Early warning ventilator humidification tank structure

By using a modular humidification tank assembly and an external warning component, the problems of overall replacement and limited functionality in existing technologies are solved. This enables bidirectional liquid level detection and humidity and temperature regulation, reducing costs and improving user comfort.

CN224370413UActive Publication Date: 2026-06-19WUHAN CHILDRENS HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN CHILDRENS HOSPITAL
Filing Date
2025-04-10
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing humidifier humidifier's warning mechanism is an integral structure with the humidifier body. When damaged, the entire unit needs to be replaced, increasing procurement costs. Furthermore, it can only detect the lower limit of the liquid level, not the upper limit, and cannot control the humidification temperature and humidity, nor can it be adjusted according to the patient's condition.

Method used

The humidification tank assembly and external early warning assembly are assembled separately, including upper and lower water level sensors, humidity sensors and temperature control mechanism, which can be replaced and adjusted independently to realize the detection of upper and lower limits of liquid level and control of humidity and temperature.

Benefits of technology

It reduces consumable consumption and costs, enables bidirectional detection of liquid level and regulation of humidity and temperature, and improves user comfort.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224370413U_ABST
    Figure CN224370413U_ABST
Patent Text Reader

Abstract

The utility model discloses a warning type breathing machine humidification jar structure, including external warning subassembly, still set up detachable humidification jar subassembly in external warning subassembly, external warning subassembly includes installation cover, the upper portion of the inner wall of installation cover sets up upper water level inductor, the lower portion of installation cover in sets up lower water level inductor, upper water level inductor and lower water level inductor all are connected with the controller in control panel, the output of controller is connected with bee calling organ, humidification jar subassembly includes jar body, still set up humidity transducer in the top of jar body, both sides of jar body set up positioning block, the corresponding of positioning block and positioning groove, positioning groove sets up in the inner wall both sides of installation cover, still set up temperature control mechanism for heating jar body in base, can assemble and disassemble to this application, can carry out independent overhaul and replacement after damaging, and can carry out the regulation and control to humidity and temperature, satisfy the use demand of different patients.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to the structure of a humidifier tank for a pre-warning ventilator. Background Technology

[0002] The human airway has a warming and humidifying function. However, when critically ill patients are on ventilator-assisted ventilation, the original warming and humidifying function is deprived. The humidifier must humidify the central compressed air before it is delivered into the patient's airway.

[0003] As disclosed in Utility Model Patent Application No. CN219071648U, a humidifier tank water level alarm for a ventilator includes a tank body with an installation port and a fixing mechanism. The installation port contains a trigger alarm mechanism, which includes an alarm seat. Two guide rails are fixedly connected to the bottom of the alarm seat, and a floating block is slidably connected between the two guide rails. A movable magnet is fixedly connected to the bottom of the floating block, and movable seats are slidably connected inside each of the two guide rails. This design, through the trigger alarm mechanism, allows the floating block to move the movable magnet between the two movable seats. The movable magnet generates a repulsive force against the fixed magnet, pushing the movable seats to move. The movable seats then drive a winding wheel to rotate, which in turn winds up a rope, causing the alarm block to move and providing an alarm effect. The alarm triggering process does not require electronic components, extending the service life and improving alarm accuracy.

[0004] The aforementioned technical solution uses an integrated warning mechanism and tank, requiring complete replacement upon damage, which increases procurement costs. Furthermore, it can only detect and warn of the lower limit of the liquid level, not the upper or lower limit, and cannot control the humidification temperature and humidity, nor can it be adjusted according to the patient's condition. Therefore, we propose a warning-type humidification tank structure for ventilators. Utility Model Content

[0005] The purpose of this utility model is to provide a humidifier tank structure for a pre-warning ventilator, in order to solve the problems mentioned in the background art, where the pre-warning mechanism and the tank body are an integral unit, requiring the entire unit to be replaced after damage, which increases procurement costs. In addition, it can only detect and warn of the lower limit of the liquid level, but cannot warn of the upper and lower limits of the liquid level, and cannot control the humidification temperature and humidity, and cannot be adjusted according to the patient's condition.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a humidifier tank structure for an early warning ventilator, including an external early warning component, wherein a detachable humidifier tank component is also provided inside the external early warning component;

[0007] The external early warning component includes a mounting sleeve, which is disposed on one side surface of the base. An upper water level sensor is disposed on the upper part of the inner wall of the mounting sleeve, and a lower water level sensor is disposed on the lower part of the inner wall of the mounting sleeve. Both the upper and lower water level sensors are connected to a controller in the control panel, and the output terminal of the controller is connected to a buzzer.

[0008] The humidification tank assembly includes a tank body, a humidity sensor is also provided at the top of the tank body, and positioning blocks are provided on both sides of the tank body. The positioning blocks correspond to positioning grooves, and the positioning grooves are provided on both sides of the inner wall of the mounting sleeve.

[0009] The base also includes a temperature control mechanism for heating the tank.

[0010] Preferably, the temperature control mechanism includes a heat-insulating shell, which is disposed inside the base. A heat-conducting plate is disposed on the upper side of the heat-insulating shell, and a resistance heating coil is disposed inside the heat-insulating shell to heat the tank.

[0011] Preferably, the resistance heating coil is connected to the temperature control switch on the control panel, which enables the heating temperature to be controlled.

[0012] Preferably, a temperature sensor is also provided in the middle of the heat-conducting plate, and a heat-insulating rubber ring is provided on the outer surface of the temperature sensor, which can detect the heating temperature and improve the safety of the temperature sensor.

[0013] Preferably, the output terminal of the temperature sensor is connected to the input terminal of the controller in the control panel.

[0014] Preferably, a data transmission connector is provided at the bottom of the positioning block. The data transmission connector is connected to the humidity sensor and corresponds to the data input interface. The data input interface is located on one side surface inside the positioning groove and is connected to the controller in the control panel, enabling the data from the humidity sensor to be connected to the controller.

[0015] Preferably, the tank is also provided with a ventilator tubing interface, and a patient end tubing interface is provided on the other side of the tank. The tank is also provided with a water inlet, which can be used to install ventilator tubing and patient end tubing and to inject water.

[0016] Preferably, both the ventilator tubing interface and the patient tubing interface are provided with an inverted elastic conical sleeve, and the inner surface of the elastic conical sleeve is also provided with multiple sets of anti-slip strips, which can quickly fix the ventilator tubing and the patient tubing.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) This application adopts a separate assembly structure of humidification tank assembly and external warning assembly, which can be assembled and disassembled, and can be independently repaired and replaced after damage, thereby reducing consumable consumption and thus reducing costs.

[0019] (2) This application can simultaneously detect and warn of the upper and lower limits of the liquid level to prevent the liquid level from being too high or too low. At the same time, it can regulate humidity and temperature to meet the needs of different patients and improve the comfort of use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the external early warning component in this utility model;

[0022] Figure 3 This is a half-sectional structural diagram of the external early warning component in this utility model;

[0023] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0024] Figure 5 This is a schematic diagram of the humidification tank assembly in this utility model;

[0025] Figure 6 This is a half-sectional view of the ventilator tubing interface in this utility model;

[0026] In the diagram: 1. External warning component; 2. Humidifier assembly; 21. Tank body; 22. Positioning block; 23. Ventilator tubing interface; 24. Water inlet; 25. Patient tubing interface; 26. Humidity sensor; 27. Data transmission connector; 28. Anti-slip strip; 29. ​​Elastic conical sleeve; 101. Upper water level sensor; 102. Positioning groove; 103. Mounting sleeve; 104. Buzzer; 105. Base; 106. Control panel; 107. Observation window; 108. Lower water level sensor; 109. Data input interface; 110. Heat conduction plate; 111. Heat insulation shell; 112. Resistance heating coil; 113. Heat insulation rubber ring; 114. Temperature sensor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution: a humidifier tank structure for an early warning ventilator, wherein a detachable humidifier tank assembly 2 is also provided inside the external early warning assembly 1;

[0029] The external warning component 1 includes a mounting sleeve 103, which is disposed on one side surface of the base 105. An upper water level sensor 101 is disposed on the upper part of the inner wall of the mounting sleeve 103, and a lower water level sensor 108 is disposed on the lower part of the inner wall of the mounting sleeve 103. Both the upper water level sensor 101 and the lower water level sensor 108 are connected to the controller in the control panel 106. The output end of the controller is connected to a buzzer 104, which is disposed on the outer surface of the mounting sleeve 103.

[0030] The humidification tank assembly 2 includes a tank body 21. A humidity sensor 26 is also installed on the top of the tank body 21. Positioning blocks 22 are installed on both sides of the tank body 21. The positioning blocks 22 correspond to the positioning grooves 102. The positioning grooves 102 are installed on both sides of the inner wall of the mounting sleeve 103.

[0031] Before use, the positioning block 22 on the tank 21 can be aligned with the positioning groove 102 and the positioning block 22 can be inserted into the positioning groove 102. Then the tank 21 can be installed in the mounting sleeve 103. At this time, the positioning block 22 moves in the positioning groove 102. After the tank 21 is completely attached to the base 105, the assembly of the tank 21 and the external warning component 1 is completed, and it can be replaced independently.

[0032] During use, the upper water level sensor and the lower water level sensor are attached to the outer surface of the tank 21. The upper water level sensor 101 monitors the level of the injected water. When the water level exceeds the sensing position of the upper water level sensor 101, the buzzer 104 sounds an alarm. At the same time, when the water level is lower than the sensing position of the lower water level sensor 108, the buzzer 104 also sounds an alarm to prevent dry burning caused by low water level.

[0033] At the same time, the humidity sensor 26 is connected to the controller. The humidity sensor 26 detects the humidity inside the tank 21 and transmits the humidity information to the display through the controller. The display is set on the control panel 106. The display shows the humidity, and the humidity can be controlled by the humidity adjustment switch on the control panel 106.

[0034] The upper water level sensor 101 and lower water level sensor 108 in this application are a type of non-contact liquid level sensor, such as an ultrasonic liquid level sensor or a capacitive liquid level sensor, and the humidity sensor 26 is model HS1101.

[0035] Please see Figure 3 as well as Figure 4The base 105 is also equipped with a temperature control mechanism, which includes a heat insulation shell 111. The heat insulation shell 111 is installed inside the base 105, and a heat conduction plate 110 is installed on the upper side of the heat insulation shell 111. A resistance heating coil 112 is also installed inside the heat insulation shell 111, which can heat the tank 21. The resistance heating coil 112 is connected to the temperature control adjustment switch on the control panel 106, which can control the heating temperature. A temperature sensor 114 is also installed in the middle of the heat conduction plate 110. A heat insulation rubber ring 113 is installed on the outer surface of the temperature sensor 114, which can detect the heating temperature and improve the safety of the temperature sensor 114. The output terminal of the temperature sensor 114 is connected to the input terminal of the controller in the control panel 106. The model of the temperature sensor 114 is PT100.

[0036] During use, the heating temperature of the resistance heating coil 112 can be adjusted by the temperature control switch. The resistance heating coil 112 converts electrical energy into heat energy and transfers it to the heat conduction plate 110. The heat conduction plate 110 transfers the heat to the tank 21 and heats the tank 21. At the same time, the temperature sensor 114 detects the heating temperature of the tank 21 and displays the temperature information on the display. When the input heating temperature is reached, the controller controls the resistance heating coil 112 to cut off the power, thereby enabling the regulation of the heating temperature.

[0037] Furthermore, a data transmission connector 27 is provided at the bottom of the positioning block 22. The data transmission connector 27 is connected to the humidity sensor 26 and corresponds to the data input interface 109. The data input interface 109 is located on one side surface inside the positioning groove 102 and is connected to the controller in the control panel 106. This allows the data from the humidity sensor 26 to be connected to the controller. When the tank 21 is assembled with the mounting sleeve 103, the positioning block 22 moves the data transmission connector 27 within the positioning groove 102. After the tank 21 is fully inserted into the mounting sleeve 103, the data transmission connector 27 connects to the data input interface 109, thereby connecting the humidity sensor 26 to the controller.

[0038] The tank 21 is also equipped with a ventilator tubing interface 23, and a patient end tubing interface 25 is also provided on the other side of the tank 21. The tank 21 is also equipped with a water inlet 24, which can be used to install ventilator tubing and patient end tubing and can inject water.

[0039] Please see Figure 6Both the ventilator tubing interface 23 and the patient tubing interface 25 are equipped with inverted elastic conical sleeves 29. Multiple anti-slip strips 28 are also provided on the inner surface of the elastic conical sleeves 29. When the ventilator tubing and the patient tubing are inserted into the ventilator tubing interface 23 and the patient tubing interface 25, the ventilator tubing and the patient tubing squeeze the elastic conical sleeves 29 and cause the elastic conical sleeves 29 to undergo elastic deformation. The elastic conical sleeves 29 can fit tightly with the ventilator tubing and the patient tubing, and can quickly fix the ventilator tubing and the patient tubing.

[0040] Furthermore, the installation sleeve 103 is also equipped with an observation window 107, which can observe the water level inside the tank 21. The base 105 is also equipped with a built-in lithium battery, which is used to power the computer and controller of this device. The controller model is TICC2540.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-alarm ventilator humidification tank structure, characterized in that: It includes an external warning component (1), and the external warning component (1) is further provided with a detachable humidification tank component (2); The external warning component (1) includes a mounting sleeve (103), which is disposed on one side surface of the base (105). An upper water level sensor (101) is disposed on the upper part of the inner wall of the mounting sleeve (103), and a lower water level sensor (108) is disposed on the lower part of the inner wall of the mounting sleeve (103). Both the upper water level sensor (101) and the lower water level sensor (108) are connected to the controller in the control panel (106). The output end of the controller is connected to the buzzer (104). The humidification tank assembly (2) includes a tank body (21), a humidity sensor (26) is also provided on the top of the tank body (21), and positioning blocks (22) are provided on both sides of the tank body (21). The positioning blocks (22) correspond to the positioning grooves (102), and the positioning grooves (102) are provided on both sides of the inner wall of the mounting sleeve (103). The base (105) is also equipped with a temperature control mechanism for heating the tank (21).

2. The pre-alarm ventilator humidification tank structure according to claim 1, characterized in that: The temperature control mechanism includes a heat insulation shell (111), which is disposed inside the base (105). A heat conduction plate (110) is disposed on the upper side of the heat insulation shell (111), and a resistance heating coil (112) is disposed inside the heat insulation shell (111).

3. The pre-alarm ventilator humidification tank structure according to claim 2, characterized in that: The resistance heating coil (112) is connected to the temperature control switch on the control panel (106).

4. The humidifier tank structure for a pre-warning ventilator according to claim 2, characterized in that: A temperature sensor (114) is also provided in the middle of the heat-conducting plate (110), and a heat-insulating rubber ring (113) is provided on the outer surface of the temperature sensor (114).

5. The humidifier tank structure for a pre-warning ventilator according to claim 4, characterized in that: The output of the temperature sensor (114) is connected to the input of the controller in the control panel (106).

6. The humidifier tank structure for a pre-warning ventilator according to claim 1, characterized in that: The bottom of the positioning block (22) is provided with a data transmission connector (27), which is connected to the humidity sensor (26). The data transmission connector (27) corresponds to the data input interface (109), which is located on one side surface inside the positioning groove (102) and is connected to the controller in the control panel (106).

7. The humidifier tank structure for a pre-warning ventilator according to claim 1, characterized in that: The tank (21) is also provided with a ventilator tubing interface (23), and the other side of the tank (21) is also provided with a patient end tubing interface (25). The tank (21) is also provided with a water inlet (24).

8. The humidifier tank structure for a pre-warning ventilator according to claim 7, characterized in that: Both the ventilator tubing interface (23) and the patient tubing interface (25) are provided with inverted elastic conical sleeves (29), and multiple sets of anti-slip strips (28) are also provided on the inner surface of the elastic conical sleeves (29).