Infusion monitoring apparatus for intravenous infusion

Abstract

The utility model discloses a kind of infusion monitoring instruments for intravenous infusion, it includes infusion monitoring instrument body, this body is set on infusion pipe drip and upper infusion pipe, the monitoring instrument body is by shell and the control panel being set in shell, locking assembly, clamping assembly, battery are composed, locking assembly, clamping assembly, battery are connected with control panel, and detection device is installed on clamping assembly, feedback is given to control panel by detection device detection, control panel controls locking assembly to lock infusion pipe, battery is powered to control panel and locking assembly. The utility model has many advantages, such as simple and reasonable structure, easy and practical to operate.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology and relates to an infusion monitoring device for intravenous infusion. Background Technology

[0002] Existing infusion monitoring devices have the following shortcomings:

[0003] (1) Insufficient product functionality in the industry:

[0004] 1) Infusion monitoring devices need to address the safety and standardization issues of the infusion process, and three indicators are particularly critical:

[0005] 2) Monitoring and reminding patients of excessively fast or slow infusion rates during the infusion process to prevent excessively fast infusion from increasing the burden on the patient's heart or causing other abnormalities, and excessively slow infusion from resulting in poor drug efficacy;

[0006] 3) After the infusion is completed, turn off the infusion set in time to prevent backflow of blood, alleviate the patient's anxiety and reduce the disruption to the orderly work of medical staff caused by repeated ringing of the bell;

[0007] 4) Medical staff can be informed of abnormal infusion information in a timely manner so as to respond and reduce infusion safety issues and medical disputes.

[0008] (2) Industry technical deficiencies:

[0009] 1) Currently, there are two types of infusion monitoring devices on the market based on drip rate monitoring technology: ① Drip rate detection: Infrared emitters and receivers are used on both sides of the drip chamber to detect the drip rate. A common problem with this type of product is that drip rate detection, fluid shortage detection, fluid shortage lockout, and abnormal reporting to the nurse cannot be integrated into a single product, resulting in a missing core function. Furthermore, the single infrared emitter and receiver method used in most products is prone to inaccuracy due to infusion tubing tilt, failing to provide complete safety monitoring of the infusion process. ② Roughly calculating the drip rate by sensing changes in the weight of the infusion bag using a weighing sensor. This method suffers from inaccuracies due to the inherent limitations of weighing sensors, the potential for weight deviations due to patient movement of the infusion tubing, and the inability of the weighing-based infusion monitor to lock out the drip after infusion completion.

[0010] 2) Currently, there are two types of infusion monitoring devices on the market that use two conductive electrode plates to detect the change in capacitance of the infusion tube after infusion is completed: ① Using infrared detection to detect the lack of fluid in the infusion tube. This method may lead to misjudgment due to differences in the material of the infusion tube.

[0011] (3) Inadequate operation: (The following applies to non-weighing infusion monitoring instruments)

[0012] There are two types of installation methods for infusion monitoring devices in the industry:

[0013] 1) The simplified model with only low fluid alarm requires you to hold one end of the elastic clamping mechanism and place the infusion tube completely inside the slot of the monitor.

[0014] 2) Infusion monitors with drip rate monitoring are generally difficult to install and disassemble, requiring squeezing and pulling of the infusion tubing, making operation difficult;

[0015] 3) Poor compatibility: There are many types of infusion tubing and drip chamber diameters, as well as various drip heights, and conventional monitoring instruments can only be compatible with a very limited range of specifications;

[0016] 4) The infusion monitor requires pressing the start switch to start. If medical staff operate it, it will reduce their work efficiency. If the patient operates it, it will be inconvenient to operate.

[0017] (4) The alarm method is flawed:

[0018] 1) Abnormal information (drip rate, low fluid level, alarm sound) from weighing infusion monitors is generally not shared with patients. Therefore, patients cannot know the current status. If an abnormality occurs, patients cannot know the abnormal status and can only wait for medical staff to handle it, which increases the workload of medical staff.

[0019] 2) Simple monitoring devices with only low fluid alarms will not alarm for abnormal drip rates. When the infusion is completed and low fluid levels occur, the monitoring device will keep alarming, which is a disturbance to some patients who are inconvenient and to patients around them. At the same time, it is difficult to hear the alarm sound from the nurses' station in the inpatient department.

[0020] 3) Some monitoring devices on the market have obstructed observation windows for dripping fluid, which is not conducive to medical staff checking the infusion status;

[0021] 4) Monitoring devices on the market do not have self-sterilization technology and rely more on medical staff to wipe them, which increases the workload of medical staff.

[0022] Therefore, an infusion monitoring device for intravenous infusion was designed to overcome the above problems. Utility Model Content

[0023] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an infusion monitoring device for intravenous infusion that is simple and reasonable in structure and easy to operate.

[0024] This utility model is achieved through the following technical solution: an infusion monitoring device for intravenous infusion, comprising an infusion monitoring device body, which is sleeved on the infusion drip chamber and the upper infusion tube. The monitoring device body consists of a shell and a control board, a locking component, a clamping component, and a battery disposed inside the shell. The locking component, the clamping component, and the battery are all connected to the control board, and a detection device is installed on the clamping component. The detection device detects and provides feedback to the control board, which controls the locking component to lock the infusion tube. The battery supplies power to the control board and the locking component.

[0025] Preferably, the clamping assembly is located in the middle of the housing and consists of an upper infusion tube clamp and a drip chamber cover. The upper infusion tube clamp consists of two semi-circular clamping plates and a connecting shaft. The two semi-circular clamping plates are connected together on one side by a connecting shaft, which is fixed to the drip chamber cover. The other side has a figure-eight shaped guide opening. A spring is fixed to one side of the two figure-eight shaped guide openings on the outside and rear. The other side of the spring extends out and is fixed in the through hole column opened on the front housing. Limiting corners are opened on both sides of the semi-circular clamping plates facing the guide openings. The limiting corners are fixed in the limiting grooves opened on the housing. When the upper infusion tube passes through the guide opening and is inserted into the inside, the clamping plates open and are springed back to the clamping state by the spring.

[0026] Preferably, the drip chamber cover consists of a cover body and an upper infusion tube cover. The upper infusion tube cover is located above the cover body and close to the upper infusion tube clamp. Both are circular and have a notch. The direction of the notch is consistent with the opening of the upper infusion tube clamp. A figure-eight shaped guide sleeve is also provided at the notch. The connecting shaft is fixed on the upper infusion tube cover. A protruding limiting strip is mounted on the cover body. A limiting hole is provided on the control plate. The control plate is mounted on the cover body by inserting into the limiting strip through the limiting hole. Both the upper infusion tube clamp and the cover body are equipped with detection devices.

[0027] Preferably, the detection device consists of a liquid shortage detector installed in the upper infusion tube clamp and a drip rate monitor installed inside the drip chamber cover. The liquid shortage detector is an electrode plate installed on two semi-circular clamps. The electrode plate is made of copper substrate. Liquid shortage detection is achieved by detecting the capacitance difference between the two electrode plates. The drip rate monitor consists of at least one infrared emitting tube and multiple infrared receiving tubes. Whether liquid is dripping is determined by the passage of the dripping liquid between the infrared emitting tube and the infrared receiving tube.

[0028] Preferably, the upper infusion tube clamp has a battery mounting area on one side of the control panel and a locking component mounting area on the other side. The locking component consists of a motor, a motor output spur gear, and a locking tongue. The motor and the motor output spur gear are mounted on the housing via a fixed bracket. One side of the locking tongue meshes with the motor output spur gear. A hook is provided above the locking tongue, which hangs on the top of the control panel as a support and moving guide rail. The locking tongue faces the side of the infusion tube. The motor is controlled by the control panel.

[0029] Preferably, the control board is equipped with a control system, an output system, an input system, and a battery management system. The battery management system is connected to the battery and the switch. The control system is connected to the input system and the output system, and sends commands to the received data. The output system is connected to the latch and the light assembly. The input system is connected to the detection device, and feeds back the detected data to the control system. The light assembly consists of multiple LEDs, which are respectively an observation indicator, a running indicator, and a warning indicator. The observation indicator shows the operating status of the detection device, the running indicator shows the operating status of the entire monitoring device, and the warning indicator shows the locking status of the latch.

[0030] Preferably, the switch is of two types: a non-contact switch and a touch switch. The touch switch is installed on the housing and connected to the control board via a connecting rod. The non-contact switch is a micro switch installed in a through hole on the bottom of the upper infusion tube cover or the side wall of the drip chamber cover. When the drip chamber cover or the upper infusion tube cover covers the drip chamber and the upper infusion tube, touching the micro switch achieves non-contact opening.

[0031] Preferably, the outer shell consists of a front shell and a back shell, wherein the front shell consists of a left front shell and a right front shell, which are respectively installed on the battery mounting area on one side of the upper infusion tube clamp and the locking component mounting area on the other side. The control board is installed on the back shell and fixed by bolts. The front shell and the back shell are fixed by bolts to form a whole.

[0032] Preferably, one infrared emitting tube and four infrared receiving tubes are arranged equidistantly on the opposite side of the infrared emitting tube.

[0033] Preferably, the outer casing is also provided with an alarm sound-through hole and a magnetic charging hole, wherein the alarm sound-through hole is connected to the output system and provides an alarm prompt in case of sudden abnormality, and the magnetic charging hole is connected to the battery.

[0034] The beneficial effects of this utility model are as follows:

[0035] 1. This utility model integrates complete functions such as infusion monitoring, alarm, and locking to ensure the safety of patients during infusion;

[0036] 2. This utility model is compatible with a variety of mainstream infusion sets, including different dripping pot diameters and dripping nozzle heights, which helps patients use it and is also more user-friendly for hospitals in procuring infusion sets.

[0037] 3. The infusion monitoring device of this utility model can be quickly installed and disassembled, improving the work efficiency of medical staff;

[0038] 4. This utility model has a drip rate indicator light above the monitor and running and abnormal indicator lights below it for easy observation by the user;

[0039] 5. The infusion monitoring device of this utility model has an excellent judgment effect on infusion sets in a tilted state;

[0040] 6. The infusion monitoring device of this utility model allows patients and accompanying persons to view the infusion status via mobile phone, and allows medical staff to view the infusion information of multiple patients through multiple channels such as the nurse station screen, desktop Android device, and existing computer, so that both doctors and patients can control the infusion status with peace of mind and in an orderly manner.

[0041] 7. The infusion monitoring device of this utility model contains antibacterial agents, which can reduce the number of harmful bacteria. At the same time, the charging host of this monitoring device has a closed ultraviolet sterilization function, which further achieves the sterilization effect and prevents cross-infection in hospitals.

[0042] Based on the above features, this utility model greatly demonstrates the medical practical technological value of the infusion monitoring device and enhances its core competitiveness in the market. Attached Figure Description

[0043] Figure 1 This is a front structural diagram of the present invention.

[0044] Figure 2 for Figure 1 A schematic diagram of the internal structure.

[0045] Figure 3 This is a schematic diagram of the rear structure of this utility model.

[0046] Figure 4 for Figure 3 A schematic diagram of the internal structure.

[0047] Figure 5 This is a schematic diagram of the structure of the infusion tube clamp in this utility model.

[0048] Figure 6 This is a partial structural diagram of the present invention.

[0049] Figure 7 This is a schematic diagram of the sensorless switch in this utility model.

[0050] Figure 8This is a schematic diagram of the locking component in this utility model. Detailed Implementation

[0051] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0052] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1-4 As shown, an infusion monitoring device for intravenous infusion includes an infusion monitoring body, which is fitted onto the infusion drip chamber 1 and the upper infusion tube 2. The monitoring body consists of a housing 3 and a control board 4, a locking assembly 5, a clamping assembly 6, and a battery 7 disposed within the housing 3. The locking assembly 5, the clamping assembly 6, and the battery 7 are all connected to the control board 4, and a detection device is installed on the clamping assembly 6. The detection device detects and provides feedback to the control board 4, and the control board 4 controls the locking assembly 5 to lock the infusion tube. The battery 7 provides power to the control board 4 and the locking assembly 5.

[0054] The clamping assembly 6 is located in the middle of the outer shell 3 and consists of an upper infusion tube clamp 9 and a drip chamber cover 10. The upper infusion tube clamp 9 consists of two semi-circular clamping plates 8 and a connecting shaft 12. The two semi-circular clamping plates 8 are connected together on one side by a connecting shaft 12, which is fixed to the drip chamber cover 10. The other side has a figure-eight shaped guide port 11. One side of a spring 13 is fixed behind the outside of the two figure-eight shaped guide ports 11. The other side of the spring 13 extends out and is fixed in the through hole post 14 opened on the front of the outer shell 3. Limiting corners 15 are opened on both sides of the semi-circular clamping plates 8 facing the guide ports 11. The limiting corners 15 are locked into the limiting grooves opened on the outer shell 3 for fixation. When the upper infusion tube 2 passes through the guide port 11 and is inserted into the inside, the clamping plates open and spring back to the clamping state by the spring 14.

[0055] The drip chamber cover 10 consists of a cover body 16 and an upper infusion tube cover 17. The upper infusion tube cover 17 is located above the cover body 16 and close to the upper infusion tube clamp 9. Both are circular and have a notch 18. The direction of the notch 18 is consistent with the opening of the upper infusion tube clamp 9. A figure-eight shaped guide sleeve 19 is also provided at the notch 18. The connecting shaft 12 is fixed on the upper infusion tube cover 17. A protruding limiting strip 20 is mounted on the cover body 16. A limiting hole 21 is provided on the control plate 4. The control plate is mounted on the cover body 16 by inserting it into the limiting strip 20 through the limiting hole 21. Both the upper infusion tube clamp 9 and the cover body 16 are equipped with detection devices.

[0056] like Figure 5-8 As shown, the detection device consists of a liquid shortage detector 22 installed in the upper infusion tube clamp 9 and a drip rate monitor 23 installed in the drip chamber cover 10. The liquid shortage detector 22 is an electrode plate installed on two semi-circular clamps 8. The electrode plate is made of copper substrate. Liquid shortage detection is achieved by detecting the capacitance difference between the two electrode plates. The drip rate monitor 23 consists of at least one infrared emitting tube 24 and multiple infrared receiving tubes 25. Whether liquid is dripping is determined by the passage of the dripping liquid between the infrared emitting tube 24 and the infrared receiving tubes 25.

[0057] The upper infusion tube clamp 9 has a battery mounting area 26 on one side of the control board 4 and a locking component mounting area 27 on the other side. The locking component 5 consists of a motor 28, a motor 37, a motor output spur gear 29, and a locking tongue 30. The motor 37 and the motor output spur gear 29 are mounted on the housing 3 via a fixed bracket 47. One side of the locking tongue 30 meshes with the motor output spur gear 29, and a hook 31 is provided above it. The hook 31 hangs on the top of the control board 4 as a support and moving guide rail. The locking tongue 30 faces the infusion tube side. The motor 37 is controlled by the control board 4.

[0058] The control board 4 is equipped with a control system 32, an output system 33, an input system 34, and a battery management system 35. The battery management system 35 is connected to the battery 7 and the switch. The control system 32 is connected to the input system 34 and the output system 33, and sends commands to the received data. The output system 33 is connected to the latch 30 and the light assembly. The input system 34 is connected to the detection device, and feeds back the detected data to the control system 32. The light assembly consists of multiple LEDs 36, which are observation indicator lights, operation indicator lights, and warning indicator lights. The observation indicator lights show the operation status of the detection device, the operation indicator lights show the operation status of the entire monitoring device, and the warning indicator lights show the locking status of the latch.

[0059] The switch consists of two types: a non-contact switch 38 and a touch switch 39. The touch switch 39 is mounted on the outer casing 3 and connected to the control board 4 via a connecting rod 40. The non-contact switch 38 is a microswitch installed in a through hole on the bottom of the upper infusion tube cover 17 or the side wall of the drip chamber cover 10. When the drip chamber cover 10 or the upper infusion tube cover 17 covers the drip chamber and the upper infusion tube, touching the microswitch enables non-contact opening. The outer casing 3 consists of a front casing 41 and a back casing 42. The front casing 41 consists of a left front casing 43 and a right front casing 44, which are respectively mounted on the battery mounting area 26 on one side of the upper infusion tube clamp 9 and the locking component mounting area 27 on the other side. The control board 4 is mounted on the back casing 42 and fixed with bolts. The front casing 41 and the back casing 42 are fixed together with bolts to form a whole.

[0060] One infrared emitting tube 24 and four infrared receiving tubes 25 are arranged equidistantly on opposite sides of the infrared emitting tube. The outer casing 3 is also provided with an alarm sound-transmitting hole 45 and a magnetic charging hole 46. The alarm sound-transmitting hole 45 is connected to the output system 33 and provides an alarm prompt in case of sudden abnormality. The magnetic charging hole 46 is connected to the battery 7.

[0061] The structural and design features of this utility model are as follows:

[0062] This utility model consists of a shell, control board, locking components, clamping components, battery, etc. Its modular design facilitates installation and use, and the design of the locking and clamping components can effectively ensure stability and safety during use.

[0063] This invention can effectively overcome the following problems:

[0064] 1) The monitoring functions during the infusion process are incomplete and have low accuracy;

[0065] 2) The infusion monitoring device has poor compatibility with infusion tubing;

[0066] 3) The installation and removal of the infusion monitoring device is too complicated;

[0067] 4) When there is an infusion abnormality, the patient cannot obtain the abnormal state, resulting in no one to handle the infusion abnormality, or requiring special medical and nursing intervention, which increases the workload of medical and nursing staff.

[0068] 5) The installation of the infusion monitoring device makes it difficult for medical staff and accompanying patients to know the status of the infusion;

[0069] 6) The problem of inconvenient sterilization of infusion monitoring devices.

[0070] The working process of this utility model is as follows:

[0071] 1) Installation method

[0072] Hold the upper end of the IV drip chamber tubing with one hand and the monitor with the other. Apply slight force to guide the IV tubing into the fluid shortage clamp, and then pull down the monitor so that the drip chamber cover inside the monitor fits against the upper end of the IV drip chamber. At this time, the indicator light will flash. Gently release both hands. Now you can monitor any abnormalities in the IV infusion process, including drip rate, stoppage, and fluid shortage. The tubing will automatically lock after the IV infusion is completed.

[0073] (ii) Disassembly method

[0074] Press the unlock switch on the monitor or control it via mobile phone to unlock the monitor. Hold the lower end of the infusion set drip chamber with one hand and the monitor with the other hand. Pull the monitor upwards to expose the drip chamber completely. Then, gently pull the monitor to detach the fluid shortage clamp from the infusion tubing.

[0075] (iii) The working principle is:

[0076] Infusion set drip chambers generally come in two structures: one with a rigid plastic cap on the top surface, and the other with a flexible overall structure.

[0077] The diameter range of the upper part of the drip chamber of mainstream brand infusion sets is 15.5mm~22mm.

[0078] Size compatibility: The blind hole diameter of the drip chamber at the bottom of the infusion monitor of this utility model is 22.5mm, which makes the monitor compatible with infusion sets of various sizes; the blind hole is short and open, which makes it easy to observe the liquid droplets in the drip chamber with the naked eye.

[0079] Seamless power-on: The blind hole end face of the monitor has a bevel design, on which is a micro switch for monitor activation. When the infusion set is a soft plastic drip pot with a rounded end face, the gravity of the monitor allows the bevel of the monitor to fit tightly against the drip pot, triggering the micro switch and achieving seamless power-on. When the infusion set is a hard plastic cap drip pot with a horizontal end face, the horizontal end face triggers the micro switch, achieving seamless power-on.

[0080] The monitor's fluid shortage detection works by detecting the capacitance difference between two electrodes. The electrodes are made of copper and are fixed to clamps. The clamps are connected together by a steel shaft to form an assembly. Each electrode clamp has a torsion spring on one side, and the other side of the torsion spring presses against the monitor's bottom shell, creating an elastic closing force. The clamps and bottom shell have a limit design. When the clamps are closed by the torsion spring force, their front ends are designed with a guide structure to facilitate the insertion of the infusion tube. Once the infusion tube is inserted, the clamps form a wrapping force that conforms to the infusion tube. This structure is compatible with all conventional disposable infusion tubes, effectively detecting capacitance while preventing the infusion tube from easily detaching.

[0081] Infusion set limit: The monitor has a limit mechanism at the top to prevent the infusion tube from detaching from the clamp due to external force, thus preventing the low fluid detection from failing. When locked, it prevents the infusion set from shifting due to the pressure of the locking tongue, which could lead to locking failure.

[0082] Drip rate monitoring: The drip rate detection of the monitor uses one transmitting tube and four receiving tubes to achieve a wider range of drip rate detection. Its effectiveness lies in the fact that when the infusion set is tilted within 20 degrees, the droplet falling range can be sensed by the receiving light, thus achieving accurate detection.

[0083] Operation Instructions: This utility model features a light assembly that allows the indicator light to stay on when the monitor is in operation, and another indicator light to flash as a warning when there is an abnormality in the infusion.

[0084] Drip rate observation indicator: The flashing of the light component is synchronized with the drip rate, making it easy for medical staff and caregivers to check the drip rate status and to intuitively detect abnormalities.

[0085] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An infusion monitoring device for intravenous infusion, comprising an infusion monitoring device body which is fitted to an infusion tube drip chamber and an upper infusion tube, characterized in that: The monitoring device consists of a housing and a control board, locking assembly, clamping assembly, and battery housed within the housing. The locking assembly, clamping assembly, and battery are all connected to the control board. A detection device is installed on the clamping assembly, which sends feedback to the control board. The control board then controls the locking assembly to lock the infusion tube. The battery powers the control board and the locking assembly. The clamping assembly, located in the center of the housing, consists of an upper infusion tube clamp and a drip chamber cover. The upper infusion tube clamp comprises two semi-circular clamping plates and a connecting shaft. One side of the semi-circular clamp is connected by a connecting shaft, which is fixed to the drip chamber cover. The other side has a figure-eight shaped guide port. A spring is fixed to the outside of the two figure-eight shaped guide ports. The other side of the spring extends out and is fixed in the through hole column on the front shell. Limiting corners are opened on both sides of the semi-circular clamp facing the guide port. The limiting corners are fixed in the limiting groove on the shell. When the infusion tube passes through the guide port and is inserted into the inside, the clamp opens and is springed back to the clamped state by the spring.

2. The infusion monitoring system for intravenous infusions according to claim 1, characterized in that The drip chamber cover consists of a chamber cover body and an upper infusion tube cover. The upper infusion tube cover is located above the chamber cover body near the upper infusion tube clamp. Both are circular and have a notch. The direction of the notch is consistent with the opening of the upper infusion tube clamp. A figure-eight shaped guide sleeve is also provided at the notch. The connecting shaft is fixed on the upper infusion tube cover. A protruding limiting strip is mounted on the chamber cover body. A limiting hole is provided on the control plate. The control plate is mounted on the chamber cover body by inserting it into the limiting strip through the limiting hole. Both the upper infusion tube clamp and the chamber cover body are equipped with detection devices.

3. The infusion monitoring system for intravenous infusions as claimed in claim 2, characterized in that The detection device consists of a liquid shortage detector installed in the upper infusion tube clamp and a drip rate monitor installed inside the drip chamber cover. The liquid shortage detector is an electrode plate installed on two semi-circular clamps. The electrode plate is made of copper substrate and the liquid shortage is detected by detecting the capacitance difference between the two electrode plates. The drip rate monitor consists of at least one infrared emitting tube and multiple infrared receiving tubes. The presence of liquid is determined by the passage of the dripping liquid between the infrared emitting tube and the infrared receiving tube.

4. The infusion monitoring system for intravenous infusions according to claim 3, characterized in that The upper infusion tube clamp has a battery mounting area on one side of the control panel and a locking component mounting area on the other side. The locking component consists of a motor, a motor output spur gear, and a locking tongue. The motor and the motor output spur gear are mounted on the housing via a fixed bracket. One side of the locking tongue meshes with the motor output spur gear, and a hook is provided above it. This hook hangs on the top of the control panel as a support and a moving guide rail. The locking tongue faces the side of the infusion tube, and the motor is controlled by the control panel.

5. The infusion monitoring system for intravenous infusions as defined in claim 4, characterized in that The control board is equipped with a control system, an output system, an input system, and a battery management system. The battery management system is connected to the battery and the switch. The control system is connected to the input system and the output system, and sends commands to the received data. The output system is connected to the latch and the light assembly. The input system is connected to the detection device, and feeds back the detected data to the control system. The light assembly consists of multiple LEDs, which are designated as observation indicator, operation indicator, and warning indicator. The observation indicator displays the operating status of the detection device, the operation indicator displays the operating status of the entire monitoring device, and the warning indicator displays the locking status of the latch.

6. The infusion monitoring system for intravenous infusions as defined in claim 5, characterized in that The switch consists of two types: a non-contact switch and a touch switch. The touch switch is mounted on the housing and connected to the control board via a connecting rod. The non-contact switch is a micro switch installed in a through hole on the bottom of the upper infusion tube cover or the side wall of the drip chamber cover. When the drip chamber cover or the upper infusion tube cover covers the drip chamber and the upper infusion tube, touching the micro switch enables non-contact opening.

7. The infusion monitoring system for intravenous infusions as defined in claim 6, characterized in that The outer shell consists of a front shell and a back shell. The front shell is composed of a left front shell and a right front shell, which are respectively installed on the battery mounting area on one side of the upper infusion tube clamp and the locking component mounting area on the other side. The control board is installed on the back shell and fixed by bolts. The front shell and the back shell are fixed by bolts to form a whole.

8. The infusion monitoring system for intravenous infusions according to claim 6, characterized in that The infrared emitter is provided with one infrared emitter and four infrared receivers are provided, which are arranged equidistantly on the opposite side of the infrared emitter.

9. The infusion monitoring system of claim 7, wherein: The outer casing is also provided with an alarm sound-through hole and a magnetic charging hole. The alarm sound-through hole is connected to the output system and provides an alarm prompt in case of sudden abnormality. The magnetic charging hole is connected to the battery.

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