Disposable transfusion air filter

Abstract

The invention discloses a disposable transfusion air filter and belongs to medical instruments. At present, air filtration of domestic infusion apparatuses generally adopts a membrane technology, and a satisfactory filtration effect on too fine foreign matters or bacteria and viruses is difficult to achieve. According to the disposable infusion air filter, air containing suspended solids (PM2.5, PM10, NO2, SO2, O3, CO, bacteria, viruses and the like) can enter a liquid medicine bottle after being humidified, adsorbed, precipitated and purified through filtration liquid (0.9% sodium chloride injection or 5% glucose injection), so that the medication safety of a patient is guaranteed at a higher level, and the blank of the project in China is filled up. The disposable infusion air filter is only used for filtering air entering a liquid medicine bottle during infusion, and a conventional infusion apparatus needs to be used in a matched mode during infusion. Technical characteristics are shown in Figure 1 in the specification.

Description

[0001] I. Technical Field: Classified as medical devices. Background technology:

[0002] 1. This "Disposable Infusion Air Filter" product is not currently available on the domestic market. Currently, the air filters for ordinary infusion sets in the domestic market cannot filter out many very fine airborne particles, and the filtration quality needs improvement.

[0003] 2. This disposable infusion air filter can filter dust (particle diameter 1-100 micrometers), flue gas (particle diameter 0.01-1 micrometer), ash (particle diameter 1-200 micrometers), and mist (particle diameter 2-200 micrometers). Airborne particles (particles larger than 10 micrometers in diameter), haze (particles approximately 0.1 micrometers in diameter), smoke (0.01–5 micrometers in diameter), smog (particles 0.001–2 micrometers in diameter), and many other airborne pathogens such as NO2, SO2, and O3, bacteria, and viruses are humidified, adsorbed, or precipitated into the filter bottle, thus preventing them from entering the infusion bottle and further ensuring the patient's safe medication use.

[0004] 3. We see daily air quality reports in the weather forecast, and the air quality is often worrying. The air quality in real-world intravenous infusion environments is also inconsistent. For example, when ambulances are establishing intravenous access and administering medication during emergency situations, the air quality along the route is often overlooked. Hospital infusion halls, corridors, clinics, and other areas are densely populated with patients, making the presence of suspended pathogens in the air inevitable. In battlefields filled with smoke and dust, intravenous medication administration is a lifeline, and rescue efforts are urgent; air quality issues during intravenous medication administration in field hospitals are severe. There are also frequent cases of outdoor infusions encountering airborne particulate matter. For many years, the air quality during intravenous infusions has lacked higher-level attention. This medication safety issue should be taken seriously and resolved as soon as possible.

[0005] 4. This product offers an innovative perspective, filling a gap in the domestic market for this product. Its production cost is low; based on current market conditions, each set is estimated to cost only a few cents to produce. It is simple, safe, and easy to use, and safe medication benefits the country and its people. It urgently needs widespread recommendation and promotion.

[0006] III. Summary of the Invention: The "Disposable Infusion Air Filter" is a device that uses a liquid (0.9% sodium chloride injection or 5% glucose injection) as a solvent to remove airborne suspended particles through humidification, adsorption, dissolution and precipitation, allowing patients to receive intravenous treatment in a cleaner and more hygienic manner, ensuring safe medication use and preventing potential problems. Attached image description:

[0007] Figure 1 The image shown is a schematic diagram of the main body of the "Disposable Infusion Air Filter".

[0008] Figure 1 The numerical labels in the text are as follows:

[0009] Number 1 - Bottle stopper puncturer, used on the stopper of medicine bottles; this one is relatively short.

[0010] Number 2 - The tip of the filter bottle stopper piercing device is used to penetrate the stopper of the filter bottle and insert the rigid tube below the liquid surface. The length of the rigid tube inserted below the liquid surface is proportional to the filtration effect.

[0011] Number 3 - Connecting bottle ventilation hose, used for ventilation between the medicine bottle and the filter bottle.

[0012] Number 4 - The main body of the stopper piercing device for the filter bottle (with rigidity) is relatively long, reaching below the surface of the filter liquid. The length of the insertion tube below the liquid surface is directly proportional to the filtration effect.

[0013] Number 5 - Dual-channel dual-chamber design, one channel connects to two bottle stopper puncturers, and the other channel is the air inlet channel for the filter bottle.

[0014] Number 6 - Membrane air filter. The membrane air filter is the filter used in ordinary infusion sets to initially filter the gas entering the filter bottle.

[0015] Number 7 - the air inlet of the connecting bottle vent tube. After the tube is inserted into the filter bottle, this air inlet is above the liquid surface, with some space between it and the liquid surface.

[0016] Figure 2 This is a usage diagram.

[0017] Figure 2 The numerical labels in the text are as follows:

[0018] Number 1 - Infusion bottle for intravenous fluids.

[0019] Number 2 - Connecting bottle vent tube. Connects the medicine bottle and the filter bottle.

[0020] The membrane air filter for the number 3 filtrate bottle. This air filter is currently used in common infusion sets for initial filtration of the incoming air.

[0021] Number 4 - Bottle stopper puncture device for ventilation cannula of filtrate bottle.

[0022] Number 5 - Filtration bottle. (Filtration solution is prepared using 0.9% sodium chloride injection or 5% glucose injection).

[0023] Number 6 - Infusion set tubing. The tubing through which the medication flows.

[0024] Number 7 - Infusion set drip chamber. Observe the flow rate of the medication.

[0025] Number 8 - Infusion set flow rate regulator.

[0026] Number 9 - IV stand.

[0027] V. Specific usage instructions:

[0028] Figure 2 This is a diagram illustrating the usage. (Use 0.9% sodium chloride injection or 5% glucose injection for the air filter solution).

[0029] 1. Near the stopper of the standard disinfectant filter bottle (5), following the principles of aseptic technique, first insert the longer stopper puncturist (4) below the liquid surface of the filter bottle. The length of the hard tube inserted below the liquid surface is proportional to the filtration effect. Hang the filter bottle with the bottle opening facing upwards and vertically on the top of the infusion stand (9).

[0030] 2. Hang the filled medicine bottle (1) with the bottle mouth facing down on the top of the infusion stand, with the filter bottle and the medicine bottle hanging at the same height. Insert the bottle stopper puncturist at the other end of the bottle-connecting vent tube into the medicine bottle to allow air to pass between the two bottles.

[0031] 3. Next, insert the regular infusion set into the medicine bottle and begin the regular air purging operation (steps: release the flow rate regulator (8), let the medicine flow through the infusion tubing (6) to the drip chamber (7), invert or tilt the drip chamber (7), and after the drip chamber is filled with about half of the medicine, straighten the inverted or tilted drip chamber vertically according to the top and bottom position, and let the medicine continue to purge through the drug filter to the thin intravenous needle). After the air purging is completed, it is ready for use.

Claims

1. Technical features: The bottle stopper puncturer (1) for the medicine bottle is connected to the bottle ventilation hose (3) at a 90° angle, and the lumens are connected. The other end of the bottle ventilation hose (3) is connected to the horizontal port of the double channel double cavity (5) to keep the lumen of the medicine bottle stopper puncturer (1), ventilation hose (3) and bottle ventilation tube in the same position. A membrane air filter (6) is installed at the upper end of the dual-channel dual-chamber assembly; a long ventilation tube (4) with a bottle stopper piercing device (2) for the filter liquid bottle is installed at the lower end. The long tube should be inserted below the liquid surface when in use. The length of the tube below the liquid surface is proportional to the filtration effect. The membrane air filter (6), the dual-channel dual-chamber assembly (5), the long tube (4), and the bottle stopper piercing device (2) are ventilated from top to bottom. Scope of protection: The air inlet tubing (including 1, 3, 5, 7) and the air inlet tube (including 6, 5, 4, 2) are combined into one shape and structure.

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