Medical medicine powder spraying device

Abstract

The invention discloses a medical medicine powder spraying device which comprises a pressure kettle, a respirator and a rotary quantitative powder atomizing nozzle, the outer side of the pressure kettle is fixedly sleeved with a holding sleeve, the top end of the pressure kettle is fixedly provided with a first threaded connector, and the top of the first threaded connector is in threaded sealing sleeve connection with a first connecting cap; the top end of the first connecting cap communicates with a communicating cap, and an air pressure sensor is fixedly installed at the top of an inner cavity of the communicating cap. The first worm drives the first worm gear to promote the spiral conveying rod to rotate, then the structure is driven to operate, the structure is conveniently driven to operate through the turbine blades, the turbine blades can capture airflow power to promote the first worm to rotate, and then the spiral conveying rod is promoted to rotate through a speed reduction transmission structure of the first worm and the first worm gear. And therefore, the conical threaded plate is matched to enable the medicine powder to be in uniform contact with the airflow, the airflow can conveniently take out the medicine powder, and spraying is conveniently matched.

Description

Technical Field

[0001] This invention relates to the field of medical drug powder spraying technology, specifically to a medical drug powder spraying device. Background Technology

[0002] Medical drug powder spraying is a drug delivery technology that uses micronized therapeutic drugs (usually combined with carrier excipients such as lactose) to disperse the drug into fine particles of 1-5μm and spray them out in a measured and constant rate using specialized equipment such as dry powder inhalers or pressurized metered powder inhalers. This allows the drug to be directly deposited on the respiratory tract or lung mucosa, achieving targeted therapy. It has the advantages of rapid onset of action and few systemic side effects, and is widely used in the clinical treatment of respiratory diseases such as asthma and COPD. However, it also has technical drawbacks such as requirements for inspiratory flow rate, easy agglomeration of powder due to moisture, and device residue.

[0003] Medical drug powder sprays are suitable as an adjunct to the treatment of respiratory diseases, including powder and liquid sprays. However, most powders lack active driving force and rely entirely on the flow rate and force of the patient's inhalation. When the inhalation flow rate is insufficient in elderly people, children, and patients with acute asthma exacerbations such as COPD, the drug powder cannot be effectively dispersed into microparticles, and most of it is deposited in the throat, resulting in a very low lung delivery rate and significantly reduced efficacy. Furthermore, existing powder flow nozzles are not detachable, making cleaning difficult, and residual powder is prone to bacterial growth. They cannot be disassembled and replaced as needed, nor can liquid and powder be interchanged, causing many inconveniences. Based on this, a medical drug powder spray device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a medical drug powder spraying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a medical drug powder spraying device, comprising a pressure vessel, a breathing mask, and a rotary metering powder atomizing nozzle. A grip sleeve is fixedly fitted to the outer side of the pressure vessel. A threaded connector is fixedly installed at the top of the pressure vessel. A connecting cap is threadedly and sealingly fitted to the top of the threaded connector. A connecting cap is connected to the top of the connecting cap. A pressure sensor is fixedly installed at the top of the inner cavity of the connecting cap. A connecting rod is fixedly installed on one side of the connecting cap. A pressurizing air cylinder is fixedly installed at the top of the inner cavity of the connecting cap. A connecting pipe is fixedly installed at the bottom of the connecting cap. A spray chamber is formed inside the connecting rod. A beam cavity is fixedly installed inside the spray chamber. A flow sensor is located in the middle of the beam cavity. A trigger valve is installed in the middle of the beam cavity. The spray chamber is located away from the beam cavity. One end of the nozzle is connected to a threaded connector three. The bottom of the nozzle is connected to two connectors four. The top of the nozzle is connected to a threaded connector two. A powder container is threadedly sealed to the top of the threaded connector two. A sealing cone is fixedly installed at the bottom of the inner cavity of the powder container. A solenoid valve is installed inside the threaded connector two. A spiral conveyor rod is movably installed inside the threaded connector two. A cone head is fixedly installed at the top of the spiral conveyor rod. A tapered threaded plate is fixedly sleeved on the outer side of the spiral conveyor rod. A worm wheel one is fixedly sleeved on the outer side of the bottom end of the spiral conveyor rod. A worm one meshes with the outer side of the worm wheel one. A cross is rotatably sleeved on the outer side of the other end of the worm one. Several turbine blades are fixedly installed on the outer side of the end of the worm one away from the worm wheel one. Several baffles are fixedly installed on the outer side of the bottom end of the spiral conveyor rod.

[0006] One end of the worm gear is connected to a connecting cap two, and the top end of the rotary quantitative powder atomizing nozzle is connected to a connecting cap three.

[0007] Preferably, the operating lever of the pressurizing air cylinder moves through the pressurizing air cylinder and extends to the top of the connecting cap, the connecting tube is sleeved on the inner side of the connecting cap, and the connecting tube is sleeved on the outer side of the pressurizing air cylinder.

[0008] Preferably, the cavity is a double-expanded flow guide cavity with a cylindrical hole in the middle of the two flared mouths. The pressure vessel and the powder vessel are both provided with scale lines on their outer sides. One end of the cavity is connected to the inside of the connecting cap.

[0009] Preferably, the trigger valve is movably mounted on the connecting rod and extends to the bottom of the connecting rod, and the flow sensor is located on the opposite side of the connecting cap and the trigger valve.

[0010] Preferably, an adjustment mechanism is provided on one side of the trigger valve. The adjustment mechanism includes an adjustment rod and a baffle. Both ends of the adjustment rod are provided with sealing grooves. A knob head is fixedly installed on the outer side of both ends of the adjustment rod. The adjustment rod is rotatably and sealed inside the connecting rod through the sealing grooves. A worm gear blade is fixedly installed on the outer side of the adjustment rod. A connecting column is fixedly installed on the inner side of the baffle. A rotating baffle is movably sleeved on the outer side of the connecting column. A worm gear tooth is fixedly installed on the outer edge of the rotating baffle. The outer side of the worm gear tooth meshes with the outer side of the worm gear blade for transmission. The specifications and dimensions of the baffle and the worm gear tooth are adapted to the specifications and dimensions of the beam cavity. The baffle is fixedly installed inside the beam cavity. The baffle and the rotating baffle are both evenly distributed circumferentially.

[0011] Preferably, the threaded connector three is fixedly installed on the outside of the connecting rod, and the specifications and dimensions of the connecting cap two and the connecting cap three are adapted to the specifications and dimensions of the threaded connector three. A bracket is fixedly installed at the bottom of the connecting rod away from the connecting cap, and a sleeve is fixedly installed at the bottom of the bracket. The sleeve is movably fitted on the outside of the pressure vessel, and the bottom of the sleeve abuts against the top of the grip.

[0012] Preferably, both of the four connectors are threaded with sealing caps on their outer sides, and the two connectors are distributed on both sides of the spiral conveyor rod.

[0013] Preferably, the dimensions of the sealing cone are compatible with those of the threaded connector two. The spiral conveying rod is movably sleeved inside the threaded connector two. The cone head is located at the bottom of the solenoid valve. The bottom end of the spiral conveying rod is rotatably mounted at the bottom of the spray chamber through a bearing seat. The tapered threaded plate is located at the bottom of the threaded connector two. The cross is fixedly mounted inside the spray chamber. The turbine blades are evenly distributed circumferentially on the outside of the worm gear one. The turbine blades and the spray chamber are concentric circles.

[0014] Preferably, an electrically controlled telescopic rod is fixedly installed at the bottom of the inner cavity of the spray chamber, and a stop block is fixedly installed at the top of the electrically controlled telescopic rod. The stop bars are linearly distributed in a stepped manner of unequal length on the outside of the spiral conveyor rod.

[0015] Preferably, a battery compartment is fixedly installed at the bottom of the connecting rod, a display screen is fixedly installed on one side of the connecting rod, a circuit control board is integrated at the bottom of the display screen, and several buttons are provided on the outside of the connecting rod, the buttons being linearly and evenly distributed on the outside of the display screen.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When using the device, the user covers the outside of the mouth and nose with the breathing mask and inhales, thereby detecting the inhaled airflow rate through the flow sensor. Then, the connecting cap one is screwed onto the top of the threaded connector one, and the user continues to inhale. The negative pressure of the inhaled air during use is detected by the air pressure sensor, which recommends the pressure value inside the pressure vessel and the adjustment size of the adjustment mechanism. Finally, the breathing mask is screwed onto the outside of the threaded connector three through the connecting cap two. The air pressure inside the pressure vessel is pressurized by pressing the handle of the pressurizing cylinder. After reaching the required pressure, the breathing mask or the rotary metering powder atomizing nozzle is used according to the medication needs. When administering the medication, the breathing mask is placed outside the mouth and nose, or the rotary metering powder atomizing nozzle is inserted into the expansion area after the lips are closed in the oral cavity, and then the hand is held... Hold the grip and use your index finger to pull the trigger valve to release the air pressure. The air pressure is introduced into the beam cavity through the connecting tube, and after being guided and balanced inside the beam cavity, the airflow drives the turbine blades to rotate, which in turn drives the worm gear to rotate. After the transmission and deceleration of the worm gear and worm wheel, the spiral conveyor rod is caused to rotate. At this time, the solenoid valve opens and the powder inside the powder container is guided to be evenly introduced into the spray chamber through the cone and spiral conveyor rod. Then, the contact between the powder and the airflow is expanded by the rotation of the conical thread plate. After the powder is mixed with the airflow in the spray chamber, it is discharged through the threaded connector and finally discharged through the breathing mask or the rotary metering powder atomizing nozzle. The user inhales simultaneously and the powder is then introduced into the respiratory system. The overall mixing efficiency is high, and it is easy to use, maintain and clean. The nozzle can be replaced as needed to reduce drug waste. 2. During use, the worm gear drives the worm wheel to rotate the spiral conveyor rod, which in turn drives the structure. The turbine blades can capture the power of the airflow to drive the worm gear to rotate. The speed reduction transmission structure of the worm gear and worm wheel drives the spiral conveyor rod to rotate, which applies a rotational spreading power to the powder. This, combined with the conical threaded plate, ensures that the powder and airflow are in uniform contact, making it easy for the airflow to carry the powder out and facilitate spraying. 3. The nested design of the pressurizing cylinder and connecting pipe reduces redundant space occupation, and the miniaturized and optimized structure of the pressurizing cylinder and connecting pipe facilitates unaffected airflow and liquid flow. The whole is compact and convenient, and can be used for two purposes. Attached Figure Description

[0017] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the three-dimensional appearance structure of the present invention from a rear-view or upward-view perspective.

[0019] Figure 3 This is a front sectional view of the internal structure of the present invention.

[0020] Figure 4This is a schematic diagram of the three-dimensional appearance structure of the breathing mask of the present invention.

[0021] Figure 5 This is a schematic diagram of the three-dimensional appearance of the rotary quantitative powder atomizing nozzle of the present invention.

[0022] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point B.

[0024] Figure 8 For the present invention Figure 3 Enlarged structural diagram at point C.

[0025] Figure 9 This is a three-dimensional structural diagram of the adjustment mechanism of the present invention.

[0026] In the diagram: 1. Pressure vessel; 2. Grip; 3. Scale line; 4. Threaded connector one; 5. Connecting cap one; 6. Connecting cap; 7. Connecting rod; 8. Threaded connector two; 9. Powder container; 10. Button; 11. Display screen; 12. Threaded connector three; 13. Bracket; 14. Adjustment mechanism; 1401. Adjustment rod; 1402. Worm gear blade; 1403. Knob head; 1404. Baffle plate; 1405. Rotary baffle; 1406. Sealing groove; 1407. Worm gear tooth; 1408. Connecting column; 15. Trigger valve; 16. Hoop; 17. Pressurization 18. Air cylinder; 19. Connector 4; 20. Sealing cap; 21. Connecting pipe; 22. Battery compartment; 23. Flow sensor; 24. Sealing cone; 25. Spiral conveyor rod; 26. Tapered threaded plate; 27. Cone head; 28. Spray chamber; 29. ​​Worm gear 1; 20. Worm 1; 21. Cross; 32. Turbine blade; 33. Beam cavity; 34. Air pressure sensor; 35. Electrically controlled telescopic rod; 36. Stop block; 37. Stop bar; 38. Solenoid valve; 39. Breathing mask; 30. Connecting cap 2; 30. Connecting cap 3; 31. Rotary metering powder atomizing nozzle. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-9This invention provides a technical solution: a medical drug powder spraying device, including a pressure vessel 1, a breathing mask 36, and a rotary metering powder atomizing nozzle 39. A grip sleeve 2 is fixedly sleeved on the outside of the pressure vessel 1. A threaded connector 4 is fixedly installed at the top of the pressure vessel 1. A connecting cap 5 is threadedly sealed to the top of the threaded connector 4. A connecting cap 6 is connected to the top of the connecting cap 5. A pressure sensor 31 is fixedly installed at the top of the inner cavity of the connecting cap 6. A connecting rod 7 is fixedly installed on one side of the connecting cap 6. A pressurizing cylinder 17 is fixedly installed at the top of the inner cavity of the connecting cap 6. A connecting pipe 20 is fixedly installed at the bottom of the connecting cap 6. A spray chamber 25 is opened inside the connecting rod 7. A bundle cavity 30 is fixedly installed inside the spray chamber 25. A flow sensor 22 is arranged in the middle of the bundle cavity 30. A trigger valve 15 is installed in the middle of the bundle cavity 30. A threaded connector is connected to the end of the spray chamber 25 away from the bundle cavity 30. The bottom of the spray chamber 25 is connected to two connectors 18. The top of the spray chamber 25 is connected to a threaded connector 8. The top of the threaded connector 8 is threadedly sealed with a powder container 9. A sealing cone 23 is fixedly installed at the bottom of the inner cavity of the powder container 9. A solenoid valve 35 is installed inside the threaded connector 8. A spiral conveyor rod 24 is movably installed inside the threaded connector 8. A cone head 2402 is fixedly installed at the top of the spiral conveyor rod 24. A tapered threaded plate 2401 is fixedly sleeved on the outside of the spiral conveyor rod 24. A worm gear 26 is fixedly sleeved on the outside of the bottom end of the spiral conveyor rod 24. A worm 27 meshes with the outside of the worm gear 26. A cross 28 is rotatably sleeved on the outside of the other end of the worm 27. Several turbine blades 29 are fixedly installed on the outside of the end of the worm 27 away from the worm gear 26. Several baffles 34 are fixedly installed on the outside of the bottom end of the spiral conveyor rod 24.

[0029] One end of the worm gear 26 is connected to the connecting cap 37, and the top of the rotary metering powder atomizing nozzle 39 is connected to the connecting cap 38.

[0030] The working principle of the above technical solution is as follows: During use, the user places the powder to be sprayed inside the powder container 9 and screws it to the top of the threaded connector 2 8. The user places the breathing mask 36 over their mouth and nose and inhales, allowing the flow sensor 22 to detect the inhaled airflow rate. Then, the connecting cap 5 is screwed onto the top of the threaded connector 4, and the user continues to inhale, allowing the pressure sensor 31 to detect the negative pressure of the inhaled air. The pressure inside the pressure container 1 and the adjustment mechanism 14 are adjusted to match the air pressure and gas flow rate to the user's inhalation. Finally, the breathing mask 36 is screwed onto the outside of the threaded connector 3 12 via the connecting cap 2 37. The pressure inside the pressure container 1 is pressurized using the pressurizing handle of the pressurizing cylinder 17. Once the required pressure is reached, either the breathing mask 36 or the rotary metering powder atomizing nozzle 39 is used, installed on the outside of the threaded connector 3 12 via the connecting caps 2 37 and 3 38 respectively. When administering the medication, the breathing mask 36 is placed over the mouth and nose. The air pressure is released by inserting the rotary metering powder atomizing nozzle 39 into the lateral nasal cavity, or into the lip-closed expansion area of ​​the oral cavity. The hand then grips the grip sleeve 2 and uses the index finger to pull the trigger valve 15. The air pressure is introduced into the beam cavity 30 through the connecting pipe 20, and after being guided and balanced within the beam cavity 30, it drives the turbine blades 29 to rotate, which in turn drives the worm gear 27 to rotate. After being driven and slowed down by the worm gear 27 and the worm wheel 26, the spiral conveyor rod 24 rotates. At this time, the solenoid valve 35 is activated to open the powder guide flow inside the powder container 9. The powder is evenly introduced into the spray chamber 25 through the cone head 2402 and the spiral conveyor rod 24. Then, the contact between the powder and the airflow is expanded by the rotation of the conical threaded plate 2401. After the powder is mixed with the airflow in the spray chamber 25, it is discharged through the threaded connector 12. Finally, it is discharged through the breathing mask 36 or the rotary metering powder atomizing nozzle 39. The user inhales simultaneously, and the powder is then introduced into the respiratory system. The overall mixing efficiency is high, and it is easy to use, maintain and clean. The nozzle can be replaced as needed, reducing drug waste.

[0031] In another implementation scheme, such as Figures 1-8 As shown, the operating lever of the pressurized air cylinder 17 moves through the pressurized air cylinder 17 and extends to the top of the connecting cap 6. The connecting pipe 20 is sleeved on the inner side of the connecting cap 5 and on the outer side of the pressurized air cylinder 17.

[0032] The pressurizing cylinder 17 adopts the pressurizing cylinder structure of a traditional pressure sprayer, which has the advantages of simple structure and convenient operation. The operating lever extends to the top of the connecting cap 6 for easy operation. The connecting pipe 20 plays the role of air pressure conduction, and when the pressure vessel 1 is filled with liquid, it can play the role of liquid guide pipe. The nested design of the pressurizing cylinder 17 and the connecting pipe 20 reduces space occupation. Furthermore, the pressurizing cylinder 17 and the connecting pipe 20 have an optimized structure, which makes it easy for airflow and liquid flow to be unaffected. The whole is compact and convenient.

[0033] In another implementation scheme, such as Figures 1-7 As shown, the beam cavity 30 is a double-expanded guide cavity with a cylindrical hole in the middle of the two flared mouths. The pressure pot 1 and the powder pot 9 are both provided with scale lines 3 on the outside. One end of the beam cavity 30 is connected to the inside of the connecting cap 6.

[0034] The double-expanded flow guide cavity shape of the bundle cavity 30 facilitates the centralized rectification of the airflow introduced from the connecting cap 6 and its even discharge through the outer expanded opening, which facilitates the uniform discharge of powder and thus stabilizes the structure. The pressure vessel 1 and the powder vessel 9 are both made of transparent material, which makes it easy to check the measurement of liquid and powder according to the scale line 3, making it easy to add the dosage at one time and facilitate the operation.

[0035] In another implementation scheme, such as Figures 1-3 As shown, the trigger valve 15 is movably mounted on the connecting rod 7 and extends to the bottom of the connecting rod 7, and the flow sensor 22 is located on the opposite side of the connecting cap 6 and the trigger valve 15.

[0036] The trigger valve 15 uses a trigger-operated valve space opening mechanism. Using existing technology, the size of the trigger determines the size of the opening and the flow guide, which facilitates auxiliary control and increases the usability of the structure. The flow sensor 22 measures the airflow through the cavity 30, which facilitates auxiliary measurement and helps users control the spraying of the pesticide, reducing waste and thus indirectly ensuring the efficiency of use.

[0037] In another implementation scheme, such as Figures 1-9 As shown, an adjusting mechanism 14 is provided on one side of the trigger valve 15. The adjusting mechanism 14 includes an adjusting rod 1401 and a baffle 1404. Sealing grooves 1406 are provided at both ends of the adjusting rod 1401. A knob head 1403 is fixedly installed on the outer side of both ends of the adjusting rod 1401. The adjusting rod 1401 is rotatably and sealingly installed inside the connecting rod 7 through the sealing grooves 1406. A worm gear blade 1402 is fixedly installed on the outer side of the adjusting rod 1401, and a [missing information - likely a worm gear blade] is fixedly installed on the inner side of the baffle 1404. A connecting post 1408 is connected to a rotating baffle 1405 on its outer side. A worm gear tooth 1407 is fixedly installed on the outer edge of the rotating baffle 1405. The outer side of the worm gear tooth 1407 meshes with the outer side of the worm blade 1402 for transmission. The dimensions of the baffle 1404 and the worm gear tooth 1407 are adapted to the dimensions of the bundle cavity 30. The baffle 1404 is fixedly installed inside the bundle cavity 30. Both the baffle 1404 and the rotating baffle 1405 are evenly distributed circumferentially.

[0038] The adjustment mechanism 14 is an optional structure. When the adjustment mechanism 14 is placed inside the spray chamber 25, rotating the knob head 1403 causes the adjustment rod 1401 to rotate, which in turn drives the worm blade 1402 to rotate. Through the meshing of the worm blade 1402 and the worm gear 1407, the worm gear 1407 is gradually pushed to rotate, thereby driving the rotating baffle 1405 to rotate. The rotating baffle 1405 rotates under the support of the connecting column 1408. The obstruction gap between the rotating baffle 1405 and the baffle plate 1404 changes, thereby changing the obstruction area of ​​the spray chamber 25 channel by the adjustment mechanism 14, thus achieving the function of adjusting the space channel. This makes it convenient for users to open the space size. When the user has difficulty controlling the size of the trigger valve 15 by hand, the adjustment mechanism 14 is placed inside the modified product. According to the air pressure and airflow, the user can adjust the outlet size of the adjustment mechanism 14 to help restrict the airflow or liquid passage. The addition of the adjustment mechanism 14 changes the solution to two product styles, which facilitates the improvement of the structural use effect and increases the product solution.

[0039] In another implementation scheme, such as Figures 1-5 As shown, threaded connector 12 is fixedly installed on the outside of connecting rod 7. The specifications and dimensions of connecting cap 37 and connecting cap 38 are adapted to the specifications and dimensions of threaded connector 12. A bracket 13 is fixedly installed at the bottom of the connecting rod 7 away from the connecting cap 6. A sleeve 16 is fixedly installed at the bottom of the bracket 13. The sleeve 16 is movably sleeved on the outside of pressure vessel 1. The bottom of the sleeve 16 abuts against the top of grip sleeve 2.

[0040] The threaded connector 12 provides a position for connecting the connector cap 37 and the connector cap 38. The bracket 13 provides support for the bottom end of the connecting rod 7, reducing deformation and misalignment. It is sleeved on the outside of the pressure vessel 1 through the sleeve 16 and abuts against the top of the sleeve 16, providing a bottom support point. This facilitates assembly and disassembly of the connector cap 5 and the pressure vessel 1, thereby facilitating the use of the structure and maintaining its relative stability.

[0041] In another implementation scheme, such as Figures 1-3 As shown, both connectors 18 have threaded sealing caps 19 on their outer sides, and the two connectors 18 are distributed on both sides of the spiral conveyor rod 24.

[0042] The purpose of connector 418 is to install a liquid flow container with a flow guide mechanism, and to facilitate opening and draining during cleaning, thereby increasing the cleaning outlet and making cleaning and maintenance easier.

[0043] In another implementation scheme, such as Figures 1-7As shown, the dimensions of the sealing cone 23 are compatible with those of the threaded connector 28. The spiral transmission rod 24 is movably sleeved inside the threaded connector 28. The cone head 2402 is located at the bottom of the solenoid valve 35. The bottom end of the spiral transmission rod 24 is rotatably mounted at the bottom of the inner cavity of the spray chamber 25 through the bearing seat. The tapered threaded plate 2401 is located at the bottom of the threaded connector 28. The cross 28 is fixedly installed inside the spray chamber 25. The turbine blades 29 are evenly distributed on the outside of the worm gear 27 in a circular pattern. The turbine blades 29 and the spray chamber 25 are concentric circles.

[0044] The sealing cone 23 seals and compresses the opposite sides of the threaded connector 8 and the powder container 9, and guides the powder through a cone shape for easy discharge. The spiral conveyor rod 24 adopts a threaded roller structure and is movably installed inside the threaded connector 8. The bottom end adopts a rotating support structure and is installed in the inner cavity of the spray chamber 25, which facilitates the rotation of the spiral conveyor rod 24 by the worm gear 27 driving the worm wheel 26, thereby driving the structure to run. It can also drive the structure to run by the turbine blades 29. The turbine blades 29 can capture the airflow power to drive the worm gear 27 to rotate, and then drive the spiral conveyor rod 24 to rotate through the reduction transmission structure of the worm gear 27 and the worm wheel 26, thereby applying a rotational spreading power to the powder. This, together with the conical threaded plate 2401, ensures that the powder and airflow are in uniform contact, making it easy for the airflow to carry the powder out, which is convenient for spraying.

[0045] In another implementation scheme, such as Figure 3 and Figure 7 As shown, an electrically controlled telescopic rod 32 is fixedly installed at the bottom of the inner cavity of the spray chamber 25, and a stop block 33 is fixedly installed at the top of the electrically controlled telescopic rod 32. The stop bars 34 are linearly distributed in a stepped manner of unequal length on the outside of the spiral conveyor rod 24.

[0046] The baffles 34 are evenly distributed in a circle on the outside of the spiral conveyor rod 24. From above, the baffles 34 appear to be circumferentially distributed on the outside of the spiral conveyor rod 24, but from the side, they appear as linear steps of unequal length. This arrangement facilitates the use of triangular blocks 33 for blocking operations. When the electrically controlled telescopic rod 32 extends the blocks 33, the blocks 33 block the baffles 34, thereby interrupting the rotation of the spiral conveyor rod 24. This allows the solenoid valve 35 to close and interrupt the output of the powder after the drug dosage is reached or in the later stages of the drug delivery operation. Finally, the airflow is output to help deliver the powder to deeper areas of the lungs, thereby reducing powder waste and improving the efficiency of the drug delivery spray.

[0047] In another implementation scheme, such as Figures 1-3As shown, a battery compartment 21 is fixedly installed at the bottom of the connecting rod 7, a display screen 11 is fixedly installed on one side of the connecting rod 7, a circuit control board is integrated at the bottom of the display screen 11, and several buttons 10 are provided on the outside of the connecting rod 7, which are linearly and evenly distributed on the outside of the display screen 11.

[0048] The switch of trigger valve 15 is linked to the switch of solenoid valve 35. Battery compartment 21 adopts existing battery structure and provides power to display screen 11 and its rear integrated circuit control board. The operation parameters are pressed by button 10 and the numerical parameters and recommended operation are displayed on display screen 11 to facilitate coordinated operation. The control end of integrated circuit board is connected to the input end of electric telescopic rod 32 and solenoid valve 35 through wires. The signal receiving end of integrated circuit board is electrically connected to the output end of button 10, flow sensor 22 and air pressure sensor 31 through wires.

[0049] 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 medical drug powder spraying device, comprising a pressure vessel (1), a breathing mask (36), and a rotary metering powder atomizing nozzle (39), characterized in that: A grip sleeve (2) is fixedly fitted to the outside of the pressure vessel (1). A threaded connector (4) is fixedly installed at the top of the pressure vessel (1). A connecting cap (5) is threadedly sealed at the top of the threaded connector (4). A connecting cap (6) is connected to the top of the connecting cap (5). A pressure sensor (31) is fixedly installed at the top of the inner cavity of the connecting cap (6). A connecting rod (7) is fixedly installed on one side of the connecting cap (6). A pressurizing cylinder is fixedly installed at the top of the inner cavity of the connecting cap (6). 17), a connecting pipe (20) is fixedly installed at the bottom of the connecting cap (6), a spray chamber (25) is opened inside the connecting rod (7), a beam cavity (30) is fixedly installed inside the spray chamber (25), a flow sensor (22) is provided in the middle of the beam cavity (30), a trigger valve (15) is installed in the middle of the beam cavity (30), a threaded connector three (12) is connected to the end of the spray chamber (25) away from the beam cavity (30), and two connector four (12) are connected to the bottom of the spray chamber (25). 18), the top of the spray chamber (25) is connected to a threaded connector two (8), the top of the threaded connector two (8) is threadedly sealed with a powder container (9), the bottom of the inner cavity of the powder container (9) is fixedly installed with a sealing cone (23), the inside of the threaded connector two (8) is equipped with a solenoid valve (35), the inside of the threaded connector two (8) is movably installed with a spiral conveying rod (24), the top of the spiral conveying rod (24) is fixedly installed with a cone head (2402), the spiral conveying rod (2402) is fixedly installed with a cone head (2402), the top of ... 4) A tapered threaded plate (2401) is fixedly sleeved on the outside of the spiral transmission rod (24). A worm wheel (26) is fixedly sleeved on the outside of the bottom end of the spiral transmission rod (24). A worm (27) meshes with the outside of the worm wheel (26). A cross (28) is rotatably sleeved on the outside of the other end of the worm (27). Several turbine blades (29) are fixedly installed on the outside of the end of the worm (27) away from the worm wheel (26). Several baffles (34) are fixedly installed on the outside of the bottom end of the spiral transmission rod (24). One end of the worm gear (26) is connected to the connecting cap (37), and the top end of the rotary quantitative powder atomizing nozzle (39) is connected to the connecting cap (38).

2. The medical drug powder spraying device according to claim 1, characterized in that: The operating lever of the pressurizing cylinder (17) moves through the pressurizing cylinder (17) and extends to the top of the connecting cap (6). The connecting pipe (20) is sleeved on the inside of the connecting cap (5) and on the outside of the pressurizing cylinder (17).

3. The medical drug powder spraying device according to claim 1, characterized in that: The bundle cavity (30) is a double-expanded flow guide cavity with a cylindrical hole in the middle of the two flared mouths. The pressure pot (1) and the powder pot (9) are both provided with scale lines (3) on the outside. One end of the bundle cavity (30) is connected to the inside of the connecting cap (6).

4. The medical drug powder spraying device according to claim 1, characterized in that: The trigger valve (15) is movably mounted on the connecting rod (7) and extends to the bottom of the connecting rod (7), and the flow sensor (22) is located on the opposite side of the connecting cap (6) and the trigger valve (15).

5. A medical drug powder spraying device according to claim 1, characterized in that: An adjusting mechanism (14) is provided on one side of the trigger valve (15). The adjusting mechanism (14) includes an adjusting rod (1401) and a baffle (1404). Both ends of the adjusting rod (1401) are provided with sealing grooves (1406). A knob head (1403) is fixedly installed on the outer side of both ends of the adjusting rod (1401). The adjusting rod (1401) is rotatably and sealed inside the connecting rod (7) through the sealing grooves (1406). A worm gear blade (1402) is fixedly installed on the outer side of the adjusting rod (1401). The inner side of the baffle (1404) is fixedly installed with... There is a connecting post (1408), and a rotating baffle (1405) is movably sleeved on the outer side of the connecting post (1408). A worm gear tooth (1407) is fixedly installed on the outer edge of the rotating baffle (1405). The outer side of the worm gear tooth (1407) meshes with the outer side of the worm blade (1402) for transmission connection. The specifications and dimensions of the baffle (1404) and the worm gear tooth (1407) are adapted to the specifications and dimensions of the bundle cavity (30). The baffle (1404) is fixedly installed inside the bundle cavity (30). The baffle (1404) and the rotating baffle (1405) are both evenly distributed circumferentially.

6. A medical drug powder spraying device according to claim 1, characterized in that: The threaded connector three (12) is fixedly installed on the outside of the connecting rod (7). The specifications and dimensions of the connecting cap two (37) and the connecting cap three (38) are adapted to the specifications and dimensions of the threaded connector three (12). A bracket (13) is fixedly installed at the bottom of the connecting rod (7) away from the connecting cap (6). A sleeve (16) is fixedly installed at the bottom of the bracket (13). The sleeve (16) is movably sleeved on the outside of the pressure pot (1). The bottom of the sleeve (16) abuts against the top of the grip sleeve (2).

7. A medical drug powder spraying device according to claim 1, characterized in that: Both of the four connectors (18) are threaded with sealing caps (19) on their outer sides, and the two connectors (18) are distributed on both sides of the spiral conveyor rod (24).

8. A medical drug powder spraying device according to claim 1, characterized in that: The specifications and dimensions of the sealing cone (23) are adapted to those of the threaded connector (8). The spiral transmission rod (24) is movably sleeved inside the threaded connector (8). The cone head (2402) is located at the bottom of the solenoid valve (35). The bottom end of the spiral transmission rod (24) is rotatably installed at the bottom of the inner cavity of the spray chamber (25) through the bearing seat. The tapered threaded plate (2401) is located at the bottom of the threaded connector (8). The cross (28) is fixedly installed inside the spray chamber (25). The turbine blades (29) are evenly distributed on the outside of the worm gear (27) in a circular pattern. The turbine blades (29) and the spray chamber (25) are concentric circles.

9. A medical drug powder spraying device according to claim 1, characterized in that: An electrically controlled telescopic rod (32) is fixedly installed at the bottom of the inner cavity of the spray chamber (25), and a stop block (33) is fixedly installed at the top of the electrically controlled telescopic rod (32). The stop bars (34) are linearly distributed in a staggered pattern of unequal lengths on the outside of the spiral conveyor rod (24).

10. A medical drug powder spraying device according to claim 1, characterized in that: A battery compartment (21) is fixedly installed at the bottom of the connecting rod (7), and a display screen (11) is fixedly installed on one side of the connecting rod (7). A circuit control board is integrated at the bottom of the display screen (11). Several buttons (10) are provided on the outside of the connecting rod (7), and the buttons (10) are linearly and evenly distributed on the outside of the display screen (11).

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