Float valve liquid-stopping infusion apparatus easy to exhaust
By introducing a hollow shell and a breathable and water-blocking component into the float valve infusion set, the problems of inconvenient gas discharge and float valve height control are solved, realizing an easy-to-operate automatic infusion and bottle changing process, and improving the ease of use and safety of the infusion set.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-03-27
AI Technical Summary
Existing floating valve infusion sets have shortcomings in terms of inconvenient gas discharge and floating valve height control, which increases the difficulty of clinical operation and may lead to medical disputes.
Design a liquid-stopping float valve with a hollow shell, combined with a breathable and water-blocking component, to achieve gas discharge by inverting or squeezing the dripping funnel, and to control the height of the float valve by the cooperation of the liquid-stopping diaphragm and the base, so as to realize automatic liquid dispensing and bottle changing operations.
It simplifies the gas expulsion process, reduces the difficulty of clinical operation, improves the convenience and safety of using infusion sets, and reduces the occurrence of medical disputes.
Smart Images
Figure CN121731606A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to medical devices, and particularly relates to a float valve liquid-stopping infusion device which is easy to exhaust. BACKGROUND
[0002] At present, inpatient treatment basically adopts infusion as an essential treatment method. When clinical nursing work is performed, infusion occupies a very large workload. When nursing staff members manage multiple patients, the situation that the nursing staff members cannot timely pull out the needle after infusion bottle replacement or infusion ends occurs, which brings psychological pressure and backflow of blood to the patients, and occasionally, medical disputes occur. With the development of infusion devices, a float valve liquid-stopping infusion device appears in clinical practice. The infusion device can automatically stop after infusion ends, which gives the nursing staff members sufficient time to perform bottle replacement or needle pulling operation. However, the infusion device still has some room for improvement, for example, the gas in the drip chamber is inconvenient to exhaust, and the height of the float valve needs to be controlled. SUMMARY
[0003] The present application solves the technical problems of the prior art, and provides a float valve liquid-stopping infusion device which is easy to exhaust, is reasonable in design, is convenient to operate, and is easy to use in clinical practice.
[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: A float valve liquid-stopping infusion device which is easy to exhaust, comprising an infusion pipeline, a bottle plug piercer is arranged at one end of the infusion pipeline, a drip chamber, a flow rate regulator, and a liquid filter are sequentially arranged on the infusion pipeline along the infusion direction, characterized in that a liquid-stopping float valve is arranged in the drip chamber, the liquid-stopping float valve is provided with a hollow shell, a liquid-stopping diaphragm for closing the liquid outlet of the drip chamber is arranged at the bottom of the shell, a liquid-stopping base which cooperates with the liquid-stopping diaphragm is arranged at the liquid outlet of the drip chamber, and a liquid passing channel which communicates with the liquid outlet of the drip chamber is arranged at the center of the liquid-stopping base. The infusion process is as follows: Firstly, the liquid in the infusion container enters the drip chamber through the bottle plug piercer, the pipeline, and the drip chamber cap. At this time, because the liquid-stopping diaphragm of the liquid-stopping float valve closes the liquid outlet of the drip chamber and is firmly adsorbed on the liquid-stopping base, the gas in the upper end pipeline of the drip chamber cap and the drip chamber cavity cannot be exhausted, and the liquid in the infusion container cannot completely enter the drip chamber cavity. Secondly, the liquid-stopping float valve is separated from the liquid-stopping base to leave the liquid outlet of the drip chamber by inverting the drip chamber or pressing the drip chamber, the gas in the drip chamber cavity enters the liquid container upward to leave space, and the liquid enters the drip chamber cavity, and the liquid level is controlled at a proper height by repeatedly pressing or righting the drip chamber. Thirdly, the flow rate is adjusted to start the infusion. Fourthly, when the infusion ends, the liquid-stopping float valve is adsorbed on the liquid-stopping base to close the liquid outlet of the drip chamber, and the infusion is automatically stopped. The fifth step, after changing the bottle, the liquid stop floating valve is floated by pressing the drip chamber or the pipeline below the drip chamber several times.
[0005] The technical problem solved by the present application can also be achieved by the following technical solutions, the drip chamber is provided with a gas-permeable water-blocking assembly cooperating with the liquid stop floating valve. The infusion process of the floating valve infusion device with the gas-permeable water-blocking assembly is as follows, The first step, the liquid in the infusion container enters the drip chamber cavity through the bottle plug puncture device, the pipeline and the drip chamber cap. The second step, the gas in the drip chamber cap upper pipeline and the drip chamber cavity is discharged through the gas-permeable water-blocking assembly until the liquid level height blocks the gas-permeable water-blocking assembly, and the liquid stop floating valve is floated by pressing the drip chamber or the pipeline below the drip chamber. The third step, adjust the appropriate flow rate to start infusion. The fourth step, when the infusion is finished, the liquid stop floating valve is adsorbed on the liquid stop base and blocks the drip chamber liquid outlet, and the infusion is automatically stopped. The fifth step, after changing the bottle, the liquid in the infusion container continues to discharge the gas in the drip chamber cap upper pipeline and the drip chamber cavity through the gas-permeable water-blocking assembly, enters the drip chamber and automatically reaches the height of the gas-permeable water-blocking assembly, and the liquid stop floating valve is floated by pressing the drip chamber or the pipeline below the drip chamber. The sixth step, adjust the appropriate flow rate to start infusion.
[0006] The technical problem solved by the present application can also be achieved by the following technical solutions, the gas-permeable water-blocking assembly includes an exhaust pipe body arranged in the drip chamber, the upper end of the exhaust pipe body is connected with an exhaust hole arranged at the top of the drip chamber, and the lower end of the exhaust pipe body is provided with a gas-permeable water-blocking film.
[0007] The technical problem solved by the present application can also be achieved by the following technical solutions, the gas-permeable water-blocking assembly includes an exhaust port opened on the upper side wall of the drip chamber, and a gas-permeable water-blocking film is installed at the exhaust port.
[0008] The technical problem solved by the present application can also be achieved by the following technical solutions, the liquid stop diaphragm is a silica gel sheet, and the area of the liquid stop diaphragm is greater than the area of the drip chamber liquid outlet.
[0009] The technical problem solved by the present application can also be achieved by the following technical solutions, the shell is composed of a liquid stop upper cover and a liquid stop lower cover.
[0010] Compared with the prior art, the hollow shell is provided, so that the buoyancy is large enough; the air-water blocking assembly is provided, so that the air in the drip chamber can be easily discharged, the height of the float valve can be controlled, and clinical use is facilitated. The air in the drip chamber is more easily discharged, liquid can be automatically filled to a suitable liquid level of the drip chamber, the difficulty of clinical operation is greatly reduced, and clinical use is facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 Figure 1 is a structural diagram of a liquid-stopping float valve infusion device with a first air-water blocking assembly; Figure 2 Figure 2 is a structural diagram of a liquid-stopping float valve infusion device with a second air-water blocking assembly; Figure 3 Figure 3 is a structural diagram of a middle drip chamber; Figure 1 Figure 4 Figure 4 is an infusion process diagram of the liquid-stopping float valve infusion device; Figure 1 Figure 5 Figure 5 is an infusion process diagram of a liquid-stopping float valve infusion device without an air-water blocking assembly.
[0012] In the figure: 1-bottle plug penetrator, 2-infusion pipeline, 3-air discharge pipe body, 4-drip chamber, 5-liquid-stopping float valve, 6-flow rate regulator, 7-liquid filter, 8-air-water blocking membrane, 9-air discharge port, 10-air discharge hole, 11-liquid-stopping lower cover, 12-liquid-stopping upper cover, 13-liquid-stopping diaphragm, 14-liquid-stopping base. DETAILED DESCRIPTION
[0013] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.
[0014] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0015] Reference Figures 1-5 An easy-to-vent floating valve stop-fluid infusion set includes an infusion line 2, one end of which is equipped with a bottle stopper puncturer 1. A drip chamber 4, a flow regulator 6, and a medicine filter 7 are sequentially installed along the infusion direction on the infusion line 2. A stop-fluid floating valve is installed inside the drip chamber 4. The stop-fluid floating valve has a hollow shell, which consists of a stop-fluid upper cover 12 and a stop-fluid lower cover 11. A stop-fluid diaphragm 13 for sealing the drip chamber outlet is provided at the bottom of the shell. A stop-fluid base 14 that cooperates with the stop-fluid diaphragm 13 is installed at the outlet of the drip chamber 4. The stop-fluid base 14 has a liquid passage at its center that communicates with the drip chamber outlet. The stop-fluid diaphragm 13 is a silicone sheet, and its area is larger than the area of the drip chamber outlet.
[0016] The dripping bucket 4 is equipped with a breathable and water-blocking assembly that works in conjunction with a stop valve. The breathable and water-blocking assembly has two structures: The first structure includes an exhaust pipe 3 inside the dripping bucket, with its upper end connected to an exhaust hole 10 at the top of the dripping bucket. A breathable and water-blocking membrane 8 is installed at the lower end of the exhaust pipe 3. The assembly is mounted on the dripping bucket lid via a hollow section of the exhaust pipe 3, and the lid has a hole at its upper end to allow the gas inside the dripping bucket to communicate with the outside. The second structure includes an exhaust port 9 on the upper side wall of the dripping bucket, allowing the gas inside the dripping bucket to communicate with the outside. A breathable and water-blocking membrane 8 is installed at the exhaust port 9. This membrane is a breathable and water-blocking / hydrophobic membrane, meaning that gas can pass freely through the membrane, while liquid cannot.
[0017] The infusion process of a stop-fluid float valve infusion set without air-permeable and water-blocking components is as follows: In the first step, the liquid in the infusion container enters the drip chamber through the bottle stopper puncturer, tubing, and drip chamber cap. At this time, because the diaphragm of the stop valve blocks the outlet of the drip chamber and is firmly attached to the stop valve base, the gas in the tubing at the top of the drip chamber cap and the drip chamber cannot be discharged, and the liquid in the infusion container cannot completely enter the drip chamber.
[0018] The second step is to invert the dripping funnel to move the stop valve away from the stop base and make room for the dripping funnel outlet, or to squeeze the dripping funnel to allow the gas in the dripping funnel chamber to rise into the liquid container, making room for the liquid to enter the dripping funnel chamber. By squeezing repeatedly or repositioning the dripping funnel, the liquid level is controlled at a suitable height.
[0019] The third step is to adjust the flow rate to a suitable level and begin the infusion.
[0020] Fourth, when the infusion ends, the stop valve will adhere to the stop base, blocking the outlet of the drip chamber, and the infusion will stop automatically.
[0021] Fifth, after changing the bottle, squeeze the drip chamber or the tubing below the drip chamber repeatedly to make the stop valve float up and continue the infusion.
[0022] According to an embodiment of the present invention, the infusion process of the float valve infusion set with a breathable and water-resistant component is as follows: The first step involves the liquid in the infusion container passing through the stopper puncturer, tubing, and drip chamber cap into the drip chamber.
[0023] The second step involves expelling gas from the upper pipe of the dripping funnel cap and the dripping funnel cavity through the venting and water-blocking assembly until the liquid level blocks the assembly. Squeezing the dripping funnel or the pipe below it causes the stop valve to float upwards.
[0024] The third step is to adjust the flow rate to a suitable level and begin the infusion.
[0025] Fourth, when the infusion ends, the stop valve will adhere to the stop base, blocking the outlet of the drip chamber, and the infusion will stop automatically.
[0026] Fifth, after changing the bottle, the liquid in the infusion container will continue to pass through the venting and water-blocking assembly to expel gas from the upper tubing of the drip chamber cap and the drip chamber cavity, entering the drip chamber and automatically reaching the height of the venting and water-blocking assembly. By squeezing the drip chamber or the tubing below the drip chamber, the stop valve will float upwards.
[0027] Step 6: Adjust the flow rate to a suitable level and begin the infusion.
[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. An easily vented float valve stop infusion set, comprising an infusion line, a stopper puncturer at one end of the infusion line, and a drip chamber, a flow regulator, and a drug solution filter sequentially installed along the infusion direction on the infusion line, characterized in that, A stop valve is installed inside the dripping bucket. The stop valve has a hollow shell. The bottom of the shell is provided with a stop diaphragm for sealing the dripping bucket outlet. A stop base that cooperates with the stop diaphragm is installed at the dripping bucket outlet. The center of the stop base is provided with a liquid passage that communicates with the dripping bucket outlet. The infusion process is as follows: In the first step, the liquid in the infusion container enters the drip chamber through the bottle stopper puncturer, the infusion tubing, and the drip chamber cap. At this time, because the stop valve diaphragm blocks the outlet of the drip chamber and is firmly attached to the stop valve base, the gas in the tubing at the top of the drip chamber cap and the drip chamber cannot be discharged, and the liquid in the infusion container cannot completely enter the drip chamber. The second step is to invert the dripping funnel to remove the stop-fluid diaphragm from the stop-fluid base and make room for the dripping funnel outlet, or to squeeze the dripping funnel to allow the gas in the dripping funnel chamber to rise into the liquid container, making room for the liquid to enter the dripping funnel chamber. By squeezing repeatedly or repositioning the dripping funnel, the liquid level is controlled at a suitable height. The third step is to adjust the appropriate flow rate using a flow regulator and begin the infusion. The fourth step is that when the infusion ends, the stop valve will adhere to the stop base and block the outlet of the drip chamber, and the infusion will stop automatically. Fifth, after changing the bottle, repeat the operation from step two to make the stop valve float up and continue the infusion.
2. The easy-to-vent float valve stop-fluid infusion set according to claim 1, characterized in that, The dripping bucket is equipped with an air-permeable and water-blocking component that cooperates with the stop valve; The infusion process of the infusion set with a stop valve and a water-blocking component is as follows: The first step involves the liquid in the infusion container passing through the stopper puncturer, tubing, and drip chamber cap into the drip chamber cavity; The second step is that the gas in the pipe at the top of the dripping bucket cap and in the dripping bucket cavity will be discharged through the air-permeable and water-blocking component until the liquid level blocks the air-permeable and water-blocking component. By squeezing the dripping bucket or the pipe below the dripping bucket, the stop valve will float up. The third step is to adjust the appropriate flow rate and begin the infusion. The fourth step is that when the infusion ends, the stop valve will adhere to the stop base and block the outlet of the drip chamber, and the infusion will stop automatically. Fifth step: After changing the bottle, the liquid in the infusion container will continue to be discharged through the gas-permeable and water-blocking component, and the gas in the upper end of the drip chamber cap and the drip chamber will be discharged into the drip chamber and automatically reach the height of the gas-permeable and water-blocking component. By squeezing the drip chamber or the pipeline below the drip chamber, the stop valve will float up. Step 6: Adjust the flow rate to a suitable level and begin the infusion.
3. The easy-to-vent float valve stop-fluid infusion set according to claim 2, characterized in that, The breathable and water-blocking component includes an exhaust pipe body disposed inside the dripping bucket, the upper end of the exhaust pipe body being connected to an exhaust hole disposed at the top of the dripping bucket, and the lower end of the exhaust pipe body being fitted with a breathable and water-blocking membrane.
4. The easy-to-vent float valve stop-fluid infusion set according to claim 2, characterized in that, The breathable and water-blocking component includes an exhaust port on the upper side wall of the dripping bucket, and a breathable and water-blocking membrane is installed at the exhaust port.
5. The easy-to-vent float valve stop-fluid infusion set according to claim 1, characterized in that, The liquid-stopping diaphragm is a silicone sheet, and the area of the liquid-stopping diaphragm is larger than the area of the liquid outlet of the dripping funnel.
6. The easy-to-vent float valve stop-fluid infusion set according to claim 1, characterized in that, The housing consists of a liquid-stopping upper cover and a liquid-stopping lower cover.