CN107518954A - Distraction device - Google Patents
Distraction device Download PDFInfo
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- CN107518954A CN107518954A CN201710832779.7A CN201710832779A CN107518954A CN 107518954 A CN107518954 A CN 107518954A CN 201710832779 A CN201710832779 A CN 201710832779A CN 107518954 A CN107518954 A CN 107518954A
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- Prior art keywords
- anchorage
- distraction device
- patient
- band
- anchorage bar
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- 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
Abstract
The present invention relates to mouth medical technology field, discloses a kind of distraction device, including：At least two bands, the two bands are socketed on the tooth at left and right sides of patient respectively；At least one anchorage nail, is fixed on the maxilla of patient；With the anchorage bar of the corresponding setting of anchorage nail, anchorage portion is provided with anchorage bar, anchorage portion is used to support to nail in anchorage；Expand bow device, for providing the tractive force of distraction device；Each band is connected on expansion bow device by the connecting rod to be connected one to one with band, connecting rod；Expand bow device to exert a force to band and anchorage bar, and traction is formed to the jawbone of patient.The present invention is easy to process, and clinical manipulation is simple, while has good traction effect.
Description
Technical field
The present invention relates to mouth medical technology field, more particularly to a kind of distraction device.
Background technology
Distraction osteogenesis be according to it is stable and slowly under distraction force effect, the differentiation of force area undifferentiated mesenchymal cell
A kind of endogenous bone tissue engineering technique being able to expanding capacity based on the principle that activates.It utilizes distraction device institute
The bone section of the caused gradual traction surgical incision of external force, forms new bone apposition, while cause by distraction force between bone stump
The adaptive change of the surrounding tissue including skin, blood vessel, nerve, cartilage and periosteum enable it synchronous with bone tissue
Growth.
At present, clinical practice of the distraction osteogenesis in cranium jaw face is more and more extensive.Distraction osteogenesis is widely used
In the treatment of Maxillary region developmental deformity, as hemifacial is lopsided, the maxillary development caused by serious harelip is not complete, tumour or outer
Jaw defect, the depressed deformity of Middle face and the hypodevelopment of facial area and asymmetry caused by wound etc., or even be also used for
Other related symptoms such as the treatment of OSAS.
It is being applied to maxilla severe developmental deficiency or harelip companion maxillary development not for upper jaw leading portion distraction osteogenesis
During the treatment of sufficient patient, usually through oral maxillofacial surgery in upper jaw leading portion Horizontal osteotomy, ground before maxillary first molar is with second
Between tooth, vertical osteotomy between upper jaw premolar teeth or between maxillary first premolar and canine tooth.Then using leading suitable for upper jaw leading portion
Open into bone device and carry out distraction osteogenesis, increase maxilla leading portion bone amount to obtain the space needed for releasing crowded dentition, before improvement
Tooth covers, and improves Soft tissue change to a certain extent.
The existing distraction device suitable for upper jaw leading portion is broadly divided into the outer distraction osteogenesis of cranium exterior fixing rack formula
Device (Rigid External Distractor, RED) and intraoral distraction device (Intraoral Appliance, IA)
Deng.
For the outer distraction device of cranium exterior fixing rack formula, distraction device need to be by skull and the upper jaw
Bone is placed titanium plate and is fixed, and caused wound is larger, and also needs to once be performed the operation again when removing.In addition, lead
Into bone device part it is larger, easily cause and release or cause wound, and distraction device is in the traction up to half a year
Non-dismountable during treatment, the daily life influence on patient is very big, therefore the psychological acceptance level of patient is relatively low.
And due to being arranged on intraoral distraction device for the distraction device outside cranium, piece volumes are small
And positioned at intraoral, outward appearance is not influenceed, disassembling section is more easy, and wound is small, and wound accident incidence is low, to the life shadow of patient
Sound is small, gradually receives orthodontist and the favor of patient, turns into the mainstream scheme treated at present.
Intraoral distraction device of the prior art is mainly tooth-borne type distraction device.It is generally by viscous
Connect agent to be fixed on maxillary teeth, and tractive force is applied on tooth, conduct to jawbone, so as to push to jaw leading portion to reach
It is dynamic.But during using this distraction device, tooth can also produce displacement while jawbone moves, and subsequently also need to moving
The tooth of position is corrected again.
The content of the invention
It is an object of the invention to provide a kind of distraction device.The present invention is easy to process, and clinical manipulation is simple, simultaneously
With good traction effect.
In order to solve the above problems, the invention provides a kind of distraction device, for being arranged on the upper jaw of patient,
Including：At least two bands, the two bands are socketed on the tooth at left and right sides of patient respectively；
At least one anchorage nail, is fixed on the maxilla of patient；
With the anchorage bar of the corresponding setting of anchorage nail, anchorage portion is provided with anchorage bar, anchorage portion is used to support in anchorage
Nail on；
Expand bow device, for providing the tractive force of distraction device；
Each band is connected on expansion bow device by the connecting rod to be connected one to one with band, connecting rod；
Expand bow device to exert a force to band and anchorage bar, and traction is formed to the jawbone of patient.
As being arranged on intraoral distraction device, small volume of the invention, without setting mouth exterior part, for suffering from
The outward appearance of person and life influence smaller.
In the present invention, by being followed closely by anchorage, tractive force is applied directly on maxilla by anchorage nail, and is promoted
The leading portion of maxilla shifts forward so that avoids drifting tooth while the leading portion movement of maxilla, its traction effect is excellent
In tooth-borne type tractor of the prior art.
In addition, in the distraction device of the present invention, tractive force is transmitted due to by means of band and anchorage nail simultaneously,
Therefore for the distraction device of tooth-borne type of band is relied only on, the position influence on tooth is small, and clinical behaviour
Difficulty is relatively low when making, and while tooth reaction is farthest reduced, also add effective distraction osteogenesis amount of maxilla.
Preferably, anchorage portion supports for anchorage bar towards the recess formed away from the direction that anchorage is followed closely depression, anchorage nail
Hold on recess；
Or anchorage portion is the ring washer being arranged on anchorage bar, anchorage nail hammers into the upper of patient through ring washer
Jawbone.
Using recess for the anchorage portion of annular, simple shape, possess the more preferable free degree and flexibility ratio.
The maintenance of device can then be increased using ring washer, possess good stability.
In addition, preferably, anchorage bar convexes to form arc towards the direction that anchorage is followed closely.The anchorage bar for forming arc can
Prevent it from being deformed upon with the output of tractive force, possess more preferable support strength on the premise of same thickness.
In addition, preferably, anchorage portion at least two and the two anchorage portions are respectively distributed to the two of the upper jaw of patient
Side.Set two anchorage portions to balance the tractive force of maxillar part, possess more preferable traction effect.
Preferably, the both ends of anchorage bar are connected directly between on expansion bow device.It is simple to be directly connected to formed structure, processes
Difficulty is very low.
Or preferably, band is at least four, there are two bands to be socketed in the first of the left and right sides of patient respectively
Grind one's teeth in sleep or second molar on.Because first molar and second molar anchorage are strong, it is more difficult to it is mobile, using being socketed in first molar or the
Two grind one's teeth in sleep on band, good support and auxiliary traction can be provided.
Another two band is socketed on the premolar teeth or canine tooth of the left and right sides of patient respectively, the both ends of anchorage bar respectively and
Two connecting rods of connection corresponding with the two bands are connected.
Maintenance point can be increased using four bands so that Distraction Apparatus is not susceptible to loosen or come off, and then causes the upper jaw
The pulling motion of bone is more smooth.
Anchorage bar is connected in connecting rod, tractive force is passed on by connecting rod, is directly connected to compared to by anchorage bar
For expanding on bow device, reduce the occupancy for the output interface for expanding bow device, and can according to the angle of connecting rod and anchorage bar come
The ratio of the size of the tractive force of the suffered tractive force of anchorage nail and band is adjusted, it is very convenient.Furthermore, it is understood that by anchorage bar
It is connected with the connecting rod being connected on patient's premolar teeth or canine tooth, while the support of anchorage bar stabilization is given, utilizes
The shape and intensity of anchorage bar can also be better protected from the displacement of premolar teeth or canine tooth.
In addition, preferably, distraction device also includes, with expanding the connector for bending device and being connected, being provided with connector
Blind hole with certain depth；Connecting rod inserts blind hole, is connected with expanding bow device.
Anchorage bar can be changed according to the process for the treatment of by set blind hole, it is more personalized so as to provide
Customization treatment.
Furthermore, it is understood that preferably, distraction device also includes distance piece, distance piece is arranged in blind hole, is used for
Adjustment anchorage bar gos deep into the depth of blind hole.The length of anchorage bar stretching can be adjusted by setting distance piece, therefore can be reduced or be disappeared
Except the demand for changing anchorage bar, cost is greatly reduced.
Likewise, preferably, when the both ends of anchorage bar are connected directly between on expansion bow device, anchorage bar can also be divided into
With expanding the back segment that is directly connected to of bow device and being provided with the leading portion in anchorage portion；
Distraction device also includes the connector being arranged on back segment, is provided with connector with the blind of certain depth
Hole；
The both ends insertion blind hole of leading portion, is fixed on back segment；
Distraction device also includes distance piece, and distance piece is arranged in blind hole, gos deep into the depth of blind hole for adjusting leading portion
Degree.
The length of the leading portion of anchorage bar stretching can be equally adjusted by blind hole and distance piece.
In addition, preferably, also set on two bands being socketed on the premolar teeth or canine tooth of the left and right sides of patient
There is draw hook, draw hook is used to be connected with external traction mask.It can coordinate dismountable external traction mask by draw hook,
Better control over the anterior lead of maxilla.
Brief description of the drawings
Fig. 1 is the schematic diagram of patient's upper jaw when first embodiment of the invention does not install distraction device；
Fig. 2 is the schematic diagram that first embodiment of the invention is mounted with patient's upper jaw after distraction device；
Fig. 3 is the schematic diagram that second embodiment of the invention is mounted with patient's upper jaw after distraction device；
Schematic diagram when Fig. 4 is the second, the 8th embodiment connecting rod insertion blind hole of the invention；
Fig. 5 a are three, the 9th embodiment connecting rods insertion blind holes of the invention, and schematic diagram when distance piece is pad；
Fig. 5 b are three, the 9th embodiment connecting rods insertion blind holes of the invention, and schematic diagram when distance piece is spring；
Fig. 6 is the schematic diagram that four embodiment of the invention is mounted with patient's upper jaw after distraction device；
Fig. 7 is the schematic diagram that fifth embodiment of the invention is mounted with patient's upper jaw after distraction device；
Fig. 8 is the schematic diagram that sixth embodiment of the invention is mounted with patient's upper jaw after distraction device；
Fig. 9 is the schematic diagram that seventh embodiment of the invention is mounted with patient's upper jaw after distraction device；
Figure 10 is the schematic diagram that eighth embodiment of the invention is mounted with patient's upper jaw after distraction device；
Figure 11 is the schematic diagram that tenth embodiment of the invention is mounted with patient's upper jaw after distraction device.
Description of reference numerals：
1- bands；2- anchorage is followed closely；3- maxillas；4- anchorage bars；4a- anchorage portion；4b- leading portions；4c- back segments；5- expands bow device；
6- connecting rods；7- connectors；7a- blind holes；8- distance pieces；9- draw hooks.
Embodiment
With reference to Figure of description, the present invention is described in further detail.
Embodiment one
It is shown in Figure 1, for the patient of maxillary development deformity, because less jawbone is not enough to provide enough
Space sprout tooth, its denture is generally serious uneven, at the same face also can show in various degree deformity, it is necessary to specific aim
Treated on ground.
The first embodiment of the present invention provides a kind of distraction device, shown in Figure 2 in treatment, is arranged on
On the intraoral upper jaw of patient.It includes：At least two bands 1, the two bands 1 are socketed at left and right sides of patient respectively
On tooth.
Those of ordinary skill in the art understand, in the present embodiment, the tooth that band 1 can be selected to be fixed as needed
Tooth.For example, with reference to shown in Fig. 2, band 1 can be fixed on the first molar of the left and right sides of patient.Certain band 1 can also
Be socketed in respectively on the second molar of the left and right sides of patient, or, as further adding, can also in first molar and
Second molar top sets band.Obviously, band 1 can be fixed by physical arrangement and tooth, and be obtained by binding agent
To being further firmly fixed.
Because first molar and second molar anchorage are strong, relative difficult movement, using be socketed in first molar or second mill
Band 1 on tooth, can provide good support and auxiliary traction.
Distraction device also includes：
At least one anchorage nail 2, is fixed on the maxilla 3 of patient；
The anchorage bar 4 of 2 corresponding settings is followed closely with anchorage, anchorage portion 4a is provided with anchorage bar 4, anchorage portion 4a is used to support
On anchorage nail 2.
Expand bow device 5, for providing the tractive force of distraction device；
Each band 1 is connected on expansion bow device 5 by the connecting rod 6 to be connected one to one with band 1, connecting rod 6；
Expand bow device 5 to exert a force to band 1 and anchorage bar 4, and traction is formed to the jawbone of patient.It is of the present invention to expand bow
Device 5 can be expansion screw, naturally it is also possible to according to circumstances expand bow device from the expansion bow device 5 of other species, such as Fourth Ring.Can
So that the both ends of anchorage bar 4 are connected directly between on expansion bow device 5 so that expand bow device 5 directly can exert a force to anchorage bar 4.
In the present embodiment, signified maxilla 3 can especially refer to the front section of maxilla 3, certainly, in the upper jaw
During other parts implantation anchorage nail 2 of bone 3, the requirement of this patent can be also substantially met.The both ends of anchorage bar 4 are direct
It is connected on expansion bow device 5, the structure formed is simple, and difficulty of processing is very low.
Wherein, anchorage portion 4a is the ring washer being arranged on anchorage bar 4, and anchorage nail 2 hammers into patient through ring washer
Maxilla 3.The maintenance of device can then be increased using ring washer, possess good stability.Pass through shaft-like anchorage
Bar 4 can realize the transmission and expression of tractive force well.
Shown in Figure 2 in addition, in the present embodiment, connecting rod 6 is two, and this two connecting rods 6 are respectively with two
Individual band 1 connects.Certainly, the quantity of connecting rod 6 can increase according to the actual requirements, but preferably no more than four, in order to avoid increase
The difficulty of processing of anchorage bar 4, improve cost.
In addition, it is noted that in the present embodiment, shown in Figure 2, distraction device is not provided with labial teeth
Connection.Therefore after the mission of distraction osteogenesis is completed, can postpone dismantling distraction device, and enter follow-up NITI Ω arch wire
Stage.Now, the distraction device can also play a part of strengthening the anchorage of backteeth, prevent backteeth from being sent out when coming into line labial teeth
Move before death.
A kind of implantation and treatment flow of the present invention can be as follows：
1st, according to the state of an illness of patient, therapeutic scheme and the construction of distraction device are provided, plaster cast letter can be utilized
Whether single checking shape matches.Wherein distraction device can make according to the plaster cast personalization of sufferers themselves, and
Operation consent device is tried on, in place to be confirmed whether.
2nd, osteotomy is being carried out to patient using oral maxillofacial surgery.
3rd, in the intraoral installation distraction device of patient, band 1 can be first installed on corresponding tooth, then in anchorage
Portion 4a, that is, the through hole implantation anchorage nail 2 of ring washer.When mounted, can on band 1 applied adhesive, and and tooth
Tooth is adhesively fixed.
4th, reinforced using key to expanding bow device 5.The elastic potential energy that expansion bow device 5 is obtained will be by connector 7 and anchorage bar 4
It is applied to tooth and anchorage nail 2 so that the maxilla 3 of patient is constantly pulled.
As being arranged on intraoral distraction device, small volume of the invention, without setting mouth exterior part, for suffering from
The appearance of person and life influence smaller.
In the present invention, by following closely 2 by anchorage, tractive force is applied directly on maxilla 3 by anchorage nail 2, and
The leading portion of maxilla 3 is promoted to shift forward so as to avoid drifting tooth while the leading portion movement of maxilla 3, it draws
Effect is better than tooth-borne type tractor of the prior art.
In the distraction device of the present invention, tractive force is transmitted due to by means of band 1 and anchorage nail 2 simultaneously, because
This is for the distraction device of tooth-borne type of band 1 is relied only on, and the position influence on tooth is small, and clinical manipulation
When difficulty it is relatively low, farthest reduce tooth reaction while, also add effective distraction osteogenesis amount of maxilla.
Embodiment two
Second embodiment of the present invention provides a kind of distraction device, and second embodiment is first embodiment
Further improvement, mainly the improvement is that, shown in Figure 3 in second embodiment of the present invention, the quilt of anchorage bar 4
It is divided into the back segment 4c being directly connected to expansion bow device 5 and the leading portion 4b for being provided with anchorage portion 4a；
Referring to shown in Fig. 3 and Fig. 4, distraction device also includes the connector 7 being arranged on back segment 4c, on connector 7
It is provided with the blind hole 7a with certain depth；Wherein, connector 7 can be fixed on back segment by welding or integrally formed mode
On 4c.
Leading portion 4b both ends insertion blind hole 7a, is fixed on back segment 4c.
Because certain mechanics fatigue in itself be present in anchorage bar 4 and connecting rod 6.With the passage of the process for the treatment of, mechanics
Fatigue may aggravate so that trickle deformation occurs for anchorage bar 4 and connecting rod 6, and this deformation may also cause anchorage nail 2 with expanding
The distance for bending device 5 becomes big.
Therefore, in the present embodiment, this can be adapted to by changing anchorage bar 4, or increase leading portion 4b length
The increase of one distance so that expanding bow device 5 can remain that maximum mechanics is exported and worked.
In summary, the leading portion 4b of anchorage bar 4 can be changed according to the process for the treatment of by set blind hole 7a, so as to
More personalized customization treatment can be provided.The anchorage bar 4 and the material property of connecting rod 6 that can also simultaneously reduce pair
It is required that reduce the material cost of distraction device.
Embodiment three
Third embodiment of the present invention provides a kind of distraction device, and the 3rd embodiment is second embodiment
Further improvement, mainly the improvement is that, in third embodiment of the present invention, referring to shown in Fig. 5 a, distraction osteogenesis
Device also includes distance piece 8, and distance piece 8 is arranged in blind hole 7a, gos deep into blind hole 7a depth for adjusting leading portion 4b.
, can be by filling in the side of distance piece 8 in blind hole 7a when needing to change and adjusting the support length of anchorage bar 4
Formula adjusts the length of the leading portion 4b of anchorage bar 4 stretchings, therefore can reduce or eliminate the demand for changing anchorage bar 4, significantly drops
Low cost.
In the present embodiment, distance piece 8 can be the form of pad as shown in Figure 5 a.The material of distance piece 8 can be with
Determined according to being actually needed, especially can be quality of rubber materials, to be easier to be stuffed into blind hole 7a.
As the further improvement of present embodiment, distance piece 8 can also be the form of the spring as described in Fig. 5 b.When
When spacing body 8 is flexible, after the mission of distraction osteogenesis is completed, it can equally postpone dismantling distraction device.Now, exist
In the follow-up NITI Ω arch wire stage, distraction device, which can be used for promotion, is ground one's teeth in sleep and moves backward, and more Multiple level is provided for labial teeth area,
To improve and release crowded dentition.
It is obvious also possible to elastomeric pad is used to realize similar technique effect.
Embodiment four
The 4th embodiment of the present invention provides a kind of distraction device, and the 4th embodiment is real with first to the 3rd
It is different to apply mode, is in place of main difference, in first three embodiment of the present invention, the quantity of band 1 is extremely
It is few two；And in the 4th embodiment of the present invention, the quantity of band 1 is at least four.
Specifically, it is shown in Figure 6, have two bands 1 be socketed in respectively the left and right sides of patient first molar or
On second molar.
Because first molar and second molar anchorage are strong, relative difficult movement, using be socketed in first molar or second mill
Band 1 on tooth, can provide good support and auxiliary traction.
Another two band 1 is socketed on the premolar teeth or canine tooth of the left and right sides of patient respectively, the both ends difference of anchorage bar 4
Two connecting rods 6 of connection corresponding with the two bands 1 are connected.
Maintenance point can be increased using four bands 1 so that Distraction Apparatus is not susceptible to loosen or come off, and then causes the upper jaw
The pulling motion of bone 3 is more smooth.
It is noted that in the rear portion implant anchorage nail of maxilla 3, clinical manipulation difficulty is very big, and due to the upper jaw
Bone rear portion neural blood vessel enriches, and easily damages.And in the present embodiment, band 1 is socketed in the left and right two of patient respectively
On the first molar or second molar of side, and using the support at first molar and second molar offer upper jaw rear portion, greatly drop
Low clinical manipulation complexity, and the neural blood vessel for avoiding the rear portion of maxilla 3 enriches region, reduces clinical unexpected hair
It is raw.
Anchorage bar 4 is connected in connecting rod 6, tractive force is passed on by connecting rod 6, it is direct compared to by anchorage bar 4
For being connected on expansion bow device 5, reduce the occupancy for the output interface for expanding bow device 5, and can be according to connecting rod 6 and anchorage bar 4
Angle adjust the ratio of the size of the tractive force of tractive force and band 1 suffered by anchorage nail 2, it is very convenient.
Furthermore, it is understood that anchorage bar 4 is connected with the connecting rod 6 being connected on patient's premolar teeth or canine tooth, to
While giving the support of the stabilization of anchorage bar 4, premolar teeth or point can be also better protected from using the shape and intensity of anchorage bar 4
The displacement of tooth.
It is noted that in the present embodiment, shown in Figure 6, the both ends of anchorage bar 4 are respectively with being socketed in patient
The left and right sides premolar teeth or canine tooth on two connecting rods 6 of the corresponding connection of band 1 be connected.It is socketed in the left and right of patient
Rotary shaft and lock are also provided with band 1 on the premolar teeth or canine tooth of both sides so that band can open and close,
In order to the dismounting of band itself, and the related dismounting being engaged to anchorage bar 4 and connecting rod.
Embodiment five
The 5th embodiment of the present invention provides a kind of distraction device, and the 5th embodiment is the 4th embodiment
Further improvement, mainly the improvement is that, the present invention the 5th embodiment in, it is shown in Figure 7, anchorage bar 4 to
The direction for anchorage nail 2 convexes to form arc.
The anchorage bar 4 for forming arc possesses more preferable anti-pressure ability, can prevent it from shape occurs with the output of tractive force
Become, possess more preferable support strength on the premise of same thickness.
Embodiment six
The 6th embodiment of the present invention provides a kind of distraction device, and the 6th embodiment is the the 4th or the 5th real
The further improvement of mode is applied, is mainly theed improvement is that, in the 6th embodiment of the present invention, shown in Figure 8, anchorage
The recess that portion 4a is formed for anchorage bar 4 towards the direction depression away from anchorage nail 2, anchorage nail 2 are supported on recess；
Because over the course for the treatment of, different patients is likely to different disease progressions occur.Therefore may need interim
Pull down distraction device.When anchorage portion 4a is formed as into recess, branch need not be removed when pulling down the main body of distraction device
Anti- nail 2, the main body installation of distraction device can be gone back again at any time, it is very convenient.Therefore possesses the more preferable free degree
And flexibility ratio.
Embodiment seven
The 7th embodiment of the present invention provides a kind of distraction device, the 7th embodiment be the four, the 5th or
The further improvement of 6th embodiment, is mainly theed improvement is that, in the 7th embodiment of the present invention, referring to Fig. 9 institutes
Show, anchorage portion 4a at least two and the two anchorage portions 4a are respectively distributed to the both sides of the upper jaw of patient.
When only setting an anchorage portion 4a, it will usually which anchorage portion 4a is arranged on into the anterior midline position of maxilla 3.
Clinically, most of patient is generally overlapped with foramen incisivum positioned at the position of this position.Due to foramen incisivum include it is abundant
Nervus vasculairs, implantation anchorage can cause violent pain and bleeding after following closely 2.
Therefore, set two anchorage portion 4a not only to balance the tractive force of maxillar part, and the implantation of anchorage nail 2 can be avoided
Risk in foramen incisivum, so as to mitigate the pain of patient.
Embodiment eight
The 8th embodiment of the present invention provides a kind of distraction device, and the 8th embodiment is the the 4th to the 7th real
The further improvement of any one embodiment in mode is applied, is mainly theed improvement is that, in the 8th embodiment of the present invention,
Referring to shown in Figure 10 and Fig. 4, distraction device also includes the connector 7 being connected with expanding bow device 5, is provided with connector 7
Blind hole 7a with certain depth；
Connecting rod 6 inserts blind hole 7a, is connected with expanding bow device 5.
Because certain mechanics fatigue in itself be present in anchorage bar 4 and connecting rod 6.With the passage of the process for the treatment of, mechanics
Fatigue may aggravate so that trickle deformation occurs for anchorage bar 4 and connecting rod 6, and this deformation may also cause anchorage nail 2 with expanding
The distance for bending device 5 becomes big.
When the both ends of anchorage bar 4 are corresponding with the band 1 on the premolar teeth or canine tooth for the left and right sides for being socketed in patient respectively
, can be by changing connecting rod 6 and the anchorage bar 4 being attached thereto simultaneously, to adapt to this when two connecting rods 6 of connection are connected
The increase of one distance so that expanding bow device 5 can remain that maximum mechanics is exported and worked.
In summary, anchorage bar 4 and connecting rod 6 can be changed according to the process for the treatment of by set blind hole 7a, from
And more personalized customization treatment can be provided.The anchorage bar 4 and the material of connecting rod 6 that can also simultaneously reduce pair
It can require, reduce the material cost of distraction device.
Embodiment nine
The 9th embodiment of the present invention provides a kind of distraction device, and the 9th embodiment is the 8th embodiment
Further improvement, mainly the improvement is that, in the 9th embodiment of the present invention, referring to shown in Fig. 5 a, distraction osteogenesis
Device also includes distance piece 8, and distance piece 8 is arranged in blind hole 7a, gos deep into blind hole 7a depth for adjusting anchorage bar 4.Set
Distance piece 8 can adjust the length of the stretching of connecting rod 6, therefore can reduce or eliminate the need for changing anchorage bar 4 and connecting rod 6
Ask, cost is greatly reduced.
, can be by filling in the side of distance piece 8 in blind hole 7a when needing to change and adjusting the support length of anchorage bar 4
Formula adjusts the length of the leading portion 4b of anchorage bar 4 stretchings, therefore can reduce or eliminate the demand for changing anchorage bar 4, significantly drops
Low cost.
In the present embodiment, distance piece 8 can be the form of pad as shown in Figure 5 a.The material of distance piece 8 can be with
Determined according to being actually needed, especially can be quality of rubber materials, to be easier to be stuffed into blind hole 7a.
As the further improvement of present embodiment, distance piece 8 can also be the form of the spring as described in Fig. 5 b.When
When spacing body 8 is flexible, after the mission of distraction osteogenesis is completed, it can equally postpone dismantling distraction device.Follow-up
The NITI Ω arch wire stage, distraction device, which can be used for promotion, grinds one's teeth in sleep and moves backward, more Multiple level is provided for labial teeth area, to change
Kind and releasing crowded dentition.Certainly, can in order that obtain distraction osteogenesis does not influence labial teeth during motion backward is ground one's teeth in sleep in promotion
To be socketed in the band 1 on the premolar teeth of the left and right sides of patient or canine tooth.
It is obvious also possible to elastomeric pad is used to realize similar technique effect.
Embodiment ten
The tenth embodiment of the present invention provides a kind of distraction device, and the tenth embodiment is the the 4th to the 9th real
The further improvement of any one embodiment in mode is applied, is mainly theed improvement is that, in the tenth embodiment of the present invention,
It is shown in Figure 11, it is additionally provided with draw hook on two bands 1 being socketed on the premolar teeth or canine tooth of the left and right sides of patient
9, draw hook 9 is used to be connected with external traction mask.
It can coordinate dismountable external traction mask by draw hook 9, better control over the anterior traction side of maxilla 3
To.
External traction mask can install or remove as needed.Drawing mask outside personal air installing port can be real
Now to the adjustment of lead, and propulsive efficiency is improved, and external traction mask is removed before public arena is entered, can kept away
Exempt from the influence to patient's body and mind.
It will be understood by those skilled in the art that in above-mentioned each embodiment, in order that reader is more preferably geographical
Solve the application and propose many ins and outs.But even if without these ins and outs and based on the respective embodiments described above
Many variations and modification, each claim of the application technical scheme claimed can also be realized substantially.Therefore, in reality
In, can to above-mentioned embodiment, various changes can be made in the form and details, without departing from the present invention spirit and model
Enclose.
Claims (10)
1. a kind of distraction device, for being arranged on the upper jaw of patient, including：
At least two bands (1), the two bands (1) are socketed on the tooth at left and right sides of patient respectively；
At least one anchorage follows closely (2), is fixed on the maxilla (3) of patient；
With the anchorage bar (4) of the anchorage nail (2) corresponding setting, anchorage portion (4a) is provided with the anchorage bar (4), it is described
Anchorage portion (4a) is used to support follows closely (2) in the anchorage；
Expand bow device (5), for providing the tractive force of the distraction device；
Each band (1) is connected to the expansion by the connecting rod (6) to be connected one to one with the band (1), the connecting rod (6)
Bend on device (5)；
The bow device (5) that expands exerts a force to the band (1) and the anchorage bar (4), and forms traction to the jawbone of patient.
2. distraction device according to claim 1, it is characterised in that the anchorage portion (4a) is the anchorage bar
(4) supported towards the recess formed away from the direction of anchorage nail (2) depression, the anchorage nail (2) on the recess；
Or the anchorage portion (4a) is the ring washer being arranged on the anchorage bar (4), the anchorage nail (2) passes through institute
State the maxilla (3) that ring washer hammers into patient.
3. distraction device according to claim 1, it is characterised in that the anchorage bar (4) is followed closely towards the anchorage
(2) direction convexes to form arc.
4. distraction device according to claim 1, it is characterised in that the anchorage portion (4a) at least two and this
Two anchorage portions (4a) are respectively distributed to the both sides of the upper jaw of patient.
5. distraction device according to claim 1, it is characterised in that the both ends of the anchorage bar (4) are directly connected to
Expand described on bow device (5).
6. distraction device according to claim 5, it is characterised in that the anchorage bar (4) is divided into and the expansion
Bow device (5) back segment (4c) that is directly connected to and the leading portion (4b) for being provided with the anchorage portion (4a)；
The distraction device also includes the connector (7) being arranged on the back segment (4c), is set on the connector (7)
There is the blind hole (7a) with certain depth；
The blind hole (7a) is inserted at the both ends of the leading portion (4b), is fixed on the back segment (4c)；
The distraction device also includes distance piece (8), and the distance piece (8) is arranged in the blind hole (7a), for adjusting
The whole leading portion (4b) gos deep into the blind hole (7a) depth.
7. distraction device according to claim 1, it is characterised in that the band (1) is at least four,
On the first molar or second molar for having the left and right sides that two bands (1) are socketed in patient respectively；
Another two band (1) is socketed on the premolar teeth or canine tooth of the left and right sides of patient respectively, the both ends of the anchorage bar (4)
Two connecting rod (6) phases of connection corresponding with the band (1) on the premolar teeth or canine tooth for the left and right sides for being socketed in patient respectively
Connection.
8. distraction device according to claim 7, it is characterised in that the distraction device also include with it is described
Expand the connector (7) that bow device (5) is connected, the blind hole (7a) with certain depth is provided with the connector (7)；
The connecting rod (6) inserts the blind hole (7a), is connected with the bow device (5) that expands.
9. distraction device according to claim 8, it is characterised in that the distraction device also includes distance piece
(8), the distance piece (8) is arranged in the blind hole (7a), gos deep into the blind hole (7a) for adjusting the anchorage bar (4)
Depth.
10. distraction device according to claim 7, it is characterised in that in the left and right sides for being socketed in patient
Premolar teeth or canine tooth on two bands (1) on be additionally provided with draw hook (9), the draw hook (9) is used for and external traction face
Cover connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832779.7A CN107518954B (en) | 2017-09-15 | 2017-09-15 | Distraction osteogenesis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832779.7A CN107518954B (en) | 2017-09-15 | 2017-09-15 | Distraction osteogenesis device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107518954A true CN107518954A (en) | 2017-12-29 |
| CN107518954B CN107518954B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710832779.7A Active CN107518954B (en) | 2017-09-15 | 2017-09-15 | Distraction osteogenesis device |
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| Country | Link |
|---|---|
| CN (1) | CN107518954B (en) |
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| 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 |
| CN109044542A (en) * | 2018-08-06 | 2018-12-21 | 上海精功齿科技术有限公司 | One kind being used for the insufficient sagittal of maxillary development to expansion begg appliance device and manufacturing method |
| CN109199612A (en) * | 2018-09-29 | 2019-01-15 | 杭州西湖生物材料有限公司 | A kind of bone anchorage expands bow device and its application method |
| CN110151338A (en) * | 2019-04-26 | 2019-08-23 | 南京医科大学附属口腔医院 | Part Distraction Apparatus and its clinical application before a kind of adjustable maxilla in direction |
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| CN109199612A (en) * | 2018-09-29 | 2019-01-15 | 杭州西湖生物材料有限公司 | A kind of bone anchorage expands bow device and its application method |
| CN110151338A (en) * | 2019-04-26 | 2019-08-23 | 南京医科大学附属口腔医院 | Part Distraction Apparatus and its clinical application before a kind of adjustable maxilla in direction |
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