CN201572200U - Modified intraoral frame premaxillary tractor - Google Patents
Modified intraoral frame premaxillary tractor Download PDFInfo
- Publication number
- CN201572200U CN201572200U CN201020019657XU CN201020019657U CN201572200U CN 201572200 U CN201572200 U CN 201572200U CN 201020019657X U CN201020019657X U CN 201020019657XU CN 201020019657 U CN201020019657 U CN 201020019657U CN 201572200 U CN201572200 U CN 201572200U
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- Prior art keywords
- upper jaw
- maxillary
- posture
- pair
- metal rack
- 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.)
- Expired - Fee Related
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 210000003254 palate Anatomy 0.000 claims abstract description 16
- 210000004763 bicuspid Anatomy 0.000 claims abstract description 6
- 210000000214 mouth Anatomy 0.000 claims description 24
- 210000001624 hip Anatomy 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 210000003464 cuspid Anatomy 0.000 claims description 4
- 210000003128 head Anatomy 0.000 claims description 3
- 210000004400 mucous membrane Anatomy 0.000 claims description 3
- 208000002193 Pain Diseases 0.000 claims description 2
- 238000011282 treatment Methods 0.000 abstract description 14
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 12
- 210000002455 dental arch Anatomy 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 206010061274 Malocclusion Diseases 0.000 abstract 4
- 230000001815 facial effect Effects 0.000 abstract 2
- 230000036244 malformation Effects 0.000 abstract 2
- 206010018282 Gingival erosion Diseases 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 210000003707 mixed dentition Anatomy 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000399 orthopedic effect Effects 0.000 abstract 1
- 210000004225 permanent dentition Anatomy 0.000 abstract 1
- 230000036342 permanent tooth eruption Effects 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 5
- 206010006326 Breath odour Diseases 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 206010070918 Bone deformity Diseases 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 210000004195 gingiva Anatomy 0.000 description 3
- 210000001847 jaw Anatomy 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 208000032170 Congenital Abnormalities Diseases 0.000 description 2
- 208000032139 Halitosis Diseases 0.000 description 2
- 101001001429 Homo sapiens Inositol monophosphatase 1 Proteins 0.000 description 2
- 102100035679 Inositol monophosphatase 1 Human genes 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 230000007773 growth pattern Effects 0.000 description 2
- 238000011999 immunoperoxidase monolayer assay Methods 0.000 description 2
- GHZKGHQGPXBWSN-UHFFFAOYSA-N methyl(propan-2-yloxy)phosphinic acid Chemical compound CC(C)OP(C)(O)=O GHZKGHQGPXBWSN-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000008708 Prognathism Diseases 0.000 description 1
- 206010051821 Retrognathia Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 210000002050 maxilla Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 239000002672 zinc phosphate cement Substances 0.000 description 1
Images
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model discloses a modified intraoral frame premaxillary tractor. A trapezoidal metal support is arranged on the palate side; homemade rings for a pair maxillary first premolars and finished product rings for a pair of maxillary first molars are symmetrically welded on a metal support; and the buccal side of the homemade rings for the maxillary first premolars and the finished product rings for the maxillary first molars is symmetrically welded with a pair of maxillary metal traction hooks. The modified intraoral frame premaxillary tractor solves the fixation problem in prior art to treat Angle III anterior crossbite malformation by means of a front traction orthopedic instrument, prevents ozostomia and gum erosion, avoids using a self-cured gel including benzene, has advantages of simple manufacturing, compact structure and reasonable design, is adapted to treat dental, functional and skeletal Angle III anterior crossbite malformation in the mixed dentition and the early permanent dentition, could press down the molar for improving the facial form of the III type long facial form patient, maintains dental arch width in treatment, has significant three-dimensional modification for malocclusion, jowl and face and has good curative effect for crossbite in clinic.
Description
Technical field
This utility model relates to a kind of AngleIII of being used for the treatment of class mistake
Odd-shaped auxiliary device, ramus maxillaris posture protraction headgear in especially a kind of Improvement type mouth, the making simple in structure, easy of this protraction headgear, and cleaning, no halitosis, patient are easily accepted.
Background technology
Since Oppenhein1944 at first uses front haulage upper jaw treatment III class mistake
Since the deformity, upper jaw front haulage is widely used in the III class mistake because of contracting behind upper jaw deficiency of development or the position
Odd-shaped treatment.Prior art front haulage appliance divides two parts, and a part is a mouthful interior part, bears pull strength; Another part is a mouthful outer part, makes anchorage.
Existing removable appliance of part or fixed appliance in existing mouthful, removable appliance is the back teeth plane
The pad appliance, because of it bends with steel wire, clinical crown weak point person maintenance is bad, easily dislocation; Appliance is used from the gel plastic-coated, has benzene to pollute, and the patient should not cooperate.Fixed appliance has plastic bonding formula front haulage appliance and stent-type to expand the bow protraction headgear.Plastic bonding formula front haulage appliance does not have steel wire, and the back teeth plane from the gel plastic-coated is only arranged
Pad, shortcoming is that halitosis is serious, the palate gingiva is along erosion, easily dislocation, whether front haulage puts in place is difficult for seeing clearly, rescues and finishes the back when removing appliance, can cause odontoseisis even comes off.It mainly is to the dental arch constriction that stent-type expands the bow protraction headgear, simple anti-
The patient does not need to expand bow device (disputable at present), and stent-type expands comparatively costliness of bow protraction headgear in addition, and the patient is difficult for accepting.
Summary of the invention
Defective or deficiency at above-mentioned prior art existence, in order further to solve front haulage appliance maintenance problem, problem of bad breath and gingiva erosion and the unsuitable collaborative problem of patient, the purpose of this utility model is, ramus maxillaris posture protraction headgear in a kind of Improvement type mouth is provided, this protraction headgear can avoid using traditional contain that benzene pollutes from the gel plastic-coated, its make simple, reasonable in design is simple, light and handy, the scope of application is the AngleIII class mistake for the early stage tooth of tooth phase and permanent teeth, functional, bone
Deformity is forced down and is ground one's teeth in sleep and the long face type of limit bone III class, keeps arch width in the treatment, makes
, jaw, face three-dimensional change be obvious, clinical correction is anti-
Evident in efficacy.
In order to realize above-mentioned task, this utility model is taked following technical solution:
Ramus maxillaris posture protraction headgear in a kind of Improvement type mouth, comprise the metal rack that is arranged on oral cavity upper jaw palate side, it is characterized in that, on metal rack, be symmetrically welded with a pair of upper jaw frist premolar self-control band and a pair of maxillary first molar finished product band, also be symmetrically welded with a pair of upper jaw cheek side metallic traction hook in the both sides of upper jaw frist premolar self-control band and maxillary first molar finished product band.
Other characteristics of the present utility model are:
Described metal rack is trapezoidal, or two tetragons be welded to form trapezoidal.
It is that 1.2 millimeters stainless steel silk bends that described upper jaw palate side metal rack and upper jaw cheek side metallic traction hook all adopt diameter.
The top and bottom of described metal rack is apart from palate tissue surface 1-2 millimeter, and support two waists connect in far away near in frist premolar and the first molar palate side band part, and 2 millimeters of two waists distance, second premolars palate sides, highly is arranged in corona part, avoids stinging
The head of described upper jaw cheek side metallic traction hook is bent into the U type, and level position opening is arranged in 3 millimeters places, the nearly cervical region gum side of both sides canine tooth corona, and leaves mucosal tissue 1-2 millimeter in far away.
Ramus maxillaris posture protraction headgear in the Improvement type mouth of the present utility model is a kind of clinical treatment AngleIII class mistake
Odd-shaped novel mouthful in appliance, make simple, reasonable in design is simple, light and handy, the scope of application is the AngleIII class mistake for the early stage tooth of tooth phase and permanent teeth, functional and bone
Deformity because of forcing down the long face type of limit bone III class of grinding one's teeth in sleep, is kept arch width, after rescuing in the treatment
, jaw, face three-dimensional change be obvious, clinical correction is anti-
Evident in efficacy.
Description of drawings
Fig. 1 is a kind of structural representation of ramus maxillaris posture protraction headgear in the Improvement type mouth of the present utility model;
Fig. 2 is the another kind of structural representation of ramus maxillaris posture protraction headgear in the Improvement type mouth of the present utility model;
Label among the figure is: 1, upper jaw frist premolar self-control band, 2, maxillary first molar finished product band, 3, the trapezoidal metal rack of upper jaw palate side, 4, upper jaw cheek side metallic traction hook, 5, the welding position, 6, two tetragon welding positions.
The utility model is described in further detail below in conjunction with accompanying drawing.
The specific embodiment
Referring to Fig. 1, Fig. 2, ramus maxillaris posture protraction headgear in the Improvement type mouth of the present utility model, comprise the metal rack 3 that is arranged on oral cavity upper jaw palate side, on metal rack 3, be symmetrically welded with a pair of upper jaw frist premolar self-control band 1 and a pair of maxillary first molar finished product band 2, also be symmetrically welded with a pair of upper jaw cheek side metallic traction hook 4 in the both sides of upper jaw frist premolar self-control band 1 and maxillary first molar finished product band 2.
Above-mentioned metal rack 3 is trapezoidal (Fig. 1), or two tetragons are welded to form (Fig. 2).
Be bent into a pair of upper jaw cheek side metallic traction hook 4 at the both sides buccal surface with the stainless steel silk of 1.2 millimeters of diameters, empirical tests, upper jaw cheek side metallic traction hook 4 applies 400g/cm2-700g/cm2 outside mouth pull strength do the time spent drag big, can be indeformable; The head of upper jaw cheek side metallic traction hook 4 is arranged in 3 millimeters places, the nearly cervical region gum side of canine tooth, leave mucosal tissue 1-2 millimeter (getting out of the way recessed), purpose is can pass through the upper jaw canine tooth line of rabbet joint for the line of force that connects after rubber band and the reinforcing of extraoral protraction device, each sutura of upper jaw bone complex is opened whole reach, and make following forward 40 °～45 ° of pull strength direction, make pull strength as far as possible forward down, reduce disadvantageous jawbone rotation, avoid high increasing below the vertical growth pattern patient, be the force application part of ramus maxillaris posture protraction headgear in the Improvement type mouth; Cheek side-lining hook 4 is arranged in 2 parts of cheek side frist premolar self-control band 1 and first molar finished product bands with silver soldering welding 5 in far away near, 2 millimeters of distance second premolarss do not hinder the corona growth and sting
Make band 1 and maxillary first molar finished product band 2 and upper jaw cheek side metallic traction hook 4 by oneself for the upper jaw frist premolar that makes the left and right sides and can connect to one, be bent into trapezoid metal rack 3 in the palate side with the stainless steel silk of 1.2 mm dias, 1.2 can resisting because of front haulage power, the anchorage of the stainless steel silk of mm dia causes dental arch constriction (measuring) through practice, connector and the part of keeping the dental arch of maxilla width for ramus maxillaris posture protraction headgear in the Improvement type mouth, the top and bottom of trapezoid metal rack 3 is apart from palate tissue surface 1-2 millimeter, make not pressurized of tissue surface, easy to clean, force down and grind one's teeth in sleep, the long face type of limit bone III class; Trapezoid top connects both sides frist premolar self-control band, the trapezoid end, connect both sides first molar band, trapezoid waist connects frist premolar and first molar finished product band respectively in far away near, and apart from 2 millimeters of the both sides second premolars palatal surfaces, trapezoidal waist height is arranged in corona part, is beneficial to the corona growth and does not hinder to sting
, weld 5 at joint face with silver soldering, so far the appliance left and right sides connects into an integral support.
Ramus maxillaris posture protraction headgear in this Improvement type mouth, during use with zinc phosphate cement or the bonding maintenance of compoite resin adhesive agent on frist premolar and first molar.
This utility model has solved front haulage appliance maintenance problem, the unsuitable collaborative problem of problem of bad breath and gingiva erosion and patient, avoided using contain that benzene pollutes from the gel plastic-coated, make simple, reasonable in design is simple, light and handy, the scope of application is the AngleIII class mistake for the early stage tooth of tooth phase and permanent teeth, functional, bone
Deformity, especially can force down to grind one's teeth in sleep because of this appliance design has improvement to the long face type of III class patient face type, keeps arch width in the treatment,
, jaw, face three-dimensional change be obvious, clinical correction is anti-
Evident in efficacy, be clinical treatment AngleIII class mistake
Deformity has designed appliance in novel mouthful.
The applicant adopts ramus maxillaris posture protraction headgear in the Improvement type mouth of the present utility model, has carried out clinical trial, and case is as follows in detail:
Yang, man, 11.5 years old, concave, bone AngleIII class, maxillary retrusion, prognathism, vertical growth pattern.Preceding X-ray measured value: SNA ° of treatment: 86.5 °, SNB °: 88.5 °, ANB ° :-1.9 °, SND °: 86.5 ° GoGn-SN:29.5 °, Po-NB:2, OP-SN °: 11 °, IMPA °: 85 °, Wits:-8.5, U1-NA °: 24 °, the U1-NA distance: 2, L1-NB °: 20 °, L 1-NB distance: 4.5, U1-L1 °: 135 °, face type angle: 1.5 °, nasal labial angle: 104 °, part bulging in the face: 1 °.
Treat end in 12 months, last lower teeth
Cover
Cover normally substantially, the face type changes, and part bulging becomes big in the face, highly shortens under the face, and lower jaw is restricted.X-ray measured value after the treatment: SNA °: 89 °, SNB °: 88.4 °, ANB °: 0.5 °, SND °: 86 °, GoGn-SN:27.9 °, Po-NB:2.4, OP-SN °: 9.2 °, IMPA °: 86 °, Wits:-7.2, U1-NA °: 32.2 °, the U1-NA distance: 9.7, L1-NB °: 24.4 °, the L1-NB distance: 3.5, U1-L1 °: 125.3 °, face type angle: 5 °, nasal labial angle: 106 °, part bulging in the face: 1.5 °, statistical data is supported clinical effectiveness.
The X-ray measurement data is handled through the t of spss statistical software check before and after clinical 10 routine patient treatments, and is as shown in table 1 below:
Table 1: the comparison in the Improvement type mouth before and after the treatment of upper jaw protraction headgear
Annotate: there is remarkable statistical significance * P＜0.05; There is the highly significant statistical significance * P＜0.01.
Have 7 to have statistical significance: ANB °, Wits, U1-NA apart from, face type angle as can be seen in the table, there is remarkable statistical significance * P＜0.05, part bulging in U1-L1, Ptm-A, the face, and there is the highly significant statistical significance * * P＜0.01.Alveolar bone A point, upper dental arch, upper jaw bone reach are described, the face bulging increases, and the face type changes.
Ramus maxillaris posture protraction headgear and existing stent-type expand the bow protraction headgear relatively in the Improvement type mouth of the present utility model, have the following advantages:
This utility model does not have the bow of expansion device, does not have the effect of the bow of expansion, only is anti-
Protraction headgear, effective, cost is low, and whole appliance cost is 35 yuan.
And existing stent-type expands the bow protraction headgear, and the bow of expansion device is arranged, and the effect of existing expansion bow also has the front haulage effect, treatment dental arch constriction and anti-
The patient, and generally anti-
The patient does not need to expand the bow device, and expands the bow device and cost an arm and a leg, and 60 yuan at least, 500 yuan at most, whole appliance cost is 100 yuan-600 yuan.
Above embodiment has made more detailed explanation to this utility model; but not to restriction of the present utility model; the ordinary artisan of this area; under the situation that does not break away from the technical solution of the utility model; can also increase technical characterictic or technical characterictic is done the various conversion that are equal to technical scheme, all belong to protection domain of the present utility model.
Claims (6)
1. ramus maxillaris posture protraction headgear in the Improvement type mouth, comprise the metal rack (3) that is arranged on oral cavity upper jaw palate side, it is characterized in that, on metal rack (3), be symmetrically welded with a pair of upper jaw frist premolar self-control band (1) and a pair of maxillary first molar finished product band (2), also be symmetrically welded with a pair of upper jaw cheek side metallic traction hook (4) in the both sides of upper jaw frist premolar self-control band (1) and maxillary first molar finished product band (2).
2. ramus maxillaris posture protraction headgear in the Improvement type mouth as claimed in claim 1, described metal rack (3) is trapezoidal.
3. ramus maxillaris posture protraction headgear in the Improvement type mouth as claimed in claim 2, described trapezoidal metal rack (3) is that two tetragons are welded to form.
4. it is that 1.2 millimeters stainless steel silk bends that ramus maxillaris posture protraction headgear in the Improvement type mouth as claimed in claim 1, the metal rack (3) of described upper jaw palate side and upper jaw cheek side metallic traction hook (4) all adopt diameter.
5. ramus maxillaris posture protraction headgear in the Improvement type mouth as claimed in claim 1, it is characterized in that, the top of described metal rack (3) and low apart from palate tissue surface 1-2 millimeter, support (3) two waists connect part in frist premolar and the first molar palate side band in far away from closely, and 2 millimeters of two waists distance, the second premolars palate sides, highly be arranged in corona part, avoid stinging
6. ramus maxillaris posture protraction headgear in the Improvement type mouth as claimed in claim 1, it is characterized in that the head of described upper jaw cheek side metallic traction hook (4) is bent into the U type, level position opening is in far away, be arranged in 3 millimeters places, the nearly cervical region gum side of both sides canine tooth corona, and leave mucosal tissue 1-2 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020019657XU CN201572200U (en) | 2010-01-11 | 2010-01-11 | Modified intraoral frame premaxillary tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020019657XU CN201572200U (en) | 2010-01-11 | 2010-01-11 | Modified intraoral frame premaxillary tractor |
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| Publication Number | Publication Date |
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| CN201572200U true CN201572200U (en) | 2010-09-08 |
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|---|---|---|---|
| CN201020019657XU Expired - Fee Related CN201572200U (en) | 2010-01-11 | 2010-01-11 | Modified intraoral frame premaxillary tractor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102805666A (en) * | 2012-07-31 | 2012-12-05 | 王震东 | Diaphragm pressing type maxillary traction device and manufacture method thereof |
| CN103349570A (en) * | 2013-06-17 | 2013-10-16 | 贝珉 | Ring frame type mandibular molar buccal erection device |
| CN105250016A (en) * | 2015-10-21 | 2016-01-20 | 深圳市家鸿口腔医疗股份有限公司 | Implanted 3D personalized continuous traction bone-formation device manufacturing method |
| CN105287028A (en) * | 2014-07-08 | 2016-02-03 | 汪虹虹 | Molar distalization appliance matched with micro-implant anchorage |
| WO2016197327A1 (en) * | 2015-06-09 | 2016-12-15 | 佘承鑫 | Surgery guiding bone plate |
| CN107518954A (en) * | 2017-09-15 | 2017-12-29 | 上海交通大学医学院附属第九人民医院 | Distraction device |
| CN108324355A (en) * | 2018-02-06 | 2018-07-27 | 南京医科大学附属口腔医院 | A kind of built-in arch distraction device |
| CN108742895A (en) * | 2018-06-25 | 2018-11-06 | 上海交通大学医学院附属第九人民医院 | A kind of built-in sagittal distraction osteogenesis device of the upper jaw |
| CN109745130A (en) * | 2019-02-20 | 2019-05-14 | 重庆医科大学附属口腔医院 | A mandibular posterior tooth depression device |
| CN115770118A (en) * | 2022-11-14 | 2023-03-10 | 四川大学 | Anshi III-class functional appliance suitable for high-angle patients and manufacturing method |
-
2010
- 2010-01-11 CN CN201020019657XU patent/CN201572200U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102805666B (en) * | 2012-07-31 | 2015-04-29 | 王震东 | Diaphragm pressing type maxillary traction device and manufacture method thereof |
| CN102805666A (en) * | 2012-07-31 | 2012-12-05 | 王震东 | Diaphragm pressing type maxillary traction device and manufacture method thereof |
| CN103349570A (en) * | 2013-06-17 | 2013-10-16 | 贝珉 | Ring frame type mandibular molar buccal erection device |
| CN105287028B (en) * | 2014-07-08 | 2018-05-08 | 汪虹虹 | A kind of distal movement of molar appliance for coordinating micro- implant anchorage |
| CN105287028A (en) * | 2014-07-08 | 2016-02-03 | 汪虹虹 | Molar distalization appliance matched with micro-implant anchorage |
| WO2016197327A1 (en) * | 2015-06-09 | 2016-12-15 | 佘承鑫 | Surgery guiding bone plate |
| CN105250016A (en) * | 2015-10-21 | 2016-01-20 | 深圳市家鸿口腔医疗股份有限公司 | Implanted 3D personalized continuous traction bone-formation device manufacturing method |
| CN107518954A (en) * | 2017-09-15 | 2017-12-29 | 上海交通大学医学院附属第九人民医院 | Distraction device |
| CN107518954B (en) * | 2017-09-15 | 2023-03-24 | 上海交通大学医学院附属第九人民医院 | Distraction osteogenesis device |
| CN108324355A (en) * | 2018-02-06 | 2018-07-27 | 南京医科大学附属口腔医院 | A kind of built-in arch distraction device |
| CN108742895A (en) * | 2018-06-25 | 2018-11-06 | 上海交通大学医学院附属第九人民医院 | A kind of built-in sagittal distraction osteogenesis device of the upper jaw |
| CN109745130A (en) * | 2019-02-20 | 2019-05-14 | 重庆医科大学附属口腔医院 | A mandibular posterior tooth depression device |
| CN115770118A (en) * | 2022-11-14 | 2023-03-10 | 四川大学 | Anshi III-class functional appliance suitable for high-angle patients and manufacturing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20120111 |