CN217611486U - Orthodontic appliance - Google Patents

Abstract

The utility model discloses an orthodontic appliance, which comprises a main body part, a traction part and an occupying part, wherein the traction part and the occupying part are mutually independent; the traction part is detachably connected with the containing cavity and/or the occupying part; the occupying part is movably connected with the containing cavity, and is provided with a transmission matching bit which is used for matching and connecting a screwing tool or a traction part; driven by a screwing tool or a traction part, at least part of the occupying part enters or exits the groove or moves in the groove along the groove width direction so as to change the effective space of the groove. The utility model discloses to draw the function and to the occupy-place function split of slot, each other does not influence, freely implements separately, also can implement simultaneously or do not implement simultaneously. When the occupying function is independently implemented, the traction part can be in a non-working state, and then the traction part cannot protrude outwards to generate the problems of uncomfortable feeling, uncleanness, insanitation and the like.

Description

Orthodontic appliance

Technical Field

The utility model relates to an just abnormal technical field, concretely relates to just abnormal utensil.

Background

The orthodontic appliance includes orthodontic bracket and buccal tube, and is one important part for fixing and correcting teeth, and is one orthodontic appliance for correcting teeth array deformity and fixed directly onto the surface of dental crown.

The applicant filed an invention application on 29.1.2015, named as a traction bracket and orthodontic system and an orthodontic method, with the patent number of 201510046931.x.

The patent discloses a traction element, which comprises a locking bolt and a traction bolt, wherein the locking bolt is different from the traction bolt in that the tail end of the locking bolt protrudes, when the locking bolt is embedded in a locking traction hole of a main body part, the tail end of the locking bolt can enter a main groove to lock an arch wire, and when the traction bolt is embedded in a locking traction hole of the main body part, the tail end of the traction bolt does not enter the main groove, does not generate locking effect on the arch wire and is only used for traction.

This bracket can realize drawing locking system: the bracket with the locking bolt is an active bracket, and the bracket with the traction bolt is a passive bracket. The two ends of the rubber ring are respectively hung on the locking bolt and the traction bolt, and the elastic force of the rubber ring is contracted to act on the locking bolt and the traction bolt. Because the friction force between the stop lock bolt and the arch wire is large, the passive bracket is pulled by the active bracket, and the bracket with the traction bolt drives the tooth to be close to the tooth where the bracket with the stop lock bolt is positioned, so that the staged correction of the malposition tooth is realized.

In order to realize the random switching of the active bracket and the passive bracket, the locking bolt needs to have a traction function. However, this traction lock-out system does not address the situation where only lock-out is required and no traction is required. When only locking is needed, the bolt head of the locking bolt still protrudes outwards, which brings obvious discomfort to patients. And a series of oral health problems caused by the traction suppository are generated, such as hanging food residues to breed germs, and abrading oral mucosa to induce ulcer and the like.

SUMMERY OF THE UTILITY MODEL

To solve the above technical problems, the present invention provides an orthodontic appliance.

The utility model provides a technical scheme that this technical problem adopted is:

an orthodontic appliance comprises a main body part, a traction part and an occupying part which are mutually independent, wherein the main body part is provided with a groove and an open cavity communicated with the groove; the traction component is detachably connected with the containing cavity and/or the occupying component; the occupying part is movably connected with the containing cavity, and is provided with a transmission matching bit which is used for matching and connecting a screwing tool or the traction part; driven by a screwing tool or a traction part, at least part of the occupying part enters or exits the groove or moves in the groove along the groove width direction so as to change the effective space of the groove.

In one embodiment, the accommodating cavity is a through hole vertically penetrating through the surface of the main body part and the groove, and the through hole is movably connected with the occupying part through threads.

In one embodiment, the traction component is provided with an access end, the access end is clamped, screwed or interference fit with the cavity, and/or the access end is clamped, screwed or interference fit with the occupying component.

In one embodiment, the traction member is provided with an access end which is detachably connected with the transmission adaptation bit.

In one embodiment, the drive fitting is a non-circular hole or protrusion.

In one embodiment, the transmission fitting positions are inner n-angle hole angle protrusions, elliptical holes, elliptical protrusions, petal-shaped protrusions or petal-shaped holes, wherein n is a natural number and is larger than or equal to 1 and smaller than or equal to n.

In one embodiment, the transmission fitting position is an elastic buckle, a clamping protrusion or a buckling position.

In one embodiment, the portable electronic device further comprises a bottom plate, and the main body part is arranged on the bottom surface.

In one embodiment, the cover further comprises a cover portion connected to the main body portion for covering or uncovering the slot.

Compared with the prior art, the method has the following positive effects:

1. the utility model discloses to pull the function and to the occupy-place function split of slot, each other does not influence, freely implements separately, also can implement simultaneously or do not implement simultaneously. The utility model discloses can reappear the locking system that pulls of prior patent, also can implement the occupy-place function alone. When the occupying function is independently implemented, the traction part can be in a non-working state, and then the traction part cannot protrude outwards to generate the problems of uncomfortable feeling, uncleanness, insanitation and the like.

2. The utility model discloses redefine the lock-up function. The purpose of the lock bolt entering the groove in the prior art is to tightly support the arch wire and make static friction with the arch wire. The space occupying part of the utility model has more possibilities. The locking function can be realized not only to the part that occupies place, can also adjust the part that occupies place in the deep degree of arch wire, promptly, only occupies in the groove, reserves the activity space for the arch wire in the groove, controls the torque of arch wire, effectively reduces the change number of times of arch wire, can also relatively run through ground, softly and accurately express the torque, realizes showing the effect of correcting, reduces doctor's operating time, improves work efficiency, reduces patient's spirit burden and economic burden.

The present invention will be further explained with reference to the drawings and examples.

Drawings

FIG. 1 is a schematic structural view showing a bracket of example 1 in a first state;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a cross-sectional view of FIG. 1;

FIG. 5 is another cross-sectional view of FIG. 1;

FIG. 6 is a structural view showing the bracket of embodiment 1 in a second state;

FIG. 7 is another cross-sectional view of FIG. 6;

FIG. 8 is a schematic view of the turning tool being engaged on the basis of FIG. 3;

FIG. 9 is a schematic view of the turning tool of FIG. 8 driving a placeholder member adjacent to the second working wing for placeholder function;

FIG. 10 is a sectional view of the bracket of example 1 in a third state;

FIG. 11 is another cross-sectional view of FIG. 10;

FIG. 12 is a sectional view of the bracket of example 1 in a fourth state;

FIG. 13 is another cross-sectional view of FIG. 12;

FIG. 14 is a schematic view of the structure of the traction means, the placeholder means and the screwing tool in example 1;

FIG. 15 is a cross-sectional view of the bracket of embodiment 2 in a first state;

FIG. 16 is another cross-sectional view of FIG. 15;

FIG. 17 is a sectional view of the bracket of embodiment 2 in a second state;

FIG. 18 is another cross-sectional view of FIG. 17;

FIG. 19 is a sectional view of the bracket of embodiment 2 in a third state;

FIG. 20 is another cross-sectional view of FIG. 19;

FIG. 21 is a sectional view of the bracket of embodiment 2 in a fourth state;

FIG. 22 is another cross-sectional view of FIG. 21;

fig. 23 is a schematic structural view of the traction member, the placeholder member and the screwing tool in example 2;

FIG. 24 is a sectional view of a bracket in example 4.

In the figure, the position of the upper end of the main shaft,

101. supporting a groove; 110. a main body part; 120. a lid portion; 130. a base plate; 140. a trench; 111. a first working wing; 112. a second working wing; 150. a placeholder component; 160. a traction member; 113. a housing chamber; 114. A card slot; 151. a transmission adaptation bit; 161. clamping convex; 10. screwing tools; 11. an inner hexagonal hole;

102. supporting a groove; 220. a lid portion; 230. a base plate; 240. a groove; 211. a first working wing; 212. a second working wing; 250. a placeholder component; 260. a traction member; 213. a cavity; 214. a card slot; 251. a transmission adaptation bit; 261. clamping and protruding; 20. screwing tools; 21. a square bulge;

103. a bracket; 360. a traction member; 350. a placeholder component; 361. an access end; 351. and (5) driving the fitting bit.

Detailed Description

It should be noted that the orthodontic appliances referred to in the present invention refer to orthodontic brackets or buccal tubes, or other appliances having similar functions and similar structures.

Unless otherwise indicated, in the following structural description, it is necessary to use a reference frame to the maxillary teeth to describe embodiments of the invention, and thus, as used herein, terms such as labial, lingual, mesial, distal, occlusal, gingival used to describe orthodontic appliances are relative to the reference frame selected. However, embodiments of the present invention are not limited to the chosen frame of reference and the described terminology, as orthodontic appliances may be used with other teeth and other orientations within the oral cavity.

For example, brackets or buccal tubes may also be coupled to the lingual surfaces of the teeth and fall within the scope of the invention. Those skilled in the art will appreciate that when there are variations in the reference frame, the descriptive terms used herein may not be directly applicable. However, embodiments of the invention are intended to be independent of position and orientation within the oral cavity and the relative terms used to describe the embodiments are merely intended to provide an unambiguous explanation of the embodiments in the drawings. Likewise, the relative terms labial, lingual, mesial, distal, occlusal and gingival are in no way intended to limit the present invention to a particular position or orientation.

The relative terms labial, lingual, mesial, distal, occlusal and gingival are the industry terms for orthodontic treatment. Taking a certain tooth of the upper jaw as an example, the surface of the tooth can be roughly divided into six surfaces. The surface of the tooth that is occlusal to the mandibular tooth is the occlusal surface; the surface of the tooth that is in contact with the gingival tissue to which it is attached is the gingival surface; the occlusal surface is opposite to the gingival surface, and the direction in which the occlusal surface and the gingival surface are formed is also called the gingival-jaw direction. The face of the tooth facing the lip is the labial face, the face of the tooth facing the tongue is the lingual face, the labial face and the lingual face are opposed to each other, and the direction formed by the labial face and the lingual face is also referred to as the labial-lingual direction. The two surfaces of the tooth that contact the adjacent teeth are the mesial and distal surfaces, respectively, and the difference is the distance from the middle, and the direction formed by the two is also called the mesial-distal direction, or the mesial-distal direction.

And in the description of directions, such as the labial and lingual directions, it is commonly referred to as bi-directional. However, the distinction is made that the term "lip-tongue direction" refers to a single direction, i.e., a direction from the labial side to the lingual side.

Example 1

Referring to fig. 1 to 14, the bracket 101 of the embodiment 1 includes a main body 110, a cover 120 and a bottom plate 130. The main body 110 is provided with a groove 140 penetrating both sides of the main body 110 in the proximal and distal direction, and the groove 140 divides the main body 110 into two parts including a first operating wing 111 and a second operating wing 112. The slot 140 is for receiving an archwire, and the slot 140 has two opposing side walls and a bottom wall, open at the top.

The base plate 130 is attached to the bottom surface of the body 110, and the base plate 130 is used to bond the bracket 101 to the tooth surface.

The cover portion 120 is connected to a surface of the main body portion 110 for opening or closing the slot 140. In this embodiment, the cover portion 120 is preferably slidably connected to the labial side of the second operating wing 112.

The base plate 130 and the cover 120 are not essential components for the present invention. As a preferred embodiment, the two parts are provided.

The cradle 101 further includes a placeholder 150 and a traction member 160, and the placeholder 150 and the traction member 160 are independent components and are non-fixedly connected to each other. The main body portion 110 is provided with an open cavity 113 communicated with the groove 140, the cavity 113 is used for accommodating the occupying part 150, and the traction part 160 is detachably connected with the cavity 113.

Specifically, the cavity 113 is disposed on the first operating wing 111 of the main body 110, and in this embodiment, it is preferable that the cavity 113 is a through hole vertically penetrating through the surface of the main body 110 and the groove 140, and the opening is disposed on the gingival surface of the main body 110. The through-hole is threadedly movably connected to the placeholder member 150. Specifically, the inner wall of the cavity 113 is provided with an internal thread, and the inner wall of the cavity 113 between the internal thread and the opening is provided with a clamping groove 114. In this embodiment, the cross section of the non-internal thread section of the cavity 113 is a non-perfect circle, and the shape thereof matches the outer contour of the maximum cross section of the traction member 160, so as to receive the traction member 160 and clamp the traction member 160 to the clamping groove 114.

Referring to fig. 14, placeholder 150 is a threaded rod provided with an external thread. A placeholder member 150 is at least partially arranged within said cavity 113, the placeholder member 150 being in threaded mating abutment with the cavity 113. One end of the placeholder 150 is open towards the cavity 113, and the end face thereof is provided with a transmission adaptation bit 151 for transmission connection; the other end of the placeholder member 150 faces the slot 140, the end face of which is a functional face of the placeholder member 150. The driving fitting bit 151 of the present embodiment is a hexagonal protrusion, and correspondingly, the receiving end of the screwing tool 10 is a hexagonal socket 11.

Referring to fig. 14, the pulling member 160 is a bolt body, one end of which radially protrudes to form a bolt head, which is a pulling end; the other end of the pulling member 160 is an access end, two opposite clamping protrusions 161 protrude radially, the two opposite clamping protrusions 161 are detachably plugged in the cavity 113, and the clamping protrusions 161 are clamped with the clamping grooves 114. Further, the access end of the traction component 160 is recessed into a sleeve shape for avoiding the occupying component 150.

Working principle of example 1:

referring to fig. 1-5, in a first state, the placeholder 150 is completely within the cavity 113, and the available space of the slot 140 is maximized. The traction member 160 is removed from the body portion 110. The bracket 101 in the first state has neither the traction nor the occupancy function applied.

Referring to fig. 6 and 7, the second state is the state in which the traction unit 160 is engaged based on the first state. Specifically, the access end of the traction member 160 is abutted to the opening of the cavity 113, and the access end of the traction member 160 rotates less than 180 degrees after entering the cavity 113, that is, the clamping protrusion 161 is clamped with the clamping groove 114, so that the traction member 160 is detachably connected with the cavity 113, and the traction end of the traction member 160 is located above the main body 110, so that the traction function can be implemented.

Referring to fig. 8 and 11, in a third state, the space of the slot 140 is adjusted based on the first state to implement the space occupying function. Specifically, the access end of the screwing tool 10 abuts against the transmission fitting bit 151 of the occupying member 150, and the occupying member 150 is driven by forward or reverse rotation, and the external thread of the occupying member 150 is meshed with the internal thread of the accommodating cavity 113 to change, that is, the occupying member 150 enters and exits the slot 140 or moves in the slot 140 along the slot width direction. Such as: the forward rotation screwing tool 10 drives the occupying part 150 to be close to the second working wing 112, the effective space of the slot 140 becomes smaller, and the reverse rotation screwing tool 10 drives the occupying part 150 to be far away from the second working wing 112, and the effective space of the slot 140 becomes larger. When the driver tool 10 is withdrawn, the available space for the slot 140 is again determined.

Referring to fig. 12 and 13, in the fourth state, the traction member 160 is connected based on the third state. Specifically, the access end of the traction member 160 is abutted to the opening of the cavity 113, the rotation of the access end of the traction member 160 is less than 180 degrees after entering the cavity 113, that is, the clamping protrusion 161 is clamped with the clamping groove 114, so that the traction member 160 is detachably connected with the cavity 113, and the traction end of the traction member 160 pulls the main body portion 110 of the traction member 160 above the main body portion 110, so that the traction function can be implemented.

The first state, the second state, the third state and the fourth state can be freely switched, and the four states do not have strict conversion sequence.

It should be noted that the groove 140 has two sidewalls, and a total accommodating space of the groove 140 is between the two sidewalls. The present invention provides placeholders 150 in the slots 140 to subdivide the space within the slots 140. In some cases, as the placeholder member 150 moves in the slot 140, the overall accommodation space of the slot 140 is unchanged, and the placeholder member 150 only divides the slot 140 axially into two spaces, but typically only one of the spaces can be used for storing an archwire. The space defined by the functional surface of the placeholder member 150 and the side walls of the slot 140, which can be used for storing archwires, is then the available space of the slot 140 as defined by the present invention. Therefore, as the position or shape of the placeholder 150 in the slot 140 changes, the total accommodation space of the slot 140 may not change, but the effective space of the slot 140 should change. The real-time size of the effective space is based on the radial dimension of the space which can store the largest arch wire at present. Other embodiments of the present invention are the same with respect to the understanding of the available space for the slot 140, and are not described further herein.

Example 2

Referring to fig. 15 to 23, the bracket 102 of the embodiment 2 includes a main body portion, a cover body portion 220 and a bottom plate 230. The main body portion is provided with a groove 240 penetrating both sides of the main body portion in the mesial-distal direction, and the groove 240 divides the main body portion into two parts including a first operating wing 211 and a second operating wing 212. The slot 240 is used for accommodating the arch wire, and the slot 240 has two opposite side walls and a bottom wall and is opened at the upper part.

A base plate 230 is attached to the bottom surface of the body portion, the base plate 230 being used to bond the bracket 102 to the tooth surface.

The cap portion 220 is connected to a surface of the main body portion for opening or closing the slot 240. In this embodiment, the cover portion 220 is preferably slidably connected to the labial side of the second operating wing 212.

The bottom plate 230 and the cover 220 are not essential components for the present invention. As a preferred embodiment, the two parts are provided.

The body portion comprises a placeholder 250 and a traction member 260, wherein the placeholder 250 and the traction member 260 are independent parts and are in non-fixed connection with each other. The main body portion is provided with an open type containing cavity 213 communicated with the groove 240, the containing cavity 213 contains a occupying part 250, and the traction part 260 is detachably connected with the containing cavity 213.

Specifically, the cavity 213 is disposed on the first operating wing 211 of the main body, and in this embodiment, the cavity 213 is preferably a through hole vertically penetrating through the surface of the main body and the groove 240, and the opening is disposed on the gingival surface of the main body. The through hole is threadedly articulated to the placeholder member 250. Specifically, the inner wall of the cavity 213 is provided with an internal thread, and the inner wall of the cavity 213 between the internal thread and the opening is provided with a clamping groove 214. In this embodiment, the cross section of the non-internal thread section of the cavity 213 is a non-perfect circle, and the shape thereof matches the outer contour of the maximum cross section of the connected pulling member 260, so as to allow the pulling member 260 to be connected, and to clamp the pulling member 260 to the clamping groove 214.

The placeholder 250 is a threaded sleeve provided with an external thread. A placeholder 250 is at least partially arranged within the cavity 213, the placeholder 250 threadedly mating interfacing with the cavity 213. The threaded sleeve may be a through hollow tube or a sleeve with one end closed and the other end open, and in this embodiment, the occupying part 250 is preferably a sleeve-shaped threaded sleeve. The open end of the placeholder 250 is open towards the housing 213 and is provided with a drive fitting 251 for a drive connection, the closed end of the placeholder 250 is facing the slot 240, and its end face is a functional face of the placeholder 250. The driving fitting bit 251 of the present embodiment is a square blind hole formed at the opening end of the threaded bushing, and correspondingly, the receiving end of the screwing tool 20 is a square protrusion 21.

The traction component 260 is a bolt body, one end of which radially protrudes to form a bolt head, which is a traction end; the other end of the drawing part 260 is an access end, two opposite clamping protrusions 261 protrude radially, the clamping protrusions are detachably plugged into the accommodating cavity 213, and the clamping protrusions 261 are clamped with the clamping grooves 214.

Working principle of example 2:

referring to fig. 15 and 16, in a first state, the placeholder 250 is completely within the cavity 213 and the available space in the slot 240 is at a maximum. The traction member 260 is removed from the body portion. The bracket 102 in the first state has neither the traction nor the occupancy functions applied.

Referring to fig. 17 and 18, in the second state, the traction unit 260 is engaged based on the first state. Specifically, the access end of the pulling member 260 is abutted to the opening of the cavity 213, and the rotation of the access end of the pulling member 260 after entering the cavity 213 is less than 180 degrees, that is, the clamping protrusion 261 is clamped with the clamping groove 214, so that the pulling member 260 is detachably connected with the cavity 213, and the pulling end of the pulling member 260 is arranged above the main body part, so that the pulling function can be implemented.

Referring to fig. 19 and 20, in the third state, the space available in the slot 240 is adjusted based on the first state to perform the space occupying function. Specifically, the access end of the screwing tool 20 abuts against the transmission fitting bit 251 of the occupying member 250, and the occupying member 250 is driven by forward or reverse rotation, so that the external thread of the occupying member 250 is meshed with the internal thread of the accommodating cavity 213 to change, that is, the occupying member 250 enters or exits the slot 240 or moves in the slot 240 along the slot width direction. Such as: the screwing tool 20 is rotated forward to drive the occupying part 250 to be close to the second working wing 212, the effective space of the slot 240 becomes small, the screwing tool 20 is rotated backward to drive the occupying part 250 to be far away from the second working wing 212, and the effective space of the slot 240 becomes large. When the turning tool 20 is pulled out, the available space for the slot 240 is again determined.

Referring to fig. 21 and 22, in the fourth state, the traction unit 260 is connected based on the third state. Specifically, the access end of the pulling member 260 is abutted to the opening of the cavity 213, and the rotation of the access end of the pulling member 260 after entering the cavity 213 is less than 180 degrees, that is, the clamping protrusion 261 is clamped with the clamping groove 214, so that the pulling member 260 is detachably connected with the cavity 213, and the pulling end of the pulling member 260 is arranged above the main body part, so that the pulling function can be implemented.

The first state, the second state, the third state and the fourth state can be freely switched, and the four states do not have strict conversion sequence.

Compared with the prior art, embodiment 1 and 2's technical scheme, the utility model discloses to draw the function and to the space-occupying function split of slot 240, each other does not influence, freely implements separately, also can implement simultaneously or do not implement simultaneously. The utility model discloses can reappear the locking system that pulls of prior patent, also can implement the occupy-place function alone. When the occupying function is implemented independently, the traction part 260 can be in a non-working state, and then the traction part 260 cannot protrude outwards to cause the problems of uncomfortable feeling, uncleanness, insanitation and the like.

Example 3

The bracket of this embodiment 3 includes a main body portion, a lid portion, and a bottom plate. The main part is equipped with the slot that runs through both sides on the nearly distal direction of main part, and the slot is two parts with the main part, including first work wing and second work wing. The groove is used for accommodating the arch wire and is provided with two opposite side walls and a bottom wall, and the upper part of the groove is open.

The bottom plate is connected to the bottom surface of main part, and the bottom plate is used for gluing the support groove on the tooth surface.

The cover body part is connected to the surface of the main body part and used for opening or closing the groove. Preferably, the cover body is slidably connected to the lip side of the second operating wing.

For the present invention, the bottom plate and the lid portion are unnecessary components. As a preferred embodiment, the two parts are provided.

The main body part comprises an occupying part and a traction part, wherein the occupying part and the traction part are independent parts and are in non-fixed connection with each other. The main part is equipped with the open appearance chamber of intercommunication slot, holds the chamber holding and occupies the part, and traction element can dismantle with holding the chamber and be connected.

Specifically, the cavity is disposed on the first working wing of the main body, and in this embodiment, the cavity is preferably a stepped through hole, which penetrates through the surface of the main body and the groove along the gingival jaw direction, and the opening is disposed on the gingival surface of the main body. Adjacent the opening is a small step hole and adjacent the slot is a large step hole. The large-step hole is at least partially provided with internal threads.

The occupying part is a screw rod which is provided with an external thread. The occupying part is at least partially arranged in the containing cavity, and the occupying part is in threaded matching butt joint with the large-step hole in the containing cavity. One end of the occupying part faces to the cavity opening, and the end face of the occupying part is provided with a transmission matching bit for transmission connection; the other end of the occupying part faces the groove, and the end face of the occupying part is a functional surface of the occupying part. The driving fitting element of the present embodiment is a hexagonal protrusion, and correspondingly, the receiving end of the screwing tool is a hexagonal socket.

The traction part is a bolt body, one end of the traction part radially protrudes to form a bolt head which is a traction end; the other end of the traction part is an access end which is provided with an inner hexagonal hole to match the transmission fitting position of the butt joint occupying part.

Working principle of example 3:

in the first state, the placeholder is completely in the cavity, and the effective space of the groove is the largest. The traction component is detached from the main body part. The bracket in the first state has neither the traction nor the occupancy function applied.

And a second state, wherein the traction component is connected on the basis of the first state. Specifically, the access end of the traction part enters the containing cavity and is in butt joint with the transmission fitting bit of the occupying part, the inner hexagonal hole is in interference fit with the hexagonal protrusion, the traction part is detachably connected with the containing cavity, and the traction end of the traction part is arranged above the main body part and can perform a traction function.

And in the third state, on the basis of the first state, the effective space of the groove is adjusted, and the space occupying function is implemented. Specifically, the connecting end of the screwing tool is in butt joint with the transmission fitting bit of the occupying part, the occupying part is driven to rotate in the forward direction or the reverse direction, the external thread of the occupying part is meshed with the internal thread of the accommodating cavity to change, and the occupying part can enter and exit the groove or move in the groove along the groove width direction. Such as: forward rotation is twisted instrument soon and is driven the part that occupies and be close to the second and work the wing, and the effective space of groove diminishes, and the reverse rotation is twisted instrument soon and is driven the part that occupies and keep away from the second and work the wing, the effective space grow of groove. When the turning tool is pulled out, the effective space of the slot is determined again. Or, insert the traction part, the incoming end of traction part gets into and holds the chamber and dock the transmission fitting bit of occupying part promptly, revolves the instrument butt joint traction part of twisting, drives the traction part and rotates to drive occupying part, occupying part's external screw thread and the internal thread interlock that holds the chamber change, realize occupying part business turn over groove or move along the groove width direction in the groove promptly. Such as: the forward rotation pulls the part, and the occupation part is close to the second work wing, and the effective space of slot diminishes, and the reverse rotation pulls the part, and the occupation part is kept away from the second work wing, and the effective space grow of slot. When the traction element is pulled out, the effective space of the groove is determined again.

And a fourth state, wherein the traction component is connected on the basis of the third state. Specifically, the access end of the traction part enters the containing cavity and is in butt joint with the transmission fitting position of the occupying part, the hexagonal socket is in interference fit with the hexagonal protrusion, the traction part is detachably connected with the containing cavity, and the traction end of the traction part is arranged above the main body part. Or, on the basis of the second state, the effective space of the groove is adjusted by driving the occupying part through the traction part.

The first state, the second state, the third state and the fourth state can be freely switched, and the four states do not have strict conversion sequence.

Example 4

Referring to fig. 24, the bracket 103 of this embodiment 4 is substantially identical in construction to the bracket of embodiment 3, except for the interfacing relationship of the distraction member 360 and the placeholder member 350. Specifically, the access end 361 of the traction member 360 of embodiment 4 is a square protrusion, and correspondingly, the transmission fitting bit 351 of the placeholder 350 of embodiment 4 is a square hole.

The working principle of embodiment 4 is basically the same as that of embodiment 3, and the description thereof is omitted.

In the solutions of embodiments 3 and 4, the transmission mating element of the placeholder element can be mated not only to the insertion end of the screwing tool, but also to the insertion end of the traction element. The placeholder member can then be turned by screwing the tool without accessing the traction member. After the traction part is connected, the traction part can be driven by a screwing tool to drive the occupying part to rotate. By the design, the operation of doctors is convenient, the efficiency is improved, and the situation that the traction part is repeatedly dismounted and mounted when the occupying part is adjusted is avoided.

It can be seen from examples 1-4 that the traction means can be detachably connected to the cavity and that the traction means can also be detachably connected to the placeholder. In other embodiments, the traction member may also be removably coupled to both the receptacle and the placeholder.

The detachable connection mode comprises clamping, interference fit and screw connection, and the clamping comprises an elastic buckle and a buckle position, a clamping protrusion and a buckle position, and an annular groove and a flange. Specifically, the traction component is clamped, interference-fitted or screwed into the cavity, or the traction component is clamped or interference-fitted into the placeholder component. Such as: the outer side wall of the access end of the traction part is provided with a hemispherical bulge, and correspondingly, the inner wall of the containing cavity is inwards concave to form a hemispherical buckling position, or the buckling position is arranged on the inner wall of the threaded shaft sleeve; or the outer side wall of the access end of the traction part is provided with an elastic buckle, correspondingly, the inner wall of the containing cavity is concaved inwards to form a buckling position, or the buckling position is arranged on the inner wall of the threaded shaft sleeve; or the traction part is in interference fit with the containing cavity, or the traction part is in interference fit with the occupying part; or the access end of the traction part is provided with an external thread, and correspondingly, the inner wall of the containing cavity is provided with an internal thread; or the traction part is in interference fit with the occupying part and the containing cavity at the same time, or the traction part is clamped with the occupying part and the containing cavity at the same time.

In embodiment 1, the access end of the traction component is provided with an inward concave part for avoiding the placeholder. In other embodiments, where the placeholder is sufficiently deeply buried, the access end of the traction member need not be provided with a recessed portion.

In embodiments 1 and 2, the pulling end of the pulling member is a bolt head. In other embodiments, the pulling end may be hook-shaped or otherwise shaped for pulling.

In examples 1 and 3, the drive fitting was a hexagonal boss, and in examples 2 and 4, the drive fitting was a square blind hole. In other embodiments, the drive adapter may be an inner n-angle hole or an n-angle protrusion corresponding to different shapes of the insertion end of the screwing tool, wherein n is a natural number and 1 < n. Further, transmission adaptation position also can be all cross sections such as elliptical hole, oval arch, petal form arch or petal form hole and be non-circular hole or protruding to can drive the placeholder part and rotate after realizing to twist the instrument and match the placeholder part.

In embodiments 1 to 4, the placeholder member is initially arranged in the cavity, and when the screwing tool is controlled to drive the placeholder member, the placeholder member can enter the groove or can completely exit the groove. In other embodiments, the placeholder member may also be arranged in the cavity in the initial state, partly matching the cavity thread and partly in the slot. When the screwing tool is controlled to drive, the occupying part can move in the groove along the width direction of the groove and can also partially withdraw from the groove.

In examples 1 to 4, the outline of the functional surface of the placeholder component is identical to the hollowed-out portion of the side wall of the slot in which it is located, and when the placeholder component exits the slot, the functional surface of the placeholder component fills the side wall of the slot, making it flat. In other embodiments, i.e. as mentioned above, in which the placeholder member has a portion which is always arranged in the slot, the functional surface of the placeholder member extends in the axial direction of the slot to cover the side walls of the slot.

In each of examples 1-4, a chamber was provided. The holding cavity has the function of accommodating the occupying part, and the parts are prevented from being exposed, so that the whole structure is built-in, the appearance is neat and attractive, and the comfort of a patient is improved. In addition, when the traction component is connected with the containing cavity, the containing cavity is favorable for avoiding the interaction of the traction function and the space occupying function. In particular, the traction element of the present invention has a certain mobility compared to conventional traction elements fixedly connected to the main body. When the traction means performs traction, the traction means may be subjected to very slight positional deviations or deflections under the force of the ligature or rubber band. Similarly, the placeholder component has certain mobility, and when the placeholder component performs the placeholder function, slight position deviation may be generated under the acting force of the arch wire. For embodiments where the traction member is drivingly connected to the placeholder, the deviation may be transmitted. Of course, this deviation and indirect effect is not significant, but is fundamentally avoided if the traction means is directly connected to the housing.

In other embodiments, the cavity is not limited to be open at both ends, and may have other shapes or be in higher communication with the outside. For the non-self-locking orthodontic bracket, the surface of the working wing is inherently provided with a plurality of grooves, namely, the grooves are spaces suitable for accommodating the space occupying parts, and the spaces are accommodating cavities, so that the space occupying parts do not obviously protrude out of the main body part. The mode that the placeholder part exposes can effectively reduce the processing degree of difficulty and manufacturing cost.

In the above embodiments, the main body and the lid are combined into a smooth curved surface. Is a preferred embodiment, effectively reducing the foreign body sensation and the uncomfortable sensation of the user. In other embodiments, the body portion may be a conventional square self-ligating bracket. The connection between the cap and the main body is not limited to sliding connection, and other embodiments may be rotation connection, flip connection, and the like.

In other embodiments, the body portion is a non-self-ligating bracket, i.e., a cover portion that is not provided to cover the slot. In other embodiments of the present invention, the bottom plate is not provided, as long as the bottom surface of the main body has a structure to be adhered to the tooth surface.

The above embodiments are all orthodontic brackets. In other embodiments, the orthodontic appliance of the invention is a buccal tube. Some conventional buccal tubes are not designed with working wings, but are provided with grooves which divide the main body of the buccal tube into two components. The present invention is applicable to orthodontic appliances having a slot dividing a body portion thereof into two component parts.

The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are also intended to be included within the scope of the claims and the equivalent technical scope of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (9)

1. An orthodontic appliance characterized by: the traction device comprises a main body part, a traction part and an occupying part, wherein the traction part and the occupying part are mutually independent; the traction component is detachably connected with the containing cavity and/or the occupying component; the occupying part is movably connected with the containing cavity, and is provided with a transmission matching bit which is used for matching and connecting a screwing tool or the traction part; driven by a screwing tool or a traction part, at least part of the occupying part enters or exits the groove or moves in the groove along the width direction of the groove so as to change the effective space of the groove.

2. The orthodontic appliance of claim 1 wherein: the accommodating cavity is a through hole vertically penetrating through the surface of the main body part and the groove, and the through hole is movably connected with the occupying part through threads.

3. The orthodontic appliance of claim 1 wherein: the traction component is provided with an access end, the access end is clamped, screwed or in interference fit with the containing cavity, and/or the access end is clamped, screwed or in interference fit with the occupying component.

4. The orthodontic appliance of claim 1 wherein: the traction part is provided with an access end which is detachably connected with the transmission adapting piece.

5. The orthodontic appliance of claim 1 wherein: the transmission fitting positions are non-circular holes or protrusions.

6. The orthodontic appliance of claim 5 wherein: the transmission fitting bit is an inner n-angle hole or an inner n-angle bulge, and a hole or a bulge with a non-circular cross section, wherein n is a natural number and is not less than 1.

7. The orthodontic appliance of claim 1 wherein: the transmission fitting positions are elastic buckles, clamping bulges or buckling positions.

8. The orthodontic appliance of claim 1 wherein: the bottom plate is further included, and the main body portion is arranged on the bottom surface.

9. The orthodontic appliance of claim 1 further comprising a cap portion connected to the body portion

And the groove is used for covering or opening the groove.

Images