DE202010008972U1 - Clamping element for a brace - Google Patents

Abstract

Clamping device (11) for a brace (6) for transmitting pretensionable spring forces to at least one tooth (2; 3) to be adjusted in position in the lower or upper jaw (1), which has at least one connecting element (18) for this purpose in that the tensioning device (11) has a tensioning element (15; 24; 26) which can be plugged or hooked on the tooth side into the connection element (18) and is designed to be displaceable on the brace (6) on the brace.

Description

Technical area

The invention relates to a clamping device for a brace for the transmission of prestressable spring forces on at least one in the lower or upper jaw in its position to be regulated tooth, which has at least one connection element for this purpose.

State of the art

Such tensioning devices are used inter alia to correct the position of one or more teeth, for example to make room for an orderly alignment of the other teeth. In this context is from the WO 2009/071492 A2 an anchoring device for a tooth and / or jaw regulation is known, which is shown in its application with two braces, one of which is arranged in the palate area and the other around the outer periphery of the teeth of an upper jaw. Both braces have a seen in plan view horseshoe-shaped basic body in the form of tension wires, which is adapted to the individual jaw shape.

The basic body of the one brace located in the palate area is fastened centrally to the anchoring device in the form of a bone screw on the upper jaw, whereas the two end sections of this brace are each fixedly connected to a connecting element which is provided on a round brace pushed over a molar tooth. The outer braces in turn is also in each case fixed with its end portions to the said round brackets of the molars via a connection element, however, sliding, and thus the braces on both sides in each case via a provided thereon tensioning device for transmitting prestressable spring forces according to the arrows indicated there on which can act on the teeth to be moved.

Since braces are mainly used in young patients and in turn are still growing, the braces of the braces - which usually have to be worn over a long period of time - often (or every 4 to 6 weeks) readjusted or even be replaced. These measures can be very time consuming due to the fixed installation of the braces on the respective teeth to be regulated, especially since the braces in the oral or oral cavity area are not easily accessible, moreover, a treatment with permanently installed braces is already relatively expensive anyway.

Object of the invention

This is where the invention, which is based on the object to provide for a jig of a brace a clamping element with which it is possible that these quickly and easily attached to the patient itself, that is fixed and can be preloaded or re-tensioned.

Solution of the task

This object is achieved according to the invention in an advantageous manner that the clamping device has a clamping element which is the tooth side plug-in or hooked into the connection element and tooth brace side on the braces slidably formed.

Advantages of the invention

As a result, it is advantageously possible with the tensioning element to pull it out, for example, from the connection element or to unhook it, in order to make the brace with the tensioning device more accessible in this area and thus easier to readjust it. Then it can then be easily attached to the respective connection element again. It is not necessary to unhook the tensioning element.

Thus, the essential advantage of the invention is that the entire system (clamping device with braces and clamping elements) can be preassembled and adapted to a gypsum or plastic model created by the patient, so that this in a further step without further corrections and processing of the entire system in the Jaw of the patient can be used.

Another significant advantage of the invention is that the attending physician, for example, the orthodontist can apply the entire system only by plugging and screwing. There is no need for a laboratory in which the items must be made. The present kit provides an easy to use system.

The overall system also has the advantage of causing the tooth to be positioned to be pushed or pulled in the correct direction both by a tensile or compressive arrangement (the direction in which the clamping element presses or pulls).

According to the present invention, it is expedient if the clamping elements on the Side of the connecting elements each have a tongue-like portion and on the side of the brace have a sliding bush and the connecting elements to form a plug connection with the respective clamping element have a pocket-like projection for receiving its tongue-like portion. As a result, each connector can be made advantageous by a linear telescoping of the tongue-like portion in the pocket-like projection, which is very accommodating the space in the oral cavity area, especially since each clamping element is formed on the braces linearly displaceable on the braces by means of its sliding bushing.

Furthermore, it may be expedient if the clamping element on the side of the tongue-like portion corresponding to a mirror-inverted arranged sieves, the transverse leg is the tongue-like portion is formed.

The clamping element can be made simultaneously on the side of the tongue-like portion as a whole as a flat portion, similar to a small plate, which takes up little space but is still stable in its longitudinal and transverse directions.

The tongue-like portion opposite end portion can be fixedly connected to the sliding bush, in such a way that this end portion extends coaxially with the sliding bush, wherein the end portion in this case expediently has a length corresponding to the length of the sliding bushing.

For attachment of possible further dental devices such as binding wires, it may be advantageous if the end portion of the flat portion of the clamping element is formed on the side of the tongue-like portion at a right angle or has an additional hook member, which is then substantially smaller than the entire flat portion is the clamping element, wherein the tongue-like portion with a corresponding transverse web mirrored to this may be formed.

As a further attachment possibility for said aids can also be provided that the end portion of the flat portion of the clamping element in the axial direction relative to the additional hook member has a bore. Finally, it is advantageous if the tongue-like portion of the clamping element and the crosspiece of the additional hook member are rounded at the ends, so that hereby a possible risk of injury is reduced and at the same time the tongue-like portion can be easily inserted into the pocket-like projection on the connection element.

The sliding bush of the clamping element is an integral part. This sliding bush is either soldered or welded to the section. It can also be a one-piece component.

Further details and advantages of the present invention are described below with reference to three exemplary embodiments and explained.

drawings

Show it:

1 1 is a schematic representation of a perspective view of a jaw part with an inner brace, which shows a tensioning device with a clamping element according to the invention as a first exemplary embodiment, especially on the right-hand side;

2 a side view of a second embodiment of a clamping element according to 1 .

3 a perspective view of the clamping element according to 2 .

4 a side view of a third embodiment of a clamping element according to 1 and

5 a side view from the left on the clamping element according 4 ,

Description of the embodiments

This in 1 spatially represented jaw part (for example, a lower jaw) - referred to with 1 - has a number of teeth, of which the two molars 2 and 3 in relation to their position on the white teeth 3 and 4 to be moved, including a brace 6 is provided in a U-shaped bent shape. Furthermore, it should be effected that the jaw is stretched accordingly, so that the individual teeth get the necessary space.

Braces 6 consists of a tension wire and is centered on a hanger 7 with two fixing screws 8th attached to the jawbone and has free thighs 9 and 10 , on each of which a clamping device 11 is deferred, which is a locking member 12 with a set screw 13 , a compression spring 14 and as a first embodiment of an inventive clamping element 15 includes.

The tensioning element 15 as on the right side of the jaw part 1 is shown by a releasable plug connection with the molar tooth 2 connected, and this is on the one hand on this a ring clamp 16 with connection elements 17 and 18 pushed and on the other hand has the clamping element 15 for this purpose a tongue-like section 19 , which is then in the connection element 18 , which is pocket-shaped, is inserted.

The tongue-like section 19 belongs to a flat section 20 , which is designed according to about a mirrored arranged sieves. This one has the tongue-like section 19 opposite end portion 21 with a copybook 22 coaxially extends and is attached to this, wherein the end portion 21 has a length equal to the length of the sliding bushing 22 equivalent. Furthermore, the end section has 21 on the side of the tongue-like section 19 a directed to this finger-like hook member 23 ,

In the 2 - 5 are shown as the second and third embodiments, two alternative clamping elements, which with the clamping element 15 in 1 matching parts have the same reference numerals.

In 2 and 3 is a tensioning element 24 with a flat section 25 shown, the end portion 21 without an additional hook member 23 expires. Against in the 4 and 5 a tensioning element 26 is shown, which is a flat section 27 has, at its end portion 21 on the side of the tongue-like section 19 an additional hook member 28 is provided.

This hook member 28 is opposite the flat section 27 of the clamping element 26 much smaller and opposite the tongue-like section 19 with a crossbar 29 mirrored trained to this.

Furthermore, the flat section has 27 of the clamping element 26 one more hole 30 in this opposite the additional hook member 28 transverse to the axial direction of the sliding bushing 22 is arranged.

Finally, the tongue-like sections 19 the clamping elements 15 and 26 and the crossbar 29 of the additional hook member 28 rounded at the end.

Industrial Applicability

At the in 1 shown jaw part 1 becomes the regulation of, for example, the molars 2 and 3 first the braces 6 in its U-shaped form the course of the teeth of the jaw 1 adjusted and then with two fixing screws 8th passing through the hanger 7 be stuck, centered on the jawbone as a kind of geometric resistance point secured against rotation. The fixing screws 8th engage with previously implanted bone screws and interact with them. Then the ring clamp 16 about the molars to be regulated 2 and 3 stuck, which also before the insertion of the braces 6 can happen.

On the free thighs 9 and 10 the braces 6 Then, in each case a clamping device 11 quasi threaded, which in turn also before the attachment of the braces 6 can be done. Like the example of the right side of the jaw part 1 can be seen (but in an already biased state), was the tension element 15 with its tongue-like section 19 in the pocket-shaped connection element 18 stuck and then the locking member 12 against the restoring force of the compression spring 14 pushed, so that their individual turns lie on each other.

In this condition, then the set screw was tightened, so that the clamping device 11 remains biased, that is on the molar 2 permanently exerts a lateral thrust force, so that in the medium term its position in relation to the white tooth 4 changed. The force thus acts in the direction of the white tooth 4 , But it is also possible with the same as in 1 arrangement shown to form a tensile force in the direction of the incisors, in which the spring in a connecting element 15 or in a hole 30 ( 4 ) is hooked and the locking member 12 is guided in the direction of the incisors.

The further connection element 17 serves to insert further rubbers or springs. However, it is not necessary for the present application and could not be present.

On the left side of the jaw part 1 is an example of the tensioning device 11 shown in a state before the compression spring 14 has been biased.

Overall, by the connector between the clamping and connecting element 15 . 18 a simplified attachment of the braces 6 on the teeth to be regulated 2 . 3 become possible, which then by the respectively interposed compression spring 14 experience a permanent thrust, so this due to the bushings 22 a pushing movement parallel to the thighs 9 . 10 the braces 6 can execute. As soon as then. This thrust in, for example, 4 to 6 weeks wears off, can easily the jig 11 to be harnessed again. At the same time, those on the clamping elements 15 . 26 alternatively provided additional hook members 23 . 28 as well as the bore 30 other aids such as wires are attached.

LIST OF REFERENCE NUMBERS

1

Kiefer part

2

molar tooth

3

molar tooth

4

White wisdom tooth

5

White wisdom tooth

6

braces

7

hanger

8th

fixing screws

9

Thigh right

10

Thighs left

11

jig

12

Fixing member

13

screw

14

compression spring

15

clamping element

16

ring clamp

17

connecting element

18

connecting element

19

plier-like section

20

flat section

21

end

22

bush

23

hook member

24

clamping element

25

flat section

26

clamping element

27

flat section

28

hook member

29

crosspiece

30

drilling

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2009/071492 A2 [0002]

Claims (10)

Clamping device ( 11 ) for a brace ( 6 ) for the transmission of prestressable spring forces to at least one in the lower or upper jaw ( 1 ) in its position to be regulated tooth ( 2 ; 3 ), for which at least one connection element ( 18 ), characterized in that the tensioning device ( 11 ) a tensioning element ( 15 ; 24 ; 26 ), the tooth side in the connecting element ( 18 ) can be plugged or hooked in and braces on the braces ( 6 ) is designed to be displaceable. Clamping device according to claim 1, characterized in that the clamping element ( 15 ; 24 ; 26 ) on the side of the connecting element ( 18 ) a tongue-like section ( 19 ) and on the side of the braces ( 6 ) a sliding bush ( 22 ) owns. Clamping device according to claim 2, characterized in that the connecting element ( 18 ) for receiving the tongue-like portion ( 19 ) and forming a plug connection with the clamping element ( 15 ; 24 ; 26 ) is formed pocket-like. Clamping device according to at least one of claims 1 to 3, characterized in that the clamping element ( 15 ; 24 ; 26 ) on the side of the tongue-like portion ( 19 ) corresponding to a mirror-inverted arranged sieves, the transverse leg of the tongue-like portion ( 19 ) is formed. Clamping device according to claim 4, characterized in that the clamping element ( 15 ; 24 ; 26 ) on the side of the tongue-like portion ( 19 ) as a flat section ( 20 ; 25 ; 27 ), of which the tongue-like portion ( 19 ) opposite end portion ( 21 ) with the slide book ( 22 ) is coaxially aligned and attached to this. Clamping device according to claim 5, characterized in that the end portion ( 21 ) of the flat section ( 20 ; 25 ; 27 ) of the clamping element ( 15 ; 24 ; 26 ) has a length which corresponds to the length of the sliding bush ( 22 ) corresponds. Clamping device according to claim 6, characterized in that the end section ( 21 ) of the flat section ( 20 ; 27 ) of the clamping element ( 15 ; 26 ) on the side of the tongue-like portion ( 19 ) an additional hook member ( 23 ; 28 ) having. Clamping device according to claim 7, characterized in that the additional hook member ( 28 ) opposite the flat section ( 27 ) of the clamping element ( 26 ) substantially smaller and opposite the tongue-like portion ( 19 ) with a corresponding crosspiece ( 29 ) is designed mirror-inverted to this. Clamping device according to claim 6, characterized in that the end section ( 21 ) of the flat section ( 27 ) of the clamping element ( 26 ) in the axial direction relative to the hook member ( 28 ) an additional hole ( 30 ) having. Clamping device according to at least one of the preceding claims, characterized in that the tongue-like portion ( 19 ) of the clamping element ( 15 ; 26 ) and / or the crosspiece ( 29 ) of the additional hook member ( 28 ) are rounded at their free ends.

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