An arch expansion appliance

Abstract

The utility model belongs to the technical field of tooth correction, and provides an arch expansion appliance, including two groups of correction sleeves and an adjustment device, wherein the adjustment device includes a first adjustment component and a second adjustment component. By installing the two groups of correction sleeves on the teeth on both sides, and then rotating the adjustment member to rotate the threaded section to drive the correction sleeve to move, when the correction sleeve moves between the two groups of threaded sections, the elastic member provides an outward thrust to the correction sleeve, and the elastic member provides an outward thrust to the correction sleeve. When the device is taken off for a period of time and then worn again, an inward thrust can be applied to the correction sleeve to make the correction sleeve move to adapt to the retraction of the dental arch. At this time, the correction sleeve can be sleeved on the teeth again, and the length can be adjusted adaptively, which is convenient for wearing the device again after it is taken off, and the comfort of wearing the device is improved. At the same time, the size of the expansion arch can be deduced by observing the number of threaded sections that the correction sleeve is engaged with, and the size of the expansion arch is convenient to observe, which is convenient for subsequent doctor's review operation.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth correction, in particular to an arch expansion appliance. Background Art

[0002] Arch expansion therapy is a method of tooth correction that completes tooth correction by expanding the width and length of the dental arch so that each tooth can be moved to the correct position. It is mainly used to improve oral problems such as uneven tooth arrangement, crowding, protrusion or retraction.

[0003] Most of the arch expansion appliances in the prior art apply corrective force to the teeth by rotating the screw and engaging the threaded joint of the correction sleeve to drive the correction sleeve to move. The screw and the correction sleeve are mostly fully threaded. However, in actual use, since the arch expansion appliance will gradually transition from full-day wear to part-time wear, and the dental arch will usually retract to a certain extent when the arch expansion appliance is removed, when the wearer takes off the arch expansion appliance and wears it again after a period of time, the full-threaded joint of the screw and the correction sleeve cannot adaptively adjust the length, which makes it inconvenient to wear again and reduces the wearing comfort. At the same time, it is not convenient to observe the size of the expanded arch and is not convenient for subsequent doctor's review operations. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model proposes an arch expansion appliance that can adaptively adjust the length to facilitate the device to be worn again after being removed, thereby improving the wearing comfort of the device. At the same time, it is easy to observe the size of the expanded arch and facilitate subsequent doctor's review operations.

[0005] An arch expansion appliance comprises two sets of correction sleeves and an adjustment device, wherein the two sets of correction sleeves can be installed on teeth on both sides, and the adjustment device comprises:

[0006] A first adjustment assembly comprises an adjustment member, wherein at least one end of the adjustment member is provided with a plurality of groups of threaded segments at intervals along its axial direction, two groups of correction sleeves are mounted on both ends of the adjustment member, and at least one group of correction sleeves is threadedly connected to the threaded segments;

[0007] The second adjustment component comprises an elastic member, wherein the elastic member is located between the two groups of the correction sleeves and is used for providing an outward thrust when the correction sleeves are located between the two groups of the threaded segments.

[0008] The beneficial effects of the above-mentioned arch expansion appliance are:

[0009] By installing two sets of orthodontic sleeves on the teeth on both sides, and then rotating the adjusting piece to rotate the threaded section to cooperate with the sleeve thread to drive the orthodontic sleeve to move, when the orthodontic sleeve moves between the two sets of threaded sections, the elastic member provides an outward thrust to the orthodontic sleeve, thereby achieving the purpose of arch expansion correction. The elastic member provides an outward thrust to the orthodontic sleeve, and when the device is removed for a period of time and then worn again, an inward thrust can be applied to the orthodontic sleeve to move the orthodontic sleeve to adapt to the retraction of the dental arch. At this time, the orthodontic sleeve can be put on the teeth again, and it can adaptively adjust the length to facilitate the device to be worn again after being removed, thereby improving the wearing comfort of the device. At the same time, the size of the arch expansion can be deduced by observing the number of threaded sections that the orthodontic sleeve engages with. It is convenient to observe the size of the arch expansion, which is convenient for subsequent doctor's review operations.

[0010] In one embodiment, the correction sleeve includes an expansion frame, a labial bow and a base, the expansion frame is threadedly connected to the threaded section, the elastic member is located between two groups of the expansion frames, the base is connected to the expansion frame through the labial bow, and the base is used to be installed on the teeth.

[0011] In one embodiment, the expansion frame is provided with a mounting hole, in which a threaded sleeve is fixedly arranged, and the threaded sleeve can be threadedly connected with the threaded segment. The threaded sleeve can improve the strength of the threaded connection between the correction sleeve and the threaded segment, and drive the correction sleeve to move stably.

[0012] In one embodiment, the second adjustment component further includes a guide member, which is arranged in parallel with the adjustment member, and the guide member is slidably inserted into the two groups of the correction sleeves, and the elastic member is sleeved outside the guide member. The guide member can guide the correction sleeve and the elastic member, thereby improving the stability of the correction sleeve when moving and improving the stability of the elastic member when expanding and contracting.

[0013] In one embodiment, the second adjustment components are provided in two groups, and the two groups of the second adjustment components are symmetrically arranged about the adjustment member. The symmetrical arrangement of the two groups of the second adjustment components can improve the balance of the outward thrust provided to the correction sleeve.

[0014] In one embodiment, multiple groups of thread segments are arranged at intervals at both ends of the adjusting member, and the thread segments at both ends of the adjusting member have opposite rotation directions. The thread segments at both ends are rotated by rotating the adjusting member, and the rotation of the thread segments at both ends cooperates with the threads of the two groups of correction sleeves to drive the two groups of correction sleeves to move relatively away or closer, which can increase the adjustment range of the matching length of the two groups of correction sleeves, thereby increasing the adjustment range of the correction force of the device, and further improving the practicality of the device.

[0015] In one embodiment, the multiple groups of thread segments at the end of the adjusting member are evenly spaced, which facilitates the control of a single expansion length and improves the convenience of subsequent derivation of the expansion length.

[0016] In one embodiment, an adjusting portion is provided in the middle of the adjusting member, and the diameter of the adjusting portion is larger than the diameter of the adjusting member, so that the adjusting member can be driven to rotate by rotating the adjusting portion, and rotating the adjusting member is convenient and labor-saving.

[0017] In one embodiment, a plurality of groups of adjustment holes are evenly arranged on the adjustment part along the circumferential direction, so that an external adjustment tool can be inserted into the adjustment hole to drive the adjustment part to rotate, and the rotation of the adjustment part is convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an arch expansion appliance provided by an embodiment of the utility model;

[0020] Figure 2 for Figure 1 An exploded view of an arch expansion appliance is shown.

[0021] Reference numerals:

[0022] 10. Correction sleeve; 101. Arch expansion frame; 1011. Mounting hole; 102. Labial arch; 103. Base; 104. Threaded sleeve;

[0023] 20, adjusting member; 201, threaded section; 202, adjusting portion; 2021, adjusting hole;

[0024] 30. Elastic parts;

[0025] 40. Guide member. DETAILED DESCRIPTION

[0026] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0027] See also Figure 1 and Figure 2 In one embodiment, an arch expansion appliance includes two sets of correction sleeves 10 and an adjustment device. The two sets of correction sleeves 10 can be installed on the teeth on both sides. The adjustment device includes a first adjustment component and a second adjustment component.

[0028] The first adjustment component includes an adjustment member 20, at least one end of which is provided with a plurality of thread segments 201 at intervals along its axial direction, two groups of correction sleeves 10 are installed at both ends of the adjustment member 20, and at least one group of correction sleeves 10 is threadedly connected with the thread segments 201. The second adjustment component includes an elastic member 30, which is located between the two groups of correction sleeves 10 and is used to provide an outward thrust when the correction sleeve 10 is located between the two groups of thread segments 201. Specifically in this embodiment, the elastic member 30 is a spring.

[0029] By installing two groups of corrective sleeves 10 on the teeth on both sides, and then rotating the adjusting member 20 to rotate the threaded segment 201 to cooperate with the thread of the corrective sleeve 10 to drive the corrective sleeve 10 to move, when the corrective sleeve 10 moves between the two groups of threaded segments 201, the elastic member 30 provides an outward thrust to the corrective sleeve 10, thereby achieving the purpose of arch expansion correction. The elastic member 30 provides an outward thrust to the corrective sleeve 10. When the device is removed for a period of time and then worn again, an inward thrust can be applied to the corrective sleeve 10 to move the corrective sleeve 10 to adapt to the retraction of the dental arch. At this time, the corrective sleeve 10 can be put on the teeth again. It can adaptively adjust the length to facilitate the device to be worn again after being removed, thereby improving the wearing comfort of the device. At the same time, the size of the arch expansion can be deduced by observing the number of threaded segments 201 that the corrective sleeve 10 engages with. It is convenient to observe the size of the arch expansion, which is convenient for subsequent doctor's review operations.

[0030] See also Figure 1 and Figure 2 In one embodiment, the correction sleeve 10 includes an expansion frame 101, a labial bow 102 and a base 103. The expansion frame 101 is threadedly connected to the threaded segment 201. The elastic member 30 is located between the two sets of expansion frames 101. The base 103 is connected to the expansion frame 101 through the labial bow 102. The base 103 is used to be installed on the teeth. The expansion frame 101 is provided with a mounting hole 1011. A threaded sleeve 104 is fixedly provided in the mounting hole 1011. The threaded sleeve 104 can be threadedly connected to the threaded segment 201. By setting the threaded sleeve 104 to be threadedly connected to the threaded segment 201, the strength of the threaded connection between the correction sleeve 10 and the threaded segment 201 can be improved, and the correction sleeve 10 can be driven to move stably.

[0031] See also Figure 1 and Figure 2 In one embodiment, the second adjustment component further includes a guide member 40, which is arranged in parallel with the adjustment member 20. The guide member 40 is slidably inserted into the two groups of correction sleeves 10, and the elastic member 30 is sleeved outside the guide member 40. The guide member 40 can guide the correction sleeve 10 and the elastic member 30, thereby improving the stability of the correction sleeve 10 when moving and improving the stability of the elastic member 30 when expanding and contracting.

[0032] See also Figure 1 and Figure 2In one embodiment, two groups of second adjustment components are provided, and the two groups of second adjustment components are symmetrically arranged about the adjustment member 20. By symmetrically arranging the two groups of second adjustment components, the balance of the outward thrust provided to the correction sleeve 10 can be improved.

[0033] See also Figure 1 and Figure 2 In one embodiment, multiple groups of thread segments 201 are arranged at intervals at both ends of the adjusting member 20, and the thread segments 201 at both ends of the adjusting member 20 rotate in opposite directions. By rotating the adjusting member 20 to rotate the thread segments 201 at both ends, the thread segments 201 at both ends rotate and cooperate with the threads of the two groups of correction sleeves 10 to drive the two groups of correction sleeves 10 to move relatively away or closer, which can increase the adjustment range of the matching length of the two groups of correction sleeves 10, thereby increasing the adjustment range of the correction force of the device, and further improving the practicality of the device.

[0034] See also Figure 1 and Figure 2 In one embodiment, the multiple groups of thread segments 201 at the end of the adjusting member 20 are evenly spaced. The multiple groups of thread segments 201 are evenly spaced to facilitate the control of the length of a single expansion, while improving the convenience of subsequent derivation of the expansion length.

[0035] See also Figure 1 and Figure 2 In one embodiment, an adjusting portion 202 is provided in the middle of the adjusting member 20, and the diameter of the adjusting portion 202 is larger than the diameter of the adjusting member 20. Furthermore, a plurality of adjusting holes 2021 are evenly provided on the adjusting portion 202 along the circumferential direction. By inserting an external adjusting tool (not shown) into the adjusting hole 2021, the adjusting portion 202 can be driven to rotate by rotating the external adjusting tool, and the adjusting portion 202 can drive the adjusting member 20 to rotate by rotating, which is convenient and labor-saving to drive the adjusting member 20 to rotate. After the adjustment is completed, the adjusting tool can be taken out.

[0036] The specific implementation of the above-mentioned arch expansion appliance is as follows:

[0037] By installing the two sets of bases 103 on the teeth on both sides, and then inserting the external adjustment tool into the adjustment hole 2021, the external adjustment tool is rotated to drive the adjustment part 202 to rotate, and the adjustment part 202 can drive the adjustment member 20 to rotate. Driving the adjustment member 20 to rotate is convenient and labor-saving. The adjustment member 20 rotates to rotate the threaded segments 201 at both ends. The threaded segments 201 at both ends rotate and cooperate with the threaded sleeves 104 to drive the two sets of threaded sleeves 104 to move relatively away from each other, so that the two sets of expansion frames 101 drive the two sets of bases 103 to move relatively away from each other through the labial arch 102. When the two sets of threaded sleeves 104 move between the two sets of threaded segments 201, the elastic member 30 expands The arch frame 101 provides an outward thrust, thereby providing an outward thrust to the base 103, thereby achieving the purpose of arch expansion correction. The elastic member 30 provides an outward thrust to the base 103. When the device is worn again after being removed for a period of time, an inward thrust can be applied to the base 103 to move the base 103 to adapt to the retraction of the dental arch. At this time, the base 103 can be put on the teeth again. It can adaptively adjust the length to facilitate the device to be worn again after being removed, thereby improving the wearing comfort of the device. At the same time, the size of the arch expansion can be deduced by observing the number of threaded segments 201 that the threaded sleeve 104 engages with. It is convenient to observe the size of the arch expansion, which is convenient for subsequent doctor's review operations.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An arch expansion appliance, characterized in that: The invention comprises two groups of correction sleeves (10) and an adjusting device, wherein the two groups of correction sleeves (10) can be installed on teeth on both sides, and the adjusting device comprises: A first adjustment component, comprising an adjustment member (20), wherein at least one end of the adjustment member (20) is provided with a plurality of groups of threaded sections (201) spaced apart along its axial direction, two groups of correction sleeves (10) are mounted on both ends of the adjustment member (20), and at least one group of correction sleeves (10) is threadedly connected to the threaded sections (201); The second adjustment component comprises an elastic member (30), wherein the elastic member (30) is located between the two groups of the correction sleeves (10) and is used for providing an outward thrust when the correction sleeve (10) is located between the two groups of the threaded segments (201).

2. The arch expansion appliance according to claim 1, characterized in that: The correction sleeve (10) comprises an expansion frame (101), a labial bow (102) and a base (103); the expansion frame (101) is threadedly connected to the threaded section (201); the elastic member (30) is located between two groups of the expansion frames (101); the base (103) is connected to the expansion frame (101) through the labial bow (102); and the base (103) is used to be installed on the teeth.

3. The arch expansion appliance according to claim 2, characterized in that: The expansion frame (101) is provided with a mounting hole (1011), a threaded sleeve (104) is fixedly arranged in the mounting hole (1011), and the threaded sleeve (104) can be threadedly connected to the threaded section (201).

4. The arch expansion appliance according to claim 1, characterized in that: The second adjustment component also includes a guide member (40), the guide member (40) is arranged in parallel with the adjustment member (20), the guide member (40) is slidably inserted into the two groups of correction sleeves (10), and the elastic member (30) is sleeved outside the guide member (40).

5. The arch expansion appliance according to claim 1, characterized in that: The second adjustment components are provided in two groups, and the two groups of the second adjustment components are symmetrically arranged with respect to the adjustment member (20).

6. The arch expansion appliance according to claim 1, characterized in that: A plurality of groups of thread segments (201) are arranged at intervals at both ends of the adjusting member (20), and the thread segments (201) at the two ends of the adjusting member (20) have opposite rotation directions.

7. The arch expansion appliance according to claim 1, characterized in that: The multiple groups of thread segments (201) at the end of the adjusting member (20) are evenly spaced.

8. The arch expansion appliance according to claim 1, characterized in that: An adjusting portion (202) is provided in the middle of the adjusting member (20), and the diameter of the adjusting portion (202) is greater than the diameter of the adjusting member (20).

9. The arch expansion appliance according to claim 8, characterized in that: The adjustment portion (202) is evenly provided with a plurality of groups of adjustment holes (2021) along a circumferential direction.

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