A respiratory tract nebulization treatment circuit device with condensate collection structure

Abstract

The application discloses a respiratory tract atomization treatment circuit device with condensate collecting structure and belongs to the technical field of atomization treatment devices, which comprises a host computer, a liquid medicine cup, a liquid storage box, an ultrasonic generator, a corrugated hose and a face mask, the liquid storage box is arranged in the liquid medicine cup, and the ultrasonic generator is arranged in the liquid storage box, characterized in that: a first box body in communication with the liquid storage box and a second box body in communication with the first box body through a partition plate opening are arranged in the host computer, a floating ball in the first box body is connected with a push rod, one end of the push rod is abutted with a swing arm swinging around a movable shaft, the other end of the swing arm is abutted with a lifting rod, the lifting rod penetrates through the partition plate and is connected with a shielding plate opening and closing an opening, an elastic reset piece is arranged between the lifting rod and the partition plate, and the movable shaft is transmissionally connected with a potentiometer assembly, so as to adjust parameters of the ultrasonic generator with liquid level change. The application is helpful to reduce manual frequent liquid supplement operation, improve atomization treatment continuity and reduce condensate retention in the circuit.

Description

Technical Field

[0001] This invention belongs to the field of nebulizer technology, specifically relating to a respiratory tract nebulizer circuit device with a condensate collection structure. Background Technology

[0002] Nebulized respiratory devices are classified as Class II medical devices. They use physical technology to convert liquid drugs into tiny particles of 1-5μm, which are then inhaled through the respiratory tract and delivered directly to the lesion. They have the advantages of rapid onset of action, high local drug concentration, and minimal systemic side effects.

[0003] During respiratory nebulization, ultrasonic nebulizers are also used for respiratory therapy. The principle of ultrasonic nebulization is as follows: The ultrasonic generator outputs a high-frequency electrical signal, which drives the piezoelectric ceramic transducer to produce an inverse piezoelectric effect, resulting in high-frequency mechanical resonance. The high-frequency vibration is transmitted to the drug solution through the sound-permeable membrane or coupled water layer, generating cavitation and surface tension waves at the liquid-gas interface. When the sound energy overcomes the surface tension and inertia of the liquid, it "tears" the drug solution into fine droplets.

[0004] During ultrasonic nebulization, the medication needs to be replenished periodically to ensure stable operation. Some existing devices use level detection and alarm components to indicate when to replenish the medication, but this increases the number of components and control complexity. These devices are structurally complex and cannot replenish large amounts of medication at once, hindering long-term safe use. Furthermore, since the nebulizer is often located at the bottom of the medication container, its vibration amplitude and frequency cannot be adjusted to suit different medication volumes, affecting the nebulization effect and hindering effective patient treatment. Additionally, when the nebulized mist cools, the gaseous water vapor loses heat and condenses into liquid. If this condensate remains in the pipes and mask's dead corners for extended periods, the warm, humid environment can breed bacteria and fungi, leading to secondary infections and hindering recovery. Summary of the Invention

[0005] The purpose of this invention is to provide a respiratory tract nebulization therapy circuit device with a condensate collection structure to solve the problems of frequent manual fluid replenishment, insufficient stability of the fluid replenishment structure, and easy retention of condensate in the drug cup, corrugated hose and mask connection area in the existing ultrasonic nebulization therapy, which makes it inconvenient to guide and collect the condensate. At the same time, when the liquid level in the reservoir changes, the driving parameters of the ultrasonic generator are adjusted by an electromechanical adjustment structure linked to the liquid level to improve the nebulization stability under different liquid level conditions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A respiratory nebulization therapy circuit device with a condensate collection structure includes a main unit, a medicine cup, a reservoir, an ultrasonic generator, a corrugated hose, and a mask. The reservoir is located inside the medicine cup, and the ultrasonic generator is located inside the reservoir. The main unit is characterized by having a first chamber connected to the reservoir and a second chamber connected through an opening in a partition. A float in the first chamber is connected to a push rod. One end of the push rod abuts against a swing arm that swings around a movable shaft, and the other end of the swing arm abuts against a lifting rod. The lifting rod passes through a partition and is connected to a baffle plate that opens and closes the opening. An elastic reset element is provided between the lifting rod and the partition. The movable shaft is connected to a potentiometer assembly to adjust the parameters of the ultrasonic generator according to changes in the liquid level. The first tank is connected to the lower part of the storage box through a liquid level connecting pipe so that the liquid level in the first tank rises and falls synchronously with the working liquid level in the storage box. The second tank forms a replenishment storage cavity located on one side of the first tank. The lower part of the partition is provided with a replenishment opening. A valve seat that cooperates with the baffle plate is formed around the replenishment opening. The baffle plate is located at the replenishment opening and can press against or move away from the valve seat under the action of the lifting rod, thereby cutting off or opening the replenishment passage from the second tank to the first tank and then to the storage box. A collection hood is installed between the top of the medicine cup and the corrugated hose. The corrugated hose is connected to a collection pipe near the collection hood, and the collection pipe is connected to a collection bag.

[0007] Furthermore, the end of the swing arm away from the push rod is movably abutted against the upper end of the lifting rod. The bottom of the lifting rod passes through the partition and extends to the baffle plate. Both ends of the outer wall of the baffle plate are provided with sealing gaskets. The partition plate is provided with a movable cavity that cooperates with the lifting rod. Both ends of the outer wall of the lifting rod are provided with fixing blocks. The fixing blocks are slidably connected in the movable cavity, and the fixing blocks are connected to the partition plate by a compression spring.

[0008] Furthermore, the potentiometer assembly includes a first bevel gear connected to the movable shaft, a second bevel gear meshing with the first bevel gear and fixed on a metal lead screw, a slide seat helically driven on the metal lead screw, and a conductive brush disposed on the slide seat and sliding along the length of the resistance wire.

[0009] Furthermore, the potentiometer assembly also includes a housing, the inner wall of which is provided with a strip groove along its length to slide with the slide block, the two ends of the resistance wire are connected to a reference voltage terminal and a ground terminal, the conductive brush is a sliding output terminal, the metal rod is insulated from the resistance wire and serves only as a mechanical transmission component, the conductive brush is electrically connected to the adjustment terminal of the ultrasonic generator as the sliding output terminal of the potentiometer assembly, and the ultrasonic generator drives the piezoelectric ceramic transducer.

[0010] Furthermore, the distance from the contact point between the swing arm and the push rod to the center of the movable shaft forms a power arm, and the distance from the contact point between the swing arm and the lifting rod to the center of the movable shaft forms a resistance arm, with the length of the power arm being greater than the length of the resistance arm.

[0011] Furthermore, the top of the liquid storage box is provided with an embedded annular reflux plate, the annular reflux plate is provided with annularly distributed through holes, a conical reflux plate is provided above the annular reflux plate, the guide inclined surface of the conical reflux plate is aligned with the through holes, a reflux pipe is connected between the conical reflux plate and the bottom of the liquid storage box, and a first reflux guide groove communicating with the liquid storage box is provided on the inner wall of the reflux pipe.

[0012] Furthermore, a baffle plate with limiting support is installed on the top of the liquid storage box and is located on the inner wall of the liquid cup. A second reflux guide channel is provided through the baffle plate. One end of the second reflux guide channel is attached to the inner wall of the liquid cup, and the other end extends into the liquid storage box.

[0013] Furthermore, the corrugated hose is provided with a liquid guide hole at the lowest generatrix on the lower side near the concentrator. The inlet of the collection pipe is connected to the liquid guide hole and is inclined downward relative to the main airflow direction of the corrugated hose. The inlet of the collection pipe is provided with a liquid guide lip that extends into the liquid film flow path of the inner wall of the corrugated hose, and the liquid guide lip does not block the main airflow channel of the corrugated hose. The collection bag is a sealed and detachable liquid collection component. After disassembly, the condensate therein does not flow back to the corrugated hose and the mask.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) In this invention, a large amount of liquid medicine can be pre-stored in the second box. Relying on the lever-type liquid level self-sealing structure composed of float, push rod, swing arm, lifting rod and baffle, the liquid replenishment and opening can be automatically completed according to the liquid level height inside the storage box. There is no need to add an independent liquid level sensor and sound and light alarm components, which simplifies the overall structure. Sufficient liquid medicine can be stored at one time to support long-term uninterrupted nebulization treatment. There is no need for medical staff to frequently open the lid to manually add medicine, which improves the convenience of use and the continuity of treatment.

[0015] (2) In this invention, the solution is equipped with a linear potentiometer-linked liquid level lever mechanism. The liquid level change drives the movable shaft to rotate synchronously, and the conductive brush slides along the resistance wire through the gear screw transmission. The voltage signal that changes with the liquid level in real time is output to the ultrasonic generator. The movable shaft drives the potentiometer assembly to move synchronously during the liquid level change, so that the driving parameters of the ultrasonic generator are adjusted in linkage with the liquid level change, thereby improving the atomization stability under different liquid level conditions. The adjustment structure and the liquid replenishment opening and closing structure share the same liquid level response mechanism, which reduces the structural complexity caused by independently setting detection and adjustment components.

[0016] (3) In this invention, the device integrates a layered condensate collection mechanism, and sets up a conical reflux plate, annular reflux plate and baffle plate to form a multi-layered guide reflux channel inside the medicine cup. The condensate generated in the cup can be used to intercept the droplets in the medicine cup through the first reflux guide groove and the second reflux guide groove, and the condensate on the patient side can be collected and discarded independently. At the same time, a collection pipe with a spiral guide groove and a detachable collection bag are added near the concentrator on the corrugated hose. The condensate in the pipeline can be quickly guided and collected, avoiding the condensate from being stuck in the airflow dead corners of the corrugated hose, mask and other parts.

[0017] (4) In this invention, the liquid replenishment mechanism relies on the compression spring and lever to achieve automatic reset and sealing of the baffle. The lever structure can achieve easy swinging operation, which saves effort. The sealing gasket can ensure the sealing of the liquid replenishment channel after it is closed, and prevent liquid leakage. The whole machine is equipped with an integrated handle for easy handling. The bottom shock-absorbing pad can buffer the vibration of the equipment operation and reduce the ultrasonic noise. The corrugated hose and the mask adopt a snap-fit ​​conversion connector, and the collection bag adopts a threaded assembly, which is convenient for disassembly and cleaning, and facilitates the disinfection and replacement of consumables. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a respiratory nebulization therapy circuit device with a condensate collection structure according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a respiratory nebulization therapy circuit device with a condensate collection structure according to the present invention. Figure 2 ; Figure 3 This is a front view of a respiratory nebulization therapy circuit device with a condensate collection structure according to the present invention; Figure 4 This is a schematic diagram of the structure of the medicine cup of the present invention; Figure 5 This is a front view of the medicine cup of the present invention; Figure 6 This is a schematic diagram of the baffle plate of the present invention; Figure 7 This is an internal schematic diagram of the first and second housings of the present invention; Figure 8 This is the present invention. Figure 7 Enlarged view of point A; Figure 9This is an internal schematic diagram of the linear potentiometer of the present invention.

[0020] Reference numerals: 1. Main unit; 2. Medicine cup; 3. Storage box; 4. Ultrasonic generator; 5. Corrugated hose; 6. Mask; 7. Medicine replenishment mechanism; 8. First housing; 9. Second housing; 10. Partition; 11. Float; 12. Push rod; 13. Swing arm; 14. Movable shaft; 15. Lifting rod; 16. Baffle plate; 17. Fixing block; 18. Compression spring; 19. Linear potentiometer; 20. First bevel gear; 21. 21. Housing; 22. Metal lead screw; 23. Slide; 24. Resistance wire; 25. Conductive brush; 26. Condensate collection mechanism; 27. Annular reflux plate; 28. Through hole; 29. ​​Conical reflux plate; 30. Guide inclined surface; 31. Reflux pipe; 32. First reflux guide channel; 33. Baffle plate; 34. Second reflux guide channel; 35. Concentrated cover; 36. Collection pipe; 37. Collection bag; 38. Handle; 39. Second conical gear. Detailed Implementation

[0021] 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.

[0022] Reference manual attached Figure 1 To be continued Figure 9 As shown, the present invention discloses a respiratory nebulization therapy circuit device with a condensate collection structure, including a main unit 1, a drug replenishment mechanism 7 and a condensate collection mechanism 26.

[0023] The main unit 1 serves as the overall supporting structure for the device, housing and securing all functional components. A detachable medication cup 2 is mounted on the upper part of the main unit 1. Inside the medication cup 2, a storage box 3 is fixedly installed. The storage box 3 is the core cavity for medication storage and nebulization. An ultrasonic generator 4 is fixedly installed inside the storage box 3. The ultrasonic generator 4 uses high-frequency ultrasonic nebulization to break the liquid therapeutic medication inside the storage box 3 into fine aerosol particles. After nebulization, the aerosol is stably delivered to the corrugated hose 5 by a micro-fan. A face mask 6, adapted for human face wear, is attached to the end of the corrugated hose 5 furthest from the medication cup 2. Finally, the aerosol is delivered to the patient's respiratory tract through the face mask 6, completing the nebulization treatment.

[0024] Specifically, the main unit 1 integrates a medication replenishment mechanism 7, which automatically replenishes the medication inside the storage box 3 without frequent manual intervention, ensuring continuous and stable nebulization treatment. The medication replenishment mechanism 7 includes a first chamber 8 and a second chamber 9 symmetrically arranged inside the main unit 1. The first chamber 8 is connected to the inside of the storage box 3 via a guide tube, and can collect real-time changes in the medication level inside the storage box 3. The end of the first chamber 8 away from the storage box 3 is connected to the second chamber 9 through a connecting opening in the middle of the partition 10. The second chamber 9 is used to store sufficient spare medication, providing a medication reserve basis for automated replenishment. A float 11 is vertically mounted inside the first housing 8. The float 11 can float vertically in sync with the rise and fall of the liquid level inside the first housing 8 and the liquid storage box 3. A vertically arranged push rod 12 is fixedly connected to the top of the float 11. A protruding limiting part is integrally formed on the inner wall of the first housing 8. A limiting groove is opened along the vertical height direction of the protruding limiting part. The push rod 12 is slidably assembled inside the limiting groove. The vertical sliding stroke of the push rod 12 is limited and guided by the limiting groove to ensure that the push rod 12 can only move in a vertical straight line.

[0025] The top end of the push rod 12 movably abuts against one side of the bottom end of the swing arm 13. The swing arm 13 is arranged laterally inside the first housing 8. The middle part of the swing arm 13 is rotatably connected to the inner wall of the first housing 8 through the movable shaft 14, so that the swing arm 13 can swing back and forth around the movable shaft 14, forming a complete lever transmission structure. When the liquid level inside the storage box 3 drops, the float 11 sinks synchronously with the liquid level, driving the push rod 12 to slide downward, releasing the top support limit on the bottom end of the swing arm 13; when the liquid level rises, the float 11 floats up and pushes the push rod 12 to slide upward, thereby driving the swing arm 13 to deflect at an angle around the movable shaft 14, realizing the linkage between liquid level change and mechanical transmission.

[0026] Furthermore, the end of the swing arm 13 furthest from the push rod 12 movably abuts against the upper end of the lifting rod 15. The lifting rod 15 vertically passes through the partition 10, and the lower end of the lifting rod 15 is connected to the baffle plate 16, which is correspondingly positioned at the opening of the partition 10. The partition 10 has a movable cavity for the lifting rod 15 to move up and down. Fixed blocks 17 on both sides of the lifting rod 15 are slidably fitted into the movable cavity. A compression spring 18 is positioned between the fixed blocks 17 and the partition 10 to push the lifting rod 15 back to its original position when the swing arm 13 does not apply downward pressure to the lifting rod 15. When the liquid level in the storage box 3 drops, the float 11 moves downward, the push rod 12 moves downward, and the downward pressure of the swing arm 13 on the lifting rod 15 decreases. Under the reset action of the compression spring 18, the baffle 16 leaves the opening, allowing the medicine in the second box 9 to be replenished into the first box 8 through the opening and further replenished into the storage box 3. When the liquid level in the storage box 3 rises, the float 11 moves upward, the push rod 12 moves upward and drives the swing arm 13 to swing. The swing arm 13 pushes the lifting rod 15 downward, causing the baffle 16 to close the opening, thereby stopping the replenishment.

[0027] Specifically, the movable shaft 14 is connected to the potentiometer assembly for transmission, and the swing arm 13 can drive the movable shaft 14 to rotate when it swings with the liquid level. The potentiometer assembly includes a housing 21, a first bevel gear 20, a second bevel gear 39, a lead screw 22, a slide 23, a resistance wire 24, and a conductive brush 25; the first bevel gear 20 meshes with the second bevel gear 39 and drives the lead screw 22 to rotate, the slide 23 is helically driven on the lead screw 22, the conductive brush 25 is mounted on the slide 23 and slides along the length of the resistance wire 24, and the strip groove provided on the inner wall of the housing 21 is used to limit the rotation of the slide 23 and guide its movement along the length direction. During operation, the rotation of the movable shaft 14 drives the first bevel gear 20 and the metal lead screw 22 to rotate, which in turn drives the slide 23 and the conductive brush 25 to move, thereby changing the electrical parameters output by the potentiometer assembly to the adjustment terminal of the ultrasonic generator 4. This allows the driving parameters of the ultrasonic generator 4 to be adjusted according to the liquid level in the liquid storage box 3, thereby improving the atomization stability under different liquid level conditions.

[0028] The inner wall of the housing 21 has a strip-shaped limiting groove along its vertical length. The side of the slide 23 is slidably engaged inside the strip-shaped groove, which restricts the circumferential rotation of the slide 23, leaving only the vertical sliding degree of freedom, thus ensuring the stability and reliability of the transmission structure. The first end of the resistance wire 24 is connected to the reference voltage terminal, and the second end is connected to the ground terminal. The conductive brush 25 slides in contact with the resistance wire 24 to form a sliding output terminal, which is connected to the power adjustment terminal of the ultrasonic generator 4. The metal screw 22 is installed inside the housing 21 through an insulating support and is only used to convert the rotation of the movable shaft 14 into the linear movement of the slide 23. It does not serve as a conductive path for the power adjustment circuit. In actual operation, the movable shaft 14 drives the first bevel gear 20 to rotate with the change of liquid level, which in turn drives the metal screw 22 to rotate and causes the slide 23 and the conductive brush 25 to slide vertically, changing the length of the resistance wire 24 and thus changing the circuit output voltage, thereby achieving adaptive adjustment of the working power of the ultrasonic generator 4. The output of the ultrasonic generator 4 is connected to a piezoelectric ceramic transducer. The power change can adjust the high-frequency vibration frequency and amplitude of the piezoelectric ceramic transducer, so that the atomization vibration parameters are adapted to the real-time liquid level inside the liquid storage box 3.

[0029] Specifically, when the float 11 rises and pushes the push rod 12 upward, it means that the pressure on the piezoelectric ceramic transducer on the ultrasonic generator 4 inside the liquid storage box 3 increases. Thus, under the rotational connection of the swing arm 13, the baffle 16 can close the opening at the connection between the first box 8 and the second box 9, preventing the liquid from being continuously delivered to the first box 8. At the same time, the rotation of the swing arm 13 can drive the rotation of the movable shaft 14. Under the rotation of the metal screw 22, the slide 23 moves to the right, and the conductive brush 25 moves synchronously on the resistance wire 24. The input resistance becomes shorter and the resistance decreases. The linear potentiometer 19 is installed with the resistance wire 24 in series. At this time, the current increases and the output power increases, thereby increasing the vibration frequency of the atomizing plate in the piezoelectric ceramic transducer, so as to adapt to the hydraulic environment with higher pressure.

[0030] Conversely, when the float 11 descends with the liquid level and pushes the push rod 12 downwards, it means that the pressure on the piezoelectric ceramic transducer on the ultrasonic generator 4 inside the liquid storage box 3 decreases. Thus, under the elastic recovery action of the compression spring 18, the baffle 16 can open the opening at the connection between the first box 8 and the second box 9, allowing the medicine to be delivered into the liquid storage box 3. At the same time, when the swing arm 13 rotates, it can drive the rotation of the movable shaft 14. Under the action of the metal screw 22, the slide 23 moves to the left, and the conductive brush 25 moves synchronously on the resistance wire 24. The connected resistance becomes longer and the resistance becomes greater. The linear potentiometer 19 is installed in series with the resistance wire 24. At this time, the current becomes smaller and the output power becomes smaller, thereby reducing the vibration frequency of the atomizing plate in the piezoelectric ceramic transducer, thus adapting to the lower pressure hydraulic environment.

[0031] This device also includes a condensate collection mechanism 26, used to specifically collect the condensate generated in the atomization circuit, preventing condensate from stagnating and breeding bacteria, wetting the patient's face, or causing choking. It also allows for the return and reuse of droplets trapped in the medication cup. The condensate collection mechanism 26 includes an annular reflux plate 27, a conical reflux plate 29, a reflux pipe 31, and a baffle plate 33. The annular reflux plate 27 is embedded and fixedly installed at the top port of the storage box 3. Several through holes 28 are evenly distributed in a ring on the annular reflux plate 27, allowing the atomized aerosol to pass through normally while intercepting large droplets. The conical reflux plate 29 is arranged parallel above the annular reflux plate 27. The conical reflux plate 29 has a tapered structure that is wider at the top and narrower at the bottom, with an inclined guide surface 30 on its outer side. The guide surface 30 is directly opposite the annularly distributed through holes 28, collecting the condensate that precipitates from the aerosol upon cooling. A return pipe 31 is fixedly connected between the bottom end of the conical return plate 29 and the bottom wall of the inner wall of the liquid storage box 3. A first return guide groove 32 is opened in the length direction inside the return pipe 31. The first return guide groove 32 is connected to the inner cavity of the liquid storage box 3. After the intercepted condensate gathers along the guide inclined surface 30, it automatically flows back to the inside of the liquid storage box 3 through the through hole 28, the return pipe 31 and the first return guide groove 32, realizing the return of the intercepted droplets inside the medicine cup and independently collecting the condensate in the patient side pipeline.

[0032] A baffle plate 33 is fixedly installed on the outer top of the liquid storage box 3. The outer edge of the baffle plate 33 is limited and supported on the inner wall of the liquid cup 2. The overall arrangement is inclined, which can guide the atomized airflow and intercept the condensate adhering to the inner wall of the liquid cup 2. A second return flow channel 34 is opened through the inside of the baffle plate 33. The outer port of the second return flow channel 34 is closely fitted with the inner wall of the liquid cup 2, and the inner port extends and connects to the inside of the liquid storage box 3. The condensate condensed on the inner wall of the liquid cup 2 can slide down the cup wall to the surface of the baffle plate 33, and then flow back to the liquid storage box 3 through the second return flow channel 34, further improving the condensate collection coverage and reducing liquid waste.

[0033] A concentrator 35 is fixedly fitted to the top end of the medicine cup 2. The concentrator 35 is a tapered gas-gathering structure that can concentrate and transport the atomized aerosol into the corrugated hose 5, preventing the aerosol from spreading and escaping. A collection tube 36 is fixedly installed on the outer wall of the corrugated hose 5 near the concentrator 35. The collection tube 36 is laid in an inclined direction, and its inner wall has a spiral guide groove along the extension direction. The spiral guide groove can spirally guide the condensate precipitated by the airflow inside the corrugated hose 5, accelerating the accumulation of liquid. The condensate that cannot flow back inside the hose can be guided by the collection tube 36 and stored in the collection bag 37, avoiding the condensate from remaining in the pipeline and flowing into the mask 6, causing patient discomfort and secondary infection problems.

[0034] The top of the main unit 1 is integrally molded with a handle 38, which is ergonomically designed for easy handling and relocation of the equipment. The bottom of the main unit 1 is fixedly equipped with shock-absorbing pads at the four corners. These pads effectively buffer the vibrations generated by the high-frequency operation of the ultrasonic generator 4, reduce the noise of the equipment, and improve the stability of the equipment placement, preventing slippage and displacement during operation.

[0035] When the device is working, the spare medicine in the second tank 9 forms a replenishment channel through the opening of the partition 10, the first tank 8, and the storage box 3. When the liquid level in the storage box 3 drops, the float 11 moves down, and the baffle 16 leaves the opening under the action of the compression spring 18, allowing the medicine in the second tank 9 to replenish the storage box 3. When the liquid level in the storage box 3 rises, the float 11 moves up, the swing arm 13 pushes the lifting rod 15 down, and the baffle 16 closes the opening, stopping the replenishment. At the same time, the rotation of the movable shaft 14 is linked to the potentiometer assembly to adjust the driving parameters of the ultrasonic generator 4. The aerosol formed by atomization is transported to the mask 6 through the concentrator 35 and the corrugated hose 5. The condensate formed in the medicine cup 2 can be guided back to the storage box 3 along the conical return plate 29, the return pipe 31, and the baffle 33. The condensate in the corrugated hose 5 that is inconvenient to return is guided into the collection bag 37 through the collection pipe 36, realizing the guidance and collection of the condensate.

[0036] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0037] The preferred embodiments of the present invention disclosed above are only for the purpose of illustrating the present invention.

[0038] The preferred embodiments do not describe all details exhaustively, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. These embodiments have been selected and specifically described in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to well understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A respiratory tract nebulization therapy circuit device with a condensate collection structure, comprising a main unit (1), a medicine cup (2), a reservoir (3), an ultrasonic generator (4), a corrugated hose (5), and a mask (6), wherein the reservoir (3) is disposed within the medicine cup (2), and the ultrasonic generator (4) is disposed within the reservoir (3), characterized in that: The main unit (1) is provided with a first box (8) connected to the liquid storage box (3) and a second box (9) connected through the opening of the partition (10). The float (11) in the first box (8) is connected to the push rod (12). The push rod (12) abuts against one end of the swing arm (13) that swings around the movable shaft (14). The other end of the swing arm (13) abuts against the lifting rod (15). The lifting rod (15) passes through the partition (10) and is connected to the baffle plate (16) that opens and closes the opening. An elastic reset component is provided between the lifting rod (15) and the partition (10). The movable shaft (14) is connected to the potentiometer assembly to adjust the parameters of the ultrasonic generator (4) according to the liquid level. The first box (8) is connected to the lower part of the storage box (3) through a liquid level connecting pipe so that the liquid level in the first box (8) rises and falls synchronously with the working liquid level in the storage box (3). The second box (9) forms a replenishment storage cavity located on one side of the first box (8). The partition (10) is provided with a replenishment opening at the lower part. A valve seat that cooperates with the baffle plate (16) is formed around the replenishment opening. The baffle plate (16) is located at the replenishment opening and can press against or leave the valve seat under the action of the lifting rod (15), thereby cutting off or connecting the replenishment passage from the second box (9) to the first box (8) and then to the storage box (3). A collection hood (35) is provided between the top of the medicine cup (2) and the corrugated hose (5). The corrugated hose (5) is connected to the collection pipe (36) near the collection hood (35). The collection pipe (36) is connected to the collection bag (37).

2. The respiratory tract nebulization therapy circuit device with a condensate collection structure according to claim 1, characterized in that: The end of the swing arm (13) away from the push rod (12) is movably abutted against the upper end of the lifting rod (15). The bottom of the lifting rod (15) passes through the partition (10) and extends to the baffle (16). Both ends of the outer wall of the baffle (16) are provided with sealing gaskets. The partition (10) is provided with a movable cavity that cooperates with the lifting rod (15). Both ends of the outer wall of the lifting rod (15) are provided with fixing blocks (17). The fixing blocks (17) are slidably connected in the movable cavity, and the fixing blocks (17) and the partition (10) are connected by a compression spring (18).

3. The respiratory tract nebulization therapy circuit device with a condensate collection structure according to claim 1, characterized in that: The potentiometer assembly includes a first bevel gear (20) connected to the movable shaft (14), a second bevel gear (39) meshing with the first bevel gear (20) and fixed on the metal screw (22), a slide (23) helically driven on the metal screw (22), and a conductive brush (25) disposed on the slide (23) and sliding along the length of the resistance wire (24).

4. The respiratory tract nebulization therapy circuit device with a condensate collection structure according to claim 3, characterized in that: The potentiometer assembly also includes a housing (21), the inner wall of which is provided with a strip groove that slides with the slide block (23) along its length. The two ends of the resistance wire (24) are connected to the reference voltage terminal and the ground terminal. The conductive brush (25) is the sliding output terminal. The metal wire rod (22) is insulated from the resistance wire (24) and serves only as a mechanical transmission component. The conductive brush (25) is electrically connected to the adjustment terminal of the ultrasonic generator (4) as the sliding output terminal of the potentiometer assembly. The ultrasonic generator (4) drives the piezoelectric ceramic transducer.

5. The respiratory tract nebulization therapy circuit device with a condensate collection structure according to claim 2, characterized in that: The distance from the contact position of the swing arm (13) and the push rod (12) to the center of the movable shaft (14) forms a power arm, and the distance from the contact position of the swing arm (13) and the lifting rod (15) to the center of the movable shaft (14) forms a resistance arm, and the length of the power arm is greater than the length of the resistance arm.

6. The respiratory tract nebulization therapy circuit device with a condensate collection structure according to claim 1, characterized in that: The top of the liquid storage box (3) is provided with an embedded annular reflux plate (27), and the annular reflux plate (27) is provided with annularly distributed through holes (28). A conical reflux plate (29) is provided above the annular reflux plate (27), and the flow guiding inclined surface (30) of the conical reflux plate (29) is aligned with the through holes (28). A reflux pipe (31) is connected between the conical reflux plate (29) and the bottom of the liquid storage box (3). A first reflux guiding groove (32) communicating with the liquid storage box (3) is provided on the inner wall of the reflux pipe (31).

7. The respiratory tract nebulization therapy circuit device with a condensate collection structure according to claim 6, characterized in that: The top of the liquid storage box (3) is equipped with a baffle plate (33) that provides a limiting support to the inner wall of the liquid cup (2). A second reflux guide groove (34) is provided in the baffle plate (33). One end of the second reflux guide groove (34) is attached to the inner wall of the liquid cup (2), and the other end extends into the liquid storage box (3).

8. The respiratory tract nebulization therapy circuit device with a condensate collection structure according to claim 1, characterized in that: The corrugated hose (5) has a liquid guide hole at the lowest generatrix on the lower side near the concentrator (35). The inlet of the collection pipe (36) is connected to the liquid guide hole and is inclined downward relative to the main airflow direction of the corrugated hose (5). The inlet of the collection pipe (36) has a liquid guide lip that extends into the liquid film flow path of the inner wall of the corrugated hose (5) and the liquid guide lip does not block the main airflow channel of the corrugated hose (5). The collection bag (37) is a sealed and detachable liquid collection component. After disassembly, the condensate in it does not flow back to the corrugated hose (5) and the mask (6).

Images