Infusion air supply device

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an infusion air supply device. The invention aims to provide an infusion air supply device which is composed of a compressed air storage tank, a soft air bag, a filter membrane, a puncture needle, a protective sleeve, a pipeline and a clamp, compressed sterile clean air is stored in the compressed air storage tank, and an air inlet device and a separated air inlet device on a disposable infusion apparatus (air inlet gravity infusion type) can be replaced. When the infusion air supply device is used, the easily-folded thin tube with the closed end, inserted into the soft air bag, on the compressed air storage tank is broken firstly, compressed sterile clean air is input into the soft air bag, an air inlet device on the disposable infusion apparatus (air inlet gravity infusion type) is closed by medical staff before infusion, then a puncture needle on the infusion air supply device is inserted into an infusion bottle, and then the infusion air supply device is closed. During infusion, a clip on a pipeline of the infusion air supply device is opened, and when the pressure of air in an infusion bottle is lower than the atmospheric pressure, sterile clean air in the soft air bag automatically enters an infusion system to be supplemented, so that closed normal gravity infusion is realized in the whole process, and adverse events of infusion can be reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the infusion, blood transfusion appliance class of medical devices, and is used to supplement sterile clean gas to the infusion system during infusion. BACKGROUND

[0002] Disposable infusion apparatus (air inlet gravity infusion type) is a Class III medical device that must be strictly controlled in terms of safety and effectiveness, and has the characteristics of large quantity, high risk, and many complaints. During use, it may cause or may lead to suspicious adverse events such as chills, high fever, nausea, and vomiting. The present disposable infusion apparatus (air inlet gravity infusion type) uses the principle that the pressure in the infusion system is higher than the venous pressure of the human body to perform infusion by using atmospheric pressure and liquid static pressure. In order to prevent microorganisms from entering the infusion system, an air filter is provided on the air inlet device. The size of viral microorganisms is between 20 nm and 10 um, and the air filter with a pore size of 0.5 um on the air inlet device cannot effectively block all viral microorganisms and toxic gases in the air of the medical environment from entering the infusion system. The entry of these gases will contaminate the drug solution, thereby causing infusion adverse events to occur. SUMMARY

[0003] The purpose of the present application is to provide an infusion air supplement device composed of a compressed gas storage tank, a soft gas bag, a filter membrane, a puncture needle, a protective sleeve, a pipeline, and a clamp. The compressed gas storage tank stores compressed sterile clean gas, which can replace the air inlet device and the separate air inlet device on the disposable infusion apparatus (air inlet gravity infusion type). During use, the end of the compressed gas storage tank inserted into the soft gas bag is first folded to close the thin and easy-to-fold tube, so that the compressed sterile clean gas is input into the soft gas bag. Before infusion, the medical staff must close the air inlet device on the disposable infusion apparatus (air inlet gravity infusion type), and then insert the puncture needle on the infusion air supplement device into the infusion bottle. During infusion, the clamp on the pipeline of the infusion air supplement device is opened, and normal use is achieved. When the gas pressure in the infusion bottle is lower than the atmospheric pressure, the sterile clean gas in the soft gas bag will automatically enter the infusion system for supplementation. The entire process realizes closed normal gravity infusion.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is that: one end of the soft gas bag is connected with the compressed gas storage tank, the other end is connected with the pipeline, the upper end of the compressed gas storage tank is closed, the easy-to-fold thin tube is inserted into the soft gas bag and stores compressed sterile clean gas, the pipeline is provided with a clamp and is connected with a puncture needle, the puncture needle is provided with a protective sleeve, and the needle seat is provided with a filter membrane. When in use, the easy-to-fold thin tube inserted into the soft gas bag at the upper end of the compressed gas storage tank is first folded to make the compressed sterile clean gas input into the soft gas bag. Before infusion, the medical staff needs to close the air inlet device on the disposable infusion device (air inlet gravity infusion type), and then inserts the puncture needle on the infusion air supplement device into the infusion bottle. When infusing, the clamp on the pipeline of the infusion air supplement device is opened, and when the gas pressure in the infusion bottle is lower than the atmospheric pressure, the sterile clean gas in the soft gas bag will automatically enter the infusion system for supplement under the action of the atmospheric pressure. The whole process realizes closed normal gravity infusion.

[0005] The compressed sterile clean gas in the compressed gas storage tank of the infusion air supplement device is stored, the easy-to-fold thin tube at the upper end is folded, and the compressed sterile clean gas will be input into the soft gas bag. When the gas pressure in the infusion bottle is lower than the atmospheric pressure, the sterile clean gas in the soft gas bag will automatically enter the infusion system for supplement under the action of the atmospheric pressure, and the whole process realizes closed normal gravity infusion.

[0006] The above-mentioned infusion air supplement device provided by the present application, compared with the air inlet device on the disposable infusion device (air inlet gravity infusion type) and the separate air inlet device: the sterile clean gas is supplemented into the infusion system by using the infusion air supplement device of the present application. The medical environment air containing viruses and toxic gases smaller than 0.5 um is introduced into the infusion system by using the air inlet device on the disposable infusion device (air inlet gravity infusion type) and the separate air inlet device, and these air will pollute the drug solution, thereby causing infusion adverse events. Compared with the infusion air supplement device (application number: 202322293197.X): it has the advantages of small volume, convenient storage and transportation. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is a structural schematic view of the infusion air supplement device of the present application.

[0008] In the figure: 1-puncture needle; 2-needle seat; 3-pipeline; 4-clamp; 5-filter membrane; 6-soft gas bag; 7-compressed sterile clean gas; 8-protective sleeve; 9-compressed gas storage tank; 10-easy-to-fold thin tube at the upper end. EMBODIMENT

[0009] Figure 1The figure is a structural diagram of the infusion air supplement device. The soft air bag 6 of the infusion air supplement device is connected with the compressed gas tank 9 at one end and with the pipeline 3 at the other end. The upper end of the compressed gas tank 9 is closed with the easy-to-fold thin tube 10 inserted into the soft air bag 6 and storing compressed sterile clean gas 7. The pipeline 3 is provided with the clamp 4 and connected with the puncture needle 1. The puncture needle 1 is provided with the protective sleeve 8. The needle seat 2 is provided with the filter membrane 5.

[0010] The infusion air supplement device is used as follows. First, the easy-to-fold thin tube 10 inserted into the soft air bag 6 of the compressed gas tank 9 is folded to make the compressed sterile clean gas 7 enter the soft air bag 6. Before infusion, the medical staff should close the air inlet device of the disposable infusion device (air inlet gravity infusion type) and then insert the puncture needle 1 of the infusion air supplement device into the infusion bottle. During infusion, the clamp 4 of the pipeline 3 of the infusion air supplement device is opened. When the gas pressure in the infusion bottle is lower than the atmospheric pressure, the sterile clean gas in the soft air bag 6 will enter the infusion system through the pipeline 3 and the filter membrane 5 to supplement, and the whole process realizes closed normal gravity infusion.

[0011] The sterile clean gas is supplemented into the infusion system by the infusion air supplement device. The medical environment air containing less than 0.5um virus microorganism and toxic gas is supplemented into the infusion system by the air inlet device and the separated air inlet device of the disposable infusion device (air inlet gravity infusion type). The infusion air supplement device can reduce the occurrence of infusion adverse events. The infusion air supplement device is easy to process and produce, small in size, convenient to store and transport, safe and effective.

Claims

1. An infusion and gas supplement device, characterized in that: One end of the soft gas bag (6) is connected to the compressed gas storage tank (9), and the other end is connected to the pipeline (3).

2. The infusion and gas supplement device according to claim 1, characterized in that: A flexible tube (10) with a closed end is inserted into a soft gas bag (6) on a compressed gas storage tank (9).

3. The infusion and gas supplement device according to claim 1, characterized in that: The compressed gas storage tank (9) contains compressed sterile clean gas (7).

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