Flow monitor of dry powder medicine instrument

Abstract

The invention discloses a flow monitor of a dry powder medicine instrument. The flow monitor comprises a main machine module and a clamp module detachably connected with the main machine module. The host module comprises a host module shell and a control mainboard, and the host module shell is provided with a first interface; the clamp module comprises a clamp module main body and an airflow sampling mainboard, and the clamp module main body is provided with a second interface; the first interface and the second interface can be connected through a data line, so that the control mainboard is electrically connected with the airflow sampling mainboard. According to the flow monitor for the dry powder type medical instruments, the host module can be suitable for the clamp modules of the dry powder type medical instruments with different characteristics, so that the universality of the host module is improved, meanwhile, the research and development cost of enterprises can be reduced, and when new dry powder type medical instruments appear on the market, only new clamp modules need to be researched and developed; therefore, the flow monitoring device can be quickly suitable for flow monitoring of new dry powder medical instruments.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a flow monitor for dry powder medical devices. Background Art

[0002] Dry powder medical devices are used to deliver drug powder (dry powder inhalation preparations) directly into the respiratory tract and lungs. They are mainly used for the treatment of respiratory diseases. They have the advantages of rapid onset of action, easy carrying and administration, small dosage, and few toxic and side effects.

[0003] However, the existing dry powder medical devices, including those that have been on the market and those that are about to be launched (dry powder medical devices that are undergoing clinical trial procedures), have various shapes, air inlets, and nozzles. If a dedicated flow monitor is designed for each type of dry powder medical device, it will inevitably lead to a long R&D cycle, thereby increasing R&D costs and reducing corporate benefits. Summary of the invention

[0004] In view of the above problems, the present invention proposes a flow monitor for dry powder medical devices.

[0005] The technical means adopted by the present invention are as follows:

[0006] A flow monitor for dry powder medical devices, comprising: a host module and a fixture module detachably connected to the host module;

[0007] The host module comprises a host module housing and a control mainboard arranged in the host module housing, and the host module housing is provided with a first interface;

[0008] The fixture module comprises a fixture module body and an airflow sampling mainboard arranged on the fixture module body, and the fixture module body is provided with a second interface;

[0009] The first interface and the second interface can be connected via a data line to achieve electrical connection between the control mainboard and the airflow sampling mainboard.

[0010] Furthermore, the host module shell is connected to the fixture module body by means of snaps or bolts.

[0011] Furthermore, a dry powder medical device accommodating cavity is provided on the clamp module body, an airflow sampling mainboard mounting portion is provided on the clamp module body at a position corresponding to the air inlet of the dry powder medical device, and the airflow sampling mainboard mounting portion is provided with the airflow sampling mainboard.

[0012] Furthermore, a dry powder medicine device locking device is provided on the side of the clamp module body opposite to the airflow sampling mainboard mounting portion. When the dry powder medicine device is placed in the dry powder medicine device accommodating cavity, the dry powder medicine device locking device can lock the dry powder medicine device in the dry powder medicine device accommodating cavity and make the air inspection port of the airflow sampling mainboard mounting portion fit with the air inlet of the dry powder medicine device.

[0013] Furthermore, the dry powder medicine locking device comprises a driving screw and a locking block;

[0014] A locking device mounting portion is provided on the side of the clamp module body opposite to the airflow sampling mainboard mounting portion, and a threaded structure is provided in the locking device mounting portion. The driving screw is connected to the threaded structure, and the driving screw is connected to the locking block at one end facing the dry powder drug device containing chamber. By rotating the driving screw, the locking block can be driven to move toward or away from the dry powder drug device containing chamber.

[0015] Furthermore, the fixture module body is provided with a locking device for buckling the dry powder medical device placed in the dry powder medical device accommodating chamber into the dry powder medical device accommodating chamber.

[0016] Further, the locking device comprises a locking block and a hasp lock;

[0017] The locking block is provided with a locking groove, and the locking block can be buckled with the clamp module body so that the dry powder drug device accommodating cavity and the locking groove form a dry powder drug device locking cavity, and the locking block and the clamp module body can be connected together by buckle locks arranged on both sides.

[0018] Furthermore, a prompt module is also provided in the host module.

[0019] Compared with the prior art, the flow monitor for dry powder pharmaceutical devices disclosed in the present invention has the following beneficial effects: the flow monitor for dry powder pharmaceutical devices disclosed in the present invention has a host module and a fixture module, and the host module and the fixture module are detachable structures. At the same time, an electrically connectable interface is provided between the host module and the fixture module, so that one host module can be suitable for fixture modules of dry powder pharmaceutical devices with different characteristics, thereby not only increasing the versatility of the host module, but also reducing the research and development costs of the enterprise, so that when a new dry powder pharmaceutical device is launched on the market, only a new fixture module needs to be developed, and it can be quickly applied to the flow monitoring of the new dry powder pharmaceutical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a first direction axis view of the flow monitor of the dry powder medical device disclosed in the present invention;

[0021] Figure 2 It is a second direction axis view of the flow rate monitor of the dry powder medical device disclosed in the present invention;

[0022] Figure 3 It is a side view of the flow monitor of the dry powder medicine device disclosed in the present invention;

[0023] Figure 4 This is a third-axis view of the flow monitor for dry powder medical devices disclosed in the present invention;

[0024] Figure 5 It is a cross-sectional view of the flow rate monitor for dry powder medical devices disclosed in the present invention;

[0025] Figure 6 It is an axial view of a second embodiment of the flow rate monitor for dry powder medical devices disclosed in the present invention;

[0026] In the figure: 1. host module; 10. host module housing; 11. first interface; 12. host module cover; 13. power cord outlet; 14. control main board installation cavity; 15. control main board; 2. fixture module; 20. fixture module body; 200. locking block accommodating cavity; 201. fixing ear; 21. airflow sampling main board; 22. second interface; 23. bolt; 24. dry powder medicine device accommodating cavity; 25. airflow sampling main board installation part; 250. airflow sampling main board installation part Air inspection port; 26. Dry powder medicine device locking device; 260. Drive screw; 261. Locking block; 262. Locking device mounting part; 263. Threaded structure; 264. Limiting block; 265. Drive handle; 27. Locking device; 270. Locking block; 271. Buckle lock; 272. Locking slot; 28. Air flow sampling mainboard mounting cavity; 280. Air flow sampling mainboard cover; 281. Air flow negative pressure sensing part; 3. Dry powder medicine device; 30. Air inlet of dry powder medicine device. DETAILED DESCRIPTION

[0027] like Figures 1 to 5 As shown, the flow monitor for dry powder medical devices disclosed in the present invention comprises: a host module 1 and a fixture module 2 detachably connected to the host module 1;

[0028] The host module 1 includes a host module housing 10 and a control mainboard 15 disposed in the host module housing 10. The host module housing 10 is provided with a first interface 11;

[0029] The fixture module 2 includes a fixture module body 20 and an airflow sampling mainboard 21 disposed in the fixture module body 20, and a second interface 22 is disposed on the fixture module body 20;

[0030] The first interface 11 and the second interface 22 can be connected via a data line to achieve electrical connection between the control mainboard and the airflow sampling mainboard 21 .

[0031] Specifically, in this embodiment, Figure 1 , Figure 2 and Figure 5 As shown, the host module housing 10 is a square structure, the host module housing 10 contains a control mainboard installation cavity 14, the control mainboard 15 is installed in the control mainboard installation cavity 14, a host module cover 12 is provided on one side of the host module housing 10, the host module cover 12 can be opened or closed to facilitate the installation or maintenance of the control mainboard, a power line outlet 13 is provided on one side of the host module housing 10, the power line of the control mainboard extends from the power line outlet 13 to facilitate connection with the power supply, in this embodiment, the power line outlet 13 is arranged at the lower end of the host module housing 10, and a first interface 11 is provided at the upper end of the host module housing 10, the first interface 11 corresponds to the data line interface on the control mainboard, the fixture module body 20 can clamp the dry powder drug device 3, and the airflow sampling mainboard 21 is provided on the fixture module body 20, and the fixture module main The body 20 is provided with a second interface 22, which corresponds to the data line interface on the airflow sampling mainboard 21. The first interface 11 and the second interface 22 can be connected through the data line, so as to realize the electrical connection between the control mainboard and the airflow sampling mainboard, and then realize the data transmission between the control mainboard and the airflow sampling mainboard (the circuit board of the host module and the circuit board on the fixture module are connected by a data line, and the wiring terminal is also plug-and-play). In this embodiment, the airflow sampling mainboard 21 is used to collect the airflow negative pressure near the air inlet 30 of the dry powder medicine device, and transmit the collected airflow negative pressure value to the control mainboard. The control mainboard can realize the monitoring of the airflow flow near the air inlet of the dry powder medicine device according to the obtained airflow negative pressure value. Because the flow of the medicine device nozzle has a corresponding relationship with the flow of the air inlet, the lung flow at the nozzle will be obtained. And provide instant prompts to the user.

[0032] The flow monitor of dry powder medicine equipment disclosed in the present invention has a host module and a fixture module, and the host module and the fixture module are detachable structures. At the same time, an electrically connectable interface is provided between the host module and the fixture module, so that a host module can be applied to the fixture modules of dry powder medicine equipment with different characteristics, thereby not only increasing the versatility of the host module, but also reducing the R&D cost of the enterprise, so that when a new dry powder medicine equipment is launched, only a new fixture module needs to be developed, and then it can be quickly applied to the flow monitoring of the new dry powder medicine equipment. That is, the present invention adopts the most standardized R&D ideas as possible, that is, the fixture is personalized, the host module and the airflow sampling mainboard (fixture circuit) are unified, so that although the fixtures of different medicine equipment are different, the detection airways of the inhaled airflow of the medicine equipment are also different, but starting from the monitoring chip at the end of the airway, they are all standardized. In this way, only the design of the medicine equipment fixture needs to be paid attention to, and the others are standardized, thereby not only increasing the versatility of the host module, but also reducing the R&D cost of the enterprise and shortening the R&D cycle. Furthermore, in the present application, the clamp module body is specially customized according to the shape of the dry powder medical device (there is only one main unit, and the clamp module body is different according to the medical device), but the small circuit board (airflow sampling main board) on the clamp module is standard. The design idea of ​​the circuit board is to use a circuit composed of the least electronic components to complete the collection of airflow differential pressure. In this embodiment, the circuit board is 45mm long and 12.5mm wide (the purpose of the small circuit board is that the differential pressure sensor chip thereon can be flexibly placed on the clamp module corresponding to the air inlet of the dry powder medical device. The components of the circuit board: 1 differential pressure sensor chip, 1 voltage regulator power supply chip, 2 chip resistors, and 2 chip capacitors).

[0033] Furthermore, the host module housing 10 is connected to the fixture module body 20 via snaps or bolts 23 .

[0034] Specifically, in this embodiment, the fixture module body and the host module shell can be connected by a snap connection method such as a dovetail groove or a "T"-shaped groove, that is, a dovetail groove or a "T"-shaped groove / dovetail protrusion or a "T"-shaped protrusion is provided on the fixture module body, and a dovetail protrusion or a "T"-shaped protrusion / dovetail groove or a "T"-shaped groove is provided on the host module shell, thereby realizing quick connection and disassembly of the two. Preferably, the fixture module body and the host module shell are connected by bolts. Figure 2As shown in , a fixing ear 201 is provided on one side of the fixture module body 20, and a countersunk hole is provided on the fixing ear 201, and a threaded hole is provided on the host module housing 10, and the fixture module body 20 and the host module housing 10 can be conveniently and quickly connected through structures such as countersunk bolts. Therefore, when different types of dry powder medical devices are used, different fixtures can be quickly replaced to complete their flow monitoring, or when new dry powder medical devices are launched on the market, the connection with the host module is achieved through this structure. In order to ensure the reliable connection between the fixture module body 20 and the host module housing 10, two bolts are provided between the fixture module body 20 and the host module housing 10, one of which is set on the fixing ear, and the other is set in the dry powder medical device accommodating chamber 24.

[0035] Furthermore, a dry powder medical device accommodating cavity 24 is provided on the clamp module body 20, and an airflow sampling mainboard mounting portion 25 is provided on the clamp module body 20 at a position corresponding to the air inlet 30 of the dry powder medical device, and the airflow sampling mainboard mounting portion 25 is provided with the airflow sampling mainboard 21.

[0036] Specifically, in the present embodiment, a dry powder medicine device accommodating chamber 24 matching the outer shape of the dry powder medicine device is provided on the fixture module body 20, and the dry powder medicine device 3 can be placed in the dry powder medicine device accommodating chamber 24, with the medicine device suction nozzle facing the outside of the fixture module body 20, and an airflow sampling mainboard mounting portion 25 is provided at a position corresponding to the air inlet of the dry powder medicine device on the fixture module body 20, and an airflow sampling mainboard mounting portion 25 is provided with an airflow sampling mainboard mounting chamber 28, and the airflow sampling mainboard 21 is mounted in the airflow sampling mainboard mounting chamber 28, and the air detection port of the airflow sampling mainboard mounting portion 25 is opposite to the air inlet 30 of the dry powder medicine device, so that when the user passes through the medicine device, the airflow sampling mainboard mounting portion 25 is provided with an airflow sampling mainboard mounting chamber 28. When the suction nozzle of the dry powder medicine device inhales, the outside gas can enter the dry powder medicine device through the air inlet of the dry powder medicine device. At the same time, the air detection port of the airflow sampling mainboard installation part 25 is set at the air inlet of the dry powder medicine device, so that when the outside gas enters the dry powder medicine device through the air inlet of the dry powder medicine device, a negative pressure is formed at the air detection port 250 of the airflow sampling mainboard installation part. The pressure difference sensor on the airflow sampling mainboard 21 can obtain the air pressure in the airflow sampling mainboard installation part, and transmit it to the control host through the data line, so that the control host can monitor the flow near the air inlet of the dry powder medicine device according to the obtained airflow negative pressure value, and provide instant prompts as needed according to different usage scenarios. In this embodiment, in order to facilitate the installation and maintenance of the airflow sampling mainboard, an airflow sampling mainboard cover plate 280 is provided on the airflow sampling mainboard installation part 25, and the airflow sampling mainboard cover plate 280 is detachably installed on the airflow sampling mainboard installation part 25 by screws and other structures.

[0037] Furthermore, a dry powder medical device locking device 26 is provided on the side of the clamp module body 20 opposite to the airflow sampling mainboard mounting portion 25. When the dry powder medical device 3 is placed in the dry powder medical device accommodating chamber 24, the dry powder medical device locking device 26 can lock the dry powder medical device 3 in the dry powder medical device accommodating chamber 24 and make the air inspection port 250 of the airflow sampling mainboard mounting portion fit with the air inlet 30 of the dry powder medical device.

[0038] Specifically, in this embodiment, Figure 1 and Figure 3 As shown, a columnar airflow negative pressure sensing part 281 is provided on one side of the clamp module body 20. The airflow negative pressure sensing part 281 has a hollow structure. A hose is provided in the airflow negative pressure sensing part. One end of the hose is inserted into the pressure difference sensor on the airflow sampling mainboard, and the other end is arranged at the end of the airflow negative pressure sensing part to form an air inspection port of the airflow sampling mainboard mounting part. The differential pressure sensor chip used in the present application has two sensing heads, one sensing head is a low-pressure sensing head (the head is used to sense the air pressure of the flowing air in real time), and the other is a high-pressure sensing head (the head is used to sense the air pressure of the still air, that is, a standard atmospheric pressure). When air flows into the air inlet, the air pressure of the flowing airflow will be lower than the atmospheric pressure. The sensor obtains the airflow negative pressure value through the pressure difference between the two sensing heads. One end of the hose is inserted into the low-pressure sensing head of the pressure difference sensor. , and the other end is located at the air inlet of the dry powder pharmaceutical device, so that the low-pressure sensing head of the differential pressure sensor is connected to the air inlet of the dry powder pharmaceutical device to detect the airflow at the air inlet. A dry powder pharmaceutical device locking device 26 is provided on the other side of the fixture module body 20. When the dry powder pharmaceutical device 3 is placed in the dry powder pharmaceutical device accommodating chamber 24, the dry powder pharmaceutical device locking device 26 can lock the dry powder pharmaceutical device 3 in the dry powder pharmaceutical device accommodating chamber 24, and make the air inspection port 250 of the airflow sampling mainboard mounting part fit with the air inlet 30 of the dry powder pharmaceutical device. In this embodiment, since the airflow negative pressure sensing part and the dry powder pharmaceutical device locking device are provided, the air inspection port 250 of the airflow sampling mainboard mounting part can fit with the air inlet 30 of the dry powder pharmaceutical device, thereby ensuring the accuracy of the pressure difference value collected by the differential pressure sensor to ensure the accuracy of flow monitoring.

[0039] Furthermore, the dry powder medicine locking device 26 includes a driving screw 260 and a locking block 261;

[0040] A locking device mounting portion 262 is provided on the side of the clamp module body 20 opposite to the airflow sampling mainboard mounting portion 25, and a threaded structure is provided in the locking device mounting portion 262. The driving screw 260 is connected to the threaded structure, and the driving screw 260 is connected to the locking block 261 at one end facing the dry powder drug device accommodating chamber 24. By rotating the driving screw 260, the locking block 261 can be driven to move toward or away from the dry powder drug device accommodating chamber 24.

[0041] Specifically, in this embodiment, Figure 5 As shown, a locking device mounting portion 262 is provided on the side of the clamp module body 20 opposite to the airflow sampling mainboard mounting portion 25, and a threaded structure is provided in the locking device mounting portion 262. The threaded structure can be obtained by directly processing the locking device mounting portion, or by arranging a nut or other structure on the locking device mounting portion. A driving screw is installed on the locking device mounting portion, and the driving screw 260 is connected to the threaded structure. A locking block accommodating chamber 200 is provided on the side of the locking device mounting portion 262 facing the dry powder drug device accommodating chamber 24. The locking block 260 is placed in the locking block accommodating chamber 200 and can slide therein. A limiting block 264 is fixed to the end of the driving screw 260. The limiting block 264 is a stepped shaft structure, and a threaded blind hole is provided at the end of the stepped shaft. The limiting block 264 is connected to the end of the driving screw 260 to limit the driving screw to the locking device mounting portion. At the same time, the limiting block 264 and the locking block 260 can be rotatable. Dynamic connection (in this embodiment, the locking block 260 is provided with a connecting cavity of a stepped structure, and the limit block 264 of the stepped shaft structure is arranged in the connecting cavity, so that the two can rotate relative to each other and prevent the two from completely separating), the other end of the driving screw 260 is provided with a driving part (driving handle 265), through which the operator can drive the driving screw to rotate, and then drive the screw to move in the direction close to or away from the dry powder drug device containing cavity 24 under the action of the threaded structure in the locking device mounting part 262, so as to lock the dry powder drug device in the dry powder drug device containing cavity or release the lock, and at the same time, when the dry powder drug device is locked in the dry powder drug device containing cavity, the air inlet of the dry powder drug device can be fitted with the air inspection port 250 of the airflow sampling mainboard mounting part, thereby ensuring the accuracy of the pressure difference value collected by the pressure difference sensor, so as to ensure the accuracy of flow monitoring, and the fixture module of this structure can be used for drug device structures such as fluticasone.

[0042] Furthermore, the fixture module body 20 is provided with a locking device 27 for locking the dry powder medical device 3 placed in the dry powder medical device accommodating chamber 24 in the dry powder medical device accommodating chamber 24 .

[0043] Specifically, in another embodiment, Figure 6As shown, the fixture module body 20 is provided with a dry powder medicine device accommodating chamber 24, and the fixture module body 20 is also provided with a locking device, and the locking device 27 includes a locking block 270 and a buckle lock 271;

[0044] The locking block 270 is provided with a locking groove 272, and the locking block 270 can be buckled with the clamp module body 20 so that the dry powder drug-device accommodating chamber 24 and the locking groove 272 form a dry powder drug-device locking chamber, and the locking block 270 and the clamp module body 20 can be connected together by the buckle locks 271 arranged on both sides, and the dry powder drug-device can be placed in the dry powder drug-device locking chamber. The clamp module of this structure can be used for dry powder inhaler drug-device structures such as HandiHaler.

[0045] Furthermore, a prompt module is also provided in the host module.

[0046] Specifically, since the host module is also provided with a prompt module, the control mainboard can issue corresponding prompts according to the airflow negative pressure value obtained by the airflow sampling mainboard, so as to issue relevant prompts to the operator or user.

[0047] The process of flow monitoring by the flow monitor of the dry powder medical device disclosed in the present invention is as follows:

[0048] The host module in the present application is connected to the cloud platform, and the cloud platform is provided with a relevant configuration interface for controlling the device. Relevant parameters can be set through the configuration interface, such as the minimum flow rate L0 for starting recording, the standard pulmonary flow rate L1 for inhaled dry powder, and the upper limit L2 for inhaled dry powder. When the device is used for flow monitoring, the fixture module suitable for the dry powder drug device to be measured is first installed on the host module, and the two are electrically connected through a data cable. The dry powder drug device is clamped in the fixture module, and the corresponding parameters are set on the cloud platform. The user holds the inhalation nozzle of the dry powder drug device installed in the instrument fixture; the user inhales, and when the pulmonary airflow reaches L0, the instrument starts recording; when the pulmonary airflow is between L1 and L2, the instrument beeps for a long time (the prompt module emits a long beep to indicate that the user's inhaled airflow is qualified); when the airflow is greater than L2, the instrument beeps at a high frequency (indicating that the user's pulmonary airflow is too large); when the airflow is less than L1, the instrument is silent (indicating that the user's pulmonary airflow is too small). Too much or too little pulmonary airflow is an unqualified drug administration process. Only when the airflow into the lungs is between L1 and L2, is the pre-set appropriate drug delivery process. The instrument can monitor the airflow into the lungs during the entire drug delivery process, and use sound to prompt the high and low conditions of the airflow into the lungs in real time, providing instant prompts to the user. At the same time, the instrument records the entire inhalation process and forms an inhalation case report for subsequent evaluation.

[0049] The interactive working process of the host module of the flow monitor for dry powder drugs and devices disclosed in the present invention, the cloud platform (website) and the fixture module is as follows: the host module is powered on -> the host module communicates with the differential pressure chip on the circuit board on the fixture module, reads the chip SN, and uploads the SN to the cloud platform -> the cloud platform receives the SN from the instrument, that is, the correspondence between the lung flow at the drug device suction nozzle and the airflow negative pressure at the drug device air inlet stored in advance on the cloud platform (different drugs and devices, different monitoring airways, different differential pressure flow correspondence, SN is the key to this relationship. The instrument uniformly provides a process for establishing this relationship for different fixtures and drugs and devices. That is, no matter what kind of drug device, it only needs to form a specified airflow at the drug device suction nozzle through a flow meter and an air pump. At this time, the instrument records the airflow at the suction nozzle corresponding to the airflow negative pressure at the drug device air inlet) and the configuration information of the instrument is transmitted to the instrument host module. After receiving this information from the host module, the instrument starts to perform operations -> when the host module starts recording according to the configuration information, it receives the differential pressure signal sample array from the flow monitoring circuit on the fixture module, and uploads the sample array to the cloud platform.

[0050] Specifically, in order to obtain the lung inflow rate of the suction nozzle of various types of dry powder pharmaceutical devices, the present application arranges an airflow sampling mainboard installation part at the pharmaceutical device fixture module near the air inlet of the pharmaceutical device, and the airflow sampling mainboard installation part is provided with an airflow sampling mainboard capable of collecting the negative pressure of the airflow at the air inlet of the pharmaceutical device. Since the negative pressure of the airflow at the air inlet of the dry powder pharmaceutical device has a certain corresponding relationship with the lung inflow rate at the suction nozzle, the lung inflow rate at the suction nozzle can be conveniently determined by the negative pressure of the airflow at the air inlet of the dry powder pharmaceutical device. The corresponding relationship between the negative pressure of the airflow at the air inlet of the dry powder pharmaceutical device and the lung inflow rate at the suction nozzle can be determined in the following way: when debugging the equipment, connect the suction nozzle with an air pump with a flowmeter function, generate different flow rates by adjusting the air pump, and simultaneously obtain the negative pressure value at the air inlet of the dry powder pharmaceutical device collected by the differential pressure sensor when the air pump is at different flow rates. According to this method, the functional relationship between the inhalation flow of the nozzle and the negative pressure of the airflow at the air inlet can be fitted and stored in the cloud platform database, and each functional relationship is made to correspond to the corresponding fixture module serial number (the differential pressure sensor of each fixture module has an SN, and the SN code is the serial number on the chip used to identify the device model). In this way, the function is bound to a specific fixture module. For different fixtures of various medical devices, there are corresponding function curves on the cloud platform. When the user uses the medical device to inhale the powder, the instrument uploads the sampling value of the negative pressure of the airflow at the air inlet to the cloud platform in real time, and the cloud platform calculates the user's inhalation flow through the function curve in real time.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flow monitor for dry powder medical devices, characterized in that: include: A host module and a fixture module detachably connected to the host module; The host module comprises a host module housing and a control mainboard arranged in the host module housing, and the host module housing is provided with a first interface; The fixture module comprises a fixture module body and an airflow sampling mainboard arranged in the fixture module body, and the fixture module body is provided with a second interface; The first interface and the second interface can be connected via a data line to achieve electrical connection between the control mainboard and the airflow sampling mainboard.

2. The flow monitor for dry powder medical devices according to claim 1, characterized in that: The host module housing is connected to the fixture module body by snaps or bolts.

3. The flow rate monitor for dry powder medical devices according to claim 2, characterized in that: The fixture module body is provided with a dry powder medicine device accommodating cavity, and an airflow sampling mainboard mounting portion is provided at a position on the fixture module body corresponding to the air inlet of the dry powder medicine device, and the airflow sampling mainboard mounting portion is provided with the airflow sampling mainboard.

4. The flow monitor for dry powder medical devices according to claim 3, characterized in that: A dry powder medicine locking device is provided on the side of the clamp module body opposite to the airflow sampling mainboard mounting portion. When the dry powder medicine is placed in the dry powder medicine accommodating chamber, the dry powder medicine locking device can lock the dry powder medicine in the dry powder medicine accommodating chamber and make the air inspection port of the airflow sampling mainboard mounting portion fit with the air inlet of the dry powder medicine.

5. The flow rate monitor for dry powder medical devices according to claim 4, characterized in that: The dry powder medicine locking device comprises a driving screw and a locking block; A locking device mounting portion is provided on the side of the clamp module body opposite to the airflow sampling mainboard mounting portion, and a threaded structure is provided in the locking device mounting portion. The driving screw is connected to the threaded structure, and the driving screw is connected to the locking block at one end facing the dry powder drug device containing chamber. By rotating the driving screw, the locking block can be driven to move toward or away from the dry powder drug device containing chamber.

6. The flow rate monitor for dry powder medical devices according to claim 3, characterized in that: The clamp module body is provided with a locking device for buckling the dry powder medical device placed in the dry powder medical device accommodating chamber into the dry powder medical device accommodating chamber.

7. The flow rate monitor for dry powder medical devices according to claim 1, characterized in that: The locking device comprises a locking block and a hasp lock; The locking block is provided with a locking groove, and the locking block can be buckled with the clamp module body so that the dry powder drug device accommodating cavity and the locking groove form a dry powder drug device locking cavity, and the locking block and the clamp module body can be connected together by buckle locks arranged on both sides.

8. The flow monitor for dry powder medical devices according to claim 1, characterized in that: A prompt module is also arranged in the host module.

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