CN109330720A - Buccal tube - Google Patents
Buccal tube Download PDFInfo
- Publication number
- CN109330720A CN109330720A CN201811191493.6A CN201811191493A CN109330720A CN 109330720 A CN109330720 A CN 109330720A CN 201811191493 A CN201811191493 A CN 201811191493A CN 109330720 A CN109330720 A CN 109330720A
- Authority
- CN
- China
- Prior art keywords
- main body
- buccal tube
- bottom plate
- buccal
- archwire slot
- 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.)
- Withdrawn
Links
- 230000000903 blocking effect Effects 0.000 claims description 8
- 210000004400 mucous membrane Anatomy 0.000 abstract description 15
- 230000006378 damage Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 210000000214 mouth Anatomy 0.000 description 34
- 238000011282 treatment Methods 0.000 description 12
- 210000002455 dental arch Anatomy 0.000 description 10
- 210000001519 tissue Anatomy 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 208000030194 mouth disease Diseases 0.000 description 3
- 210000000332 tooth crown Anatomy 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 231100000241 scar Toxicity 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000002200 mouth mucosa Anatomy 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/125—Mouth tissue protecting means, e.g. bracket caps
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
A kind of buccal tube, which is characterized in that the buccal tube includes main body and bottom plate, and the main body and bottom plate are integrally formed；The main body is in shuttle shape, and rounding off between any two face of the main body, the main body is equipped with perforative archwire slot, and it includes left port and right output port that the archwire slot, which is equipped with, and the left port is greater than the right output port.The round and smooth no corner angle of buccal surface pipe surface of the invention, no protrusion and recess, the round and smooth mucous membrane of mouth of energy are in contact, and will not damage mucous membrane of mouth.The main body of buccal tube is integrally formed with bottom plate simultaneously, so that manufacturing process is simple, improves production efficiency.
Description
Technical field
Present invention relates particularly to orthodontic fields, and in particular to a kind of buccal tube.
Background technique
Buccal tube is common additional device during orthodontic treatment.Buccal tube is made of bottom plate, main body and draw hook,
Bottom plate is used for binding tooth crown surfaces, and main body is for accommodating dental arch filament, and draw hook is for hanging the auxiliary instruments such as band.Buccal surface
Pipe is usually adhered to area of grinding one's teeth in sleep, for preventing the end of dental arch filament used in orthodontic process to be directly exposed in oral cavity,
Mucous membrane of mouth is scratched, mouth disease is caused.
The outer surface corner angle of existing buccal tube are clearly demarcated, after mucous membrane of mouth touches the corner angle of buccal tube, easily draw
Hurt mucous membrane of mouth, causes injury of mouth.Main body, bottom plate and the draw hook of existing buccal tube be it is separately manufactured, pass through weldering later
The methods of connect and to be assembled, complex process, the efficiency of manufacture it is low；Structural instability simultaneously, is easy to appear falling off for bottom plate.
Existing bottom plate is punch forming, and the bottom plate curvature being consistent with crown surfaces curvature and anti-skid design are manufactured on bottom plate,
But it is excessively small due to bottom plate, prevent the dynamics of machine punching press causes the curvature and tooth of bottom plate from controlling well
The curvature of tooth crown surfaces is inconsistent, while the anti-skid design of bottom plate is coarse, is unfavorable for the attachment of bonding agent.
Summary of the invention
The purpose of the present invention is to provide a kind of surface is smooth, no protrusion is with recess, the cheek of rounding off between face and face
Facial canal.The simple production process of this buccal tube, what can be consolidated is adhered to dental surface.
Technical solution of the present invention is as follows.
A kind of buccal tube, the buccal tube include main body and bottom plate, and the main body and bottom plate are integrally formed；
The main body is in shuttle shape, rounding off between any two face of the main body,
The main body is equipped with perforative archwire slot, and the archwire slot includes left port and right output port, and the left port is greater than described
Right output port.
Further, the surface of the main body is smooth face.
Further, the top of the main body is equipped with top surface, and the top surface is circular arc camber.
Further, the main body is equipped with lateral surface along archwire slot direction, and the lateral surface is circular arc camber or plane.
Further, the surface of the main body is without recess and/or protrusion.
Further, the mode of the rounding off is rounded corner.
Further, the angled inclination of the main body.
Further, the left port is wide-mouth shape.
Further, the lower surface of the bottom plate is curved surface, and the middle part of the lower surface of base plate is equipped with convex, the institute of several bondings
The outside for stating lower surface of base plate is equipped with blocking portion, and the bonding is convex regularly arranged.
Further, the main body is additionally provided with draw hook, and the draw hook is connected to the right end of the main body.
Beneficial effect.
1, buccal tube of the invention has smooth surface, and surface is without protrusion and is recessed, and between the face and face of buccal tube
Round and smooth transition, so that buccal tube is without corner angle, so that buccal surface pipe surface extremely smooth.When buccal tube and mucous membrane of mouth
When being in contact, the contact smooth with mucous membrane of mouth of the smooth surface of buccal tube can be reduced damage caused by due to friction；Simultaneously
Round and smooth transition between the face and face of buccal tube, no corner angle will not cause and mouth as common buccal tube because of corner angle
When transmucosal contacts, mucous membrane of mouth is scratched, to cause the generation of mouth disease.Meanwhile it will not be such as other common buccal tubes
Because rough surface and there are corner angle and scratch mucous membrane of mouth, the generation of mouth disease is caused.
2, the main body of buccal tube of the invention is in shuttle shape, and the main body of shuttle shape can disperse the effect from oral cavity various aspects
Power protects the stability of buccal tube structure, in the bonding and tooth for enabling buccal tube stable, while also avoid mucous membrane of mouth with
The effect of buccal tube and the damage for causing mucous membrane of mouth.
3, the bottom surface at the top of the main body of buccal tube of the invention is circular arc camber, the setting of circular arc camber, so that buccal surface
The top of pipe is round and smooth, and top round and smooth can be in contact with mucous membrane of mouth, while the setting of circular arc camber can disperse to organize in oral cavity
To the active force at the top of main body, the damage of oral cavity tissue is avoided.
4, the lateral surface of the main body of buccal tube of the invention is circular arc camber, the setting of circular arc camber, so that buccal tube
Lateral surface is round and smooth, and lateral surface round and smooth can be in contact with mucous membrane of mouth, while the setting of circular arc camber can disperse to organize in oral cavity
To the active force of the lateral surface of main body, the damage of oral cavity tissue is avoided.
5, the lateral surface of the main body of buccal tube of the invention is plane, which is connected with top surface having a circular-arc curved surface
It connects, lateral surface is the stability for the structure that plane can support circular-arc curved top surface, and buccal tube is enabled to have firm structure.
6, the left port of the archwire slot of buccal tube of the invention is greater than right output port, and left port is the port that dental arch filament penetrates,
And right output port is the port that dental arch filament is pierced by, left port is larger to be convenient for penetrating for dental arch filament, facilitate the operation of orthodontist；It is right
Port is smaller to enable the dental arch filament being pierced by movable in lesser range, avoid because right output port is larger, and leads to dental arch filament
There is biggish mobile space, enables dental arch filament arbitrary movable, the treatment of unfavorable orthodontic.
7, the left port of the archwire slot of buccal tube of the invention is wide-mouth shape, and the left port of wide-mouth shape can facilitate orthodontist
Arch wire is penetrated, the efficiency of orthodontist operation is improved, avoids being unfavorable for penetrating the awkward situation of arch wire because the port of archwire slot is too small
Generation.
8, the surface of buccal tube of the invention is easy if the surface of buccal tube has protrusion and recess without protrusion and recess
Because the swill caused by feeding process has protrusion and be recessed because of the surface of buccal tube retains, so as to cause oral cavity defend
The variation of raw environment, the final health for influencing oral cavity.
9, buccal tube of the invention is made of main body and bottom plate, and main body and bottom plate are integrally formed, so that the structure of buccal tube
Stablize, will not be connected such as the bottom plate and main body of common buccal tube by modes such as welding, and bottom plate is caused to be easy to fall off
The generation of problem.
10, buccal tube of the invention is made of main body and bottom plate, and main body and bottom plate are integrally formed, and common buccal tube
Bottom plate and main body are attached by modes such as welding, and thus buccal tube manufacturing process of the invention is simple, saves a large amount of people
Power material resources, improve production efficiency.
11, the curvature of the lower surface of the bottom plate of buccal tube of the invention is equal with the curvature of mankind's crown surfaces, so that cheek
Facial canal can closely fit in the surface of corona, will not fall off, to influence the effect for the treatment of.
Detailed description of the invention.
Fig. 1 is the perspective view of the buccal tube of embodiment one.
Fig. 2 is the floor diagram of the buccal tube of embodiment one.
Fig. 3 is the perspective view of the buccal tube of embodiment two.
Fig. 4 is the top view of the buccal tube of embodiment two.
Description of symbols:
10, buccal tube；20, main body；21, top surface；22, lateral surface；23, draw hook；24, right output port；25, archwire slot；30, bottom
Plate；31, axis inclines mark；32, it is bonded convex；34, blocking portion；35, disassembling part.
Specific embodiment.
Specific embodiment one.
A kind of buccal tube 10, buccal tube 10 are made of main body 20 and bottom plate 30, and main body 20 is located on bottom plate 30, main body 20
It is integrally formed and manufactures with bottom plate 30.
Main body 20, main body 20 are in shuttle shape, and the surface of main body 20 is smooth face, and the surface of main body 20 without protrusion with it is recessed
It falls into, the inclination of main body 20 at an angle, main body 20 is equipped with perforative archwire slot 25.
Main body 20 is in shuttle shape, and shuttle shape has the characteristics that fairshaped, thus the main body 20 of shuttle shape can disperse in oral cavity
The active force of all directions of tissue so that buccal tube 10 keeps stablizing, while also reducing and connecting because of oral cavity tissue with buccal tube 10
The frictional force of touching and generation, reduces the damage of oral cavity tissue.
It is round and smooth connection between the face and face of main body 20, even if corner angle round and smoothization on 20 surface of main body is obtained, so that main body 20
Surface can puncture or scratch the structure of mucous membrane of mouth without corner angle etc., the contact for enabling main body 20 round and smooth with oral mucosa, no
Mucous membrane of mouth can be scratched because there are corner angle, cause the damage in oral cavity.Round and smooth connection is mainly carried out by way of rounded corner,
Based on 20 corner angle carry out rounded corner so that 20 surface of main body is mellow and full smooth.
The top of main body 20 is equipped with top surface 21, and top surface 21 is circular arc camber, the both ends along 25 direction of archwire slot of top surface 21
Side be the arc-shaped edges being parallel to each other, while top surface 21 is also for the arc surface to arch upward upwards, the circular arc camber thus to arch upward upwards
The top surface 21 of shape can disperse the active force come from oral cavity each taeniae telarum, reduce tissue in oral cavity and mutually rub with buccal tube 10
It wipes, avoids the damage of oral cavity tissue, while but also in the bonding and corona that buccal tube 10 can consolidate, it will not be because of oral cavity tissue
With the impact of buccal tube 10, and buccal tube 10 is fallen off from corona, cause the interruption for the treatment of process, influences the effect for the treatment of
Fruit.
Two outsides in the direction along archwire slot 25 of main body 20 are respectively provided with lateral surface 22, the upper end and top surface 21 of lateral surface 22
The end (i.e. arc-shaped edges of the top surface 21 along 25 direction of archwire slot) along 25 direction of archwire slot be connected, lower end is connected with bottom plate 30
It connects, lateral surface 22 is plane, and the lateral surface 22 of the two sides in 25 direction of archwire slot of main body 20 is parallel to each other, and because lateral surface 22
For plane, the support top surface 21 for enabling lateral surface 22 firm, so that 20 stable structure of main body, will not be destroyed.
Main body 20 is equipped with the archwire slot 25 of perforative main body 20, and archwire slot 25 has left and right ends mouthful, and wherein left port is greater than
Right output port 24, and left port is in wide-mouth shape, so that during orthodontic treatment, orthodontist can easily archwire slot 25
Left port penetrates dental arch filament, reduces the time operated in orthodontic treatment, improves the treatment experience sense of patient.
The surface of main body 20 is easy buccal tube 10 without protrusion and/or recess
Food residual residue influences the environmental sanitation in oral cavity.It if any protrusion in main body 20, then is easy to hook food, and has in main body 20
Recess is then easy to accommodate swill, patient's oral hygiene condition is made to be deteriorated, if while wanting to clear up and hook because of protrusion
Then burnisher is needed to be cleared up with the food residue because of recesses, but cleaning tool inevitably with buccal surface
The surface of pipe 10 mutually rubs, and is easy to damage the surface of main body 20, so that the surface of buccal tube 10 is there are scar, and 10 table of buccal tube
The scar in face bacterium easy to breed, so that oral environment is poorer for it；The phase mutual friction leaf of burnisher and buccal tube 10 simultaneously
It is easy to cause the buccal tube 10 of bonding and crown surfaces unstable, buccal tube 10 is easy to fall off from corona, so that patient must weigh
New bonding buccal tube 10 improves the sense of discomfort for the treatment of and causes pressure economically.
Main body 20 along 25 direction of archwire slot both ends respectively based on 20 left end and right end, the left end of main body 20 be higher than master
The right end of body 20, the angled inclination of main body 20.Angle formed by 20 plane tangent with corona based on the inclined angle of main body 20
Degree, enable main body 20 with meet the curvature of corona, and then meet the curvature of dental arch, buccal tube 10 enabled to meet Biological Strength
It learns, in good holding oral cavity, the effect for the active force being subject to is made to become smaller.
It is additionally provided with draw hook 23 on the lateral surface 22 of the right end of main body 20, the setting of draw hook 23 enables buccal tube 10
Bundle the utensil of the orthodontic treatments such as ligature.
The bottom plate 30 of buccal tube 10 is located under main body 20, and the middle part of the upper surface of bottom plate 30 is connected with main body 20, bottom
The upper surface of plate 30 is smooth curved surface.The upper surface of bottom plate 30 is equipped with axis and inclines mark 31, axis incline mark 31 setting so that
Orthodontist can accurately tell the bonding location of buccal tube 10, improve the efficiency of orthodontic treatment.
The lower surface of bottom plate 30 is curved surface, the curvature of mankind's corona is met for the curvature of the lower surface of curved surface, so that buccal surface
Pipe 10 can accurately be matched with corona face, without interspacing, enable buccal tube 10 is firm to be adhered on corona.Bottom plate
Several bonding convex 32 is additionally provided in the middle part of 30 lower surface, bonding convex 32 is cuboid or cylindrical body etc. structure, so that viscous
Connecing convex 32 has maximum surface area exposure, while being bonded the arrangements of convex 32 rule, enable convex 32 maximum area of bonding with glue
It connects agent to be in contact, to there is maximum effective bonding agent to be in contact with corona face, so that corona and bottom plate 30 are connected, so that buccal surface
What pipe 10 can consolidate is adhered on corona.Blocking portion 34 is additionally provided on the outside of the lower surface of bottom plate 30,34 energy of blocking portion and tooth
Crown closely contacts, prevent the liquid in oral cavity is viscous in the middle part of 30 lower surface of bottom plate from being infiltrated by blocking portion 34
It connects at convex 32, thus corrosive bond agent, and then influence in the bonding and corona that buccal tube 10 can consolidate.The outside of blocking portion 34
It is additionally provided with the disassembling part 35 being recessed upwards relative to blocking portion 34, disassembling part 35 is set to the quadrangle of 30 lower surface of bottom plate, disassembly
Portion 35 is mainly used for the disassembly of buccal tube 10, after the completion of orthodontic treatment, is protruded among disassembling part 35 using extracting tool, applies
Active force can dismantle buccal tube 10 from corona, simple and convenient.
The main body 20 and bottom plate 30 of buccal tube 10 are integrally formed, and obtain the stable structure of buccal tube 10, will not be as common
The bottom plate 30 of buccal tube 10 and main body 20 are connect by modes such as welding, and generation the problem of cause bottom plate 30 to be easy to fall off.
Manufacturing process is simple simultaneously, saves a large amount of manpower and material resources, also improves production efficiency.
Specific embodiment two.
The top surface 21 at the top of the main body 20 of buccal tube 10 is circular arc camber, the both ends along 25 direction of archwire slot of top surface 21
Side be the arc-shaped edges mutually outwardly protruded, while top surface 21 is also upward arc surface.Simultaneously because the edge of main body 20
Two outsides in 25 direction of archwire slot are respectively provided with lateral surface 22, the upper end of lateral surface 22 and the end along 25 direction of archwire slot of top surface 21
Portion's (i.e. arc-shaped edges) is connected.Since the side at the both ends along 25 direction of archwire slot of top surface 21 is the circular arc mutually outwardly protruded
Side, so the lateral surface 22 being connected with arc-shaped edges is also the circular arc camber outwardly protruded, main body 20 is along 25 direction of archwire slot
Two lateral surfaces 22 in two outsides are the circular arc camber mutually protruded, so that main body 20 is the main body 20 of the elliptical shuttle shape of class.
The present embodiment is the same as example 1 with curved surface buccal tube 10, and details are not described herein.
The above is only specific embodiments of the present invention, are not limited the scope of protection of the present invention with this；Do not violating this hair
Made any replacement and improvement, category protection scope of the present invention on the basis of bright design.
Claims (10)
1. a kind of buccal tube, which is characterized in that the buccal tube includes main body and bottom plate, and the main body and bottom plate are integrally formed；
The main body is in shuttle shape, rounding off between any two face of the main body,
The main body is equipped with perforative archwire slot, and the archwire slot includes left port and right output port, and the left port is greater than described
Right output port.
2. buccal tube as described in claim 1, which is characterized in that the surface of the main body is smooth face.
3. the buccal tube as described in any one of claim 1-2 claim, which is characterized in that the top of the main body is equipped with top
Face, the top surface are circular arc camber.
4. the buccal tube as described in any one of claim 1-2 claim, which is characterized in that the main body is set along archwire slot direction
There is lateral surface, the lateral surface is circular arc camber or plane.
5. buccal tube as described in claim 1, which is characterized in that the surface of the main body is without recess and/or protrusion.
6. buccal tube as described in claim 1, which is characterized in that the mode of the rounding off is rounded corner.
7. buccal tube as described in claim 1, which is characterized in that the angled inclination of main body.
8. buccal tube as described in claim 1, which is characterized in that the left port is wide-mouth shape.
9. buccal tube as described in claim 1, which is characterized in that the lower surface of the bottom plate is curved surface, the bottom plate following table
The middle part in face is convex equipped with several bondings, and the outside of the lower surface of base plate is equipped with blocking portion, and the bonding is convex regularly arranged.
10. buccal tube as described in claim 1, which is characterized in that the main body is additionally provided with draw hook, the traction hook connects
In the right end of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811191493.6A CN109330720A (en) | 2018-10-12 | 2018-10-12 | Buccal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811191493.6A CN109330720A (en) | 2018-10-12 | 2018-10-12 | Buccal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109330720A true CN109330720A (en) | 2019-02-15 |
Family
ID=65309360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811191493.6A Withdrawn CN109330720A (en) | 2018-10-12 | 2018-10-12 | Buccal tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109330720A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030113683A1 (en) * | 2001-12-14 | 2003-06-19 | 3M Innovative Properties Company | Orthodontic appliance with lingual retaining groove |
| US20040121278A1 (en) * | 2002-12-19 | 2004-06-24 | 3M Innovative Properties Company | Low profile orthodontic appliance |
| US20040121279A1 (en) * | 2002-12-19 | 2004-06-24 | 3M Innovative Properties Company | Orthodontic appliance with placement enhancement structure |
| US20060046224A1 (en) * | 2004-08-31 | 2006-03-02 | 3M Innovative Properties Company | Molar appliance for an orthodontic brace |
| CN204501026U (en) * | 2015-02-12 | 2015-07-29 | 杭州星辰三比齿科器材有限公司 | A kind of buccal tube |
| CN205286567U (en) * | 2016-01-19 | 2016-06-08 | 杭州雅美口腔医疗器材厂 | Miniature tongue side holds in palm groove |
| CN205411358U (en) * | 2016-02-02 | 2016-08-03 | 杭州斯麦尔医疗器械有限公司 | Buccal surface pipe |
| CN209316104U (en) * | 2018-10-12 | 2019-08-30 | 广州欧欧医疗科技有限责任公司 | Buccal tube |
-
2018
- 2018-10-12 CN CN201811191493.6A patent/CN109330720A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030113683A1 (en) * | 2001-12-14 | 2003-06-19 | 3M Innovative Properties Company | Orthodontic appliance with lingual retaining groove |
| US20040121278A1 (en) * | 2002-12-19 | 2004-06-24 | 3M Innovative Properties Company | Low profile orthodontic appliance |
| US20040121279A1 (en) * | 2002-12-19 | 2004-06-24 | 3M Innovative Properties Company | Orthodontic appliance with placement enhancement structure |
| US20060046224A1 (en) * | 2004-08-31 | 2006-03-02 | 3M Innovative Properties Company | Molar appliance for an orthodontic brace |
| CN204501026U (en) * | 2015-02-12 | 2015-07-29 | 杭州星辰三比齿科器材有限公司 | A kind of buccal tube |
| CN205286567U (en) * | 2016-01-19 | 2016-06-08 | 杭州雅美口腔医疗器材厂 | Miniature tongue side holds in palm groove |
| CN205411358U (en) * | 2016-02-02 | 2016-08-03 | 杭州斯麦尔医疗器械有限公司 | Buccal surface pipe |
| CN209316104U (en) * | 2018-10-12 | 2019-08-30 | 广州欧欧医疗科技有限责任公司 | Buccal tube |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190215 |