A plug valve aerosol trigger

Abstract

The utility model discloses a kind of plug-in mouth type aerosol trigger devices, comprising: support;Gas aerosol medical device clamping mechanism is set on support and carries out the clamping of gas aerosol medical device;Suction nozzle can be sleeved on the medicine spraying nozzle of gas aerosol medical device for suctioner oral suction, suction nozzle is equipped with airflow communication pipeline for being connected with differential pressure detection module;Differential pressure detection module is set on support and can be communicated with airflow communication pipeline to obtain airflow negative pressure value at suction nozzle;Controller module is set on support for calculating lung airflow flow according to the airflow negative pressure value at suction nozzle obtained by differential pressure detection module;Gas aerosol medical device pressing mechanism is set on support for being pressed to realize gas aerosol medical device administration by controller module control to gas aerosol medical device bottle body when lung airflow flow reaches set value.The utility model discloses plug-in mouth type aerosol trigger device, with high administration precision, simple structure, easy operation, smaller volume and the like advantages.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a nozzle-type aerosol triggering device. Background Technology

[0002] The characteristic of aerosol drug delivery is that pressing the aerosol device instantly sprays the medication using the pressure of the propellant. Its defining feature is the extremely short spray time, typically only 0.2 seconds. This mechanism of delivery means that the timing of the inhalation is crucial. Poor timing will result in ineffective delivery. If the inhaler inhales too late, pressing the device before the airway is fully open, the medication will hit the teeth, throat, or oral cavity walls instead of reaching the lungs, leading to delivery failure. If the inhaler opens the airway too early, pressing the device near the end of inhalation, the airflow is insufficient to carry the medication to the target location in the lungs, also resulting in delivery failure. Furthermore, these issues make evaluating clinical trial results difficult. This difficulty is also prevalent in patient administration, especially in elderly or pediatric patients, where inhalation difficulties or lack of coordination can also lead to delivery failure. This is both insidious and difficult to assess.

[0003] Existing aerosol triggering devices generally use a probe structure to collect the negative pressure value of the airflow at the spray nozzle, and then obtain the inflow rate to the lungs based on the negative pressure value to achieve precise spraying. However, existing aerosol triggering devices require the probe to be inserted into the narrow gap between the aerosol device bottle and the aerosol device shell, which not only makes the adjustment process complicated, but also easily leads to problems such as probe position displacement causing probe damage. Utility Model Content

[0004] This invention addresses the aforementioned technical problems by proposing a plug-in type aerosol triggering device.

[0005] The technical means adopted in this utility model are as follows:

[0006] A plug-in type aerosol triggering device includes:

[0007] support;

[0008] An aerosol device clamping mechanism is provided on the bracket for clamping the aerosol device;

[0009] A mouthpiece that can be fitted onto the nozzle of an aerosol medication device for oral inhalation by a user, the mouthpiece being provided with an airflow communication pipe for connection to a differential pressure detection module;

[0010] A differential pressure detection module that is mounted on the bracket and can be connected to the airflow communication pipeline to obtain the negative pressure value of the airflow at the nozzle;

[0011] The controller module mounted on the bracket is used to transmit the negative pressure value of the airflow at the nozzle obtained by the differential pressure detection module to the control center.

[0012] An aerosol delivery device pressing mechanism is installed on the bracket for pressing the aerosol delivery device vial when the inhaled airflow reaches a set value, controlled by the controller module.

[0013] Furthermore, one end of the mouthpiece is a nozzle connecting section for fitting onto the spray nozzle of an aerosol device, and the other end is a mouthpiece for the user to hold in their mouth. The inner diameter of the nozzle connecting section is smaller than the inner diameter of the mouthpiece, forming a transition edge between the nozzle connecting section and the mouthpiece. The sensing port of the airflow communication pipe is located on the transition edge. Alternatively, one end of the mouthpiece is a nozzle connecting section for fitting onto the spray nozzle of an aerosol device, and the other end is a mouthpiece for the user to hold in their mouth. One end of the airflow communication pipe extends into the mouthpiece, and the sensing port of the airflow communication pipe is located on the side away from the spray nozzle.

[0014] Furthermore, the outlet of the airflow communication pipe is provided with a connecting pipe, and the other end of the connecting pipe can be connected to the differential pressure detection module.

[0015] Furthermore, the differential pressure detection module is a differential pressure sensor, the bracket is provided with a differential pressure sensor mounting cavity, the differential pressure sensor is installed in the differential pressure sensor mounting cavity, the bracket is also provided with a connecting pipe interface for connecting with the connecting pipe and an airflow passage connecting the connecting pipe interface and the differential pressure sensor mounting cavity.

[0016] Furthermore, the bracket is provided with a metal tube that connects the connecting pipe interface and the differential pressure sensor mounting cavity. The metal tube forms the airflow passage. One end of the metal tube located in the differential pressure sensor mounting cavity is connected to the differential pressure sensor through a latex tube. The end of the metal tube located in the connecting pipe interface can be connected to the connecting pipe.

[0017] Furthermore, the bracket is provided with an aerosol device receiving part, the aerosol device receiving part is provided with an aerosol device receiving groove, and also includes an aerosol device pressing block, the aerosol device pressing block being fastened to the aerosol device receiving part by a locking structure.

[0018] Furthermore, the aerosol dispensing device pressing mechanism includes a linear motor, a pressure sensor, and a push pin;

[0019] The linear motor is fixed on the bracket and located on the upper side of the aerosol medicine receiving tank. The output shaft of the linear motor is connected to a pin, and the pressure sensor is provided between the output shaft of the linear motor and the pin.

[0020] Furthermore, the bracket is also provided with a magnetic positioning switch on the upper side of the linear motor for detecting the initial position of the output shaft of the linear motor.

[0021] Furthermore, it also includes a voice prompt module mounted on the bracket and connected to the controller module for issuing drug administration prompts.

[0022] Furthermore, the bracket includes a base and a vertical mounting plate fixed on the base. One side of the vertical mounting plate has a first protrusion, a second protrusion, and a third protrusion that protrude horizontally from top to bottom. The magnetic positioning switch is installed on the first protrusion, the linear motor is fixed on the second protrusion, and the ejector pin passes through the third protrusion. The aerosol receiving slot is provided on the base below the third protrusion. The controller module and the voice prompt module are installed on the other side of the vertical mounting plate.

[0023] Compared with the prior art, the insert-type aerosol triggering device of this utility model has the following beneficial effects: The insert-type aerosol triggering device disclosed in this utility model, by setting a suction nozzle and setting an airflow passage on the suction nozzle, can fit onto the spray nozzle of the aerosol device, and the airflow passage on the suction nozzle can be connected to the differential pressure detection module, thereby quickly and conveniently realizing the detection of airflow into the lungs, thereby improving the accuracy of drug delivery, and has the advantages of simple structure, convenient operation, and smaller size. Attached Figure Description

[0024] Figure 1 This is an axial view of the plug-in type aerosol triggering device disclosed in this utility model, excluding the housing;

[0025] Figure 2 This is a front view of the plug-in aerosol triggering device disclosed in this utility model;

[0026] Figure 3 This is a side view of the plug-in type aerosol triggering device disclosed in this utility model;

[0027] Figure 4 This is a side view of the plug-in aerosol triggering device disclosed in this utility model, with a partial cross-sectional view of the lower part of the bracket;

[0028] Figure 5 This is a rear view of the plug-in type aerosol triggering device disclosed in this utility model;

[0029] Figure 6 This is a front view of the first embodiment of the nozzle of the plug-type aerosol triggering device disclosed in this utility model;

[0030] Figure 7 This is a side view of the first embodiment of the nozzle of the plug-in aerosol triggering device disclosed in this utility model;

[0031] Figure 8 This is a cross-sectional view of the nozzle of the plug-in aerosol triggering device disclosed in this utility model;

[0032] Figure 9 This is an axial view of the plug-in type aerosol triggering device disclosed in this utility model, including the housing.

[0033] In the diagram: 1. Bracket; 10. Differential pressure sensor mounting cavity; 11. Connecting pipe interface; 12. Airflow passage; 13. Metal pipe; 14. Aerosol device receiving part; 140. Aerosol device receiving slot; 15. Base; 16. Vertical mounting plate; 160. First protrusion; 161. Second protrusion; 162. Third protrusion; 17. Housing; 2. Aerosol device clamping mechanism; 20. Aerosol device pressing block; 21. Fastener; 3. Nozzle 30. Airflow connecting pipe; 31. Spray nozzle connection section; 32. Mouthpiece section; 33. Transition edge; 34. Sensing port of airflow connecting pipe; 35. Connecting pipe; 4. Differential pressure detection module; 5. Controller module; 6. Aerosol device pressing mechanism; 60. Linear motor; 61. Pressure sensor; 62. Ejector pin; 63. Magnetic positioning switch; 7. Aerosol device; 70. Spray nozzle; 71. Aerosol device bottle; 8. Voice prompt module. Detailed Implementation

[0034] like Figure 1 , Figure 2 and Figure 3 The image shows a nozzle-type aerosol triggering device disclosed in this utility model, comprising:

[0035] Bracket 1;

[0036] An aerosol device clamping mechanism 2 is provided on the bracket 1 for clamping the aerosol device 7;

[0037] A mouthpiece 3 that can be fitted onto the spray nozzle 70 of the aerosol medicine device 7 for the user to inhale the medicine through their mouth, the mouthpiece 3 being provided with an airflow communication pipe 30 for connecting to the differential pressure detection module 4.

[0038] The differential pressure detection module 4 is installed on the bracket 1 and can be connected to the airflow communication pipe 30 to obtain the negative pressure value of the airflow at the nozzle 3;

[0039] The controller module 5, which is mounted on the bracket 1, is used to transmit the negative pressure value of the airflow at the nozzle 3 obtained by the differential pressure detection module 4 to the control center.

[0040] An aerosol delivery device pressing mechanism 6 is installed on the bracket 1 to press the aerosol delivery device bottle 71 under the control of the controller module 5 when the inhalation airflow reaches a set value, so as to realize the aerosol delivery device administration.

[0041] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the specific structure of the aerosol drug delivery device disclosed in this application includes an aerosol drug delivery device bottle and an aerosol drug delivery device shell. One end of the aerosol drug delivery device shell is provided with a drug delivery nozzle (spray nozzle). The cross-section of the aerosol drug delivery device shell is formed by three arc segments connected end to end (approximately a Reichstag triangle). Inside the aerosol drug delivery device shell, there is also a cavity structure with a cross-section formed by three arc segments connected end to end. The aerosol drug delivery device bottle is a cylindrical structure that can be inserted into the cavity inside the aerosol drug delivery device shell, so that the included angle between two adjacent arc segments in the cavity and the outer wall of the aerosol bottle form an air intake channel. One end of the aerosol drug delivery device bottle is provided with a pressing structure. Pressing the pressing structure can form the liquid drug inside the aerosol drug delivery device bottle into an aerosol and spray it out. This invention features a suction nozzle 3 that fits over the spray nozzle of an aerosol device. The nozzle 3 has an airflow communication pipe 30 for connection to a differential pressure detection module 4. A differential pressure detection module 4, connected to the airflow communication pipe 30 of the nozzle 3, is mounted on a support 1 to obtain the negative pressure value of the airflow at the nozzle 3. When the inhaled airflow reaches a set value, the controller module controls the aerosol device's pressing mechanism to press the aerosol device bottle to administer the medication, ensuring accurate drug delivery. Furthermore, this invention only requires the nozzle to be fitted over the spray nozzle of the aerosol device and the airflow communication pipe of the nozzle to be connected to the differential pressure detection module before administration, offering advantages such as ease of operation, simplicity, and smaller size.

[0042] Furthermore, one end of the mouthpiece 3 is a nozzle connecting section 31 for fitting onto the nozzle 70 of the aerosol device 7, and the other end is a mouthpiece 32 for the user to hold in their mouth. The inner diameter of the nozzle connecting section 31 is smaller than the inner diameter of the mouthpiece 32, forming a transition edge 33 between the nozzle connecting section 31 and the mouthpiece 32. The sensing port 34 of the airflow communication pipe is located on the transition edge 33. Alternatively, one end of the mouthpiece 3 is a nozzle connecting section 31 for fitting onto the nozzle 70 of the aerosol device 7, and the other end is a mouthpiece 32 for the user to hold in their mouth. One end of the airflow communication pipe 30 extends into the mouthpiece 3, and the sensing port 34 of the airflow communication pipe is located on the side away from the nozzle 70.

[0043] Specifically, in this embodiment, such as Figure 4 , Figure 6 and Figure 7 As shown, one end of the nozzle 3 is a nozzle connecting section 31 for fitting onto the spray nozzle 70 of the aerosol device 7. When the nozzle connecting section 31 is fitted onto the spray nozzle 70 of the aerosol device 7, the nozzle connecting section 31 and the spray nozzle 70 are sealed. The other end of the nozzle 3 is a mouthpiece section 32 for the user to hold the medication in their mouth. The inner diameter of the nozzle connecting section 31 is smaller than the inner diameter of the mouthpiece section 32, forming a transition edge 33 between the nozzle connecting section 31 and the mouthpiece section 32. The nozzle 3 has a gas communication passage 30 that connects the inner cavity and the outer side of the nozzle 3. The sensing port 34 of the gas communication passage is located on the transition edge 33. This not only allows the differential pressure value inside the nozzle 3 to be effectively obtained by the differential pressure detection module 4, but also effectively prevents the aerosol from flowing back into the gas communication passage 30, thus ensuring the accuracy of the differential pressure value. Figure 8 As shown, the mouthpiece 3 can also be a mouthpiece connecting section 31 with one end for attaching to the spray nozzle 70 of the aerosol device 7, and a mouthpiece section 32 for the user to hold in their mouth. One end of the airflow connecting pipe 30 extends into the mouthpiece 3, and the sensing port 34 of the airflow connecting pipe is located on the side away from the spray nozzle 70. This structure can also effectively obtain the pressure difference value inside the mouthpiece 3 through the pressure difference detection module 4. At the same time, it can effectively prevent the aerosol from flowing back into the airflow connecting pipe 30, thereby ensuring the accuracy of the pressure difference value.

[0044] Furthermore, the outlet of the airflow communication pipe is provided with a connecting pipe 35, and the other end of the connecting pipe 35 can be connected to the differential pressure detection module 4.

[0045] Specifically, in this embodiment, such as Figure 4 , Figure 6 and Figure 7 As shown, the air outlet of the airflow communication pipe is provided with a connecting pipe 35. The outer side of the air outlet end of the airflow communication pipe on the nozzle 3 is provided with an outwardly protruding plug structure to facilitate the connection of the connecting pipe 35 to the plug structure, thus enabling communication between the airflow communication pipe and the connecting pipe. Preferably, the connecting pipe 35 is a soft rubber tube, which allows for easy connection or disconnection with the differential pressure detection module, thereby enabling communication between the nozzle and the differential pressure detection module. In this embodiment, the outer diameter of the end of the connecting pipe 35 used to connect to the differential pressure detection module is larger than the outer diameter of the other end, making it easier for the operator to connect or disconnect the interface between the connecting pipe and the differential pressure detection module.

[0046] Furthermore, the differential pressure detection module 4 is a differential pressure sensor, and the bracket 1 is provided with a differential pressure sensor mounting cavity 10. The differential pressure sensor is installed in the differential pressure sensor mounting cavity 10. The bracket 1 is also provided with a connecting pipe interface 11 for connecting with the connecting pipe 35 and an airflow passage 12 connecting the connecting pipe interface 11 and the differential pressure sensor mounting cavity 10.

[0047] Specifically, in this embodiment, such as Figure 4 As shown, the differential pressure detection module 4 is a differential pressure sensor. The bracket 1 has a differential pressure sensor mounting cavity 10, and the differential pressure sensor is installed in the differential pressure sensor mounting cavity 10. The front end of the bracket 1 is provided with a connecting pipe interface 11 near the spray nozzle of the aerosol device. The connecting pipe interface 11 is used to connect with the end of the connecting pipe 35 of the mouthpiece 3. The bracket 1 is also provided with an airflow passage 12, which connects the connecting pipe interface 11 and the differential pressure sensor mounting cavity 10, so that the differential pressure sensor placed in the differential pressure sensor mounting cavity 10 can obtain the airflow negative pressure value in the mouthpiece 3 through the airflow passage 12 and the connecting pipe 35, and thus obtain the inflow airflow rate to the lungs based on the airflow negative pressure value.

[0048] Furthermore, the bracket 1 is provided with a metal tube 13 that connects the connecting pipe interface 11 and the differential pressure sensor mounting cavity 10. The metal tube 13 forms the airflow passage 12. One end of the metal tube 13 located in the differential pressure sensor mounting cavity 10 is connected to the differential pressure sensor through a latex tube. The end of the metal tube 13 located in the connecting pipe interface 11 can be connected to the connecting pipe 35.

[0049] Specifically, such as Figure 4 As shown, in this embodiment, the bracket 1 is provided with a metal tube 13 connecting the connecting pipe interface 11 and the differential pressure sensor mounting cavity 10. The metal tube 13 forms an airflow passage 12. One end of the metal tube 13 located in the differential pressure sensor mounting cavity 10 is connected to the differential pressure sensor via a latex tube. By setting the metal tube 13, the airflow channel 12 is formed, which not only reduces the processing difficulty, but also, the smooth inner wall of the metal tube can reduce the impact on the airflow, thereby ensuring the accuracy of the detected air pressure and thus ensuring the stability of the amount of aerosol drug sprayed. Preferably, the metal tube 13 is made of capillary copper tube, which is not only easy to bend and install in the bracket due to its good toughness and high ductility, but also has good corrosion resistance. The metal tube 13 extends slightly into the connecting pipe interface 11 on one side so that the end of the metal tube can be inserted into the connecting pipe 35.

[0050] Furthermore, the bracket 1 is provided with an aerosol device receiving part 14, the aerosol device receiving part 14 is provided with an aerosol device receiving groove 140, and also includes an aerosol device pressing block 20, the aerosol device pressing block 20 being fastened to the aerosol device receiving part 14 by a locking structure.

[0051] Specifically, in this embodiment, such as Figure 4 As shown, the lower front end of the bracket 1 is an aerosol device receiving part 14. The aerosol device receiving part 14 is provided with an aerosol device receiving groove 140. The aerosol device 7 can be vertically inserted into the aerosol device receiving groove 140 and fixed in the aerosol device receiving groove 140 by an aerosol device pressing block 20. The aerosol device pressing block 20 is detachably connected to the aerosol device receiving part through a locking structure or other means, thereby facilitating the replacement of the aerosol device. In this embodiment, the locking structure uses a snap fastener 21. In a specific embodiment, the aerosol device pressing block 20 and the aerosol device receiving part can be connected by a hinge on one side and fastened and locked by a snap fastener or other locking structure on the other side, or both sides can have snap fasteners or other locking structures.

[0052] Furthermore, the aerosol medication pressing mechanism 6 includes a linear motor 60, a pressure sensor 61, and a push pin 62;

[0053] The linear motor 60 is fixed on the bracket 1 and located on the upper side of the aerosol medicine receiving tank 140. The output shaft end of the linear motor 60 is connected to the ejector pin 62, and the pressure sensor 61 is provided between the output shaft of the linear motor 60 and the ejector pin 62.

[0054] Specifically, in this embodiment, such as Figure 1 and Figure 2 As shown, the aerosol spray device pressing mechanism includes a linear motor 60, a pressure sensor 61, and a nozzle 62. The linear motor 60 is fixed on the bracket 1 and located on the upper side of the aerosol spray device receiving slot 140. The output shaft of the linear motor 60 is connected to the nozzle 62. The output shaft of the linear motor 60 can drive the nozzle 62 to rise and fall, thereby pressing or releasing the bottom of the aerosol spray device bottle. A pressure sensor 61 is set between the output shaft of the linear motor 60 and the nozzle 62. The pressure sensor 61 can detect the pressure value between the output shaft and the nozzle, so that the controller module can more accurately control the movement of the linear motor and the nozzle, thereby ensuring the accuracy of spraying and the speed of response.

[0055] Furthermore, a magnetic positioning switch 63 for detecting the initial position of the output shaft of the linear motor 60 is also provided on the bracket 1 above the linear motor 60.

[0056] Specifically, in this embodiment, a magnetic positioning switch 63 is also provided on the support 1 above the linear motor 60. The position of the magnetic positioning switch 63 is opposite to the top of the output shaft of the linear motor 60, so that when the output shaft of the linear motor 60 moves up and down, the magnetic positioning switch 63 can detect the output shaft of the linear motor 60. Then, when the output shaft of the linear motor 60 is detected to have moved to the initial position, a signal is sent to the controller module so that the controller module can control the linear motor to stop moving. When the aerosol drug delivery device needs to be administered again, the controller module 5 controls the linear motor 60 to move downward a set distance according to the current position (the initial position of the linear motor output shaft), and then the output shaft of the linear motor 60 drives the pin 62 to press the bottom of the aerosol drug delivery device to achieve accurate drug delivery.

[0057] Furthermore, such as Figure 1 , Figure 3 and Figure 5 As shown, it also includes a voice prompt module 8, which is mounted on the bracket 1 and connected to the controller module 5 for issuing drug administration operation prompts. The voice prompt module facilitates voice guidance for the operator to perform related operations.

[0058] Furthermore, the bracket 1 includes a base 15 and a vertical mounting plate 16 fixed on the base 15. One side of the vertical mounting plate 16 is provided with a first protrusion 160, a second protrusion 161, and a third protrusion 162 protruding horizontally from top to bottom. The magnetic positioning switch 63 is installed on the first protrusion 160, the linear motor 60 is fixed on the second protrusion 161, the ejector pin 62 passes through the third protrusion 162, and the aerosol medicine receiving groove 140 is provided on the base 15 below the third protrusion 162. The controller module 5 and the voice prompt module 8 are installed on the other side of the vertical mounting plate 16.

[0059] Specifically, in this embodiment, such as Figure 1As shown, the bracket 1 includes a base 15 and a vertical mounting plate 16 mounted on the base. The base 15 and the vertical mounting plate 16 can be directly machined into an integral structure, or they can be separate structures assembled into an integral structure by screws or other means. The base 15 is preferably a square structure to facilitate standing on a table or laboratory bench. One side of the vertical mounting plate 16 has a first protrusion 160, a second protrusion 161, and a third protrusion 162 that protrude horizontally from top to bottom. The protrusions and the vertical mounting plate can be machined as a single piece, or they can be an integral structure assembled from multiple components. A magnetic positioning switch 63 is installed on the lower side of the first protrusion 160, and a linear motor 60 is fixed on the second mounting plate 161. Switch 63 corresponds to the upper end of the output shaft of linear motor 60. When the output shaft of linear motor 60 moves upward, the upper end of the output shaft can approach magnetic positioning switch 63. When the output shaft of linear motor 60 moves upward to a certain position (the initial position of the output shaft), magnetic positioning switch 63 sends a signal to controller module 5. Controller module 5 controls linear motor 60 to stop and records the current position. When aerosol medication needs to be administered, controller module 5 controls linear motor 60 to move downward a set distance according to the current position (the initial position of the linear motor output shaft). The output shaft of linear motor 60 then drives the ejector pin 62 to press the bottom of the aerosol medication bottle to achieve aerosol medication administration. The ejector pin 62 passes through the third protrusion 162, which guides the ejector pin 62 to ensure smooth operation and press the bottom of the aerosol medication bottle. The portion of the base 15 corresponding to the third protrusion 162 is an aerosol device receiving portion 14. The aerosol device receiving portion 14 has an aerosol device receiving groove 140, in which the aerosol device 7 can be vertically positioned. The aerosol device pressure block 20 can be fastened onto the aerosol device receiving portion 14 and locked in place by buckles on both sides. A controller module 5 and a voice prompt module 8 are installed on the other side of the vertical mounting plate 16. Figure 9As shown, a housing 17 is also provided on the outside of the bracket. The housing 17 is fastened to the bracket 1. When the housing 17 is installed on the bracket 1, the differential pressure detection module, the controller module, and the aerosol device pressing mechanism are covered inside the housing 17 for protection. The aerosol device clamping mechanism 2 is located outside the housing 17 to facilitate the replacement of the aerosol device 7 and the fitting of the mouthpiece 3 onto the spray nozzle 70 of the aerosol device 7, thereby facilitating the user's inhalation operation. In this embodiment, the differential pressure sensor mounting cavity is located in the base 15, and the front end of the base 15 is provided with a connecting pipe interface 11 located below the aerosol device receiving groove 140. This allows the connecting pipe interface 11 to correspond with the connecting pipe 35 on the mouthpiece 3 when the mouthpiece 3 is fitted onto the spray nozzle 70 of the aerosol device, facilitating the quick insertion of the connecting pipe 35 into the connecting pipe interface 11. The nozzle-type aerosol triggering device disclosed in this utility model can be used as a test instrument for use in clinical drug research, drug administration, training, and other related operations. It can also be used as a specific medical device for use when administering medication to patients or for training patients on spraying medication.

[0060] A method of using the nozzle-type aerosol triggering device described in this utility model includes the following steps:

[0061] Step 1: Clamp the aerosol device in the aerosol device clamping mechanism;

[0062] Specifically, gently shake the aerosol spray device up and down a few times before use. Then, open the dust cap on the nozzle of the aerosol spray device, with the can facing upwards and the nozzle downwards. Manually press the aerosol spray device to check if it sprays normally. If it sprays normally, place the aerosol spray device in the aerosol spray device holder and fasten the aerosol spray device clamp to the bracket. The locking mechanism (fastener) on both sides will then lock the aerosol spray device clamp to the bracket, thus holding the aerosol spray device in place. At this point, the nozzle of the aerosol spray device is on the lower side, and the bottom of the can is facing upwards.

[0063] Step 2: Attach the nozzle to the spray nozzle of the aerosol medicine device and connect the airflow connection pipe of the nozzle to the differential pressure detection module;

[0064] Specifically, the nozzle connecting section of the suction nozzle is fitted onto the nozzle of the aerosol spray device. Then, the free end of the connecting tube on the suction nozzle that communicates with the airflow passage is inserted into the connecting tube interface on the bracket, thus achieving the connection between the suction nozzle and the differential pressure detection module.

[0065] Step 3: Install an air pump and an air flow meter on the nozzle, and adjust the air pump to draw air from the nozzle at different flow rates. Obtain the correspondence between the different flow rates of the air pump and the negative pressure value of the airflow in the nozzle, and store the correspondence between the negative pressure value of the airflow and the airflow flow rate in the control center.

[0066] Specifically, after the nozzle is connected to the differential pressure detection module, an air pump and a gas flow meter are installed on the nozzle, preferably a high-precision gas flow meter. The flow rate of the air pump is set so that it draws air into the spray nozzle of the aerosol device. The differential pressure detection module obtains the negative pressure value of the airflow inside the nozzle and sends it to the control center through the communication module of the controller module. The control center obtains and stores the negative pressure value of the airflow. The operator inputs the corresponding gas flow rate value of the negative pressure value in the prompt window of the operation interface of the control center. This process completes the correspondence between a flow rate and a negative pressure value. Then, the flow rate of the air pump is adjusted to achieve different flow rates of air into the nozzle. The correspondence between different flow rates of the air pump (gas flow rate value) and the negative pressure value of the airflow inside the nozzle is obtained in sequence (the gas flow rate value of the air pump is input by the operator in the prompt window of the operation interface of the control center). Thus, a correspondence table of different flow rates of the air pump and the corresponding negative pressure values ​​of the airflow collected by the probe is obtained. That is, the above sampling process is repeated to establish multiple points and finally form a fitting curve and store it in the database of the control center (or cloud). The correspondence between the negative pressure value of the airflow and the airflow rate is stored in the control center. In this application, the control center can be a local server or a remote server, and the control center can run relevant programs to facilitate the corresponding settings, operation, and data analysis of the plug-in aerosol triggering device disclosed in this utility model.

[0067] Step 4: Remove the inhalation pump and gas flow meter. The control center obtains the corresponding negative pressure setting value of the airflow in the mouthpiece based on the input lung airflow set value. The user inhales by holding the mouthpiece in their mouth. The differential pressure detection module obtains the negative pressure value of the airflow in the mouthpiece and transmits it to the controller module.

[0068] Specifically, in step 3, the relationship between the airflow rate at the mouthpiece and the negative pressure value at the mouthpiece is obtained through the inhalation pump. In this step, the obtained relationship will be used to conduct an actual test on the inhaler. That is, the inhalation pump is removed, and the operator inputs the required inhalation airflow rate setting value in the operation interface of the control center, such as 20L / min (the setting value may be different for different tests). The control center obtains the corresponding negative pressure setting value based on the input inhalation airflow rate setting value and sends the negative pressure setting value to the controller module. The inhaler inhales through the mouthpiece, and the differential pressure detection module obtains the negative pressure value of the airflow in the mouthpiece in real time and transmits it to the controller module. The controller module compares the negative pressure value of the airflow corresponding to the inhalation airflow rate setting value with the negative pressure value of the airflow currently inhaled by the inhaler in real time to determine whether the current inhalation airflow rate of the inhaler has reached the set flow rate.

[0069] Step 5: When the negative pressure value of the airflow reaches the set negative pressure value, the controller module controls the aerosol device pressing mechanism to press the aerosol device bottle to realize the aerosol drug delivery.

[0070] Specifically, when the controller module detects that the negative pressure value of the airflow inside the nozzle obtained by the differential pressure detection module reaches the set negative pressure value, the controller module can quickly control the aerosol device pressing mechanism to press the aerosol device bottle to achieve aerosol drug delivery. This ensures that the drug is delivered at the appropriate time when the inhaler's airway is open, and that the inhaler has a prescribed inhalation time after drug delivery. This ensures the consistency of the inhalation flow rate triggering the switch, the coordination of the spraying after the airway is opened, and the consistency of the inhalation time.

[0071] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plug-in type aerosol triggering device, characterized in that, include: support; An aerosol device clamping mechanism is provided on the bracket for clamping the aerosol device; A mouthpiece that can be fitted onto the nozzle of an aerosol medication device for oral inhalation by a user, the mouthpiece being provided with an airflow communication pipe for connection to a differential pressure detection module; A differential pressure detection module that is mounted on the bracket and can be connected to the airflow communication pipeline to obtain the negative pressure value of the airflow at the nozzle; The controller module mounted on the bracket is used to transmit the negative pressure value of the airflow at the nozzle obtained by the differential pressure detection module to the control center. An aerosol delivery device pressing mechanism is installed on the bracket for pressing the aerosol delivery device vial when the inhaled airflow reaches a set value, controlled by the controller module.

2. The plug-in type aerosol triggering device according to claim 1, characterized in that: One end of the mouthpiece is a nozzle connector for attaching to the nozzle of an aerosol spray device, and the other end is a mouthpiece for the user to hold in their mouth. The inner diameter of the nozzle connector is smaller than the inner diameter of the mouthpiece, creating a transition edge between the nozzle connector and the mouthpiece. The sensor port of the airflow communication pipe is located on this transition edge. Alternatively, one end of the mouthpiece is a nozzle connector for attaching to the nozzle of an aerosol spray device, and the other end is a mouthpiece for the user to hold in their mouth. One end of the airflow communication pipe extends into the mouthpiece, and the sensor port of the airflow communication pipe is located on the side away from the nozzle.

3. The plug-in type aerosol triggering device according to claim 2, characterized in that: The outlet of the airflow communication pipeline is equipped with a connecting pipe, and the other end of the connecting pipe can be connected to the differential pressure detection module.

4. The plug-in type aerosol triggering device according to claim 2, characterized in that: The differential pressure detection module is a differential pressure sensor. The bracket is provided with a differential pressure sensor mounting cavity, and the differential pressure sensor is installed in the differential pressure sensor mounting cavity. The bracket is also provided with a connecting pipe interface for connecting to the connecting pipe and an airflow passage connecting the connecting pipe interface and the differential pressure sensor mounting cavity.

5. The plug-in type aerosol triggering device according to claim 3, characterized in that: The bracket is provided with a metal tube that connects the connecting pipe interface and the differential pressure sensor mounting cavity. The metal tube forms the airflow passage. One end of the metal tube located in the differential pressure sensor mounting cavity is connected to the differential pressure sensor through a latex tube. The end of the metal tube located in the connecting pipe interface can be connected to the connecting pipe.

6. The plug-in type aerosol triggering device according to claim 1, characterized in that: The bracket is provided with an aerosol device receiving part, the aerosol device receiving part is provided with an aerosol device receiving groove, and also includes an aerosol device pressing block, the aerosol device pressing block is fastened to the aerosol device receiving part by a locking structure.

7. The plug-in type aerosol triggering device according to claim 6, characterized in that: The aerosol dispensing device pressing mechanism includes a linear motor, a pressure sensor, and a push pin; The linear motor is fixed on the bracket and located on the upper side of the aerosol medicine receiving tank. The output shaft of the linear motor is connected to a pin, and the pressure sensor is provided between the output shaft of the linear motor and the pin.

8. The plug-in type aerosol triggering device according to claim 7, characterized in that: The bracket is also provided with a magnetic positioning switch on the upper side of the linear motor for detecting the initial position of the output shaft of the linear motor; The bracket is also equipped with a voice prompt module that is connected to the controller module to issue drug administration prompts.

9. The plug-in type aerosol triggering device according to claim 8, characterized in that: The bracket includes a base and a vertical mounting plate fixed on the base. One side of the vertical mounting plate has a first protrusion, a second protrusion, and a third protrusion that protrude horizontally from top to bottom. The magnetic positioning switch is installed on the first protrusion, the linear motor is fixed on the second protrusion, and the ejector pin passes through the third protrusion. The aerosol medicine receiving slot is provided on the base below the third protrusion. The controller module and the voice prompt module are installed on the other side of the vertical mounting plate.

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