Inhalation Counter

Abstract

A suction counter (350, 450, 550) for a suction system (100) is provided. The suction system comprises a fluid flow path (322), the suction counter comprises an escape wheel (352, 452), a biasing means (354, 454) for incrementing the escape wheel, a conversion mechanism configured to perform a first movement in response to a momentary increase in fluid flow rate through the fluid flow path, in use, and an anchor (356, 456). The anchor is coupled to the conversion mechanism and configured to interact with the escape wheel to enable the biasing means to increment the escape wheel in response to a first movement of the conversion mechanism. A suction system comprising a holder (300) and a suction counter is also provided.

Description

Technical Field

[0001] The present disclosure relates to an inhalation counter for an inhalation system. The present disclosure also relates to a holder comprising an inhalation counter and an inhalation system comprising an inhalation counter.

Background Art

[0002] In some inhalation systems, it may be beneficial for a user to be able to count the number of inhalations made with the system. For example, some dry powder inhalation systems may comprise a holder and an inhaler article. The inhaler article may include a capsule containing dry powder. In such dry powder inhalation systems, the inhaler article may be engaged with the holder and the capsule may then be pierced. The user may then inhale with the holder and pass air through the system. Each airflow from each inhalation may convey a portion of the dry powder from the capsule into the user's lungs. However, after a number of inhalations, subsequent inhalations may not extract a significant amount of the remaining powder, if any, from the capsule. At this point, the capsule may be considered depleted. Thus, by being able to count the number of inhalations in the system, it may be possible to indicate when the user is likely to have used up the capsule.

[0003] Some inhalation systems use electronic components to address this need for an inhalation counter. However, such electronic components may need to operate a complex user interface. In addition, using electronic components may increase the cost and complexity of manufacturing these systems. It is an object of the present invention to address one or more of these problems.

Summary of the Invention

[0004] A suction counter may be provided according to this disclosure. The suction counter may be suitable for a suction system. The suction system may include a fluid passage. The suction counter may include an escape wheel. The suction counter may include a biasing means. The biasing means may be for incrementing the escape wheel. The suction counter may include a conversion mechanism. In use, the conversion mechanism may be configured to perform a first action in response to a temporary increase in the fluid flow rate through the fluid passage. The suction counter may include an anchor. The anchor may be coupled to the conversion mechanism. The anchor may be configured to interact with the escape wheel, for example, so that the biasing means can increment the escape wheel in response to a first action of the conversion mechanism.

[0005] Accordingly, according to a first aspect of the present disclosure, an intake counter suitable for an intake system may be provided. The intake system comprises a fluid passage. The intake counter comprises an escape wheel, a biasing means for incrementing the escape wheel, a conversion mechanism configured to perform a first action in response to a temporary increase in the fluid flow rate through the fluid passage when in use, and an anchor. The anchor is coupled to the conversion mechanism and is configured to interact with the escape wheel such that the biasing means enables the escape wheel to be incremented in response to the first action of the conversion mechanism.

[0006] Advantageously, the inhalation counter according to the first embodiment can automatically count inhalations. That is, the inhalation counter can count inhalations without any user input other than inhalation in the inhalation system. This can simplify the use of the inhalation counter.

[0007] Advantageously, inhalation counters may be equipped with an escape wheel. The use of an escape wheel can ensure that the inhalation counter counts only a single inhalation, regardless of whether the inhalation is deep or shallow, or long or short. Thus, an escape wheel can enable the inhalation counter to reliably count the number of inhalations in an inhalation system, regardless of the nature of the inhalation.

[0008] The suction counter may include a fluid passage. The suction counter may be coupled to the fluid passage, or may be configured to be coupled to the fluid passage when in use. The suction counter may be configured to be coupled to the fluid passage, for example, reversibly. Advantageously, this may allow the suction counter to be replaced or used in a different suction system.

[0009] Intake in an intake system can result in a temporary increase in the fluid flow rate through the fluid passage. This temporary increase in fluid flow rate may include a first portion in which the fluid flow rate increases. This temporary increase in fluid flow rate may include a second portion in which the fluid flow rate decreases. The second portion may follow the first portion.

[0010] Normal inhalation in an inhalation system may cause the fluid flow rate through the fluid channel to increase from zero to a maximum flow rate, and then decrease from the maximum flow rate to zero. The fluid flow rate may increase monotonically from zero to a maximum flow rate. The fluid flow rate may decrease monotonically from the maximum flow rate to zero. Alternatively, at least one of the increase and decrease in the fluid flow rate may be non-monotonically. As used herein, any reference to inhalation refers to normal inhalation of this nature, and any reference to fluid or airflow through a fluid channel refers to normal fluid or airflow through a fluid channel in response to normal inhalation of this nature.

[0011] The conversion mechanism may be configured to initiate a first action in response to a first portion of a transient increase in fluid flow rate. The conversion mechanism may initiate the first action using the energy of the fluid flow. When in use, if the fluid flow rate through the fluid channel temporarily increases, the conversion mechanism may perform the first action. When in use, the conversion mechanism may initiate the first action due to a first portion of a transient increase in fluid flow rate through the fluid channel. When in use, for example, after the conversion mechanism initiates the first action due to a first portion of a transient increase in fluid flow rate through the fluid channel, the conversion mechanism may complete the first action due to a second portion of a transient increase in fluid flow rate through the fluid channel. Advantageously, this may avoid the need for an energy source to initiate the first action.

[0012] The conversion mechanism may be configured to complete the first operation in response to a second portion of a transient increase in fluid flow rate. Advantageously, this may enable the conversion mechanism to reliably initiate and complete the first operation in response to a transient increase in fluid flow rate, and therefore in response to normal suction.

[0013] The suction counter may be a fluid flow-activated suction counter, or may be called a fluid flow-activated suction counter.

[0014] If the increase in fluid flow rate is not monotonic, the conversion mechanism may be configured to complete its first operation only in response to the second portion of the transient increase in fluid flow rate, rather than in response to small fluctuations in flow rate during the transient increase in fluid flow rate. As will be described in more detail below, this can be achieved by providing a resistive component that provides sufficient resistance to prevent the return motion of the actuator that occurs in response to very small transient drops in fluid flow rate during the transient increase in fluid flow rate.

[0015] The conversion mechanism may include an actuator. The first operation may include the motion of the actuator. During use, the fluid flow, for example, the fluid flow through the fluid channel during a temporary increase in fluid flow rate, may act on the components of the conversion mechanism, for example, the actuator of the conversion mechanism, or on components coupled to the actuator of the conversion mechanism. During use, the fluid flow, for example, the fluid flow through the fluid channel during a temporary increase in fluid flow rate, may act on the components of the conversion mechanism, for example, the actuator of the conversion mechanism, or on components coupled to the actuator of the conversion mechanism, causing the conversion mechanism to perform the first operation.

[0016] The first action may include the starting motion of the actuator from a first position to a second position. The starting motion of the actuator may occur during or in response to a first portion of a transient increase in fluid flow rate. The first action may include the returning motion of the actuator from the second position to the first position. The returning motion of the actuator may occur during or in response to a second portion of a transient increase in fluid flow rate.

[0017] The conversion mechanism may be configured to resist the actuator's initial motion. Advantageously, this may reduce the likelihood of the suction counter falsely counting suctions in response to very small transient increases in fluid flow rate. Additionally, the actuator may not resist its initial motion to the extent that a return motion occurs in response to a very small transient decrease in fluid flow rate.

[0018] The conversion mechanism may include a resistive component. The resistive component may be configured to resist the starting motion of the actuator. The resistive component may include one or more springs. For example, the resistive component may include one or more of the following: a helical spring, a leaf spring, a torsion spring, a spiral spring, and a disc spring.

[0019] The actuator may include one or more of a piston, bellows, and diaphragms. Advantageously, such actuators are small in size and mass, making them suitable for use in intake systems, and they may be easy to manufacture.

[0020] The actuator may include a flap. At least a portion of the flap may be located within the fluid channel, or may be positioned within the fluid channel during use. During use, the flow rate through the fluid channel may come into contact with the flap. This contact may apply a force to the flap to move it, for example, by one or more of the following: rotation, translation, and bending. Advantageously, this may provide a simple yet reliable conversion mechanism.

[0021] The conversion mechanism may include a rotatable component. The first operation may include the rotation of the rotatable component. For example, during use, the rotatable component may be configured to rotate in a first direction in response to a first portion of a temporary increase in fluid flow rate. The rotatable component may be configured to rotate in a first direction in response to a fluid flow rate in a first direction, for example, when a user inhales with the inhaler article. The conversion mechanism may prevent the rotatable component from rotating in a second direction opposite to the first direction. The fluid may flow in a second direction opposite to the first direction if the user attempts to blow out rather than inhale from the inhaler system. By preventing the rotatable component from rotating in a second direction, the inhalation counter may be prevented from being accidentally reset. This may also, advantageously, prevent dry powder from the inhaler article from flowing in the wrong direction through the inhaler system.

[0022] For example, the conversion mechanism may include one or more of a latch and a freewheel clutch. At least one of the ratchet and the freewheel clutch may make it possible to prevent the rotatable component from moving in a second direction while it rotates in a first direction. The rotatable component may include a turbine. If the rotatable component includes a turbine, the conversion mechanism may further include means for converting the rotational motion of the turbine into starting motion and returning motion.

[0023] For example, the conversion mechanism may include one or more of the following: a cam and drive, a crank, and a screw thread mechanism, for converting the rotational motion of the turbine into starting and returning motions.

[0024] A rotatable component may be configured to rotate in a second direction different from the first direction, for example, the opposite direction to the first direction, in response to a second portion of a transient increase in fluid flow rate. The rotatable component may include a flap.

[0025] The conversion mechanism may include a flexible component, and the first operation may include bending of the flexible component. For example, in use, the flexible component may be configured to bend in a first direction in response to a first portion of a temporary increase in fluid flow rate. Also, the flexible component may be configured to bend in a second direction different from the first direction, for example, opposite to the first direction, in response to a second portion of the temporary increase in fluid flow rate. The flexible component may include a flap. The flexible component may include a membrane. Advantageously, the use of the membrane can result in a low-friction conversion mechanism. Thereby, the conversion mechanism may be enabled to perform the first operation in response to, for example, a small temporary increase in fluid flow rate due to a shallow inhalation.

[0026] The conversion mechanism may include a Venturi tube or a nozzle. The conversion mechanism may be configured to initiate the first operation in response to one or both of an increase in fluid flow rate through the Venturi tube or nozzle and a decrease in pressure within the Venturi tube or nozzle. Advantageously, the use of the Venturi tube or nozzle can result in a greater pressure difference or fluid flow rate difference than would be possible otherwise. Thereby, the conversion mechanism may be enabled to perform the first operation in response to, for example, a small temporary increase in fluid flow rate due to a shallow inhalation.

[0027] The idler gear may include a plurality of teeth. The teeth of the idler gear may extend radially outward. Advantageously, such teeth can provide a reliable and repeatable interaction between the anchor and the idler gear. Thereby, the biasing means may be enabled to reliably increment the idler gear and count a single inhalation in response to the first operation of the conversion mechanism.

[0028] The anchor may interact with the teeth of the idler gear in use. Thereby, the biasing means may be enabled to increment the idler gear in response to the first operation of the conversion mechanism.

[0029] The anchor may include a first fixing prong. The anchor may also include a second fixing prong. One or both of the first fixing prong and the second fixing prong may interact with the teeth of the gang gear during use. Thereby, the biasing means may be enabled to increment the gang gear in response to the first operation of the conversion mechanism. The anchor may include a pallet fork.

[0030] During use, before a temporary increase in the fluid flow rate, the first fixing prong may engage with the first tooth of the gang gear. After a temporary increase in the fluid flow rate, the first fixing prong may engage with the second tooth of the gang gear. The second tooth of the gang gear may be adjacent to the first tooth of the gang gear.

[0031] During use, during a temporary increase in the fluid flow rate, the second fixing ring prong may engage with the third tooth of the gang gear.

[0032] During use, due to the starting movement of the actuator, the first fixing prong may be disengaged from the gang gear. During use, due to the starting movement of the actuator, for example, after the first fixing prong is disengaged from the first tooth of the gang gear, the second fixing prong may engage with the third tooth of the gang gear.

[0033] During use, due to the return movement of the actuator, the second fixing prong may be disengaged from the third tooth of the gang gear. During use, due to the return movement of the actuator, for example, after the second fixing prong is disengaged from the third tooth of the gang gear, the first fixing prong may engage with the second tooth of the gang gear.

[0034] Advantageously, these interactions between the first and second fixing prongs of the anchor and the first, second, and third teeth of the gang gear provide a simple yet reliable method that enables the biasing means to increment the gang gear in response to the first operation of the conversion mechanism and count a single inhalation.

[0035] The biasing means may include one or more springs. For example, the biasing means may include any one or more of a helical spring, leaf spring, torsion spring, spiral spring, and disc spring. The biasing means may include a stress-applying material, such as a compressed or tensile material. Advantageously, such biasing means are reliable and may not require a power source.

[0036] The inhalation counter may include a display means for showing the user information regarding the inhalation count of the inhalation counter. Advantageously, this may allow the user to determine the information regarding the inhalation count of the inhalation counter.

[0037] Information regarding inhalation counts may include the inhalation count itself.

[0038] For example, if information regarding the inhalation count includes the inhalation count, the inhalation count may start at zero. The inhalation count may increase by 1 with each inhalation in the inhalation system. An increase in the inhalation count to a certain number may indicate that the consumable in the inhalation system is likely to be completely consumed. For example, if a particular consumable typically requires 12 inhalations to be completely consumed, an inhalation count reaching 12 may indicate that the consumable is likely to be completely consumed.

[0039] Information regarding inhalation counts may include information for estimating inhalation counts.

[0040] For example, information regarding the inhalation count may include information for estimating the inhalation count in the form of a progress bar. The progress bar may initially show zero progress. Thus, zero progress may inform the user that zero inhalations have been made so far. The progress bar may show some progress along the progress bar in response to one or more inhalations in the inhalation system. Thus, if the display means is configured for use with a particular consumable that typically requires 12 inhalations to be completely consumed, and the progress bar shows 50 percent progress, this may allow the user to estimate that 6 inhalations have been made. After a predetermined number of inhalations, the progress bar may show 100 percent progress. Thus, for the aforementioned consumable, this may allow the user to estimate that 12 or more inhalations have been made. This may indicate that the consumable is likely to be completely consumed.

[0041] Information regarding inhalation counts may include an estimate of the number of remaining inhalations before the inhalation system consumables are completely consumed.

[0042] For example, if the information regarding the inhalation count includes an estimate of the number of remaining inhalations until the inhalation system's consumables are completely consumed, the estimate may start at a number N. The starting number N may be adjustable, for example, by the user. A user who takes deeper and longer inhalations may prefer to start with a smaller starting number N than a user who takes shallower and shorter inhalations, because fewer and longer inhalations may be needed to completely consume the inhalation system's consumables. For each inhalation in the inhalation system, the number N may decrease by 1. A second number M, for example, a decrease in N to zero, may indicate that the consumables have been completely consumed.

[0043] Information regarding inhalation counts may include information to estimate the number of remaining inhalations before the inhalation system consumables are completely consumed.

[0044] For example, information regarding the inhalation count may include information in the form of a progress bar to estimate the number of remaining inhalations until the consumables in the inhalation system are completely consumed. The progress bar may initially show zero consumption of the consumable. Thus, the progress bar may allow the user to estimate that a certain number of X inhalations may be required in the inhalation system before the consumables are completely consumed. For example, the user may find that 12 inhalations are required to completely consume a given consumable. Thus, a progress bar showing zero progress may allow the user to estimate that 12 inhalations will completely consume the consumable. The progress bar may show the consumption of the consumable along the progress bar in response to one or more inhalations in the inhalation system. Thus, the progress bar may provide information to estimate the number of remaining inhalations until the consumables in the inhalation system are completely consumed. For example, if the progress bar shows 50 percent progress for the aforementioned consumable, the user can estimate that 6 further inhalations will completely consume the consumable. After a predetermined number of inhalations, the progress bar may show 100 percent progress. This may indicate that the consumables are likely to be completely consumed.

[0045] Advantageously, by presenting this information to users, it may become possible for them to easily and quickly determine useful information regarding their inhalation count.

[0046] The indicator means may be coupled to one or both of the escape wheel and the conversion mechanism. The indicator means may be configured to change information regarding the inhalation count in response to a first movement or increment of the escape wheel, or in response to a predetermined number of first movements or increments of the escape wheel. Changing information regarding the inhalation count may include increasing the inhalation count shown to the user, or decreasing an estimate of the number of remaining inhalations until the consumables of the inhalation system are completely consumed.

[0047] The display means may include a pointer. The display means may include a scale. The display means may include one or both of a linear scale and a rotational scale. The display means may include a window. The display means may include a display device such as an electronic display. The display means may include electronic ink.

[0048] The pointer may be configured to move relative to a scale, for example, in response to a single inhalation or to a predetermined number of inhalations. The pointer may be configured to move linearly relative to the scale; in this case, the scale may be called a linear scale. The pointer may be configured to rotate relative to the scale; in this case, the scale may be called a rotating scale. Information regarding the inhalation count may be indicated by the pointer pointing to the scale. Information regarding the inhalation count may be visible to the user through a window.

[0049] The inhalation counter may include a change mechanism. The change mechanism may be coupled to a display means. The change mechanism may be for resetting or otherwise changing information regarding the inhalation count.

[0050] The modification mechanism may be configured to allow the user to set information regarding the inhalation count. For example, as described above, the user may be able to set a starting number N that decreases with each inhalation in the inhalation system.

[0051] The modification mechanism may include a freewheel clutch. The freewheel clutch may be coupled to one or both of the escape wheel and the biasing means. The freewheel clutch may be configured to rotate in a first direction to modify information regarding the intake count. The freewheel clutch may be configured to rotate in a second direction opposite to the first direction without modifying information regarding the intake count.

[0052] As will be described in more detail below, the inhalation counter may form part of an inhalation system comprising a holder and an inhaler article. For example, the holder may include an inhalation counter. A change mechanism may be configured to reset or change information regarding the inhalation count in conjunction with either or both of the inhaler article engaging with the holder and / or disengaging the inhaler article from the holder. A change mechanism including a freewheel clutch may be particularly advantageous if the freewheel clutch can provide a simple mechanism in which either engaging the inhaler article with the holder and / or disengaging the inhaler article from the holder changes the information, but the other does not. For example, the freewheel clutch may rotate in a first direction by either engaging the inhaler article with the holder and / or disengaging the inhaler article from the holder. The freewheel clutch may rotate in a second direction by the other of engaging the inhaler article with the holder and / or disengaging the inhaler article from the holder. In some embodiments, information regarding the inhalation count may be reset by either or both engaging the inhaler article with the holder and / or disengaging the inhaler article from the holder, for example, by resetting the inhalation count to zero or to a starting number N that decreases with each inhalation in the inhalation system. Advantageously, this may avoid the need for a separate user action to change the information regarding the inhalation count.

[0053] The inhalation counter is a biasing means Give energy to for Energy supply It may include a mechanism. Advantageously, this allows for biasing means Give energy to The need for a power source can be eliminated.

[0054] Energy supply The mechanism is a biasing means used by the user. Give energy to It can be configured to enable this. Energy supplyThe mechanism may include a freewheel clutch. The freewheel clutch may be coupled to one or both of the escape wheel and the biasing means. The freewheel clutch rotates in a first direction to the biasing means Give energy to It can be configured as follows: The freewheel clutch is a biasing means Give energy to Without, and biasing means Deactivate the energy supply to It can be configured to rotate in a second direction opposite to the first direction without doing so.

[0055] As will be described in more detail below, the inhalation counter may form part of an inhalation system comprising a holder and an inhaler article. For example, the holder may include the inhalation counter. Energy supply The mechanism involves a biasing means for engaging the inhaler article with the holder and / or disengaging the inhaler article from the holder. Give energy to It may be configured as follows: including a freewheel clutch. Energy supply The mechanism is such that the freewheel clutch is a biasing means that engages the inhaler article with the holder and disengages the inhaler article from the holder. to give energy However, engaging the inhaler article with the holder and disengaging the inhaler article from the holder are the two actions of the biasing means. Energy transfer to too Energy grant deactivation This may be particularly advantageous if a simple mechanism can be provided, even if one does not exist. For example, the freewheel clutch may rotate in a first direction by engaging the inhaler article with the holder and disengaging the inhaler article from the holder. The freewheel clutch may rotate in a second direction by engaging the inhaler article with the holder and disengaging the inhaler article from the holder. Advantageously, this provides a biasing means Give energy to The need for separate user actions for this purpose can be avoided.

[0056] The inhalation counter is a combination of changes and Energy supply A mechanism may be included. This mechanism modifies information regarding the inhalation count and provides a biasing means. Give energy toIt may be suitable for. Combined modifications and Energy supply The mechanism allows the user to change information regarding the inhalation count, and the biasing means Give energy to It can be configured to enable this. Advantageously, this allows the biasing means Give energy to The need for a power source can be reduced.

[0057] Combined changes and Energy supply The mechanism changes the information regarding the intake count, and at the same time, the biasing means Give energy to It can be configured in this way.

[0058] Combined changes and Energy supply The mechanism may include a freewheel clutch. The freewheel clutch may be coupled to an escape wheel and a biasing means. The freewheel clutch rotates in a first direction to change information regarding the intake count and the biasing means Give energy to It may be configured such that the freewheel clutch modifies or biases information regarding the intake count. Give energy to It may be configured to rotate in a second direction opposite to the first direction without any other configuration.

[0059] As will be described in more detail below, the inhalation counter may form part of an inhalation system comprising a holder and an inhaler article. For example, the holder may include the inhalation counter. Combined modifications and Energy supply The mechanism modifies information regarding the inhalation count in conjunction with engaging the inhaler article with the holder and / or disengaging the inhaler article from the holder, and biasing means Give energy to It can be configured as follows: a combination of modifications including a freewheel clutch and Energy supply The mechanism involves a freewheel clutch that either engages the inhaler article with the holder or disengages the inhaler article from the holder, thereby changing information regarding the inhalation count, and a biasing means Give energy toHowever, engaging the inhaler article with the holder and disengaging the inhaler article from the holder, the other of which does not change the information regarding the inhalation count, and the biasing means Energy transfer to too Energy grant deactivation This may be particularly advantageous if a simple mechanism can be provided, even if one does not exist. For example, the freewheel clutch may rotate in a first direction by engaging the inhaler article with the holder and disengaging the inhaler article from the holder. The freewheel clutch may rotate in a second direction by engaging the inhaler article with the holder and disengaging the inhaler article from the holder. Advantageously, this may change the information regarding the inhalation count and the biasing means to give energy The need for separate user actions for this purpose can be avoided.

[0060] When used herein, in particular, the modification mechanism, Energy supply Mechanism, combined modifications and Energy supply When referring to the mechanism, engaging the inhaler article with the holder may include receiving at least a portion of the inhaler article into the holder, and / or the action of the inhaler article relative to the holder. The action of the inhaler article relative to the holder may occur when at least a portion of the inhaler article is received into the holder. The action of the inhaler article relative to the holder may include actions to activate, penetrate, or rupture the capsule of the inhaler article.

[0061] When used herein, in particular, the modification mechanism, Energy supply Mechanism, combined modifications and Energy supply When referring to the mechanism, disengaging the inhaler article from the holder may include withdrawing at least a portion of the inhaler article from the holder, and / or the movement of the inhaler article relative to the holder. The movement of the inhaler article relative to the holder may occur when at least a portion of the inhaler article is received into the holder. The movement of the inhaler article relative to the holder may include the movement of the inhaler article accompanying the activation, penetration, or rupture of the capsule of the inhaler article.

[0062] Therefore, the combined changes and Energy supply As an example illustrating the use of the mechanism, combined modifications and Energy supply The mechanism allows the user to reset information regarding the inhalation count, and the biasing means to give energy This can be achieved by a single action, for example, by inserting the inhaler article into the cavity of the holder. More specifically, by inserting the inhaler article into the cavity, the inhalation count is reset to zero by compressing the spring of the biasing means, and the biasing means Give energy obtain.

[0063] The inhalation counter may be a mechanical inhalation counter. The inhalation counter may consist of non-electrical components. The inhalation counter can function without a power source. Advantageously, this can make the manufacture of the inhalation counter inexpensive.

[0064] A holder is provided according to this disclosure. The holder may be suitable for use in an inhaler article. The holder and the inhaler article may together be considered an inhalation system. The holder may include an inhalation counter. The inhalation counter may include any one or more features described with respect to an inhalation counter according to a first embodiment. The inhalation counter may include an inhalation counter according to a first embodiment, or may be an inhalation counter according to a first embodiment.

[0065] A second aspect of this disclosure provides a holder for use in an inhaler article. The holder comprises an inhalation counter according to the first aspect.

[0066] The holder and inhaler article may both be considered an inhalation system.

[0067] The holder may include a fluid inlet. The holder may also include a fluid outlet. A fluid channel, such as the fluid channel mentioned in the first embodiment, may extend between the fluid inlet and the fluid outlet. The holder may include a mouthpiece.

[0068] The holder may be configured to engage with an inhaler article. The holder may be configured to receive at least a portion of the inhaler article. The holder may have a cavity for receiving at least a portion of the inhaler article. The holder may have a housing. The housing may define a cavity. The housing may define one or both of a fluid inlet and a fluid outlet.

[0069] During use, the user may inhale through an inhaler article engaged with a holder, or through the mouthpiece of the holder. This allows a fluid flow, particularly air, to enter through the fluid inlet, then through the fluid channel, and then exit through the fluid outlet. The fluid flow may then flow through or via the inhaler article. The fluid flowing through or via the inhaler article may entrain aerosol components from the inhaler article. This may form an aerosol. The aerosol components may include one or more solid aerosol components such as dry powder, liquid aerosol components such as liquid suspension droplets, and gaseous aerosol components such as vaporized liquid aerosol components. The fluid flow may entrain solid or liquid aerosol components to form an aerosol. The fluid flow may then entrain gaseous aerosol components that subsequently cool and condense to form an aerosol. The aerosol may then flow, for example, through the inhaler article or mouthpiece, into the user's mouth.

[0070] The holder may include a penetration or rupture means. The penetration or rupture means may include a penetration element such as a spike. The penetration or rupture means may be configured to penetrate or rupture the capsule of the inhaler article. The penetration or rupture means may extend into a cavity and be configured to penetrate or rupture the capsule of the inhaler article. The holder may include a sleeve. The sleeve may be movable relative to the penetration or rupture means. The sleeve may define a cavity. When in use, the inhaler article may be partially received within the cavity defined by the sleeve. The sleeve and the inhaler article may be configured to move together relative to the housing of the holder. The sleeve and the inhaler article may be configured to move together relative to the penetration or rupture means, for example, until the penetration or rupture means penetrates or ruptures the capsule of the inhaler article.

[0071] The movement of the sleeve relative to the holder housing is controlled by the change mechanism and Energy supply It can be used to operate one or both of the mechanisms. The operation of the modification mechanism refers to a change in information regarding the inhalation count. Energy supply The mechanism operates using a biasing means. Energy transfer to This may refer to the movement of the sleeve relative to the holder housing, and the combined changes and Energy supply The mechanism can be operated. Combined modifications and Energy supply The operation of the mechanism involves changing information related to the inhalation count, and the biasing means. Energy transfer to It could refer to...

[0072] The inhaler article may include, for example, consumables as described in the first embodiment, or may be consumables. The inhaler article may include capsules, for example, capsules containing dry powder. The holder may include, or may be a dry powder inhaler.

[0073] During use, the user may engage the holder with an inhaler article comprising a capsule containing dry powder. The user may then operate the device to penetrate the capsule through the holder's penetration element. The user may then inhale through the inhaler article or the mouthpiece of the holder. Such inhalation may cause air to flow through the fluid inlet of the holder. This air may then flow through the fluid channel. Inhalation may temporarily increase the fluid flow rate through the fluid channel, as described in relation to the first embodiment. This temporary increase in fluid flow rate may change the information regarding the inhalation count shown to the user by the inhalation counter indicator on the holder. The fluid flow through the fluid channel may entrain the dry powder from the capsule. The fluid and dry powder may form an aerosol within the fluid channel. The aerosol may then be delivered to the user. After the consumables have been completely consumed, the inhaler article may be disengaged from the holder. The holder may then be usable with another unused inhaler article.

[0074] The holder may include an intake volume estimator. The intake volume estimator may include an indicator for showing intake volume information regarding the amount of fluid flow through the fluid channel.

[0075] Advantageously, the combination of an inhalation counter and an inhalation volume estimator can provide users with more information about their inhalation. This may allow users to more accurately determine when consumables have been completely consumed.

[0076] As explained above, the intake counter has a change mechanism, Energy supply Mechanism, and combined modifications and Energy supply This may include one or more combinations of mechanisms. Furthermore, any one, two, or all of these mechanisms may be operated by either engaging the inhaler article with the holder, or by disengaging the inhaler article from the holder, or both. Further details are described above with reference to the inhalation counter. Advantageously, this allows for the modification or biasing of information regarding the inhalation count. to give energy This can avoid the need for separate user actions.

[0077] The holder may be a mechanical holder. The holder may consist of non-electrical components. The holder may function without a power source. Advantageously, this may make the manufacture of the inhalation counter inexpensive.

[0078] The holder may include an inhalation counter having the display means described above. Alternatively, or additionally, the holder may include a display means having any one or more of the features of the display means of the inhalation counter described above.

[0079] According to this disclosure, an inhalation system may be provided. The system may comprise a holder according to a second embodiment. The system may comprise an inhaler article as referred to in relation to the second embodiment.

[0080] According to a third aspect of this disclosure, an inhalation system is provided. The system comprises a holder according to a second aspect. The system further comprises an inhaler article referred to in relation to a second aspect.

[0081] The inhalation system may be a dry powder inhalation system. The holder may be a dry powder inhaler. The inhaler article may include, for example, dry powder contained in a capsule of the inhaler article.

[0082] The capsule may contain either or both nicotine particles and / or flavor particles. The flavor particles may be larger than the nicotine particles. During use, the flavor particles may help deliver the nicotine particles into the user's lungs. The flavor particles may preferentially remain in the user's mouth or oral cavity. During use, either or both of the nicotine particles and / or flavor particles may be delivered at a flow rate within that of conventional smoking methods.

[0083] As used herein, the term “fluid flow” may refer to airflow. A fluid channel may also be an airflow passage. Intake in an intake system may result in a temporary increase in the fluid flow through the fluid channel.

[0084] As used herein, the term "nicotine" may refer to nicotine and nicotine derivatives, such as free base nicotine, nicotine salts, and similar substances.

[0085] As used herein, the term “flavor” may refer to a sensory stimulant compound, composition, or material that alters, or is intended to alter, the taste or aroma properties of nicotine during consumption or inhalation. [Examples]

[0086] The present invention is defined in the claims. However, a non-exclusive list of non-limiting embodiments is provided below. One or more features of these embodiments may be combined with one or more features of other embodiments, forms, or aspects described herein.

[0087] Example 1. An inhalation counter for an inhalation system, wherein the inhalation system comprises a fluid passage, and the inhalation counter is Escape wheel and A biasing means for incrementing the escape wheel, A conversion mechanism configured to perform a first action in response to a temporary increase in the fluid flow rate through the fluid channel during use, Equipped with an anchor, An intake counter, wherein an anchor is coupled to a conversion mechanism, and a biasing means is configured to interact with the escape wheel, allowing the escape wheel to increment in response to a first operation of the conversion mechanism. Example 2. A suction counter according to Embodiment 1, wherein the suction counter has a fluid channel or is configured to be coupled to a fluid channel when in use. Example 3. A suction counter according to Embodiment 1 or 2, wherein a transient increase in fluid flow rate includes a first portion in which the fluid flow rate increases and a subsequent second portion in which the fluid flow rate decreases, and the conversion mechanism is configured to initiate a first operation in response to the first portion of the transient increase in fluid flow rate. Example 4. An inhalation counter according to Embodiment 3, wherein the conversion mechanism is configured to complete the first operation in response to a second portion of a temporary increase in fluid flow rate. Example 5. An intake counter according to any of Examples 1 to 4, wherein the conversion mechanism includes an actuator, and the first operation includes the movement of the actuator. Example 6. An intake counter according to Embodiment 5, wherein the first operation includes a starting motion of the actuator from a first position to a second position, and a returning motion of the actuator from the second position to the first position. Example 7. An inhalation counter according to Embodiment 6, wherein the conversion mechanism is configured to resist the starting motion of the actuator. Example 8. An intake counter according to Embodiment 7, wherein the conversion mechanism includes a resistive component, and the resistive component is configured to resist the starting motion of the actuator. Example 9. A suction counter according to Example 7 or 8, wherein the resistive component includes a spring. Example 10. An intake counter according to any of Examples 5 to 9, wherein the actuator includes one or more of a piston, a bellow, and a membrane. Example 11. A suction counter according to any of Examples 5 to 10, wherein the actuator includes a flap, and at least a portion of the flap can be optionally positioned in the fluid passage or positioned in the fluid passage during use. Example 12. A suction counter according to any of Examples 1 to 11, wherein the conversion mechanism includes a rotatable component, and the first operation includes the rotation of the rotatable component. Example 13. A suction counter according to Example 12, in which a rotatable component includes a turbine. Example 14. An inhalation counter according to any of Examples 1 to 13, wherein the conversion mechanism includes a flexible component, and the first operation includes bending of the flexible component. Example 15. A suction counter according to any of Examples 1 to 14, wherein the conversion mechanism includes a venturi tube or nozzle, and the conversion mechanism is configured to initiate a first operation in response to either or both an increase in the fluid flow rate through the venturi tube or nozzle and / or a decrease in the pressure within the venturi tube or nozzle. Example 16. An escape wheel comprising multiple teeth, an inhalation counter according to any of Examples 1 to 15. Example 17. An inhalation counter according to Embodiment 16, wherein the anchor interacts with the teeth of the escape wheel during use, and the biasing means allows the escape wheel to increment in response to a first operation of the conversion mechanism. Example 18. An inhalation counter according to any of Examples 1 to 17, wherein the anchor includes a first fixed prong and a second fixed prong, the first and second fixed prongs interacting with the teeth of the escape wheel during use, allowing the biasing means to increment the escape wheel in response to a first operation of the conversion mechanism. Example 19. An intake counter according to any of Examples 1 to 18, wherein the biasing means includes a spring. Example 20. An intake counter according to Example 19, wherein the biasing means includes a spiral spring. Example 21. An inhalation counter according to Example 19 or 20, wherein the biasing means includes a helical spring. Example 22. An inhalation counter according to any of Examples 1 to 21, comprising a display means for showing the user information regarding the inhalation count of the inhalation counter. Example 23. An intake counter according to Embodiment 22, wherein the display means is coupled to one or both of the escape wheel and the conversion mechanism. Example 24. An inhalation counter according to Embodiment 22 or 23, wherein the display means is configured to change information regarding the inhalation count in response to a first movement or increment of the escape wheel, or in response to a predetermined number of first movements or increments of the escape wheel. Example 25. An inhalation counter according to any of Examples 22-24, wherein the display means includes one or both of a pointer and a scale. Example 26. An inhalation counter according to Example 25, wherein the inhalation counter includes a pointer and a scale, and is configured so that when in use, the pointer moves relative to the scale in response to a single inhalation or to a predetermined number of inhalations. Example 27. An inhalation counter according to any of Examples 22 to 26, comprising a change mechanism coupled to a display means for resetting or changing information regarding the inhalation count. Example 28. An inhalation counter according to Embodiment 27, wherein the change mechanism is configured to allow the user to set information regarding the inhalation count. Example 29. A change mechanism, including a freewheel clutch, is provided for the intake counter according to either embodiment 27 or 28. Example 30. biasing means to give energy for Energy supply An inhalation counter comprising a mechanism according to any of Examples 1 to 29. Example 31. Energy supply An intake counter according to Example 30, the mechanism includes a freewheel clutch. Example 32. Changes information regarding the inhalation count and biasing means to give energy Combined changes and Energy supplyAn inhalation counter, comprising a mechanism, according to any of Examples 22 to 26. Example 33. Combined changes and Energy supply An intake counter according to Embodiment 32, the mechanism includes a freewheel clutch. Example 34. An intake counter according to Embodiment 33, in which a freewheel clutch is coupled to an escape wheel and a biasing means. Example 35. The freewheel clutch rotates in the first direction to change the information regarding the intake count, and the biasing means Give energy to An inhalation counter according to Example 34, configured as follows. Example 36. The freewheel clutch modifies or biases information regarding the intake count. to give energy An inhalation counter according to embodiment 35, configured to rotate in a second direction opposite to the first direction without any interference. Example 37. Combined changes and Energy supply The mechanism changes the information regarding the inhalation count. Reveal At the same time, biasing means to give energy An inhalation counter configured as described above, according to any of Examples 32-36. Example 38. An inhalation counter according to any of Examples 1 to 37, wherein the inhalation counter is a mechanical inhalation counter consisting of non-electrical components. Example 39. A holder for use with an inhaler article, comprising an inhalation counter according to any of Examples 1 to 38. Example 40. A holder according to Example 39, wherein the inhalation counter is an inhalation counter according to any of Examples 27-29, and the changing mechanism is operated by either or both of engaging an inhaler article with the holder and disengaging the inhaler article from the holder. Example 41. The inhalation counter is an inhalation counter according to any of Examples 30 to 31. Energy supplyA holder according to Embodiment 39 or 40, wherein the mechanism is operated by either or both of engaging an inhaler article with the holder and disengaging the inhaler article from the holder. Example 42. The inhalation counter is an inhalation counter according to any of Examples 32-37, with combined modifications and Energy supply A holder according to Embodiment 39, wherein the mechanism is operated by either or both of engaging an inhaler article with the holder and disengaging the inhaler article from the holder. Example 43. A holder according to any of Examples 39 to 42, wherein the holder is a mechanical holder consisting of non-electrical components. Example 44. A holder according to any of Examples 39 to 43, wherein the holder is equipped with a display means for showing the user information regarding the inhalation count of the inhalation counter. Example 45. An inhalation system comprising a holder and an inhaler article according to any of Examples 39 to 44. Example 46. An inhalation system according to Example 45, wherein the system is a dry powder inhalation system.

[0088] Here, we will further describe the examples with reference to the following figures. [Brief explanation of the drawing]

[0089] [Figure 1] Figure 1 is a cross-sectional view of an inhalation system comprising a holder and an inhaler article. [Figure 2] Figure 2 is a cross-sectional view of the inhalation counter of the inhalation system shown in Figure 1. [Figure 3] Figure 3 is a cross-sectional view of a first alternative inhalation counter for the inhalation system. [Figure 4] Figure 4 is a cross-sectional view of a second alternative inhalation counter for the inhalation system. [Modes for carrying out the invention]

[0090] Figure 1 is a cross-sectional view of the inhalation system 100. The inhalation system 100 is a mechanical inhalation system consisting of non-electrical components. The inhalation system 100 comprises an inhaler article 200 and a holder 300 for receiving the inhaler article 200.

[0091] The inhaler article 200 includes a body extending along the longitudinal axis of the inhaler from an oral end 204 to a distal end 206. The oral end 204 is for insertion into the user's mouth. The distal end 206 is on the opposite side from the oral end 204. The inhaler article 200 includes a capsule cavity located within the body, bounded downstream by a filter element and bound upstream by an open tubular element defining a central passage. As used herein, the terms “upstream” and “downstream” refer to the relative position of the components to the flow of fluid that flows through the system during normal use. The inhaler article 200 includes a capsule located within the capsule cavity. The central passage of the open tubular element forms an air inlet opening extending from the distal end 206 of the body to the capsule cavity. The central passage has a smaller diameter than the capsule. Therefore, the capsule does not come out of the central passage. The capsule contains a dry powder. The dry powder contains nicotine particles and flavor particles.

[0092] The holder 300 comprises a housing 302 that defines a housing cavity. The holder 300 comprises a movable sleeve 306. The housing cavity is for receiving and holding the sleeve 306. The sleeve 306 defines a sleeve cavity 308. The sleeve cavity 308 is for receiving and holding the inhaler article 200. In Figure 1, the inhaler article 200 is shown received within the sleeve cavity 308, and the sleeve 306 is shown received within the housing cavity.

[0093] The holder 300 is fixed to the distal end of the housing 302 and includes a through element 310 that extends along the longitudinal axis of the holder 300 toward the housing cavity. The through element 310 is configured to activate or penetrate a capsule placed inside the inhaler article 200. The holder 300 includes a spring 312 configured to bias the sleeve 306 toward the through element 310. The holder includes a sleeve resting component 311. In the resting position of the holder 300, as shown in Figure 1, the sleeve 306 rests on the sleeve resting component 311, and the sleeve resting component 311 rests on the spring 312. The sleeve resting component 311 includes a central opening. During use, as the sleeve 306 and the sleeve resting component 311 move toward the through element 310 in response to the movement of the spring 312, the through element 310 can extend through the central opening of the sleeve resting component 311.

[0094] The sleeve 306 includes a first open end 314 and a second opposite end 316. The second opposite end 316 of the sleeve 306 includes a central opening. This central opening is configured to allow airflow to enter the sleeve cavity 308. This central opening is configured to allow the through-element 310 to enter the sleeve cavity 308 as the sleeve 306 moves toward the through-element 310 along the longitudinal axis of the holder 300.

[0095] The holder 300 includes a fluid inlet 318 and a fluid passage 322 extending from the fluid inlet 318 to the second end 316 of the sleeve 306. The holder 300 also includes an intake counter 350 coupled to the fluid passage 322.

[0096] During use, the user inserts the inhaler article 200 into the sleeve cavity 308 of the holder 300. At this stage, the inhalation system 100 appears as shown in Figure 1. The user then pushes the inhaler article 200 toward the distal end 206 of the inhaler article 200. This compresses the spring 312, causing the inhaler article 200, the sleeve 306, and the sleeve stationary component 311 to move distally relative to the housing 302. When this occurs, the penetrating element 310 passes through the central opening of the sleeve stationary component 311, then through the central opening of the sleeve 306, then extends into the sleeve cavity 308, and then extends into the capsule cavity, contacting and penetrating the capsule. The user can then release the inhaler article 200. This causes the spring 312 to expand, allowing the inhaler article 200, sleeve 306, and sleeve stationary component 311 to move proximal to the housing 302 and return to the stationary position shown in Figure 1. However, at this stage, the capsule is penetrated.

[0097] The user can then inhale through the mouth end 204 of the inhaler article 200. This causes air to flow in through the fluid inlet 318 of the holder 300 and through the fluid channel 322. This air passes through the central opening of the sleeve 306 and then through the central opening of the inhaler article 200 into the capsule cavity. The dry powder from the capsule is carried by this airflow to form an aerosol. This aerosol flows through the filter element and is delivered to the user. The airflow path is shown by several arrows in Figure 1. The user can inhale repeatedly with the inhaler article 200. Each inhalation results in a temporary increase in the fluid flow rate through the fluid channel 322. Each inhalation is counted by the inhalation counter 350, and a display means on the holder 300 shows the user information regarding the inhalation count of the inhalation counter 350 through a viewing window on the holder 300. The interaction between the fluid flow and the inhalation counter 350 is described in more detail below with reference to Figure 2. After the capsule is completely consumed, for example after 12 inhalations, the indicator shows this to the user. The user can then remove the inhaler article 200 from the holder 300. This action resets the inhalation counter 350 and the biasing means of the inhalation counter. Energy is given to This will be discussed in more detail later.

[0098] Figure 2 shows the inhalation counter 350 of the holder 300.

[0099] The suction counter 350 is coupled to the fluid passage 322 via a venturi tube 323. The suction counter 350 comprises an escape wheel 352, a biasing means 354 in the form of a spiral spring for incrementing the escape wheel 352, and a conversion mechanism. The conversion mechanism is configured to perform a first action in response to a temporary increase in the fluid flow rate through the fluid passage 322. The suction counter 350 also comprises an anchor 356. The anchor 356 is coupled to the conversion mechanism and is configured to interact with the escape wheel 352 so that the biasing means 354 can increment the escape wheel 352 in response to the first action of the conversion mechanism. Specifically, the anchor 356 includes a first fixed prong 357 and a second fixed prong 359, the first fixed prong 357 and the second fixed prong 359 interacting with the teeth of the escape wheel 352 so as to enable the biasing means 354 to increment the escape wheel 352 in response to a first operation of the conversion mechanism.

[0100] The conversion mechanism includes an actuator 358 in the form of a piston. The conversion includes a resistive component 360 in the form of a helical spring. The resistive component 360 is coupled to the actuator 358.

[0101] During use, inhalation with the inhaler article 200 results in a temporary increase in the fluid flow rate through the fluid passage 322, as described above. This temporary increase in fluid flow rate may include a first portion in which the fluid flow rate increases, and a subsequent second portion in which the fluid flow rate decreases.

[0102] When a user inhales through the inhaler article 200, a fluid flow, particularly an airflow, is drawn out through the fluid inlet 318 of the holder 300. This fluid flow accelerates as it passes through the venturi tube 323, resulting in a decrease in pressure within the venturi tube 323. This pressure drop acts to initiate the first operation of the conversion mechanism.

[0103] The first operation includes the motion of actuator 358. Specifically, the first operation includes the starting motion of actuator 358 from a first position to a second position, and the returning motion of actuator 358 from the second position to the first position. The resistance component 360 is configured to resist the starting motion of actuator 358.

[0104] In the inhalation counter 350 of Figure 2, the initial motion of the actuator 358 involves a downward movement of the actuator 358. Thus, when the user begins inhaling with the inhaler article, the actuator 358 moves downward, compressing the resistance component 360. This causes the anchor 356 to move. Specifically, due to the coupling between the actuator 358 and the anchor 356, the anchor 356 moves downward, and the anchor 356 pivots clockwise around its pivot point 362. This disengages the first fixed prong 357 of the anchor 356 from the first teeth of the escape wheel 352. This causes the escape wheel 352 to rotate a small amount under the operation of the biasing means 354 before the second fixed prong 359 of the anchor 356 engages with the second teeth of the escape wheel 352, preventing further rotation. Thus, the first portion of the transient increase in fluid flow is less than a single increment of the escape wheel 352. While the fluid flow rate through the fluid passage 322 is sufficiently high, the pressure inside the venturi tube 323 is sufficiently low to hold the actuator 358 in its second position, thereby preventing further rotation of the escape wheel 352 under the operation of the biasing means 354.

[0105] Finally, the fluid flow rate through the fluid channel 322 begins to decrease. This is the second part of the temporary increase in fluid flow rate. During or immediately after this second part of the temporary increase in fluid flow rate, the flow rate through the venturi tube 323 decreases, and the pressure inside the venturi tube 323 increases toward atmospheric pressure. As the pressure increases, the resistance component 360 expands, and the actuator 358 moves upward. That is, in the return motion of the actuator 358, the actuator 358 returns from its second position to its first position. When this happens, the anchor 356 rotates counterclockwise around its pivot point 362. This disengages the second fixed prong 359 from the second teeth of the escape wheel 352. The escape wheel 352 then rotates a small amount under the action of the biasing means 354 before the first fixed prong 357 engages with the third teeth of the escape wheel 352. In this embodiment, the third tooth of the escape wheel 352 is located adjacent to and immediately behind the first tooth of the escape wheel 352. Therefore, after the first operation of the conversion mechanism, the escape wheel 352 receives a single increment under the operation of the biasing means 354.

[0106] The inhalation counter 350 further comprises a display means 364 for showing the user information regarding the inhalation count of the inhalation counter 350. The display means 364 includes a pointer 366 and a substantially circular scale 368. The scale 368 is numbered from 0 to 29 along its outer surface. The pointer 366 remains fixed to the housing 302 of the holder 300 and points to one of the numbers on the scale 368. Through a viewing window on the holder 300, the user can see the number that the pointer 366 points to at a given time. The scale 368 of the display means 364 is coupled to the escape wheel 352 so as the escape wheel 352 rotates, it rotates relative to the pointer 366. Thus, an incremental rotation of the escape wheel 352 results in a corresponding incremental rotation of the scale 368 relative to the pointer 366. In this sense, the scale 368 may be called a rotating scale. In response to inhalation, a first action of actuator 358 increments the escape wheel 352 and the scale 368, so that the pointer 366 points to the subsequent number on the scale 368. In the embodiment shown in Figure 1, with each inhalation, the number indicated by the pointer 366 increases by 1. Thus, if the number is set to zero before the first inhalation, the inhalation counter 350 counts the number of inhalations in the inhaler article 200 and indicates this inhalation count to the user. However, as will be apparent to those skilled in the art, the display means 364 can indicate information regarding the inhalation count to the user in a variety of ways. For example, the inhalation counter 350 may count down instead of count up. Similarly, the gear ratio between the scale 368 and the escape wheel 352 may be adjusted so that the scale 368 rotates at a significantly smaller angle than the escape wheel 352, and the scale 368 may simply include a colored surface that slowly covers a viewing window in response to inhalation. By covering the viewing window, it may indicate that the inhaler article 200 is likely to be completely consumed.

[0107] The inhalation counter 350 also has combined modifications and Energy supply It is equipped with a mechanism (not shown). Combined modifications and Energy supplyThe mechanism is a manual winding mechanism on a holder 300 coupled to a scale 368. The user can manually rotate the winding mechanism to reduce the inhalation count indicated by the display means 364, for example, to reset it to zero. The gear mechanism shown in Figure 2 provides a biasing means 354 as the user rotates the winding mechanism to reduce the inhalation count. to again Energy is given This is because a biasing means 354 in the form of a spiral spring is coupled to a biasing means gear 355 that rotates as the winding mechanism rotates, and this rotation causes the biasing means 354 Energy is given to This is because (in other words, it will be tightened or unwound)

[0108] As the winding mechanism rotates in this direction, the escape wheel 352 does not rotate. This is because the escape wheel 352 is coupled to the escape wheel gear 372 by the freewheel clutch 370. Therefore, when this gear rotates counterclockwise, the scale 368 and the escape wheel 352 rotate clockwise. However, when this gear rotates clockwise, the scale 368 rotates counterclockwise and the escape wheel 352 does not rotate.

[0109] As will be obvious to those skilled in the art, the combined modifications and Energy supply The mechanism may include a preferred mechanism that is operated by inserting the inhaler article 200 into or removing the inhaler article 200 from the sleeve cavity.

[0110] Figure 3 is a cross-sectional view of a first alternative inhalation counter 450 for an inhalation system. For example, the inhalation counter 450 can replace the inhalation counter 350 used in the inhalation system of Figure 1.

[0111] The suction counter 450 may be coupled to the fluid passage 322 via a venturi tube (not shown). The suction counter 450 comprises an escape wheel 452, a biasing means 454 in the form of a helical spring for incrementing the escape wheel 452, and a conversion mechanism. The conversion mechanism is configured to perform a first action in response to a transient increase in the fluid flow rate through the fluid passage 322. The suction counter 450 also comprises an anchor 456. The anchor 456 is coupled to the conversion mechanism and is configured to interact with the escape wheel 452 so as to allow the biasing means 454 to increment the escape wheel 452 in response to the first action of the conversion mechanism. Specifically, the anchor 456 includes a first fixed prong 457 and a second fixed prong 459, the first fixed prong 457 and the second fixed prong 459 interacting with the teeth of the escape wheel 452 so that the biasing means 454 can increment the escape wheel 452 in response to a first operation of the conversion mechanism.

[0112] The conversion mechanism includes an actuator 458 in the form of a flexible membrane. During use, inhalation in the inhaler article 200 results in a transient increase in the fluid flow rate through the fluid passage 322, as described above. The transient increase in the fluid flow rate may include a first portion in which the fluid flow rate increases and a subsequent second portion in which the fluid flow rate decreases, also as described above.

[0113] When a user inhales through the inhaler article 200, a fluid flow, particularly an airflow, is drawn out through the fluid inlet 318 of the holder 300. This fluid flow accelerates as it passes through the venturi tube, resulting in a decrease in pressure within the venturi tube. This pressure drop acts to initiate the first operation of the conversion mechanism.

[0114] The first operation involves the movement of actuator 458. Specifically, the first operation includes the starting motion of actuator 458 from a first position to a second position, and the returning motion of actuator 458 from the second position to the first position. The resistance of the flexible membrane naturally resists the starting motion of actuator 458.

[0115] In the inhalation counter 450 in Figure 3, the initial motion of the actuator 458 includes a downward movement of the actuator 458 to reach the position shown in Figure 3. Therefore, when the user begins inhaling with the inhaler item, the actuator 458 moves downward. That is, the flexible membrane bends so that the central portion of the membrane moves downward in response to the decrease in pressure in the venturi tube. As a result, the anchor 456 moves in the same way that the anchor 356 in Figure 2 moves due to the downward movement of the piston.

[0116] Finally, the fluid flow rate through the fluid channel 322 begins to decrease. This is the second part of the transient increase in fluid flow rate. During or immediately after this second part of the transient increase in fluid flow rate, the flow rate through the venturi tube decreases, and the pressure in the venturi tube increases toward atmospheric pressure. As the pressure increases, the flexible membrane, or the inherent resistance of the actuator 458, acts to move the actuator 458 upward. That is, in the return motion of the actuator 458, the actuator 458 returns from its second position to its first position. When this happens, the anchor 456 rotates counterclockwise around the pivot point 462, as described in relation to the upward movement of the actuator 358 in Figure 2. Thus, after the first operation of the conversion mechanism, the escape wheel 452 undergoes a single increment under the operation of the biasing means 454.

[0117] The inhalation counter 450 further comprises a display means 464 for showing the user information regarding the inhalation count of the inhalation counter 450. The display means 464 includes a pointer 466 and a substantially straight linear scale 468. The scale 468 is numbered from 0 to 25. In this embodiment, the scale 468 remains fixed to the housing 302 of the holder 300. The pointer 466 points to one of the numbers on the scale 468. In this embodiment, a substantially rectangular viewing window may be positioned on the holder 300, covering the scale 468 and the pointer 466, so that the user can see the number that the pointer 466 points to at a given time. The pointer 466 of the display means 464 is coupled to the escape wheel 452 such that it translates linearly upward relative to the scale 468 as the escape wheel 452 rotates. In this embodiment, a rack and pinion mechanism is used. Specifically, the pointer 466 is fixed to a linear gear 455 or rack, the escape wheel 454 is coupled to an escape wheel gear 472 or pinion via a freewheel clutch 470, and the escape wheel gear 472 is coupled to the linear gear 455 or rack. Thus, the incremental rotation of the escape wheel 452 in response to inhalation results in a corresponding incremental rotation of the escape wheel gear 472 and a corresponding incremental translational motion of the pointer 466 relative to the scale 468. In the embodiment shown in Figure 3, this incremental translational motion of the pointer 466 causes the pointer 466 to point to a subsequent number on the scale 468. Thus, in the embodiment shown in Figure 3, with each inhalation, the number pointed to by the pointer 466 increases by 1. Therefore, if the number is set to zero before the first inhalation in the inhaler article 200, the inhalation counter 450 counts the number of inhalations in the inhaler article 200 and displays this inhalation count to the user. However, as will be apparent to those skilled in the art, the display means 464 can provide the user with other information regarding the inhalation count. For example, the inhalation counter 450 may count down instead of count up. The display means 464 may also provide the user with other information regarding the inhalation count in other ways.For example, the pointer 466 may include a colored surface extending downward, approximately the length of the viewing window. In response to inhalation, this colored surface may then move upward to slowly cover the viewing window. Covering the viewing window may indicate that the inhaler article 200 is likely to have been completely consumed.

[0118] The inhalation counter 450 also has combined modifications and Energy supply It is equipped with a mechanism (not shown). Combined modifications and Energy supply The mechanism is operated by inserting the inhaler article 200 into the sleeve cavity. Although the mechanism is not shown in the figure, several options for this mechanism will be obvious to those skilled in the art. One embodiment is described below.

[0119] The sleeve 306 may include a longitudinal slit extending downward from the top of the sleeve 306 along the side wall of the sleeve 306. The sleeve gear of the series of gears may be coupled to the escape wheel gear 472 to which the escape wheel 452 is coupled by a freewheel clutch 470. For example, when using a rack and pinion arrangement as shown in the embodiment of Figure 3, the sleeve gear may be coupled to the rack to which the escape wheel gear 472 is coupled via a series of gears. This sleeve gear may also extend into the sleeve cavity partially through the slot. When a user inserts an inhaler article 200 into the sleeve cavity 308, the inhaler article 200 engages with the sleeve gear, and the sleeve gear may rotate as the inhaler article 200 is inserted further into the sleeve cavity 308. The series of gears couples the sleeve gear to the escape wheel gear 472 such that the escape wheel gear 472 also rotates as the sleeve gear rotates. Specifically, as the sleeve gear rotates, the escape wheel gear 472 rotates counterclockwise, thereby moving the pointer 466 downward and compressing the helical spring or biasing means 454. However, since the escape wheel gear 472 is coupled to the escape wheel 452 by the freewheel clutch 470, the counterclockwise rotation of the escape wheel gear 472 does not cause the escape wheel 452 to rotate. In this way, the inhaler article 200 is engaged with the holder 300, and in particular the inhaler article 200 is inserted into the sleeve cavity, and the combined modifications and Energy supply The mechanism is activated to reset pointer 466 to zero, and the biasing means 454 to give energy The sleeve gear may also be coupled to a series of gears by a freewheel clutch. This ensures that any rotation of the sleeve gear in the opposite direction when the inhaler article 200 is removed from the sleeve cavity 308 does not act to rotate the escape wheel gear 472.

[0120] Figure 4 is a cross-sectional view of a second alternative inhalation counter 550 for the inhalation system. For example, the inhalation counter 550 can replace the inhalation counter 350 used in the inhalation system of Figure 1.

[0121] The intake counter 550 is identical to the intake counter 350 shown in Figure 2, except that the piston-shaped actuator 358 is replaced with a rotatable flap-shaped actuator 558, the helical spring-shaped resistance component 360 is replaced with a torsion spring-shaped resistance component 560, and the actuator 558 is coupled to the anchor 356 via a connecting rod 559. In the embodiment shown in Figure 4, the first operation of the conversion mechanism includes rotation of the actuator 558 in a first direction, followed by rotation of the actuator in a second direction opposite to the first direction. This will be explained in detail below. Otherwise, the intake counter 550 in Figure 4 functions in the same way as the intake counter in Figure 2.

[0122] The suction counter 550 in Figure 4 includes an actuator 558 in the form of a rotatable flap. At least a portion of the flap is located within the fluid passage 322. The flap is biased by a resistance component 560 toward the forward position shown by the dotted line in Figure 4. The suction counter 550 includes a connecting rod 559. The first end of the connecting rod 559 is pivotably connected to an anchor 356, and the second end of the connecting rod 559 is pivotably connected to the flap.

[0123] During use, when the user inhales with the inhaler item 200, air flows through the airflow passage 322 and collides with the flap. During the first portion of the airflow, the airflow exerts force on the flap, causing it to rotate toward the rear position, as shown by the solid line in Figure 4. This rotation from the forward position to the rear position may be called the starting motion of the actuator 558 and corresponds to the downward movement of the piston in Figure 2. This motion causes the connecting rod 559 to move, thereby causing the anchor 356 to rotate around its pivot point 362. Thus, the rotation of the flap from the forward position to the rear position causes the anchor 356 to rotate in the same way as the downward movement of the piston of the inhalation counter 350 in Figure 2.

[0124] As the suction nears its end, the airflow through the air passage 322 decreases. Consequently, under the operation of the torsion spring-type resistance component 560, the flap rotates from the rearward position to the forward position. This may be referred to as the return motion of the actuator 558 and corresponds to the upward movement of the piston in Figure 2. This motion causes the connecting rod 559 to move, thereby causing the anchor 356 to rotate around its pivot point 362. Thus, the rotation of the flap from the rearward position to the forward position causes the anchor 356 to rotate in the same way as the upward movement of the piston of the suction counter 350 in Figure 2. This completes the first operation of the conversion mechanism. All other details of the suction counter 550 in Figure 4 are identical to those of the suction counter 350 in Figure 2.

[0125] For the purposes of this specification and the appended claims, unless otherwise indicated, all numbers representing amounts, quantities, percentages, etc., should be understood in all cases as being modified by the term “approximately.” Furthermore, all ranges include the disclosed maximum and minimum points and any intermediate ranges within them, which may or may not be specifically listed herein. Thus, in this context, number A is understood as A ± 10%. In this context, number A can be considered to include a number that falls within the general standard error of the measurement of the characteristic that number A modifies. In some cases used in the appended claims, number A may deviate by the percentages listed above, provided that the amount of deviation of A does not substantially affect the basic and novel characteristics of the claimed invention. Furthermore, all ranges include the disclosed maximum and minimum points and any intermediate ranges within them, which may or may not be specifically listed herein.

Claims

1. An inhalation counter for an inhalation system, wherein the inhalation system comprises a fluid passage, and the inhalation counter is Escape wheel and A biasing means for incrementing the escape wheel, A conversion mechanism configured to perform a first operation in response to a temporary increase in the fluid flow rate through the fluid channel during use, Equipped with an anchor, A suction counter, wherein the anchor is coupled to the conversion mechanism, and the biasing means is configured to interact with the escape wheel so as to enable the escape wheel to increment in response to the first operation of the conversion mechanism.

2. The suction counter according to claim 1, wherein the temporary increase in the fluid flow rate includes a first portion in which the fluid flow rate increases and a subsequent second portion in which the fluid flow rate decreases, and the conversion mechanism is configured to initiate the first operation in response to the first portion of the temporary increase in the fluid flow rate and to complete the first operation in response to the second portion of the temporary increase in the fluid flow rate.

3. The suction counter according to claim 1 or 2, wherein the conversion mechanism includes an actuator, and the first operation includes the movement of the actuator.

4. The suction counter according to claim 3, wherein the first operation includes a starting motion of the actuator from a first position to a second position, and a returning motion of the actuator from the second position to the first position, and the conversion mechanism is configured to resist the starting motion of the actuator.

5. The suction counter according to any one of claims 1 to 4, wherein the conversion mechanism includes a rotatable component, and the first operation includes the rotation of the rotatable component.

6. The suction counter according to any one of claims 1 to 5, wherein the conversion mechanism includes a flexible component, and the first operation includes bending the flexible component.

7. The inhalation counter according to any one of claims 1 to 6, wherein the inhalation counter comprises a display means for showing the user information relating to the inhalation count of the inhalation counter.

8. The inhalation counter according to claim 7, wherein the inhalation counter comprises a change mechanism coupled to the display means for resetting or changing the information relating to the inhalation count.

9. The inhalation counter according to claim 8, wherein the modification mechanism is configured to allow the user to set the information relating to the inhalation count.

10. The suction counter according to any one of claims 1 to 9, further comprising an energy supply mechanism for supplying energy to the biasing means.

11. An inhalation counter according to any one of claims 7 to 9, comprising a combined modification and energy supply mechanism for modifying the information relating to the inhalation count and supplying energy to the biasing means.

12. The intake counter according to claim 11, wherein the combined modification and energy transfer mechanism includes a freewheel clutch.

13. A holder for use in an inhaler article, wherein the holder comprises an inhalation counter as described in any one of claims 1 to 12.

14. The holder according to claim 13, wherein the inhalation counter is the inhalation counter according to any one of claims 8 to 12, and one or more of the changing mechanism, the energy supply mechanism, and the combined changing and energy supply mechanisms are operated by either or both of engaging the inhaler article with the holder and disengaging the inhaler article from the holder.

15. An inhalation system comprising an inhaler article and the holder according to claim 13 or 14.

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