CN109675153B - Dose indicator for inhaler - Google Patents
Dose indicator for inhaler Download PDFInfo
- Publication number
- CN109675153B CN109675153B CN201710979232.XA CN201710979232A CN109675153B CN 109675153 B CN109675153 B CN 109675153B CN 201710979232 A CN201710979232 A CN 201710979232A CN 109675153 B CN109675153 B CN 109675153B
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- China
- Prior art keywords
- wheel disc
- digital wheel
- container
- bottom shell
- unit digital
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007921 spray Substances 0.000 claims abstract description 32
- 239000003814 drug Substances 0.000 claims abstract description 9
- 239000003595 mist Substances 0.000 claims abstract description 5
- 210000003781 tooth socket Anatomy 0.000 claims description 4
- 239000000443 aerosol Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0001—Details of inhalators; Constructional features thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0065—Inhalators with dosage or measuring devices
- A61M15/0068—Indicating or counting the number of dispensed doses or of remaining doses
- A61M15/007—Mechanical counters
- A61M15/0071—Mechanical counters having a display or indicator
- A61M15/0075—Mechanical counters having a display or indicator on a disc
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
- A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The invention discloses a dose indicating device of an inhaler, which comprises a bottom shell and a container for storing a certain amount of medicine mist, wherein a spray head is arranged at one end of the bottom shell, the other end of the bottom shell is open, a spray cylinder with the lower end communicated with the spray head is arranged on the bottom shell, the upper end of the spray cylinder extends towards the opening, a quantitative valve is arranged at the lower end of the container, the lower end of a valve rod of the quantitative valve is fixed in the upper end of the spray cylinder, the dose indicating structure comprises a fixed basket which is coaxially arranged with the spray cylinder and can move along the spray cylinder axis together with the container, a unit digital wheel disc and a ten digital wheel disc are sequentially and rotatably arranged in the fixed basket along the spray cylinder axis, and the unit digital wheel disc can rotate relative to the ten digital wheel disc and rotate in the process that the container is pressed. The dose indicating device adopts a mechanical structure to indicate the dose, and has simple structure and reliable indication.
Description
Technical Field
The invention relates to the field of inhalers, in particular to a dose indicator device of an inhaler.
Background
Pressurized metered dose inhalers typically comprise an aerosol container equipped with a metered dose counting device and an actuator housing, the inhaler typically comprising: the nozzle, valve stem of the metering valve, and user ports, such as the mouthpiece and optionally but generally used cylindrical housing, are used to house the aerosol container. The aerosol container contains a pressurized aerosol formulation, which typically includes a liquefied propellant and a drug, and if desired or needed, one or more excipients, such as a surfactant or solvent. The medicament may be in the form of a suspension or solution in an aerosol formulation and the metered dose device typically includes a valve stem which moves inwardly relative to the metering device to eject a metered dose of the aerosol formulation. The metering valve is inserted into the actuator housing with the valve stem engaged with the nozzle block of the actuator housing. In use, the patient places their lips around the mouthpiece and presses against the bottom of the aerosol container so that the container moves relative to the valve stem to eject a dose of medicament through the mouthpiece.
In the prior art, some dose indicators are designed to require electronics that increase cost, deter users from washing the device, may have battery life issues, and in the case of dose counters, their use may be difficult to obtain regulatory approval. Furthermore, many of these dose indicators are complex, requiring a large number of small mechanical parts, which results in high costs, assembly difficulties, and the need for complex dimensional tolerances. In some cases, it is desirable to redesign the dose indicator, which has been the standard shape and size of a metered dose aerosol inhaler, to a significantly larger, more bulky and more cumbersome shape. Furthermore, the character size and definition of the display of such devices may be poor, making it difficult for a user to read them. Still other indicators are designed on the top of the driver, the engagement of the internal teeth of the inner indicating unit with the indicating element being inclined with respect to the rotation axis of the indicating unit, and at the same time, the inner part contains more parts, the structure is more complex, and the assembly is also relatively troublesome. Still others have been designed with the indicator at the bottom, but the digital wheel requires a certain angle and has relatively many parts and is complex in the design process. Some are designed as separate counting assemblies, which are not integrated in the drive, resulting in a corresponding increase in production and matching costs.
Disclosure of Invention
The invention mainly aims to provide a dose indicating device of an inhaler, wherein the indicating structure is positioned in the inhaler to form an integrated counting indicating device, and the device has the characteristics of simplicity in operation, reliability in counting and accuracy.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides an inhaler's dose indicator, the inhaler includes bottom casing and is used for depositing the container of a certain amount of medicine fog, the one end of bottom casing is provided with the shower nozzle, and the other end opening is provided with the spray tube of lower extreme and shower nozzle intercommunication on the bottom casing, the upper end of spray tube extends towards the opening, the lower extreme of container is provided with the ration valve, the valve rod lower extreme of ration valve is fixed in the upper end of spray tube, a serial communication port, dose indicator structure includes with the coaxial fixed basket that sets up of spray tube and can follow the spray tube axis with the container and remove in the fixed basket along spray tube axis rotationally is provided with unit number rim plate and ten digit rim plate in proper order, and unit number rim plate can drive ten digits rim plate rotation ten digits after rotating the distance between the adjacent digit on the ten digit number rim plate.
Preferably, the upper end face of the tens digital wheel disc is rotatably abutted against the lower end face of the quantitative valve, and the lower end face of the tens digital wheel disc is rotatably abutted against the bottom face of the fixed basket.
A dose indicator device for an inhaler according to claim 2, wherein two sets of numbers 0-9 are circumferentially provided on the outer periphery of the unit number disc, and a set of numbers 0-N are circumferentially provided on the outer periphery of the tens number disc, wherein N is a number greater than 1, and the distances between adjacent numbers on the unit number disc and the tens number disc are respectively the same.
Preferably, two groups of driven dials are arranged on the outer surface of the unit digital wheel disc along the axis of the unit digital wheel disc, the circumference direction of each group of driven dials is uniformly arranged, the distance between adjacent driven dials of each group of driven dials is equal to the distance between adjacent digits on the unit digital wheel disc, the two groups of driven dials are arranged in a staggered manner, the driven dials are all provided with inclination angles, the inclination angles of the two groups of driven dials are oppositely arranged, a driving dial is arranged on the bottom shell, the driving dial is provided with symmetrically arranged inclined side faces along the axis direction of the unit digital wheel disc, the inclined side faces are gradually close along the rotation direction of the unit digital wheel disc, and the inclined side faces can be selectively jointed with the driven dials on the corresponding side.
Preferably, the driving dials have 1 or more, and when plural, the distance between adjacent driving dials on the circumference is equal to an integer multiple of adjacent driven dials.
Preferably, the active shifting block is integrally formed with or detachably connected to the bottom housing.
Preferably, two tooth sockets which are 180 degrees and extend along the axis direction of the unit digital wheel disc are arranged on the inner edge of the unit digital wheel disc, tooth columns matched with the tooth sockets are rotatably arranged in the fixed basket, inner teeth matched with the tooth columns are arranged on the inner surface of the ten-bit digital wheel disc, and the number of the inner teeth is at least equal to the number on the ten-bit digital wheel disc.
Preferably, an annular groove is formed in one end of the container, close to the dosing valve, and a plurality of clamping structures matched with the annular groove are formed in the inner surface of the fixed basket.
An inhaler comprising the structure of the dose indicator device.
Compared with the prior art, the invention has the beneficial effects that:
the structure of the dose indicator is integrated in the inhaler and positioned in the driver to form an integrated counting indicator, and the structure of the dose indicator has the characteristics of simplicity, reliability and accuracy relative to an electronic indicator, and has low production cost; and the parallel double-digital wheel disk is sleeved at the end position of the metered dose valve of the inhaler, so that the user can easily read the metered dose valve, and the metered dose valve is not easy to damage or lose the counting device.
Drawings
FIG. 1 is a cross-sectional view of a preferred embodiment according to the present invention
FIG. 2 is a block diagram of the bottom housing in accordance with a preferred embodiment of the present invention
FIG. 3 is an enlarged view at A according to a preferred embodiment of the invention
FIGS. 4-6 are block diagrams of a fixed basket according to a preferred embodiment of the present invention
FIG. 7 is a block diagram of a bit digital wheel in accordance with a preferred embodiment of the present invention
FIG. 8 is a block diagram of a tens wheel in accordance with a preferred embodiment of the present invention
FIG. 9 is a block diagram of a tooth post according to a preferred embodiment of the present invention
FIG. 10 is an exploded view of an inhaler according to a preferred embodiment of the present invention
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
A dose indicator device for an inhaler as shown in figures 1 to 10, the inhaler comprising a housing and a container 5 for holding a quantity of a medicament mist mounted in the housing, the housing comprising a base housing 11 with a spray head 112, a middle housing 12 having a lower end engaged with an upper end of the base housing 11, a transparent pressure cap 13 having a lower end engaged with an upper end of the middle housing 12, the upper end of the transparent pressure cap 13 being closed. A spray cylinder 114 extending up and down is provided in the bottom housing 11, and the medicine mist is sprayed from one end of the spray cylinder 114 near the spray head 112. The lower end of the container 5 is provided with a dosing valve 52, and the lower end of the dosing valve 52 is inserted into the end of the spray cylinder 114 away from the spray head 112. The container 5 can move downwards relative to the quantitative valve 52 when being pressed, and a certain amount of medicine mist is sprayed out of the quantitative valve 52; the container 5 is released and the container 5 is pushed back into place by the dosing valve 52. The dosing valve 52 is of a prior art and its working principle will not be described in detail.
The dose indicating structure comprises a fixed basket 2 coaxially positioned in a bottom shell 11 with a spray cylinder 114, wherein a plurality of clamping plates 24 are uniformly arranged at the upper end in the fixed basket 2 along the circumferential direction, an annular groove 51 is arranged at the position where the container 5 is connected with a quantitative valve 52, and the clamping plates 24 can be clamped into the annular groove 51 so as to fix the fixed basket 2 and enable the fixed basket 2 to move up and down along with the container 5.
The inside of fixed basket 2 is provided with rather than coaxial ring section of thick bamboo 21, and on ring section of thick bamboo 21 from bottom to top coaxial cover is equipped with unit digit rim plate 3, ten digit rim plate 4 in proper order, and unit digit rim plate 3 and ten digit rim plate 4 can rotate relatively and can rotate relatively ring section of thick bamboo 21. Two groups of numbers 0-9 are arranged on the unit number wheel 3, the two groups of numbers are uniformly arranged on the same circumference, and the numbers on the unit number wheel 3 are distributed on the whole circumference. The tens digit wheel 4 is provided with a group of digits from 0 to 20, the digits on the tens digit wheel 4 can occupy part of the circumference or the whole circumference, and the distances between adjacent digits are the same. Thus, every 10 digits are rotated by the unit digital wheel 3, the ten digits are rotated by one digit by the ten digits wheel 4, and the final count value can reach 200.
An upper driven shifting block 32 and a lower driven shifting block 32 are arranged on the unit digital wheel disc 3, the number of each driven shifting block 32 is 20, the number of the driven shifting blocks is the same as that of the digits on the unit digital wheel disc 3, and the distance between adjacent shifting blocks in each driven shifting block 32 is equal to the distance between adjacent digits on the unit digital wheel disc 3.
The upper and lower driven dials 32 are staggered, and a downward inclination 321 is provided on the upper driven dial 32, and an upward inclination 321 is provided on the lower driven dial 32. At least one active shifting block 111 is arranged on the bottom shell 11, two symmetrically inclined side faces are arranged on the active shifting block 111 along the axis direction of the unit digital wheel disc 3, the distance between the two side faces is gradually reduced along the rotation direction of the unit digital wheel disc 3, namely, the upper side face is inclined downwards along the rotation direction of the unit digital wheel disc 3, and the lower side face is inclined upwards along the rotation direction of the unit digital wheel disc 3, so that when a container moves downwards, the unit digital wheel disc 3 is driven to move downwards through the fixed basket 2, the upper inclined angle 321 abuts against the upper side face and moves downwards continuously, and the active shifting block 111 can not rotate under the action of the inclined side face to enable the unit digital wheel disc 3 to rotate towards the inclined direction; when the container 5 is loosened, the driven shifting blocks 32 are positioned right above one of the driven shifting blocks 32 below at the moment, after the container 5 is loosened, the fixed basket 2 drives the unit digital wheel disc 3 to move upwards, the inclined angle of the driven shifting block 32 below is propped against the side face below, under the action of inclination, the unit digital wheel disc 3 rotates towards the inclined direction of the side face below, through one-time pressing and loosening, two rotations of the unit digital wheel disc 3 are realized, the distance of each rotation is 1/2 of the distance of adjacent numbers, and one-time spraying rotation of one digit is realized.
A cutout 22 is provided in the ring drum 21, and a tooth post 23 having an axis parallel to the axis of the unit digital wheel 3 is rotatably provided at the position of the cutout 22. Two tooth grooves 31 meshed with teeth on the tooth post 23 are arranged on the inner edge of the unit digital wheel disc 3, and the two tooth grooves 31 are arranged at 180 degrees in the circumferential direction, so that the tooth post 23 is driven to rotate once every 180 degrees of rotation of the unit digital wheel disc 3.
The inner teeth 41 are arranged on the inner edge of the tens digital wheel disc 4, the inner teeth 41 comprise at least 20 teeth extending along the axis of the tens digital wheel disc, and the tooth post 23 is also meshed with the inner teeth 41, so that when the tens digital wheel disc 3 rotates 180 degrees, the tooth post 23 is driven to rotate by one tooth, the tooth post 23 drives the inner teeth 41 to rotate by one tooth, and further, the tens digital wheel disc rotates by 10 numbers, and the tens digital wheel disc rotates by 1 number. To ensure that the internal teeth 41 rotate one tooth and the tens wheel 4 rotates one number, the pitch of the internal teeth 41 is the same as the distance between adjacent numbers on the tens wheel 4.
Specifically, the lower end surface of the unit digital wheel disc 3 abuts against the bottom surface of the fixed basket 2, and the upper end surface of the tens digital wheel disc 4 abuts against the lower end surface of the quantitative valve 52, so that the unit digital wheel disc 3 and the tens digital wheel disc 4 can move up and down together with the fixed basket 2 and the container 5.
The detachable spray cover 113 is sleeved on the spray head 112, and when the spray head is used, the spray cover 113 is taken down, and the spray head can be protected and dustproof through the spray cover 113. A viewing window corresponding to the display number is provided in the bottom case 11 to display the current count value.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The inhaler comprises a bottom shell and a container for storing a certain amount of medicine mist, wherein a spray head is arranged at one end of the bottom shell, the other end of the bottom shell is open, a spray cylinder with the lower end communicated with the spray head is arranged on the bottom shell, the upper end of the spray cylinder extends towards the opening, a quantitative valve is arranged at the lower end of the container, and the lower end of a valve rod of the quantitative valve is fixed in the upper end of the spray cylinder;
the upper end face of the tens digital wheel disc is rotatably abutted against the lower end face of the quantitative valve, and the lower end face of the units digital wheel disc is rotatably abutted against the bottom face of the fixed basket;
two groups of numbers 0-9 are arranged on the outer edge of the unit digital wheel disc along the circumferential direction, a group of numbers 0-N are arranged on the outer edge of the tens digital wheel disc along the circumferential direction, wherein N is a number larger than 1, and the distances between adjacent numbers on the unit digital wheel disc and the tens digital wheel disc are respectively the same;
the outer surface of the unit digital wheel disc is provided with an upper driven shifting block and a lower driven shifting block which are arranged along the axis of the unit digital wheel disc, the circumference direction of each driven shifting block is uniformly arranged, the distance between adjacent driven shifting blocks of each driven shifting block is equal to the distance between adjacent numbers on the unit digital wheel disc, the driven shifting blocks are arranged in a staggered mode, each driven shifting block has an inclination angle, the inclinations of the two driven shifting blocks are oppositely arranged, the bottom shell is provided with a driving shifting block, the driving shifting block is provided with two symmetrically arranged inclined side surfaces along the axis direction of the unit digital wheel disc, the two inclined side surfaces are gradually close along the rotation direction of the unit digital wheel disc, and the inclined side surfaces can be selectively jointed with the driven shifting blocks on the corresponding side;
two tooth sockets which are 180 degrees and extend along the axis direction of the unit digital wheel disc are arranged on the inner edge of the unit digital wheel disc, a tooth post matched with the tooth socket is rotatably arranged in the fixed basket, inner teeth matched with the tooth post are arranged on the inner surface of the ten digital wheel disc, and the number of the teeth of the inner teeth is at least equal to the number on the ten digital wheel disc;
an annular groove is formed in one end, close to the quantitative valve, of the container, and a plurality of clamping structures matched with the annular groove are arranged on the inner surface of the fixed basket.
2. A dose indicating structure for an inhaler as claimed in claim 1, wherein the driving dials have 1 or more, and when plural, adjacent driving dials are circumferentially spaced apart by an integer multiple of adjacent driven dials.
3. A dose indicating structure for an inhaler as claimed in claim 2, wherein the active dial is integrally formed with or detachably connected to the base housing.
4. An inhaler comprising a dose indicating structure as claimed in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979232.XA CN109675153B (en) | 2017-10-19 | 2017-10-19 | Dose indicator for inhaler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979232.XA CN109675153B (en) | 2017-10-19 | 2017-10-19 | Dose indicator for inhaler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109675153A CN109675153A (en) | 2019-04-26 |
| CN109675153B true CN109675153B (en) | 2024-01-02 |
Family
ID=66183872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710979232.XA Active CN109675153B (en) | 2017-10-19 | 2017-10-19 | Dose indicator for inhaler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109675153B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112245726A (en) * | 2020-11-03 | 2021-01-22 | 湘潭大学 | Rotary controllable type aerosol inhaler |
| CN117205412B (en) * | 2023-11-07 | 2024-02-13 | 正大天晴(广州)医药有限公司 | Dose indicator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6076521A (en) * | 1994-11-29 | 2000-06-20 | Astra Aktiebolag | Dose indicating device |
| WO2007077450A2 (en) * | 2006-01-04 | 2007-07-12 | 42 Technology Limited | Dose counter with an odometer type display |
| CN207871234U (en) * | 2017-10-19 | 2018-09-18 | 亿索智能科技（上海）有限公司 | A kind of dose indicating device of inhalator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2372543B (en) * | 2001-02-23 | 2003-08-20 | Bespak Plc | Dosage counting devices |
| GB2372541B (en) * | 2001-02-23 | 2003-08-20 | Bespak Plc | Dosage counting devices |
| US7322352B2 (en) * | 2002-09-21 | 2008-01-29 | Aventis Pharma Limited | Inhaler |
| US8517019B2 (en) * | 2006-03-03 | 2013-08-27 | 3M Innovative Properties Company | Method and apparatus for metered dose dispensing |
| GB0920499D0 (en) * | 2009-11-23 | 2010-01-06 | 3M Innovative Properties Co | Dose counter |
-
2017
- 2017-10-19 CN CN201710979232.XA patent/CN109675153B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6076521A (en) * | 1994-11-29 | 2000-06-20 | Astra Aktiebolag | Dose indicating device |
| WO2007077450A2 (en) * | 2006-01-04 | 2007-07-12 | 42 Technology Limited | Dose counter with an odometer type display |
| CN207871234U (en) * | 2017-10-19 | 2018-09-18 | 亿索智能科技（上海）有限公司 | A kind of dose indicating device of inhalator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109675153A (en) | 2019-04-26 |
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