Ultrasonic nebulizer with high temperature evaporation

Abstract

The application relates to the technical field of medical devices, and discloses an ultrasonic atomization breathing machine with high-temperature evaporation, which comprises a fan assembly, a water tank assembly, a heating assembly and a control assembly, the shell is composed of an upper whole machine shell and a lower whole machine shell, the fan assembly, the water tank assembly and the heating assembly are arranged in the shell and are sequentially communicated through air paths, the water tank assembly comprises an upper water tank shell, a middle water tank shell and a lower water tank shell, and the upper water tank shell and the middle water tank shell are sealingly connected through a water tank sealing ring. The two-stage humidification scheme combining ultrasonic atomization and high-temperature evaporation is adopted, liquid water is dispersed into micron-level small water mist particles through the water tank assembly, and airflow is rapidly heated through heating, compared with the traditional mode of directly heating a large amount of liquid water, only a small amount of water mist particles meeting the humidity requirement need to be heated, the overall preheating time is greatly shortened, the evaporation efficiency is significantly improved, and the target humidification degree can be quickly reached after starting.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an ultrasonic nebulizer with high-temperature evaporation. Background Technology

[0002] Sleep apnea ventilators are commonly used medical devices for treating snoring and obstructive sleep apnea syndrome. They maintain an open upper airway by providing a continuous positive air pressure. To prevent dry gas from damaging the patient's respiratory mucosa, ventilators are usually equipped with a humidification device to warm and humidify the delivered gas.

[0003] Most existing traditional humidification methods for ventilators use heated evaporation, which involves directly heating the liquid water in the tank via a heating plate, causing the water to evaporate and mix into the airflow. This method has the following technical drawbacks: The long preheating time and the extended overall heating of the liquid water result in insufficient water vapor production after startup, impacting the immediate user experience. Low evaporation efficiency, relying solely on natural evaporation from the water surface, limits the amount of water vapor produced per unit time, leading to inadequate gas humidification and the potential for incompletely evaporated liquid water particles to remain in the mixed airflow. Condensation issues in the tubing, where unevaporated liquid water mist condenses upon entering the delivery tubing, affecting airflow stability and posing risks of coughing, bacterial growth, and infection. Furthermore, the water tank material poses safety risks. Water tanks, used for storage and heating, are often made of polymer plastics, which, under prolonged high temperature and humidity, risk aging and decomposition, releasing harmful substances and compromising patient safety. Therefore, we propose an ultrasonic nebulizer with high-temperature evaporation technology. Summary of the Invention

[0004] The purpose of this invention is to provide an ultrasonic nebulizer with high-temperature evaporation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultrasonic nebulizer with high-temperature evaporation, comprising a fan assembly, a water tank assembly, a heating assembly, and a control assembly, wherein the housing is composed of an upper housing and a lower housing; the fan assembly, the water tank assembly, and the heating assembly are all disposed within the housing, and the three are sequentially connected through an air passage; The water tank assembly includes an upper shell, a middle shell, and a lower shell. The upper shell and the middle shell are sealed together by a sealing ring. The interior of the upper shell, middle shell, and lower shell forms a water storage cavity. An ultrasonic atomizing plate is installed inside the water storage cavity. The ultrasonic atomizing plate is used to atomize the liquid water in the water storage cavity into water mist particles and disperse them in the airflow within the water storage cavity. The heating component is installed in the air path and is used to heat the airflow. The fan assembly includes a fan outlet and a fan inlet, the water tank assembly includes a water tank inlet and a water tank outlet, and the heating assembly includes a heating inlet and a heating outlet.

[0006] Optionally, along the airflow direction, the fan outlet is connected to the water tank inlet, and the water tank outlet is connected to the heating inlet; after the airflow is output from the fan assembly, it first enters the water tank assembly and mixes with the water mist particles, and then enters the heating assembly to be heated and evaporated. The heating outlet is connected to the gas output connector, and the gas output connector is connected to the breathing tube.

[0007] Optionally, along the airflow direction, the fan outlet is connected to the water tank inlet, and the water tank outlet is connected to the heating inlet; the airflow is output from the fan assembly and first enters the heating assembly, then enters the water tank assembly to mix with the water mist particles; the water tank outlet is connected to the gas output connector.

[0008] Optional, also includes: A sponge and a sponge clip, wherein the sponge is installed inside the sponge clip and the sponge clip is installed on the side of the lower shell of the whole machine; A right-angle connector and two sets of sealing connectors, wherein the right-angle connector is used to connect the heating assembly and the sealing connectors.

[0009] Optionally, the fan assembly includes a fan and a closed cavity formed by sealing and splicing an upper fan shell and a lower fan shell, with the fan completely housed within the closed cavity; the closed cavity is used for both fan operation noise reduction and airflow stabilization, and the fan is housed within noise-reducing cotton.

[0010] Optionally, the fan assembly is provided with a fan adapter sleeve, the fan adapter sleeve is provided with an air resistance, and the two ends of the air resistance are respectively led out to the air pressure detection path and connected to the flow sensor for detecting the air flow based on the pressure difference; the fan adapter sleeve also leads out to the pressure detection path and connects to the pressure sensor for detecting the output air pressure. An upper shock-absorbing pad is provided between the upper casing of the fan and the fan, and a lower shock-absorbing pad is provided between the lower casing of the fan and the fan.

[0011] Optionally, the heating assembly includes a sleeve, a spiral heating element, and supporting seals at both ends. The supporting seals include an inlet support and an outlet support. The spiral heating element is axially inserted inside the sleeve. The inlet support and outlet support are respectively sleeved on both ends of the spiral heating element and sealed to the inner walls of both ends of the sleeve. The spiral structure of the spiral heating element is used to prolong the residence time of the airflow in the sleeve and improve the heating and evaporation efficiency. The heating inlet is located on the inlet support, and the heating outlet is located on the outlet support. The sleeve and spiral heating element are made of high-temperature resistant metal, and the air inlet support and air outlet support are both made of high-temperature resistant silicone.

[0012] Optionally, the control components include a control circuit board, a touch screen, a power supply interface, an SD card interface, a USB interface, and buttons.

[0013] Optionally, the water tank assembly includes a spring clip and a cover plate, the spring clip being mounted on the upper shell of the water tank and the cover plate being mounted on the bottom of the lower shell of the water tank.

[0014] Compared with the prior art, the present invention provides an ultrasonic nebulizer with high-temperature evaporation, which has the following beneficial effects: 1. This ultrasonic nebulizer with high-temperature evaporation adopts a two-stage humidification scheme that combines ultrasonic nebulization and high-temperature evaporation. The water tank component disperses liquid water into micron-sized fine water mist particles, and the airflow is rapidly heated by heating. Compared with the traditional method of directly heating a large amount of liquid water, this scheme only needs to heat a small amount of water mist particles to meet the humidity requirements. The overall preheating time is greatly shortened, the evaporation efficiency is significantly improved, and the target humidification level can be quickly achieved after the machine is turned on.

[0015] 2. This ultrasonic nebulizer with high-temperature evaporation technology converts water mist particles in the mixed gas into almost complete water vapor after being fully heated by the heating device. This reduces the residue of unevaporated liquid water particles at the source, significantly reduces the amount of condensate formed in the delivery pipeline, and avoids problems such as airflow fluctuations, patient coughing, and bacterial growth caused by condensate, thereby improving the safety and comfort of use.

[0016] 3. This ultrasonic nebulizer with high-temperature evaporation uses high-temperature resistant metal and medical-grade silicone as the core components of its heating device, replacing the traditional method of directly heating with plastic water tanks. This avoids the risk of plastic aging and decomposition releasing harmful substances under high temperature and humidity conditions, ensuring the safety of patients for long-term use.

[0017] 4. This ultrasonic nebulizer with high-temperature evaporation has its fan housed entirely within a closed housing. This closed cavity serves a dual purpose of noise reduction and airflow stabilization, reducing operating noise while ensuring a more stable and uniform airflow, thus enhancing the patient's nighttime experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall device of the present invention without the upper shell; Figure 2 This is a schematic diagram of the overall exploded structure of the device of the present invention; Figure 3 This is a schematic diagram of the exploded structure of the wind turbine assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the fan outlet and fan inlet of the present invention; Figure 5 This is a schematic diagram of the heating assembly of the present invention; Figure 6 This is a schematic diagram of the water tank assembly of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the water tank assembly of the present invention; Figure 8 This is a schematic diagram of the exploded structure of the control component of the present invention; Figure 9 This is a schematic diagram of airflow in Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of airflow in Embodiment 2 of the present invention.

[0019] In the diagram: 1. Fan assembly; 2. Water tank assembly; 3. Heating assembly; 4. Control assembly; 101. Measuring adapter block; 102. Fan upper housing; 103. Upper shock-absorbing pad; 104. Fan; 105. Air resistance; 106. Fan adapter sleeve; 107. Lower shock-absorbing pad; 108. Fan lower housing; 109. Noise-reducing cotton; 110. Fan outlet; 111. Fan inlet; 201. Spring clip; 202. Upper shell of water tank; 203. Sealing ring of water tank; 204. Middle shell of water tank; 205. Lower shell of water tank; 206. Ultrasonic atomizing plate; 207. Cover plate; 208. Power connector; 209. Air inlet of water tank; 210. Air outlet of water tank; 301. Inlet support component; 302. Sleeve; 303. Spiral heating element; 304. Outlet support component; 305. Heating inlet; 306. Heating outlet; 401. USB interface; 402. SD card interface; 403. Power supply interface; 404. Touch screen; 405. Control circuit board; 406. Flow sensor; 407. Pressure sensor; 408. Button 501. Button housing; 502. Gas output connector; 503. Sponge clip; 504. Sponge; 505. Lower housing of the whole machine; 506. Upper housing of the whole machine; 507. Right angle connector; 508. Sealing connector; 509. Breathing tubing. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 like Figures 1-10As shown, the present invention provides a technical solution: an ultrasonic nebulizer with high-temperature evaporation, including a fan assembly 1, a water tank assembly 2, a heating assembly 3 and a control assembly 4, the housing being composed of an upper housing 506 and a lower housing 505; the fan assembly 1, the water tank assembly 2 and the heating assembly 3 are all disposed inside the housing, and the three are connected sequentially through an air passage; The water tank assembly 2 includes an upper shell 202, a middle shell 204, and a lower shell 205. The upper shell 202 and the middle shell 204 are sealed together by a water tank sealing ring 203. A water storage cavity is formed inside the upper shell 202, the middle shell 204, and the lower shell 205. An ultrasonic atomizing plate 206 is provided inside the water storage cavity. The ultrasonic atomizing plate 206 is used to atomize the liquid water in the water storage cavity into water mist particles and disperse them in the airflow in the water storage cavity. The heating assembly 3 is set in the air path and is used to heat the airflow. A power supply connector 208 is provided on the ultrasonic atomizing plate 206. The fan assembly 1 includes a fan outlet 110 and a fan inlet 111, the water tank assembly 2 includes a water tank inlet 209 and a water tank outlet 210, and the heating assembly 3 includes a heating inlet 305 and a heating outlet 306. Along the airflow direction, the fan outlet 110 is connected to the water tank inlet 209, and the water tank outlet 210 is connected to the heating inlet 305. After being output from the fan assembly 1, the airflow first enters the water tank assembly 2 and mixes with the water mist particles, and then enters the heating assembly 3 to be heated and evaporated.

[0022] The fan assembly 1 includes a fan 104 and a closed cavity formed by sealing and splicing an upper fan housing 102 and a lower fan housing 108. The fan 104 is completely housed within the closed cavity. The closed cavity is used for noise reduction during the operation of the fan 104 and for stabilizing airflow. The fan 104 is housed inside a noise-reducing cotton 109, which is installed inside the lower fan housing 108. A measuring adapter block 101 is detachably installed on the upper fan housing 102. An upper shock-absorbing pad 103 is provided between the upper fan housing 102 and the fan 104, and a lower shock-absorbing pad 107 is provided between the lower fan housing 108 and the fan 104.

[0023] The fan assembly 1 is provided with a fan adapter sleeve 106. The fan adapter sleeve 106 is provided with an air resistance 105. The air resistance 105 has a pressure detection path leading out from both ends and is connected to a flow sensor 406, which is used to detect the air flow based on the pressure difference. The fan adapter sleeve 106 also has a pressure detection path leading out and is connected to a pressure sensor 407, which is used to detect the output air pressure.

[0024] The heating assembly 3 includes a sleeve 302, a spiral heating element 303, and supporting seals at both ends. The supporting seals include an inlet support 301 and an outlet support 304. The spiral heating element 303 is axially inserted inside the sleeve 302. The inlet support 301 and the outlet support 304 are respectively sleeved on both ends of the spiral heating element 303 and sealed to the inner walls of both ends of the sleeve 302. The spiral structure of the spiral heating element 303 is used to prolong the residence time of the airflow in the sleeve 302 and improve the heating and evaporation efficiency. The heating inlet 305 is provided on the inlet support 301, and the heating outlet 306 is provided on the outlet support 304.

[0025] The sleeve 302 and the spiral heating element 303 are made of high-temperature resistant metal material, and the air inlet support 301 and the air outlet support 304 are both made of high-temperature resistant silicone material; the heated air outlet 306 is connected to the gas output connector 502, and the gas output connector 502 is connected to the breathing tube 509.

[0026] It is worth noting that the control component 4 includes a control circuit board 405, a touch screen 404, a power supply interface 403, an SD card interface 402, a USB interface 401, and a button 408; the fan component 1, the water tank component 2, and the heating component 3 are all electrically connected to the control circuit board 405, and the operating parameters are uniformly regulated by the control circuit board 405. The control circuit board 405 is electrically connected to the flow sensor 406 and the pressure sensor 407, respectively.

[0027] The ventilator also includes: a sponge 504 and a sponge clip 503, with the sponge 504 installed inside the sponge clip 503, which is installed on the side of the lower casing 505; a right-angle connector 507 and two sets of sealing connectors 508, the right-angle connector 507 being used to connect the heating element 3 and the sealing connectors 508. A button housing 501 is provided on the upper casing 506, the button housing 501 being adapted to the position of the button 408.

[0028] The water tank assembly 2 includes a spring clip 201 and a cover plate 207. The spring clip 201 is installed on the upper shell 202 of the water tank, and the cover plate 207 is installed at the bottom of the lower shell 205 of the water tank.

[0029] When the whole machine is working, the gas first enters the instrument through the sponge 504, and the sponge 504 filters the gas; then the gas enters the fan assembly 1 through the fan inlet 111, and then the gas flows out through the fan outlet 110.

[0030] During this process, the airflow passes through the air resistance 105. The flow sensor 406 is connected to both ends of the air resistance 105 via the measuring adapter block 101, thereby measuring the output gas flow rate of the fan assembly 1. Similarly, the pressure sensor 407 measures the pressure of the output gas from the fan assembly 1 and feeds it back to the control assembly 4. The gas then enters the water tank assembly 2 through one of the sealed joints 508. The ultrasonic atomizing plate 206 inside the water tank assembly 2 vibrates the liquid water into mist particles, which mix with the gas from the fan assembly 1 inside the water tank assembly 2. The mixed gas then flows out from the water tank outlet 210 and flows sequentially through the other sealed joint 508 and the right-angle joint 507 before entering the heating assembly 3.

[0031] The spiral heating element 303 inside the heating assembly 3 heats the mixed gas to a specified temperature and further evaporates the water mist particles into a gaseous state. At the same time, the gas and water mist can be further and thoroughly mixed inside the assembly. Finally, the gas is output from the heated gas outlet 306 through the gas output connector 502 and delivered to the patient through the breathing tubing 509.

[0032] Example 2 Unlike Embodiment 1, in this embodiment, along the airflow direction, the fan outlet 110 is connected to the water tank inlet 209, and the water tank outlet 210 is connected to the heating inlet 305; the airflow is output from the fan assembly 1 and first enters the heating assembly 3, and then enters the water tank assembly 2 to mix with the water mist particles; the water tank outlet 210 is connected to the gas output connector 502.

[0033] In this embodiment, when the whole machine is working, the gas first enters the instrument through the sponge 504, and the sponge 504 filters the gas; then the gas enters the fan assembly 1 through the fan inlet 111, and then the gas flows out through the fan outlet 110.

[0034] During this process, the airflow passes through the air resistance 105. The flow sensor 406 is connected to both ends of the air resistance 105 via the measuring adapter block 101, thereby measuring the output gas flow rate of the fan assembly 1. Similarly, the pressure sensor 407 measures the pressure of the output gas of the fan assembly 1 and feeds it back to the control assembly 4. The gas then enters the heating assembly 3 through one of the sealed joints 508. The spiral heating element 303 inside the heating assembly 3 heats the mixed gas to a specified temperature.

[0035] The airflow then enters the water tank assembly 2 through another sealing connector 508 and a right-angle connector 507. Inside the water tank assembly 2, the ultrasonic atomizing plate 206 vibrates the liquid water into mist particles, which mix with the heated gas from the heating component 3 inside the water tank assembly 2. The mixed gas then flows out from the water tank outlet 210. Finally, the gas is output from the water tank outlet 210 through the gas output connector 502 and delivered to the patient through the breathing tubing 509.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An ultrasonic nebulizer with high-temperature evaporation, characterized in that, The ultrasonic nebulizer housing includes a fan assembly (1), a water tank assembly (2), a heating assembly (3), and a control assembly (4). The housing of the ultrasonic nebulizer is composed of an upper housing (506) and a lower housing (505). The fan assembly (1), the water tank assembly (2), and the heating assembly (3) are all located inside the housing and are connected sequentially through an air passage. The water tank assembly (2) includes an upper shell (202), a middle shell (204), and a lower shell (205). The upper shell (202) and the middle shell (204) are sealed together by a water tank sealing ring (203). The interior of the upper shell (202), the middle shell (204), and the lower shell (205) forms a water storage cavity. An ultrasonic atomizing plate (206) is provided in the water storage cavity. The ultrasonic atomizing plate (206) is used to atomize the liquid water in the water storage cavity into water mist particles and disperse them in the airflow in the water storage cavity. The heating assembly (3) is set in the air path and is used to heat the airflow. The fan assembly (1) includes a fan outlet (110) and a fan inlet (111), the water tank assembly (2) includes a water tank inlet (209) and a water tank outlet (210), and the heating assembly (3) includes a heating inlet (305) and a heating outlet (306).

2. The ultrasonic nebulizer with high-temperature evaporation according to claim 1, characterized in that, Along the airflow direction, the blower outlet (110) is connected to the water tank inlet (209), and the water tank outlet (210) is connected to the heating inlet (305). After the airflow is output from the blower assembly (1), it first enters the water tank assembly (2) and mixes with the water mist particles, and then enters the heating assembly (3) to be heated and evaporated. The heating outlet (306) is connected to the gas output connector (502), and the gas output connector (502) is connected to the breathing tube (509).

3. The ultrasonic nebulizer with high-temperature evaporation according to claim 1, characterized in that, Along the airflow direction, the blower outlet (110) is connected to the water tank inlet (209), and the water tank outlet (210) is connected to the heating inlet (305); after the airflow is output from the blower assembly (1), it first enters the heating assembly (3), and then enters the water tank assembly (2) to mix with the water mist particles; the water tank outlet (210) is connected to the gas output connector (502).

4. The ultrasonic nebulizer with high-temperature evaporation according to claim 1, characterized in that, Also includes: A sponge (504) and a sponge clip (503), wherein the sponge (504) is installed inside the sponge clip (503), and the sponge clip (503) is installed on the side of the lower shell (505) of the whole machine; A right-angle connector (507) and two sets of sealing connectors (508), wherein the right-angle connector (507) is used to connect the heating assembly (3) and the sealing connectors (508).

5. The ultrasonic nebulizer with high-temperature evaporation according to claim 1, characterized in that, The fan assembly (1) includes a fan (104) and a closed cavity formed by sealing and splicing the upper shell (102) and the lower shell (108) of the fan. The fan (104) is completely housed in the closed cavity. The closed cavity is used for noise reduction during the operation of the fan (104) and for stabilizing the airflow. The fan (104) is set inside the noise reduction cotton (109).

6. The ultrasonic nebulizer with high-temperature evaporation according to claim 5, characterized in that, The fan assembly (1) is provided with a fan adapter sleeve (106), and the fan adapter sleeve (106) is provided with an air resistance (105). The air resistance (105) has air pressure detection paths leading out from both ends and connected to a flow sensor (406) for detecting the air flow based on the pressure difference. The fan adapter sleeve (106) also has a pressure detection path leading out and connected to a pressure sensor (407) for detecting the output air pressure. An upper shock-absorbing pad (103) is provided between the upper casing (102) of the fan and the fan (104), and a lower shock-absorbing pad (107) is provided between the lower casing (108) of the fan and the fan (104).

7. The ultrasonic nebulizer with high-temperature evaporation according to claim 1, characterized in that, The control component (4) includes a control circuit board (405), a touch screen (404), a power supply interface (403), an SD card interface (402), a USB interface (401), and a button (408).

8. The ultrasonic nebulizer with high-temperature evaporation according to claim 1, characterized in that, The water tank assembly (2) includes a spring clip (201) and a cover plate (207). The spring clip (201) is installed on the upper shell (202) of the water tank, and the cover plate (207) is installed at the bottom of the lower shell (205) of the water tank.

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