CN208942434U - A kind of correction external traction device - Google Patents
A kind of correction external traction device Download PDFInfo
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- CN208942434U CN208942434U CN201821264751.4U CN201821264751U CN208942434U CN 208942434 U CN208942434 U CN 208942434U CN 201821264751 U CN201821264751 U CN 201821264751U CN 208942434 U CN208942434 U CN 208942434U
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- traction
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- traction device
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- safety valve
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Abstract
The utility model provides a kind of correction external traction device, is formed by drawing prominent, draft arm, elastic component and head cap.It is described traction dash forward for the transparent integrally formed protrusion of appliance ontology, setting needs force application part on transparent appliance, what is be arranged on the other end and head cap there is certain tensile deformation ability elastic component to connect, the head cap is by enclosing the matched loop fabric band of size with the number of people and in decussation, both ends be separately fixed at two strip fabrics bands on round cloth band constitute (sagittal to, the coronal strap composition to horizontal direction three, head can be wrapped, stable support is provided), two webbings intersected are in the arch to match with number of people top radian, whole is in the hat shape that can wrap head.The device forces down movement using transparent appliance progress orthodontic process Tooth especially suitable for patient.
Description
Technical field
The utility model belongs to mouth cavity orthodontic instrument field, in particular to a kind of correction mouth that can be used for transparent appliance
External traction apparatus.
Background technique
Transparent appliance is the transparent resilient plastic removable orthodontic appliance device by computer-aided design and manufacture, it is by a system
The orthotic device of column reaches correction mistake by the moving teeth that constantly reduces the scopeThe purpose of deformity.Compared to traditional fixation
Appliance, transparent correction apparatus have the advantage that (1) beauty, and appliance is colourless transparent material, is particularly suitable for adult patients
With certain patients for having psychological burden and special occupation patient；(2) hygienic, patient can voluntarily replace appliance, and oral hygiene is easy
Cleaning；(3) comfortably, appliance is close to tooth and tooth is consistent form, does not stimulate oral cavity hard and soft tissue, and patient's mouthfeel is relaxed
Suitable, the operating time is short by (4) chair, further consultation interval time length etc..For certain correction cases, need to cooperate when using fixed appliance
External traction device is drawn to obtain optimum efficiency；However, not having still at present if this kind of patient selects transparent appliance
For the external traction device of transparent appliance, curative effect is affected.The mode that transparent appliance provides external anchorage at present only has
Mouth is implanted into anchorage nail, however anchorage nail implantation is invasive surgical, and price is relatively high, and not all patient can receive；
In addition, some patientss, especially teenager, because sclerotin is softer, anchorage nail is easy to loosen, and can not apply.It would therefore be highly desirable to develop one
Kind is used for the correction external traction device of transparent appliance.
Summary of the invention
The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of correction mouth for transparent appliance
External traction apparatus, the device force down shifting using transparent appliance progress orthodontic process Tooth especially suitable for patient
It is dynamic.
The utility model design: designing protrusion on transparent appliance and cooperates external traction device, is helped using mouth external force
It helps tooth mobile, is particularly suitable for helping tooth to force down movement when patient is rescued using transparent appliance.
Correction external traction device provided by the utility model is formed by drawing prominent, draft arm, elastic component and head cap.Institute
State traction dash forward for the transparent integrally formed protrusion of appliance ontology, setting force application part, the other end are needed on transparent appliance
With what is be arranged on head cap there is certain tensile deformation ability elastic component to connect, the head cap is by enclosing the matched round of size with the number of people
Webbing and in decussation, both ends be separately fixed at two strip fabrics bands on round cloth band constitute (sagittal to, it is coronal to
Strap with horizontal direction three forms, and can wrap head and provide stable support), two webbings of intersection are in and number of people top radian
The arch to match, it is whole in the hat shape that can wrap head.
Further, elastic component setting corresponds to above human ear on head cap, by spring, offers the safety of aperture
Valve and the hole bit slice composition for being provided with multiple through-holes being arranged in a linear.The safety valve is the circular cylindrical shell for offering aperture
Body, the spring one end are fixed on safety valve inner wall, preferably the corresponding bottom hole of aperture, the other end and the fixed company of hole bit slice
It connects, one end that junction hole bit slice is connect with spring is provided with the positive stop strip that width is greater than safety valve opening diameter, and hole bit slice is set
The one end and spring for setting positive stop strip are respectively positioned on safety valve enclosure interior, and it is long that hole bit slice stretches out safety valve difference under different pulling force
Degree, until positive stop strip is stuck in aperture, so that limited spring excessive tensile generates excessive and fails that (spring reaches maximum tension at this time
Length, such as maximum pull can will be allowed to be set as 300g as needed).The draw hook end is securable to different hole locations, from
And the different stretch degree of elastic component is utilized, different size of tractive force is applied by traction wall.
Further, the integrally formed traction protruding head portion opposing root of the transparent appliance expands (in drops), institute
It states draft arm and the prominent one end connected of traction is arranged to and draws the prominent matched annular shape of size, traction, which dashes forward to be inserted in annulus and realize, to be connected
It connects.Draft arm can be bent by the stainless steel wire of diameter 1.0mm or so, and end circular loop internal diameter is maximum slightly larger than traction protruding head portion
Outer diameter, draw hook are inserted in annulus realization and are detachably connected, facilitate patient voluntarily to pluck and wear.
Further, because tractive force direction is generally upward, Xiang Yuanzhong, therefore the draw hook generally answers downward, Xiang Jinzhong,
It prevents from slipping.Further, the traction is prominent can be set between maxillary central incisors and lateral incisor, each setting one of bilateral symmetry
It is a.
Further, the draft arm is arc-shaped at bicker, avoids bicker.
Further, the webbing is medical strap or medical nylon tape.
In above scheme, protruding head portion maximum diameter generally about 6mm, root narrow place diameter generally about 3-4mm are drawn, it is long
Spend general about 3-4mm.
The application method of correction external traction device provided by the utility model: when patient need by mouth external force receive,
When forcing down Upper Anterior Teeth, the traction device is used；Traction integrally formed to the position in requisition for force is prominent on transparent appliance, will
The traction of draft arm annulus end cap transparent appliance in mouth is prominent upper (such as Fig. 3), and the other end passes through head cap elastic component hole location on piece
Suitable through-hole is connect with head cap, carries out low force traction.Head is as the overall active force by opposite direction of anchorage.Positive stop strip
Spring maximum tension length is limited, to limit spring maximum pull, on the one hand protects tooth will not be by excessive forces
On the other hand the injury of amount also prevents the damage of transparent appliance.
Compared with prior art, the utility model has the following beneficial effects:
1, the traction device can for transparent appliance it is more flexible and convenient the tractive force in required direction is provided, be not required to invade
The operation of entering property, material cost is relatively low, and patient is acceptant, and the patient that cannot be in particular implanted into anchorage nail provides another kind
Solution.
2, different from conventional metals fixed appliance, transparent appliance is plastics, cannot bear excessive power；For this purpose, this
The specially designed positive stop strip of utility model limits spring maximum tension length, to limit spring maximum pull, it is therefore prevented that
Because of the transparent appliance of excessive damage or the injury human body of exerting a force.
3, traction device structure described in the utility model is simple, easy to use, and traction effect is good.
Detailed description of the invention
Fig. 1 is that traction projects the stereoscopic schematic diagram set on transparent appliance ontology.
Fig. 2 a is that traction projects the side view set on transparent appliance ontology, the constitutional diagram with draft arm.
Fig. 2 b is that draft arm covers the details enlarged drawing dashed forward when above exerting a force in traction.
Fig. 3 is schematic diagram after draft arm and the prominent connection of traction.
Fig. 4 is the usage state diagram of transparent appliance external traction device.
Fig. 5 is the amplification assumption diagram of elastic component (a is unstretched state, and b is tensional state, and c is maximum tension state).
Specific embodiment
Correction extraoral traction application described in the utility model is described further below by specific embodiment.
Embodiment
Correction external traction device is constituted by drawing prominent, draft arm, elastic component, head cap as Figure 1-Figure 5.It is described to lead
Draw dash forward for the integrally formed drops protrusion of transparent appliance (ontology) 3, setting force application part is needed on transparent appliance, such as
Close jaw side between maxillary central incisors lateral incisor, withPlane is in about 45° angle, Xiang Jinzhong and downward, each setting one of bilateral symmetry
It is a.Traction protruding head portion opposing root expands.It removably dashes forward and connects with traction in described draft arm one end.Draft arm and traction
One end of prominent connection is arranged to and draws the annular shape that prominent size matches, and traction is prominent to be inserted in realization connection in annulus.Draft arm
It is arc-shaped to avoid bicker at bicker.What is be arranged on the draft arm other end and head cap has certain tensile deformation ability elastic component
5 connections.The head cap by enclosing the matched round strap of size with the number of people and is separately fixed at round cloth in decussation, both ends
The two strip fabrics bands taken are constituted, and the medical strap of intersection is in the arch to match with number of people top radian, and whole is in that can wrap
The hat shape on head.The draft arm is arc-shaped at bicker.The elastic component setting corresponds to above human ear on head cap, by bullet
Spring 5-1, the cylindrical housings shape safety valve 5-2, the positive stop strip 5-3 that offer aperture and it is provided with multiple through-holes being arranged in a linear
Hole bit slice 5-4 composition, the spring one end is fixed on safety valve inner wall and the vertically opposite position of aperture, the other end and hole location
Piece is fixedly connected, and junction hole location piece end is provided with the positive stop strip 5-3 that width is greater than safety valve opening diameter, the setting of hole bit slice
One end of positive stop strip and spring are respectively positioned on safety valve enclosure interior, and bit slice extended safety valve difference under different pulling force in hole is long
Degree, until limit film is stuck in aperture.The draft arm end, which can be inserted into, to be fixed in different hole locations, to utilize the difference of spring
Level of stretch applies different size of tractive force.By the design of safety valve and positive stop strip, it is long to limit spring maximum tension
Degree, to limit its maximum pull, generally can be set as 300g or so for maximum pull.
Claims (5)
1. a kind of correction external traction device, it is characterised in that including drawing prominent (1), draft arm (2), head cap (6), the traction
Dash forward for the integrally formed protrusion of transparent appliance ontology (3), setting force application part, the other end and head are needed on transparent appliance
What is be arranged on cap has the connection of certain tensile deformation ability elastic component (5), and the head cap is by enclosing the matched round of size with the number of people
Webbing and in decussation, both ends be separately fixed at two strip fabrics bands on round cloth band constitute, two fabrics of intersection
Band is whole in the hat shape that can wrap head in the arch to match with number of people top radian.
2. correction external traction device according to claim 1, it is characterised in that the elastic component is arranged on head cap corresponding
At above human ear, by spring (5-1), offers the safety valve (5-2) of aperture, is provided with the hole of multiple through-holes being arranged in a linear
Bit slice (5-4) composition；The spring one end is fixed on safety valve inner wall, and the other end is fixedly connected with hole bit slice, junction hole
Bit slice end is provided with the positive stop strip (5-3) that width is greater than safety valve opening diameter, and one end and the bullet of positive stop strip is arranged in hole bit slice
Spring is respectively positioned on inside safety valve, and hole bit slice can stretch safety valve different length under different pulling force, until limit film is stuck in aperture.
3. correction external traction device according to claim 1 or claim 2, it is characterised in that traction protruding head portion opposing root is swollen
Greatly, one end of draft arm and the prominent connection of traction is arranged to the annular shape to match with the prominent size of traction, and traction is prominent to be inserted in annulus reality
Now connect.
4. correction external traction device according to claim 1 or claim 2, it is characterised in that the draft arm is in avoid at bicker
The arc of bicker.
5. correction external traction device according to claim 1 or claim 2, it is characterised in that the webbing is medical strap or doctor
Use nylon tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821264751.4U CN208942434U (en) | 2018-08-03 | 2018-08-03 | A kind of correction external traction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821264751.4U CN208942434U (en) | 2018-08-03 | 2018-08-03 | A kind of correction external traction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208942434U true CN208942434U (en) | 2019-06-07 |
Family
ID=66733245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821264751.4U Active CN208942434U (en) | 2018-08-03 | 2018-08-03 | A kind of correction external traction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208942434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969128A (en) * | 2018-08-03 | 2018-12-11 | 四川大学 | A kind of correction external traction device |
-
2018
- 2018-08-03 CN CN201821264751.4U patent/CN208942434U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969128A (en) * | 2018-08-03 | 2018-12-11 | 四川大学 | A kind of correction external traction device |
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