Infusion volume monitoring alarm device

CN224484628UActive Publication Date: 2026-07-14THE FIRST HOSPITAL OF HEBEI MEDICAL UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST HOSPITAL OF HEBEI MEDICAL UNIV
Filing Date
2025-01-03
Publication Date
2026-07-14

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Abstract

The utility model provides a kind of infusion quantity monitoring alarm device, belong to infusion early warning technical field, comprising: substrate, counter, display screen, two intercepting valves and two electromagnets. Battery is installed on substrate and substrate is used to be positioned in the side of drip chamber. Counter is installed on substrate and is set to record the drop number of falling in drip chamber for the drip chamber. Display screen is electrically connected with counter for showing the drop number recorded by counter as flow. Two intercepting valves are oppositely arranged and are hinged to each other;Two clamping ends are used to clamp on both sides of infusion tube. Two electromagnets are respectively fixed on two force ends;In special circumstances, electromagnet receives the electric energy of battery and magnetically same is used to make two clamping ends clamp tightly and intercept infusion tube. The utility model provides a kind of infusion quantity monitoring alarm device can not only realize the display of infusion quantity, and can intercept infusion tube in time, can play certain early warning effect, intelligent degree is higher, safety is stronger.
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Description

Technical Field

[0001] This utility model belongs to the field of infusion early warning technology, and more specifically, it relates to an infusion volume monitoring and alarm device. Background Technology

[0002] Intravenous infusion therapy is a treatment method that delivers medication or blood into the human circulatory system. In some special situations, it is necessary to accurately monitor the amount of fluid being infused, as insufficient or excessive infusion can adversely affect subsequent surgeries and treatments. To address this issue, existing technologies have proposed flow metering devices. These devices use a counter installed on the infusion tubing to record the number of drops falling into the drip chamber, thereby calculating the amount of fluid being infused. While this method achieves accurate measurement, it requires immediate cessation once the designated volume is reached. This necessitates either a caregiver or the patient sealing the infusion line, or promptly informing medical staff. However, both methods are prone to unforeseen circumstances and delays, making it difficult to effectively and promptly stop the infusion, and thus unsafe to use. Utility Model Content

[0003] The purpose of this invention is to provide an infusion volume monitoring and alarm device, which aims to solve the problem of the inability to effectively and timely cut off the infusion tube, making it unsafe to use.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an infusion volume monitoring and alarm device, comprising:

[0005] A substrate on which a battery is mounted and the substrate is positioned on one side of a dripping container;

[0006] A counter, mounted on the substrate and positioned facing the dripping container, is used to record the number of drops falling into the dripping container;

[0007] The display screen, electrically connected to the counter, is used to display the number of drops recorded by the counter as flow rate;

[0008] Two flow-blocking flaps are arranged opposite each other and hinged to each other, and the two flow-blocking flaps are located below the substrate; each flow-blocking flap includes a clamping end and a force-applying end, and the two clamping ends are used to clamp the infusion tube on both sides;

[0009] Two electromagnets are fixed to the two force-applying ends respectively; under special circumstances, the electromagnets receive electrical energy from the battery and have the same magnetism to clamp the two clamping ends and cut off the infusion tube.

[0010] In one possible implementation, the inner wall of one of the clamping ends is provided with two extension pieces, and the inner wall of the other clamping end is provided with a compression piece, with the two extension pieces and the compression piece at different heights to cooperate with the infusion tube.

[0011] In one possible implementation, the two electromagnets are respectively bonded to the sides of the two force-applying ends that are close to each other.

[0012] In one possible implementation, the electromagnet is electrically connected to the battery by a wire, and the throttling valve is positioned below the substrate via the wire.

[0013] In one possible implementation, a torsion spring is installed between the two choke flaps.

[0014] In one possible implementation, a sensor for detecting the presence of liquid in the infusion tube is provided above the substrate.

[0015] In one possible implementation, an extension rod connects the sensor to the substrate.

[0016] In one possible implementation, the sensor is slidably mounted on the extension rod.

[0017] In one possible implementation, a clamp is hinged to the substrate, and the clamp cooperates with the substrate to clamp the infusion tube for positioning the substrate.

[0018] In one possible implementation, an early warning device is mounted on the substrate.

[0019] The beneficial effects of the infusion volume monitoring and alarm device provided by this utility model are as follows: Compared with the prior art, the infusion volume monitoring and alarm device of this utility model has a battery and a counter installed on the base plate, with the counter facing the drip chamber. The counter is electrically connected to the display screen, and two flow-cutting valves are provided below the base plate, which are arranged opposite to each other and hinged together. Two electromagnets are respectively fixed on the two force-applying ends.

[0020] In practical applications, the counter records the number of drops of liquid falling from the drip chamber, and the display screen shows the liquid flow rate based on the drop count. Under normal use, the two clamping ends of the two flow-stopping valves clamp the infusion tube on both sides, allowing the liquid to flow normally. In special circumstances, the battery provides power to the electromagnets. Under the battery's influence, the two electromagnets, with their identical magnetic poles, repel each other. The two electromagnets then pull the two force-applying ends away from the two clamping ends, ultimately clamping the infusion tube and stopping the flow. This application not only displays the infusion volume but also promptly stops the flow in the infusion tube, providing a certain level of early warning. It boasts a high degree of intelligence and strong safety. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of an infusion volume monitoring and alarm device provided in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the choke valve structure provided in an embodiment of the present invention.

[0024] In the diagram: 1. Infusion tube; 2. Drip chamber; 3. Cut-off valve; 301. Clamping end; 302. Force application end; 4. Electromagnet; 5. Extension plate; 6. Squeezing plate; 7. Counter; 8. Clamping plate; 9. Sensor; 10. Extension rod; 11. Substrate; 12. Battery; 13. Display screen; 14. Wire. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Please see Figure 1 and Figure 2 This invention provides a device for monitoring and alarming infusion volume. The device includes: a base plate 11, a counter 7, a display screen 13, two flow-stopping valves 3, and two electromagnets 4. A battery 12 is mounted on the base plate 11, which is positioned on one side of a drip chamber 2. The counter 7 is mounted on the base plate 11 and faces the drip chamber 2 to record the number of drops falling into the drip chamber 2. The display screen 13 is electrically connected to the counter 7 to display the number of drops recorded by the counter 7 as the flow rate. The two flow-stopping valves 3 are arranged opposite each other and hinged together, located below the base plate 11. Each flow-stopping valve 3 includes a clamping end 301 and a force-applying end 302. The two clamping ends 301 are used to clamp the infusion tube 1 on both sides. The two electromagnets 4 are respectively fixed to the two force-applying ends 302. In special cases, the electromagnets 4 receive electrical energy from the battery 12 and have the same magnetism to clamp the two clamping ends 301 and cut off the infusion tube 1.

[0027] The beneficial effects of the infusion volume monitoring and alarm device provided by this utility model are as follows: Compared with the prior art, the infusion volume monitoring and alarm device of this utility model has a battery 12 and a counter 7 installed on the base plate 11, and the counter 7 is positioned facing the drip chamber 2. The counter 7 is electrically connected to the display screen 13, and two flow-blocking valves 3 are provided below the base plate 11. The two flow-blocking valves 3 are arranged opposite each other and hinged to each other. Two electromagnets 4 are respectively fixed on the two force-applying ends 302.

[0028] In practical applications, counter 7 records the number of drops of liquid falling from dripping chamber 2, and display screen 13 displays the liquid flow rate based on the drop count. Under normal use, the two clamping ends 301 of the two flow-stopping valves 3 clamp the infusion tube 1 on both sides, allowing the liquid to flow normally. In special circumstances, battery 12 provides power to electromagnets 4. Under the action of battery 12, the two electromagnets 4, with their identical magnetic poles, repel each other. Under the action of the two electromagnets 4, the two force-applying ends 302 move away from the two clamping ends 301 and move closer, ultimately clamping and stopping the flow in the infusion tube 1. This application not only displays the infusion volume but also promptly stops the flow in the infusion tube 1, providing a certain early warning effect. It has a high degree of intelligence and strong safety.

[0029] For some embodiments of the infusion volume monitoring and alarm device provided in this application, please refer to... Figure 2 One clamping end 301 has two extension pieces 5 on its inner wall, and the other clamping end 301 has a compression piece 6 on its inner wall. The two extension pieces 5 and the compression piece 6 are at different heights to cooperate in cutting off the infusion tube 1. The battery 12 on the substrate 11 has limited power, and the inner diameter of the infusion tube 1 is relatively small. The small inner diameter of the infusion tube 1 also makes the size of the clamping end 301 small, but the infusion tube 1 has a certain resistance to deformation, that is, the infusion tube 1 has a certain structural strength. For this reason, the two clamping ends 301 need to exert sufficient force on the infusion tube 1 to achieve the cutting off. In order to achieve the above effect, extension pieces 5 and compression pieces 6 are respectively provided on the two clamping ends 301. Since the extension pieces 5 and the compression pieces 6 are at different heights, when they approach each other, the contact area is small, so it is easier to squeeze and deform the infusion tube 1.

[0030] For some embodiments of the infusion volume monitoring and alarm device provided in this application, please refer to... Figure 2 Two electromagnets 4 are respectively attached to the sides of the two force-applying ends 302 that are close to each other. To explain in more detail and to enable the two clamping ends 301 to effectively move closer to each other, electromagnets 4 are provided on both force-applying ends 302, and the electromagnets 4 are fixed to the sides of the two force-applying ends 302 that are close to each other. When the electromagnets 4 are energized, the small distance between the two electromagnets 4 allows them to effectively drive the two clamping ends 301 to move.

[0031] For some embodiments of the infusion volume monitoring and alarm device provided in this application, please refer to... Figure 1 An electromagnet 4 and a battery 12 are electrically connected by a wire 14, and the current-cutting valve 3 is positioned below the substrate 11 via the wire 14. A certain distance needs to be maintained between the current-cutting valve 3 and the substrate 11, because the current-cutting valve 3 needs to be able to move relative to the substrate 11, and more importantly, the movement of the current-cutting valve 3 needs to be unaffected by the substrate 11. Therefore, the wire 14 connects the current-cutting valve 3 and the substrate 11, ensuring that the wire 14 does not separate from the substrate 11. The wire 14 needs to have a certain tensile strength to prevent the current-cutting valve 3 from losing its connection with the substrate 11 if it breaks during use.

[0032] In some embodiments of the infusion volume monitoring and alarm device provided in this application, a torsion spring is installed between the two flow-stopping valves 3. During normal use, the infusion tube 1 requires normal fluid flow. At this time, the flow-stopping valves 3 will not compress the infusion tube 1, because excessive compression would cause the infusion tube 1 to narrow, affecting fluid flow. The two electromagnets 4 are required to keep the two force-applying ends 302 of the flow-stopping valves 3 away from each other, while allowing the two clamping ends 301 to move closer together.

[0033] However, it should be noted that the two clamping ends 301 need to be positioned on both sides of the infusion tube 1, because only in this way can the infusion tube 1 be clamped in time under special circumstances. In order to achieve the above technical effect, a torsion spring is connected between the two choke valves 3. The torsion spring can make the two clamping ends 301 of the choke valve 3 exert a certain force on the infusion tube 1, and this force will prevent the clamping ends 301 from slipping off the infusion tube 1.

[0034] For some embodiments of the infusion volume monitoring and alarm device provided in this application, please refer to... Figure 1 A sensor 9 for detecting the presence of liquid in the infusion tube 1 is provided above the substrate 11. To improve the practicality of this application and expand the application scenarios of this device, a sensor 9 is provided above the substrate 11. The sensor 9 can be a photoelectric sensor 9 or a liquid level sensor 9. When there is liquid in the infusion tube 1, the state detected by the sensor 9 is one condition, and when there is no liquid in the infusion tube 1, the state detected by the sensor 9 is another condition, thereby inferring whether there is liquid in the infusion tube 1.

[0035] For some embodiments of the infusion volume monitoring and alarm device provided in this application, please refer to... Figure 1An extension rod 10 connects the sensor 9 to the substrate 11. The substrate 11 is positioned on one side of the dripping chamber 2, while the sensor 9 needs to be close to the infusion tube 1 above the dripping chamber 2. In this case, the sensor 9 needs to be positioned above the substrate 11. For this purpose, an extension rod 10 is fixed on the substrate 11, and the sensor 9 is mounted on the extension rod 10. It should be noted that the bottom end of the extension rod 10 can be ball-jointed to the substrate 11, because only this design can effectively adjust the position of the sensor 9 so that it can approach and contact the infusion tube 1.

[0036] For some embodiments of the infusion volume monitoring and alarm device provided in this application, please refer to... Figure 1 The sensor 9 is slidably mounted on the extension rod 10. Different infusion tubes 1 and drip chambers 2 have different shapes. In order to improve the applicability of this device, that is, regardless of the type of infusion tube 1, the sensor 9 can directly contact the infusion tube 1 above the drip chamber 2, and to achieve the above technical effect, the sensor 9 is mounted and slidably mounted on the extension rod 10. At this time, the spatial position of the sensor 9 can be appropriately adjusted according to the specific situation of the drip chamber 2 and the infusion tube 1.

[0037] For some embodiments of the infusion volume monitoring and alarm device provided in this application, please refer to... Figure 1 A clamping plate 8 is hinged to the substrate 11. The clamping plate 8 works with the substrate 11 to clamp the infusion tube 1 for positioning the substrate 11.

[0038] The substrate 11 needs to be positioned on one side of the dripping bucket 2, and the substrate 11 needs to be positioned first during actual installation in order to position the sensor 9 and clamp the flow-stopping valve 3. Therefore, clamping plates 8 can be hinged on the substrate 11. The clamping plates 8 can be distributed on both sides of the dripping bucket 2, that is, there are two clamping plates 8. The two clamping plates 8 cooperate with the substrate 11 to clamp the infusion tubes 1 on the upper and lower sides of the dripping bucket 2 respectively, thereby ensuring the stability of the substrate 11 relative to the dripping bucket 2.

[0039] For some embodiments of the infusion volume monitoring and alarm device provided in this application, please refer to... Figure 1 An alarm is mounted on the substrate 11. It should be noted that the sensor 9 is linked with the electromagnet 4 through the display screen 13 and the alarm. When the sensor 9 detects that there is no liquid in the infusion tube 1, it feeds the information back to the display screen 13, and at this time the alarm sounds. At the same time, the electromagnet 4 is charged through the PLC and other related devices to cut off the flow in the infusion tube 1.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An infusion volume monitoring and alarm device, characterized in that, include: A substrate on which a battery is mounted and the substrate is positioned on one side of a dripping container; A counter, mounted on the substrate and positioned facing the dripping container, is used to record the number of drops falling into the dripping container; The display screen, electrically connected to the counter, is used to display the number of drops recorded by the counter as flow rate; Two flow-blocking flaps are arranged opposite each other and hinged to each other, and the two flow-blocking flaps are located below the substrate; each flow-blocking flap includes a clamping end and a force-applying end, and the two clamping ends are used to clamp the infusion tube on both sides; Two electromagnets are fixed to the two force-applying ends respectively; when flow closure is required, the electromagnets receive electrical energy from the battery and have the same magnetism to clamp the two clamping ends and close the infusion tube.

2. The infusion volume monitoring and alarm device as described in claim 1, characterized in that, One of the clamping ends has two extension plates on its inner wall, and the other clamping end has a compression plate on its inner wall. The two extension plates and the compression plate are at different heights to cooperate with the infusion tube.

3. The infusion volume monitoring and alarm device as described in claim 1, characterized in that, The two electromagnets are respectively bonded to the sides of the two force-applying ends that are close to each other.

4. The infusion volume monitoring and alarm device as described in claim 1, characterized in that, The electromagnet is electrically connected to the battery by a wire, and the throttling valve is positioned below the substrate through the wire.

5. The infusion volume monitoring and alarm device as described in claim 1, characterized in that, A torsion spring is installed between the two choke valves.

6. The infusion volume monitoring and alarm device as described in claim 1, characterized in that, A sensor for detecting the presence of liquid in the infusion tube is provided above the substrate.

7. The infusion volume monitoring and alarm device as described in claim 6, characterized in that, An extension rod connects the sensor to the substrate.

8. The infusion volume monitoring and alarm device as described in claim 7, characterized in that, The sensor is slidably mounted on the extension rod.

9. The infusion volume monitoring and alarm device as described in claim 1, characterized in that, A clamp is hinged to the substrate, and the clamp works with the substrate to clamp the infusion tube for positioning the substrate.

10. The infusion volume monitoring and alarm device as described in claim 1, characterized in that, An early warning device is installed on the substrate.