CN106667611A - Electric toothbrush and manufacture method of brush head - Google Patents
Electric toothbrush and manufacture method of brush head Download PDFInfo
- Publication number
- CN106667611A CN106667611A CN201710001118.XA CN201710001118A CN106667611A CN 106667611 A CN106667611 A CN 106667611A CN 201710001118 A CN201710001118 A CN 201710001118A CN 106667611 A CN106667611 A CN 106667611A
- Authority
- CN
- China
- Prior art keywords
- brush
- electric toothbrush
- bristle
- bristle face
- face
- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
- A46B9/045—Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Brushes (AREA)
Abstract
The invention relates to an electric toothbrush and a manufacture method of a brush head; the electric toothbrush comprises a drive motor, a power source, a control device and a brush head and is characterized in that the brush head is arc in shape and may be kept in oral cavity, the top and bottom of the brush head are each provided with a semi-enclosed bristle face, and each bristle face is provided with an inner tooth bristle face, an outer tooth bristle face and an occlusion bristle face, with each face having blocking bundles. The electric toothbrush is capable of cleaning upper jaw teeth and lower jaw teeth at the same time. The invention also provides the manufacture method of the brush head. The toothbrush provided herein is higher in efficiency and convenient to operate, confirms to the physiological structure of a human body and is capable of correcting bad brushing action to avoid tooth injury.
Description
Technical field：
The present invention relates to a kind of electric toothbrush, more specifically to one kind can be positioned in oral cavity simultaneously to maxillary teeth and
The electric toothbrush that mandibular teeth is cleaned simultaneously, further relates to the manufacture method of brush, belongs to field of oral care.
Background technology：
Because electric toothbrush has efficient advantage than conventional manual toothbrushes, increasingly by consumers welcomed.
Current electric toothbrush and traditional manual toothbrush, its head toothbrushes and teeth contact area are smaller, above head toothbrushes
Plant hair be typically all it is flat, every time can only effective two or three tooth of scrubbing brush because adult normal has 32 teeth, so in fact
Brushing efficiency is very low, even if wherein there is a kind of electric toothbrush of rotational head to there is also same problem.
Due to tooth, its axis is generally vertical physiological structure, and every interdental gap needs toothbrush to move up and down
Could effectively clean foreign matter therein, and the motion mode of the drive toothbrush of arm and wrist due to many people and incorrect,
In the course of time tooth can be caused to damage.
In addition, need to coordinate the shape of dental arch constantly to convert gesture during brushing teeth, so to the people of limb movement disturbance
Scholar causes larger inconvenience.
The content of the invention：
For the deficiency of technology, the present invention provides a kind of in hgher efficiency, more can be time-consuming, easy to operate, and can correct not
Good brushing action is so as to avoid the toothbrush of injury of teeth.
The present invention is for the solution technical scheme that is used of prior art problem：
Wherein：Electric toothbrush includes motor, power supply, control device and brush, it is characterised in that：Brush is in circular arc and can
It is contained in oral cavity, respectively there is the bristle face of semi-surrounding up and down along head shapes.
Wherein：Described circular arc is point circle, square circular, oval or its combination.
Wherein：Bristle face has multiple internal tooth bristle faces, multiple external tooth bristle faces, multiple occlusion bristle face respectively, and divides
There is not plant pieces.
Wherein：The bristle face of semi-surrounding refer to plant pieces end take the shape of the letter U and（Or）V-arrangement.
Wherein：Brush has elastomer.
Wherein：The length of run of brush center line is 70 to 130 millimeters.
Wherein：Control device refers to switch or the control circuit board with switch.
Wherein：Brush is connected by connecting rod with motor, and motor can drive brushhead motion by connecting rod.
Wherein：Under brush top view state, bristle face center line wherein some brush positioned at lower brush of upper brush
The outside of hair side center line.
Electric toothbrush of the present invention, brush can be obtained by the manufacture method with order below：
One：Brush has the brush body that metal clips is stamped or cut out, and its circular arc lateral surface and medial surface are arranged with solely
Vertical ear,
Two：Brush body is positioned in mould, the ear on brush body or local parcel plastics is made by injection,
Three：Plant hair is carried out to brush parcel plastics position and obtains hairbrush block,
Four：The bristle face that bending obtains semi-surrounding is carried out to ear.
Electric toothbrush of the present invention, brush can be obtained by the manufacture method with order below：
One：Brush has the brush body that metal clips is stamped or cut out, and its circular arc lateral surface and medial surface are arranged with solely
Vertical ear；
Unit of plastic to being molded carries out plant hair and obtains hairbrush block,
Two：By hairbrush it is packaged enter brush body on ear,
Three：The bristle face that bending obtains semi-surrounding is carried out to ear.
The beneficial effects of the present invention are：It is in hgher efficiency the invention provides one kind, more can be time-consuming, it is easy to operate,
Meet human physiological structure, and bad brushing action can be corrected so as to avoid the electric toothbrush of injury of teeth.
Figure of description：
Fig. 1 schematic perspective views of the invention；
Fig. 2 brush U-shaped position schematic cross-sections of the present invention；
Fig. 3 brush V-arrangement position schematic cross-sections of the present invention；
Fig. 4 brush V-arrangement positions of the present invention and colloidal silica schematic cross-section；
Fig. 5 brush bodies of the present invention carry out the schematic diagram before bending to ear；
The bristle face midline position relation schematic diagram of the upper and lower brush of Fig. 6 present invention.
Wherein：
Motor 1, drive shaft 1.1, power supply 2, control device 3 and brush 4, bristle face 4.1, internal tooth bristle face 4.11, external tooth
Bristle face 4.12, occlusion bristle face 4.13, colloidal silica 4.14, brush body 4.15, ear 4.2, upper brush bristle face center line 4U,
The bristle face center line 4L of lower brush, connecting rod 5 connects boom end 5.1, handle 6, charging end 6.1, charging base 7, charging end
7.1, plug 7.2, hairbrush block 4.3.
Specific embodiment：
Below, invention is specifically described with reference to each Figure of description.
Electric toothbrush includes motor 1, power supply 2, control device 3 and brush 4, and brush 4 is in circular arc and can be contained in mouth
In chamber, along brush 4 in shape under respectively with semi-surrounding bristle face 4.1.Opening up the setting of the bristle face on top its semi-surrounding
Put, the opening down setting of the bristle face of bottom its semi-surrounding.Brush head upper and bottom are fastenedly connected.
Brush 4 is point circle, square circular, oval or its shape for combining in circular arc, and this several shape is the base of dental arch
This shape, with general applicability, bristle face 4 has internal tooth bristle face 4.11 respectively, and external tooth bristle face 4.12 is engaged bristle face
4.13, respectively with pieces is planted, the material for planting pieces is known and conventional wear-resisting and elastic material, such as nylon hair or silicon rubber
Burr.
The bristle face 4 of semi-surrounding refer to plant U-shaped that pieces end constitutes and（Or）V-arrangement.The bristle face 4 of semi-surrounding coordinates human body
Dental arch shape can have preferably laminating with tooth, the bristle correspondence tooth inner side that multiple internal tooth bristle faces 4.11 are distributed thereon
Face, i.e. tongue side face.The bristle correspondence tooth lateral surface that multiple external tooth bristle faces 4.12 are distributed thereon, i.e. lip side.Occlusion bristle
The corresponding occlusal surface of grinding one's teeth in sleep of bristle that face 4.13 is distributed thereon.The distribution of such bristle can be such that every tooth and the teeth space can contacts
To bristle so as to effectively be cleaned.It should be noted that cutting and periphery can be not provided with being engaged bristle face in correspondence
4.13, because this position is carried out by having only needed to internal tooth bristle face 4.11 and external tooth bristle face 4.12 to corresponding to cutting herein
Effectively clean.
Wherein U-shaped bristle face is distributed in the two ends of circular arc brush, its correspondence human body molar locations.V-arrangement bristle is distributed in
The centre position of circular arc brush, cutting and side-cutting tooth position in its correspondence human body.U-shaped bristle face and V-arrangement bristle face gradual change
Cross and form.
Planting pieces can be angled with tooth axis, and preferred angle is, with 45 degree of angle of inclination, so may be used
So that bristle part enters in the fine gap of gum and tooth, to carry out deep clean, occlusal surface bristle 4.13 can also
Set and occlusal surfaces of teeth is certain angle of inclination, so less brushhead motion resistance, it is to avoid bristle fatigue deformation.
The length of run of the center line of brush 4 is 70 to 130 millimeters, and this is the arch length of adult normal.
It should be noted that：Because a certain tooth of someone may deflection for various reasons, in order that planting hair side
Good fit is kept with local irregular tooth, bristle face 4.1 can be cut into that multistage is independent of each other, independent sector
Elastic deformation will not constitute influence to the bristle face 4.1 of surrounding, and so independent part can preferably coordinate certain deflection
Tooth.Independent part all has elastomer respectively, and the setting of this elastomer can be the colloidal silica of the root of bristle face 4.1
4.14, colloidal silica 4.14 is by being molded acquisition in mould, bonding the position of contact and possess the feature of elastic deformation.Elasticity
Body can also be the helical spring or deformed spring that one end connection other end of bristle face 4.1 is fixed on head base.Other bullet
Gonosome can also be the metal clips being made up of elastic sheet metal, and its material is manganese steel, stainless steel, the conventional elasticity gold such as beryllium copper
Category material, this point can be illustrated in the manufacture method chapters and sections of accompanying drawing and brush.
On elastomer design can using it is above-mentioned select one or combine by the way of.
Because under natural situation, upper row's tooth part is located at the lateral surface of lower row's tooth, especially middle cutting and week
Several teeth on side, it is necessary to mandibular joint athleticism makes upper and lower cutting to it forward, and this action mandibular joint has discomfort
Sense, in order to more conform to human physiological structure and upper mandibular teeth can be fully contacted tooth, and avoids each tooth in brush
The situation of discontinuity occurs in motion process, and the scheme that the present invention is used is：As shown in drawings, in brush top view state
Under, the center line 4U of bristle face 4.1 of upper brush wherein some be located at lower brush the center line 4L of bristle face 4.1 outside, upper brush
Head center line 4U and the farthest distances of lower brush center line 4L are 4 to 8 millimeters, it is preferred that can significantly with the design of 5 millimeters of distance
Sense of discomfort is reduced, or only needs to the less motion of mandibular joint, the motion of same brush can also be maximized and every tooth patch
Close, center line mentioned here refers to the dummy line along circular arc head shapes center.
Control decoration 3 can refer to switch and the indicator lamp of power supply 2.Switch is arranged on handle 6.Further, it is possible to be light
Switch is touched, key switch, the startup for controlling motor, indicator lamp can set different colors for indicating power supply 2
State of charge and motor working condition.
Control device 3 can also be the control circuit board with switch, can carry out program setting with IC chip thereon,
Working time, the vibration frequency of controlled motor can be set, control circuit has the gear that can be adjusted, regulation motor vibrations frequency
Rate or amplitude and time, make different people using with the space that can be selected, meet individual demand, this point is for tooth
The crowd of tooth or gingival sensitivity is practical.Motor 1 and control device 3 and power supply 2 are connected by wire.This use
The control mode of prior art is not described in further details herein.
Motor 1 is located in the housing of handle 6, and motor 1 has drive shaft 1.1, and connecting rod 5 passes through drive shaft
1.1 and motor 1 connect, motor 1 can drive connecting rod 5 and brush 1 move by drive shaft 1.1, connecting rod 5 and brush
First 4 have two symmetrical connection boom ends 5.1, and connection boom end 5.1 is arranged at the length of run of brush 1 apart from brushhead end about 5/
2 position.Motor can be vibration motor or eccentric motor or the known micro-machine used in electric toothbrush.
The motion mode of the drive drive shaft 1.1 of motor 1 finally presents brush 4 to move up and down as its main fortune
Flowing mode, this motion mode is conducive to cleaning teeth space, and this motion mode needs handle 6 and brush 4 and in special angle,
Tool must be positioned to allow in order to be unlikely to handle 6 in use in special angle, connecting rod 5 and drive shaft 1.1 with connecting rod 5
There is the movable connection method of swing, you can be set to pendulum angle, further, the connected mode of this activity also includes
Allowing brush can extract from drive shaft to be convenient for changing brush, and the connected mode of this activity is referred to what floor mop towed the head
Structure realizes that do not do more detailed must illustrate herein.
The bottom of handle 6 has charging end 6.1, and electric toothbrush of the present invention also includes thering is charging base 7, on charging base 7
Also there is charging end 7.1 and the charging end 6.1 of the bottom of handle 6 to coordinate, there is plug 7.2 can access civil power on charging base 7
Power supply 2 is charged, indicator lamp can point out charged state, power supply 2 can also use common non-rechargeabel dry cell.Fill
The cooperation at electric end can be using widely used wireless charging technology in electric toothbrush.Electric elements in handle 6 its housing are equal
Obtain the protection of hermetic water-proof structure, such as using welding, the current techique such as sealing ring sealing.
In traditional plant hair technique：Plant pieces need can bear certain pulling force could than it is stronger avoid pieces release or
Person's deflection, feather planting machine tool hand needs to apply certain pressure to brush to make pieces be planted in the hole of predetermined design, and plants hair
Manipulator also needs to vertically better bear pressure as far as possible with brush face, and feather planting machine tool hand is needing in itself also than larger in addition
There is angle of inclination and area is less local and bad operation, be unfavorable for industrial production.
Present invention additionally comprises the method for the manufacture brush with order below：
1：Brush has the brush body 4.15 that metal clips is stamped or cut out, and its circular arc lateral surface and medial surface are arranged with
Independent ear 4.2,
2：Brush body 4.15 is positioned in mould, the ear 4.2 on brush or local parcel plastics is made by injection,
3：Plant hair is carried out to brush parcel plastics position and obtains hairbrush block 4.3,
4：The bristle face 4.1 that bending obtains semi-surrounding is carried out to ear.
Present invention additionally comprises the method that another has order below manufacture brush：
1：Brush has the brush body 4.15 that metal clips is stamped or cut out, and its circular arc lateral surface and medial surface are arranged with
Independent ear 4.2；
Unit of plastic to being molded carries out plant hair and obtains hairbrush block 4.3,
2：Hairbrush block 4.3 is loaded the ear 4.2 on brush body 4.15,
3：The bristle face 4.1 that bending obtains semi-surrounding is carried out to ear.
Above-mentioned manufacture is that can reduce the difficulty for planting hair, and the part of independent parcel plastics can be carried out respectively
Hair is planted, so there is preferable operating space, it is to avoid the stop each other of interior external tooth, the brush body 4.15 of described cutting
Its method can be cut by laser or be cut using engraving machine and form or other conventional processes, and the mode cut is more suitable for individual
Property metaplasia produce, individual consumer is customized.The mode of punching press is then relatively conventional.The manufacture method that the present invention is provided facilitates work
Industry metaplasia is produced.Both sides symmetric position also has breach 4.15 on brush body 4.15, and this breach can be carried in finger grip
Brush body 4.15 is inwardly received for elastic deformation, be conveniently put into oral cavity when in use, grip power can be automatic after disappearing
Revert to original shape.
In addition, embodiments of the present invention are the present invention is preferably embodied example, also simultaneous with technically preferable
Various restrictions, technical scope of the invention as long as no record of the invention is particularly limited to, is then not limited to these embodiment party
Formula.Structural element in shown implementation method, can carry out appropriate structure replacing, and may be included in the group of existing structure key element
Close in interior change, it is thus impossible to limit the content of the invention described in claims with the record of implementation method.
Claims (11)
1. electric toothbrush includes motor（1）, power supply（2）, control device（3）And brush（4）, it is characterised in that：Brush（4）
In circular arc and can be contained in oral cavity, along brush（4）Respectively there is the bristle face of semi-surrounding under in shape（4.1）.
2. electric toothbrush as claimed in claim 1, it is characterised in that：Described circular arc is circular for point, square circular, oval
Or its combination.
3. electric toothbrush as claimed in claim 1, it is characterised in that：Bristle face（4.1）There are multiple internal tooth bristle faces respectively
（4.11）, multiple external tooth bristle faces（4.12）, multiple occlusion bristle face（4.13）, and there is plant pieces respectively.
4. electric toothbrush as claimed in claim 1, it is characterised in that：The bristle face of semi-surrounding（4.1）Refer to plant pieces end in U
Shape and（Or）V-arrangement.
5. electric toothbrush as claimed in claim 1, it is characterised in that：Brush（4）With elastomer.
6. electric toothbrush as claimed in claim 1, it is characterised in that：Brush（4）The length of run of center line is 70 to 130 millis
Rice.
7. electric toothbrush as claimed in claim 1, it is characterised in that：Control device（3）Refer to switch or the control with switch
Wiring board processed.
8. electric toothbrush as claimed in claim 1, it is characterised in that：Brush（4）By connecting rod（5）With motor（1）
It is connected, motor（1）Brush can be driven by connecting rod 5（4）Motion.
9. electric toothbrush as claimed in claim 1, it is characterised in that：In brush（4）Under top view state, the bristle of upper brush
The center line of face 4.1（4U）Wherein some is located at the bristle face of lower brush（4.1）Center line（4L）Outside.
10. electric toothbrush as claimed in claim 1, it is characterised in that brush（4）Manufacture method with order below：
One：Brush（4）With the brush body that metal clips is stamped or cut out（4.15）, its circular arc lateral surface and medial surface
It is arranged with independent ear（4.2）,
Two：By brush body（4.15）It is positioned in mould, brush body is made by injection（4.15）On ear（4.4）Or office
Plastics are wrapped up in portion,
Three：To brush（4）Parcel plastics position carries out plant hair and obtains hairbrush block（4.5）,
Four：To ear（4.2）Carry out the bristle face that bending obtains semi-surrounding（4.1）.
11. electric toothbrushes as claimed in claim 1, it is characterised in that brush has the manufacture method of order below：
One：Brush has the brush body that metal clips is stamped or cut out（4.15）, its circular arc lateral surface and medial surface are arranged
Show independent ear（4.2）；
Unit of plastic to being molded carries out plant hair and obtains hairbrush block（4.3）,
Two：By hairbrush block（4.3）Load brush body（4.15）On ear（4.2）,
Three：To ear（4.2）Carry out the bristle face that bending obtains semi-surrounding（4.1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001118.XA CN106667611A (en) | 2017-01-03 | 2017-01-03 | Electric toothbrush and manufacture method of brush head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001118.XA CN106667611A (en) | 2017-01-03 | 2017-01-03 | Electric toothbrush and manufacture method of brush head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106667611A true CN106667611A (en) | 2017-05-17 |
Family
ID=58849985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710001118.XA Pending CN106667611A (en) | 2017-01-03 | 2017-01-03 | Electric toothbrush and manufacture method of brush head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106667611A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107669363A (en) * | 2017-10-23 | 2018-02-09 | 深圳小阔科技有限公司 | A kind of electric toothbrush, toothbrush assembly |
| CN111629687A (en) * | 2018-01-19 | 2020-09-04 | Blbr股份有限公司 | Tooth cleaning device and mouthpiece carrier structure for tooth cleaning device |
| CN114287732A (en) * | 2022-01-19 | 2022-04-08 | 张喜 | Occlusion type staggered tooth toothbrush and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177827A (en) * | 1991-01-14 | 1993-01-12 | Ellison Benedict M | Electric-powered dental brush |
| US20040128777A1 (en) * | 2000-12-12 | 2004-07-08 | Kyung-Yong Koh | Electro-motion toothbrush |
| CA2822286A1 (en) * | 2010-12-20 | 2012-06-28 | Frederic H. Moll | System and method for teeth cleaning |
| WO2015072676A1 (en) * | 2013-11-18 | 2015-05-21 | 유희장 | Oral electric toothbrush |
| CN205073060U (en) * | 2015-10-30 | 2016-03-09 | 姚青 | All -round scientific toothbrush |
| CN206836983U (en) * | 2017-01-03 | 2018-01-05 | 唐娟 | Electric toothbrush |
-
2017
- 2017-01-03 CN CN201710001118.XA patent/CN106667611A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177827A (en) * | 1991-01-14 | 1993-01-12 | Ellison Benedict M | Electric-powered dental brush |
| US20040128777A1 (en) * | 2000-12-12 | 2004-07-08 | Kyung-Yong Koh | Electro-motion toothbrush |
| CA2822286A1 (en) * | 2010-12-20 | 2012-06-28 | Frederic H. Moll | System and method for teeth cleaning |
| WO2015072676A1 (en) * | 2013-11-18 | 2015-05-21 | 유희장 | Oral electric toothbrush |
| CN205073060U (en) * | 2015-10-30 | 2016-03-09 | 姚青 | All -round scientific toothbrush |
| CN206836983U (en) * | 2017-01-03 | 2018-01-05 | 唐娟 | Electric toothbrush |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107669363A (en) * | 2017-10-23 | 2018-02-09 | 深圳小阔科技有限公司 | A kind of electric toothbrush, toothbrush assembly |
| CN111629687A (en) * | 2018-01-19 | 2020-09-04 | Blbr股份有限公司 | Tooth cleaning device and mouthpiece carrier structure for tooth cleaning device |
| CN111629687B (en) * | 2018-01-19 | 2022-05-31 | Blbr股份有限公司 | Tooth cleaning device, mouthpiece and carrier structure for tooth cleaning device |
| CN114287732A (en) * | 2022-01-19 | 2022-04-08 | 张喜 | Occlusion type staggered tooth toothbrush and using method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170517 |