Orthodontic self-locking bracket and system with controllable arch wire torque

1 . An orthodontic bracket with a controllable arch wire torque, comprising:

a bracket body, and

a hollow elastic tube, wherein:

a groove is provided in the bracket body

the elastic tube is connected to a side wall of the groove;

the elastic tube and another side wall of the groove are configured to accommodate an arch wire;

the elastic tube is capable of elastically deforming under a squeezing action of the arch wire; and

the elastic tube is capable of elastically deforming on a part close to a bottom surface of the groove and a part away from the bottom surface of the groove, to elastically act on the arch wire at different twist angles.

2 . The orthodontic bracket with a controllable arch wire torque according to claim 1 , wherein a clamping groove is provided on the side wall of the groove, and the clamping groove fits the elastic tube, so that an outer side wall of the elastic tube is protruded from the clamping groove; and a deformation gap is provided between an inner wall of the clamping groove and the elastic tube, and the deformation gap is used for allowing the elastic tube to deform.

3 . The orthodontic bracket with a controllable arch wire torque according to claim 2 , wherein a fixing part is integrally formed on the side wall of the groove, and the fixing part is provided with the clamping groove.

4 . The orthodontic bracket with a controllable arch wire torque according to claim 1 , wherein a longitudinal axis direction of the elastic tube is perpendicular to the bottom surface of the groove.

5 . The orthodontic bracket with a controllable arch wire torque according to claim 4 , wherein the elastic tube comprises two elastic tubes which are distributed at two ends in a direction parallel to the bottom surface of the groove.

6 . The orthodontic bracket with a controllable arch wire torque according to claim 1 , wherein a longitudinal axis direction of the elastic tube is parallel to the bottom surface of the groove.

7 . The orthodontics bracket with a controllable arch wire torque according to claim 6 , wherein the elastic tube comprises two elastic tubes, and the two elastic tubes are distributed at two ends in a direction perpendicular to the bottom surface of the groove.

8 . The orthodontics locking bracket with a controllable arch wire torque according to claim 1 , wherein the elastic tube is provided with a cutting seam, and the cutting seam is used to increase an elastic deformation capability of the elastic tube.

9 . An orthodontic bracket system with a controllable arch wire torque, comprising the elastic tube according to claim 1 , and further comprising a plurality of brackets, wherein a groove is provided in the bracket, an elastic tube is disposed in the groove, and the plurality of brackets comprises a first bracket, a second bracket, and a third bracket;

there are two elastic tubes of the first bracket in a direction perpendicular to a bottom surface of the groove, and the two elastic tubes are distributed on two sides in a direction parallel to the bottom surface of the groove;

there is one elastic tube of the second bracket in the direction perpendicular to the bottom surface of the groove, and the one elastic tube is distributed on one side of the groove in the direction parallel to the bottom surface of the groove;

there is one elastic tube of the third bracket in the direction perpendicular to the bottom surface of the groove, and the one elastic tube is distributed in the middle of the groove in the direction parallel to the bottom surface of the groove; and

the first bracket is disposed on an incisor, the second bracket is disposed on a canine, the third bracket is disposed on a front molar, and the first bracket, the second bracket, and the third bracket are matched with each other, so that the arch wire generates different orthodontic forces corresponding to different tooth parts.

10 . The orthodontic bracket with a controllable arch wire torque according to claim 1 , wherein a cover plate covers an upper part of the groove.

11 . The orthodontic bracket with a controllable arch wire torque according to claim 10 , wherein the cover plate is movable between a maximum open position and a closed position, and in both the closed position and the maximum open position, the cover plate covers the elastic tube and blocks the elastic tube from dropping out of the orthodontic bracket.

12 . An orthodontic bracket with a controllable arch wire torque, comprising:

a bracket body; and

an elastic member, wherein:

a groove is provided in the bracket body;

the elastic member is connected to a side wall of the groove;

the elastic member and another side wall of the groove are configured to accommodate an arch wire;

the elastic member is capable of elastically deforming under a squeezing action of the arch wire;

the elastic member is capable of elastically deforming on a part close to a bottom surface of the groove and a part away from the bottom surface of the groove, to elastically act on the arch wire at different twist angles; and

a longitudinal axis direction of the elastic member is perpendicular to the bottom surface of the groove.

13 . The orthodontic bracket with a controllable arch wire torque according to claim 12 , wherein the elastic member comprises two elastic members which are distributed at two ends in a direction parallel to the bottom surface of the groove.

14 . An orthodontic bracket with a controllable arch wire torque, comprising:

a bracket body; and

two elastic members, wherein:

a groove is provided in the bracket body;

the two elastic members are distributed at two ends in a direction perpendicular to the bottom surface of the groove, each elastic member being connected to a side wall of the groove;

the elastic members and another side wall of the groove are configured to accommodate an arch wire;

the elastic members are capable of elastically deforming under a squeezing action of the arch wire;

the elastic members are capable of elastically deforming on a part close to a bottom surface of the groove and a part away from the bottom surface of the groove, to elastically act on the arch wire at different twist angles; and

a longitudinal axis direction of each elastic member is parallel to the bottom surface of the groove.