An infusion air supplement bag (with gas)

Abstract

The present application belongs to the technical field of medical devices, and particularly relates to a kind of infusion air supplementing bag (with gas). The purpose is to provide a kind of infusion air supplementing bag (with gas) which is composed of soft gas storage bag, switch connecting piece, clean gas, non-dry adhesive and non-dry adhesive ring. One end of the switch connecting piece is connected to the gas inlet of the disposable infusion device (gas gravity infusion type), and the other end is connected to the soft gas storage bag. During infusion, medical staff paste the gas inlet on the disposable infusion device (gas gravity infusion type) to the switch connecting piece of the infusion air supplementing bag (with gas), open the switch connecting piece on the infusion air supplementing bag (with gas), and normal infusion can be realized. When the gas pressure in the infusion bottle is lower than the atmospheric pressure, under the action of atmospheric pressure, the clean gas in the soft gas storage bag will be automatically supplemented into the infusion system through the gas inlet on the disposable infusion device (gas gravity infusion type). The whole process realizes closed normal gravity infusion, and reduces the occurrence of infusion adverse events.

Description

Technical Field

[0001] This invention belongs to the category of infusion and blood transfusion devices in medical devices, and is used to supplement clean gas into the infusion system during infusion. Background Technology

[0002] Disposable infusion sets (air-inlet gravity infusion type) are Class III medical devices whose safety and effectiveness must be strictly controlled. They are characterized by large-scale use, high risk, and numerous complaints and reports. During use, suspected adverse events such as chills, high fever, nausea, and vomiting may occur, causing or potentially causing harm to the human body. Current disposable infusion sets (air-inlet gravity infusion type) utilize the principle that the internal pressure of the infusion system, formed by atmospheric pressure and hydrostatic pressure, is higher than the venous pressure in the human body for infusion. During the infusion process, as the amount of medication in the infusion bottle decreases, the pressure inside the bottle gradually decreases and forms a negative pressure. To ensure continuous and normal infusion, air needs to be introduced into the infusion bottle through the air intake device on the disposable infusion set (air-inlet gravity infusion type). The air intake device has an air filter. If the pore size of the filter membrane on the air filter is too small, the air resistance will be too large, which will not be able to guarantee the required infusion flow rate. If the pore size of the filter membrane on the air filter is too large, the air resistance will be small, but it will not be able to effectively prevent microorganisms from entering the infusion system. Currently, the pore size of the air filter membrane on the air intake device is 0.5um, but the size of viruses and microorganisms is between 20nm and 10um. Summary of the Invention

[0003] The purpose of this invention is to provide an infusion gas-filled bag (with gas) comprising a soft gas storage bag, a switch connector, clean gas, adhesive tape, and adhesive ring. One end of the switch connector connects to the air inlet of a disposable infusion set (gravity-feed infusion type), and the other end connects to the soft gas storage bag. During infusion, medical personnel attach the air inlet of the disposable infusion set (gravity-feed infusion type) to the switch connector of the infusion gas-filled bag, and then open the switch connector to begin normal infusion. When the gas pressure inside the infusion bottle is lower than atmospheric pressure, clean gas from the soft gas storage bag will automatically replenish the infusion system through the air inlet of the disposable infusion set (gravity-feed infusion type) under atmospheric pressure. The entire process achieves closed-loop normal gravity infusion.

[0004] To achieve the above objectives, the technical solution adopted in this invention is as follows: One end of the switch connector is attached with an adhesive ring, and the other end is connected to a soft gas storage bag. The soft gas storage bag contains clean gas that has undergone ultrafiltration and treatment of bacteria and bacterial cells, and an adhesive label is adhered to the outside of the soft gas storage bag. Before infusion, medical personnel use the adhesive label to attach the soft gas storage bag to the infusion bottle, and attach the air inlet of the disposable infusion set (air-inlet gravity infusion type) to the adhesive ring of the switch connector of an infusion gas replenishment bag (with gas). During infusion, the switch connector on the infusion gas replenishment bag (with gas) is opened. When the gas pressure inside the infusion bottle is lower than atmospheric pressure, the clean gas in the soft gas storage bag will automatically enter the infusion system through the air inlet of the disposable infusion set (air-inlet gravity infusion type) to replenish the system, achieving closed-loop normal gravity infusion throughout the entire process.

[0005] The aforementioned infusion gas replenishment bag (with gas) contains clean gas that has undergone ultrafiltration and has been treated to remove bacteria and bacterial cells. When the gas pressure inside the infusion bottle is lower than atmospheric pressure, the clean gas in the soft gas replenishment bag will automatically enter the infusion system through the air inlet on the disposable infusion set (gravity infusion type) to replenish the system under atmospheric pressure. The entire process achieves closed-loop normal gravity infusion.

[0006] Compared to disposable infusion sets (air-inlet gravity infusion type), the above-mentioned infusion gas-filled bag (with gas) provided by this invention offers the following advantages: When using a disposable infusion set (air-inlet gravity infusion type) alone, the air supplied to the infusion system is medical ambient air containing particles smaller than 0.5 μm. When the disposable infusion set (air-inlet gravity infusion type) is connected to the infusion gas-filled bag (with gas) of this invention, the air supplied to the infusion system is clean gas from a non-medical environment that has undergone ultrafiltration and treatment to remove bacteria and bacterial cells. Compared to an infusion gas-filled bag (application number: 202322432429.5), the structure is simpler, and it avoids the possibility of tubing closure caused by clamps. Compared to an infusion gas-filled bag (application number: 202322788808.8), it has the advantages of a simpler manufacturing process and prevention of secondary contamination during sterilization. Compared with disposable infusion gas bags (application number: 202322967565.4), it has the advantages of lower production cost and easier installation and use. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of an infusion gas-filled bag (with gas) according to the present invention.

[0008] In the diagram: 1-Switch connector; 2-Adhesive ring; 3-Soft gas storage bag; 4-Clean gas; 5-Adhesive sticker. Detailed Implementation

[0009] Figure 1This is a schematic diagram of the structure of an infusion gas-filled bag (with gas) according to the present invention. One end of the switch connector 1 on the infusion gas-filled bag (with gas) is attached with an adhesive ring 2, and the other end is connected to a soft gas storage bag 3. The soft gas storage bag 3 contains clean gas 4, and an adhesive sticker 5 is adhered to the outside of the soft gas storage bag 3.

[0010] Using the gas-filled infusion bag of this invention, before infusion, medical staff attach the soft gas storage bag 3 to the infusion bottle using an adhesive sticker 5, and connect the air inlet of the disposable infusion set (air-inlet gravity infusion type) to the adhesive ring 2 on the switch connector 1 of the gas-filled infusion bag. During infusion, the switch connector 1 on the gas-filled infusion bag is opened. When the gas pressure inside the infusion bottle is lower than atmospheric pressure, the clean gas 4 in the soft gas storage bag 3 will automatically enter the infusion system through the air inlet of the disposable infusion set (air-inlet gravity infusion type) to replenish the system. The entire process achieves closed-loop normal gravity infusion.

[0011] When the infusion gas-filled bag (with gas) provided by this invention is connected to a disposable infusion set (gravity-feed infusion type), the gas supplied to the infusion system is clean gas from a non-medical environment. When the disposable infusion set (gravity-feed infusion type) is used alone, the gas supplied to the infusion system is medical-grade air containing particles smaller than 0.5 μm. The use of the infusion gas-filled bag (with gas) connected to a disposable infusion set (gravity-feed infusion type) can reduce the occurrence of adverse infusion events. The infusion gas-filled bag (with gas) of this invention has a simple structure, is convenient to use, and is safe and effective.

Claims

1. An infusion bag with gas filling, characterized in that: The switch connector (1) has an adhesive ring (2) attached to one end of the port, which can be attached to the air inlet of a disposable infusion set (air-inlet gravity infusion type). The other end is connected to a soft gas storage bag (3). The soft gas storage bag (3) contains clean gas (4) that has been ultrafiltered and treated for bacteria and cells. An adhesive sticker (5) is attached to the outside.

2. The infusion gas-filled bag (with gas) according to claim 1, characterized in that: The switch connector (1) has an adhesive ring (2) attached to one end of the port, which can be attached to the air inlet of a disposable infusion set (air-inlet gravity infusion type).

3. The infusion gas-filled bag (with gas) according to claim 1, characterized in that: The soft gas storage bag (3) contains clean gas (4) that has been ultrafiltered and treated for bacteria and microbial cells, and is covered with an adhesive label (5).

Images