WO2012025050A1 - 一种带有锁扣装置的整体金属自锁托槽 - Google Patents

一种带有锁扣装置的整体金属自锁托槽 Download PDF

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Publication number
WO2012025050A1
WO2012025050A1 PCT/CN2011/078838 CN2011078838W WO2012025050A1 WO 2012025050 A1 WO2012025050 A1 WO 2012025050A1 CN 2011078838 W CN2011078838 W CN 2011078838W WO 2012025050 A1 WO2012025050 A1 WO 2012025050A1
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WIPO (PCT)
Prior art keywords
locking
locking device
axis
bracket
groove
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PCT/CN2011/078838
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English (en)
French (fr)
Inventor
黄兵民
张栋梁
林琳
陈华
Original Assignee
北京圣玛特科技有限公司
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Application filed by 北京圣玛特科技有限公司 filed Critical 北京圣玛特科技有限公司
Publication of WO2012025050A1 publication Critical patent/WO2012025050A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/28—Securing arch wire to bracket
    • A61C7/30—Securing arch wire to bracket by resilient means; Dispensers therefor

Definitions

  • the utility model relates to the field of dental orthodontic instruments, in particular to an integral metal self-locking bracket with a locking device.
  • Orthodontic treatment is a specialized discipline in the field of dentistry. It mainly treats teeth, jaws, and facial deformities. It gradually restores the normal occlusion function of the patient by fixing the orthodontic appliance inside the oral cavity.
  • the bracket is an important part of the orthodontic appliance. It is mainly bonded to the anterior teeth, the canines and the premolars. The orthodontic treatment guides the dislocated teeth to the ideal position by installing the correcting archwire in the groove of the bracket. s position.
  • brackets use a ligation wire or an elastic rubber band to ligature the arch wire in the groove.
  • this type of fixing has the disadvantages of inconvenient clinical operation, large friction, and poor comfort.
  • the emergence of self-ligating bracket correction systems has introduced new methods for orthodontic treatment of malocclusion.
  • the biggest feature of the self-locking bracket is that the self-locking structure of the bracket replaces the traditional ligature wire (loop) to ligature the archwire, which reduces the friction inside the orthodontic appliance and makes the correction efficiency significantly increase. Comfortable and safe fixed orthodontic device.
  • the self-locking bracket has the unique advantages of low friction, reduced loss of anchorage, improved clinical operation efficiency, and light response of the patient to the traditional bracket, and the self-locking bracket is stable, small and beautiful, and the patient wears Comfortable, easy to clean, shorter chair time, longer consultation interval, high efficiency and shorter course of treatment.
  • the self-locking brackets have been recognized and affirmed by more and more orthodontists.
  • a common self-locking bracket is a passive sl ide or a spring cl ip.
  • the slide brackets are provided with sliding covers on both sides of the groove. After the arch wire is inserted, the sliding cover is pushed to form a solid closed wire which can be freely moved by the arch wire. It is also called passive self-ligation. Bracket ).
  • the lock-type bracket has a built-in high-elastic locking device. The elastic pressure generated after closing can act on the archwire when needed, providing continuous and gentle orthodontic force. Also known as active self-ligating bracket (active self-l igating) Bracket ). Since the self-locking device of the self-locking bracket is mostly located on the metal surface of the bracket, it is convenient to use a tool or a fingertip switch, and the ligation process is simpler.
  • self-locking brackets still have some drawbacks in clinical applications.
  • the first is that it is difficult to accurately position the self-locking brackets. This is because the shape of most types of self-locking brackets is quite different from that of the traditional double-wing brackets compared to the traditional double-wing brackets.
  • the structure is more complicated and there are no obvious double wings, which may cause the doctor to hold the self-locking brackets, and the arc of the self-locking bracket bottom surface and the tooth surface do not match well, and it is difficult to accurately locate the self-locking bracket. .
  • Once the position of the self-locking bracket is incorrect, it will increase the difficulty of fine adjustment in the later stage, thus prolonging the treatment time in the fine adjustment stage, which brings inconvenience to the clinical operation.
  • the self-locking bracket itself has certain design defects. If the sliding cover or the locking device is accidentally opened due to some unexpected factors, the control of the arch wire will be lost, which will affect the treatment effect, and the treatment time will be extended. Moreover, due to the complicated structure of the self-locking bracket, some external forces (including chewing force) and incorrect operation of the doctor may cause damage to the self-locking bracket, which may cause the slide or the locking device to be unable to open and close, in severe cases Even the brackets are scrapped, which increases the economic burden on patients and increases the cost of treatment.
  • the self-locking device of the self-locking bracket usually occupies a large space on the tooth surface, so that the thickness of the self-locking bracket is large, and may fall off during chewing, which has limitations on the use of children with poor compliance and deep overbite.
  • the bracket groove of the self-locking bracket is short and blunt, the retention is inconvenient and slippery when adding the ligation attachment, and in the process of inserting the archwire and removing the archwire, the self-locking bracket and the traditional double wing support
  • the slot is extremely uncomfortable and often causes pain in the patient.
  • it is difficult to close the slide or lock device which limits the use of traditional fine adjustment methods.
  • the utility model aims at the deficiencies of the prior art, and proposes a working wing and a locking device with an integral forming, which can conveniently fix the archwire to the groove formed by the groove of the working wing and the hollow part of the locking device.
  • the wire groove In the wire groove, it has good clamping force and fixing force, and can bear the whole metal self-locking bracket which can be loaded and unloaded without deformation in clinical several times.
  • An integral metal self-locking bracket with a locking device characterized in that it comprises a base, and one or more working wings and one or more locking devices disposed on one side of the base,
  • the working wing is a symmetrical structure in which a groove is disposed in a middle of a wing, and all the grooves of the working wing are on one axis;
  • the locking device includes a longitudinal arm, one end of the longitudinal arm is connected to the base, and the other end Extending laterally in the direction of the axis to form an arm tip; an inner edge of the trailing arm and the arm tip facing the axis and the groove together form an archwire slot.
  • the working wing and the locking device are integrally formed with the base, and the integral working body is formed by metal casting, metal powder injection molding, wire cutting, laser engraving or laser cutting by using the working wing, the locking device and the base.
  • One piece structure One piece structure.
  • the material of the substrate, the working wing and the locking device is a nickel titanium shape memory alloy, a nickel titanium based shape memory alloy, a titanium based alloy or stainless steel.
  • the locking device is disposed between and/or outside the working wings.
  • At least two of the latching devices are symmetrically disposed on either side of the axis to form a latching set, the latching set being disposed between and/or outside the working wings.
  • Two of the locking devices in one of the locking sets are integrally connected at the bottom of the trailing arm, and the trailing arms and arm tips of the two locking devices face a hollow portion facing the inner edge of the axis, The hollow portion forms a C shape with an opening upward.
  • the top of the arm tip of the locking device is a circular arc that converges toward the end of the arm tip.
  • the locking device is asymmetrically disposed on both sides of the axis.
  • the latching devices are each disposed on one side of the axis.
  • the other latching means are arranged asymmetrically on either side of the axis or are disposed on one side of the axis.
  • the integral metal self-ligating bracket of the present invention comprises a base, and two working wings and one or more locking devices disposed on one side of the base, the working wings being symmetrically disposed with a groove in the middle of a wing
  • the inner edge of the locking device facing the axis forms an archwire groove together with the groove, and the working wing and the locking device are integrally formed with the base.
  • the integral metal self-locking bracket of the utility model forms a archwire slot for fixing the archwire through the locking device and the groove in the middle of the working wing, when the archwire enters the archwire After the slot, the locking device can be quickly restored to its original shape, and the arm tip extending from the locking device to the archwire slot effectively engages the archwire in the archwire slot, and the engagement is stable, and the orthodontic force of the archwire is fully exerted. Therefore, the utility model does not need to additionally add a device for locking the archwire at the top of the working wing, which effectively reduces the thickness of the metal self-locking bracket and makes the wearing feeling of the patient more comfortable.
  • the locking device of the metal self-locking bracket of the present invention is integrally formed with the bracket portion, there is no movable hinge structure commonly used in the gland type self-locking bracket, so that there is almost no sanitary corner and it is easy to clean. Moreover, the locking device has the advantages of stability and good elasticity, can withstand several times of clinical loading and unloading of the archwire without deformation, and maintains good clamping and retaining force. The elastic pressure generated by the locking device can be applied to the archwire when needed, providing a continuous gentle orthodontic force.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Embodiment 1 of the present invention is another schematic structural view of Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural view of a locking device of the present invention
  • Embodiment 2 of the present invention is a schematic structural view of Embodiment 2 of the present invention.
  • Figure 5 is a schematic view showing the structure of Embodiment 3 of the present invention.
  • Figure 6 is a schematic view showing the structure of Embodiment 4 of the present invention.
  • Figure 7 is a schematic view showing the structure of Embodiment 5 of the present invention.
  • Figure 8 is a schematic view showing the structure of Embodiment 6 of the present invention.
  • Figure 9 is a schematic view showing another structure of Embodiment 6 of the present invention.
  • Figure 10 is a schematic view showing the structure of Embodiment 7 of the present invention.
  • Figure 11 is another schematic structural view of Embodiment 7 of the present invention.
  • Figure 12 is a schematic view showing the structure of the embodiment 8 of the present invention.
  • Figure 13 is a schematic view showing the structure of Embodiment 9 of the present invention.
  • Figure 14 is another schematic view of the structure of the embodiment 9 of the present invention.
  • the self-ligating bracket of this embodiment includes a base 1, two working wings 2, and 2N locking devices 3, wherein N is a natural number, and the working wing 2 and the locking device 3 can be combined with the base.
  • N is a natural number
  • the production method uses metal casting, metal powder injection molding, wire cutting and other integral molding methods.
  • the self-locking bracket is made of a metal material such as a nickel-titanium-shaped memory alloy, a titanium-based alloy, or a stainless steel.
  • the substrate 1 has a rectangular plate shape, the front surface of the substrate 1 is a surface 11, the back surface is an adhesive surface 12, the surface 11 is a smooth surface, and the adhesive surface 12 is provided with a groove-like groove 13 for facilitating the inflow of the adhesive.
  • the two working wings 2 respectively occupy the near-distal direction of the surface 11, the working wing 2 includes a bottom bracket 21 connected to the surface 11, and a groove 22 formed by recessing the top of the bottom bracket 21 for mounting the correction arch wire,
  • the two side walls of the groove 22 extend outward to form an everted flap 23; the grooves 22 of the two working wings 2 are on the same axis.
  • the sidewalls of the grooves 22 are parallel or approximately parallel to each other and are perpendicular or approximately perpendicular to the surface 11.
  • the surface 11 has a linear mark 5 perpendicular to the axis of the groove 22 for clinical adhesive positioning.
  • the linear mark 5 is preferably disposed at the middle of the substrate 1, and the linear mark is provided. 5 can be a groove or a rib.
  • the single locking device 3 has a "7" shape, including a trailing arm 31 and an arm tip 32.
  • the trailing arm 31-end is connected to the surface 11 and the other end extends horizontally in the axial direction of the slot 22.
  • An arm tip 32 is formed at the end.
  • the locking device 3 extends from the surface 11 and its inner edge facing the axis of the groove 22 cooperates with the grooves 22 of the two working wings 2 to form a rectangular archwire slot 4 for receiving the correction archwire.
  • the archwire slot 4 can be made into a rectangular space that can accommodate up to 0.018 X 0.025 inches to 0.022 X 0.028 inches of archwires as needed.
  • the top of the arm tip 32 is a circular arc that converges toward the end of the arm tip 32.
  • the 2N locking devices 3 in this embodiment are divided into N groups, and the two locking devices 3 of each group are symmetrically disposed on both sides of the axis of the slot 22, and the N sets of locking devices are provided. 3 is disposed between the two work wings 2 in the axial direction. In the relaxed state, the two opposing longitudinal arms 31 are parallel or approximately parallel, and are perpendicular or approximately perpendicular to the surface 11, and the gap between the two arm tips 32 forms the entrance of the archwire slot 4.
  • the entrance of the archwire slot 4 is rounded V Shape, after pressing the archwire from the outside, the two opposite arm tips 32 are easily separated, and the archwire is smoothly pressed into the archwire slot 4 from the entrance of the enlarged archwire slot 4.
  • the two locking devices 3 of a group can be integrally connected at the bottom of the trailing arm 31, and the hollow portion between the two locking devices 3 forms a "C" shape which is approximately notched upward.
  • the shape of the hollow portion between the two locking devices 3 is identical to the contour of the inner edge of the groove 22.
  • the arched groove 4 formed by the hollow portion and the groove 22 not only enhances the control and clamping ability of the archwire, but also Within a certain range of force values, the archwire is effectively prevented from ejecting from the inside of the archwire slot 4.
  • the locking device 3 will be separated in the opposite direction by the pulling force, and the archwire is ejected from the archwire slot 4, thereby protecting the teeth from excessive orthodontic damage. And avoiding the self-locking bracket from falling off from the fixed position due to excessive force.
  • the locking device 3 disposed between the two working wings 2 is removed from the self-locking bracket of the present embodiment, and additionally in the direction along the axis of the groove 22.
  • a set of locking devices 3 are respectively arranged on the outer surface 1 of the two working wings 2.
  • the two locking devices 3 of each group are symmetrically disposed on both sides of the axis of the slot 22, and the two locking devices 3 of the group are integrally connected at the bottom of the trailing arm 31, between the two locking devices 3
  • the hollow portion forms a "C" shape that approximates the notch upward.
  • the shape of the hollow portion between the two locking devices 3 is identical to the contour of the inner edge of the groove 22.
  • the arched groove 4 formed by the hollow portion and the groove 22 not only enhances the control and clamping ability of the archwire, but also Within a certain range of force values, the archwire is effectively prevented from ejecting from the inside of the archwire slot 4.
  • a pair of locking devices 3 are respectively added to the surface 1 on the outer side of the two working wings 2 in the direction along the axis of the groove 22.
  • the two locking devices 3 of each group are symmetrically disposed on both sides of the axis of the slot 22, and the two locking devices 3 of the group are integrally connected at the bottom of the trailing arm 31, between the two locking devices 3
  • the hollow portion forms a "C" shape that approximates the notch upward.
  • the shape of the hollow portion between the two locking devices 3 is identical to the contour of the inner edge of the groove 22.
  • the arched groove 4 formed by the hollow portion and the groove 22 not only enhances the control and clamping ability of the archwire, but also Within a certain range of force values, the archwire is effectively prevented from ejecting from the inside of the archwire slot 4.
  • the self-ligating bracket of this embodiment includes a base 1, two working wings 2, and N locking devices 3, wherein N is a natural number, and the working wing 2 and the locking device 3 can be integrally formed with the base 1. .
  • All of the locking devices 3 are disposed on one side of the axis of the groove 22, and the arm tips 32 extend toward the other side of the axis of the groove 22.
  • the inner edges of all the locking devices 3 facing the axis of the groove 22 are aligned with the inner edge of one side of the groove 22.
  • the groove 22 and the inner edge of the locking device 3 facing the axis of the groove 22 are configured to be used for mounting the archwire.
  • the self-locking bracket of this embodiment places the two working wings 2 along the groove 22
  • the working wing 2 and the locking device 3 can be integrally formed with the base 1.
  • the inner edges of all the locking devices 3 facing the axis of the groove 22 are identical to the inner edge contour of the groove 22.
  • the groove 22 and the inner edge of the locking device 3 facing the axis of the groove 22 constitute a bow for mounting the archwire.
  • a lock is respectively disposed on the surface 1 of the outer side of the two working wings 2 in the direction of the axis of the groove 22 in the self-locking bracket of the embodiment.
  • the device 3, the working wing 2 and the locking device 3 can be integrally formed with the substrate 1.
  • the two locking devices 3 are respectively disposed on the same side or opposite sides of the groove 22, and the arm tips 32 extend toward the other side of the groove 22 axis.
  • the inner edges of all the locking devices 3 facing the axis of the groove 22 coincide with the contour of the inner edge of the groove 22.
  • the groove 22 and the inner edge of the locking device 3 facing the axis of the groove 22 constitute a bow for mounting the archwire.
  • a lock is respectively disposed on the surface 1 of the outer side of the two working wings 2 in the direction along the axis of the groove 22.
  • a locking device 3 is also arranged between the two working wings 2, and the arm tips 32 of all the locking devices 3 extend toward the other side of the axis of the groove 22, and the locking devices 3 are respectively arranged in the slots.
  • the working wing 2 and the locking device 3 can be integrally formed with the base 1.
  • the inner edges of all the locking devices 3 facing the axis of the groove 22 coincide with the contour of the inner edge of the groove 22.
  • the groove 22 and the inner edge of the locking device 3 facing the axis of the groove 22 constitute a bow for mounting the archwire.
  • the self-locking bracket of the present embodiment replaces the two locking devices 3 respectively disposed outside the two working wings 2 with two sets of locking devices 3, each group.
  • the two locking devices 3 are symmetrically disposed on both sides of the axis of the slot 22, and the two locking devices 3 in the group can be integrally connected at the bottom of the trailing arm 31, and the hollow between the two locking devices 3
  • the part forms a "C" shape that approximates the notch upward.
  • the shape of the hollow portion between the two locking devices 3 is identical to the contour of the inner edge of the groove 22.
  • the arched groove 4 formed by the hollow portion and the groove 22 not only enhances the control and clamping ability of the archwire, but also Within a certain range of force values, the archwire is effectively prevented from ejecting from the inside of the archwire slot 4.
  • the self-locking bracket of this embodiment replaces one locking device 3 disposed between the two working wings 2 with a locking device 3, each The two locking devices 3 of the group are symmetrically disposed on both sides of the axis of the slot 22, and the two locking devices 3 of the group can be integrally connected at the bottom of the trailing arm 31, between the two locking devices 3
  • the hollow portion forms a "C" shape that approximates the notch upward.
  • the shape of the hollow portion between the two locking devices 3 is identical to the contour of the inner edge of the groove 22.
  • the arched groove 4 formed by the hollow portion and the groove 22 not only enhances the control and the clamping ability of the archwire. Moreover, the archwire is effectively prevented from ejecting from the archwire slot 4 within a certain range of force values.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

说 明 书
一种带有锁扣装置的整体金属自锁托槽
技术领域
本实用新型涉及一种牙科正畸器械领域， 具体涉及一种带有锁扣装置的整体金属自锁托 槽。 背景技术
正畸治疗是牙科领域的一门专业化程度较高的分支学科， 主要是针对牙齿、 颌骨、 面部 畸形进行矫治， 通过在口腔内部固定正畸矫治器来逐渐恢复患者的正常咬合功能。 托槽是正 畸矫治器的重要组成部分， 主要粘接于前牙、 尖牙、 前磨牙上， 正畸治疗通过将矫治弓丝安 装在托槽的槽沟内， 引导错位的牙齿移动到理想的位置。
传统的托槽采用结扎丝或弹性橡皮圈结扎的方式将弓丝固定于槽沟内， 但这种固定方式 存在临床操作费时不便、 摩擦力大、 舒适程度差等缺点。 近年来， 自锁托槽（self-l igating bracket )矫治系统的出现为错牙合畸形的正畸治疗引入了新的方法。 自锁托槽最大的特点是 通过托槽的自锁结构替代传统结扎丝 （圈） 对弓丝进行结扎， 减小了正畸矫治器内部的摩擦 力， 使矫治效率显著增加， 是一种快速、 舒适、 安全的固定矫正装置。 目前， 自锁托槽相对 于传统托槽具有低摩擦力、 减少支抗丧失、 提高临床操作效率、 患者对疼痛反应轻等方面的 独特优点， 且自锁托槽啮合稳定、 小巧美观， 患者戴用舒适、 易于清洁， 椅旁时间縮短、 复 诊间隔延长， 矫治效率高、 疗程较短。 使得自锁托槽得到越来越多正畸医生的认识和肯定。
常见的自锁托槽为滑道式结构（a passive sl ide )或锁扣装置式结构 （a spring cl ip) 。 滑道式托槽在槽沟两侧设置滑盖， 将弓丝纳入后推动滑盖形成一个坚实的、 弓丝可自由移动 的封闭管道， 又称被动型自锁托槽 （passive self-l igating bracket ) 。 锁扣装置式托槽内 置高弹性锁扣装置， 关闭后产生的弹性压力可在需要时作用于弓丝， 提供持续轻柔的正畸力， 又称主动型自锁托槽 （active self-l igating bracket ) 。 由于自锁托槽的自锁装置多位于 托槽金属表面， 方便用工具或指尖开关， 结扎过程更为简便。
但是， 自锁托槽在临床应用中仍存在一些缺点。首先是自锁托槽粘接时难以准确地定位， 这是由于相对于传统的双翼托槽，多数种类的自锁托槽的形态和传统的双翼托槽存在较大的 不同，自锁托槽结构较复杂且没有明显的双翼， 这可能造成在粘结自锁托槽时医师不易持放， 导致自锁托槽底板与牙面的弧度不能很好地吻合， 难以准确地定位自锁托槽。 一旦自锁托槽 位置不正确将给后期精细调整增加困难， 从而延长了精细调整阶段的治疗时间， 给临床操作 带来不便。 其次是自锁托槽本身具有一定的设计缺陷， 如果受某些意外因素影响使其滑盖或锁扣装 置意外打开， 会失去槽沟对弓丝的控制， 影响治疗效果， 反倒延长了治疗时间； 而且由于自 锁托槽的结构比较复杂， 一些外力 （包括咀嚼力） 以及医师的不正确操作均可能造成自锁托 槽的损坏， 从而导致滑盖或者锁扣装置无法打开及关闭， 严重时甚至造成托槽报废， 增加了 患者的经济负担， 提高了治疗成本。
再次自锁托槽的自锁装置通常占据牙面上较大空间， 使得自锁托槽的厚度较大， 咀嚼时 可能脱落， 对依从性较差的儿童和深覆牙合患者使用存在局限性； 同时由于自锁托槽的托槽 翼短小圆钝， 在添加结扎附件时固位较不便、 易滑脱， 而且在插入弓丝和取出弓丝的过程中， 自锁托槽和传统的双翼托槽相比具有极大的不舒适性， 常常引起患者的疼痛。 除此之外， 在 使用弯曲的不锈钢方丝调整个别牙齿时， 弓丝就位较困难而无法关闭滑盖或锁扣装置， 这些 都限制了传统精细调整方式的使用。 实用新型内容
本实用新型针对现有技术的不足， 提出了一种带有一体成型的工作翼和锁扣装置， 可将 弓丝方便地固定在工作翼的槽沟和锁扣装置的中空部分共同形成的弓丝槽中， 具有良好的夹 持力合固定力， 可承受临床数次弓丝装卸而不变形的整体金属自锁托槽。
本实用新型的技术方案如下：
一种带有锁扣装置的整体金属自锁托槽， 其特征在于： 它包括一基底， 以及设置在所述 基底一面的一个或一个以上工作翼和一个或一个以上的锁扣装置， 所述工作翼为一双翼中部 设置一槽沟的对称结构， 所有所述工作翼的槽沟在一条轴线上； 所述锁扣装置包括一纵臂， 所述纵臂一端与所述基底连接， 另一端向所述轴线方向横向延伸形成臂尖； 所述纵臂和臂尖 面向所述轴线的内缘与所述槽沟共同形成弓丝槽。
所述工作翼和锁扣装置与所述基底一体成型， 所述一体成型为所述工作翼、 锁扣装置和 基底采用金属铸造、 金属粉末注射成型、 线切割、激光雕刻或激光切割方法制作为一体结构。
所述基底、 工作翼和锁扣装置的材料为镍钛形状记忆合金、 镍钛基形状记忆合金、 钛基 合金或不锈钢。
所述锁扣装置设置在所述工作翼之间和 /或外侧。
至少两个所述锁扣装置对称地设置在所述轴线的两侧组成一锁扣组， 所述锁扣组设置在 所述工作翼之间和 /或外侧。
一个所述锁扣组中的两个所述锁扣装置在所述纵臂的底部连接为一体， 两个所述锁扣装 置的纵臂和臂尖面向所述轴线的内缘形成中空部分， 所述中空部分形成开口向上的 C形。 所述锁扣装置的臂尖的顶部为向所述臂尖的末端收敛的圆弧形。
所述锁扣装置在所述轴线的两侧不对称设置。
所述锁扣装置均设置在所述轴线的一侧。
其他的所述锁扣装置在所述轴线的两侧不对称设置或均设置在所述轴线的一侧。
本实用新型的技术效果如下：
本实用新型的整体金属自锁托槽包括一基底， 以及设置在所述基底一面的两个工作翼和 一个或一个以上的锁扣装置， 所述工作翼为一双翼中部设置一槽沟的对称结构， 锁扣装置面 向所述轴线的内缘与槽沟共同形成弓丝槽， 所述工作翼和锁扣装置与所述基底一体成型。 与 压盖式自锁托槽相比， 本实用新型的整体金属自锁托槽通过锁扣装置与工作翼中间的槽沟共 同形成用于固定弓丝的弓丝槽， 当弓丝进入弓丝槽后， 锁扣装置能够迅速恢复原状， 而锁扣 装置向弓丝槽内延伸的臂尖将弓丝有效地卡抱于弓丝槽内， 啮合稳定， 充分发挥弓丝的矫治 力。 因而本实用新型无需在工作翼顶部另外加设锁定弓丝的装置， 有效降低了金属自锁托槽 的厚度， 使患者的佩戴感觉更加舒适。
由于本实用新型的金属自锁托槽的锁扣装置与托槽部分为一体成型， 没有压盖式自锁托 槽中常见的活动铰接结构， 因而几乎没有卫生死角， 易于清洁。 而且锁扣装置兼具稳定和弹 性佳的优点， 可以承受临床数次装卸弓丝而不变形， 保持良好的夹持和固位力。 锁扣装置关 闭后产生的弹性压力可在需要时作用于弓丝， 提供持续轻柔的正畸力。 附图说明
图 1是本实用新型的实施例 1的结构示意图
图 2是本实用新型的实施例 1的另一结构示意图
图 3是本实用新型的锁扣装置的结构示意图
图 4是本实用新型的实施例 2的结构示意图
图 5是本实用新型的实施例 3的结构示意图
图 6是本实用新型的实施例 4的结构示意图
图 7是本实用新型的实施例 5的结构示意图
图 8是本实用新型的实施例 6的结构示意图
图 9是本实用新型的实施例 6的另一结构示意图
图 10是本实用新型的实施例 7的结构示意图
图 11本实用新型的实施例 7的另一结构示意图
图 12是本实用新型的实施例 8的结构示意图 图 13是本实用新型的实施例 9的结构示意图
图 14本实用新型的实施例 9的另一结构示意图
具体实施方式
下面结合附图对本实用新型进行说明。
为了使本实用新型的目的、 技术方案及优点更加清楚明白， 以下结合附图及实施例， 对 本实用新型进行进一步详细说明。 此处所描述的具体实施例仅用以解释本实用新型， 并不用 于限定本实用新型。
实施例 1 :
如图 1、 图 2所示， 本实施例的自锁托槽包括基底 1、 两个工作翼 2、 2N个锁扣装置 3， 其中 N为自然数， 工作翼 2和锁扣装置 3可以与基底 1一体成型， 制作方法采用金属铸造、 金属粉末注射成型、 线切割等一体成型方法。 自锁托槽的整体为金属材料制成， 如镍钛基形 状记忆合金、 钛基合金、 不锈钢等金属材料。 其中基底 1为一矩形板状， 基底 1的正面为表 面 11， 背面为粘合面 12， 表面 11为圆滑平面， 粘合面 12上设置沟壑状凹槽 13， 有利于粘 接剂流入， 增强托槽粘接的固位力。 两个工作翼 2分别居于表面 11的近远中方向上， 工作翼 2包括与表面 11连接的底托 21， 以及底托 21顶部向下凹陷形成的用于安装矫治弓丝的槽沟 22， 槽沟 22两侧壁向外延伸形成外翻的翼片 23; 两工作翼 2的槽沟 22在同一轴线上。 槽沟 22的侧壁相互平行或近似平行， 并垂直或近似垂直于表面 11。 如图 4所示， 表面 11上有一 垂直于槽沟 22轴线的线状标记 5， 用于临床粘接定位， 本实施例中优选将线状标记 5设置在 基底 1的中间位置， 线状标记 5可为凹槽或者凸棱。
如图 3所示， 单个的锁扣装置 3为 "7 "形， 包括纵臂 31和臂尖 32， 纵臂 31—端与表 面 11连接， 另一端向槽沟 22所在的轴线方向水平延伸， 在末端形成臂尖 32。 锁扣装置 3从 表面 11上延伸，其面向槽沟 22轴线的内缘与两工作翼 2的槽沟 22共同形成一个容纳矫治弓 丝的长方形弓丝槽 4。 弓丝槽 4根据需要可以制作成可以最大容纳 0.018 X 0.025英寸〜 0.022 X 0.028英寸的弓丝的长方形空间。臂尖 32的顶部为向臂尖 32末端收敛的圆弧形， 当从外部 对弓丝施压后，弓丝很自然地从臂尖 32的末端顺利压入弓丝槽 4中。当弓丝进入弓丝槽 4后， 锁扣装置 3能够迅速恢复原状， 从而臂尖 32将弓丝有效地卡抱于弓丝槽 4内， 发挥矫治力。
如图 1、 图 2所示， 本实施例中的 2N个锁扣装置 3分成 N组， 每组的两个锁扣装置 3 对称地设置在槽沟 22轴线的两侧， N组锁扣装置 3沿轴线方向设置在两个工作翼 2之间。在 松弛状态下， 两个相对的纵臂 31平行或呈近似平行， 并垂直或近似垂直于表面 11， 两臂尖 32之间的缝隙形成弓丝槽 4的入口。从槽沟 22轴线的方向看去， 弓丝槽 4的入口为圆滑的 V 形， 从外部对弓丝施压后， 两个相对的臂尖 32很容易分开， 弓丝从扩大的弓丝槽 4的入口处 顺利压入弓丝槽 4中。一组中的两个锁扣装置 3可在纵臂 31的底部连接为一体， 两个锁扣装 置 3之间的中空部分形成近似缺口向上的 "C"形。 两个锁扣装置 3之间的中空部分形状与 槽沟 22的内缘轮廓一致， 中空部分与槽沟 22共同构成的弓丝槽 4既增强了对弓丝的控制和 卡抱能力， 而且在一定的力值范围内有效地防止弓丝从弓丝槽 4内自行弹出。 当弓丝进入弓 丝槽 4后力量过大时， 锁扣装置 3会在拉力的作用下向相反的方向分开， 弓丝从弓丝槽 4内 弹出， 从而保护牙齿不受过大矫治力的伤害， 并且避免了由于力量过大而导致自锁托槽从固 定位置脱落。
实施例 2:
如图 4所示， 在实施例 1的基础上， 本实施例的自锁托槽中将设置在两个工作翼 2之间 的锁扣装置 3除去，另外在沿槽沟 22轴线的方向的两个工作翼 2外侧的表面 1上分别设置一 组锁扣装置 3。 每组的两个锁扣装置 3对称地设置在槽沟 22轴线的两侧， 一组中的两个锁扣 装置 3可在纵臂 31的底部连接为一体，两个锁扣装置 3之间的中空部分形成近似缺口向上的 "C"形。 两个锁扣装置 3之间的中空部分形状与槽沟 22的内缘轮廓一致， 中空部分与槽沟 22共同构成的弓丝槽 4既增强了对弓丝的控制和卡抱能力， 而且在一定的力值范围内有效地 防止弓丝从弓丝槽 4内自行弹出。
实施例 3:
如图 5所示， 在实施例 1的基础上， 在沿槽沟 22轴线的方向的两个工作翼 2外侧的表面 1上分别增加一组锁扣装置 3。 每组的两个锁扣装置 3对称地设置在槽沟 22轴线的两侧， 一 组中的两个锁扣装置 3可在纵臂 31的底部连接为一体，两个锁扣装置 3之间的中空部分形成 近似缺口向上的 "C"形。 两个锁扣装置 3之间的中空部分形状与槽沟 22的内缘轮廓一致， 中空部分与槽沟 22共同构成的弓丝槽 4既增强了对弓丝的控制和卡抱能力，而且在一定的力 值范围内有效地防止弓丝从弓丝槽 4内自行弹出。
实施例 4:
如图 6所示， 本实施例的自锁托槽包括基底 1、 两个工作翼 2、 N个锁扣装置 3， 其中 N 为自然数， 工作翼 2和锁扣装置 3可以与基底 1一体成型。 所有的锁扣装置 3均设置在槽沟 22轴线的一侧， 臂尖 32向槽沟 22轴线另一侧方向延伸。 所有的锁扣装置 3面向槽沟 22轴 线的内缘均与槽沟 22的一侧内缘相一致，槽沟 22与锁扣装置 3面向槽沟 22轴线的内缘共同 构成用于安装弓丝的弓丝槽 4。
实施例 5:
如图 7所示， 在实施例 1的基础上， 本实施例的自锁托槽将两个工作翼 2之间沿槽沟 22 的轴线方向对称设置的锁扣装置 3改为不对称设置，臂尖 32向槽沟 22轴线另一侧方向延伸。 即在槽沟 22的轴线一侧的锁扣装置 3与另一侧的锁扣装置 3错开一个位置，使得两侧的锁扣 装置 3不再关于槽沟 22的轴线对称。工作翼 2和锁扣装置 3可以与基底 1一体成型。所有的 锁扣装置 3面向槽沟 22轴线的内缘均与槽沟 22的内缘轮廓一致，槽沟 22与锁扣装置 3面向 槽沟 22轴线的内缘共同构成用于安装弓丝的弓丝槽 4。
实施例 6:
如图 8、 图 9所示， 在实施例 2的基础上， 本实施例的自锁托槽中在沿槽沟 22轴线的方 向的两个工作翼 2外侧的表面 1上分别设置一个锁扣装置 3， 工作翼 2和锁扣装置 3可以与 基底 1一体成型。两个锁扣装置 3分别设置在槽沟 22的同侧或者对侧， 臂尖 32向槽沟 22轴 线另一侧方向延伸。所有的锁扣装置 3面向槽沟 22轴线的内缘均与槽沟 22的内缘轮廓一致， 槽沟 22与锁扣装置 3面向槽沟 22轴线的内缘共同构成用于安装弓丝的弓丝槽 4。
实施例 7:
如图 10、 图 11所示， 在实施例 6的基础上， 本实施例的自锁托槽中在沿槽沟 22轴线的 方向的两个工作翼 2外侧的表面 1上分别设置一个锁扣装置 3之外， 还在两个工作翼 2之间 设置一个锁扣装置 3， 所有的锁扣装置 3的臂尖 32向槽沟 22轴线另一侧方向延伸， 锁扣装 置 3分别设置在槽沟 22的同侧或者对侧。工作翼 2和锁扣装置 3可以与基底 1一体成型。所 有的锁扣装置 3面向槽沟 22轴线的内缘均与槽沟 22的内缘轮廓一致， 槽沟 22与锁扣装置 3 面向槽沟 22轴线的内缘共同构成用于安装弓丝的弓丝槽 4。
实施例 8:
如图 12所示， 在实施例 7的基础上， 本实施例的自锁托槽将分别设置在两个工作翼 2外 侧的两个锁扣装置 3替换成两组锁扣装置 3， 每组的两个锁扣装置 3对称地设置在槽沟 22轴 线的两侧，一组中的两个锁扣装置 3可在纵臂 31的底部连接为一体， 两个锁扣装置 3之间的 中空部分形成近似缺口向上的 "C"形。 两个锁扣装置 3之间的中空部分形状与槽沟 22的内 缘轮廓一致， 中空部分与槽沟 22共同构成的弓丝槽 4既增强了对弓丝的控制和卡抱能力， 而 且在一定的力值范围内有效地防止弓丝从弓丝槽 4内自行弹出。
实施例 9:
如图 13、 图 14所示， 在实施例 7的基础上， 本实施例的自锁托槽将设置在两个工作翼 2 之间的一个锁扣装置 3替换成一组锁扣装置 3， 每组的两个锁扣装置 3对称地设置在槽沟 22 轴线的两侧，一组中的两个锁扣装置 3可在纵臂 31的底部连接为一体， 两个锁扣装置 3之间 的中空部分形成近似缺口向上的 "C"形。 两个锁扣装置 3之间的中空部分形状与槽沟 22的 内缘轮廓一致， 中空部分与槽沟 22共同构成的弓丝槽 4既增强了对弓丝的控制和卡抱能力， 而且在一定的力值范围内有效地防止弓丝从弓丝槽 4内自行弹出。
应当指出， 以上所述具体实施方式可以使本领域的技术人员更全面地理解本实用新型创 造， 但不以任何方式限制本实用新型创造。 因此， 尽管本说明书参照附图和实施例对本实用 新型创造已进行了详细的说明， 但是， 本领域技术人员应当理解， 仍然可以对本实用新型创 造进行修改或者等同替换， 总之， 一切不脱离本实用新型创造的精神和范围的技术方案及其 改进， 其均应涵盖在本实用新型创造专利的保护范围当中。

Claims

权 利 要 求 书
1、 一种带有锁扣装置的整体金属自锁托槽， 其特征在于： 它包括一基底， 以及设置在所 述基底一面的一个或一个以上工作翼和一个或一个以上的锁扣装置， 所述工作翼为一双翼中 部设置一槽沟的对称结构， 所有所述工作翼的槽沟在一条轴线上； 所述锁扣装置包括一纵臂， 所述纵臂一端与所述基底连接， 另一端向所述轴线方向横向延伸形成臂尖； 所述纵臂和臂尖 面向所述轴线的内缘与所述槽沟共同形成弓丝槽。
2、 如权利要求 1所述的一种整体金属自锁托槽， 其特征在于： 所述工作翼和锁扣装置与 所述基底一体成型， 所述一体成型为所述工作翼、 锁扣装置和基底采用金属铸造、 金属粉末 注射成型、 线切割、 激光雕刻或激光切割方法制作为一体结构。
3、如权利要求 1所述的一种带有锁扣装置的整体金属自锁托槽，其特征在于：所述基底、 工作翼和锁扣装置的材料为镍钛形状记忆合金、 镍钛基形状记忆合金、 钛基合金或不锈钢。
4、 如权利要求 1所述的一种带有锁扣装置的整体金属自锁托槽， 其特征在于： 所述锁扣 装置设置在所述工作翼之间和 /或外侧。
5、如权利要求 1或 2或 3或 4所述的一种带有锁扣装置的整体金属自锁托槽， 其特征在 于： 至少两个所述锁扣装置对称地设置在所述轴线的两侧组成一锁扣组， 所述锁扣组设置在 所述工作翼之间和 /或外侧。
6、 如权利要求 5所述的一种整体金属自锁托槽， 其特征在于： 一个所述锁扣组中的两个 所述锁扣装置在所述纵臂的底部连接为一体， 两个所述锁扣装置的纵臂和臂尖面向所述轴线 的内缘形成中空部分， 所述中空部分形成开口向上的 C形。
7、 如权利要求 5所述的一种带有锁扣装置的整体金属自锁托槽， 其特征在于： 所述锁扣 装置的臂尖的顶部为向所述臂尖的末端收敛的圆弧形。
8、如权利要求 1或 2或 3或 4所述的一种带有锁扣装置的整体金属自锁托槽， 其特征在 于： 所述锁扣装置在所述轴线的两侧不对称设置。
9、如权利要求 1或 2或 3或 4所述的一种带有锁扣装置的整体金属自锁托槽， 其特征在 于： 所述锁扣装置均设置在所述轴线的一侧。
10、 如权利要求 5所述的一种带有锁扣装置的整体金属自锁托槽， 其特征在于： 其他的 所述锁扣装置在所述轴线的两侧不对称设置或均设置在所述轴线的一侧。
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CN201831972U (zh) 2011-05-18
US20120052459A1 (en) 2012-03-01

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