An intelligent medicine-taking auxiliary inhalation device

Abstract

The application discloses an auxiliary medicine inhalation device for intelligent medicine taking, which comprises a suction nozzle, a capsule puncture assembly and a flow rate adjusting assembly. The middle part of the suction nozzle, the capsule puncture assembly and the flow rate adjusting assembly is provided with an airflow channel for medicine delivery. The air outlet end of the airflow channel is the front end of the suction nozzle, the air inlet end of the airflow channel is the rear end of the flow rate adjusting assembly, and a gas flow rate sensor is arranged at the air inlet end. A power supply, a controller and a voice module are further arranged in the flow rate adjusting assembly. By clamping and rotating the medicine powder capsule, the flow rate adjusting assembly not only helps to shake out the medicine powder from the capsule, but also generates appropriate airflow to adjust the flow rate of the medicine powder. The intelligent adjustment ensures that the medicine powder is delivered into the patient's body at the best speed and quantity, improves the accuracy and safety of medicine taking, improves the medicine taking compliance, achieves the treatment effect, and through the pre-set medicine delivery program of the controller, the medicine delivery steps can be designed according to different situations of different patients.

Description

Technical Field

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

[0002] Since the mid-1950s, inhaled aerosol (IPA) devices have been used to treat asthma and chronic obstructive pulmonary disease. One problem with inhalers is the low efficiency of delivering the aerosol to the lungs. To improve drug deposition, a peak inhalation flow rate of 60 LPM is required. For some patients, this peak flow rate is insufficient, leading to lower drug deposition and affecting the therapeutic effect. When using metered-dose inhalers or dry powder inhalers, up to 50% of the nebulized medication fails to reach the lungs. Various methods have been tried to improve lung deposition, including instructing patients on how to operate the device. However, due to individual differences among users, proper operation and personal habits will affect the inhalation effect.

[0003] Therefore, this application provides an intelligent medication administration aid device, which aims to assist patients in using the inhaler correctly and to ensure the deposition rate of drugs in the patient's lungs. Summary of the Invention

[0004] This invention provides an intelligent medication administration auxiliary inhalation device, which aims to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A smart medication delivery auxiliary inhalation device includes: a suction nozzle, a capsule puncture assembly, and a flow rate regulating assembly. The suction nozzle and the flow rate regulating assembly are respectively disposed on both sides of the capsule puncture assembly. The suction nozzle, the capsule puncture assembly, and the flow rate regulating assembly have an airflow channel for drug delivery in the middle. The air outlet of the airflow channel is the front end of the suction nozzle, and the air inlet of the airflow channel is the rear end of the flow rate regulating assembly. A gas flow rate sensor is disposed at the air inlet.

[0007] The suction nozzle is used to deagglomerate the drug powder and reduce the inlet flow rate of the drug powder aerosol;

[0008] The capsule puncture assembly is used to puncture the powder capsules;

[0009] The flow rate regulating component is used to clamp and rotate the powder capsule, causing the powder in the capsule to be thrown out, and generating airflow to adjust the flow rate of the powder.

[0010] The flow rate regulating component is used to generate strong wind to self-clean the airflow channel used for drug delivery;

[0011] The flow rate regulating component also includes a power supply, a controller, and a voice module. The controller is electrically connected to the capsule puncture component, the flow rate regulating component, the power supply, the gas flow rate sensor, and the voice module, and controls the operation of the capsule puncture component, the flow rate regulating component, and the voice module according to the measurement values ​​of the gas flow rate sensor.

[0012] Furthermore, the airflow channel in the middle of the nozzle consists of a slow-flow chamber, a double-helix airway, and a guide chamber, arranged sequentially from front to back.

[0013] The guide cavity is conical in shape, which is used to guide the airflow of the medicine powder and prevent it from accumulating;

[0014] The double-helix air passage is used to deagglomerate the drug powder airflow and improve the uniformity of drug powder content in the drug powder airflow.

[0015] The cross-sectional area of ​​the slow-flow chamber is larger than that of the double-helix airway. It is used to slow down the flow of drug powder from the double-helix airway and prevent the drug powder from depositing in the oral cavity and pharynx.

[0016] Furthermore, the outer surface of the front end of the suction nozzle is provided with a fitting part, the cross-sectional shape of the fitting part is elliptical, and the cross-sectional area of ​​the fitting part gradually increases from the front end to the rear end of the suction nozzle; a first locking block is provided at the rear end of the guide cavity in the suction nozzle.

[0017] Furthermore, the capsule puncture assembly includes: a puncture shell, wherein a puncture chamber and a mating chamber are sequentially arranged from front to back in the middle of the puncture shell, and the puncture chamber and the mating chamber form an airflow channel in the capsule puncture assembly;

[0018] Two push-pull electromagnets are symmetrically arranged on the side wall of the puncture cavity. The protruding end of the push-pull electromagnet is fixedly connected to the puncture needle. The puncture housing is provided with a mounting cavity for installing the push-pull electromagnet. The push-pull electromagnet is electrically connected to the controller.

[0019] The front end of the puncture housing is provided with a first slot for engaging with the first locking block, and the rear end of the puncture housing is provided with an internal thread.

[0020] Furthermore, the flow rate regulating component includes: a motor housing, a DC motor disposed in the middle of the motor housing, an impeller disposed at one end of the DC motor near the capsule puncture component, and a gripper disposed at one end of the impeller near the capsule puncture component, the gripper being used to hold the powder capsule;

[0021] The motor housing has a motor mounting sleeve for mounting a DC motor in the middle. The motor mounting sleeve is engaged with the inner wall of the motor housing through an annular connecting plate. The annular connecting plate has several air holes. The rear end of the motor mounting sleeve has a motor cover. The DC motor is electrically connected to the controller.

[0022] The rear end of the motor housing is provided with a housing cover, and an air inlet is provided on the housing cover. The gas flow rate sensor is engaged with the air inlet.

[0023] Furthermore, the outer wall of the motor housing is provided with an external thread and a third locking block from front to back, and the external thread engages with the internal thread.

[0024] Furthermore, an arc-shaped sealing ring is provided at the front end of the puncture cavity, which is used to cooperate with the guide cavity;

[0025] A first sealing ring is provided on one side of the first card slot, and the first sealing ring is used to cooperate with the first card block;

[0026] A second sealing ring is provided at the front end of the mating cavity, and the second sealing ring is used to mate with the front end of the motor housing;

[0027] A third sealing ring is provided on one side of the external thread portion, and the third sealing ring is used to cooperate with the rear end of the puncture shell.

[0028] Furthermore, the rear end of the motor housing is provided with an integral rear cover, the inner wall of the integral rear cover is provided with a fourth sealing ring, and the rear side wall of the integral rear cover is provided with a filter screen.

[0029] The fourth sealing ring is used to cooperate with the third locking block, and the filter screen is used to filter the airflow entering the air inlet.

[0030] Furthermore, the gripper includes: a fixed plate, a rotating rod, and an arc-shaped clamping plate. The fixed plate is circular and is fixedly connected to the impeller coaxially. The fixed plate has several rectangular slots, which are evenly distributed around the axis of the fixed plate. Each rectangular slot is provided with a rotating rod. One end of the rotating rod is rotatably connected to the rectangular slot, and the other end is fixedly connected to the arc-shaped clamping plate.

[0031] A reset torsion spring is provided at the rotatable connection between the rotating rod and the rectangular groove, so that when the rotating rods are not under force, they approach each other, and when the rotating rods approach each other, the arc-shaped clamps abut against each other.

[0032] Furthermore, the inner wall of the arc-shaped clamp is provided with a self-locking thread, the direction of which is adapted to the rotation direction of the impeller, so that when the powder capsule rotates, it moves towards the fixed plate under the action of the self-locking thread; a semi-circular positioning groove is provided in the middle of the fixed plate.

[0033] Compared with the prior art, the present invention has the following technical effects:

[0034] 1. The intelligent medication auxiliary inhalation device of the present invention uses a nozzle design to help deagglomerate the drug powder, ensuring that the drug powder is inhaled in a finer state, and also reduces the flow rate of the drug powder aerosol at the inlet. This design reduces the deposition of drug powder in the mouth and throat during inhalation, ensuring that the drug powder can enter the patient's lungs, improving the efficiency of drug powder use, and also allowing the patient to inhale the drug powder more comfortably and smoothly.

[0035] 2. The intelligent medication auxiliary inhalation device of the present invention can quickly and accurately puncture the powder capsule through the capsule puncture component, ensuring that the powder inside the capsule can be released smoothly. Furthermore, the action of the capsule puncture component is controlled by the controller based on the reading of the gas flow rate sensor, which can effectively reduce ineffective inhalation caused by the patient forgetting to puncture the powder capsule. This design simplifies the medication steps for patients and improves the convenience and efficiency of medication administration.

[0036] 3. The intelligent medication auxiliary inhalation device of the present invention, through the flow rate regulating component, clamps and rotates the powder capsule, which not only helps to eject the powder from the capsule, but also generates an appropriate airflow to adjust the powder flow rate. This intelligent regulation function ensures that the powder is delivered to the patient's body at the optimal speed and amount, thereby improving the accuracy and safety of medication. Through the pre-set drug delivery program by the controller, the drug delivery steps can be designed according to the different conditions of different patients, improving the applicability of the inhalation device.

[0037] 4. The intelligent medication administration auxiliary inhalation device of this invention utilizes a gas flow rate sensor installed at the air inlet. This sensor can be an ultrasonic sensor, a hot wire flow sensor, or a Venturi flow sensor; these are standard devices. The device can monitor the gas flow rate entering the device in real time and feed this information back to the controller. Based on the received data, the controller precisely controls the capsule puncture assembly, the flow rate adjustment assembly, and the voice module, ensuring the stability and controllability of the entire medication administration process.

[0038] 5. The intelligent medication aid inhalation device of the present invention can provide voice prompts under the command of the controller through the voice module in the device, guiding the patient to perform the correct medication operation. This design not only enhances the convenience of medication, but also helps patients better understand and comply with the medication instructions, thereby improving medication adherence and effectiveness. Attached Figure Description

[0039] Figure 1 This is a cross-sectional view of the overall structure of an auxiliary drug inhalation device for intelligent drug administration according to the present invention;

[0040] Figure 2 This is a schematic diagram of the suction nozzle structure of an auxiliary drug suction device for intelligent drug administration according to the present invention;

[0041] Figure 3 This is a schematic diagram of the capsule puncture component of an auxiliary drug inhalation device for intelligent medication administration according to the present invention;

[0042] Figure 4 This is a schematic diagram of the flow rate adjustment component of an auxiliary drug absorption device for intelligent drug administration according to the present invention;

[0043] Figure 5 This is a schematic diagram of the gripper structure of an auxiliary drug suction device for intelligent drug administration according to the present invention;

[0044] Figure 6 This is another suction nozzle structure diagram of an intelligent medication auxiliary suction device according to the present invention.

[0045] In the picture:

[0046] 1. Suction nozzle; 101. Slow-flow chamber; 102. Double helical airway; 103. Guide chamber; 104. First locking block; 105. Fitting part; 106. Differential pressure sensor; 107. Air pressure detection channel;

[0047] 2. Capsule puncture assembly; 201. Puncture housing; 202. First slot; 203. Puncture chamber; 204. Push-pull electromagnet; 205. Puncture needle; 206. Mating cavity; 207. Internal thread; 208. Arc-shaped sealing ring; 209. First sealing ring; 210. Second sealing ring;

[0048] 3. Flow rate regulating component; 301. Motor housing; 302. DC motor; 303. Impeller; 304. Gripper; 305. Air vent; 306. Motor cover; 307. Third sealing ring; 308. Third locking block; 309. Rear cover of housing; 310. Air inlet; 311. External threaded part;

[0049] 3041, Fixing plate; 3042, Rotating rod; 3043, Arc-shaped clamping plate; 3044, Self-locking thread;

[0050] 4. Power supply; 5. Controller; 6. Gas flow rate sensor;

[0051] 7. Overall back cover; 701. Fourth sealing ring; 702. Filter screen; 8. Medicine powder capsule. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present application and with reference to the accompanying drawings.

[0053] like Figure 1 As shown, an intelligent medication delivery auxiliary inhalation device includes: a suction nozzle 1, a capsule puncture assembly 2, and a flow rate regulating assembly 3. The suction nozzle 1 and the flow rate regulating assembly 3 are respectively disposed on both sides of the capsule puncture assembly 2, and the suction nozzle 1, the capsule puncture assembly 2, and the flow rate regulating assembly 3 have an airflow channel for delivering medication in the middle. The air outlet of the airflow channel is the front end of the suction nozzle 1, and the air inlet of the airflow channel is the rear end of the flow rate regulating assembly 3. A gas flow rate sensor 6 is disposed at the air inlet.

[0054] The suction nozzle 1 is used to deagglomerate the powder and reduce the inlet flow rate of the powder aerosol.

[0055] The capsule puncture assembly 2 is used to puncture the powder capsule 8;

[0056] The flow rate regulating component 3 is used to clamp and rotate the powder capsule 8, so that the powder in the powder capsule 8 is thrown out, and an airflow is generated to adjust the flow rate of the powder.

[0057] The flow rate regulating component 3 is used to generate strong airflow to self-clean the airflow channel used for drug delivery; after the patient finishes taking the medication, the flow rate regulating component 3 can be activated separately to clean the residual powder inside.

[0058] The flow rate regulating component 3 is also equipped with a power supply 4, a controller 5 and a voice module. The controller 5 is electrically connected to the capsule puncture component 2, the flow rate regulating component 3, the power supply 4, the gas flow rate sensor 6 and the voice module respectively, and controls the operation of the capsule puncture component 2, the flow rate regulating component 3 and the voice module according to the measurement value of the gas flow rate sensor 6.

[0059] In one specific embodiment, the controller 5 is also equipped with a Bluetooth module, which enables the device to wirelessly connect with external portable devices such as mobile phones or computers, and to set parameters through the corresponding operating software on the mobile phone or computer; the various parts of the drug inhalation device are connected by snap-fit, which facilitates disassembly, cleaning and replacement of powder capsules;

[0060] In practical use, the following steps are included:

[0061] Step 1: The patient sets the parameters of the inhalation device according to their own inspiratory flow rate curve. The parameters of the inhalation device include: gas flow rate when the flow rate regulating component 3 is activated, target gas flow rate after the flow rate regulating component 3 is activated, activation time of the flow rate regulating component 3, patient's breath-holding time, and number of cycles of the flow rate regulating component 3.

[0062] Step 2: After the initial parameters are set, the patient opens the flow rate adjustment component 3, loads the powder capsule 8 into it, and then assembles the drug inhalation device.

[0063] Step 3: The patient starts the drug inhalation device through an external portable device. At this time, the controller 5 controls the capsule puncture assembly 2 to puncture the powder capsule 8, but the puncture needle 205 remains on the powder capsule 8 and is not removed.

[0064] Step 4: The patient places their mouth against the suction nozzle 1 and inhales according to the prompts from the voice module;

[0065] Step 5: When the gas flow rate sensor 6 reaches the gas flow rate when the flow rate regulating component 3 is activated, the controller 5 controls the capsule puncture component 2 to pull out the puncture needle 205 on the powder capsule 8, and controls the flow rate regulating component 3 to rotate the powder capsule 8 and adjust the gas flow rate. The controller 5 controls the flow rate regulating component 3 to reach the target gas flow rate and the duration is the activation time of the flow rate regulating component 3.

[0066] Step Six: After the powder inhalation process is completed, the voice module prompts the patient to hold their breath, and after the preset breath-holding time is reached, it prompts the patient to complete the breath-holding.

[0067] Step 7: If the patient needs to inhale multiple times, the controller 5 will prompt the patient to repeat steps 4 to 6 through the voice module. During multiple inhalations, the controller 5 will only control the capsule puncture assembly 2 to pull out the puncture needle 205 on the powder capsule 8 during the first inhalation. The puncture needle 205 will remain pulled out thereafter.

[0068] Step 8: After one dose of powder inhalation therapy is completed, the voice prompt module will remind the patient to finish the treatment and clean the inhalation device.

[0069] The controller 5 records the inhalation flow rate curve of the patient during the inhalation process while the patient is inhaling the powder, and transmits it to an external portable device via Bluetooth module or to an APP to view the inhalation flow rate and time in real time. It can also be uploaded to the cloud platform, which makes it convenient for doctors to analyze the patient's treatment effect and flexibly adjust the preset parameters of the inhalation device.

[0070] When the patient's own inhalation flow rate is sufficient, the patient can modify the corresponding parameters of the controller 5 to make the DC motor 302 not work. At this time, the puncture needle 205 in the capsule puncture assembly 2 of the controller 5 will puncture the powder capsule 8 and then immediately pull it out, so that the patient with sufficient inhalation flow rate can inhale the powder.

[0071] In one specific embodiment, the controller 5 of this application uses a PID algorithm to adjust the speed of the DC motor 302, ensuring that the flow rate detected by the gas flow rate sensor 6 matches the preset value. Precise and efficient motor speed control is a key aspect of this product. This invention uses a digital PID control-based algorithm to precisely adjust the DC motor speed by accurately modulating the pulse width modulation (PWM) signal. For dry powder inhalation products, flow rate control is particularly critical, with an optimal flow rate of 60 LPM. To achieve the best deposition rate, the advantage of the digital PID algorithm controller lies in its flexibility and adaptability. It can dynamically adjust the control parameters P (proportional), I (integral), and D (derivative) in a constantly changing working environment, thereby ensuring that the motor speed remains stable even in the face of external disturbances.

[0072] The specific calculation formula is as follows:

[0073]

[0074] Where u(t) represents the controller output signal, K p e(t) represents the proportional term, which directly adjusts the control quantity based on the current error. This represents the integral term, which is used to integrate the error. The larger the accumulated error, the larger the integral term, in order to eliminate static error. This represents the differential term, which is adjusted according to the rate of change of the error to predict the future trend of the error.

[0075] Execution control: The calculated control quantity u(t) is converted into the motor's output speed, and the output power is adjusted to control the flow rate. Gas flow rate sensor 6 monitors the flow rate in real time, converting the speed into a quantifiable pulse frequency to form a feedback loop, ensuring accurate tracking and control of the DC motor 302's speed. Precise motor speed control is achieved through PID fine-tuning.

[0076] The specific parameters in the formula can be obtained through multiple experiments, and the parameters will vary depending on the specifications of the device.

[0077] like Figure 2 As shown, the airflow channels in the middle of the nozzle 1 are, from front to back, a slow-flow chamber 101, a double-helix airway 102, and a guide chamber 103;

[0078] The guide cavity 103 is conical in shape and is used to guide the airflow of the powder and prevent it from accumulating.

[0079] The double helical air passage 102 is used to deagglomerate the drug powder airflow and improve the uniformity of drug powder content in the drug powder airflow.

[0080] The cross-sectional area of ​​the slow-flow cavity 101 is larger than that of the cross-sectional area of ​​the double-helix airway 102. It is used to slow down the flow of medicine powder from the double-helix airway 102 and prevent the medicine powder from depositing in the oral cavity and pharynx.

[0081] With the specially designed structure of the suction nozzle 2, when the powder airflow enters the double helical airway 102 from the guide cavity 103, the cross-sectional area gradually decreases and the gas flow rate increases, thus effectively enhancing the deagglomeration effect of the double helical airway 102 on the powder. When the powder airflow enters the slow flow cavity 101, the cross-sectional area increases and the gas flow rate slows down, which can prevent the powder airflow entering the oral cavity from being too fast and directly depositing in the oral cavity or pharynx, causing powder loss and affecting the treatment effect.

[0082] like Figure 2 As shown, the outer surface of the front end of the suction nozzle 1 is provided with a fitting portion 105. The cross-sectional shape of the fitting portion 105 is elliptical, and the cross-sectional area of ​​the fitting portion 105 gradually increases from the front end to the rear end of the suction nozzle 1. A first locking block 104 is provided at the rear end of the guide cavity 103 in the suction nozzle 1. The fitting portion 105 allows the suction nozzle 1 to flexibly adapt to the oral cavity size of different users and fit the contour of the mouth, preventing airflow from directly entering the oral cavity from the edge of the suction nozzle 1 during inhalation, so that the patient's inhalation airflow can be fully used to carry the medicine powder.

[0083] like Figure 6 As shown, in another embodiment of the suction nozzle 1, a pressure detection channel 107 is provided in the suction nozzle 1, and a differential pressure sensor 106 is provided at the rear end of the pressure detection channel 107. The differential pressure sensor 106 is electrically connected to the controller 5 and is used to detect whether the patient has started inhaling.

[0084] In this implementation, a high-precision, low-range differential pressure sensor is used, combined with a flow channel design to collect the pressure difference between the inlet pressure and the atmosphere, and the real-time suction velocity is calculated using Bernoulli's fluid dynamics equations. The pipe flow rate is calculated using the following formula:

[0085] Among them, Q load This represents the flow rate, K is a coefficient, and A is the cross-sectional area of ​​the pipe. It's a pressure difference. The K and A parameters, obtained from the sensor, can be tested and calculated using a standard laboratory flow meter.

[0086] like Figure 1 and Figure 3As shown, the capsule puncture assembly 2 includes: a puncture housing 201, wherein a puncture chamber 203 and a mating chamber 206 are sequentially arranged from front to back in the middle of the puncture housing 201, and the puncture chamber 203 and the mating chamber 206 form an airflow channel in the capsule puncture assembly 2;

[0087] Two push-pull electromagnets 204 are symmetrically arranged on the side wall of the puncture cavity 203. The protruding end of the push-pull electromagnet 204 is fixedly connected to the puncture needle 205. The puncture housing 201 is provided with a mounting cavity for mounting the push-pull electromagnet 204. The push-pull electromagnet 204 is electrically connected to the controller 5.

[0088] The front end of the puncture housing 201 is provided with a first slot 202, which is used to cooperate with the first card block 104, and the rear end of the puncture housing 201 is provided with an internal thread 207.

[0089] The push-pull electromagnet 204 is electrically connected to the controller 5. The controller 5 controls the push-pull electromagnet 204 to extend or retract according to a preset program, thereby puncturing the powder capsule 8 and facilitating the ejection of the powder. Preferably, in a specific embodiment, a position sensor is provided in the puncture cavity 203 to detect whether the puncture needle 205 is in place. When the sensing information of the position sensor does not match the action information of the controller 5, the controller 5 sends a fault prompt through the voice module.

[0090] like Figure 4 As shown, the flow rate regulating component 3 includes: a motor housing 301, a DC motor 302 is provided in the middle of the motor housing 301, an impeller 303 is provided at one end of the DC motor 302 near the capsule puncture component 2, and a gripper 304 is provided at one end of the impeller 303 near the capsule puncture component 2. The gripper 304 is used to hold the powder capsule 8.

[0091] The motor housing 301 is provided with a motor mounting sleeve for mounting a DC motor 302 in the middle. The motor mounting sleeve is engaged with the inner wall of the motor housing 301 through an annular connecting plate. The annular connecting plate is provided with a plurality of air holes 305. The rear end of the motor mounting sleeve is provided with a motor cover 306. The DC motor 302 is electrically connected to the controller 5.

[0092] The rear end of the motor housing 301 is provided with a housing rear cover 309, and an air inlet 310 is provided on the housing rear cover 309. The gas flow rate sensor 6 cooperates with the air inlet 310.

[0093] like Figure 1 and Figure 4As shown, the outer wall of the motor housing 301 is provided with an external threaded part 311 and a third locking block 308 from front to back. The external threaded part 311 cooperates with the internal threaded part 207 for detachable connection of the capsule puncture assembly 2 and the flow rate adjustment assembly 3, so as to facilitate the patient to change the powder capsule 8.

[0094] like Figure 1-4 As shown, an arc-shaped sealing ring 208 is provided at the front end of the puncture cavity 203, and the arc-shaped sealing ring 208 is used to cooperate with the guide cavity 103;

[0095] A first sealing ring 209 is provided on one side of the first card slot 202, and the first sealing ring 209 is used to cooperate with the first card block 104;

[0096] The front end of the mating cavity 206 is provided with a second sealing ring 210, which is used to mate with the front end of the motor housing 301.

[0097] A third sealing ring 307 is provided on one side of the external thread portion 311, and the third sealing ring 307 is used to cooperate with the rear end of the puncture housing 201.

[0098] By setting the aforementioned sealing ring, gas leakage at the connection points of various components of the drug delivery device can be effectively prevented, thus avoiding affecting the accuracy of the gas flow rate sensor 6 reading and the patient's treatment effect.

[0099] like Figure 4 As shown, an integral rear cover 7 is provided at the rear end of the motor housing 301, a fourth sealing ring 701 is provided on the inner wall of the integral rear cover 7, and a filter screen 702 is provided on the rear side wall of the integral rear cover 7.

[0100] The fourth sealing ring 701 is used to cooperate with the third locking block 308, and the filter screen 702 is used to filter the airflow entering the air inlet 310. The overall rear cover 7 and the filter screen 702 can perform preliminary filtration of external air, preventing external debris from contaminating the internal airflow channel of the drug suction device.

[0101] like Figure 5 As shown, the gripper 304 includes: a fixed plate 3041, a rotating rod 3042, and an arc-shaped clamping plate 3043. The fixed plate 3041 is circular and is fixedly connected to the impeller 303 on the same axis. The fixed plate 3041 has several rectangular slots, which are evenly distributed around the axis of the fixed plate 3041. Each rectangular slot is provided with a rotating rod 3042. One end of the rotating rod 3042 is rotatably connected to the rectangular slot, and the other end is fixedly connected to the arc-shaped clamping plate 3043.

[0102] A reset torsion spring is provided at the rotatable connection between the rotating rod 3042 and the rectangular groove, so that the rotating rods 3042 move closer to each other when no force is applied, and the arc-shaped clamps 3043 abut against each other when the rotating rods 3042 move closer to each other. The structure of the clamps 304 can effectively fix the powder capsule 8.

[0103] like Figure 5 As shown, the inner wall of the arc-shaped clamping plate 3043 is provided with a self-locking thread 3044. The direction of the self-locking thread 3044 is adapted to the rotation direction of the impeller 303, so that when the powder capsule 8 rotates, it moves towards the fixing plate 3041 under the action of the self-locking thread 3044. A semi-circular positioning groove is opened in the middle of the fixing plate 3041. By setting the self-locking thread 3044 on the arc-shaped clamping plate 3043, the clamping jaws 303 can be made to firmly hold the powder capsule 8 when the impeller 303 rotates, preventing the powder capsule 8 from falling off the clamping jaws 303 when the impeller 303 rotates, which would affect the patient's treatment effect.

[0104] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A smart medication administration auxiliary inhalation device, characterized in that, include: The suction nozzle (1), capsule puncture assembly (2), and flow rate regulating assembly (3) are respectively arranged on both sides of the capsule puncture assembly (2). The suction nozzle (1), capsule puncture assembly (2), and flow rate regulating assembly (3) have an airflow channel for drug delivery in the middle. The air outlet of the airflow channel is the front end of the suction nozzle (1), and the air inlet of the airflow channel is the rear end of the flow rate regulating assembly (3). A gas flow rate sensor (6) is provided at the air inlet. The suction nozzle (1) is used to deagglomerate the powder and reduce the inlet flow rate of the powder aerosol. The capsule puncture assembly (2) is used to puncture the powder capsule (8); The flow rate regulating component (3) is used to clamp and rotate the powder capsule (8), so that the powder in the powder capsule (8) is thrown out and an airflow is generated to adjust the flow rate of the powder. The flow rate regulating component (3) is used to generate strong wind to self-clean the airflow channel used for drug delivery; The flow rate regulating component (3) is also equipped with a power supply (4), a controller (5) and a voice module. The controller (5) is electrically connected to the capsule puncture component (2), the flow rate regulating component (3), the power supply (4), the gas flow rate sensor (6) and the voice module respectively, and controls the capsule puncture component (2), the flow rate regulating component (3) and the voice module according to the measurement value of the gas flow rate sensor (6).

2. The intelligent medication administration auxiliary inhalation device according to claim 1, characterized in that, The airflow channel in the middle of the nozzle (1) consists of a slow-flow chamber (101), a double-helix airway (102), and a guide chamber (103) from front to back; The guide cavity (103) is conical in shape and is used to guide the airflow of the powder and prevent it from accumulating. The double helical air passage (102) is used to depolymerize the powder gas flow and improve the uniformity of the powder content in the powder gas flow. The cross-sectional area of ​​the slow-flow chamber (101) is larger than that of the double-helix airway (102), which is used to slow down the flow of drug powder from the double-helix airway (102) and prevent the drug powder from depositing in the oral cavity and pharynx.

3. The intelligent medication administration auxiliary inhalation device according to claim 2, characterized in that, The front end outer surface of the suction nozzle (1) is provided with a fitting part (105), the cross-sectional shape of the fitting part (105) is elliptical, and the cross-sectional area of ​​the fitting part (105) gradually increases from the front end to the rear end of the suction nozzle (1); a first locking block (104) is provided at the rear end of the guide cavity (103) in the suction nozzle (1).

4. The intelligent medication administration auxiliary inhalation device according to claim 3, characterized in that, The capsule puncture assembly (2) includes: a puncture housing (201), wherein a puncture chamber (203) and a mating chamber (206) are sequentially arranged from front to back in the middle of the puncture housing (201), and the puncture chamber (203) and the mating chamber (206) form an airflow channel in the capsule puncture assembly (2); Two push-pull electromagnets (204) are symmetrically arranged on the side wall of the puncture cavity (203). The protruding end of the push-pull electromagnet (204) is fixedly connected to the puncture needle (205). The puncture housing (201) is provided with an installation cavity for installing the push-pull electromagnet (204). The push-pull electromagnet (204) is electrically connected to the controller (5). The front end of the puncture housing (201) is provided with a first slot (202), which is used to cooperate with the first card block (104), and the rear end of the puncture housing (201) is provided with an internal thread (207).

5. The intelligent medication administration auxiliary inhalation device according to claim 4, characterized in that, The flow rate regulating component (3) includes: a motor housing (301), a DC motor (302) is provided in the middle of the motor housing (301), an impeller (303) is provided at one end of the DC motor (302) near the capsule puncture component (2), and a gripper (304) is provided at one end of the impeller (303) near the capsule puncture component (2), the gripper (304) being used to hold the powder capsule (8); The motor housing (301) is provided with a motor mounting sleeve for mounting a DC motor (302) in the middle. The motor mounting sleeve is engaged with the inner wall of the motor housing (301) through an annular connecting plate. The annular connecting plate is provided with a plurality of air holes (305). The rear end of the motor mounting sleeve is provided with a motor cover (306). The DC motor (302) is electrically connected to the controller (5). The rear end of the motor housing (301) is provided with a housing rear cover (309), and an air inlet (310) is provided on the housing rear cover (309). The gas flow rate sensor (6) cooperates with the air inlet (310).

6. The intelligent medication administration auxiliary inhalation device according to claim 5, characterized in that, The outer wall of the motor housing (301) is provided with an external threaded part (311) and a third locking block (308) from front to back, and the external threaded part (311) cooperates with the internal threaded part (207).

7. The intelligent medication administration auxiliary inhalation device according to claim 6, characterized in that, The front end of the puncture cavity (203) is provided with an arc-shaped sealing ring (208), which is used to cooperate with the guide cavity (103); A first sealing ring (209) is provided on one side of the first card slot (202), and the first sealing ring (209) is used to cooperate with the first card block (104); The front end of the mating cavity (206) is provided with a second sealing ring (210), which is used to mate with the front end of the motor housing (301); A third sealing ring (307) is provided on one side of the external thread portion (311), and the third sealing ring (307) is used to cooperate with the rear end of the puncture housing (201).

8. The intelligent medication administration auxiliary inhalation device according to claim 7, characterized in that, The rear end of the motor housing (301) is provided with an integral rear cover (7), the inner wall of the integral rear cover (7) is provided with a fourth sealing ring (701), and the rear side wall of the integral rear cover (7) is provided with a filter screen (702). The fourth sealing ring (701) is used to cooperate with the third locking block (308), and the filter screen (702) is used to filter the airflow entering the air inlet (310).

9. The intelligent medication administration auxiliary inhalation device according to claim 8, characterized in that, The gripper (304) includes: a fixed plate (3041), a rotating rod (3042), and an arc-shaped clamping plate (3043). The fixed plate (3041) is circular and is fixedly connected to the impeller (303) on the same axis. The fixed plate (3041) has several rectangular slots, which are evenly distributed around the axis of the fixed plate (3041). Each rectangular slot is provided with a rotating rod (3042). One end of the rotating rod (3042) is rotatably connected to the rectangular slot, and the other end is fixedly connected to the arc-shaped clamping plate (3043). A reset torsion spring is provided at the rotatable connection between the rotating rod (3042) and the rectangular groove, so that the rotating rods (3042) approach each other when they are not under force, and the arc-shaped clamps (3043) abut against each other when the rotating rods (3042) approach each other.

10. The intelligent medication administration auxiliary inhalation device according to claim 9, characterized in that, The inner wall of the arc-shaped clamp (3043) is provided with a self-locking thread (3044), the direction of which is adapted to the rotation direction of the impeller (303), so that when the powder capsule (8) rotates, it moves towards the fixed plate (3041) under the action of the self-locking thread (3044); a semi-circular positioning groove is provided in the middle of the fixed plate (3041).

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