CN219048896U - Spiral expander for orthodontic treatment - Google Patents

Abstract

The application relates to the technical field of tooth orthodontics, and provides a spiral expander for orthodontic, and the spiral expander comprises: a fixed base for fixing to the first tooth; the first screw-connection piece is fixedly connected with the fixed base; the adjusting base is used for being fixed on the second teeth and is arranged at intervals with the fixed base; the second screw-connection piece is fixedly connected with the adjusting base; the two ends of the adjusting piece are respectively connected with the first screw-connection piece and the second screw-connection piece in a threaded manner, and the first screw-connection piece and the second screw-connection piece are made to be close to or far away from each other through rotation. The problem of the spring in prior art force application is comparatively fixed in the adjustment process, can't adjust the effort between the teeth, and the spring force application can't accurately control the amount of movement of correction tooth moreover, uses inconvenient in the correction process is solved.

Description

Spiral expander for orthodontic treatment

Technical Field

The application relates to the technical field of tooth orthodontics, in particular to a spiral expander for orthodontics.

Background

Screw expander (also known as expansion screw, screw expander, expansion screw, etc.), is a common appliance component in orthodontic treatment. As shown in fig. 4, a common structure of the screw expander includes: an archwire 700, a staple 600, a fixed base 100, an adjustable base 300, and a spring 710. The arch wire 700 is fixed in the oral cavity by the fixing nails 600, the adjusting base 300 can be fixed to one tooth by the connecting steel wires 310, the fixing base 100 can be adhered to or fixed to the other tooth by the connecting steel wires, the spring 710 is sleeved on the arch wire, the fixing base and the adjusting base are respectively connected to the two ends of the spring 710, and the adjusting base applies force to the connected tooth by the elastic force (tensile force or pushing force) of the spring, so that the effect of adjusting the tooth is achieved.

The existing spiral expander is applied to the mobile treatment of individual teeth, and force adjustment is carried out only by a spring. The spring is relatively fixed in the adjustment process, the acting force between teeth cannot be adjusted, the spring force cannot accurately control the movement amount of the corrected teeth, and the spring is inconvenient to use in the correction process.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

The utility model provides an aim at provides a spiral expander for orthodontic solves the spring among the prior art and forces the comparison fixedly at the adjustment in-process, can't adjust the effort between the teeth, and the spring application force can't accurately control the amount of movement of correction tooth moreover, uses inconvenient problem in the correction process.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

the application provides a spiral expander for orthodontic, including: a fixed base for fixing to the first tooth;

the first screw-connection piece is fixedly connected with the fixed base;

the adjusting base is used for being fixed on the second teeth and is arranged at intervals with the fixed base;

the second screw-connection piece is fixedly connected with the adjusting base;

the two ends of the adjusting piece are respectively connected with the first screw-connection piece and the second screw-connection piece in a threaded manner, and the first screw-connection piece and the second screw-connection piece are made to be close to or far away from each other through rotation.

Optionally, the first screw comprises: the first sleeve rod is provided with a first internal thread at one end;

the second screw includes: the second sleeve rod is provided with a second internal thread at one end;

the regulating member includes: the connecting part, and the first stud and the second stud respectively positioned at two ends of the connecting part, wherein the threads of the first stud and the second stud are opposite in rotation direction;

the first stud is connected with the first internal thread in a matched mode, and the second stud is connected with the second internal thread in a matched mode.

Optionally, the connecting portion includes: the first stud and the second stud are respectively positioned at two ends of the connecting column;

the plug hole is formed in the outer wall of the connecting column.

Optionally, the plug holes are four, and the four plug holes are uniformly distributed around the outer wall of the connecting column.

Optionally, the pitch of the threads on the first stud and the threads on the second stud are each 0.4mm.

Optionally, the first stud and the second stud are each 2mm in diameter.

Optionally, the outer diameter of the first loop bar and the outer diameter of the second loop bar are equal to the outer diameter of the connecting column.

Optionally, the first screw further comprises: the first arch wire is connected to one end of the first loop bar, which is far away from the first internal thread, and the fixed base is fixedly arranged on the first arch wire;

the second screw further includes: the second arch wire is connected to one end of the second loop bar, which is far away from the second internal thread, and the adjusting base is fixedly arranged on the second arch wire.

Optionally, the first archwire and the second archwire are connected through the first loop bar, the second loop bar and the connecting part to form an arch structure;

the first arch wire or the second arch wire is connected with a fixing nail.

The application provides a beneficial effect of orthodontic spiral expander lies in at least: the first screw-connection piece and the second screw-connection piece are mutually close to or far away from each other under the action of threaded connection by rotating the adjusting piece. Thereby drive fixed base and adjustment base be close to each other or keep away from to realized exerting the effort to two teeth, not only realized the adjustable process of effort in the orthodontic process, but also through twisting the moving amount that moves the adjusting part number of turns and can more meticulously control orthodontic tooth, more be applicable to the whole accurate removal of tooth, made things convenient for the orthodontic process of tooth greatly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a spiral expander for orthodontic treatment according to an embodiment of the present application;

fig. 2 is a schematic structural view of a part of a structure of a spiral expander for orthodontic treatment according to an embodiment of the present application;

fig. 3 is a sectional view of an orthodontic screw expander according to an embodiment of the present application, with a main portion thereof detached;

fig. 4 is a schematic diagram of a prior art structure.

Wherein, each reference sign in the figure:

100. a fixed base; 200. a first screw; 210. a first archwire; 220. a first loop bar; 221. a first internal thread; 300. adjusting the base; 310. connecting steel wires; 400. a second screw; 410. a second archwire; 420. a second loop bar; 421. a second internal thread; 500. an adjusting member; 510. a connection part; 511. a connecting column; 512. a plug hole; 520. a first stud; 530. a second stud; 600. fixing nails; 700. an archwire; 710. and (3) a spring.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

As shown in fig. 1, the present embodiment provides a spiral expander for orthodontic treatment, which is used for correcting teeth, and for convenience of structural description, the direction of tooth arrangement is taken as a first direction. For example, a first tooth and a second tooth are disposed adjacent to each other in a first direction, and a distance between the second tooth and the first tooth needs to be adjusted by the present screw expander. The spiral expander for orthodontic treatment mainly comprises: the fixing base 100, the first screw 200, the adjusting base 300, the second screw 400, and the adjusting member 500. The fixed base 100 may be adhesively secured to the first tooth such that the fixed base 100 is immobilized with the first tooth. The first screw member 200 is fixedly connected to the fixed base 100, so that the first screw member 200 is fixed to the fixed base 100. The adjusting base 300 may be fixed to the second tooth by a connection wire 310 and a connection sleeve, the adjusting base 300 is fixed to the second tooth, and the second screw 400 is fixedly connected to the adjusting base 300. So that the adjustment base 300 is spaced apart from the fixed base 100 in the first direction. The adjusting member 500 is disposed between the first and second screw members 200 and 400, and both ends of the adjusting member 500 are respectively screw-coupled to the first and second screw members 200 and 400, and the first and second screw members 200 and 400 are moved toward or away from each other in the first direction by rotating the adjusting member 500. For example, when the first tooth and the second tooth are to be moved away from each other in the first direction, the adjusting member 500, the first screw member 200, and the second screw member 400 apply a force to move away from each other to the first tooth and the second tooth, respectively, and the second tooth is moved away from the first tooth gradually during the growth process due to the long-term effect of the force, thereby achieving the purpose of orthodontic treatment.

In the scheme of this application, through fixing fixed base 100 on first tooth, and with adjustment base 300 and fixed base 100 interval setting and adjustment base 300 are fixed to the second tooth, first spiro union piece 200 is fixed at fixed base 100, and second spiro union piece 400 is fixed at adjustment base 300, and first spiro union piece 200 and second spiro union piece 400 are connected at the both ends of adjusting piece 500, through rotating adjusting piece 500, make first spiro union piece 200 and second spiro union piece 400 be close to each other or keep away from under threaded connection's effect. Thereby driving the fixed base 100 and the adjusting base 300 to approach or separate from each other, and realizing the application of force to the two teeth through the adjustment of the distance between the fixed base 100 and the adjusting base 300. The scheme replaces the scheme that the spring is adopted to apply acting force to the teeth in the prior art, not only realizes the adjustable process of the acting force in the orthodontic process, but also can finely control the movement amount of the orthodontic teeth by twisting 500 turns of the adjusting piece, is more suitable for the integral accurate movement of the teeth, and greatly facilitates the orthodontic process of the teeth.

As shown in fig. 1, 2 and 3, the first screw member 200 in this embodiment specifically includes: the first archwire 210 and the first loop bar 220, the first loop bar 220 is cylindrical, the axial direction of the first loop bar extends along the first direction, one end of the first loop bar 220 is provided with a first internal thread 221, and the other end is connected with the first archwire 210. The second screw 400 specifically includes: a second archwire 410 and a second loop bar 420, one end of the second loop bar 420 is provided with a second internal thread 421, and the other end is connected with the second archwire 410. The first and second internal threads 221, 421 are located in opposite directions of the first and second stems 220, 420, respectively, and the first and second archwires 210, 410 are located in opposite directions of the first and second stems 220, 420, respectively. The adjusting member 500 in this embodiment specifically includes: the connecting part 510, and a first stud 520 and a second stud 530 which are respectively positioned at two ends of the connecting part 510, wherein the threads of the first stud 520 and the second stud 530 are opposite in rotation direction; the first stud 520 is coupled to the first internal thread 221 and the second stud 530 is coupled to the second internal thread 421. Because the screw threads on both sides of the connection portion 510 have opposite rotation directions, after the connection portion 510 is rotated, the first stud 520 and the second stud 530 are respectively connected with the first internal thread 221 and the second internal thread 421, so that the first loop bar 220 and the second loop bar 420 can be synchronously driven to move in opposite directions or move in opposite directions. The first tooth and the second tooth are applied with opposite pulling force or opposite pushing force.

It is easy to think that, besides the above-mentioned threaded connection form, the first threaded connection piece can also adopt an external thread form, the second threaded connection piece also adopts an external thread form, and both ends of the corresponding adjusting piece are respectively provided with an internal thread and respectively match with the external threads on the first threaded connection piece and the external threads on the second threaded connection piece. The first screw-connection piece and the second screw-connection piece are exerted with pulling force or pushing force under the action of the threaded connection by the rotary adjusting piece, so that the effect of exerting opposite pulling force or opposite pushing force on the first teeth and the second teeth is achieved.

As shown in fig. 2 and 3, the connection portion 510 in the present embodiment specifically includes a connection post 511 and a plug hole 512, the axial direction of the connection post 511 extends along a first direction by a preset distance, and the first stud 520 and the second stud 530 are respectively located at two ends of the connection post 511 in the first direction; the plugging hole 512 is formed on the outer wall of the connecting column 511. The insertion hole 512 may be opened perpendicular to the axial direction of the connection post 511, and an external rotation key may be connected through the insertion hole 512. When the connection column 511 needs to be rotated, an external rotation key is inserted into the insertion hole 512, and the rotation key is broken off to drive the connection column 511 to rotate around the first direction, so that pulling force or pushing force is applied to the first screw connector 200 and the second screw connector 400. For example, a pushing force is applied around a forward rotation, and a pulling force is applied around a reverse rotation.

It is easy to think that the connecting part can be set to other forms, for example set up different planes on the spliced pole to make the outer wall surface of spliced pole form the joint face, set up the outside rotatory key into the form of joint mouth, can form the butt joint after inserting the joint face through the joint mouth, and then drive the spliced pole through the rotation of rotatory key and rotate, this mode also can realize rotating the spliced pole, thereby realizes exerting effort to first tooth and second tooth.

As shown in fig. 2 and 3, the four plugging holes 512 in the present embodiment are provided, and the four plugging holes 512 are uniformly distributed around the outer wall of the connecting column 511. Through setting up four spliced eyes 512, can make things convenient for rotatory afterburning, when the rotation range is bigger, can insert in proper order in the corresponding spliced eye 512 and carry out the rotation of little range, and the rotation of little range only needs very little rotation space at every turn, makes outside rotatory key rotate in limited rotation space a plurality of times to realize the great supplementary rotation of spliced pole 511.

The pitch of the threads on the first stud 520 and the threads on the second stud 530 in this embodiment are both 0.4mm. By adopting the screw pitch, the displacement of the adjusting part in one rotation is controlled to be 0.4mm, so that the movement amount of the orthodontic teeth is accurately controlled to achieve the effect of accurate treatment.

The diameters of the first stud 520 and the second stud 530 in this embodiment are each 2mm. And the corresponding connection post 511 may be provided to be 3mm. This results in a smaller overall regulator 500 size, and a corresponding overall screw expander that is small in size and smooth in surface, facilitating oral hygiene maintenance and patient comfort during treatment.

The outer diameter of the first loop bar 220 and the outer diameter of the second loop bar 420 in this embodiment are equal to the outer diameter of the connecting post 511. The overall appearance can be kept consistent, the sizes of the first loop bar 220 and the second loop bar 420 are matched with the outer diameter of the connecting column 511, and the small-volume adjusting piece 500 is adopted, so that the volumes of the first loop bar 220 and the second loop bar 420 are correspondingly reduced, and the use in the treatment process is convenient. The surface of the first sleeve 220 and/or the surface of the second sleeve 420 of this embodiment is marked with a laser marking direction that is used to indicate the direction of opening of the rotary key for processing and clinical use.

As shown in fig. 1, 2 and 3, the first archwire 210 on the first screw member 200 in this embodiment is integrally connected to one end of the first loop bar 220, the fixing base 100 is disc-shaped, and the fixing base 100 can be integrally formed with the first archwire 210. The second archwire 410 and the second loop bar 420 of the second screw 400 are integrally formed, the adjustment base 300 is disc-shaped, and the adjustment base 300 can be integrally formed and fixed on the second archwire 410. In this way, the archwire can be more stable in connection with the bases.

In this embodiment, the first archwire 210 and the second archwire 410 are connected by the first loop bar 220, the second loop bar 420 and the connecting portion 510 to form an arch structure, and the fixing nail 600 is connected to the first archwire 210 or the second archwire 410. For example, in this embodiment, the fixing pin 600 is connected to the first archwire 210, the arch structure is formed to match the outline of the teeth of the patient, and the spiral expander of the arch structure can be fixed in the oral cavity through the fixing pin 600, so that the support of the archwire is realized, and the force applied by the archwire to the teeth is facilitated.

To sum up, according to the screw expander for orthodontic treatment provided by the present application, through the cooperation between the adjusting member 500 and the first screw member 200 and the second screw member 400, the first screw member 200 and the second screw member 400 are made to approach or separate from each other, so as to drive the fixing base 100 and the adjusting base 300 to approach or separate from each other, and apply the acting force to two teeth. Instead of the prior art scheme of applying force to teeth with springs; the correction process of tooth has been made things convenient for greatly, when fixed base 100 and adjustment base 300 keep away from each other (keep away from slightly), receive the thrust that keeps away from each other between making two teeth, this effort adjusts the size of thrust according to the pivoted number of turns of regulating part 500, not only realized the adjustable process of effort in the correction process of tooth, but also through twisting the amount of moving of adjusting part 500 number of turns and can finer control correction tooth, the whole accurate removal of more being applicable to the correction process of tooth has made things convenient for the correction process of tooth greatly.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (9)

1. A spiral expander for orthodontic treatment, comprising: a fixed base for securing to a first tooth;

the first screw-connection piece is fixedly connected with the fixed base;

the adjusting base is used for being fixed on the second tooth and is arranged at intervals with the fixed base;

the second screw-connection piece is fixedly connected with the adjusting base;

the two ends of the adjusting piece are respectively connected with the first threaded piece and the second threaded piece in a threaded mode, and the first threaded piece and the second threaded piece are made to be close to or far away from each other through rotation.

2. The orthodontic screw expander of claim 1 wherein the first screw member comprises: the first sleeve rod is provided with a first internal thread at one end;

the second screw includes: the second sleeve rod is provided with a second internal thread at one end;

the adjusting member includes: the connecting part, and a first stud and a second stud which are respectively positioned at two ends of the connecting part, wherein the threads of the first stud and the second stud are opposite in screwing direction;

the first stud is connected with the first internal thread in a matched mode, and the second stud is connected with the second internal thread in a matched mode.

3. The orthodontic spiral expander of claim 2, wherein the connecting portion comprises: the first stud and the second stud are respectively positioned at two ends of the connecting column;

and the plug-in holes are plugged in the outer wall of the connecting column Kong Kaishe.

4. The orthodontic spiral expander of claim 3 wherein four of said attachment holes are evenly distributed around the circumference of the outer wall of said post.

5. The orthodontic screw expander of claim 3 wherein the thread pitch of the threads on the first stud and the threads on the second stud are each 0.4mm.

6. The orthodontic spiral expander of claim 3 wherein the first stud and the second stud are each 2mm in diameter.

7. The orthodontic screw expander of claim 3 wherein the outer diameter of the first loop bar and the outer diameter of the second loop bar are both equal to the outer diameter of the connecting post.

8. The orthodontic screw expander of claim 2 wherein the first screw further comprises: the first arch wire is connected to one end, away from the first internal thread, of the first loop bar, and the fixed base is fixedly arranged on the first arch wire;

the second screw further includes: the second arch wire is connected to one end, deviating from the second internal thread, of the second loop bar, and the adjusting base is fixedly arranged on the second arch wire.

9. The orthodontic spiral expander of claim 8 wherein the first and second archwires are connected by the first and second loop bars and the connection portion to form an arch;

the first arch wire or the second arch wire is connected with a fixing nail.

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