Intelligent constant-temperature visual ear administration device based on vibrating screen hole atomization technology

Abstract

This invention relates to the field of minimally invasive medical drug delivery devices, specifically an intelligent constant-temperature visual ear drug delivery device based on vibrating sieve atomization technology. It includes a drug delivery handle, an independent drug chamber and a cleaning chamber separated by a heat-insulating plate inside a transparent column, and a rotating friction ring to achieve integrated drug delivery and cleaning functions. This precisely meets the core R&D requirements of the current biomedical engineering industry for the clinical adaptability and safety of minimally invasive ear drug delivery devices. Through a pressure ring, compression column, and compression spring, it can synchronously adapt to the vibration mode of the piezoelectric ceramic nebulizer as the medium changes, solving the core pain points of insufficient flushing force in the cleaning mode and easy damage to the tympanic membrane in the drug delivery mode of existing devices. Combined with a constant-temperature heating module, an endoscopic visualization module, and a disposable extension tube with a flexible rubber ring, it significantly improves drug delivery targeting and operational safety, filling the technological gap in the industry where similar devices lack functional synergy, and adapting to the needs of clinical and home use.

Description

Technical Field

[0001] This invention relates to the field of medical minimally invasive drug delivery equipment technology, specifically to an intelligent constant temperature visual ear drug delivery device based on vibrating sieve hole atomization technology. Background Technology

[0002] With chronic suppurative otitis media, external otitis, and Meniere's disease becoming increasingly common in otolaryngology, local targeted drug delivery has become a core treatment method for these diseases. Traditional methods of drug delivery, such as ear drops and cotton swab application, suffer from uneven drug coverage, tympanic membrane irritation, and poor lesion targeting, making them unsuitable for the needs of refined diagnosis and treatment. Against this backdrop, nebulized ear drug delivery devices have become a key research and application category in the field of minimally invasive drug delivery equipment in the biomedical engineering industry. These devices use a core nebulization unit to transform the therapeutic drug solution into a uniform micron-level atomized medium, which is then precisely delivered into the lesion area of ​​the ear canal via a matching delivery tubing and disposable medical consumables. Existing mainstream products often include auxiliary structures such as endoscopic visual navigation and constant temperature control, significantly optimizing drug delivery targeting and patient comfort. They can adapt to the local drug delivery needs of various external and middle ear diseases and are widely used in clinical diagnosis and treatment, postoperative care, and long-term home treatment, providing stable equipment support for the standardized local treatment of ear diseases.

[0003] Although existing nebulized ear delivery devices have undergone multiple rounds of technological optimization, several technical shortcomings remain unresolved in their application throughout the entire clinical process, significantly falling short of the core requirements for infection control in clinical settings and safe home use. Firstly, there is a lack of synergy between the device's cleaning and delivery functions. Most existing products only have a single delivery function, failing to achieve automated cleaning of the entire tubing after administration. Residual medication inside the tubing after administration can easily breed bacteria. Furthermore, the sealing design of consumable insertion and removal has significant shortcomings, allowing external impurities and ear canal secretions to easily enter the tubing and even the main unit's internal flow channels, posing a risk of cross-infection and significantly increasing the difficulty of infection control in clinical settings. Secondly, the nebulization mode lacks adaptability to different scenarios. The requirements for nebulization performance differ greatly between delivery and cleaning scenarios. Existing devices cannot synchronously adapt nebulization parameters with the medium switching. In cleaning mode, the nebulization flushing force is insufficient to remove tubing residue, while in delivery mode, improper nebulization parameters can easily impact the tympanic membrane and cause vestibular irritation. Additionally, the high operational threshold makes them prone to misuse in non-professional home settings, limiting their widespread application. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent constant temperature visual ear drug delivery device based on vibrating screen hole atomization technology, so as to solve the many defects of existing ear drug delivery devices mentioned in the background art: most existing devices only have a single drug delivery function and cannot complete the automatic cleaning of the entire flow channel of the tubing after drug delivery. The residual drug liquid in the tubing is prone to bacterial growth. At the same time, the sealing and protection design of the consumable insertion and removal links has obvious shortcomings. External impurities and ear canal secretions can easily invade the tubing and even the internal flow channel of the main unit, posing a safety hazard of cross-infection.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent constant temperature visual ear drug delivery device based on vibrating screen hole atomization technology, comprising a drug delivery handle, one end of which is coaxially fixed with a threaded head, the outer wall of which is threadedly connected to a limiting chamber, and a transparent column coaxially rotatably disposed inside the limiting chamber; a heat insulation plate is fixed inside the transparent column, which divides the interior of the transparent column into an independent drug chamber and a cleaning chamber; both ends of the transparent column are coaxially fixed with rotating columns, one of which is rotatably installed in a limiting hole at the end of the threaded head, and the other is rotatably installed on the inner wall of the end of the limiting chamber; a through hole is provided through the side wall of the limiting chamber, and a first cotton core rod is fixed through the transparent column at the position corresponding to the drug chamber; a pressure-reducing extension tube is coaxially fixed inside the limiting chamber near the first cotton core rod, a piezoelectric ceramic atomizer is fixed at the end of the pressure-reducing extension tube near the first cotton core rod, and a disposable extension tube is coaxially connected at the end of the pressure-reducing extension tube away from the piezoelectric ceramic atomizer; an opening and closing control component for controlling the opening and closing of the pipeline is provided at the connection between the disposable extension tube and the pressure-reducing extension tube.

[0006] Furthermore, a battery is installed inside the drug delivery handle, a charging interface is fixed on the end face of the drug delivery handle away from the limiting chamber, a display screen is embedded in one side of the outer wall of the drug delivery handle, and an atomization start button is also provided on the outer wall of the drug delivery handle.

[0007] Furthermore, an endoscopic viewing module is fixed to one end face of the limiting chamber near the disposable extension tube, a constant temperature heating module is integrated inside the heat insulation plate, a second cotton core rod is fixed through the transparent column corresponding to the position of the cleaning chamber, and a cleaning control component is provided on the outer side of one end of the transparent column corresponding to the second cotton core rod.

[0008] Furthermore, a flexible rubber ring is fitted and fixed on the outer wall of the end of the disposable extension tube away from the pressure-reducing extension tube, and a rotating friction ring is fitted and fixed on the outer wall of the transparent column at the position corresponding to the through hole. Part of the outer edge of the rotating friction ring is exposed to the outside of the limiting chamber through the through hole.

[0009] Furthermore, iron blocks are fixed to the inner walls on both sides of the through hole, magnets are fixed to the outer wall of the rotating friction ring corresponding to the positions of the iron blocks, and filling holes with sealing plugs are opened on the transparent column corresponding to the positions of the medicine chamber and the cleaning chamber.

[0010] Furthermore, the cleaning control component includes a pressure ring and several compression columns. The pressure ring is coaxially sleeved on the outer side of the end of the second cotton core rod. Several compression columns are uniformly fixed circumferentially on the end face of the pressure ring facing the transparent column, and the end of the compression column away from the pressure ring is fixed on the corresponding end face of the transparent column.

[0011] Furthermore, each of the compression columns is fitted with a compression spring on its outer wall, with the two ends of the compression spring fixedly installed on the corresponding end face of the transparent column and the corresponding end face of the pressure ring, respectively.

[0012] Furthermore, the opening and closing control component includes a limiting bottom ring, a limiting top ring, and several arc-shaped pieces. The limiting bottom ring is coaxially fixed to the outer wall of the docking end of the pressure-reducing extension tube, and the limiting top ring is coaxially fixed to the end face of the limiting bottom ring facing the disposable extension tube. An annular cavity is formed between the limiting bottom ring and the limiting top ring. Several arc-shaped pieces are arranged circumferentially in the annular cavity. A docking friction ring is coaxially fixed to the inner wall of the limiting top ring, and the insertion end of the disposable extension tube is coaxially inserted and engaged with the outer wall of the docking friction ring.

[0013] Furthermore, one end of each arc piece is rotatably mounted on the inner wall of the limiting bottom ring. A driving ring is coaxially rotatably arranged between the limiting bottom ring and the limiting top ring. The driving ring has an arc-shaped guide groove on one side of the arc piece that corresponds to the arc piece. Each arc piece has a guide post fixed at the position corresponding to the arc-shaped guide groove. One end of the guide post is slidably embedded in the corresponding arc-shaped guide groove.

[0014] Furthermore, the outer circumference of the limiting bottom ring is provided with several limiting grooves, and a driving block is slidably arranged inside each limiting groove. One end of the driving block is fixedly connected to the outer wall of the driving ring. A return spring is fixed between the driving block and the inner wall of the limiting groove. An abutment block is attached to the side of the driving block away from the driving ring. One end of the abutment block is fixed to the outer wall of the disposable extension tube insertion end.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention utilizes a transparent column with an internal heat insulation plate to separate an independent drug delivery chamber and a cleaning chamber. Combined with a rotating friction ring, it achieves integrated and synergistic drug delivery and cleaning functions. This precisely meets the core R&D requirements of the current biomedical engineering industry for the clinical adaptability and safety of minimally invasive ear drug delivery devices. Through the pressure ring, compression column, and squeezing spring of the cleaning control component, it can synchronously adapt to the vibration mode of the piezoelectric ceramic nebulizer as the medium changes. This solves the core pain points of existing devices, such as insufficient flushing force in the cleaning mode and easy damage to the tympanic membrane in the drug delivery mode. Combined with a constant temperature heating module, an endoscopic visualization module, and a disposable extension tube with a flexible rubber ring, it significantly improves the targeting of drug delivery and operational safety. This fills the technological gap in the industry where similar devices lack functional synergy and is suitable for clinical and home use in all scenarios.

[0017] 2. This invention utilizes a ring-type adaptive sealing structure composed of a limiting bottom ring, a limiting top ring, and multiple sets of arc plates in the opening and closing control component. This structure precisely meets the core application requirements of the biomedical engineering industry for sterile protection and prevention of cross-contamination in minimally invasive medical drug delivery devices. Through the contact block at the end of the disposable extension tube, in conjunction with the linkage structure of the drive block, drive ring, arc-shaped guide groove, and guide column, the device achieves automatic flow channel opening during consumable insertion and rotation, and automatic closure and sealing of the opening and closing control component driven by the reset spring after removal. This solves the core defect of insufficient sealing protection during consumable insertion and removal in existing devices, while significantly improving the ease of operation of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall and partial cross-sectional three-dimensional structure of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the limiting chamber and transparent column of the present invention;

[0021] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the transparent column and heat insulation plate of the present invention;

[0023] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the transparent column and disposable extension tube of the present invention;

[0024] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0025] Figure 8 This is a partial cross-sectional three-dimensional structural schematic diagram of the pressure ring and compression column of the present invention;

[0026] Figure 9 This is a partial cross-sectional three-dimensional structural schematic diagram of the pressure-reducing extension tube and the disposable extension tube of the present invention;

[0027] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point C;

[0028] Figure 11 This is a three-dimensional structural diagram of the limiting bottom ring and the limiting top ring of the present invention;

[0029] Figure 12 This is a schematic diagram of the disassembled structure of the limiting bottom ring and the driving ring of the present invention.

[0030] In the attached diagram, the components represented by each number are as follows: 1. Dosing handle; 2. Limiting chamber; 3. Threaded head; 4. Transparent column; 5. Drug compartment; 6. Cleaning compartment; 7. Heat insulation plate; 8. First cotton wick; 9. Second cotton wick; 10. Rotating column; 11. Limiting hole; 12. Constant temperature heating module; 13. Pressure reducing extension tube; 14. Disposable extension tube; 15. Flexible rubber ring; 16. Through hole; 17. Rotating friction ring; 18. Iron block; 19. Magnet; 20. Filling hole 21. Atomization start button; 22. Display screen; 23. Charging interface; 24. Endoscopic viewing module; 25. Pressure ring; 26. Compression column; 27. Compression spring; 28. Piezoelectric ceramic disc atomizer; 29. ​​Limiting bottom ring; 30. Butt friction ring; 31. Contact block; 32. Limiting top ring; 33. Arc plate; 34. Drive ring; 35. Arc-shaped guide groove; 36. Guide column; 37. Limiting groove; 38. Drive block; 39. Reset spring; 40. Battery. Detailed Implementation

[0031] 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.

[0032] Example 1: Please refer to Figure 1 - Figure 9 A smart, temperature-controlled, visual ear-administered drug delivery device based on vibrating screen atomization technology includes a drug delivery handle 1. A threaded head 3 is coaxially fixed to one end of the handle 1. A limiting chamber 2 is threadedly connected to the outer wall of the threaded head 3. A transparent column 4 is coaxially rotatably mounted inside the limiting chamber 2. A heat insulation plate 7 is fixed inside the transparent column 4, dividing the interior of the transparent column 4 into an independent drug chamber 5 and a cleaning chamber 6. Rotating columns 10 are coaxially fixed to both ends of the transparent column 4. One rotating column 10 is rotatably installed in the limiting hole 11 at the end of the threaded head 3, and the other rotating column 10 is rotatably installed... The end inner wall of the limiting chamber 2 is installed; a through hole 16 is opened through the side wall of the limiting chamber 2, and a first cotton core rod 8 is fixed through the transparent column 4 corresponding to the position of the medicine chamber 5; a pressure reducing extension tube 13 is coaxially fixed inside the limiting chamber 2 near the first cotton core rod 8, a piezoelectric ceramic atomizer 28 is fixed at the end of the pressure reducing extension tube 13 near the first cotton core rod 8, and a disposable extension tube 14 is coaxially connected at the end of the pressure reducing extension tube 13 away from the piezoelectric ceramic atomizer 28. An opening and closing control component for controlling the opening and closing of the pipeline is provided at the connection between the disposable extension tube 14 and the pressure reducing extension tube 13.

[0033] The inner cavity of the drug delivery handle 1 is equipped with a storage battery 40. A charging interface 23 is fixed on the end face of the drug delivery handle 1 away from the limiting chamber 2. A display screen 22 is embedded in one side of the outer wall of the drug delivery handle 1. A nebulization start button 21 is also provided on the outer wall of the drug delivery handle 1.

[0034] An endoscope 24 is fixed to one end face of the limiting chamber 2 near the disposable extension tube 14. A constant temperature heating module 12 is integrated inside the heat insulation plate 7. A second cotton core rod 9 is fixed through the transparent column 4 at the position corresponding to the cleaning chamber 6. A cleaning control component is provided on the outer side of one end of the transparent column 4 corresponding to the second cotton core rod 9.

[0035] A flexible rubber ring 15 is fitted and fixed on the outer wall of the disposable extension tube 14 away from the pressure reducing extension tube 13. A rotating friction ring 17 is fitted and fixed on the outer wall of the transparent column 4 at the position corresponding to the through hole 16. Part of the outer edge of the rotating friction ring 17 is exposed to the outside of the limiting chamber 2 through the through hole 16.

[0036] Iron blocks 18 are fixed on both sides of the inner wall of the through hole 16. Magnets 19 are fixed on the outer wall of the rotating friction ring 17 at the position corresponding to the iron blocks 18. Filling holes 20 with sealing plugs are opened on the transparent column 4 at the positions corresponding to the positions of the medicine chamber 5 and the cleaning chamber 6.

[0037] The cleaning control assembly includes a pressure ring 25 and several compression columns 26. The pressure ring 25 is coaxially sleeved on the outer side of the end of the second cotton core rod 9. Several compression columns 26 are evenly fixed circumferentially on the side end face of the pressure ring 25 facing the transparent column 4. The end of the compression column 26 away from the pressure ring 25 is fixed on the corresponding end face of the transparent column 4.

[0038] Each of the compression columns 26 has a compression spring 27 fitted on its outer wall. The two ends of the compression spring 27 are fixedly installed on the corresponding end face of the transparent column 4 and the corresponding end face of the pressure ring 25, respectively.

[0039] In this embodiment, before use, therapeutic ear medication is injected into the medication chamber 5 through the injection hole 20 on the transparent column 4, and medical-grade cleaning and disinfecting solution is injected into the cleaning chamber 6. After injection, the injection hole 20 is sealed with a sealing rubber stopper to ensure the independent sealing of the two chambers. This structural design precisely meets the core R&D requirements of the current biomedical engineering industry for the clinical adaptability and safety of minimally invasive ear medication devices. The heat insulation plate 7 completely physically separates the medication chamber 5 and the cleaning chamber 6. With its integrated constant temperature heating module 12, the medium in both chambers can be heated at a constant temperature simultaneously, keeping the temperature of the medication and cleaning solution stably controlled at 37°C, which is suitable for the human body. This prevents low-temperature media from entering the ear canal and stimulating the vestibular system, causing dizziness, nausea, and other discomfort. At the same time, the cleaning solution at a constant temperature has a better cleaning and dissolving effect, which can better decompose the medication residue and protein crystals in the tubing.

[0040] After the medium filling is completed, the plug end of the disposable extension tube 14 is coaxially inserted into the docking friction ring 30 and rotated at a certain angle to trigger the opening and closing control component at the docking point to fully open, so that the internal flow channels of the pressure reducing extension tube 13 and the disposable extension tube 14 are fully connected. After the flow channels are connected, the user drives the transparent column 4 to rotate along the axis of the rotating column 10 through the rotating friction ring 17 exposed at the through hole 16 on the side wall of the limiting chamber 2, until the magnet 19 on the rotating friction ring 17 is attracted and attached to one of the iron blocks 18 on the inner wall of the through hole 16, thus completing the precise rotation positioning of the cleaning mode; at this time, the transparent column 4 drives the second cotton wick 9 in the cleaning chamber 6 to precisely align with the liquid guiding end face of the piezoelectric ceramic atomizer 28, and the second cotton wick 9 continuously guides the constant temperature cleaning liquid in the cleaning chamber 6 to the piezoelectric ceramic atomizer 28.

[0041] Simultaneously, the cleaning control component at the end of the transparent column 4 is aligned with the piezoelectric ceramic atomizer 28. Under the elastic support of the compression column 26 and the compression spring 27, the pressure ring 25 presses against the outer ring edge of the screen mesh with constant and uniform pressure, forming a rigid boundary constraint on the screen mesh, significantly reducing the effective vibration area of ​​the screen mesh and increasing the edge constraint stiffness. Under constant electric drive parameters, the local vibration kinetic energy of the constrained screen mesh is significantly enhanced, and the kinetic energy and scouring force of the atomized droplets are greatly improved, automatically switching to a high-energy atomization state adapted to the cleaning mode.

[0042] At this time, pressing the nebulization start button 21 on the drug delivery handle 1 will activate the piezoelectric ceramic nebulizer 28, atomizing the constant temperature cleaning solution into high-energy micron-sized droplets. The droplets flow sequentially through the pressure-reducing extension tube 13 and the disposable extension tube 14, thoroughly cleaning the entire drug delivery channel without any dead angles. This completely removes impurities, residual medication from previous administrations, and bacteria from the pipeline, eliminating the risk of cross-infection at the source. This significantly reduces the difficulty of infection control in clinical settings and fills the technological gap in the current biomedical engineering industry where the cleaning and drug delivery functions of similar ear drug delivery devices are not sufficiently coordinated. During the cleaning process, the atomization mist pattern, mist volume, and pipeline cleaning effect can be observed in real time. Pre-testing of the device before drug delivery can be completed simultaneously to identify nebulization malfunctions in advance, avoiding problems such as nebulization failure and inaccurate dosage during subsequent drug delivery, and ensuring the stability and accuracy of the drug delivery process.

[0043] After cleaning, the transparent column 4 is rotated and reset by rotating the friction ring 17 until the magnet 19 is attracted and adhered to another set of iron blocks 18, completing the precise positioning of the drug delivery mode. At this time, the transparent column 4 drives the first cotton wick 8 in the drug chamber 5 to precisely align with the working surface of the sieve mesh of the piezoelectric ceramic atomizer 28. The first cotton wick 8 continuously and precisely guides the constant temperature liquid in the drug chamber 5 to the working surface of the sieve mesh. At the same time, the pressure ring 25 completely disengages from the sieve mesh, releasing the edge constraint on the sieve mesh. The compression column 26 and the compression spring 27 return to their natural extended state, and the sieve mesh returns to its full-amplitude free vibration state, with the edge stiffness reduced to a minimum. Under the same constant electric drive parameters, the sieve mesh vibrates evenly and smoothly, producing fine-particle-size, low-pressure, and mild atomized drug mist, with no risk of diaphragm impact, and automatically switches to a safe atomization state suitable for the drug delivery mode.

[0044] After the mode switch is completed, the drug delivery end of the disposable extension tube 14 is slowly inserted into the patient's ear canal. The flexible rubber ring 15 at the end of the disposable extension tube 14 can fit against the ear canal opening to form a flexible seal, which not only avoids the leakage of atomized drug mist and waste of drugs, but also greatly improves drug utilization and lesion targeting, and isolates external impurities from entering the ear canal and the inside of the tube, further enhancing the anti-contamination effect. During the drug delivery process, the constant temperature heating module 12 continuously controls the temperature of the liquid in the drug tank 5, ensuring that the temperature of the drug mist entering the ear canal is always adapted to the body temperature, completely eliminating the risk of vestibular stimulation. At the same time, the internal condition of the ear canal can be observed in real time through the endoscopic visualization module 24, accurately locating the lesion location, realizing visualized and precise drug delivery, ensuring that the drug mist evenly covers the lesion area, and solving the problem of drug delivery blind spots in traditional drug delivery methods. Pressing the atomization start button 21 can start the drug delivery. The drug delivery dosage can be precisely controlled by the duration of pressing, breaking the limitation that most similar devices in the biomedical engineering industry are only suitable for clinical hospital scenarios. The operation is simple and convenient, greatly reducing the operation threshold for non-professionals to use at home, and effectively improving the patient's compliance with long-term treatment.

[0045] Meanwhile, the piezoelectric ceramic atomizer in this device is an integrated structure of existing piezoelectric ceramic substrate and microporous sieve mesh. The sieve mesh is closely attached to the vibrating working surface of the piezoelectric ceramic sheet. The mesh aperture is 3-8μm medical-grade micropores. When the piezoelectric ceramic sheet is energized, it generates high-frequency axial vibration, which directly drives the sieve mesh to perform micro-amplitude vibration at the same frequency, shearing the liquid in contact with the sieve working surface into uniform micron-sized droplets.

[0046] Example 2: Please refer to Figure 9 - Figure 12This embodiment further describes Example 1. The opening and closing control component includes a limiting bottom ring 29, a limiting top ring 32, and several arc-shaped pieces 33. The limiting bottom ring 29 is coaxially fixed to the outer wall of the docking end of the pressure-reducing extension tube 13. The limiting top ring 32 is coaxially fixed to the end face of the limiting bottom ring 29 facing the disposable extension tube 14. An annular cavity is formed between the limiting bottom ring 29 and the limiting top ring 32. Several arc-shaped pieces 33 are arranged circumferentially in the annular cavity. A docking friction ring 30 is coaxially fixed to the inner wall of the limiting top ring 32. The insertion end of the disposable extension tube 14 is coaxially inserted and engaged with the outer wall of the docking friction ring 30.

[0047] One end of each arc-shaped piece 33 is rotatably mounted on the inner wall of the limiting bottom ring 29. A driving ring 34 is coaxially rotatably arranged between the limiting bottom ring 29 and the limiting top ring 32. An arc-shaped guide groove 35 corresponding to each arc-shaped piece 33 is opened on one end face of the driving ring 34 facing the arc-shaped piece 33. A guide post 36 is fixed at the position of each arc-shaped piece 33 corresponding to the arc-shaped guide groove 35. One end of the guide post 36 is slidably embedded in the corresponding arc-shaped guide groove 35.

[0048] The outer circumference of the limiting bottom ring 29 is provided with several limiting grooves 37. Each limiting groove 37 is slidably provided with a driving block 38. One end of the driving block 38 is fixedly connected to the outer wall of the driving ring 34. A return spring 39 is fixed between the driving block 38 and the inner wall of the limiting groove 37. An abutment block 31 is attached to the side of the driving block 38 away from the driving ring 34. One end of the abutment block 31 is fixed to the outer wall of the insertion end of the disposable extension tube 14.

[0049] In this embodiment, during use, the insertion end of the disposable extension tube 14 is coaxially inserted into the outside of the mating friction ring 30, so that the contact block 31 at the end of the disposable extension tube 14 corresponds and fits with the driving block 38 in the upper limit groove 37 of the limiting bottom ring 29. Then, the disposable extension tube 14 is rotated. During the rotation, the contact block 31 pushes the driving block 38 to slide circumferentially along the limiting groove 37. The driving block 38 synchronously drives the driving ring 34 fixedly connected to it to rotate coaxially in the annular cavity between the limiting bottom ring 29 and the limiting top ring 32. When the driving ring 34 rotates, the arc-shaped guide groove 35 on its end face rotates synchronously. Through the guide post 36 slidably embedded in the groove, each arc piece 33 is driven to rotate synchronously around its hinge point with the inner wall of the limiting bottom ring 29, so that the multiple arc pieces 33 arranged around it expand outward synchronously, forming a circular flow hole in the center that is completely matched with the inner diameter of the pressure-reducing extension tube 13, realizing the complete conduction between the internal flow channels of the pressure-reducing extension tube 13 and the disposable extension tube 14. This process, through the synchronous and coaxial opening and closing of multiple arc plates 33, maintains the center of the flow channel and the atomization center completely coaxial throughout the process, preventing the problem of eccentric blockage of the atomization flow channel and ensuring the uniformity and stability of the atomized mist pattern. It breaks through the technical limitations of similar sealing structures in the biomedical engineering industry that easily block the flow channel and affect the atomization effect. At the same time, the flow channel can be opened with a simple operation of insertion and rotation, without additional manual operation, which greatly reduces the operation threshold for non-professionals to use at home.

[0050] After the drug administration and tubing cleaning are completed, no additional unlocking operation is required. Simply pull the disposable extension tube 14 outward axially to disengage its insertion end from the mating friction ring 30. At this time, the contact block 31 at the end of the disposable extension tube 14 and the drive block 38 are completely released from their contact constraints. The compressed return spring 39 instantly rebounds, pushing the drive block 38 to slide back along the limiting groove 37 and simultaneously driving the drive ring 34 to rotate in the opposite direction. When the drive ring 34 rotates in the opposite direction, through the cooperation of the arc-shaped guide groove 35 and the guide post 36, it drives multiple arc plates 33 to rotate in the opposite direction and retract synchronously. The inner edges of the multiple arc plates 33 are completely in contact, forming a zero-gap sealed surface, instantly and completely sealing the tubing flow channel. This structure achieves automatic full sealing the instant consumables are removed, requiring no manual intervention. It isolates external air, dust, impurities, and ear canal secretions from entering the tubing and even the internal flow channels of the main unit, reducing tubing contamination at the source and significantly lowering the cleaning pressure on the device. It perfectly solves the problem of insufficient sealing protection during consumable insertion and removal mentioned in the background technology, filling the current technological gap in the biomedical engineering industry where similar ear drug delivery devices lack automatic closed-loop sealing protection during consumable insertion and removal. At the same time, the flexible fit and sealing of multiple arc-shaped plates 33 can adaptively fill the sealing gaps caused by tiny drug crystals and impurities, and the sealing effect is far superior to that of traditional two-piece valves. It will not fail to seal even after long-term repeated use, further enhancing the device's infection control capabilities and long-term reliability.

[0051] Meanwhile, the docking friction ring 30 is made of medical-grade high-friction coefficient silicone rubber substrate with embedded glass fiber reinforced skeleton and surface processed with annular anti-slip texture. It can directly contact medical liquid and human secretions, and can also form a stable interference fit with the plug end of disposable extension tube 14, providing static friction force that is much greater than the rebound force of return spring 39. This ensures that the disposable extension tube 14 will not rotate back to its original position after rotation, maintaining stable conduction of the flow channel throughout the process and avoiding problems such as accidental closure of the flow channel, atomization failure, and liquid splashing during use.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart, temperature-controlled, visual ear-based drug delivery device based on vibrating screen atomization technology, comprising a drug delivery handle, characterized in that: One end of the drug delivery handle is coaxially fixed with a threaded head, and the outer wall of the threaded head is threadedly connected to a limiting chamber. A transparent column is coaxially rotatably installed inside the limiting chamber. The transparent column has a heat insulation plate fixed inside, which divides the interior of the transparent column into an independent medicine chamber and a cleaning chamber. Both ends of the transparent column are coaxially fixed with rotating columns. One rotating column is rotatably installed in the limiting hole at the end of the threaded head, and the other rotating column is rotatably installed on the inner wall of the end of the limiting chamber. The side wall of the limiting chamber has a through hole, and the transparent column is fixed with the first cotton core rod through the position corresponding to the position of the medicine chamber; A pressure-reducing extension tube is coaxially fixed inside the limiting chamber on the side near the first cotton core rod. A piezoelectric ceramic atomizer is fixed at the end of the pressure-reducing extension tube near the first cotton core rod. A disposable extension tube is coaxially connected at the end of the pressure-reducing extension tube away from the piezoelectric ceramic atomizer. An opening and closing control component for controlling the opening and closing of the pipeline is provided at the connection between the disposable extension tube and the pressure-reducing extension tube.

2. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 1, characterized in that: The inner cavity of the drug delivery handle is equipped with a battery. A charging interface is fixed on the end face of the drug delivery handle away from the limiting chamber. A display screen is embedded in one side of the outer wall of the drug delivery handle. A nebulization start button is also provided on the outer wall of the drug delivery handle.

3. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 1, characterized in that: An endoscope is fixed to one end face of the limiting chamber near the disposable extension tube. A constant temperature heating module is integrated inside the heat insulation plate. A second cotton core rod is fixed through the transparent column at the position corresponding to the cleaning chamber. A cleaning control component is set on the outer side of one end of the transparent column corresponding to the second cotton core rod.

4. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 1, characterized in that: A flexible rubber ring is fitted and fixed on the outer wall of the end of the disposable extension tube away from the pressure reducing extension tube. A rotating friction ring is fitted and fixed on the outer wall of the transparent column at the position corresponding to the through hole. Part of the outer edge of the rotating friction ring is exposed to the outside of the limiting chamber through the through hole.

5. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 4, characterized in that: Iron blocks are fixed to the inner walls on both sides of the through hole. Magnets are fixed to the outer wall of the rotating friction ring at the positions corresponding to the iron blocks. Filling holes with sealing plugs are opened on the transparent column at the positions corresponding to the medicine chamber and the cleaning chamber.

6. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 3, characterized in that: The cleaning control assembly includes a pressure ring and several compression columns. The pressure ring is coaxially sleeved on the outer side of the end of the second cotton core rod. Several compression columns are evenly fixed circumferentially on the end face of the pressure ring facing the transparent column. The end of the compression column away from the pressure ring is fixed on the corresponding end face of the transparent column.

7. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 6, characterized in that: Each of the compression columns is fitted with a compression spring on its outer wall, and the two ends of the compression spring are fixedly installed on the corresponding end face of the transparent column and the corresponding end face of the pressure ring.

8. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 1, characterized in that: The opening and closing control assembly includes a bottom limiting ring, a top limiting ring, and several arc-shaped pieces. The bottom limiting ring is coaxially fixed to the outer wall of the docking end of the pressure-reducing extension tube. The top limiting ring is coaxially fixed to the end face of the bottom limiting ring facing the disposable extension tube. An annular cavity is formed between the bottom limiting ring and the top limiting ring. Several arc-shaped pieces are arranged circumferentially in the annular cavity. A docking friction ring is coaxially fixed to the inner wall of the top limiting ring. The insertion end of the disposable extension tube is coaxially inserted and engaged with the outer wall of the docking friction ring.

9. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 8, characterized in that: One end of each arc piece is rotatably mounted on the inner wall of the limiting bottom ring. A driving ring is coaxially rotatably arranged between the limiting bottom ring and the limiting top ring. The driving ring has an arc-shaped guide groove on one side of the arc piece that corresponds to the arc piece. Each arc piece has a guide post fixed at the position corresponding to the arc-shaped guide groove. One end of the guide post is slidably embedded in the corresponding arc-shaped guide groove.

10. The intelligent constant-temperature visual ear-based drug delivery device based on vibrating screen hole atomization technology according to claim 9, characterized in that: The outer circumference of the limiting bottom ring is provided with several limiting grooves. A driving block is slidably arranged inside each limiting groove. One end of the driving block is fixedly connected to the outer wall of the driving ring. A return spring is fixed between the driving block and the inner wall of the limiting groove. An abutment block is attached to the side of the driving block away from the driving ring. One end of the abutment block is fixed to the outer wall of the disposable extension tube insertion end.

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