An atomizing administration device

Abstract

This invention relates to the field of medical device technology and discloses a nebulized drug delivery device, including a nebulizing cup, a mouthpiece, and an opening and closing assembly. A connector tube is connected to the top side wall of the nebulizing cup. The connector tube includes a fixed section and a connector section, and the mouthpiece is inserted into the connector section of the connector tube. The opening and closing assembly is disposed within the fixed section of the connector tube and includes a valve plate mechanism and a rotation reset mechanism. The suction force generated during inhalation acts on the valve plate mechanism to open the internal channel of the connector tube. The rotation reset mechanism is linked with the valve plate mechanism to close the internal channel of the connector tube. By setting the opening and closing assembly, when the patient exhales, the internal channel of the connector tube is in a closed state, and the drug mist gathers in the nebulizing cup. When the patient inhales, the internal channel of the connector tube is opened, which can prevent the drug mist from entering the connector tube and mouthpiece during exhalation, thus avoiding drug waste. Furthermore, the drug mist gathers during exhalation, increasing its concentration and thus increasing the amount deposited in the lungs.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and specifically relates to an atomizing drug delivery device. Background Technology

[0002] Nebulized drug delivery is a local treatment method that delivers medication directly to the respiratory system. A specialized device transforms liquid medication into tiny mist particles, which the patient inhales through the mouth or nose, allowing the medication to act directly on the lesion.

[0003] Clinically, a jet nebulizer is commonly used. It mainly consists of an air compressor and a nebulizer cup. The air compressor generates a high-pressure, high-speed airflow, which travels through a connecting tube to the inside of the nebulizer cup. This airflow then passes at high speed through a very narrow "Venturi nozzle," causing a dramatic increase in air velocity. This creates a localized negative pressure zone around the nozzle, continuously drawing the medication from the bottom of the cup upwards. Once the medication is drawn to the nozzle, it immediately encounters the high-speed airflow and is violently propelled forward by a baffle, resulting in a violent impact that forms countless tiny droplets. These droplets are carried by the breath through the mouthpiece or mask and ultimately inhaled into the patient's airway and lungs, exerting their therapeutic effect.

[0004] Then, in actual use, the existing nebulizers continuously spray, and when the patient exhales, the medication cannot enter the respiratory tract and lungs, resulting in waste of medication and failure to form an effective treatment. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a nebulized drug delivery device to solve the technical problem that the drug cannot enter the respiratory tract and lungs during exhalation, thus causing drug waste.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A nebulized drug delivery device includes a nebulizing cup, a mouthpiece, and an opening and closing assembly. A connector tube is connected to the top side wall of the nebulizing cup. The connector tube includes a fixed section and a connector section, which are sequentially connected in a direction away from the nebulizing cup. The mouthpiece is inserted into the connector section of the connector tube. The opening and closing assembly is disposed within the fixed section of the connector tube. The assembly includes a valve plate mechanism and a rotation reset mechanism. The suction force generated by inhalation acts on the valve plate mechanism to open the internal channel of the connector tube. The rotation reset mechanism is linked to the valve plate mechanism to close the internal channel of the connector tube.

[0007] Furthermore, the valve plate mechanism includes a rotating shaft, a sealing strip, a first valve plate, and a second valve plate. Both ends of the rotating shaft extend into the inner wall of the insertion cylinder and are fixedly connected to the insertion cylinder. The first valve plate and the second valve plate are both arc-shaped and rotatably connected to the rotating shaft. They can rotate in opposite directions or around the rotating shaft. The sealing strip is disposed at the gap between the second valve plate and the inner wall of the insertion cylinder, and can seal the gap. The sealing strip is fixedly connected to the inner wall of the insertion cylinder. A receiving groove is formed on the plate surface of the first valve plate facing the side of the opposite rotation. The size of the receiving groove is the same as the plate surface size of the second valve plate.

[0008] Furthermore, the rotary reset mechanism is disposed at both ends of the first valve plate and the second valve plate. The rotary reset mechanism includes a first mounting groove, a rotating ring, and a torsion spring. The first mounting groove is coaxially opened on the outer peripheral surface of the rotating shaft. The rotating ring is disposed in the first mounting groove. The first valve plate and the second valve plate are both fixedly connected to the outer peripheral surface of the rotating ring. The torsion spring is disposed between the groove surface of the first mounting groove and the rotating ring. The two ends of the torsion spring are fixedly connected to the groove surface of the first mounting groove and the inner ring surface of the rotating ring, respectively.

[0009] Furthermore, a vibration component is provided on the outer peripheral surface of the insertion tube, and the vibration component acts on the connection between the insertion tube and the mouthpiece; the vibration component includes an airflow collection mechanism, a vibration mechanism and a transmission mechanism, the airflow collection mechanism is used to collect the gas exhaled by the patient, the vibration mechanism is used to apply vibration force to the mouthpiece, and the transmission mechanism is disposed between the airflow collection mechanism and the vibration mechanism, which can transfer the power generated by the airflow to the vibration mechanism.

[0010] Furthermore, the airflow collection mechanism includes an air-gathering box, a cover, and a connecting pipe. An installation platform is formed on the top of the fixed section of the insert tube. The air-gathering box is fixedly connected to the installation platform. One end of the connecting pipe is connected to the air-gathering box, and a one-way gas valve is provided at the connection. The other end of the connecting pipe extends along the length of the insert tube to the top of the mouthpiece, forming an extension end. The cover is connected to the extension end, and the cover is adapted to fit the patient's nose.

[0011] Furthermore, the vibration mechanism includes a fixed plate, a rotating rod, a vibrating rod, an extension plate, a positioning plate, and a sliding block. The fixed plate is disposed on the side of the gas-gathering box facing the mouthpiece, and is fixedly connected to the mounting platform. The rotating rod passes through the top of the fixed plate and is rotatably connected to the fixed plate. The rotating rod extends along the length direction of the insertion cylinder to the top of the insertion section of the insertion cylinder, forming an execution end. The end of the execution end has a head. The vibrating rod is distributed circumferentially on the circumferential side of the head. The extension plate is fixedly connected to the side of the fixed plate away from the gas-gathering box. The positioning plate is fixedly connected to the end of the free end of the extension plate. The sliding block is slidably connected to the positioning plate. The bottom end of the sliding block has an impact head. Elastic support members are provided on both sides of the sliding block to provide elastic support to the sliding block along the sliding direction. The free end of the vibrating rod is rotatably connected to a first contact wheel, and the top end of the sliding block is rotatably connected to a second contact wheel.

[0012] Furthermore, the elastic support includes a first fixing block, a second fixing block, and a spring. The first fixing block is fixedly connected to the side of the sliding block, the second fixing block is located below the first fixing block and fixedly connected to the positioning plate, and the spring is disposed between the first fixing block and the second fixing block, with both ends of the spring fixedly connected to the first fixing block and the second fixing block, respectively.

[0013] Furthermore, the transmission mechanism includes a rotor, a transmission component, and a triggering component. The rotor is disposed on the side of the gas-gathering box facing the fixed plate. The rotor is rotatably connected to the mounting platform. The rotor includes a rotating shaft and blades. The blades are distributed circumferentially on the outer circumferential surface of the rotating shaft. An air outlet is provided on the end face of the gas-gathering box facing the rotor, and the air outlet is directly opposite the blades. The transmission component is disposed between the rotor and the rotating rod to realize the synchronous rotation of the rotor and the rotating rod. The triggering component is disposed between the air outlet and the rotating ring to realize the opening and closing of the air outlet.

[0014] Furthermore, the transmission component includes a first pulley, a second pulley, a first bevel gear, a second bevel gear, and a transmission rod; the first pulley is sleeved on the end of the rotating rod facing the gas-gathering box, the second pulley is rotatably connected to the plate surface of the fixed plate facing the gas-gathering box, and belt drive is performed between the first pulley and the second pulley; the first bevel gear is sleeved on the outer circumferential surface of one end of the rotating shaft; the transmission rod is disposed between the first bevel gear and the second pulley, and the transmission rod is rotatably connected to the mounting platform; the second bevel gear is sleeved on the periphery of the transmission rod and meshes with the first bevel gear; the end of the transmission rod near the second pulley is coaxially and fixedly connected to the second pulley.

[0015] Furthermore, the triggering component includes a baffle plate, a rack, a gear, a third bevel gear, a fourth bevel gear, a third pulley, and a fourth pulley. The baffle plate is slidably connected to the inner wall of the gas-gathering box, and the baffle plate can block and seal the gas outlet. An installation cavity is opened in the fixed section of the plug-in cylinder. The installation cavity is "L" shaped. The vertical section of the installation cavity passes through the gas-gathering box, and the horizontal section of the installation cavity passes through the top end of the rotating shaft. The rack is slidably connected to the side wall of the vertical section of the installation cavity, and the top end of the rack is fixedly connected to the baffle plate. The gear is rotatably connected to the corner of the installation cavity, and the gear meshes with the rack. The third bevel gear is set in the horizontal section of the installation cavity and sleeved on the outer periphery of the rotating shaft. The third bevel gear is connected to the rotating ring through a connecting ring. The third bevel gear and the rotating ring rotate synchronously. The fourth bevel gear is set on one side of the third bevel gear and meshes with the third bevel gear. The third pulley and the fourth bevel gear are coaxially arranged, and the fourth pulley and the gear are coaxially arranged. The third pulley and the fourth pulley are belt driven together.

[0016] The beneficial effects of this invention are as follows: By incorporating an opening and closing mechanism, the internal channel of the connector 102 is closed during patient exhalation, and the medication mist collects in the nebulizer cup. During patient inhalation, the first valve plate 303 and the second valve plate 305 on both sides rotate, opening the internal channel of the connector 102. The medication mist then enters the patient's respiratory tract and lungs through the connector 102 and the mouthpiece 2. This prevents medication mist from entering the connector 102 and mouthpiece 2 during exhalation, thus avoiding medication waste. Furthermore, the collection of medication mist during exhalation increases its concentration, which is beneficial for increasing lung deposition. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the nebulized drug delivery device in Embodiment 1 of the present invention; Figure 2 This is a cross-sectional view of the nebulized drug delivery device in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the valve plate mechanism in Embodiment 1 of the present invention; Figure 4 for Figure 2 Enlarged view at point A2; Figure 5 for Figure 4 Enlarged view at point A3; Figure 6 for Figure 1 Enlarged view at point A1; Figure 7 for Figure 6 Enlarged view at A4 in the middle; Figure 8 for Figure 6 Enlarged view at A5 in the middle; Figure 9 This is a schematic diagram of the transmission component in Embodiment 1 of the present invention; Figure 10 for Figure 4 Enlarged view of section A6 in the middle.

[0019] Figure label: Atomizing cup 1, air outlet 101, connector 102, mounting platform 104, mouthpiece 2, rotating shaft 301, sealing strip 302, first valve plate 303, receiving groove 304, second valve plate 305, first mounting groove 306, rotating ring 307, sliding groove 308, slip ring 309, torsion spring 311, air gathering box 401, air outlet 4011, cover 402, connecting pipe 403, fixing plate 404, rotating rod 405, end 406, vibration rod 407, first contact wheel 408, extension Plate 409, positioning plate 410, sliding block 411, second contact wheel 412, first fixing block 413, second fixing block 414, spring 415, rotor 416, rotating shaft 417, blade 418, support plate 419, first pulley 420, second pulley 421, first bevel gear 422, second bevel gear 423, transmission rod 424, baffle plate 425, mounting cavity 426, rack 427, gear 428, third bevel gear 429, connecting ring 430, fourth bevel gear 431. Detailed Implementation

[0020] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0021] Example 1, specifically as follows Figures 1-10 As shown.

[0022] A nebulized drug delivery device includes a nebulizer cup 1, a mouthpiece 2, and an opening and closing assembly.

[0023] like Figure 1 , Figure 2 As shown, an air outlet 101 is provided on the top side wall of the atomizing cup 1, and the mist droplets generated inside the atomizing cup 1 are discharged through the air outlet 101. A connector 102 is provided at the air outlet 101. The connector 102 gradually rises towards the top of the atomizing cup 1 in a direction away from the air outlet 101, presenting an upward shape. The connector 102 is integrally formed with the atomizing cup 1, and the connector 102 is connected to the internal space of the atomizing cup 1 through the air outlet 101.

[0024] The insert tube 102 includes a fixed section and an insert section, which are sequentially connected in a direction away from the nebulizer cup 1. The outer diameter of the insert section is smaller than that of the fixed section, forming a limiting step between them. The mouthpiece 2 is inserted into the insert section and is limited by the limiting step, thereby fixing the mouthpiece 2. The mouthpiece 2 is used to guide the medicated mist directly to the lower respiratory tract through the mouth. The mouthpiece 2 is existing technology and will not be described in detail here.

[0025] The opening and closing assembly is disposed inside the plug-in cylinder 102. In this embodiment, the opening and closing assembly is located within the fixed section and close to the air outlet 101. The opening and closing assembly includes a valve plate mechanism and a rotary reset mechanism. The suction force generated by the intake acts on the valve plate mechanism to open the internal channel of the plug-in cylinder 102. The rotary reset mechanism is linked with the valve plate mechanism to close the internal channel of the plug-in cylinder 102.

[0026] like Figure 2 , Figure 3 As shown, the valve plate mechanism includes a rotating shaft 301, a sealing strip 302, a first valve plate 303, and a second valve plate 305. Both ends of the rotating shaft 301 extend into the inner wall of the insertion cylinder 102 and are fixedly connected to the insertion cylinder 102. The axis of the rotating shaft 301 intersects perpendicularly with the axis of the insertion cylinder 102. In this embodiment, the rotating shaft 301 extends vertically. Specifically, a shaft hole is provided on the inner wall of the insertion cylinder 102, which is adapted to the rotating shaft 301. Both ends of the rotating shaft 301 extend into the shaft hole and are connected and fixed using an interference fit.

[0027] Both the first valve plate 303 and the second valve plate 305 are arc-shaped and rotatably connected to the rotating shaft 301, allowing them to rotate towards or away from each other around the shaft 301. When the first valve plate 303 and the second valve plate 305 are in the unfolded state, i.e., when they are on the same horizontal plane, the normal direction of the surfaces of the first valve plate 303 and the second valve plate 305 is perpendicular to the axial direction of the insertion cylinder 102. At this time, the arc surface of the first valve plate 303 can fully contact the inner wall of the insertion cylinder 102, forming a seal between them. A gap remains between the arc surface of the second valve plate 305 and the inner wall of the insertion cylinder 102. An arc-shaped sealing strip 302 is disposed at the gap between the second valve plate 305 and the inner wall of the insertion cylinder 102, sealing the gap. The sealing strip 302 is fixedly connected to the inner wall of the insertion cylinder 102.

[0028] A receiving groove 304 is formed on the surface of the first valve plate 303 facing the side to which it rotates in opposite directions. The size of the receiving groove 304 is the same as the size of the surface of the second valve plate 305, and the thickness of the second valve plate 305 is less than the thickness of the first valve plate 303. When the first valve plate 303 and the second valve plate 305 rotate in opposite directions and approach each other, the first valve plate 303 can be completely or partially inserted into the receiving groove 304.

[0029] A rotary reset mechanism is disposed at both ends of the first valve plate 303 and the second valve plate 305, and the first valve plate 303 and the second valve plate 305 are rotated and reset through the rotary reset mechanism. The rotary reset mechanism includes a first mounting groove 306, a rotating ring 307, and a torsion spring 311, as shown below. Figure 4 , Figure 5 As shown, a first mounting groove 306 is coaxially formed on the outer circumferential surface of the rotating shaft 301, and the first mounting groove 306 is annular. A rotating ring 307 is disposed within the first mounting groove 306, and the axis of the rotating ring 307 coincides with the axis of the rotating shaft 301. Further explanation is needed, as the outer annular surface of the rotating ring 307 coincides with the outer circumferential surface of the rotating shaft 301. Both the first valve plate 303 and the second valve plate 305 are fixedly connected to the outer circumferential surface of the rotating ring 307.

[0030] A torsion spring 311 is disposed between the cylindrical groove surface of the first mounting groove 306 and the rotating ring 307, and the axis of the torsion spring 311 coincides with the axis of the rotating shaft 301. The two ends of the torsion spring 311 are fixedly connected to the groove surface of the first mounting groove 306 and the inner ring surface of the rotating ring 307, respectively.

[0031] To further enhance the stability of the rotating ring 307 during rotation, a positioning element is also provided between the groove wall of the receiving groove 304 and the end face of the rotating ring 307. For example... Figure 5 As shown, the positioning component includes a sliding groove 308 and a sliding ring 309. The sliding groove 308 is formed on the groove wall of the receiving groove 304 on the side away from the inner wall of the insertion cylinder 102. The sliding ring 309 is fixedly connected to one end face of the rotating ring 307. The sliding ring 309 extends into the sliding groove 308, and the two are slidably connected.

[0032] The working principle of the opening and closing assembly is as follows: In the initial state, the first valve plate 303 and the second valve plate 305 are in an unfolded state, thereby blocking the internal channel of the insertion tube 102, preventing the atomized drug mist in the atomizing cup 1 from passing through. During inhalation, under the action of negative pressure, the first valve plate 303 and the second valve plate 305 rotate relative to each other around the rotating shaft 301, opening the channel and allowing the drug mist to flow. In addition, by placing the opening and closing assembly near the air outlet 101, the drug mist adhering to the surfaces of the first valve plate 303 and the second valve plate 305 can accumulate and flow back into the atomizing cup 1 for re-atomization.

[0033] By incorporating an opening and closing mechanism, the internal channel of the connector 102 is closed during patient exhalation, and the medication mist collects in the nebulizer cup. During patient inhalation, the first valve plate 303 and the second valve plate 305 on both sides rotate, opening the internal channel of the connector 102. The medication mist then enters the patient's respiratory tract and lungs through the connector 102 and the mouthpiece 2. This prevents medication mist from entering the connector 102 and mouthpiece 2 during exhalation, thus avoiding medication waste. Furthermore, the collection of medication mist during exhalation increases its concentration, which is beneficial for increasing lung deposition.

[0034] In actual use, some of the medication mist inevitably adheres to the inner walls of the connector 102 and the mouthpiece 2. On the one hand, this reduces the amount of medication inhaled by the patient, affecting the treatment effect; on the other hand, it wastes the medication. Therefore, a vibration component is provided on the outer circumferential surface of the connector 102. This vibration component acts at the connection between the connector 102 and the mouthpiece 2, vibrating both components to reduce the adhesion of the medication mist.

[0035] The vibration assembly includes an airflow collection mechanism, a vibration mechanism, and a transmission mechanism. The airflow collection mechanism is used to collect the patient's exhaled air, the vibration mechanism is used to apply vibration force to the mouthpiece 2, and the transmission mechanism is located between the airflow collection mechanism and the vibration mechanism, which can transfer the power generated by the airflow to the vibration mechanism.

[0036] like Figure 1 , Figure 6 As shown, the airflow collection mechanism includes a gas-gathering box 401, a cover 402, and a connecting pipe 403. A flat mounting platform 104 is formed on the top of the fixed section of the insert tube 102, and the gas-gathering box 401 is fixedly connected to the mounting platform. One end of the connecting pipe 403 is connected to the gas-gathering box 401, and a one-way valve is provided at the connection point. The other end of the connecting pipe 403 extends along the length of the insert tube 102 to above the mouthpiece 2, forming an extension end. The cover 402 is connected to the extension end and is adapted to fit the patient's nose. During exhalation, the gas produced enters the gas-gathering box 401 through the connecting pipe 403. Due to the restriction of the one-way valve, the gas cannot flow out through the connecting pipe 403 after entering the gas-gathering box 401.

[0037] like Figure 7 As shown, the vibration mechanism includes a fixed plate 404, a rotating rod 405, a vibrating rod 407, an extension plate 409, a positioning plate 410, and a sliding block 411. The fixed plate 404 is disposed on the side of the gas-gathering box 401 facing the mouthpiece 2, and is fixedly connected to the mounting platform 104. The rotating rod 405 passes through the top of the fixed plate 404 and is rotatably connected to the fixed plate 404. The rotating rod 405 extends along the length of the insertion cylinder 102 to above the insertion section of the insertion cylinder 102, forming an actuating end. The actuating end has a head 406, which is disc-shaped, and the axis of the head 406 coincides with the axis of the rotating rod 405. The vibrating rods 407 are evenly distributed along the circumferential direction on the circumferential surface of the head 406, and extend radially along the head 406.

[0038] The extension plate 409 is fixedly connected to the side of the fixed plate 404 away from the gas-gathering box 401, and the extension plate 409 extends in the same direction as the rotating rod 405. The positioning plate 410 is fixedly connected to the free end of the extension plate 409, and the sliding block 411 is slidably connected to the side of the positioning plate 410 away from the extension plate 409 in the vertical direction. The bottom end of the sliding block 411 forms an impact head, which can impact the outer wall of the mouthpiece 2.

[0039] Elastic support members are provided on both sides of the sliding block 411, which provide elastic support to the sliding block 411 along the sliding direction. Figure 7 As shown, the elastic support includes a first fixing block 413, a second fixing block 414, and a spring 415. The first fixing block 413 is fixedly connected to the side of the sliding block 411. The second fixing block 414 is located below the first fixing block 413 and is fixedly connected to the side of the positioning plate 410 opposite to the extension plate 409. The spring 415 is disposed between the first fixing block 413 and the second fixing block 414. The spring 415 extends vertically, and its two ends are fixedly connected to the first fixing block 413 and the second fixing block 414, respectively.

[0040] The free end of the vibrating rod 407 away from the end 406 is rotatably connected to a first contact wheel 408, and the top end of the sliding block 411 is rotatably connected to a second contact wheel 412. In this embodiment, both the first contact wheel 408 and the second contact wheel 412 are mounted using upright plates, which are distributed on both sides.

[0041] like Figure 8 As shown, the transmission mechanism includes a rotor 416, a transmission component, and a triggering component. The rotor 416 is located on the side of the gas-gathering box 401 facing the fixed plate 404, and is rotatably connected to the mounting platform 104. Specifically, the rotor 416 includes a rotating shaft 417 and blades 418. The blades 418 are evenly distributed along the circumferential direction on the outer circumferential surface of the rotating shaft 417. Both ends of the rotating shaft 417 are supported by support plates 419, which are fixedly connected to the mounting platform 104. The rotating shaft 417 is rotatably connected to the top of the support plates 419. An air outlet 4011 is provided at the bottom of the end face of the gas-gathering box 401 facing the rotor 416. The air outlets 4011 are spaced parallel to the axis of the rotating shaft 417 and are directly opposite the blades 418.

[0042] The transmission component is located between the rotor 416 and the rotating rod 405, such as... Figure 8 , Figure 9As shown, the transmission components include a first pulley 420, a second pulley 421, a first bevel gear 422, a second bevel gear 423, and a transmission rod 424. The first pulley 420 is sleeved on the end of the rotating rod 405 facing the gas collecting box 401, and the second pulley 421 is rotatably connected to the plate surface of the fixed plate 404 facing the gas collecting box 401. The first pulley 420 and the second pulley 421 are connected by a transmission belt to achieve belt drive.

[0043] The first bevel gear 422 is sleeved on the outer circumferential surface of one end of the rotating shaft 417. The transmission rod 424 is disposed between the first bevel gear 422 and the second pulley 421. The transmission rod 424 is rotatably connected to the mounting platform 104. The second bevel gear 423 is sleeved on the end of the transmission rod 424 near the first bevel gear 422. The second bevel gear 423 meshes with the first bevel gear 422. The end of the transmission rod 424 near the second pulley 421 is coaxially and fixedly connected to the second pulley 421.

[0044] A triggering component is disposed between the air outlet 4011 and the rotating ring 307 to realize the opening and closing of the air outlet 4011. The triggering component includes a baffle plate 425, a rack 427, a gear 428, a third bevel gear 429, a fourth bevel gear 431, a third pulley, and a fourth pulley.

[0045] like Figure 10 As shown, the baffle plate 425 is slidably connected to the inner wall of the gas-gathering box 401 in the vertical direction, and the baffle plate 425 can block and seal the air outlet 4011. The fixed section of the plug-in tube 102 has an installation cavity 426, which is L-shaped. The vertical section of the installation cavity 426 passes through the gas-gathering box 401, and the horizontal section of the installation cavity 426 passes through the top end of the rotating shaft 301.

[0046] The rack 427 is slidably connected to the side wall of the vertical section of the mounting cavity 426, and the top end of the rack 427 is fixedly connected to the baffle plate 425. The gear 428 is rotatably connected to the corner of the mounting cavity 426, and the gear 428 meshes with the rack 427.

[0047] The third bevel gear 429 is disposed within the horizontal section of the mounting cavity 426 and sleeved around the rotating shaft 301. The third bevel gear 429 is connected to the rotating ring 307 via a connecting ring 430, and the third bevel gear 429 and the rotating ring 307 rotate synchronously. The fourth bevel gear 431 is disposed on one side of the third bevel gear 429 and meshes with it. The axis of the fourth bevel gear 431 is parallel to the axis of the gear 428, and the fourth bevel gear 431 is rotatably connected to the side wall of the mounting cavity 426. The third pulley is coaxially arranged with the fourth bevel gear 431, and the two rotate synchronously. The fourth pulley is coaxially arranged with the gear 428, and the two can rotate synchronously. A transmission belt connects the third and fourth pulleys to achieve belt drive.

[0048] The working principle of the vibration assembly is as follows: Air exhaled from the patient's nose enters the gas-gathering box 401 through the connecting pipe 403. Due to the presence of the one-way valve, the gas in the gas-gathering box 401 cannot flow out through the connecting pipe 403. When the patient inhales, the rotating ring 307 rotates, driving the third bevel gear 429 and the fourth bevel gear 431 to rotate synchronously. Under the action of the belt drive, gear 428 rotates. Gear 428 drives the rack 427 and the baffle plate 425 to undergo vertical displacement, opening the air outlet 4011. The gas in the gas-gathering box 401 flows out through the air outlet 4011 and drives the rotor 416 to rotate, thereby causing the rotating rod 405 and the vibrating rod 407 to rotate. During rotation, the vibrating rod 407 pushes the sliding block 411 downward, impacting the mouthpiece 2, thus causing the mouthpiece 2 to vibrate.

[0049] By incorporating a vibration component, the insert tube 102 and mouthpiece 2 vibrate during inhalation, reducing the amount of medication adhering to the inner walls of the insert tube 102 and mouthpiece 2. This effectively increases the patient's inhalation volume, ensuring therapeutic efficacy. Furthermore, it reduces medication waste and improves medication utilization.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A nebulized drug delivery device, characterized in that, Includes atomizing cup, mouthpiece, and opening / closing assembly; A connector tube is connected to the top side wall of the atomizing cup. The connector tube includes a fixed section and a connector section, and the fixed section and the connector section are connected sequentially in a direction away from the atomizing cup. The mouthpiece is inserted into the insertion section of the insertion tube; The opening and closing assembly is disposed within the fixed section of the plug-in cylinder. The opening and closing assembly includes a valve plate mechanism and a rotary reset mechanism. The suction force generated by the air intake acts on the valve plate mechanism to open the internal channel of the plug-in cylinder. The rotary reset mechanism is linked with the valve plate mechanism to close the internal channel of the plug-in cylinder.

2. The nebulized drug delivery device according to claim 1, characterized in that, The valve plate mechanism includes a rotating shaft, a sealing strip, a first valve plate, and a second valve plate. Both ends of the rotating shaft extend into the inner wall of the insertion cylinder and are fixedly connected to the insertion cylinder. The first valve plate and the second valve plate are both arc-shaped and rotatably connected to the rotating shaft. They can rotate around the rotating shaft in opposite directions or in opposite directions. The sealing strip is set at the gap between the second valve plate and the inner wall of the insertion cylinder to seal the gap. The sealing strip is fixedly connected to the inner wall of the insertion cylinder. A receiving groove is opened on the plate surface of the first valve plate facing the side of the opposite rotation. The size of the receiving groove is the same as the plate surface size of the second valve plate.

3. The nebulized drug delivery device according to claim 2, characterized in that, The rotary reset mechanism is disposed at both ends of the first valve plate and the second valve plate. The rotary reset mechanism includes a first mounting groove, a rotating ring and a torsion spring. The first mounting groove is coaxially opened on the outer peripheral surface of the rotating shaft. The rotating ring is disposed in the first mounting groove. The first valve plate and the second valve plate are both fixedly connected to the outer peripheral surface of the rotating ring. The torsion spring is disposed between the groove surface of the first mounting groove and the rotating ring. The two ends of the torsion spring are fixedly connected to the groove surface of the first mounting groove and the inner ring surface of the rotating ring, respectively.

4. The nebulized drug delivery device according to claim 2, characterized in that, The outer circumferential surface of the insertion tube is provided with a vibration component, which acts on the connection between the insertion tube and the mouthpiece. The vibration component includes an airflow collection mechanism, a vibration mechanism, and a transmission mechanism. The airflow collection mechanism is used to collect the gas exhaled by the patient. The vibration mechanism is used to apply vibration force to the mouthpiece. The transmission mechanism is located between the airflow collection mechanism and the vibration mechanism and can transfer the power generated by the airflow to the vibration mechanism.

5. The nebulizing drug delivery device according to claim 4, characterized in that, The airflow collection mechanism includes an air-gathering box, a cover, and a connecting pipe. An installation platform is formed on the top of the fixed section of the insert tube. The air-gathering box is fixedly connected to the installation platform. One end of the connecting pipe is connected to the air-gathering box, and a one-way gas valve is provided at the connection. The other end of the connecting pipe extends along the length of the insert tube to the top of the mouthpiece, forming an extension end. The cover is connected to the extension end, and the cover is adapted to fit the patient's nose.

6. The nebulized drug delivery device according to claim 5, characterized in that, The vibration mechanism includes a fixed plate, a rotating rod, a vibrating rod, an extension plate, a positioning plate, and a sliding block. The fixed plate is located on the side of the gas-gathering box facing the mouthpiece and is fixedly connected to the mounting platform. The rotating rod passes through the top of the fixed plate and is rotatably connected to it. The rotating rod extends along the length of the insert cylinder to above the insert section of the insert cylinder, forming an execution end. The end of the execution end has a head. The vibrating rod is distributed circumferentially on the circumferential side of the head. The extension plate is fixedly connected to the side of the fixed plate away from the gas-gathering box. The positioning plate is fixedly connected to the free end of the extension plate. The sliding block is slidably connected to the positioning plate. The bottom end of the sliding block has an impact head. Elastic support members are provided on both sides of the sliding block to provide elastic support to the sliding block along the sliding direction. The free end of the vibrating rod is rotatably connected to a first contact wheel, and the top end of the sliding block is rotatably connected to a second contact wheel.

7. The nebulizing drug delivery device according to claim 6, characterized in that, The elastic support includes a first fixing block, a second fixing block, and a spring. The first fixing block is fixedly connected to the side of the sliding block. The second fixing block is located below the first fixing block and is fixedly connected to the positioning plate. The spring is disposed between the first fixing block and the second fixing block, and both ends of the spring are fixedly connected to the first fixing block and the second fixing block, respectively.

8. The nebulizing drug delivery device according to claim 6, characterized in that, The transmission mechanism includes a rotor, a transmission component, and a triggering component. The rotor is located on the side of the gas-gathering box facing the fixed plate and is rotatably connected to the mounting platform. The rotor includes a rotating shaft and blades. The blades are distributed circumferentially on the outer circumferential surface of the rotating shaft. An air outlet is provided on the end face of the gas-gathering box facing the rotor, and the air outlet is directly opposite the blades. The transmission component is located between the rotor and the rotating rod to realize the synchronous rotation of the rotor and the rotating rod. The triggering component is located between the air outlet and the rotating ring to realize the opening and closing of the air outlet.

9. The nebulizing drug delivery device according to claim 8, characterized in that, The transmission component includes a first pulley, a second pulley, a first bevel gear, a second bevel gear, and a transmission rod. The first pulley is sleeved on the end of the rotating rod facing the gas-gathering box. The second pulley is rotatably connected to the plate surface of the fixed plate facing the gas-gathering box. The first pulley and the second pulley drive a belt. The first bevel gear is sleeved on the outer circumferential surface of one end of the rotating shaft. The transmission rod is disposed between the first bevel gear and the second pulley. The transmission rod is rotatably connected to the mounting platform. The second bevel gear is sleeved on the periphery of the transmission rod and meshes with the first bevel gear. The end of the transmission rod near the second pulley is coaxially and fixedly connected to the second pulley.

10. The nebulizing drug delivery device according to claim 9, characterized in that, The triggering component includes a baffle plate, a rack, a gear, a third bevel gear, a fourth bevel gear, a third pulley, and a fourth pulley. The baffle plate is slidably connected to the inner wall of the gas-gathering box and can block and seal the gas outlet. An installation cavity is opened in the fixed section of the plug-in cylinder. The installation cavity is "L" shaped. The vertical section of the installation cavity passes through the gas-gathering box, and the horizontal section of the installation cavity passes through the top end of the rotating shaft. The rack is slidably connected to the side wall of the vertical section of the installation cavity, and the top end of the rack is fixedly connected to the baffle plate. The gear is rotatably connected to the corner of the installation cavity and meshes with the rack. The third bevel gear is set in the horizontal section of the installation cavity and sleeved on the outer periphery of the rotating shaft. The third bevel gear is connected to the rotating ring through a connecting ring and rotates synchronously with the rotating ring. The fourth bevel gear is set on one side of the third bevel gear and meshes with the third bevel gear. The third pulley and the fourth bevel gear are coaxially arranged, and the fourth pulley and the gear are coaxially arranged. The third pulley and the fourth pulley are belt driven together.

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