A constant temperature disinfection device for electrocardiogram suction ball

Abstract

The application provides a constant-temperature disinfection device for an electrocardiogram suction ball, an action tube of the disinfection device is fixedly arranged in a sealed box, and the top of the action tube is used for supporting the suction ball; the bottom of the disinfection box is communicated with the bottom of the action tube; an exhaust assembly is arranged on the top of the sealed box; a liquid level monitoring assembly is fixedly arranged on the sealed box; a controller is used for acquiring current liquid level information monitored by the liquid level monitoring assembly, and when the current liquid level is greater than or equal to the height of the sealed box, the controller is used for controlling the disinfection box to stop pouring alcohol into the sealed box; the top of the disinfection box is communicated with the inlet end of a heating assembly, the outlet end of the heating assembly is communicated with the bottom of the action tube; the two ends of a reflux pipeline are respectively communicated with the bottom of the sealed box and the top of the disinfection box; when the sealed box is filled with alcohol, the controller is used for controlling the disinfection box to pour nitrogen into the sealed box through the action tube; and the controller is further used for controlling the exhaust assembly to be closed and the reflux pipeline to be opened.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a constant temperature sterilization device for electrocardiogram suction bulbs. Background Technology

[0002] The part of the electrocardiogram (ECG) bulb that comes into contact with the skin is made of metal. When the bulb touches the skin, the skin is cooled and stimulated, especially in winter. This can cause significant discomfort for the patient, leading to an increased heart rate and thus inaccurate ECG results. Furthermore, the use of alcohol swabs for disinfection of the ECG bulb can also cause discomfort due to the volatile nature of alcohol. The resulting cold sensation on the skin can further affect the test results. Summary of the Invention

[0003] In view of this, the present invention proposes a constant temperature sterilization device for electrocardiogram aspirator bulbs to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention proposes a constant temperature sterilization device for electrocardiogram aspirator, comprising: a sealed box, an action tube, a sterilization box, an exhaust assembly, a liquid level monitoring assembly, a controller, a heating assembly, a reflux pipe, a temperature sensor, and a controller; The actuating tube is fixedly installed inside the sealed box. The actuating tube is vertically installed and has an outlet at the top. The top of the actuating tube is used to support the suction ball. The disinfection box is used to hold alcohol and nitrogen. The bottom of the disinfection box is connected to the bottom of the action tube, and is used to inject alcohol into the sealed box through the action tube; The exhaust assembly is located at the top of the sealed box and is used to exhaust the air inside the sealed box; The liquid level monitoring component is fixedly mounted on the sealed box and is used to monitor the liquid level height inside the sealed box; The controller is connected to the liquid level monitoring component. The controller is used to obtain the current liquid level information monitored by the liquid level monitoring component. When the current liquid level is greater than or equal to the height of the sealed box, the controller is used to control the disinfection box to stop pouring alcohol into the sealed box. The top of the disinfection box is connected to the inlet end of the heating component, and the outlet end of the heating component is connected to the bottom of the action tube. The heating component is used to heat the nitrogen gas output by the disinfection box. The two ends of the return pipe are respectively connected to the bottom of the sealed box and the top of the disinfection box; With the sealed box filled with alcohol, the controller is used to control the disinfection box to inject nitrogen gas into the sealed box through the actuating tube; the controller is also used to control the exhaust assembly to close and the return pipe to open; The temperature sensor is installed inside the sealed box to obtain the temperature inside the sealed box. The controller is connected to the temperature sensor. When the temperature inside the sealed box reaches the set temperature, the controller controls the sterilization box to stop injecting nitrogen into the sealed box.

[0005] In one embodiment, at least one action tube is provided, and if the number of action tubes is greater than one, the bottom of each action tube is connected to a common pipe.

[0006] In one embodiment, the common pipeline is connected to a switching valve at one end outside the sealed box, and the switching valve, at the end away from the sealed box, is connected to the disinfection box via a gas pipeline and a liquid pipeline, respectively; the switching valve is connected to the controller. The gas pipe is connected to the upper middle part of the disinfection box, and the liquid pipe is connected to the lower part or bottom of the disinfection box.

[0007] In one embodiment, an air pump is installed near the disinfection box in the gas pipeline, and the air pump is connected to the controller.

[0008] In one embodiment, a water pump is installed on the liquid pipeline, and the water pump is connected to the controller.

[0009] In one embodiment, the heating assembly includes a heating chamber and a heating wire; The heating wire is disposed inside the heating chamber and is used to heat the nitrogen gas flowing through the heating chamber.

[0010] In one embodiment, the venting assembly includes a level pipe and a first valve; The liquid level tube is connected to the side wall of the sealed box, and the top height of the liquid level tube is greater than the height of the sealed box. The first valve is located at the top of the liquid level tube and is connected to the controller.

[0011] In one embodiment, the disinfection box is provided with at least one filter screen inside, the filter screen being located in the upper middle part of the disinfection box.

[0012] In one embodiment, the top sidewall of the disinfection box is connected to a buffer bottle containing nitrogen gas.

[0013] In one embodiment, a second valve is provided on the return pipe, and the second valve is connected to the controller; and / or, The sealed box includes a box body and a top cover. One side of the top cover is rotatably connected to the top of the box body via a hinge. A sealing element is provided at the joint between the box body and the top cover.

[0014] Compared with existing technologies, the advantages of this invention are as follows: First, filling the sealed box with alcohol removes air from the box and disinfects the suction bulb. Then, injecting clean nitrogen gas at a certain temperature into the sealed box dries and heats the suction bulb. Because nitrogen is stable and the mixture of nitrogen and alcohol vapor is less prone to explosion, it offers significantly higher safety compared to air and alcohol vapor mixtures. Compared to drying with hot air from the external environment, the nitrogen in this embodiment is cleaner, preventing recontamination of the disinfected suction bulb. The alcohol can be recycled. The suction bulb is warm after being removed from the sealed box, preventing cold stimulation when it comes into direct contact with the skin and effectively avoiding the impact on the accuracy of electrocardiogram testing caused by increased heart rate due to cold exposure. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. In the drawings: Figure 1 This is a schematic diagram of the constant temperature sterilization device for electrocardiogram suction bulbs in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the action tube in an embodiment of the present invention.

[0016] Reference numerals: 1. Box body; 2. Top cover; 3. Handle; 4. Liquid level pipe; 5. First valve; 6. Fixing plate; 7. Actuating pipe; 8. Suction bulb; 9. Disinfection box; 10. Water pump; 11. Liquid pipeline; 12. Switching valve; 13. Common pipeline; 14. Second valve; 15. Return pipeline; 16. Buffer bottle; 17. Gas pipeline; 18. Heating box body; 19. Heating wire; 20. One-way valve; 21. Air pump; 22. Filter screen; 701. Fixed section; 702. Moving section; 703. Push plate; 704. Through hole; 705. First limiting protrusion; 706. Second limiting protrusion; 707. Fixing plate; 708. First connecting rod; 709. Second connecting rod. Detailed Implementation

[0017] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Reference Figure 1 This embodiment proposes a constant temperature sterilization device for electrocardiogram suction bulbs, including: a sealed box, an action tube 7, a sterilization box 9, an exhaust assembly, a liquid level monitoring assembly, a controller, a heating assembly, a return pipe 15, a temperature sensor, and other structures.

[0019] The action tube 7 is fixedly installed inside the sealed box. The action tube 7 is vertically installed and has an outlet at the top. The top of the action tube 7 is used to support the suction ball 8. When in use, the sealed box is opened and the suction ball 8 is placed on the top of the action tube 7.

[0020] The disinfection chamber 9 is used to hold alcohol and nitrogen. The alcohol is at the bottom of the disinfection chamber 9, and the nitrogen is at the top. Nitrogen is stable and does not react with alcohol.

[0021] The bottom of the disinfection box 9 is connected to the bottom of the action tube 7, which is used to inject alcohol into the sealed box through the action tube 7. The alcohol in the disinfection box 9 is injected into the sealed box through the bottom of the action tube 7, completely soaking the suction bulb 8, replacing the alcohol swab wiping method. The alcohol is injected from the inside of the suction bulb 8 and flows out into the sealed box, which can disinfect the suction bulb 8 in all directions without dead angles.

[0022] The venting assembly is located at the top of the sealed chamber to expel the air inside. As alcohol is poured in, the air inside the sealed chamber is gradually expelled to the outside.

[0023] The liquid level monitoring component is fixedly installed on the sealed box to monitor the liquid level height inside the sealed box. The controller is connected to the liquid level monitoring component and is used to obtain the current liquid level information monitored by the liquid level monitoring component. When the current liquid level is greater than or equal to the height of the sealed box, the controller is used to control the disinfection box 9 to stop pouring alcohol into the sealed box. At this time, the sealed box is completely filled with alcohol and the air is completely discharged to the outside, which can prevent the suction bulb 8 after subsequent disinfection from contacting unclean air.

[0024] The top of the disinfection box 9 is connected to the inlet end of the heating component, and the outlet end of the heating component is connected to the bottom of the action tube 7. The heating component is used to heat the nitrogen gas output from the disinfection box 9. This arrangement allows the nitrogen gas injected into the sealed box to have a certain amount of heat to dry and heat the suction bulb 8.

[0025] The two ends of the return pipe 15 are connected to the bottom of the sealed box and the top of the disinfection box 9, respectively.

[0026] With the sealed chamber filled with alcohol, the controller controls the sterilization chamber 9 to inject nitrogen gas into the sealed chamber through the actuation tube 7; the controller also controls the venting assembly to close and the return pipe 15 to open. Simultaneously, alcohol flows back into the sterilization chamber 9 through the return pipe 15, and the venting assembly closes to prevent outside air from entering the sealed chamber and contaminating the suction bulb 8. This process replaces the alcohol in the sealed chamber with nitrogen gas at a certain temperature.

[0027] A temperature sensor is installed inside the sealed chamber to obtain the internal temperature. A controller is connected to the temperature sensor; when the internal temperature reaches the set temperature, the controller stops the injection of nitrogen into the sterilization chamber 9. The nitrogen gas at a certain temperature dries and heats the suction bulb 8. Since nitrogen and alcohol are stored together in the sterilization chamber 9, the mixture of alcohol vapor and nitrogen kills bacteria in the nitrogen, thus keeping the nitrogen inside the sterilization chamber 9 almost sterile.

[0028] The constant-temperature sterilization device for electrocardiogram (ECG) bulbs in this embodiment first fills the sealed box with alcohol, which serves to expel the air inside the sealed box and sterilize the bulbs 8. Then, clean nitrogen gas at a certain temperature is injected into the sealed box, which serves to dry and heat the bulbs 8. Because nitrogen gas is stable and the mixture of nitrogen and alcohol vapor is not prone to explosion, it has a much higher safety profile compared to a mixture of air and alcohol vapor. Compared to drying with hot air from the external environment, the nitrogen gas in this embodiment is cleaner and can prevent the sterilized bulbs 8 from being recontaminated. The alcohol can be recycled. After the bulbs 8 are removed from the sealed box, they are still warm and will not cause cold stimulation when they come into direct contact with the skin, effectively preventing the patient's heart rate from increasing due to cold exposure, which could affect the accuracy of the ECG test.

[0029] In some embodiments, at least one action pipe 7 is provided. When the number of action pipes 7 is greater than one, the bottom of each action pipe 7 is connected to a common pipe 13, which is horizontally arranged.

[0030] By setting up multiple action tubes 7 and adopting a common bottom pipe 13 design, the processing efficiency is significantly improved. Each action tube 7 can simultaneously support multiple suction bulbs 8 for batch disinfection and temperature control. The horizontal setting of the common pipe 13 ensures that the alcohol output from the disinfection box 9 and the hot nitrogen output from the heating component are evenly distributed to each action tube 7, so that the immersion depth and heating temperature of all suction bulbs 8 are consistent. This avoids incomplete disinfection or insufficient preheating temperature of some suction bulbs due to uneven flow, thus ensuring that there is no cold stimulation when each suction bulb 8 comes into contact with the skin after batch processing.

[0031] In some embodiments, the end of the common pipe 13 located outside the sealed box is connected to a switching valve 12. The end of the switching valve 12 away from the sealed box is connected to the disinfection box 9 via a gas pipe 17 and a liquid pipe 11. The switching valve 12 is connected to a controller. The switching valve 12 has three states. In the first state, neither the gas pipe 17 nor the liquid pipe 11 is connected to the common pipe 13, which can completely cut off the source of alcohol or nitrogen, facilitating standby or maintenance of the device and preventing accidental entry of liquid or gas. In the second state, only the gas pipe 17 is connected to the common pipe 13. In the third state, only the liquid pipe 11 is connected to the common pipe 13. After entering the disinfection stage, the controller switches the switching valve 12 to the third state, where only the liquid pipe 11 and the common pipe 13 are connected. The alcohol in the disinfection box 9 is injected separately into each working tube 7 through the liquid pipe 11 and the common pipe 13, ensuring a pure and stable alcohol flow and fully immersing and disinfecting the suction bulb 8. When heating is required after disinfection, the switching valve 12 is switched to the second state, where only the gas pipeline 17 and the common pipeline 13 are connected. The heated nitrogen gas is separately introduced into the action tube 7 through the gas pipeline 17 and the common pipeline 13. This can both replace the alcohol with hot nitrogen gas to complete the backflow and prevent the alcohol from flowing back into the gas pipeline 17, ensuring that the nitrogen gas path is not contaminated.

[0032] The gas pipe 17 is connected to the upper middle part of the disinfection box 9, and the liquid pipe 11 is connected to the lower part or bottom of the disinfection box 9. This arrangement allows alcohol or nitrogen gas in the disinfection box 9 to be injected into the sealed box as needed.

[0033] In some embodiments, an air pump 21 is installed on the gas pipe 17 near the sterilization chamber 9, and the air pump 21 is connected to the controller. The air pump 21 is used to provide power to allow nitrogen gas to enter the sealed chamber.

[0034] In some embodiments, a water pump 10 is installed on the liquid pipeline 11, and the water pump 10 is connected to the controller. The water pump 10 is used to filter alcohol into a sealed container. Both the air pump 21 and the water pump 10 are connected to the controller. Combined with the state switching of the switching valve 12, precise start-up and shutdown and flow rate regulation of alcohol injection and nitrogen injection can be achieved: in the third state, the water pump 10 operates to inject alcohol, and in the second state, the air pump 21 operates to inject hot nitrogen. The two working fluids are delivered without interference, and the timing control is more precise.

[0035] In some embodiments, the heating assembly includes a heating chamber 18 and a heating wire 19; the heating wire 19 is disposed inside the heating chamber 18 and is used to heat the nitrogen gas flowing through the heating chamber 18. The outer surface of the heating wire 19 is a protective layer to prevent sparks from leaking into the external environment, and to prevent sparks from coming into contact with flammable materials that may be present in the alcohol vapor or nitrogen environment, thereby eliminating the risk of combustion and explosion at the source and making the entire disinfection and heating process safe and controllable.

[0036] In some embodiments, the venting assembly includes a level pipe 4 and a first valve 5; the level pipe 4 communicates with the side wall of the sealed container, and the top height of the level pipe 4 is greater than the height of the sealed container; the first valve 5 is disposed at the top of the level pipe 4 and is connected to a controller. When the sealed container is filled with alcohol, and the alcohol level in the level pipe 4 is higher than the height of the sealed container, the level monitoring assembly receives a signal and sends the signal to the controller. The level monitoring assembly may optionally be an ultrasonic sensor.

[0037] In some embodiments, the sterilization chamber 9 is provided with at least one filter 22, which is located in the upper middle part of the sterilization chamber 9. The filter 22 can filter out impurities in the returned alcohol, while the alcohol will remain on the filter 22, increasing its contact area with nitrogen, which is beneficial for nitrogen sterilization.

[0038] A filter 22 is installed in the upper part of the interior of the disinfection chamber 9, providing a dual purification effect. First, when alcohol flows back from the sealed chamber to the disinfection chamber 9 through the return pipe 15, the filter 22 effectively filters out impurities carried by the alcohol during the soaking of the suction bulb 8, maintaining the cleanliness of the alcohol in the disinfection chamber 9 and ensuring the effectiveness of the alcohol in subsequent disinfection processes. Second, some of the returned alcohol will remain on the filter 22, forming a liquid film or droplets, which significantly increases the contact area between the alcohol and the subsequently introduced nitrogen gas. This allows the nitrogen gas to fully contact and be disinfected when passing through the filter 22, achieving simultaneous disinfection of the circulating nitrogen gas and preventing the introduction of contamination in the closed-loop circulation.

[0039] In some embodiments, a buffer bottle 16 is connected to the top side wall of the disinfection chamber 9, and the buffer bottle 16 contains nitrogen gas. The buffer bottle 16 is used to maintain a stable pressure inside the disinfection chamber 9. When the alcohol or nitrogen gas in the disinfection chamber 9 decreases, the buffer bottle 16 can automatically replenish the gas in the disinfection chamber 9. When the pressure inside the disinfection chamber 9 increases, excess nitrogen gas in the disinfection chamber 9 can enter the buffer bottle 16. The pressure inside the disinfection chamber 9 is always kept stable, the alcohol filling and nitrogen circulation processes are not disturbed by pressure fluctuations, the working fluid delivery flow is uniform, and it is ensured that the suction bulbs 8 in each working tube 7 can be fully immersed in alcohol for disinfection and uniformly heated to the set temperature by constant-temperature hot nitrogen gas.

[0040] In some embodiments, a second valve 14 is provided on the return pipe 15, and the second valve 14 is connected to the controller. A one-way valve 20 is also provided on the gas pipe 17 to prevent gas backflow.

[0041] The sealed box includes a box body 1 and a top cover 2. One side of the top cover 2 is rotatably connected to the top of the box body 1 via a hinge. A sealing element is provided at the joint between the box body 1 and the top cover 2, and a handle 3 is located on the top of the top cover 2. It should be noted that the suction ball is usually connected to a power cord, which is pressed between the box body 1 and the top cover 2. A corresponding groove is provided at the pressing area to accommodate the diameter of the power cord, preventing air or liquid leakage at the point where the top cover 2 presses against the power cord. For the power cord connected to the suction ball 8, a groove adapted to the diameter of the power cord is provided at the point where the box body 1 and the top cover 2 press against the power cord. This effectively accommodates the power cord, preventing excessive compression and damage when the top cover 2 is pressed down. It also fills the gaps where the power cord passes through, preventing air or liquid leakage channels caused by the power cord obstructing the seal.

[0042] In some embodiments, refer to Figure 2 To prevent the suction bulb from being lifted by the impact machine during the rapid filling of alcohol or nitrogen, the actuating tube 7 has a function to prevent the suction bulb from being washed away. Specifically, the actuating tube 7 has a fixed section 701 and a movable section 702. The bottom of the fixed section 701 is connected to the fixed plate 6, which is fixedly connected to the inner wall of the sealing box. The movable section 702 is part of the structure of the actuating tube 7. At least two movable sections 702 are symmetrically arranged. The bottom of the movable section 702 is rotatably connected to the fixed section 701. The movable section 702 can rotate relative to the actuating tube 7 to its inward or outward side.

[0043] The actuating tube 7 is equipped with a pushing mechanism, which includes a push plate 703 and a first connecting rod 708. The push plate 703 is horizontally arranged. The inner wall of the fixed section 701 has a first limiting protrusion 705 and a second limiting protrusion 706. The push plate 703 is located between the first limiting protrusion 705 and the second limiting protrusion 706. The shape of the push plate 703 is adapted to the inner wall of the actuating tube 7. The push plate 703 also has a through hole 704. The top of the push plate 703 has a fixed plate 707. The inner side of the movable section 702 has a second connecting rod 709. The two ends of the first connecting rod 708 are respectively hinged to the second connecting rod 709 and the fixed plate 707. When alcohol or nitrogen is rapidly injected upwards from the bottom of the actuating tube 7, the impact force of the alcohol or nitrogen will push the push plate 703 upwards, which in turn will push the movable section 702 outwards through the fixed plate 707, the first connecting rod 708, and the second connecting rod 709, thereby locking the inner wall of the suction ball and preventing it from falling. The through hole 704 allows alcohol or nitrogen to pass through.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A constant-temperature sterilization device for electrocardiogram (ECG) suction bulbs, characterized in that, include: Sealed box, action tube (7), disinfection box (9), exhaust assembly, liquid level monitoring assembly, controller, heating assembly, return pipe (15), temperature sensor and controller; The action tube (7) is fixedly installed inside the sealed box. The action tube (7) is vertically installed. The top of the action tube (7) has an outlet. The top of the action tube (7) is used to support the suction ball (8). The disinfection box (9) is used to hold alcohol and nitrogen. The bottom of the disinfection box (9) is connected to the bottom of the action tube (7) for injecting alcohol into the sealed box through the action tube (7); The exhaust assembly is located at the top of the sealed box and is used to exhaust the air inside the sealed box; The liquid level monitoring component is fixedly mounted on the sealed box and is used to monitor the liquid level height inside the sealed box; The controller is connected to the liquid level monitoring component. The controller is used to obtain the current liquid level information monitored by the liquid level monitoring component. When the current liquid level is greater than or equal to the height of the sealed box, the controller is used to control the disinfection box (9) to stop pouring alcohol into the sealed box. The top of the disinfection box (9) is connected to the inlet end of the heating component, and the outlet end of the heating component is connected to the bottom of the action tube (7). The heating component is used to heat the nitrogen gas output by the disinfection box (9). The two ends of the return pipe (15) are respectively connected to the bottom of the sealed box and the top of the disinfection box (9); When the sealed box is filled with alcohol, the controller is used to control the disinfection box (9) to inject nitrogen into the sealed box through the action tube (7); the controller is also used to control the exhaust assembly to close and the return pipe (15) to open. The temperature sensor is installed inside the sealed box to obtain the temperature inside the sealed box. The controller is connected to the temperature sensor. When the temperature inside the sealed box reaches the set temperature, the controller controls the disinfection box (9) to stop injecting nitrogen into the sealed box.

2. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 1, characterized in that, At least one of the action pipes (7) is provided. If the number of action pipes (7) is greater than one, the bottom of each action pipe (7) is connected to a common pipe (13).

3. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 2, characterized in that, The common pipe (13) is connected to a switching valve (12) at one end outside the sealed box. The switching valve (12) is connected to the disinfection box (9) at the other end away from the sealed box via a gas pipe (17) and a liquid pipe (11). The switching valve (12) is connected to the controller. The gas pipe (17) is connected to the upper middle part of the disinfection box (9), and the liquid pipe (11) is connected to the lower part or bottom of the disinfection box (9).

4. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 3, characterized in that, An air pump (21) is installed near the disinfection box (9) on the gas pipeline (17), and the air pump (21) is connected to the controller.

5. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 3, characterized in that, A water pump (10) is installed on the liquid pipeline (11), and the water pump (10) is connected to the controller.

6. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 1, characterized in that, The heating assembly includes a heating chamber (18) and a heating wire (19); The heating wire (19) is disposed inside the heating chamber (18) and is used to heat the nitrogen flowing through the heating chamber (18).

7. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 1, characterized in that, The venting assembly includes a level pipe (4) and a first valve (5); The liquid level tube (4) is connected to the side wall of the sealed box, and the top height of the liquid level tube (4) is greater than the height of the sealed box; The first valve (5) is located at the top of the liquid level tube (4) and is connected to the controller.

8. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 1, characterized in that, The disinfection box (9) is equipped with at least one filter (22) inside, and the filter (22) is located in the upper middle part of the disinfection box (9).

9. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 1, characterized in that, The top side wall of the disinfection box (9) is connected to a buffer bottle (16), which contains nitrogen gas.

10. The constant temperature sterilization device for electrocardiogram suction bulbs according to claim 1, characterized in that, A second valve (14) is provided on the return pipe (15), and the second valve (14) is connected to the controller; and / or, The sealed box includes a box body (1) and a top cover (2). One side of the top cover (2) is rotatably connected to the top of the box body (1) via a hinge. A sealing element is provided at the joint between the box body (1) and the top cover (2).

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