CN104971413B - Anti-misoperation unit and anti-misoperation method of powder aerosol dosing device - Google Patents
Anti-misoperation unit and anti-misoperation method of powder aerosol dosing device Download PDFInfo
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- CN104971413B CN104971413B CN201510373608.3A CN201510373608A CN104971413B CN 104971413 B CN104971413 B CN 104971413B CN 201510373608 A CN201510373608 A CN 201510373608A CN 104971413 B CN104971413 B CN 104971413B
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Abstract
An anti-misoperation unit and an anti-misoperation method of a powder inhalation drug administration device belong to the field of inhalation drug administration instruments. The structure form of the anti-misoperation unit is adopted, the structural characteristics of the pawl and the one-way open slot are utilized, the anti-reverse rotation function of the turntable is realized through the matching and interaction of the pawl structure, the anti-rotation part and the one-way open slot, the rotation angle of the quantitative medicine feeding disc is correct when the powder inhalation dosing device is used every time, the powder inhalation dosing device needs to rotate a specific angle to correctly feed medicine when being operated, the condition of medicine feeding failure can be prevented, and the rotation angle is correct when the powder inhalation dosing device is used every time; thereby prevent the circumstances of dosing failure, and can reduce the number of times that the operation of using medicine needs the rotatory operation part at every turn under the prerequisite of the turned angle who guarantees the ration and give the batch pan, convenient to use person's operation more. Can be widely applied to the design and manufacture fields of powder aerosol administration devices with various specifications.
Description
Technical Field
The invention belongs to the field of devices for inputting media into human bodies, and particularly relates to an inhalation type drug delivery device for delivering powder inhalation with specified dose into the lungs of patients through oral cavities along with respiratory airflow.
Background
In modern medical technology, the medicine can directly enter the lung and be absorbed into blood by oral or nasal inhalation, the "first pass" effect of the liver is avoided.
Clinically, pulmonary administration is mainly used for treating lung diseases such as asthma, chronic obstructive pneumonia, cystic fibrosis and the like. Due to the characteristics of thin cell wall, large surface area, low metabolic activity of enzymes and the like of alveolar epithelial cells, in recent years, pulmonary administration is gradually becoming a new way for non-invasive administration of more drugs (such as polypeptide and protein drugs).
In the pulmonary delivery mode, the powder aerosol has many advantages over the aerosol, such as avoiding the problem of the cooperation of the device with the patient during the use of the aerosol, without using propellant, etc., therefore, the preparation is the lung inhalation preparation form with the most application prospect at present.
An aerosol refers to a formulation of micronized drug or drug in capsules, vesicles or multi-dose reservoirs with carriers, which is actively inhaled by the patient into the lungs using a specially designed aerosol delivery device or inhalation device (also known as an inhalation delivery device, and also known as a dry powder inhalation device or a dry powder delivery device). The inhalation powder inhalation depends on the autonomous respiration of a patient to enable the medicine powder to enter a respiratory system, and has the characteristics of convenience in carrying, low cost and strong stability. In recent years, the application range of the inhalation aerosol powder has been expanded from the traditional lung local disease therapeutic drug to the systemic administration of polypeptide proteins, antibiotics, biological drugs and cardiovascular system drugs. Especially, some biological macromolecules can achieve ideal bioavailability after inhalation-pulmonary administration of the medicine powder.
The powder aerosol drug delivery device is the core of powder aerosol development, and the quality of the design of the powder aerosol drug delivery device directly influences the lung deposition efficiency of the powder aerosol.
For dry powder aerosol drug delivery devices, there are generally two general categories: <xnotran> , . </xnotran>
Reservoir type administration devices by inhalation are usually provided with a powder container and a corresponding metering means by means of which the powdered medicament is dispensed from the powder container in successive metered amounts.
The applicant previously applied for a chinese patent invention with an announcement date of 2015, 04 and 22 months and an announcement number of CN102228725B, which discloses a "dry powder administration device", including a flow channel assembly, a powder storage container and an administration metering assembly, wherein an inverted cone-shaped powder storage container is arranged on the upper part of a housing; an annular manual rotating part is arranged on the periphery of the upper part of the shell; the outer surface of the upper part of the shell is provided with a rotary slideway, and the inner side surface of the annular manual rotary part is correspondingly provided with a sliding block; a first elastic member is arranged between the annular manual rotating part and the upper part of the shell; one end of the rotating slideway is provided with an air inlet; a flow passage component is arranged in the shell; a suction nozzle is arranged on the outer side of the shell, and a suction nozzle sleeve is arranged outside the suction nozzle; a medicine inlet is arranged at the horizontal part of the flow passage part; a dosing metering component is arranged below the inverted cone-shaped medicinal powder storage container; the flow passage part is sequentially connected with the air inlet, the dosing metering component and the suction nozzle through an air circuit. It dries the powder metering component before adding the medicine powder, can accurately meter powder dose and avoid "overdose" to dose.
In above-mentioned technical scheme, adopt the structural style that sets up rotatory slide, the turned angle and the direction of rotation of restricting manual rotating part, in order to guarantee that back taper form powder storage container and be located its below dose the position relation between the measurement subassembly and dose the measurement subassembly in ration give the direction of rotation and the rotation angle of batch pan, ensure to dry and the ration is dosed powder measurement subassembly before adding the medicine powder, so that store up the medicine inlet that the recess of dosing that has powder aligns the runner part, accomplish the process of supplying medicine, make the patient inhale powder and possess the prerequisite.
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How to simplify the operation steps as much as possible and provide the convenience of operation on the premise of ensuring that the rotation direction and the rotation angle of the quantitative dosing tray are in place is a problem to be solved urgently in the implementation process of the technical scheme.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an anti-misoperation unit and an anti-misoperation method of a powder inhalation dosing device, which adopt a structural form of arranging the anti-misoperation unit, utilize the structural characteristics of a pawl and a one-way open slot to ensure that the rotation angle of a quantitative dosing tray is correct during each use, thereby preventing the situation of dosing failure, reducing the times of rotating an operation part required by each dosing operation on the premise of ensuring the rotation angle of the quantitative dosing tray, and being more convenient for a user to operate.
The technical scheme of the invention is as follows: the anti-misoperation unit of the powder inhalation dosing device is provided, the powder inhalation dosing device comprises a lower shell, a rotary disc, a rotary cover and a vibration gear, the rotary cover is arranged outside the lower shell, the rotary disc is arranged in the lower shell, the vibration gear is arranged below the rotary disc, the rotary disc is a quantitative dosing disc in a dosing metering assembly, when a user rotates the rotary cover, the rotary cover drives the rotary disc to rotate through the vibration gear, and the vibration gear simultaneously provides a vibration source for the rotary disc so as to realize the function of vibration dosing; <xnotran> : </xnotran>
The inner wall of the lower shell is provided with at least one unidirectional open slot at the position corresponding to the position of the rotary disc;
at least one pawl structure is arranged on the outer edge of the rotary disc, and the pawl structure consists of a pawl arm connected with the outer edge of the rotary disc and a pawl end part positioned at one end of the pawl arm;
the end part of the pawl and the one-way open slot are positioned on the same horizontal plane;
an anti-rotation part is sleeved between the turntable and the vibration gear, and the anti-rotation part is a cylindrical component;
anti-rotation bulges are arranged at the positions, corresponding to the pawl end parts of the pawl structures on the outer edge of the turntable, of the outer edge of the upper end of the anti-rotation part;
the pawl end part of the pawl structure is arranged at intervals with the anti-rotation bulge;
the lower end of the anti-rotation part is provided with a stressed tooth;
force application teeth are arranged on the periphery of the vibration gear;
force application teeth of the vibration gear and force application teeth of the anti-rotation part are arranged at intervals in a crossed mode, and a transition wheel is arranged between the force application teeth and the force application teeth to form a rotating force transmission gear kinematic pair;
the transition wheel is a rotating wheel with a folded edge, the folded edge is of a convex-concave structure, the force application teeth are just embedded into the folded edge of the convex structure of the rotating wheel, and the force bearing teeth are just inserted into the folded edge of the concave structure of the rotating wheel;
the one-way open slot, the pawl structure, the anti-rotation part and the rotating force transmission gear kinematic pair form an anti-misoperation unit of the powder aerosol dosing device;
when a user rotates the rotary cover to a specific angle along a first rotating direction, the rotary cover drives the vibrating gear, the rotary plate is not driven by the vibrating gear, the vibrating gear and the rotary plate generate relative motion, and the vibrating gear moves up and down under the action of the spring to provide a vibration source for the rotary plate and the outer medicine barrel so as to realize the function of vibration medicine feeding;
when a user rotates the rotary cover to a specific angle along the second rotation direction, the rotary cover drives the vibration gear, the vibration gear drives the rotary disc to rotate, and a medicine groove filled with medicine powder on the rotary disc rotates to a position ready for medicine delivery from the lower part of the medicine cylinder at the moment, so that one-time quantitative medicine supply is realized;
the first rotation direction thereof and the second direction of rotation is in the opposite direction.
Specifically, in the process that the spiral cover rotates along the first rotating direction, if the spiral cover, the vibration gear and the anti-rotation member rotate at a specific angle along the first rotating direction at the same time, at the moment, because the pawl structure is positioned at the gap part of the anti-rotation bulge of the anti-rotation member, and the pawl of the turntable has a deformation space, when the spiral cover rotates along the second rotating direction, the turntable can be driven to rotate along the second rotating direction;
in the process that the rotary cover rotates along the first rotating direction, if the rotary cover, the vibrating gear and the anti-rotation part do not rotate to the specific angle, the pawl structure of the rotary plate cannot be positioned at the gap part of the anti-rotation part anti-rotation bulge, so that the pawl structure has no deformation space, and then when the rotary cover rotates along the second rotating direction, the rotary plate cannot rotate along the second rotating direction, so that the rotating angle of the rotary plate is correct when the powder aerosol administration device is used every time, and misoperation cannot be caused.
Furthermore, in the process that the screw cap rotates along the first rotating direction, because the pawl structure is clamped in the one-way open slot, the rotating disc does not rotate in the process that the screw cap rotates along the first rotating direction, and only the vibration gear and the anti-rotation piece rotate synchronously along the first rotating direction along with the screw cap.
Wherein the first rotational direction is viewed as a counterclockwise rotational direction from the top of the powder aerosol delivery device; the second rotation direction is viewed as a clockwise rotation direction from the top of the powder inhalation delivery device.
The specific angle described is 360 degrees per number of detent configurations.
Alternatively, the specific angle is 360 degrees/number of unidirectional opening slots.
The invention also provides an anti-misoperation method of the powder aerosol dosing device, wherein a rotary cover is arranged outside the powder aerosol dosing device, a rotary disc is arranged in a lower shell, a vibrating gear is arranged below the rotary disc, the rotary disc is a quantitative dosing disc in a dosing metering component, when a user rotates the rotary cover, the rotary cover drives the rotary disc to rotate through the vibrating gear, and the vibrating gear simultaneously provides a vibrating source for the rotary disc so as to realize the function of vibrating dosing; the method is characterized in that:
the outer edge of the turntable of the powder aerosol administration device is provided with at least one pawl structure;
<xnotran> , ; </xnotran>
At least one unidirectional open slot is arranged on the inner wall of the lower shell;
when a user rotates the rotary cover along a first rotating direction, the rotary cover drives the vibration gear, the vibration gear and the rotary plate generate relative motion, and the vibration gear moves up and down under the action of the spring to provide a vibration source for the rotary plate and the outer medicine barrel so as to realize the function of vibration medicine feeding;
when a user rotates the rotary cover along the second rotation direction, the rotary cover drives the vibration gear, the vibration gear drives the rotary disc to rotate, and at the moment, a medicine groove filled with medicine powder on the rotary disc rotates to a position ready for medicine delivery from the lower part of the medicine cylinder, so that one-time quantitative medicine supply is realized;
the first rotating direction is opposite to the second rotating direction;
the anti-misoperation method realizes the anti-reverse rotation function of the rotary disc through the matching and interaction of the pawl structure, the anti-rotation part and the one-way open slot, reminds a user whether the rotation of the rotary cover is in place or not by utilizing the matching of the pawl structure and the one-way open slot, ensures that the rotary cover of the aerosol drug administration device can correctly administer drugs by rotating a specific angle, prevents the drug administration failure, and further realizes the anti-misoperation function of the aerosol drug administration device.
Specifically, in the process that the spiral cover rotates along the first rotating direction, if the spiral cover, the vibration gear and the anti-rotation member rotate at a specific angle along the first rotating direction at the same time, at the moment, because the pawl structure is positioned at the gap part of the anti-rotation bulge of the anti-rotation member, and the pawl of the turntable has a deformation space, when the spiral cover rotates along the second rotating direction, the turntable can be driven to rotate along the second rotating direction;
if the rotary cover, the vibration gear and the anti-rotation part do not rotate to the specific angle in the process that the rotary cover rotates along the first rotating direction, the pawl structure of the rotary plate cannot be located at the gap position of the anti-rotation part anti-rotation bulge, so that the pawl structure does not have a deformation space, and then when the rotary cover rotates along the second rotating direction, the rotary plate cannot rotate along the second rotating direction, so that the rotary angle of the rotary plate is correct when the powder aerosol administration device is used every time, misoperation cannot be caused, and the anti-misoperation function of the powder aerosol administration device is realized.
The specific angle described is 360 degrees per number of detent configurations.
Alternatively, the specific angle is 360 degrees/number of unidirectional opening slots.
Wherein said first rotational direction is administered from a powder spray the top of the device is viewed from above in a counterclockwise direction of rotation; the second rotation direction is a clockwise rotation direction when viewed from the top of the powder inhalation drug delivery device.
According to the powder inhalation dosing device provided by the technical scheme of the invention, the impact sound generated when the pawl structure passes through the one-way open slot is utilized to remind a user whether the rotation angle of the screw cap is in place, and the frequency of the impact sound is utilized to remind the user whether the rotation angle of the screw cap reaches a specified value.
Compared with the prior art, the invention has the advantages that:
1. the powder aerosol administration device is provided with an anti-misoperation unit, when the powder aerosol administration device is operated, the medicine can be correctly administrated only by rotating a specific angle, so that the condition of administration failure can be prevented, and the correct rotation angle is ensured when the medicine is used every time;
2. in the process that the screw cap of the powder aerosol administration device rotates for a specific angle, the change of knocking times and strength can be realized through the structural design, so that the powder aerosol administration device is suitable for administration of powder with different flowability;
3. through the implementation of the technical scheme, a user can be ensured to correctly use the powder aerosol administration device, and the accurate metering of the administration amount of the powder aerosol administration device every time can be ensured.
Drawings
FIG. 1 is a schematic view of the structure of the anti-misoperation unit of the present invention;
FIG. 2 is a schematic view of the top view of the anti-misoperation unit of the present invention;
FIG. 3 is a schematic structural view of the pawl construction of the present invention;
FIG. 4 shows an anti-misoperation unit a schematic diagram of a side view configuration;
FIG. 5 is a schematic view of the rotation allowing position of the anti-misoperation unit;
FIG. 6 is an enlarged view of the portion A of FIG. 5;
FIG. 7 is a schematic view of the rotation-disallowed position of the anti-misoperation unit;
fig. 8 is an enlarged view of the portion B in fig. 7.
In the figure, 1 is a lower shell, 1-1 is a one-way open slot, 2 is an anti-rotation part, 2-1 is an anti-rotation bulge, 2-2 is stressed teeth, 3 is a rotary table, 3-1 is a pawl arm, 3-2 is a pawl end part, 8 is a rotary cover, 12 is a vibration gear, 12-1 is force application teeth, and 13 is a transition wheel.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In fig. 1 to 4, the technical solution of the present invention provides an anti-misoperation unit for a powder aerosol administration device, the powder aerosol administration device comprises a flow channel assembly, a powder storage container and an administration metering assembly, specifically, the powder aerosol administration device comprises a lower housing 1, a rotary disc 3, a rotary cover 8 and a vibration gear 12, the outer part of the lower shell is provided with a rotary cover, the lower shell is internally provided with a rotary disc, a vibration gear is arranged below the rotary disc, the rotary disc is a quantitative dosing disc in a dosing metering assembly, when a user rotates the rotary cover, the rotary cover drives the rotary disc to rotate through the vibration gear, and the vibration gear simultaneously provides a vibration source for the rotary disc so as to realize the function of vibration dosing; the invention is characterized in that:
the powder aerosol administration device is characterized in that at least one-way open slot 1-1 is formed in the position, corresponding to the position of the rotary disc, on the inner wall of the lower shell.
At least one pawl structure is arranged at the outer edge of the turntable, the pawl structure is formed by a pawl arm 3-1 which engages the outer periphery of the turntable and a pawl end 3-2 with a downward extension (see fig. 3).
The pawl end is positioned on the same horizontal plane with the one-way open slot (see fig. 2).
Between the turntable and the vibration gear, a rotation preventing member 2, which is a cylindrical member (see fig. 1), is provided in a nested manner.
Anti-rotation protrusions 2-1 are arranged on the outer edge of the upper end of the anti-rotation part and at positions corresponding to the pawl end parts of the pawl structures on the outer edge of the rotary disc, and the pawl end parts of the pawl structures and the anti-rotation protrusions are arranged at intervals (see fig. 4).
The lower end of the anti-rotation part is provided with a stress tooth 2-2; the periphery of the vibration gear is provided with a force application tooth 12-1.
<xnotran> , , 13, ( 1 4 ). </xnotran>
As shown in fig. 1, the transition wheel is a rotating wheel with a folded edge, the folded edge has a convex-concave structure, the force application teeth 12-1 are just embedded into the convex structure folded edges of the rotating wheel, and the force application teeth 2-2 are just inserted into the concave structure folded edges of the rotating wheel.
In fig. 5 and 6, in the process that the cap is rotated along the first rotation direction, if the cap, the vibrating gear and the anti-rotation member are simultaneously rotated along the first rotation direction by a specific angle (for example, 60 degrees), and at this time, since the pawl structure is located at the gap of the anti-rotation protrusion of the anti-rotation member, the pawl of the rotating disc has a deformation space, then when the cap is rotated along the second rotation direction, the rotating disc can be driven to rotate along the second rotation direction.
In fig. 7 and 8, in the process that the screw cap rotates in the first rotation direction, if the screw cap, the vibration gear and the anti-rotation member do not rotate to the specific angle, the pawl structure of the rotary disk cannot be located at the gap position of the anti-rotation protrusion of the anti-rotation member, so that the pawl structure has no space for deformation, and then when the screw cap rotates in the second rotation direction, the rotary disk cannot rotate in the second rotation direction, so that the rotation angle of the rotary disk is correct every time the aerosol administration device is used, and misoperation cannot be caused.
In the process that the spiral cover rotates along the first rotating direction, because the pawl structure is clamped in the one-way open slot, the rotary plate does not rotate in the process that the spiral cover rotates along the first rotating direction, and only the vibration gear and the anti-rotation piece rotate synchronously along the first rotating direction along with the spiral cover.
Wherein the first rotational direction is viewed as a counterclockwise rotational direction from the top of the powder aerosol delivery device; the second rotation direction is viewed as a clockwise rotation direction from the top of the powder inhalation delivery device.
The specific angle described above is 360 degrees per number of detent configurations; alternatively, the specific angle described above is 360 degrees/number of unidirectional open slots.
The invention also provides an anti-misoperation method of the powder aerosol dosing device, wherein a rotary cover is arranged outside the powder aerosol dosing device, a rotary disc is arranged in a lower shell, a vibrating gear is arranged below the rotary disc, the rotary disc is a quantitative dosing disc in a dosing metering component, when a user rotates the rotary cover, the rotary cover drives the rotary disc to rotate through the vibrating gear, and the vibrating gear simultaneously provides a vibrating source for the rotary disc so as to realize the function of vibrating dosing; the invention is characterized in that:
the outer edge of the turntable of the powder aerosol administration device is provided with at least one pawl structure;
an anti-rotation part with an anti-rotation bulge is arranged between the turntable and the vibration gear;
at least one unidirectional open slot is arranged on the inner wall of the lower shell;
when a user rotates the rotary cover along a first rotating direction, the rotary cover drives the vibration gear, the vibration gear and the rotary plate generate relative motion, and the vibration gear moves up and down under the action of the spring to provide a vibration source for the rotary plate and the outer medicine barrel so as to realize the function of vibration medicine feeding;
<xnotran> , , , , "" ; </xnotran>
The first rotating direction is opposite to the second rotating direction;
the anti-misoperation method realizes the anti-reverse rotation function of the turntable through the matching and interaction of the pawl structure, the anti-rotation part and the one-way open slot, reminds a user whether the rotation of the screw cap is in place or not by utilizing the matching of the pawl structure and the one-way open slot, ensures that the screw cap of the powder aerosol administration device can correctly dose by rotating a specific angle (for example, 60 degrees), prevents the condition of administration failure, and further realizes the anti-misoperation function of the powder aerosol administration device.
In the process that the screw cap rotates along the first rotating direction, if the screw cap, the vibrating gear and the anti-rotation member rotate at a specific angle along the first rotating direction at the same time, at this time, because the pawl structure is located at the gap part of the anti-rotation protrusion of the anti-rotation member, the pawl of the rotating disc has a deformation space, and then when the screw cap rotates along the second rotating direction, the rotating disc can be driven to rotate along the second rotating direction (see fig. 5 and 6).
If the rotary cover, the vibration gear and the anti-rotation part do not rotate to the specific angle in the process that the rotary cover rotates along the first rotating direction, the pawl structure of the rotary plate cannot be positioned at the gap part of the anti-rotation protrusion of the anti-rotation part (shown in figures 7 and 8), so that the pawl structure has no deformation space, and then when the rotary cover rotates along the second rotating direction, the rotary plate cannot rotate along the second rotating direction, so that the rotating angle of the rotary plate is correct when the powder aerosol administration device is used every time, misoperation cannot be generated, and the anti-misoperation function of the powder aerosol administration device is realized.
Wherein the specific angle is 360 degrees per number of detent structures.
Alternatively, the specific angle is 360 degrees/number of the one-way open slots.
The first rotating direction is viewed as a counterclockwise rotating direction from the top of the powder inhalation drug delivery device; the second rotational direction is viewed as a clockwise rotational direction as viewed from above the top of the powder aerosol delivery device.
In the technical scheme, the powder inhalation dosing device reminds a user of whether the rotation angle of the screw cap is in place by utilizing the impact sound generated when the pawl structure passes through the one-way open slot, and reminds the user of whether the rotation angle of the screw cap reaches a specified value or not through the frequency of the impact sound.
Because the anti-misoperation unit is arranged in the powder aerosol administration device, when the powder aerosol administration device is operated, the powder aerosol administration device needs to rotate a specific angle to correctly administer the medicament, so that the condition of administration failure can be prevented, the correct rotation angle in each use is ensured, and the operation of a user is more convenient; simultaneously, owing to set up in the powder inhalation device of dosing and prevent mistake operating unit, rotating a specific angle in-process, can realize knocking the change of number of times and intensity through this structural design to be fit for the dosing of different mobile performance powder.
The invention can be widely applied to the design and manufacture fields of powder aerosol administration devices with various specifications.
Claims (12)
1. An anti-misoperation unit of a powder aerosol dosing device comprises a lower shell, a rotary disc, a rotary cover and a vibrating gear, wherein the rotary cover is arranged outside the lower shell, the rotary disc is arranged in the lower shell, the vibrating gear is arranged below the rotary disc, the rotary disc is a quantitative dosing disc in a dosing metering component, when a user rotates the rotary cover, the rotary cover drives the rotary disc to rotate through the vibrating gear, and the vibrating gear simultaneously provides a vibrating source for the rotary disc so as to realize the function of vibrating dosing; it is characterized in that the method comprises the following steps:
the powder aerosol administration device is characterized in that at least one-way open slot is formed in the position, corresponding to the position of the rotary disc, on the inner wall of the lower shell;
at least one pawl structure is arranged on the outer edge of the turntable, the pawl structure consists of a pawl arm connected with the outer edge of the rotary disc and a pawl end part positioned at one end of the pawl arm;
the end part of the pawl and the one-way open slot are positioned on the same horizontal plane;
an anti-rotation part is sleeved between the turntable and the vibration gear, and the anti-rotation part is a cylindrical component;
anti-rotation bulges are arranged at the positions, corresponding to the pawl end parts of the pawl structures on the outer edge of the turntable, of the outer edge of the upper end of the anti-rotation part;
the pawl end part of the pawl structure is arranged at intervals with the anti-rotation bulge;
the lower end of the anti-rotation part is provided with a stressed tooth;
force application teeth are arranged on the periphery of the vibration gear;
force application teeth of the vibration gear and force application teeth of the anti-rotation part are arranged at intervals in a crossed mode, and a transition wheel is arranged between the force application teeth and the force application teeth to form a rotating force transmission gear kinematic pair;
the transition wheel is a rotating wheel with a folded edge, the folded edge is of a convex-concave structure, the force application teeth are just embedded into the folded edge of the convex structure of the rotating wheel, and the force application teeth are just inserted into the folded edge of the concave structure of the rotating wheel;
the one-way open slot, the pawl structure, the anti-rotation part and the rotating force transmission gear kinematic pair form an anti-misoperation unit of the powder aerosol dosing device;
when a user rotates the rotary cover to a specific angle along a first rotating direction, the rotary cover drives the vibrating gear, the rotary plate is not driven by the vibrating gear, the vibrating gear and the rotary plate move relatively, and the vibrating gear moves up and down under the action of the spring to provide a vibration source for the rotary plate and the outer medicine barrel so as to realize the function of vibration administration;
when the user rotates the cap in the second rotation direction to a specific angle, the cap drives the vibration gear, the vibration gear drives the turntable to rotate, at the moment, a medicine groove filled with medicine powder on the turntable rotates to a position for preparing to deliver the medicine from the lower part of the medicine cylinder, so that one-time quantitative medicine supply is realized;
the first rotating direction is opposite to the second rotating direction.
2. The anti-misoperation unit for powder inhalation delivery device according to claim 1, wherein the unit is characterized in that
During the rotation of the screw cap along the first rotation direction, if the screw cap, the vibration gear and the anti-rotation member are simultaneously rotated along the first rotation direction by a specific angle, at the moment, the pawl structure is positioned at the clearance part of the anti-rotation bulge of the anti-rotation part, and the pawl of the turntable has a deformation space, so that the turntable can be driven to rotate along the second rotation direction when the rotary cover rotates along the second rotation direction;
in the process that the rotary cover rotates along the first rotating direction, if the rotary cover, the vibrating gear and the anti-rotation part do not rotate to the specific angle, the pawl structure of the rotary plate cannot be positioned at the gap part of the anti-rotation part anti-rotation bulge, so that the pawl structure has no deformation space, and then when the rotary cover rotates along the second rotating direction, the rotary plate cannot rotate along the second rotating direction, so that the rotating angle of the rotary plate is correct when the powder aerosol administration device is used every time, and misoperation cannot be caused.
3. The anti-misoperation unit for the powder inhalation delivery device according to claim 1, wherein during the rotation of the cap in the first rotational direction, since the detent structure is caught in the one-way open groove, then at the rotatory in-process carousel irrotational of spiral cover along first direction of rotation, only vibration gear, prevent that the gyration spare follows spiral cover along first direction of rotation synchronous revolution.
4. The anti-misoperation unit for the powder aerosol delivery device according to claim 1, 2 or 3, wherein the first rotational direction is viewed as a counterclockwise rotational direction from the top of the powder aerosol delivery device; the second rotational direction is viewed as a clockwise rotational direction as viewed from above the top of the powder aerosol delivery device.
5. The anti-misoperation unit for the powder inhalation delivery device according to claim 1, 2 or 3, wherein the specific angle is 360 degrees per the number of detent structures.
6. The anti-misoperation unit for the powder inhalation delivery device according to claim 1, 2 or 3, wherein the specific angle is 360 degrees per the number of the one-way open grooves.
7. An anti-misoperation method for the powder inhalation drug delivery device according to claim 1, wherein a rotary cover is arranged outside the powder inhalation drug delivery device, a rotary disc is arranged in a lower shell, a vibration gear is arranged below the rotary disc, the rotary disc is a quantitative dosing disc in the dosing metering assembly, when a user rotates the rotary cover, the rotary cover drives the rotary disc to rotate through the vibration gear, and the vibration gear simultaneously provides a vibration source for the rotary disc so as to realize the function of vibration dosing; the method is characterized in that:
the outer edge of the turntable of the powder aerosol administration device is provided with at least one pawl structure;
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At least one unidirectional open slot is arranged on the inner wall of the lower shell;
when a user rotates the screw cap along a first rotating direction, the screw cap drives the vibrating gear, the vibrating gear and the turntable move relatively, and the vibrating gear moves up and down under the action of the spring to provide a vibration source for the turntable and the outer medicine barrel so as to realize the function of vibration administration;
when a user rotates the screw cap along a second rotation direction, the screw cap drives the vibration gear, the vibration gear drives the rotary disc to rotate, and at the moment, a medicine groove filled with medicine powder on the rotary disc rotates to a position ready for medicine delivery from the lower part of the medicine cylinder, so that one-time quantitative medicine supply is realized;
the first rotation direction thereof and the direction of the second rotation direction is opposite;
the anti-misoperation method realizes the function of preventing the reverse rotation of the turntable through the matching and interaction of the pawl structure, the anti-rotation piece and the one-way open slot, and reminds a user whether the rotation of the rotary cover is in place or not by utilizing the matching of the pawl structure and the one-way open slot, whether the rotation angle reaches the specified value or not, ensures that the powder aerosol administration device can be correctly administered only by rotating the screw cap at a specific angle, the condition of failure of dosing is prevented, and the anti-misoperation function of the powder aerosol dosing device is further realized.
8. The method for preventing erroneous operation of a powder inhalation delivery device according to claim 7, wherein if the cap, the vibration gear and the anti-rotation member are simultaneously rotated in the first rotation direction by a specific angle while the cap is rotated in the first rotation direction, the pawl of the rotary plate has a space for deformation because the pawl structure is located in a gap portion of the anti-rotation protrusion of the anti-rotation member, and then the rotary plate is driven to rotate in the second rotation direction while the cap is rotated in the second rotation direction;
if the rotary cover, the vibration gear and the anti-rotation part do not rotate to the specific angle in the process that the rotary cover rotates along the first rotation direction, the pawl structure of the rotary plate cannot be located at the gap part of the anti-rotation part anti-rotation bulge, so that the pawl structure does not have a deformation space, and then when the rotary cover rotates along the second rotation direction, the rotary plate cannot rotate along the second rotation direction, so that the rotary plate rotating angle is correct when the powder aerosol administration device is used every time, misoperation cannot be caused, and the anti-misoperation function of the powder aerosol administration device is realized.
9. The method for preventing erroneous operation of the powder aerosol drug delivery device according to claim 7 or 8, it is characterized in that the specific angle is 360 degrees per number of pawl structures.
10. The method for preventing erroneous operation of a powder inhalation drug delivery device according to claim 7 or 8, wherein the specific angle is 360 degrees/number of one-way open grooves.
11. The method for preventing erroneous operation of a powder aerosol delivery device according to claim 8, wherein the first rotational direction is a counterclockwise rotational direction viewed from the top of the powder aerosol delivery device; the second rotational direction is viewed as a clockwise rotational direction as viewed from above the top of the powder aerosol delivery device.
12. The method for preventing erroneous operation of a dry aerosol drug delivery device according to claim 7, wherein the dry aerosol drug delivery device reminds a user of whether the rotation angle of the cap is in place by using an impact sound generated when the pawl structure passes through the one-way open groove, and reminds the user of whether the rotation angle of the cap reaches a predetermined value by the number of times of the impact sound.
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| CN106075677B (en) * | 2016-08-08 | 2022-06-10 | 中山市美捷时包装制品有限公司 | Actuating mechanism of dry powder inhalation device |
| CN108837298B (en) * | 2018-06-21 | 2020-05-22 | 浙江大学 | Subcutaneous medicine sustained-release devices |
| CN110250958A (en) * | 2019-04-16 | 2019-09-20 | 青岛科技大学 | A kind of rotary quantitative salt cellar |
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| FR2883400B1 (en) * | 2005-03-16 | 2007-06-15 | Valois Sas | DOSAGE INDICATING DEVICE FOR DISPENSING FLUID OR PULVERULENT PRODUCTS |
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