pressing the rubber plug. During production, storage, transportation, transfer and use, due to the change of the pressure inside the bag, it is easy to cause the liquid medicine to leak through the gap of the rubber plug, resulting in leakage and drug leakage. The liquid is contaminated with bacteria; at the same time, the rubber plug is in direct contact with the liquid medicine, and the compatibility between the rubber plug and the liquid medicine needs to be investigated during production, and the rubber plug must use butyl rubber plugs or higher quality rubber plugs, production costs and use risks Too high; moreover, there is no support layer between the rubber plug and the tubular interface, and the contact surface is small. Inserting a steel needle or a plastic needle during use may cause the rubber plug to shift or be severely dented, resulting in lax needle holding and leakage

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