Powder suction device and its control method

Abstract

The present invention relates to a powder inhalation device and a control method thereof, which aerosolize powder and enable a user to inhale the powder. [Solution] The powder suction device 1 includes a storage tank 11 for storing powdered medium, a powder loading unit 12 for receiving the medium from the storage tank, an airflow passage 13 through which the medium received in the powder loading unit flows with air, an airflow sensor 14 for detecting the pressure or flow velocity of the airflow passage, a powder diffusion unit 15 for diffusing the medium received in the powder loading unit into the airflow passage, and a control unit 20 that receives a pressure signal or flow velocity signal from the airflow sensor and controls the powder diffusion unit.

Description

TECHNICAL FIELD

[0001] The present invention relates to a powder inhalation device that aerosolizes powder to allow a user to inhale the powder and a control method therefor. BACKGROUND ART

[0002] A powder inhalation device administers powdered medicaments for the treatment of asthma and other respiratory diseases to a user or, as in the case of providing a user with nicotine-containing powder, is a device for aerosolizing powder and supplying the powder so that a user can inhale it.

[0003] The aerosolized powder must be supplied to the user in a sufficient amount to suit the intended purpose .

[0004] Conventional powder inhalation devices have operated passively, relying on the inhalation effort of the user attempting to inhale the powder . However, when the powder inhalation device is operated passively to inhale powder, inhalation ability can vary from user to user, and thus sufficient powder cannot be supplied.

[0005] Particularly, when the user's inhalation ability is insufficient, a sufficient amount of powder cannot be supplied to the user .

[0006] Furthermore, depending on the properties of the powder, if the powder agglomerates or adheres, the airflow will not be smooth and the powder supply will become insufficient.

[0007] Therefore, there is a need for a powder inhalation device that can reliably supply a sufficient amount of powder to a user regardless of the user's inhalation ability . SUMMARY OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION

[0008] The powder suction devices according to various embodiments of this disclosure stably dispense powder based on the user's suction ability. It is something that is supplied.

[0009] Furthermore, the powder inhalation devices according to the various embodiments of this disclosure have insufficient inhalation capabilities for the user. Even in such cases, it will supply the user with sufficient powder.

[0010] Furthermore, the powder inhalation device according to the various embodiments of this disclosure can be used depending on the user's inhalation timing. This supplies powder to the system.

[0011] The problems that we seek to solve through the embodiments of this disclosure are not limited to the aforementioned problems. Issues not mentioned or addressed can be found in this specification and the accompanying drawings, which pertain to the technical aspects to which this embodiment belongs. It would be clearly understandable to anyone with ordinary knowledge in the field. [Means for solving the problem]

[0012] In one embodiment, the powder suction device includes a storage tank in which a powdered medium is stored, and a medium that is drawn from the storage tank. A powder loading section that transmits the substance, the medium transmitted to the powder loading section, and air. An airflow passage through which a mixed airflow flows, and an airflow sensor that detects changes in the airflow in the airflow passage. (c) Powder diffusion, which diffuses the medium transferred to the powder loading section toward the airflow passage. The unit receives signals from the airflow sensor and, based on the changes in airflow in the airflow passage, the powder It also includes a control unit that operates the end-diffusion section.

[0013] In other embodiments, the control method of the powder suction device is such that the powder medium is transported by the powder rod detecting a change in airflow in an airflow passage that provides fluid communication between the loading section and the exterior of the powder inhalation device a suction capacity measurement step; and operating the powder diffusion section based on the change in airflow in the airflow passage to diffuse the medium transferred to the powder loading section toward the airflow passage, the method may also include a powder inhalation assistance step. to diffuse the medium transferred to the powder loading section toward the airflow passage, the method may also include a powder inhalation assistance step.

Effects of the Invention

[0014] The powder inhalation device according to various embodiments of the present disclosure can stably supply powder to a user in accordance with the user's inhalation capacity. can stably supply powder to a user in accordance with the user's inhalation capacity.

[0015] Further, the powder inhalation device according to various embodiments of the present disclosure can supply a sufficient amount of powder to the user even when the user's inhalation capacity is insufficient. can supply a sufficient amount of powder to the user even when the user's inhalation capacity is insufficient.

[0016] Further, the powder inhalation device according to various embodiments of the present disclosure can supply powder to the user in accordance with the user's inhalation timing. can supply powder to the user in accordance with the user's inhalation timing.

[0017] Effects of the present embodiment are not limited to the effects described above, and effects not mentioned can be clearly understood by those skilled in the art to which the present embodiment pertains from the present specification and the accompanying drawings. clearly understood by those skilled in the art to which the present embodiment pertains from the present specification and the accompanying drawings.

Brief Description of Drawings

[0018] [Figure 1] FIG. 1 is a schematic diagram of a powder inhalation device according to one embodiment.

[0019] [Figure 2] FIG. 2 is a schematic diagram of a powder inhalation device according to another embodiment.

[0020] [Figure 3] FIG. 3 is a schematic diagram of a powder inhalation device according to still another embodiment.

[0021] [Figure 4] This is a schematic diagram of a powder suction device according to another embodiment.

[0022] [Figure 5] This is a schematic diagram of a powder suction device according to another embodiment.

[0023] [Figure 6] This is a block diagram of a powder suction device according to one embodiment.

[0024] [Figure 7] This graph illustrates the operation of a powder inhalation device according to one embodiment.

[0025] [Figure 8] This graph illustrates the operation of a powder inhalation device according to another embodiment.

[0026] [Figure 9] This is a flowchart illustrating a control method for a powder suction device according to one embodiment.

[0027] [Figure 10] This is a flowchart illustrating a control method for a powder inhalation device according to another embodiment.

[0028] [Figure 11] This graph illustrates a method by which a powder suction device according to one embodiment supplies sufficient powder based on the user's suction ability. [Modes for carrying out the invention]

[0029] The terminology used in this embodiment is, as far as possible, current, taking into consideration the function of the present invention. While widely used and general terminology has been selected, it reflects the meaning of engineers working in this field. It can also vary depending on the diagrams, precedents, or the emergence of new technologies. In addition, in certain cases, the applicant Some terms were arbitrarily selected, and in such cases, their meanings should be explained in detail in the description of the invention. The following is described. Therefore, the terms used in this invention are not merely names of terms, but rather the terms themselves. It must be defined based on the meaning of and the overall content of the present invention.

[0030] When a part of the specification "includes" a certain component, it specifically means that Unless otherwise stated, this does not exclude other components, but rather includes other components. It also means that it is something that is included. Also, the "~ parts" mentioned in the specification. The term refers to a unit that handles at least one function or operation, and it is a hardware unit. Alternatively, it can be realized through software, or through the combination of hardware and software. It can also be realized through combination.

[0031] As used in this disclosure, expressions such as "at least one of the arrays" When a component is in front of a modified component, the entire component is modified, rather than each of the arranged components. To decorate. For example, the expression "at least one of a, b, and c" can be expressed as "a, Includes "b, c", "a and b", "a and c", "b and c", or "a, b and c". It must be interpreted in this way.

[0032] Two variables being "proportional" means that if one variable increases, the other variable also increases, and the first variable increases. It must be interpreted that if one variable decreases, other variables also decrease, and this is a linear function. It must be interpreted that this includes not only relationships but also other functional relationships such as quadratic function relationships. stomach.

[0033] In the following, referring to the attached drawings, embodiments of the present disclosure are considered to be common in the art. The instructions will be detailed so that those with the necessary knowledge can easily implement them.

[0034] This disclosure is implemented in a form that can be embodied in various embodiments of powder suction devices, or Although it is embodied and implemented in a variety of different forms, it is not limited to the embodiments described herein. It is not something that can be done.

[0035] The embodiments of this disclosure will be described in detail below with reference to the drawings.

[0036] Figures 1 to 5 are schematic diagrams of powder suction devices according to various embodiments of the present disclosure.

[0037] The internal structure of the powder suction device 1 is limited to what is shown in Figures 1 to 5. There is no such thing. In other words, the design of the powder suction device 1 is such that the configuration shown in Figures 1 to 5 is Some parts may be omitted, or new elements may be added.

[0038] Figure 1 is a schematic diagram of a powder suction device according to one embodiment.

[0039] Referring to Figure 1, the powder suction device 1 consists of a storage tank 11, a powder loading section 12, and an air circulation system. Even if it includes a channel 13, an airflow sensor 14, a powder diffusion unit 15, a control unit 20, and a battery 30. be.

[0040] The airflow passage 13 also includes an airflow inlet 131 and an airflow outlet 132.

[0041] When a user uses the powder inhalation device 1, the user can draw in air using the air outlet 132. When the inlet operation is performed, outside air is drawn into the airflow passage 13 via the airflow inlet 131. The air drawn into the airflow passage 13 can be discharged to the user via the airflow outlet 132.

[0042] The airflow through the airflow passage 13 flows from the airflow inlet 131 towards the airflow outlet 132. The airflow through the airflow passage 13 is relatively considered to be upstream the closer it is to the airflow inlet 131. This allows for a relative position to be called downstream, as it is closer to the airflow outlet 132.

[0043] To aid in understanding, the direction can be defined as follows:

[0044] The direction in which the airflow is discharged from the air outlet 132 of the powder suction device 1 is called the upward direction, and the opposite direction is called the upward direction. This can be called the lower side. The direction defined here relates to the embodiment referring to Figure 1. This can be invoked not only in the explanation but also throughout this disclosure.

[0045] The structure of the airflow passage 13 and the arrangement of the airflow inlet 131 and airflow outlet 132 shown in Figure 1 are as follows: This is an illustrative example, in which an airflow is drawn into the powder suction device 1 from the outside and discharged to the outside. A variety of structures may be applied to this disclosure.

[0046] The powder suction device 1 can accommodate a storage tank 11 in its internal space. Although it is a component that forms a space within, its shape is not restricted. (Storage tank) 11 can store a powdered medium. The powdered medium stored in the storage tank 11 is stored It can be moved inside tank 11.

[0047] The powdered medium may also contain nicotine.

[0048] Another example is a powdered medium containing a drug for treating respiratory diseases in asthma patients. There are also others.

[0049] A storage tank outlet 111 may be formed in the storage tank 11, which is connected to the internal space of the storage tank 11. The powder medium contained inside the storage tank 11 exits the storage tank outlet 111 and leaves the storage tank 11. It can be discharged into the body.

[0050] According to one embodiment, the storage tank outlet 111 may be formed at the bottom of the storage tank 11. In this arrangement, the powdered medium contained inside the storage tank 11 is subjected to gravity, It can be moved to the bottom and discharged to the storage tank outlet 111.

[0051] A mesh or a mesh-like structure (not shown) may be placed at the outlet 111 of the storage tank. The mesh structure (not shown) prevents an excessive amount of powder medium from being discharged from inside the storage tank 11. Furthermore, it can assist in ensuring that the powder medium is discharged appropriately and sufficiently.

[0052] The powder loading section 12 is a component that receives the powder medium discharged from the storage tank 11. The powder loading section 12 receives the powder medium discharged from the storage tank 11 through the air outlet 13. These are the components that are passed through before being discharged into the second stage.

[0053] According to one embodiment, the powder loading section 12 may be located below the storage tank 11.

[0054] The shape of the powder loading section 12 can be formed into a variety of shapes that can transport the powder medium. .

[0055] As an example, the powder loading section 12 is designed to efficiently transfer the powder medium, and is located on the lower side. It can be formed into a vessel shape that is convex on one side and concave on the other.

[0056] As another example, the powder loading section 12 may be formed in a flat shape.

[0057] The powder medium transmitted to the powder loading section 12 is moved by the airflow through the airflow passage 13. It may be guided towards the airflow outlet 132.

[0058] According to one embodiment, the airflow sensor 14 may be arranged adjacent to the airflow passage 13. The airflow sensor 14 can detect the pressure, flow rate, and / or flow velocity inside the airflow passage 13. The flow sensor 14 includes a pressure sensor (not shown), a flow sensor (not shown), and / or a flow velocity sensor. It also includes (not shown).

[0059] The powder diffusion section 15 directs the powder medium transmitted to the powder loading section 12 toward the airflow passage 13. It is a component that spreads and disperses.

[0060] Preferably, the powder diffusion unit 15 disperses the powder medium transferred to the powder loading unit 12. The airflow flowing through the flow channel 13 can be diffused downstream, that is, toward the airflow outlet 132. .

[0061] Referring to Figure 1, the powder diffusion unit 15 may be located below the powder loading unit 12.

[0062] The powder diffusion section 15 may be in physical contact with the powder loading section 12.

[0063] In this disclosure, the arrangement of the powder diffusion unit 15 as described with reference to the drawings is illustrative. Yes, and the position of the powder diffusion section 15 is not limited to that. That is, the powder diffusion section 1 5 is placed in various positions to diffuse the powder medium into the airflow passage, but such arrangement The placement is also included within the scope of this disclosure.

[0064] In the following, to avoid redundant explanations, the powder suction device 1 described with reference to Figure 1 is described below. Specific descriptions of components that overlap with the description of one embodiment may be omitted.

[0065] Figure 2 is a schematic diagram of a powder suction device 1 according to another embodiment.

[0066] According to this embodiment, the powder diffusion section is a vibration device that applies vibration to the powder loading section 12. It also contains 15a.

[0067] The vibration applied by the vibration device 15a to the powder loading section 12 is performed at a predetermined frequency. Then, by shaking or tapping the powder loading section 12, the powder load This refers to a repetitive motion that causes the heading unit 12 to vibrate.

[0068] The vibration device 15a vibrates the powder loading section 12, thereby vibrating the powder medium. This allows for maximizing the diffusion efficiency of the powder medium toward the airflow passage 13.

[0069] Preferably, the vibrator 15a vibrates the powder loading section 12 to agitate the powder medium. The airflow flowing through the flow channel 13 can be diffused downstream, that is, toward the airflow outlet 132. .

[0070] According to this embodiment, the powder loading section 12 does not include a diaphragm (not shown). Yes. The diaphragm is vibrated by vibrations generated by the vibration device 15a, or by vibration device 1 The vibrations generated by 5a are transmitted to the powder medium, or generated by the vibration device 15a. It can be formed by shapes and materials that can amplify vibrations.

[0071] For example, the diaphragm can be formed in a thin-film structure.

[0072] The vibration device 15a according to this embodiment has various methods and structures that can vibrate the powder diffusion section 15. It can be realized by [this].

[0073] For example, the vibration device 15a is a piezoelectric element that can convert electrical energy into pressure. It also includes (not shown).

[0074] As another example, the vibration device 15a uses an ultrasonic vibration method. The powder diffusion section 15 can be vibrated.

[0075] As yet another example, the vibrating device 15a includes a motor and a cam, and a powder diffusion section It can cause 15 to vibrate.

[0076] As yet another example, the vibration device 15a is a solenoid type actuator. It includes an e-actuator and can vibrate the powder diffusion section 15.

[0077] The vibration frequency of the vibration device 15a is a low frequency between approximately 3 and 60 Hz, and / or approximately 25 kHz. It also encompasses a diverse range of frequencies, such as high frequencies between Hz and 2MHz.

[0078] The control unit 20 controls the amplitude, frequency, and other parameters of the vibration applied by the vibration device 15a, and controls the intensity of the vibration. This allows for the control of the diffusion rate of the powder medium.

[0079] As described above, the powder suction device 1 can be adjusted as needed by adjusting the amplitude and frequency of vibration. This allows for adjustment of the degree of diffusion of the powder medium.

[0080] The powder suction device 1 according to this embodiment controls the diffusion rate of the powder medium via the vibration device 15a. By doing so, the concentration of the powder medium contained in the airflow is controlled, and the user's inhalation capacity and / or Depending on the timing of inhalation, sufficient powder medium may be supplied to the user, and if the user's inhalation ability is insufficient... This also guarantees a reliable supply of powdered media.

[0081] Figure 3 is a schematic diagram of a powder suction device 1 according to yet another embodiment.

[0082] According to this embodiment, the powder diffusion unit is an impact device that applies impact to the powder loading unit 12. It also includes 15b.

[0083] The impact applied by the impact device 15b to the powder loading section 12 occurs once or several times. Generated by instantaneous contact with the powder loading unit 12 or by an action of striking it. It is possible.

[0084] The impact applied by the impact device 15b to the powder loading section 12 is the same operation, predetermined This differs from the vibration of the vibration device 15a in Figure 2, which is performed periodically multiple times at intervals.

[0085] The impact device 15b applies a physical impact to the powder loading section 12, directing the airflow passage 13. This can maximize the diffusion efficiency of the powder medium.

[0086] Preferably, the impact device 15b applies impact to the powder loading section 12, and the powder medium The airflow flowing through the airflow passage 13 is diffused downstream, that is, toward the airflow outlet 132. ru.

[0087] As mentioned above, the powder loading section 12 is shaped concave (i.e., convex toward the bottom). This can be achieved. In that case, the impact applied by the powder diffusion unit 15 causes the powder loading The shape of the loading section 12 is temporarily deformed, making the powder medium in the powder loading section 12 more effective. It can be diffused toward the airflow passage 13.

[0088] The impact device 15b may also include, for example, a torsion spring and a switch. The torsion spring, when activated by the switch, releases elastic potential energy - This can be controlled to convert the energy into kinetic energy and apply an impact to the powder diffusion section 15.

[0089] As another example, the impact device 15b may also include an electric motor (not shown). By utilizing a motor and power transmission unit, rotational kinetic energy is converted into linear kinetic energy. A linear electric motor is used to either apply an impact to the powder diffusion section 15 or generate a linear displacement. By using the device, an impact can be applied to the powder diffusion section 15.

[0090] The control unit 20 adjusts the frequency and intensity of the impact applied by the impact device 15b, thereby controlling the diffusion of the powder medium. The quantity can be controlled.

[0091] The powder suction device 1 according to this embodiment controls the diffusion rate of the powder medium via the impact device 15b. By doing so, the concentration of the powder medium contained in the airflow is controlled, and the user's inhalation capacity and / or Depending on the timing of inhalation, a sufficient amount of powder medium can be supplied to the user. Also, if the user's inhalation ability is insufficient... Even in such cases, a reliable supply of the powder medium can be guaranteed.

[0092] Figure 4 is a schematic diagram of the powder suction device 1 according to yet another embodiment.

[0093] According to this embodiment, the powder diffusion section includes a blower 15c that generates fluid flow. But so.

[0094] Referring to Figure 4, the blower 15c is located below the storage tank 11, and in the powder loading section. It can be positioned above 12.

[0095] The blower 15c includes a rotatable blade, which is powered by electricity supplied from the battery 30. It can be rotated to generate airflow.

[0096] If the blower 15c generates an airflow that flows toward the powder loading section 12, Due to the airflow, the powder medium in the powder loading section 12 and the air flowing through the airflow passage 13 The mixing action is promoted.

[0097] Preferably, the blower 15c is located downstream of the airflow through the airflow passage 13, i.e., at the airflow outlet. An airflow can be generated in the direction toward 132.

[0098] The strength of the airflow generated by the blower 15c determines the amount of powder medium supplied to the air outlet 132. The quantity of quality can be adjusted.

[0099] The blower 15c generates an airflow toward the powder loading section 12, It can be positioned in any location. At the outlet of the blower 15c, the flow of air generated by the blower 15c A regulator (not shown) is provided, in which the open area for adjusting the volume and / or flow velocity can be adjusted. It is possible.

[0100] The control unit 20 adjusts the power intensity supplied from the battery 30 to the blower 15c, and the powder The amount of diffusion of the medium can be controlled. As another example, the control unit 20 is located at the outlet of the blower 15c. By adjusting the open area of ​​the regulator, the diffusion rate of the powder medium can be controlled.

[0101] The powder suction device 1 according to this embodiment controls the flow rate of the air passage 13 via the blower 15c and / Alternatively, the flow rate can be increased, by increasing the amount of powder medium supplied to the user. Depending on the user's inhalation ability and / or inhalation timing, a sufficient amount of powder medium is supplied to the user. Even if the suction capacity of the filter is insufficient, a reliable supply of the powder medium can be guaranteed.

[0102] The powder diffusion section of the powder suction device 1 of the embodiment described with reference to Figures 2, 3, and 4 is For each embodiment, one of the following: vibration device 15a, impact device 15b, or blower 15c It includes one, but the powder diffusion section includes a vibrator 15a, an impact device 15b, and a blower 15c It also includes two or more of the following components in combination.

[0103] For example, the powder diffusion unit may also include a vibrator 15a and a blower 15c. In addition, the vibration device 15a can apply vibration to the powder loading section 12, and the blower 15 c can diffuse the powder medium into the airflow passage 13. Operation of the vibrator 15a and blower 15c These can be done simultaneously. As another example, the powder diffusion unit may also include a vibrator 15a and an impactor 15b. In that case, the vibration device 15a generates periodic vibrations in the powder loading section 12, and the powder The final medium can be diffused into the airflow passage 13, and the impact device 15b distributes the powder medium through the airflow passage. The vibrations can be dispersed into the path 13. The vibration device 15a and the shock device 15b can be operated simultaneously. .

[0104] Figure 5 is a schematic diagram of a powder suction device 1 according to yet another embodiment.

[0105] Referring to Figure 5, the powder diffusion unit 15 may be positioned adjacent to the storage tank 11. The diffusion unit 15 can be physically connected to the storage tank 11.

[0106] In this embodiment, the powder diffusion unit 15 also includes a vibrator. According to the information provided, the vibrating device vibrates the storage tank 11 and the powder medium contained inside the storage tank 11 By vibrating it, the amount of powder medium transmitted to the powder loading section 12 is increased. Shut up.

[0107] The operating method of the vibration device according to this embodiment can be described by referring to the explanation in Figure 2. .

[0108] In this embodiment, the powder diffusion unit 15 also includes an impact device. According to the information, the impact device included in the powder diffusion unit 15 applies physical impact to the storage tank 11, and storage The powder medium adhering to the inner wall of the tank 11 is dropped, and the powder medium is moved by gravity to the bottom of the storage tank 11. The amount of powder medium transferred to the powder loading unit 12 is moved to this position. It can increase.

[0109] The operating method of the impact device according to this embodiment can be described by referring to the explanation in Figure 3. .

[0110] The powder suction device 1 according to this disclosure uses a vibrator or shocker to suction the inside of the storage tank 11 By controlling the amount of powder diffused into the powder loading section 12, the amount of powder contained in the airflow is controlled. The concentration of the powder medium is controlled, and sufficient powder is consumed depending on the user's inhalation ability and / or inhalation timing. The medium is supplied to the user, and even if the user's suction ability is insufficient, a reliable powder medium is provided. We can guarantee supply.

[0111] As another example, the powder diffusion unit 15 is provided with two or more units, and one of the powder diffusion units 15 is stored The other powder diffusion unit 15 is positioned adjacent to the tank 11, and is located below the storage tank 11. It is possible that multiple powder diffusion units 15 are arranged, each performing a powder diffusion operation. ru.

[0112] With the above arrangement, the powder diffusion unit 15, which is located adjacent to the storage tank 11, The amount of powder medium inside 11 that diffuses into the powder loading section 12 increases, and storage tank 1 The powder diffusion section 15 located below 1 is directed from the powder loading section 12 towards the airflow passage 13. This increases the amount of powder medium that is diffused, and thus increases the amount of powder medium supplied to the user. .

[0113] Figure 6 is a block diagram of a powder suction device 1 according to one embodiment.

[0114] Referring to Figure 6, the control unit 20 includes an airflow sensor 14, a powder diffusion unit 15, an output unit 16, and It can be electrically connected to the battery 30.

[0115] The airflow sensor 14 is one of the pressure sensor 141, flow sensor 142, and flow velocity sensor 143. It must include at least one, but is not limited to them. The shape of each sensor Since the appearance and structure can be intuitively inferred from the name, a detailed explanation may be omitted.

[0116] The pressure sensor 141 can sense the pressure of the airflow inside the airflow passage.

[0117] The flow sensor 142 can sense the flow rate of the airflow inside the airflow passage.

[0118] The flow velocity sensor 143 can sense the flow velocity of the airflow inside the airflow passage.

[0119] The airflow sensor 14 is based on at least one of the following: pressure change, flow rate change, and flow velocity change. It can detect user inhalation.

[0120] The airflow sensor 14 measures at least one of the following: pressure, flow rate, and flow velocity of the airflow inside the airflow passage. The physical quantities are detected, and based on the detected information, pressure signals, flow rate signals and / or flow velocity signals are generated. This can be transmitted to the control unit 20.

[0121] The control unit 20 can control the overall operation of the powder suction device 1.

[0122] The control unit 20 receives a signal from the airflow sensor 14 and responds to changes in the airflow in the airflow passage 13. Based on this, the powder diffusion unit 15 can be operated.

[0123] The control unit 20 controls the physical quantities (pressure, flow rate, and / or) detected by the signal from the airflow sensor 14. The powder diffusion unit 15 can be operated based on the detected values ​​(or flow velocity).

[0124] In one embodiment, the control unit 20 includes at least one processor (not shown). It is also an object. The processor is also embodied by an array of numerous logic gates, and is general-purpose. A microprocessor and a program that can be executed on the microprocessor are stored It is also realized through combination with memory. Furthermore, the processor is a different form of hardware The fact that it can also be embodied by wearables means that in the technical field to which this embodiment belongs, it is normal Anyone with knowledge should be able to understand it.

[0125] The control unit 20 controls the supply of power from the battery 30 to the powder diffusion unit 15. This allows for control of the operation of the powder diffusion unit 15. For example, the control unit 20 controls the battery 30 and the powder By controlling the switching of the switching element with respect to the diffusion section 15, the power supply can be controlled. ru.

[0126] The control unit 20 analyzes the detected values ​​of the physical quantities detected by the airflow sensor 14, and then The processes performed can be controlled.

[0127] The control unit 20 controls powder diffusion based on the detected values ​​of the physical quantities detected by the airflow sensor 14. The power supplied to the powder diffusion unit 15 is controlled so that the operation of unit 15 is started or stopped. Shut up.

[0128] The control unit 20 controls powder diffusion based on the detected values ​​of the physical quantities detected by the airflow sensor 14. The unit 15 is operated so that the amount of powder medium supplied to the user can be adjusted. The amount of power supplied to the end-diffusion section 15 and the duration for which power is supplied can be controlled.

[0129] One embodiment is a computer program module that is executed by a computer. It can also be embodied in the form of a recording medium containing command words that can be executed by a computer. A computer-readable medium is any available medium that can be accessed by a computer. It also includes both volatile and non-volatile media, and both separated and non-separated media. Computer-readable media include both computer recording media and communication media. It also includes. The computer recording medium contains computer-readable instruction words, The responsibility for storing information such as data structures, program modules, or other data. Volatile and non-volatile, separated and non-separated media embodied by any method or technology. This includes all of the above. The communication medium typically contains computer-readable command words and data. Other data of modulated data signals such as a structure, program module, or so It also includes other transmission mechanisms and any information transmission medium.

[0130] The output unit 16 can output and provide to the user information relating to the status of the powder suction device 1. The power unit 16 includes at least one of the display unit, the haptic unit, and the sound output unit. It is one of those things, but it is not limited to them. The display unit is a display When the device and the touchpad are implemented as a touchscreen with a layered structure, the The display unit can be used not only as an output device but also as an input device.

[0131] The display unit can visually provide the user with information related to the powder suction device 1. Example For example, information relating to the powder inhalation device 1 includes the charge / discharge status of the battery 30 of the powder inhalation device 1. , operating state of the powder diffusion unit 15, state in which the use of the powder suction device 1 is restricted (e.g., in the airflow passage) This can mean a variety of information such as foreign object detection, and the display unit is the Information can be output externally. The display unit may be, for example, a liquid crystal display panel (LCD). D: liquid crystal display), Organic light-emitting display panel (OLED: organic light It is also a light-emitting diode. Furthermore, the display unit uses LEDs (light-emitting diodes). It is also in the form of a diode (light-emitting element).

[0132] The haptic section converts electrical signals into mechanical or electrical stimuli for powder inhalation. Information related to device 1 can be provided to the user tactilely. For example, the haptic part is mo It also includes piezoelectric elements or electrical stimulators.

[0133] The acoustic output unit can provide the user with information related to the powder suction device 1 audibly. For example, The sound output unit can convert electrical signals into sound signals and output them externally.

[0134] The powder suction device 1 converts power from the battery 30 and powers the airflow sensor 14, the powder diffusion unit 15, Power conversion circuit (e.g., DC (direct current) / DC) supplied to the output unit 16 and the control unit 20. It also includes a converter. The powder suction device 1 also uses the DC power of the battery 30. It also includes a DC / AC (alternating current) converter that converts the power source to AC power. That is also the case.

[0135] The input unit receives information entered by the user and transmits the received information to the control unit 20. For example, the input section includes a keypad, a dome switch, and a t Touch pads (contact-type capacitive type, pressure-type resistive type, infrared sensing type, surface ultrasonic conductive type) (Methods include integral tension measurement methods, piezoelectric effect methods, etc.), jog wheel, jog switch, etc. These are possible, but not the only possibilities.

[0136] Furthermore, the powder inhalation device 1 has a USB (universal serial bus) interface, etc. The USB interface further includes a connection interface. It connects to other external devices via a connecting interface such as S to send and receive information, Alternatively, it can charge the battery 30.

[0137] The input section further incorporates a photoplethysmogram sensor (PPG sensor). It is also included in the above. The PPG sensor may be located outside the powder suction device 1.

[0138] When a user takes the powder inhalation device 1 in order to use it, the PPG sensor The device can transmit information related to the user's grip to the control unit 20.

[0139] The control unit 20 receives information related to the user's grip from the PPG sensor and performs powder inhalation. The device 1 can be prepared for operation.

[0140] The control unit 20 includes a memory (not shown) or is communicatively connected to the memory. The memory is hardware that stores various data processed within the powder suction device 1. The memory can store data processed by the control unit 20 and data being processed. Flash memory type, hard disk type Multimedia Card Micro Type, Card Type of memory (for example, SD (Secure Digital) memory or XD (Extreme Digital) memory) (Memory, etc.), RAM (random access memory), SRAM (static random access memory) memory), ROM (read-only memory), EEPROM (electrically erasable program Magnetic memory (PROM), programmable read-only memory. , or including at least one type of recording medium from magnetic disks and optical disks. ru.

[0141] The memory contains the pressure, flow rate and / or flow velocity of the airflow passage of the powder suction device 1, and the suction maintenance time. The values ​​of the physical quantities involved can be preserved.

[0142] The powder suction device also includes a communication unit (not shown). This communication unit is connected to other electronic devices. It also includes at least one component for communication with. For example, the communication unit is Includes a short-range wireless communication unit and a wireless communication unit. But so.

[0143] The short-range communication unit includes a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, Near field communication unit, WLAN (wireless local area) Network (Wi-Fi (wireless fidelity)) communication unit, Zigbee communication unit, Infrared data association (IrDA) communication unit, Wi-Fi Direct (WFD) communication It also includes the UWB (ultra-wideband) communication section, the Ant+ communication section, etc. It is not limited to them.

[0144] The Wireless Communication Department includes the Cellular Network Communication Department, the Internet Communication Department, and the Computer Network Network (e.g., LAN (local area network) or WAN (wide area network)) It may include, but is not limited to, the signal unit. The wireless communication unit includes, Subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) Using r Identity), the powder inhalation device 1 is verified and authenticated within the communication network. It is also possible.

[0145] The battery 30 can supply the power used to operate the powder suction device 1. Ri 30 is equipped with an airflow sensor 14, a powder diffusion unit 15, and an output unit 16 within the powder suction device 1. This allows for the supply of power necessary for the operation of components such as the control unit 20.

[0146] The airflow sensor 14, powder diffusion unit 15, output unit 16, and control unit 20 are powered by the battery 30. It can perform its function when power is supplied to it.

[0147] Battery 30 is both a rechargeable battery and a single-use battery. Battery 30 is also a lithium polymer (LiPoly) battery, but is limited to that. It's not that.

[0148] The powder suction device 1 according to this disclosure converts the power of the battery 30 and supplies it to each component. The power conversion circuit that supplies power, for example, an LDO (low dropout) circuit or a voltage regulator circuit. It also includes roads.

[0149] Figures 7 and 8 show an embodiment of the present disclosure in which the powder inhalation device 1 senses the user's inhalation intention. The system detects physical quantities related to inhalation capacity and performs inhalation assistance actions based on the detected physical quantities. This is a graph to explain the method.

[0150] In the explanation of the graphs shown in Figures 7 and 8, the graphs shown in Figures 1 to 6 are The components of the powder suction device 1 will be described with reference.

[0151] Referring to Figures 7 and 8, the powder inhalation device 1 provides inhalation assistance when the user has a strong inhalation ability. If the operation is short and / or operated at low intensity, and the user's inhalation ability is weak, the inhalation support The auxiliary action can be activated for a longer duration and / or with greater intensity. Regarding this, see below. I will explain in detail later.

[0152] Figures 7 and 8 show two graphs, one above the other. In the two graphs, horizontal The axes all indicate time.

[0153] In Figures 7 and 8, the vertical axis of the graph shown at the top represents the physical inhalation capacity of the user. It indicates the magnitude of the quantity. The physical quantity that indicates the user's suction capacity is a function that takes pressure, flow rate, and flow velocity as variables. (f1 = (pressure, flow rate, flow velocity))

[0154] In Figures 7 and 8, the vertical axis of the graph shown at the bottom represents the intensity of the inhalation assistance action. The intensity of the suction assist operation is a function (f2=(vibration, It also involves impact and airflow.

[0155] The control unit 20 determines the user's inhalation ability and controls the operation of the powder diffusion unit 15 based on that. It is possible. The operation of the powder diffusion unit 15 assists the user inhaling powder, thus providing an "inhalation assistance function". Alternatively, it can be described as an "inhalation assistance action."

[0156] The suction assist operation via the powder diffusion unit 15 is, as described above, vibration, shock and / or airflow. This can be performed via: That is, the suction assist operation is performed via less than one of the following: vibration, shock, or airflow. It can be carried out by including at least one of them.

[0157] When the control unit 20 detects the user's inhalation, it determines the user's inhalation capacity and controls the user's inhalation. The operation of the powder diffusion unit 15 can be controlled by this function.

[0158] The control unit 20 compares a predetermined value with a detected value of a physical quantity indicating the user's inhalation ability. Based on the comparison results, the strength of the operation of the powder diffusion unit 15 is adjusted to correspond to the user's inhalation ability. The degree and / or duration of operation can be controlled.

[0159] When the user uses the powder suction device 1, the pressure, flow rate, and / or the internal air pressure of the airflow passage 13 are controlled. The flow rate is changed. The user's intake volume is affected by pressure, flow rate and / or flow rate. It is also a number. For example, the amount of powder inhaled by a user using the powder inhalation device 1 is the amount inside the airflow passage 13. It is proportional to pressure, flow rate, and / or flow velocity.

[0160] The airflow sensor 14 detects and controls the pressure, flow rate, and / or flow velocity inside the airflow passage 13. Unit 20 measures the physical pressure, flow rate, and / or flow velocity detected by the signal from the airflow sensor 14. If the detected amount is above a pre-set first threshold, it indicates that the user has begun inhaling. It is possible to make a decision.

[0161] When the control unit 20 determines that the user has started inhaling, it receives a signal from the airflow sensor 14. The maximum value of the detected physical quantity can be obtained.

[0162] The control unit 20 controls the powder diffusion unit 15 based on the user's inhalation capacity, using the airflow passage 1 A second criterion for operating the powder diffusion unit 15 is determined based on the maximum value of the physical quantity of the airflow in 3. The value can be determined.

[0163] The second reference value is a physical quantity that serves as a reference for the control unit 20 to activate the powder diffusion unit 15. be.

[0164] Figures 9 and 10 illustrate the control methods of powder suction devices according to various embodiments of this disclosure. This is a flowchart for clarifying the situation.

[0165] In the following, refer to Figures 9 and 10 to understand the control of the powder inhalation device 1 based on the user's inhalation ability. I will explain the method in detail.

[0166] In the explanation of the control method for the powder inhalation device 1 shown in Figures 9 and 10, Figure 1 Alternatively, the components of the powder suction device 1 shown in Figure 6, and the graphs shown in Figures 7 and 8. See and explain.

[0167] Figure 9 shows the control unit 20 of the powder suction device 1 according to one embodiment, which detects from the airflow sensor 14. Based on the changes in the physical quantities (pressure, flow rate and / or flow velocity) of the airflow passage 13, the airflow passage 1 The maximum value of physical quantity 3 is measured, and a second reference value is determined based on the maximum value of the physical quantity in the airflow passage 13. To explain the process of operating the powder diffusion unit 15 based on the second reference value, This is a flowchart.

[0168] Referring to Figure 9, in step S10, the airflow sensor 14 of the powder suction device 1 is detected by the airflow sensor. The physical quantities of airflow pressure, flow rate, and / or velocity in path 13 can be detected.

[0169] In step S11, the control unit 20 receives the physical quantity detected by the signal from the airflow sensor 14. It is possible to determine whether the detected value is equal to or greater than a pre-set first reference value.

[0170] The dimension or unit of the first reference value is determined by the airflow sensor 14. It can be set according to the type of physical quantity (pressure, flow rate, or flow velocity).

[0171] The first reference value is used to determine when the user has started inhaling using the powder inhalation device 1. It can be used as a value. The first reference value is set as a value for sensing the user's inhalation intention. It can be determined. That is, if the detected value of the physical quantity of the airflow passage 13 is measured to be equal to or greater than the first reference value, If this occurs, it can be seen that the user is using the powder inhalation device 1 and attempting to inhale the powder. can.

[0172] For example, referring to the graphs in Figures 7 and 8, when time reaches t1, the airflow sensor 1 The detected physical quantity of the airflow passage 13 detected by 4 becomes greater than or equal to the first reference value, and time At point t1, when the user attempts to begin powder inhalation using the powder inhalation device 1 You can see it.

[0173] In stage S11, the detected value of the physical quantity of the airflow passage 13 is measured to be less than the first reference value. If this occurs, the control unit 20 also uses the signal from the airflow sensor 14 to detect the physical quantities of the airflow passage 13. The listed price can be compared with the first reference value (returning to S10 level).

[0174] In stage S11, it is measured that the detected value of the physical quantity of the airflow passage 13 is equal to or greater than the first reference value. If this occurs, the control unit 20 will recognize that the user has started an "inhalation operation" and will perform the user's "inhalation operation". It is possible to determine whether or not it is the "first inhalation" (S12 stage).

[0175] "Inhalation action" refers to the process where the physical quantity of the airflow path exceeds the first reference value and then approaches its maximum value. This could refer to the user's actions during the period after the physical quantity has been reduced to the first baseline value.

[0176] The term "inhalation action" refers to an action of a user during a period in which the user's intention to inhale is maintained .

[0177] The term "first inhalation" refers to the first action performed by the user for inhalation when the user inhales powder using a powder inhalation device .

[0178] When the user has not used the powder inhalation device 1 for a predetermined time, the "first inhalation" may refer to inhalation during the period from when the detected value of a physical quantity in the airflow path 13 becomes equal to or greater than a first reference value to when the detected value becomes less than the first reference value .

[0179] As another example, after the power supply of the powder inhalation device 1 is turned on, the "first inhalation" may refer to inhalation during the period from when the detected value of the physical quantity in the airflow path 13 becomes equal to or greater than the first reference value to when the detected value becomes less than the first reference value .

[0180] As still another example, after the user holds the powder inhalation device 1 and information related to the user's grip is transmitted from the PPG sensor of the input unit to the control unit 20, the "first inhalation" may refer to inhalation during the period from when the detected value of the physical quantity in the airflow path 13 becomes equal to or greater than the first reference value to when the detected value becomes less than the first reference value .

[0181] In step S13, if it is determined that the user's inhalation action is the first inhalation, the control unit 20 can acquire the maximum value of the physical quantity in the airflow path 13.

[0182] In step S14, the control unit 20 can determine a second reference value based on the maximum value of the physical quantity in the airflow path 13 acquired in step S13.

[0183] For example, the control unit 20 controls the pressure in the airflow path 13 detected by a signal from the airflow sensor 14 A second reference value can be determined so as to be proportional to the maximum value of the physical quantities of flow rate and / or flow velocity.

[0184] The maximum values ​​of the physical quantities of pressure, flow rate, and / or flow velocity in the airflow passage 13 are relative to the user's suction capacity. Therefore, the second reference value can be determined in proportion to the user's inhalation capacity.

[0185] If it is determined in step S12 that the user's inhalation action is not the first inhalation, then step S15 On the floor, the control unit 20 detects the physical airflow passage 13 based on the signal from the airflow sensor 14. The detected amount is either above or below the second reference value determined in the S14 stage. It is possible to determine whether or not that is the case.

[0186] In stage S16, the control unit 20 determines if the detected value of the physical quantity of the airflow passage 13 is equal to or greater than the second reference value. In this case, the powder diffusion unit 15 can be activated.

[0187] Next, the control unit 20 determines the physical properties of the airflow passage 13 detected by the signal from the airflow sensor 14. Whether the detected quantity is equal to or greater than the second reference value determined in the S14 stage is further determined. It is possible to make a judgment (i.e., return to S15 stage).

[0188] In stage S17, the control unit 20 determines if the detected value of the physical quantity of the airflow passage 13 is less than the second reference value. In that case, the operation of the powder diffusion unit 15 may be interrupted.

[0189] The user can repeat the inhalation operation using the powder inhalation device 1. Here, control The unit 20 maximizes the physical quantity of the airflow passage 13 only when the user's inhalation action is the first inhalation. Based on the value, the operation to determine the second reference value can be performed (S15 stage). The control unit 20 is If the user's inhalation action is not the first inhalation (i.e., if the user's inhalation action is the second inhalation, (or in the case of subsequent inhalation), based on the second reference value determined in S14, powder diffusion The operation of part 15 can be determined.

[0190] The user can repeat the inhalation action after the first inhalation, and the control unit 20 will control the user's... Of the inhalation actions repeated after the initial breath, the detected physical values ​​of the airflow passage 13 are as follows: 2nd criterion The powder diffusion unit 15 is activated only while the value is maintained above a certain level, thereby enabling the powder loader to function. The suction assist operation involves diffusing the powdery medium transmitted to the suction section 12 into the airflow passage 13. It is possible.

[0191] Referring to the graphs in Figures 7 and 8, the control unit 20, at t1, detects the user's inhalation action. It can sense the user's inhalation capacity during the first inhalation and determine a second reference value.

[0192] When the "first inhalation" is performed, the powder inhalation device does not activate, and the user has the ability to inhale. The powder can be inhaled using a device. Alternatively, in other embodiments, the "first inhalation" may be omitted. When this occurs, the powder suction device operates with minimal force to prevent the user from inhaling powder. It can be helpful.

[0193] After the "first inhalation" is completed, the user proceeds to the "second inhalation," in which they perform an additional inhalation action. It is possible. While the "second inhalation" is being performed, the control unit 20 will pass the time t2 when the "second inhalation" began. From the moment of t3 until t3, the powder diffusion unit 15 is activated to perform the suction assist operation. It is possible to accomplish it.

[0194] For convenience, the graphs in Figures 7 and 8 show that in the "second inhalation," the inhalation assistance action is performed once (t is illustrated as being performed from t2 to t3; however, the inhalation assistance operation based on the second reference value can be repeatedly performed in accordance with a user's inhalation motion.

[0195] The second reference value may be determined to be proportional to the pressure, flow rate and / or flow velocity inside the user's airflow path 13. Accordingly, when the user's inhalation pressure, flow rate and / or flow velocity is relatively weak, the powder diffusion unit 15 can be actuated at a relatively low inhalation pressure, flow rate and / or flow velocity compared to when the user's inhalation pressure, flow rate and / or flow velocity is strong.

[0196] Referring to FIG. 7 and FIG. 8, the maximum value of the physical quantity illustrated in FIG. 7 is larger than the maximum value of the user's physical quantity illustrated in FIG. 8. The maximum value of the physical quantity may be proportional to the user's inhalation ability.

[0197] For example, in the case of a user with strong inhalation ability, the second reference value is set to a high value; for a user with weak inhalation ability, the second reference value may be set to a low value. Therefore, for a user with weak inhalation ability, the powder diffusion unit 15 starts operating based on the second reference value set to a low value, so the powder diffusion unit 15 can assist the powder inhalation motion of a user with weak inhalation ability for a longer period of time.

[0198] Referring to FIG. 7 and FIG. 8, the inhalation assistance operation (that is, the operation of the powder diffusion unit 15) can be performed during the period from t2 to t3. As shown in FIG. 8, when the maximum value of the physical quantity is relatively small, the time interval from t2 to t3 is set to be longer than when the maximum value of the physical quantity is relatively large as shown in FIG. 7. That is, when the maximum value of the physical quantity is small, the inhalation assistance operation can be performed for a longer time.

[0199] The maximum value of the physical quantity can be proportional to the user's inhalation capacity, as shown in Figure 8. If the user's inhalation ability is weak, as shown in Figure 7, the inhalation assistance operation time (t2) is longer than when the user's inhalation ability is strong. The t3 can be maintained for a long time.

[0200] In other words, the powder diffusion unit 15 operates more passively the stronger the user's inhalation ability, and the user The weaker the inhalation capacity, the more actively it can be activated.

[0201] The statement that the powder diffusion unit 15 "operates passively" means that vibrations generated by the powder diffusion unit 15 are not affected. Either the intensity of the movement is set to be weak, or the timing at which the powder diffusion unit 15 starts operating is set to be delayed. It could mean that it will be done.

[0202] The powder diffusion unit 15 "actively operates" refers to the vibrations generated by the powder diffusion unit 15. Either the intensity of the movement is set to be strong, or the point at which the powder diffusion unit 15 starts operating is set to be earlier. It could mean that it will be done.

[0203] In this manner, a strong inhalation assist action is performed for users with weak inhalation ability. For users with strong inhalation capacity, a weaker inhalation assistance action may be performed. As a result, the powder inhalation device 1 Depending on the user's inhalation ability, a sufficient amount of powder can be supplied to the user of the powder inhalation device 1.

[0204] The powder diffusion unit 15 operates when the user performs an inhalation operation using the powder inhalation device 1. Therefore, the powder can be supplied to the user according to the user's inhalation timing.

[0205] If the detected value of the physical quantity in the airflow passage 13 is equal to or greater than the first reference value, the user opens the suction operation. It can be determined that it has begun.

[0206] Even if the detected value of the physical quantity in the airflow passage 13 is greater than or equal to the first reference value, the powder diffusion section 15 If it does not operate and the value exceeds the second reference value, the powder diffusion unit 15 will activate, It enables reliable powder supply in line with the inhalation capacity of the device.

[0207] Furthermore, if the user's inhalation ability is above a certain level, for example, if the user's inhalation ability is that of an adult If the average value is exceeded and no inhalation assistance is required, then it is not necessary to perform the inhalation assistance. Therefore, the control unit 20 receives the physical quantity of the airflow passage 13 sensed by the airflow sensor 14. If the detected value is above a certain level, the powder diffusion unit 15 will not be operated.

[0208] Figure 10 shows the control unit 20 of a powder suction device 1 according to one embodiment detecting from the airflow sensor 14 Based on the changes in the physical quantities (pressure, flow rate, and / or flow velocity) of the airflow passage 13, intake maintenance is performed. The time is measured, and based on the inhalation maintenance time, a second reference value is determined, and based on the second reference value, the powder This is a flowchart illustrating the process of operating the diffusion unit 15.

[0209] In the following, to avoid redundant explanations, the powder suction device 1 described with reference to Figure 9 is described below. Explanations that overlap with explanations regarding control methods may be omitted.

[0210] Referring to Figure 10, in step S20, the airflow sensor 14 of the powder suction device 1 is detected by the airflow sensor. The physical quantities of airflow pressure, flow rate, and / or velocity in the passage 13 can be detected.

[0211] In step S21, the control unit 20 receives the physical quantity detected by the signal from the airflow sensor 14. It is possible to determine whether the detected value is equal to or greater than a pre-set first reference value.

[0212] In stage S21, the detected value of the physical quantity of the airflow passage 13 is measured to be less than the first reference value. If so, the control unit 20 further controls the airflow path 13 detected by the signal from the airflow sensor 14. The detected value of the physical quantity can be compared with the first reference value (return to S20 stage).

[0213] If, at stage S21, the detected value of the physical quantity of the airflow passage 13 is measured to be equal to or greater than the first reference value, The control unit 20, upon seeing that the user has started an "inhalation operation", determines that the user's "inhalation operation" is "first It is possible to determine whether or not it is an "inhalation" (S22 stage).

[0214] In stage S22, if it is determined that the user's "inhalation action" is a "first inhalation", then the powder The control unit 20 of the end-inhalation device 1 controls the airflow passage 13 detected by the airflow sensor 14. The time during which the detected value of the physical quantity is maintained above the first reference value can be measured (S23 stage).

[0215] At this time, in the "first inhalation," the detected value of the physical quantity in the airflow passage 13 exceeds the first reference value. The duration of inhalation can be called the inhalation maintenance time.

[0216] In other words, in the "first inhalation," the detected value of the physical quantity of the airflow passage 13 is initially the first reference value. After reaching the maximum value, the period during which the detected value is reduced to the first baseline value is called the inhalation maintenance time. It can be called that.

[0217] The stronger the user's inhalation ability, the longer the inhalation maintenance time can be maintained. The time may be proportional to the inhalation capacity.

[0218] As mentioned above, the first reference value is a value used to sense the user's inhalation intention. Here, The inhalation maintenance time is the time during which the user's intention to inhale powder using the powder inhalation device 1 is maintained. be.

[0219] From another perspective, the inhalation maintenance time can be seen as the time during which the inhalation action is maintained. Cut.

[0220] In step S24, the control unit 20 of the powder suction device 1 according to one embodiment, in step S23 Based on the inhalation maintenance time measured in the airflow passage 13, a second reference value can be determined.

[0221] For example, the control unit 20 may determine a second reference value in proportion to the inhalation maintenance time.

[0222] Since the duration of inhalation in the airflow passage 13 is proportional to the user's inhalation capacity, the second reference value is... It can be determined in proportion to the inhalation capacity of the device.

[0223] For example, in the case of a user with strong inhalation ability, the second reference value will be set to a high value, while for a user with weak inhalation ability, the second reference value will be set to a high value. For users, the second reference value is set to a lower value. Therefore, for users with weak inhalation ability... Based on the second reference value, which is set to a low value, the powder diffusion unit 15 starts operating, so the powder The diffusion unit 15 can assist the powder inhalation operation of users with weak inhalation ability for an even longer period of time.

[0224] In stage S22, it is determined that the user's inhalation action is not the user's "first inhalation". In step S25, the control unit 20 controls the airflow detected by the signal from the airflow sensor 14. Is the detected value of the physical quantity in passage 13 equal to or greater than the second reference value determined in stage S24? It is possible to judge what is being said.

[0225] In stage S26, the control unit 20 determines if the detected value of the physical quantity of the airflow passage 13 is equal to or greater than the second reference value. In this case, the powder diffusion unit 15 can be activated.

[0226] Next, the control unit 20 determines the physical properties of the airflow passage 13 detected by the signal from the airflow sensor 14. Whether the detected quantity is equal to or greater than the second criterion value determined in the S24 stage. Further judgment is possible (i.e., returning to stage S25).

[0227] In step S27, the control unit 20 determines that the detected value of the physical quantity of the airflow passage 13 is less than the second reference value. In that case, the operation of the powder diffusion unit 15 may be interrupted.

[0228] The user can repeatedly perform the inhalation operation using the powder inhalation device 1. Here, the control unit 20, Only when the user's inhalation action is "first inhalation", based on the maximum value of the physical quantity in the airflow passage 13 Then, the operation to determine the second reference value is performed (S25 stage). The control unit 20 determines the user's intake If the inhalation action is not the "first inhalation" (i.e., if the user's inhalation action is the "second inhalation"), If the subsequent inhalation is performed, then, based on the second reference value determined in stage S24, The operation of the powder diffusion unit 15 can be determined.

[0229] After the first inhalation, the user can repeat the inhalation action, and the control unit 20 will respond to the user's first inhalation. After inhalation, during a single inhalation, the detected physical values ​​of the airflow passage 13 remain above the second reference value. Only when this condition is met is the powder diffusion unit 15 activated, thereby allowing the powder to be loaded into the powder loading unit 12. It can perform a powder suction assist operation that diffuses the transmitted powdery medium into the airflow passage 13.

[0230] In this manner, for users with weak inhalation ability, a strong inhalation assistance action is performed, and inhalation is facilitated. For users with strong inhalation ability, a weaker inhalation assistance action can be performed. As a result, the user of the powder inhalation device 1 The suction capacity of the device ensures that a sufficient amount of powder is supplied to the user of the powder suction device 1.

[0231] As described above, when the powder diffusion unit 15 is activated, the powder suction device 1 according to this disclosure Furthermore, even if the user's inhalation ability is insufficient, sufficient powder can be supplied to the user. The disclosed powder suction device 1 can supply the user with sufficient powder depending on the user's suction ability. .

[0232] In the above description, the pressure, flow rate, and flow velocity of the airflow passage 13 were explained with reference to Figures 9 and 10. Alternatively, the method for controlling the powder diffusion unit 15 by the inhalation maintenance time may be performed independently or in combination. It can also be done.

[0233] The measurement parameters for the user's inhalation ability (pressure, flow rate, flow velocity, or inhalation time) and the strength of the inhalation assistance action. The dimensions or units of a degree standard (pressure, flow rate, or velocity) are relative to each other. They can be different.

[0234] For example, the control unit receives the detected value of the pressure in the airflow passage 13 detected by the airflow sensor 14. After measuring the user's inhalation capacity based on the maximum value, powder diffusion is performed based on the flow velocity of the airflow passage 13. The second reference value, which is the operating standard for section 15, can be determined.

[0235] As another example, the control unit 20 is proportional to the inhalation maintenance time of the airflow passage 13 and the user's inhalation capacity After measuring the pressure in the airflow passage 13, a second reference value for the airflow passage 13 can be determined.

[0236] The measurement target for inhalation ability is 1 or higher, and the standard for the intensity of the inhalation assistance action is also 1 or higher. In other words, the inhalation capacity is a function of multiple variables, and the intensity of the inhalation assistance action is also a function of multiple variables. It is also a function of the variable.

[0237] For example, the control unit 20 considers both the maximum pressure and the maximum flow velocity in the airflow passage 13. After considering the user's suction capacity and determining the reference pressure and reference flow rate, the reference pressure and reference When the flow rate reaches the specified level, the powder diffusion unit 15 can be activated.

[0238] As another example, the control unit 20 measures the maximum pressure and suction maintenance time of the airflow passage 13. Afterward, the reference pressure can be determined based on that.

[0239] The criteria for measuring inhalation capacity, and / or the criteria for the intensity of the inhalation assistance action thereafter, vary. They can be transformed, combined, and selected depending on the method.

[0240] Figure 11 shows a method for supplying sufficient powder by the user's inhalation ability, according to one embodiment. This is a graph used to explain the concept.

[0241] Figure 11 shows the second reference value (pressure, After the flow rate and / or flow velocity are determined, the suction assist operation is performed based on the second reference value. This is a graph illustrating a specific embodiment.

[0242] Figure 11 shows three graphs: upper, middle, and lower. The horizontal axis in all cases represents time.

[0243] In Figure 11, the vertical axis of the graph shown at the top represents the magnitude of the physical quantity indicating the user's inhalation capacity. This indicates the size. The physical quantity that indicates the user's suction capacity is a function (f1) with pressure, flow rate, and flow velocity as variables. It is also equal to (pressure, flow rate, flow velocity).

[0244] In Figure 11, the vertical axis of the graph shown in the middle represents the intensity of the inhalation assistance action. The intensity of the assistive action is a function (f2=(vibration, shock, It also functions as a fan.

[0245] In Figure 11, the vertical axis of the graph shown at the bottom represents the amount of powder supplied. This refers to the amount of powder actually supplied to the user through the inhalation assistance function.

[0246] As described above, the suction assist operation via the powder diffusion unit 15 is performed by the vibration device 15a and the impact device 1 This is performed by either 5b or blower 15c, or a combination thereof. Shut up.

[0247] The amount of powder diffused by the powder diffusion unit 15 is controlled by adjusting the frequency or amplitude of vibration, or by impact Adjust the frequency and intensity of the shots, or the strength of the airflow, or the opening area of ​​the opening. It can be controlled by [something].

[0248] Referring to Figure 11, the suction volume (pressure, flow rate, and / or) of the user using the powder suction device 1 can be seen. The flow velocity (or current velocity) increases initially and then decreases after reaching its maximum value.

[0249] When the control unit 20 operates the powder diffusion unit 15 at the same intensity continuously, powder suction occurs. Auxiliary movements can only be maintained by the same intensity.

[0250] In that case, since the amount of powder the user inhales increases or decreases over time, the amount of powder supplied to the user is It will no longer be fixed.

[0251] This allows the operation of the powder diffusion unit 15 to be controlled, taking into account the increase or decrease in the user's inhalation volume over time. If so, it may be possible to provide users with a sufficient amount of powder more effectively.

[0252] Referring to Figure 11, the control unit 20 takes into account the increase or decrease in the user's inhalation volume over time and expands the powder. The dispersion part 15 can be controlled.

[0253] Specifically, the control unit 20 controls the physical quantity of the airflow passage 13 detected by the airflow sensor 14. From the moment the detected value exceeds the second reference value until the detected value reaches the maximum value, the powder diffusion section The intensity of operation 15 can be controlled to gradually decrease. Alternatively, the control unit 20 can control the airflow From the point when the detected value of the physical quantity in passage 13 reaches its maximum value, until it is further reduced to the second reference value. Therefore, the intensity of the operation of the powder diffusion unit 15 can be controlled to gradually increase.

[0254] In another respect, the control unit 20 controls the intensity of the operation of the powder diffusion unit 15 to the airflow sensor 14. Therefore, it is possible to control the system so as to be inversely proportional to the detected physical quantity of the detected airflow passage 13.

[0255] With this method, the amount of air inhaled by the user increases or decreases over time, but the amount of air inhaled by the user is weak. If the user's inhalation volume is high, a strong inhalation assist action will be performed; if the user's inhalation volume is high, a weak inhalation assist action will be performed. This process ensures that the amount of powder supplied to the user remains constant throughout a single inhalation operation. (See the lower graph in Figure 11).

[0256] Therefore, the user of the powder inhalation device 1 should, in accordance with the timing of the inhalation operation, perform sufficient inhalation with each inhalation operation. A certain amount of powder can be supplied.

[0257] The above-described embodiments are merely illustrative examples and do not apply to the usual practices in the art. Anyone with the necessary knowledge can derive various modifications and equivalent other embodiments from them. You will understand that this is the case. Therefore, the true scope of protection of the invention is the attached patent application. This is determined by the scope of the claim, and is equivalent to the scope of the content described in the patent claim. All differences within the box are to be interpreted as being included within the scope of protection defined by the claims. It must be done.

Claims

1. A storage tank in which a powdered medium is stored, A powder loading section that receives the medium from the storage tank, The airflow is a mixture of the medium transmitted to the powder loading section and air. The passageway and An airflow sensor that detects changes in the airflow in the aforementioned airflow passage, The powder spreading process involves diffusing the medium transferred to the powder loading section toward the airflow passage. Dispersed parts, A signal is received from the airflow sensor, and based on the change in the airflow in the airflow passage, the powder diffusion is performed. A powder suction device, including a control unit configured to operate a part.

2. The airflow sensor measures at least one of the pressure, flow rate, and flow velocity of the airflow in the airflow passage. Detect physical quantities, The control unit, when the detected value of the physical quantity detected by the airflow sensor is equal to or greater than a first reference value, In some cases, the maximum value of the physical quantity of the airflow in the airflow passage is obtained based on the signal from the airflow sensor. The powder inhalation device according to claim 1.

3. The control unit, Based on the maximum value of the physical quantity of the airflow in the aforementioned airflow passage, the number of steps required to operate the powder diffusion unit 2. Determine the reference values, If the detected value of the airflow detected by the signal from the airflow sensor is equal to or greater than the second reference value, In addition, the powder diffusion unit is operated, and the detected value of the airflow detected by the signal from the airflow sensor is... If the value is less than the second reference value, the operation of the powder diffusion unit is interrupted, as described in claim 2. A powder inhalation device.

4. The airflow sensor measures at least one of the following: pressure, flow rate, and flow velocity of the airflow in the airflow passage. Detect one physical quantity, The control unit determines that the detected value of the physical quantity detected by the signal from the airflow sensor is a first reference. The powder inhalation device according to claim 1, which measures the inhalation maintenance time that is maintained above a certain value.

5. The control unit, Based on the aforementioned suction maintenance time, a second reference value is determined for operating the powder diffusion unit. If the detected value of the airflow detected by the signal from the airflow sensor is equal to or greater than the second reference value, In addition, the powder diffusion unit is operated, and if the detected value is less than the second reference value, the powder The powder suction device according to claim 4, which interrupts the operation of the end-diffusion section.

6. The powder loading section includes a diaphragm that vibrates the medium, The powder diffusion unit vibrates the diaphragm, and the medium transmitted to the powder loading unit The powder suction device according to claim 1, further comprising a vibrating device for diffusing the powder toward the airflow passage.

7. The powder diffusion unit applies physical impact to the powder loading unit, and the powder loading unit Claim 1 includes an impact device that diffuses the medium transmitted to the ng section toward the airflow passage. The powder inhalation device described above.

8. The powder diffusion section generates airflow, and the medium transmitted to the powder loading section The powder suction device according to claim 1, further comprising a blower for diffusing the powder toward the airflow passage.

9. In a control method for a powder suction device, A powder loading section that transmits a powdered medium, the powder suction device and the outside, and the fluid An inhalation capacity measurement step that detects changes in airflow in a connected airflow passage, Based on the change in airflow in the aforementioned airflow passage, the powder diffusion unit is operated, and the powder loader The process includes a powder suction assist step that diffuses the medium transferred to the suction section toward the airflow passage. Hmm, a control method for a powder inhalation device.

10. The inhalation capacity measurement step is, The system detects at least one physical quantity among the pressure, flow rate, and velocity of the airflow in the aforementioned airflow passage. Furthermore, if the detected value of the detected physical quantity is greater than or equal to the first reference value, the airflow in the airflow passage A control method for a powder inhalation device according to claim 9, which obtains the maximum value of a physical quantity.

11. The inhalation capacity measurement step is based on the maximum value of the physical quantity of the airflow in the airflow passage, and the second unit Determine the benchmark value, In the aforementioned powder suction assistance step, the detected value of the physical quantity of airflow in the airflow passage is the second criterion. If the value is greater than or equal to the detected value, the powder diffusion unit is activated, and the detected value of the physical quantity in the airflow passage is... If the value is less than the second reference value, the operation of the powder diffusion unit is interrupted, as described in claim 10. A method for controlling a powder inhalation device.

12. The inhalation capacity measurement step is, The system detects at least one physical quantity among the pressure, flow rate, and velocity of the airflow in the aforementioned airflow passage. The system then measures the inhalation maintenance time during which the detected physical quantity remains above the first reference value. A method for controlling a powder inhalation device according to claim 9.

13. The aforementioned inhalation capacity measurement step is performed in order to operate the powder diffusion unit based on the inhalation maintenance time. The second reference value was determined, In the aforementioned powder suction assistance step, the detected value of the physical quantity of airflow in the airflow passage is the second criterion. If the value is greater than or equal to the value, the powder diffusion unit is activated, and if the detected value is less than the second reference value In this case, the operation of the powder diffusion unit is interrupted, control method for powder suction device according to claim 12. 。

Images