Automatic water filling system for humidifying tank

Abstract

The utility model relates to the field of medical instruments, in particular to an automatic water filling system of a humidifying tank. An automatic water filling system for a humidifying tank comprises the humidifying tank, an air inlet pipe and an air outlet pipe are arranged at the top of the humidifying tank, a heating device is arranged at the bottom of the humidifying tank, the automatic water filling system is characterized by comprising a water filling device and an alarm device, the water filling device comprises a gravity sensor and a plurality of switches, the gravity sensor is placed below the heating device, and the switches are arranged on the water filling device. The switch is installed below the gravity sensor, and the alarm device is electrically connected with the water filling device. The automatic water filling system for the humidifying tank solves the problems that in the prior art, a secondary protection mechanism is lacked, remote monitoring is difficult, and a device is not reliable enough, and has the advantages of being safe, reliable, high in sensitivity, intelligent and automatic.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to an automatic water filling system for a humidification tank. Background Art

[0002] The human airway has the function of heating and humidification, but after the patient's condition is critical and an artificial airway is established, the original heating and humidification function is deprived, and the above-mentioned ventilator humidification tank must be used for heating and humidification to ensure the needs of the human airway. However, the gas source of the ventilator is mostly central compressed air, which has low temperature and humidity. Directly entering the patient's body will cause damage such as water loss and mucosal damage, and may cause the patient's comfort to decrease, reduce the compliance of the ventilator application, and then cause mechanical ventilation failure, and even cause life threats. The ventilator humidification tank is a necessary equipment for the ventilator. It is connected between the ventilator and the patient, and can heat and humidify the air, making the gas inhaled into the patient's body warm and moist, and reducing the stimulation of the cold and dry gas to the respiratory mucosa. At present, the commonly used ventilator humidification tank only has a water level mark line on the tank body to remind medical staff to add water. Therefore, medical staff need to pay attention to the water level frequently and add water in time when the water level is low, which increases the workload of medical staff. At the same time, the humidifier tank of the ventilator is located at a low position and is often blocked by the bed. Therefore, in clinical applications, the humidifier tank of the ventilator cannot actively notify medical staff when the water level is below the low water level mark or even out of water, which may cause human damage due to untimely water filling of the humidifier tank. A Chinese patent document with announcement number CN213527013U discloses a humidifier tank for the ventilator. Provided is a respirator humidification tank, wherein two opposite inner side walls of the humidification tank body are fixedly connected with support columns parallel to the bottom of the humidification tank body, the middle part of the balance rod is hinged to the support column, and the balance rod and the support column are always kept vertical; a humidification bottle is fixedly connected to one end of the balance rod, and a mass is fixedly connected to the other end of the balance rod; a liquid storage box is fixedly connected to the inner top of the tank body, a sluice is provided at the bottom of the liquid storage box close to the side wall of the liquid storage box, a liquid inlet is provided at the side wall of the liquid storage box close to the sluice, the liquid inlet is connected with a liquid inlet pipe, and the liquid outlet of the liquid inlet pipe is arranged just above the humidification bottle; the upper end of the mass is hinged to one end of the lifting part, and the utility model can automatically replenish sterile liquid after the liquid in the tank is consumed, thereby reducing the number of times of manual addition of sterile liquid and improving the work efficiency of medical staff.

[0003] However, the above-mentioned respirator humidifier tank still has the following shortcomings: it lacks a secondary safety device, making it difficult to ensure the safety of the system. In medical equipment, especially equipment that involves the lives of patients, a multi-level safety mechanism is often required to prevent possible failures or accidents. Because its sluice device is unreliable in controlling whether to add water, it is easy to cause too much or too little water, which can lead to medical accidents; and the above-mentioned device lacks remote monitoring function. When a system error occurs, the problem can only be discovered through personnel inspections, which can easily endanger the patient's life. Utility Model Content

[0004] The purpose of the present invention is to solve the problems of the prior art lacking a secondary protection mechanism, being difficult to remotely monitor and having unreliable devices, and to provide an automatic water filling system for a humidification tank, which has the advantages of safety, reliability, high sensitivity, intelligence and automation.

[0005] The present invention is achieved through the following technical solutions:

[0006] A humidification tank automatic watering system comprises a humidification tank, wherein an air inlet pipe, an air outlet pipe and a water inlet pipe are arranged on the top of the humidification tank, and a heating device is arranged on the bottom. The system is characterized in that it comprises: a watering device and an alarm device, wherein the watering device comprises a gravity sensor and a plurality of switches, wherein the gravity sensor is placed below the heating device, the switch is installed below the gravity sensor, and the alarm device is electrically connected to the watering device.

[0007] The advantage of an automatic watering system for a humidification tank is that the system realizes comprehensive humidification tank management by integrating a watering device and an alarm device. The watering device ensures that the humidification tank is replenished with water in time, while the alarm device monitors the water level through a gravity sensor and a switch and provides an alarm, effectively preventing water level abnormalities.

[0008] Preferably, the bottom surface of the gravity sensor is larger than the bottom surface of the heating device, the heating device fits tightly to the center of the gravity sensor, a plurality of switches are evenly fixed on the bottom surface of the gravity sensor, and the switch includes a boss and a spring-type switch structure.

[0009] The advantage of this design is that the bottom surface of the gravity sensor is larger than the bottom surface of the heating device, and they fit closely together, ensuring high sensitivity detection of water level changes. The uniform distribution of switches further enhances the reliability of the system, improves the accurate monitoring of water level changes, and prevents the humidification tank from tipping over.

[0010] Preferably, the water inlet pipe is a hose with a bend, a water stop clamp is fixed above the bend, and the gravity sensor and the switch both electrically control the water stop clamp.

[0011] The advantage of this design is that the use of a hose and a bending design makes it easier to stop water with the water stop pliers. The bending design reduces the impact of objects such as the water inlet pipe body on the detection quality of the gravity sensor. At the same time, through the electrical control of the water stop pliers, precise control of the water inlet pipe is achieved, thereby improving the stability of the system.

[0012] Preferably, a microcontroller is provided in the water-stop pliers, and the water-stop pliers are controlled by comparing preset data with data received from the gravity sensor and the switch.

[0013] The advantage of this design is that a microcontroller is embedded in the water stop clamp, and intelligent control of the water flow is achieved by using a gravity sensor as the first line of insurance and a switch as the second line of insurance. The microcontroller compares the preset data with the actual data to ensure the accuracy of the water level by controlling the opening and closing of the water stop clamp.

[0014] Preferably, the alarm device comprises a display panel, an audible and visual alarm device and a processor, the display panel displays information data, the processor connects the display panel and the audible and visual alarm device, and the audible and visual alarm device is located on the display panel.

[0015] The advantage of this design is that the alarm device not only includes a display panel and an audible and visual alarm device, but also a processor connecting various components. The display panel provides information data, and the processor issues timely alarms through the audible and visual alarm device, comprehensively monitoring the status of the humidification tank to ensure that timely measures are taken.

[0016] Preferably, a detection device is provided at the air outlet pipe, the detection device comprises a temperature detector and a humidity detector, and the lower part of the detection device in contact with the air outlet pipe is conical.

[0017] The advantage of this design is that a temperature detector and a humidity detector are set at the outlet pipe, so that the system can monitor the environmental conditions in the outlet pipe. The conical design helps to connect with the outlet pipe, improve the accuracy of detection, and ensure that the humidification effect is more refined and controllable.

[0018] Preferably, the processor is communicatively connected with the gravity sensor, the microcontroller and the detection device in the irrigation device through a communication module.

[0019] The advantage of this design is that the processor can communicate with the gravity sensor, microcontroller and detection device in real time through the communication module. This collaborative work ensures the efficient coordination of the system components and improves the response speed and accuracy of the entire system.

[0020] Preferably, the microcontroller controls the operation of the heating device according to the temperature and humidity data.

[0021] The beneficial effects of the present invention are:

[0022] 1. High safety and reliability: The system ensures comprehensive management of the humidification tank through integrated watering devices and alarm devices. The watering device is responsible for timely replenishment of water to prevent the humidification tank from losing its effect due to lack of water. The alarm device monitors the water level through the gravity sensor as the first layer of insurance and the switch as the second layer of insurance, provides an alarm, and effectively prevents water level abnormalities. This design increases the reliability of the system, enabling it to respond to potential problems in a timely manner, thereby improving the safety of the system.

[0023] 2. High sensitivity: The gravity sensor is tightly fitted to the humidification tank to ensure high-sensitivity detection of water level changes. This design ensures that the system responds quickly to water level changes, enabling it to monitor the status of the humidification tank in a timely and accurate manner.

[0024] 3. Intelligence and automation: The water stop clamp in the system is equipped with a microcontroller, which realizes intelligent control of water flow by working in conjunction with the gravity sensor and switch. The microcontroller compares the preset data with the actual data to ensure the accuracy of the water level by controlling the opening and closing of the water stop clamp. The alarm device includes a display panel and an audible and visual alarm device, and each component is connected through a processor. This intelligent design enables the system to monitor the status of the humidification tank in real time and take corresponding measures when necessary, thereby improving the automation level of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the bottom structure of the gravity sensor of the utility model;

[0027] Figure 3 It is a schematic diagram of the display panel of the utility model.

[0028] Illustration: humidification tank 1, air outlet pipe 2, water inlet pipe 3, air inlet pipe 4, water stop clamp 5, detection device 6, heating device 7, gravity sensor 8, switch 9. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the accompanying drawings. The proportions of the components are not drawn according to the actual proportions, and the proportions and sizes shown in the accompanying drawings should not limit the substantial technical scheme of the present invention. These embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described.

[0030] like Figure 1In one embodiment shown, an automatic watering system for a humidification tank includes a humidification tank 1, wherein the top of the humidification tank 1 is provided with an air inlet pipe 4, an air outlet pipe 2 and a water inlet pipe 3, and the bottom is provided with a heating device 7, a watering device and an alarm device. The watering device is provided with a gravity sensor 8, and the gravity sensor 8 is placed below the heating device 7. The water inlet pipe 3 is a hose and is provided with a bend, and a water stop clamp 5 is fixed above the bend, and the gravity sensor 8 electrically controls the water stop clamp 5. A microcontroller is provided in the water stop clamp 5, and the water stop clamp 5 is controlled by comparing the preset data with the data received from the gravity sensor 8. A detection device 6 is provided at the air outlet pipe 2, and the detection device 6 includes a temperature detector and a humidity detector. The lower part of the detection device 6 that contacts the air outlet pipe 2 is conical. The bottom surface of the gravity sensor 8 is larger than the bottom surface of the heating device 7, and the heating device 7 is tightly fitted with the center of the gravity sensor 8.

[0031] Because the humidifier tank 1 of the ventilator is to humidify the air breathed by the patient, so as to meet the needs of the human airway, but if the liquid level in the humidifier tank 1 is too low, the air humidity in the outlet pipe 2 will be too low, resulting in water loss, mucosal damage and other damages, and may cause the patient's comfort to decrease, reduce the compliance of the ventilator application, and then cause mechanical ventilation failure, and even cause life threat; and if the liquid level in the humidifier tank 1 is too high, it may flow back from the outlet pipe 2 into the patient's body, causing a major medical accident. If the humidifier tank 1 needs to be replenished with water, it is necessary to use sterile liquid to replenish water from the water inlet pipe 3. Because the diameter of the water inlet pipe 3 is only about 2mm, the replenishment time will be very long, which is very inconvenient for the work of medical staff, and it is necessary to wait for a long time to close the replenishment in time to prevent the liquid level from being too high. Therefore, the utility model designs a system that can automatically fill water, detects the change of mass through a weight sensor, and controls the switch 9 of the water stop clamp 5 through a microcontroller to play the role of replenishing water.

[0032] For example, in one embodiment, the utility model is placed in a fixed box, and the fixed box is fixed on the side wall of the ventilator originally used to fix the humidification tank heating device 7. The humidification tank 1 model used is MR370, and its highest water level line requires 300g of sterile water, and the lowest water level line has 100g of sterile water. When the gravity sensor 8 detects that the mass is lower than the water replenishment setting value, the water stop clamp 5 is opened to start replenishing water until the mass is higher than the closing water replenishment setting value or the water replenishment time has exceeded 20 minutes. The closing water replenishment setting value is set to be about 200g higher than the water replenishment setting value.

[0033] The bending design of the water inlet pipe 3 is to facilitate water stopping by the water stop pliers 5 and reduce the influence of objects such as the water inlet pipe 3 on the detection quality of the gravity sensor 8. The detection device 6 is used to check the temperature and humidity of the humidified air in the outlet pipe 2, detect whether it meets the standard, and feed back the result to the alarm device.

[0034] like Figure 2 In one embodiment shown, the switch 9 is installed below the gravity sensor 8, and the switch 9 electrically controls the water stop pliers 5. The microcontroller controls the water stop pliers 5 by comparing preset data with data received from the switch 9. A plurality of switches 9 are evenly fixed on the bottom surface of the gravity sensor 8. In this embodiment, a solution of three switches 9 is adopted, and the switch 9 includes a boss and a spring switch 9 structure.

[0035] The gravity sensor 8 serves as the first line of insurance, while the switch 9 serves as the second line of insurance. The switch 9 adopts a spring structure. When the mass of the upper device is lower than a certain value, the spring rises to a certain height, controls the water stop clamp 5 to start replenishing water, and reports this situation to the alarm device at the same time. Because the set value of the switch 9 is lower than the water replenishment set value of the weight sensor, if the gravity sensor 8 is not triggered and the switch 9 is triggered, it means that there is a problem with one of the two insurances, and manual inspection is required.

[0036] exist Figure 1 In the embodiment shown, it is intended to ensure that the water level in the humidification tank 1 is neither too low to cause insufficient humidity in the airway air, nor too high to cause a medical accident. The system includes a humidification tank 1, an air inlet pipe 4, an air outlet pipe 2, a water inlet pipe 3, a heating device 7, a water filling device and an alarm device. The water inlet pipe 3 of the humidification tank 1 is a hose and is provided with a bend. A water stop clamp 5 is fixed above the bend, and the water stop clamp 5 is controlled by a gravity sensor 8. The gravity sensor 8 is located below the heating device 7. The microcontroller compares the preset data and the sensor data to control the opening and closing of the water stop clamp 5 to achieve automatic water replenishment. The purpose of this design is to ensure that the water level in the humidification tank 1 is within a safe range to avoid failure of the ventilator application or damage to the patient's health. A detection device 6 is provided at the air outlet pipe 2 of the system, including a temperature detector and a humidity detector, for monitoring the quality of the humidified air. The lower part of the detection device 6 in contact with the air outlet pipe 2 is conical to improve the accuracy of the detection. Figure 2 In the embodiment shown, the switch 9 is installed below the gravity sensor 8 and electrically controls the water stop clamp 5. The microcontroller further ensures the stability of the system by comparing the preset data with the switch 9 data. The switch 9 adopts a spring structure as a second insurance. When the mass is lower than the set value, it is triggered and the alarm device is activated. The multi-level safety mechanism of this design is intended to improve the reliability and safety of the system. In general, the automatic water filling system of the humidification tank realizes the intelligent monitoring and control of the water level of the humidification tank 1 through the combined action of the gravity sensor 8 and the switch 9, effectively avoiding the problems that may be caused by too low or too high water level, and providing safer and more reliable support for ventilator applications.

[0037] like Figure 3In one embodiment shown, the alarm device includes a display panel, an audible and visual alarm device, and a processor. The display panel displays position information and data parameters. The processor is connected to the display panel and the audible and visual alarm device. The audible and visual alarm device is located on the display panel. The processor is connected to the gravity sensor 8 in the irrigation device, the microcontroller, and the detection device 6 through a communication module. The data parameters include temperature and humidity data, operating status, and weight data. The processor controls the audible and visual alarm device to sound and light alarm according to the data parameters. The microcontroller controls the operation of the heating device 7 according to the temperature and humidity data.

[0038] The alarm device obtains information from the gravity sensor 8, switch 9, detection device 6 and microcontroller, displays the parameters on the display panel, and determines whether the parameters are higher or lower than the set safety value area through the processor, thereby determining whether to control the sound and light alarm device to alarm.

[0039] For example, in one embodiment, the humidification tank 1 used is of model VADI, and the detected mass is 1230g, which is higher than the set value of 1150g, and it is determined that no water replenishment is needed. However, the detection device 6 detects that the temperature is 33.4°C and the absolute humidity is 31mg / L, which are lower than the temperature setting value of 34°C-41°C, and lower than the absolute humidity setting value of 33 mg / L-44 mg / L. Therefore, an alarm is sounded through the sound and light alarm device to notify medical staff to go and adjust the heating device 7.

[0040] Regarding the quality setting value, it is necessary to consider the impact of the hanging bottle above the water inlet pipe 3 and the airflow during air intake and exhaust, although the bending design reduces some of the impact of the bottle, but the first use still requires manual measurement and setting to ensure the reliability of the data; Regarding the temperature setting value and absolute humidity setting value, they are set based on the medical industry standards of the People's Republic of China, and some will be fine-tuned according to the patient's physical needs.

[0041] The display panel displays the location information and data parameters, and the data parameters include temperature and humidity data, operating status, and weight data. For example, in the present embodiment, the data parameters include location information, weight information, humidity information, model information, and operating status. Through this interface, medical staff can easily query the operating status of the humidification tank 1 of each bed. A page turning key and an audible and visual alarm device are provided below the display panel. If an alarm occurs, the interface automatically jumps to the page where the alarm occurs. The audible and visual alarm device in the lower right corner starts flashing and buzzing. Medical staff can easily confirm the room number and bed number of the alarm point according to the location information, as well as the cause of the alarm (humidity, temperature is lower than the set value or switch 9 triggers water replenishment and gravity display is normal). Such a design greatly reduces the workload of medical staff.

[0042] The main advantage of this alarm device design is that it takes into account the various parameters of the humidification tank 1, and clearly and comprehensively displays the position information and various data parameters, including temperature and humidity, operating status and weight data, through the display panel. Through communication with the gravity sensor 8, the microcontroller and the detection device 6 in the irrigation device, the system can monitor the status of the humidification tank 1 in real time. Using the processor to analyze these data parameters, the system can intelligently determine whether it is in a safe range, and realize timely and intuitive alarm notification through the sound and light alarm device. In addition, the display panel interface in the design is concise and clear, and medical staff can easily query the operation status of the humidification tank 1 of each bed, and quickly locate the room number and bed number of the problem, as well as the specific alarm reason in the case of an alarm. On the whole, this design effectively reduces the workload of medical staff, improves the efficiency of monitoring and managing the humidification tank 1, and ensures the safe operation of medical equipment.

[0043] In summary, the design of the utility model is to ensure that the water level of the humidification tank 1 is neither too low to cause insufficient airway humidity nor too high to cause medical accidents. The system structure includes a humidification tank 1, an air inlet pipe 4, an air outlet pipe 2, a water inlet pipe 3, a heating device 7, a water filling device and an alarm device. The intelligent monitoring of the humidification tank 1 controls the water stop clamp 5 on the water inlet pipe 3 through a gravity sensor 8 to automatically replenish water. The temperature and humidity detection device 6 set at the air outlet pipe 2 improves the accuracy of air quality monitoring. Through the setting of the switch 9 and the spring structure, a multi-level safety mechanism is realized to prevent water level abnormalities and improve system stability. The alarm device integrates a display panel, an audible and visual alarm device and a processor, and monitors the state of the humidification tank 1 in real time by communicating with the gravity sensor 8 and the microcontroller in the water filling device. The system determines whether to trigger the audible and visual alarm based on the temperature and humidity data and weight information to ensure that the medical equipment operates within a safe range. The display panel displays the location information and various data parameters through a clear interface, which greatly simplifies the operation of medical staff, especially in the case of an alarm, to quickly locate the source of the problem. Overall, this design effectively reduces the workload of medical staff, improves the efficiency of monitoring and managing the humidification tank 1, and ensures the safe operation of medical equipment.

[0044] The present invention is not limited to the above-mentioned embodiments. No matter any changes are made in the shape or material composition, any structural design provided by the present invention is a variation of the present invention and should be considered to be within the protection scope of the present invention.

Claims

1. An automatic water filling system for a humidification tank, comprising a humidification tank (1), wherein the top of the humidification tank (1) is provided with an air inlet pipe (4), an air outlet pipe (2) and a water inlet pipe (3), and the bottom is provided with a heating device (7), characterized in that: include: A watering device and an alarm device, the watering device comprising a gravity sensor (8) and a plurality of switches (9), the gravity sensor (8) being placed below the heating device (7), the switch (9) being installed below the gravity sensor (8), the alarm device being electrically connected to the watering device, the water inlet pipe (3) being a hose and provided with a bend, a water stop clamp (5) being fixed above the bend, the gravity sensor (8) and the switch (9) both electrically controlling the water stop clamp (5), the water stop clamp (5) being provided with a microcontroller, and controlling the water stop clamp (5) by comparing preset data with data received from the gravity sensor (8) and the switch (9).

2. The automatic water filling system for a humidification tank according to claim 1, characterized in that: The alarm device comprises a display panel, an audible and visual alarm device and a processor. The display panel displays information data. The processor connects the display panel and the audible and visual alarm device. The audible and visual alarm device is located on the display panel.

3. The automatic water filling system for a humidification tank according to claim 2, characterized in that: The air outlet pipe (2) is provided with a detection device (6), the detection device (6) comprising a temperature detector and a humidity detector, and the lower part of the detection device (6) in contact with the air outlet pipe (2) is in a conical shape.

4. The automatic water filling system for a humidification tank according to claim 1, characterized in that: The bottom surface of the gravity sensor (8) is larger than the bottom surface of the heating device (7); the heating device (7) is tightly fitted to the center of the gravity sensor (8); a plurality of switches (9) are evenly fixed on the bottom surface of the gravity sensor (8); the switches (9) include a boss and a spring-type switch structure.

5. The automatic water filling system for a humidification tank according to claim 3, characterized in that: The processor is communicatively connected with the gravity sensor (8), the microcontroller and the detection device (6) in the irrigation device via a communication module.

6. The automatic water filling system for a humidification tank according to claim 5, characterized in that: The microcontroller controls the operation of the heating device (7).

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