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CN-224220260-U - Orthodontic bracket

CN224220260UCN 224220260 UCN224220260 UCN 224220260UCN-224220260-U

Abstract

The utility model provides an orthodontic bracket, which comprises a bottom plate, wherein a fixing block is arranged on the bottom plate, the fixing block comprises an upper wing and a lower wing, a sliding groove is formed in the top surface of the upper wing in a penetrating way, a lock cover is connected in a sliding way, a first groove is formed in the sliding groove, the first groove is arranged in the sliding groove and is close to the vertical inner wall of one side of the bottom plate, a through hole is formed in the position of the lock cover corresponding to the first groove, a shaft wire is arranged in the through hole, one end of the shaft wire is positioned in the first groove, a limiting lug is arranged on the vertical inner wall of one side of the first groove, the first groove is divided into two symmetrical placing grooves by the limiting lug, and the shaft wire is made of a deformable material.

Inventors

  • ZHI WENBING
  • LIANG JUNRONG
  • LI JUNJIANG

Assignees

  • 广州创启医疗科技有限公司

Dates

Publication Date
20260512
Application Date
20250415

Claims (6)

  1. 1. The utility model provides an orthodontic bracket, including bottom plate (101), be provided with fixed block (102) on bottom plate (101), fixed block (102) are including upper wing (103) and lower wing (104), clearance formation archwire slot (111) between upper wing (103) and the lower wing (104), spout (105) have been seted up in the penetration of upper wing (103) top surface, spout (105) are linked together with the vertical face in one side that bottom plate (101) was kept away from to upper wing (103), sliding connection has locking closure (107) in spout (105), the cross section of spout (105) and locking closure (107) all sets up to T font structure, its characterized in that: the sliding groove (105) is provided with a first groove (106), and the first groove (106) is arranged in the sliding groove (105) and is close to the vertical inner wall of one side of the bottom plate (101); A through hole (108) is formed in the position, corresponding to the first groove (106), of the lock cover (107), a shaft wire (109) is arranged in the through hole (108), and one end of the shaft wire (109) is positioned in the first groove (106); The cross section of the first groove (106) is of a polygonal structure, a limit lug (110) is arranged on the vertical inner wall of one side of the first groove (106), and the limit lug (110) divides the first groove (106) into two symmetrical placing grooves; The shaft wire (109) is made of deformable materials, so that the shaft wire (109) deforms under the action of external force, and the position of the shaft wire can be adjusted in the two placing grooves in the first groove (106).
  2. 2. The orthodontic bracket of claim 1, wherein the wire (109) is formed of a nickel titanium alloy material that is adapted to return to its original shape under the influence of the temperature of the mouth after deformation.
  3. 3. The orthodontic bracket of claim 2, wherein the wire (109) is configured in a cylindrical configuration to facilitate smoother adjustment and reduce resistance when the surgeon pushes against the locking cap (107).
  4. 4. The orthodontic bracket of claim 1, wherein the first groove (106) is rectangular in cross-section and the limit bump (110) is rectangular in cross-section to facilitate the limit effect on the axle wire (109) by engaging the outer side wall of the axle wire (109).
  5. 5. The orthodontic bracket of claim 1, wherein the top surface of the lower wing (104) is provided with a second groove (201) near the edge of the locking cover (107) for forming an operating groove between the second groove (201) and the locking cover (107), and the operating groove is used for placing an unlocking tool to open the locking cover (107).
  6. 6. The orthodontic bracket of claim 5, wherein a first projection (301) is provided on a vertical surface of the lock cover (107) and on a side close to the lower wing (104), a second projection (302) is provided on a vertical surface of the lower wing (104), and the first projection (301) and the second projection (302) form a force supporting point, so that stability and safety in unlocking operation are improved.

Description

Orthodontic bracket Technical Field The utility model relates to the technical field of oral brackets, in particular to an orthodontic bracket. Background The bracket is an important part for fixing the orthodontic technology, is directly adhered to the surface of the dental crown by using an adhesive, and applies various orthodontic forces to teeth by the archwire through the bracket, and is made of stainless steel, biological ceramics or composite resin. In the prior art, the self-locking bracket adopts a sliding type locking cover to replace the traditional ligature (with a rubber ring or ligature wire), so that the friction resistance between the arch wire and the bracket is obviously reduced, the light force correction is realized, and the comfort level of a patient is improved. However, the locking cover of the current self-locking bracket commonly adopts a simple sliding rail type locking structure, and the design has the obvious defects that alternating shearing force generated in the chewing process can form stress concentration along a sliding rail contact surface when the stress exceeds a critical value of the locking structure (namely, the locking cover can move up and down frequently due to friction force during chewing), the locking cover is easy to deviate off accidentally, for example, the locking cover deviates off, the correction force transmission is interrupted, the treatment process is prolonged, and even displacement recurrence occurs due to the fact that teeth lose continuous control, so that the stability of the correction effect is influenced. Disclosure of utility model In view of this, the utility model provides an orthodontic bracket, which can be matched with a deformable shaft wire through a first groove with a limit lug in a chute, so that the shaft wire is regulated between two placing grooves and is blocked and fixed by the limit lug when a lock cover is opened and closed, the stress concentration of a traditional sliding rail is avoided, the risk of falling out of the lock cover is reduced, and the stable transmission and effect of correction force are ensured. In order to solve the technical problems, the utility model provides an orthodontic bracket which comprises a bottom plate, wherein a fixed block is arranged on the bottom plate and comprises an upper wing and a lower wing, a gap between the upper wing and the lower wing forms an archwire groove, the top surface of the upper wing is provided with a sliding groove in a penetrating way, the sliding groove is communicated with a vertical surface of one side, far away from the bottom plate, of the upper wing, a locking cover is connected in the sliding groove in a sliding way, and the cross sections of the sliding groove and the locking cover are in a T-shaped structure. The chute is provided with a first groove, the first groove is arranged in the chute and is close to the vertical inner wall of one side of the bottom plate, and the cross section of the first groove is of a rectangular structure. The through hole has been seted up to the position that the locking closure corresponds first recess, be provided with the axle silk in the through hole, the axle silk penetrates in the through hole, the through hole sets up in the axle center department of locking closure, the first recess corresponds the middle part setting of the vertical inner wall in one side at first recess place equally, thereby can make the axle silk atress even in the slip in-process, avoid leading to slope or jamming because of eccentric atress, and the middle part location makes the cooperation of axle silk and both sides spout more balanced, axle silk one end is located first recess, make the axle silk can carry out the position control of upper and lower position in first recess. The shaft wire is arranged into a cylindrical structure, so that the load is diffused through the arc surface of the shaft wire, the shaft wire is more smooth when being convenient to adjust, and the resistance of a doctor when pushing and pressing the lock cover is reduced. The shaft wire is set to be a deformable material, so that the shaft wire deforms under the action of external force, and the position of the shaft wire can be adjusted in the two placing grooves in the first groove. The shaft wire is made of nickel-titanium alloy, so that after deformation, the original shape is recovered under the action of oral temperature, and the limiting effect of the shaft wire is further improved. Be provided with spacing lug on the vertical inner wall in one of them one side of first recess, spacing lug divide into two symmetrical standing grooves with first recess, and two standing grooves set up in spacing lug both sides respectively, make the axle silk adjust along with the locking closure and can carry out position control in two standing grooves, and the cross section of spacing lug sets up to rectangular structure, and the lateral wall of the cooperation axle silk of bei