Special double-head connector for infusion bag

Abstract

The invention discloses a special double-head connector for an infusion bag. The special double-head connector comprises a connector base connected with the infusion bag; the upper end of the connector base is provided with an infusion connector and a dosing connector which are mutually parallel; a combined cover is welded above the infusion connector; the upper part of the combined cover is fixedly provided with an infusion rubber plug in a manner that the upper part of the combined cover is folded inwards; the lower part of the infusion rubber plug is supported by an inner cover diaphragm; the inner cover diaphragm and the combined cover form a whole in an injection molding manner; the upper end of the dosing connector is fixedly provided with a dosing rubber plug in a manner that the upper end of the dosing connector is folded inwards; a puncture diaphragm supports below the dosing rubber plug; the puncture diaphragm and the dosing connector form a whole in the injection molding manner; the infusion connector and the combined cover are welded in an aluminum foil welding manner, and two welding lines are welded; protective films are respectively pasted to upper ends of the combined cover and the dosing connector. The special double-head connector disclosed by the invention is reasonable in structural design, strong in airtightness and safe and reliable.

Description

technical field [0001] The invention relates to the field of medical equipment, specifically, a special double-head interface for an infusion bag. Background technique [0002] The infusion bag with double-head interface separates the dosing and infusion from each other, so that the dosing and infusion do not affect each other, the dosing is convenient, and it is not easy to cause cross-infection, so it is more and more widely used in clinical practice. In the existing double-headed interface, the infusion interface adopts a folded form, and the cut part is easily cracked by external force and brittle at high temperature, which is easy to cause pollution. At the same time, the opening force is also unstable. The upper sealing cover adopts a combination of inner and outer covers and rubber plugs. In the way of assembly, there is a gap between the matching parts of the inner and outer covers, and poor fit is prone to occur during the assembly process. At the same time, it ofte...

AI Technical Summary

Problems solved by technology

In the existing double-headed interface, the infusion interface adopts a folded form, and the cut part is easily cracked by external force and brittle at high temperature, which is easy to cause pollution. At the same time, the opening force is also unstable. The upper sealing cover adopts a combination of inner and outer covers and rubber plugs. In the way of assembly, there is a gap between the matching parts of the inner and outer covers, and poor fit is prone to occur during the assembly process. At the same time, it often occurs that the inner and outer covers are not welded firmly at the same time during welding, resulting in insufficient airtightness. In addition, the dosing interface is snapped The way to fix the rubber stopper, when adding medicine and pulling out the needle, there is a risk that the rubber stopper will be taken out together

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