Automatic liquid following infusion head for soft bag infusion

Abstract

The invention relates to an automatic liquid following infusion head for soft bag infusion. A liquid inlet channel, a liquid outlet channel and a floating valve are arranged in an infusion head body of the automatic liquid following infusion head, wherein the floating valve is arranged at the bottom end of the infusion head body and consists of a floating valve chamber, a floating ball and a valve; the floating ball is arranged in the floating valve chamber and floats up and down; the valve is connected with the floating ball; one side of the floating valve chamber is communicated with the liquid inlet pipe; a channel is arranged on the other side of the floating valve chamber and is communicated with the liquid outlet channel; an opening and a channel for a liquid feeding pipe are respectively arranged on two sides of the floating valve chamber; the valve is arranged between the liquid inlet channel and the liquid outlet channel; the liquid inlet channel and the liquid outlet channel are blocked by the valve through upward floating of the floating ball; the liquid inlet channel and the liquid outlet channel are communicated by the valve through sinking of the floating ball; the liquid outlet channel and the channel are respectively communicated with the liquid outlet pipe. According to the automatic liquid following infusion head disclosed by the invention, the infusion path of a soft bag container is controlled by closing or opening the floating valve, and automatic change of bottles is realized. The automatic liquid following infusion head has the advantages of simple structure, low cost and easiness for popularization in a wide range; the labor intensity of medical workers is reduced.

Description

technical field [0001] The invention relates to the technology of automatic bag changing for medical infusion, and refers to an automatic liquid-successor infusion head specially used for soft bag infusion, which uses physical principles to automatically control the successive input of liquid in an infusion group. Background technique [0002] I originally applied for an invention patent (patent number: ZL201210408974.4) on the use of physical principles to control the automatic bottle change of infusion, which realizes automatic bottle change by controlling the intake of multiple bottles of liquid in sequence. There are many limitations in actual use, such as: [0003] Must be used in hard plastic or glass bottle dispensing containers, not in soft bag dispensing containers. This is because soft containers can be used for infusion without air intake. If this solution is used for continuous infusion of soft bottle groups, that is, when the second or subsequent liquid bottles...

AI Technical Summary

Problems solved by technology

[0003] Must be used in hard plastic or glass bottle dispensing containers, not in soft bag dispensing containers

This is because soft containers can be used for infusion without air intake. If this solution is used for continuous infusion of soft bottle groups, that is, when the second or subsequent liquid bottles are soft containers, it may cause the second or subsequent liquids to be infused. Early output and mixed with the first bottle of liquid, causing medical accidents

Therefore, the infusion group used in this program can only be the first bottle as an infusion bag at most, because the first bottle can be infused regardless of whether it is air-filled or not, and the automatic bottle-changing function starts from the second bottle, and only It is used for hard bottles to achieve the purpose of continuous infusion

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