CN208741172U - Tooth-supported maxillary distractor - Google Patents
Tooth-supported maxillary distractor Download PDFInfo
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- CN208741172U CN208741172U CN201721136560.5U CN201721136560U CN208741172U CN 208741172 U CN208741172 U CN 208741172U CN 201721136560 U CN201721136560 U CN 201721136560U CN 208741172 U CN208741172 U CN 208741172U
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- bevel gear
- umbrella shape
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- round tube
- tooth
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- 238000012423 maintenance Methods 0.000 claims description 35
- 210000002050 maxilla Anatomy 0.000 claims description 35
- 210000000515 tooth Anatomy 0.000 claims description 19
- 210000000214 mouth Anatomy 0.000 claims description 17
- 210000003254 palate Anatomy 0.000 claims description 12
- 210000004400 mucous membrane Anatomy 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 7
- 208000032170 Congenital Abnormalities Diseases 0.000 description 8
- 206010009260 Cleft lip and palate Diseases 0.000 description 6
- 210000004513 dentition Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000036346 tooth eruption Effects 0.000 description 4
- 208000006735 Periostitis Diseases 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 208000016653 cleft lip/palate Diseases 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 210000003460 periosteum Anatomy 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003928 nasal cavity Anatomy 0.000 description 2
- 210000001331 nose Anatomy 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000001720 vestibular Effects 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 206010061159 Foot deformity Diseases 0.000 description 1
- 206010044684 Trismus Diseases 0.000 description 1
- 208000006812 Velopharyngeal Insufficiency Diseases 0.000 description 1
- 206010066790 Velopharyngeal incompetence Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001800 adrenalinergic effect Effects 0.000 description 1
- 210000001909 alveolar process Anatomy 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 206010009259 cleft lip Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000002455 dental arch Anatomy 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001847 jaw Anatomy 0.000 description 1
- 210000000492 nasalseptum Anatomy 0.000 description 1
- 230000011164 ossification Effects 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000004876 tela submucosa Anatomy 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
本实用新型提供牙支持式上颌骨牵张器，涉及口腔颌骨矫治器械领域。该牵张器包括外壳、第一、第二伞形部件和固位杆；外壳设四个中心轴线共面、相交于外壳内腔中心的开口，相邻两开口中心轴线之间夹角为90˚；各伞形部件包括大端面呈球面状的伞齿轮及与该伞齿轮相连的圆管；第一伞形部件呈前后设置，伞齿轮处于外壳内腔、小端面与圆管相连、大端面设有凸台，圆管穿出前侧开口、凸台穿出后侧开口；第二伞形部件左右设置，伞齿轮处于外壳内腔、大端面与圆管相连，圆管分别从左右侧开口穿出；第一伞形部件的伞齿轮同时与第二伞形部件的伞齿轮啮合，使各固位杆同时向外移动。本实用新型牵张器能够同期矫治中重度上颌骨矢状水平双向发育不足。
The utility model provides a tooth-supported maxillary distractor, which relates to the field of oral and maxillary orthodontic appliances. The stretcher includes a casing, first and second umbrella-shaped parts and a retaining rod; the casing is provided with four openings whose central axes are coplanar and intersect at the center of the inner cavity of the casing, and the included angle between the central axes of the adjacent two openings is 90° ˚; Each bevel part includes a bevel gear whose large end face is spherical and a circular tube connected to the bevel gear; There is a boss, the round tube passes through the front opening, and the boss passes through the rear opening; the second umbrella-shaped component is arranged on the left and right, the bevel gear is located in the inner cavity of the shell, the large end face is connected to the round tube, and the round tube opens from the left and right sides respectively. Passing out; the bevel gear of the first bevel part meshes with the bevel gear of the second bevel part at the same time, so that each retaining rod moves outward at the same time. The distractor of the utility model can simultaneously correct moderate and severe maxillary sagittal bidirectional hypoplasia.
Description
Technical field
The utility model relates to oral cavity dento-maxillary appliance tool fields, and in particular to tooth-borne type maxilla Distraction Apparatus.
Background technique
Currently, dentomatillofacial detormity has become oromaxillo-facial region common disease, frequently-occurring disease, seriously affects patient's mouthful jaw function, outer
Have attractive appearance sight, often needs mouth cavity orthodontic or orthognathous correction to combine and rescues deformity.Part of patient's (especially Patients with Cleft Lip and Palate) is deposited
It is insufficient in more serious maxillary development, be mainly embodied in maxilla horizontal direction and sagittal to hypodevelopment, clinically
It is mainly shown as part upper jaw depressed deformity in face, the anti-jaw in upper mandibular posterior area or the serious crowded dislocation of lock jaw, maxillary dentition etc..Both
Toward such deformity is rescued, Chang Danchun uses tooth-borne type transverse direction expansion bow device or rescues arch wire horizontally to be developed with rescuing maxilla
It is insufficient.However, these treatment means are faced for the adult case of severe hypodevelopment in more or with the case of harelip
The effect is unsatisfactory for bed, and to simultaneous sagittal maxillary, to rescue basic invalid or curative effect little to insufficient, often needs
Other additional means such as orthognathic surgery is rescued.In recent years, stretching can be used to hypodevelopment for sagittal maxillary
Skeletonization technology carries out Surgical correction, first passes through the upper jaw for again sectioning preceding part with tooth-borne type Distraction Apparatus after the osteotomy of maxilla front
Bone stretching forward, or row cranium exterior fixing rack formula Distraction Apparatus is whole by maxilla directly after row maxilla LeFort I type osteotomy
Forward is to rescue maxillary development not foot deformity.However, such technology be also only capable of rescuing sagittal maxillary to hypodevelopment,
To existing maxilla horizontal direction hypodevelopment without obvious curative effects, patient still needs to other treatment means to rescue deformity.Therefore,
It is current that how the same period rescues middle severe sagittal maxillary, horizontal bidirectional hypodevelopment has become the clinic of current Oral and Maxillofacial Surgery
Technical problem, it would be highly desirable to solve.
Summary of the invention
The purpose of the utility model is to provide one kind can rescue middle severe sagittal maxillary, horizontal bidirectional development the same period not
The tooth-borne type maxilla Distraction Apparatus of foot.
The purpose of this utility model adopts the following technical scheme that realization.
A kind of tooth-borne type maxilla Distraction Apparatus is spherical shell, the first umbrella shape component, two the second umbrellas including inner cavity
Shape component, the maintenance bar being connected through a screw thread with each umbrella shape component；The front, rear, left and right side of the shell is respectively provided with one and opens
Mouthful, the central axis of this four openings is coplanar and intersects at the center of shell inner cavity, the folder between adjacent two openings central axis
Angle is 90；Each umbrella shape component include the spherical shape of large end face, small end face in planar bevel gear and with the bevel gear
The connected round tube in one end；The small end face of bevel gear is connected with round tube in the first umbrella shape component, large end face is equipped with boss, described
First umbrella shape component is in front and back to setting, and bevel gear is in shell inner cavity, and round tube is pierced by the front openings of shell, boss is worn
The rear openings of shell out；The large end face of bevel gear is connected with round tube in the second umbrella shape component, described two second umbrella shapes
Component is in left and right to setting, and bevel gear is in shell inner cavity, and the round tube of described two second umbrella shape components is respectively from shell
Left and right side opening is pierced by；The bevel gear of the first umbrella shape component is engaged with the bevel gear of two the second umbrella shape components simultaneously, the
The bevel gear of one umbrella shape component drives the bevel-gear rotating of two the second umbrella shape components, matches each maintenance bar relative to it simultaneously
The round tube of conjunction inwardly or outwardly moves.
In the present invention, the shell further include set on each opening, be used to support the positioning pipe of umbrella shape component.
In preferred technical solution, the shell installs shape by protrusion and groove structure by upper half-shell and housing lower half
At.
In the present invention, the upper half-shell and housing lower half are that plane where the central axis being open by 4 will
It is formed after shell divide.
In preferred technical solution, before the maintenance bar of described two second umbrella shape components corresponds respectively to second on the left of the upper jaw
Grind one's teeth in sleep between second molar on the left of the upper jaw palate side mucous membrane, on the right side of the upper jaw the second premolar teeth between the second molar of upper jaw right side
Palate side mucous membrane, the maintenance bar of the first umbrella shape component grinds before corresponding on the left of the upper jaw first on the right side of frist premolar to the upper jaw
Palate side mucous membrane between tooth.
In preferred technical solution, the angle between the first, second bevel gear conical surface and center axis thereof is 45.
In the present invention, the outer wall of the shell is spherical surface, diameter 9-11mm；The first, second umbrella shape tooth
Wheel outside diameter is 6-8mm, end diameter 3-4mm；The long 10-20mm of first round tube, outer diameter 3-4mm；Described second
The long 8-12mm of round tube, outer diameter 3-4mm；Each round tube is equipped with the internal screw thread that screw pitch is 1mm；The internal diameter of the positioning pipe is 3.2-
4.2mm。
In preferred technical solution, the maintenance bar is equipped with the external screw thread that screw pitch is 1mm, is fixed on mouth by metal base
It is intracavitary.
The utility model also provides a kind of rotator for cooperating the tooth-borne type maxilla Distraction Apparatus to use, the rotator
Including outer tube, third, the 4th and the 5th shaft in the outer tube of bevel gear and rotating support, the shaft includes
First, second, third shaft；One end of the first rotating shaft is connected with handle, the other end with third bevel gear, and described second
The both ends of shaft are connected with the 4th bevel gear respectively, and one end of the third shaft is equipped with and the first umbrella in the Distraction Apparatus
The compatible groove of the boss of shape component, the other end are connected with the 5th bevel gear, and first and third shaft is opposite and sets in parallel
It sets, the second shaft is vertical with first, third shaft and two the 4th bevel gears are nibbled with third bevel gear and the 5th bevel gear respectively
It closes；The handle and groove are exposed to outside the outer tube.
The utility model has the advantages that
First bevel gear of the first umbrella shape component while and left and right sides in the utility model tooth-borne type maxilla Distraction Apparatus
Second bevel gear of the second umbrella shape component is meshed, and therefore, can drive two the second umbrella shapes by rotating the first umbrella shape component
Component rotation, the first, second maintenance bar is pushed out, the tensile stress of generation promote sagittal, the jawbone on horizontal twocouese and
The regeneration of surrounding soft tissue is to repair bony defect, rescue deformity.The utility model tooth-borne type maxilla Distraction Apparatus is being performed the operation
Maxilla level, the two-way hypodevelopment of sagittal can not only be rescued under auxiliary the same period, for merging the disease of the serious crowded dentition of the upper jaw
The avoidable Orthodontics extraction Extraction Cases of example keep denture complete and oral cavity function as far as possible；Advantage is had more for Patients with Cleft Lip and Palate,
It can avoid the velopharyngeal incompetence that may cause after simple upper jaw Le Fort I type osteotomy exacerbation, retain more upper jaw days
Right permanent teeth is to restore good occluding relation.
Detailed description of the invention
Fig. 1 shows the cross-sectional view of the utility model, and 11- shell, 13- is raised, 14- positioning pipe, 2 first umbrella shape components,
The first round tube of 21-, the first bevel gear of 22-, 23- the first maintenance bar, 24- boss, 3- the second umbrella shape component, the second round tube of 31-,
The second bevel gear of 32-, 33- the second maintenance bar.
Fig. 2 shows the top view of the first umbrella shape component, and wherein a is the outside diameter of the first bevel gear, and b is the first umbrella tooth
The end diameter of wheel.
Fig. 3 shows the cross-sectional structure schematic diagram of spherical housing, wherein 11- shell, 14- positioning pipe.
Fig. 4 shows the top view of the second umbrella shape component, and wherein a is the outside diameter of the second bevel gear, and b is the second umbrella tooth
The end diameter of wheel.
Fig. 5 rotator structure schematic diagram, 51- outer tube, 52- first rotating shaft, 53- third bevel gear, 54- handle, 55- second
Shaft, the 4th bevel gear of 56-, the 5th bevel gear of 57-, 58- third shaft, 59- groove.
Fig. 6, which is showing, uses Distraction Apparatus to rescue upper jaw sagittal, horizontal bidirectional hypodevelopment (with typical unilateral lip and palate cleft trouble
For person) schematic diagram, wherein second molar on the left of the 611- upper jaw, first molar on the left of the 612- upper jaw, the on the left of the 613- upper jaw
Two premolar teeths, 614- upper jaw left side frist premolar, 615- tooth tongue knuckle, 617- upper jaw right side frist premolar, the 618- upper jaw
The second premolar teeth of right side, 620- upper jaw right side first molar 621- upper jaw right side second molar, the local retainer in the right side 622-
Base, the base of the local retainer in the front side 623-, the base of the local retainer in the left side 624-, 625- Distraction Apparatus.
The position of part bone section and left and right sides bone section before the upper jaw after Fig. 7 display stretching.
Specific embodiment
The structure of 1 tooth-borne type maxilla Distraction Apparatus of embodiment
Tooth-borne type maxilla Distraction Apparatus and rotator structure used in conjunction with are retouched in conjunction with Figure of description
It states.
1. the structure of tooth-borne type maxilla Distraction Apparatus
It is described in conjunction with the structure of Fig. 1-4 pairs of tooth-borne type maxilla Distraction Apparatus.The Distraction Apparatus includes that inner cavity is spherical
Shell 11,2, two the second umbrella shape components 3 of the first umbrella shape component, the maintenance bar being connected through a screw thread with each umbrella shape component.Outside
The front, rear, left and right side of shell is respectively provided with a circular opening, and the central axis of this four openings is coplanar and intersects in shell
The center of chamber, it is adjacent two opening central axis between angle be 90；Each umbrella shape component includes the spherical shape of large end face, small end
Face is in planar bevel gear and the round tube being connected with the bevel gear one end, for the convenience of description, by the first umbrella shape component
Bevel gear, round tube are respectively designated as the first bevel gear 22, the first round tube 21；Bevel gear, round tube difference in second umbrella shape component
It is named as the second bevel gear 32, the second round tube 31；The maintenance bar being connected with the first umbrella shape component, the second umbrella shape component is named respectively
For the first, second maintenance bar 23,33；In first umbrella shape component the small end face of the first bevel gear be connected with the first round tube, large end face
Equipped with boss 24, the first umbrella shape component is in front and back to setting, and the first bevel gear is in shell inner cavity, and the first round tube is pierced by shell
Front openings, boss be pierced by the rear openings of shell；The large end face of second bevel gear is connected with the second round tube, two the second umbrellas
Shape component is in left and right to setting, and the second bevel gear is in shell inner cavity, and two the second round tubes are opened from the left and right sides of shell respectively
Mouth is pierced by；First bevel gear is engaged with two the second bevel gears simultaneously, and the first bevel gear drives two the second bevel-gear rotatings, is made
First, second maintenance bar inwardly or outwardly moves simultaneously.Inwardly or outwardly movement refers to that each maintenance bar is matched relative to it herein
The round tube of conjunction inwardly or outwardly moves.Boss cross section in first bevel gear is hexagon, passes through the boss and rotator (knot
After structure is described in) cooperation of groove, rotate the first umbrella shape component.Due to the first bevel gear of the utility model Distraction Apparatus and two
Second bevel gear is meshed, and the first bevel gear drives two the second bevel-gear rotatings, makes the first, second maintenance bar while being moved out
It is dynamic, the tensile stress of generation promote sagittal, horizontal bidirectional jawbone and the regeneration of surrounding soft tissue with repair bony defect, rescue it is abnormal
Shape.
Shell further includes positioning pipe 14 set on each opening, being used to support umbrella shape component, such first, second round tube
It is not easy to shift, it is more stable.Upper half-shell and housing lower half are formed after plane segmentation where the central axis that shell is open by 4,
Upper half-shell and housing lower half are installed by protrusion 13 and groove structure and to form a complete shell, in favor of first, second
The installation of umbrella shape component.Positioning pipe forms semicanal after being divided by the plane, and fifty-fifty pipe outer wall of upper half-shell is symmetrically respectively provided with
Fifty-fifty pipe outer wall of groove, housing lower half is symmetrically arranged with protrusion, and groove is adapted with protrusion.It can using protrusion and groove structure
Simply and easily two hemispherical shells are installed.Angle between the first, second bevel gear conical surface and center axis thereof
It is 45, if clinic has special requirement, also may customize the bevel gear of different tapers, and cooperate the spherical shape for changing correspondingly opening direction
Shell then can get and need designed individuation Distraction Apparatus according to patient's degree of deformity and treatment.
The second maintenance bar being connected with the second umbrella shape component for being set to left side, is fixed on mouth by left side part retainer
On the left of chamber；The second maintenance bar being connected with the second umbrella shape component for being set to right side, is fixed on mouth by right side part retainer
On the right side of chamber.The first maintenance bar that is connected with the first umbrella shape component is fixed on front side of oral cavity by front side part retainer.
The outer wall of shell is spherical surface, and the diameter of outer wall is 10mm.The outside diameter a of first, second bevel gear is 7mm, small
End diameter b is 4mm.The length of first round tube is 15mm, outer diameter 4mm.The length of second round tube is 10mm, outer diameter 4mm.Respectively
Round tube is equipped with the internal screw thread that screw pitch is 1mm.The internal diameter of positioning pipe on shell is 4.2mm.It is 1mm's that each maintenance bar, which is equipped with screw pitch,
External screw thread is fixed in oral cavity by metal base.
Each component part of Distraction Apparatus selects common cochrome to cast, with proof strength and precision.
Front side, left/right side part retainer are that common cochrome is cast, and are removable.Front side is locally solid
The Anchorage molar of position body is frist premolar on the right side of frist premolar on the left of the upper jaw to the upper jaw.The Anchorage molar of left side part retainer is
The upper jaw the second premolar teeth in left side is to left side maxillary second molar.The Anchorage molar of right side part retainer be right maxillary second before grind
Tooth is to right maxillary second molar.Each part retainer includes the snap ring for being set to Anchorage molar neck, is set to Anchorage molar and stings
The rest in conjunction face, the base being bonded with Anchorage molar palate side mucous membrane, snap ring, rest and base, which are connected with each other, to be integrated.Each part is solid
Position body is connected by base with maintenance bar.Therefore, the maintenance bar of two the second umbrella shape components corresponds respectively to second on the left of the upper jaw
Premolar teeth between second molar on the left of the upper jaw palate side mucous membrane, on the right side of the upper jaw the second premolar teeth to upper jaw right side second molar it
Between palate side mucous membrane, the maintenance bar of the first umbrella shape component corresponds on the left of the upper jaw frist premolar on the right side of frist premolar to the upper jaw
Between palate side mucous membrane.
Local retainer and the first, second maintenance bar can carry out monoblock cast.
2. the structure of rotator
Rotator (see figure 5) include outer tube 51, third, the 4th and the 5th bevel gear 53,56,57 and rotating support exist
Shaft in outer tube, shaft include the first, second, third shaft 52,55,58.One end of first rotating shaft is with handle 54, another
One end is connected with third bevel gear；The both ends of second shaft are connected with the 4th bevel gear respectively；One end of third shaft is set
There are groove 59 compatible with the boss of the first umbrella shape component in Distraction Apparatus, the other end to be connected with the 5th bevel gear；First and third turn
Axis is opposite and is arranged in parallel, the second shaft is vertical with first, third shaft and two the 4th bevel gears respectively with third bevel gear
It is engaged with the 5th bevel gear.Handle and groove are exposed to outside outer tube.Due to two the 4th bevel gears respectively with third bevel gear
It is engaged with the 5th bevel gear, rotating handles, second, third shaft can be driven to rotate, it is final that tooth-borne type maxilla is driven to lead
First umbrella shape component of prop rotates, and controls Distraction Apparatus.
The long 80mm of first rotating shaft, the long 5mm of the second shaft, the long 8mm of third shaft, each shaft cross section is circle.Each turn
The diameter of axis is 4mm.
The application method and effect of 2 tooth-borne type maxilla Distraction Apparatus of embodiment
It is to illustrate embodiment with sagittal maxillary, horizontal bidirectional hypodevelopment typical case-unilateral lip and palate cleft patient
The specifically used mode of Distraction Apparatus in 1.Typical unilateral lip and palate cleft patient maxillary dentition model, as shown in fig. 6, showing as dental arch contracting
Narrow, crowded dentition etc., cause above-mentioned clinical manifestation occur the main reason for be sagittal maxillary, horizontal bidirectional hypodevelopment.
The step of being rescued using Distraction Apparatus and principle: operation carries out under the conditions of general anesthesia, and hand is carried out after routine disinfection drape
Art.After sterilizing in oral cavity, the 5 adrenergic physiological saline containing million are injected to reduce bleeding, after action along upper jaw vestibular ditch
Mucous membrane, submucosa and periosteum are cut along 5mm above upper jaw vestibular ditch between the two sides upper jaw the 1st is ground one's teeth in sleep.Use periosteum stripping
Son along periosteum lower layer turn over valve exposure maxilla before lateral wall, lateral wall of nasal cavity is inwardly removed by apertura piriformis edge, nose bottom is dug and sticks
Film exposes nasal cavity, digs disconnected nasal septum connection.With reflex saw along similar maxilla Le Fort I type osteotomy line (from apertura piriformis water
Direction two sides extend horizontally to the connection of the wing upper jaw on flat, alveolar process) section lateral wall before maxilla.With osteotome out of mouth upper jaw knot
The connection of the wing upper jaw is chiseled at section upwards, but fractures decline (down-fracture) without maxilla.According to the upper of Design
Jawbone side sections position, and piezosurgery osteotomy osteotomy is applied between adjacent two root of the tooth, carries out to Palatal suture direction.To the equal base in two sides
Originally after sectioning, it is inserted into osteotomy gap with 8mm osteotome, is gently agitated with part before thorough detachment, loosening maxilla.Protect nose bottom glutinous
Film, with piezosurgery osteotomy, part sections part rear portion in palate along palate under direct-view, and 8mm osteotome is inserted into osteotomy gap, gently agitates with thorough
Not part (Patients with Cleft Lip and Palate not being merged since its palatine is congenital there are crack, which can omit) after the detachment left and right sides upper jaw of bottom.
Distraction Apparatus in embodiment one is worn in entrance, the first maintenance bar is together by a threaded connection with the first round tube, the second maintenance
Bar is together by a threaded connection with the second round tube, then installs shell, attempts to pass through the first umbrella shape component using rotator
Boss rotates the first bevel gear and the second bevel gear, and whether the first maintenance bar of observation is outside (relative to mouth relative to the first round tube
Forward for chamber) it is mobile, left side the second maintenance bar whether relative to the second round tube of left side outward (for oral cavity be to
It is left) side movement, whether right side the second maintenance bar is mobile outward (being to the right for oral cavity) relative to the second round tube of right side,
After osteotomy skeletonization and Distraction Apparatus to be confirmed can normally function, Distraction Apparatus is adhered to preoperative choosing with binder by suture wound
The upper jaw abutment selected.
Start within postoperative 7 days to carry out stretching, it is daily to adjust Distraction Apparatus twice, it is adjusted: passing through as follows every time
Rotator, which rotates the first bevel gear, makes the first maintenance bar move 0.8-1.2 mm forwards, and left side the second maintenance bar moves to the left
0.8-1.2 mm, right side the second maintenance bar move 0.8-1.2 mm to the right.Until the distance of upper jaw stretching reaches Design
Position, such as Fig. 7.After stretching, Distraction Apparatus is placed in mouth and is consolidated 4-5 months, removes and leads after new bone formation calcification
Prop finally carries out conventional orthodontic therapy treatment.It in special circumstances can be according to the serious journey of patient's sagittal and horizontal direction deformity
Degree, design individuation Distraction Apparatus can reach by adjusting the number of gears ratio of umbrella shape component in sagittal direction and horizontal direction
Different stretching moving distances, rescue the upper jaw deformity different degrees of in sagittal and horizontal direction.
Claims (10)
1. a kind of tooth-borne type maxilla Distraction Apparatus, it is characterised in that shell, the first umbrella shape component, two including inner cavity for spherical shape
A second umbrella shape component, the maintenance bar being connected through a screw thread with each umbrella shape component；The front, rear, left and right side of the shell is respectively provided with
One opening, the central axis of this four openings are coplanar and intersect at the center of shell inner cavity, adjacent two openings central axis it
Between angle be 90；Each umbrella shape component include the spherical shape of large end face, small end face in planar bevel gear and with it is described
The connected round tube in bevel gear one end；The small end face of bevel gear is connected with round tube in the first umbrella shape component, large end face is equipped with convex
Platform, the first umbrella shape component is in front and back to setting, and bevel gear is in shell inner cavity, and round tube is pierced by front side of shell and opens
Mouth, boss are pierced by the rear openings of shell；The large end face of bevel gear is connected with round tube in the second umbrella shape component, described two
In left and right to setting, bevel gear is in shell inner cavity second umbrella shape component, the round tube difference of described two second umbrella shape components
It is pierced by from the left and right side of shell opening；The bevel gear of the first umbrella shape component umbrella tooth with two the second umbrella shape components simultaneously
Wheel engagement, the bevel gear of the first umbrella shape component drive the bevel-gear rotating of two the second umbrella shape components, make each same phase of maintenance bar
Round tube engaged therewith is inwardly or outwardly moved.
2. tooth-borne type maxilla Distraction Apparatus according to claim 1, it is characterised in that the shell further includes being set to respectively to open
Positioning pipe at mouthful, being used to support umbrella shape component.
3. according to tooth-borne type maxilla Distraction Apparatus described in claims 2, it is characterised in that the internal diameter of the positioning pipe is
3.2-4.2mm。
4. tooth-borne type maxilla Distraction Apparatus according to claim 1 or claim 2, it is characterised in that the shell by upper half-shell and
Housing lower half is installed to be formed by protrusion and groove structure.
5. tooth-borne type maxilla Distraction Apparatus according to claim 4, it is characterised in that the upper half-shell and housing lower half
Plane where being the central axis being open by 4 will be formed after shell divide.
6. tooth-borne type maxilla Distraction Apparatus according to claim 5, it is characterised in that described two second umbrella shape components
Maintenance bar corresponds respectively to the second premolar teeth on the left of the upper jaw to the palate side mucous membrane between second molar on the left of the upper jaw, upper jaw right side the
For two premolar teeths to the palate side mucous membrane between second molar on the right side of the upper jaw, it is left that the maintenance bar of the first umbrella shape component corresponds to the upper jaw
Palate side mucous membrane on the right side of side frist premolar to the upper jaw between frist premolar.
7. tooth-borne type maxilla Distraction Apparatus according to claim 6, it is characterised in that the first, second bevel gear conical surface
Angle between center axis thereof is 45.
8. tooth-borne type maxilla Distraction Apparatus according to claim 7, it is characterised in that the round tube in the first umbrella shape component is
First round tube；Round tube in second umbrella shape component is the second round tube；The outer wall of the shell is spherical surface, diameter 9-11mm；Institute
Stating the first, second bevel gear outside diameter is 6-8mm, end diameter 3-4mm；The long 10-20mm of first round tube, outer diameter
For 3-4mm；The long 8-12mm of second round tube, outer diameter 3-4mm；Each round tube is equipped with the internal screw thread that screw pitch is 1mm.
9. tooth-borne type maxilla Distraction Apparatus according to claim 8, it is characterised in that it is 1mm that the maintenance bar, which is equipped with screw pitch,
External screw thread, be fixed in oral cavity by metal base.
10. the rotator that tooth-borne type maxilla Distraction Apparatus described in a kind of cooperation claim 1 uses, it is characterised in that including outer
Casing, third, the 4th and the 5th shaft in the outer tube of bevel gear and rotating support, the shaft includes first,
Second, third shaft；One end of the first rotating shaft is connected with handle, the other end with third bevel gear, second shaft
Both ends be connected respectively with the 4th bevel gear, one end of the third shaft is equipped with and the first where umbrella-shaped portion in the Distraction Apparatus
The compatible groove of the boss of part, the other end are connected with the 5th bevel gear, and first and third shaft is opposite and is arranged in parallel, the
Two shafts are vertical with first, third shaft and two the 4th bevel gears are engaged with third bevel gear and the 5th bevel gear respectively；Institute
It states handle and groove is exposed to outside the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136560.5U CN208741172U (en) | 2017-09-06 | 2017-09-06 | Tooth-supported maxillary distractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136560.5U CN208741172U (en) | 2017-09-06 | 2017-09-06 | Tooth-supported maxillary distractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208741172U true CN208741172U (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721136560.5U Withdrawn - After Issue CN208741172U (en) | 2017-09-06 | 2017-09-06 | Tooth-supported maxillary distractor |
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| Country | Link |
|---|---|
| CN (1) | CN208741172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468359A (en) * | 2017-09-06 | 2017-12-15 | 南京医科大学附属口腔医院 | Tooth-borne type maxilla Distraction Apparatus |
-
2017
- 2017-09-06 CN CN201721136560.5U patent/CN208741172U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468359A (en) * | 2017-09-06 | 2017-12-15 | 南京医科大学附属口腔医院 | Tooth-borne type maxilla Distraction Apparatus |
| CN107468359B (en) * | 2017-09-06 | 2023-04-25 | 南京医科大学附属口腔医院 | tooth-supported maxillary distractor |
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