WO2023207601A1 - 正畸器具及正畸装置 - Google Patents

正畸器具及正畸装置 Download PDF

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Publication number
WO2023207601A1
WO2023207601A1 PCT/CN2023/087897 CN2023087897W WO2023207601A1 WO 2023207601 A1 WO2023207601 A1 WO 2023207601A1 CN 2023087897 W CN2023087897 W CN 2023087897W WO 2023207601 A1 WO2023207601 A1 WO 2023207601A1
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WO
WIPO (PCT)
Prior art keywords
stopper
groove
elastic
limiting
orthodontic appliance
Prior art date
Application number
PCT/CN2023/087897
Other languages
English (en)
French (fr)
Inventor
徐梓恩
吉利
余健文
钟庭进
Original Assignee
广州欧欧医疗科技有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州欧欧医疗科技有限责任公司 filed Critical 广州欧欧医疗科技有限责任公司
Publication of WO2023207601A1 publication Critical patent/WO2023207601A1/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
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A61C7/16—Brackets; Fixing brackets to teeth specially adapted to be cemented to teeth

Definitions

  • the present application relates to the technical field of medical devices, and in particular to an orthodontic appliance and an orthodontic device.
  • This application provides an orthodontic appliance and an orthodontic device.
  • the orthodontic appliance is reliably locked and can improve the reliability of fixed archwires. Applying orthodontic appliances to orthodontic devices can improve the success rate of correction.
  • an orthodontic appliance including a bearing member, a stopper, and a locking member.
  • the bearing member includes a limiting body and a fitting body that is spaced apart from the limiting body to form an archwire slot.
  • the stopper is slidably connected to the fitting body and is movable relative to the limiting body.
  • the stopper has a closed state for covering the archwire slot and an open state for opening the archwire slot.
  • the stopper is provided with a groove extending along its sliding direction.
  • the groove is provided with a locking position away from the limiting body, and an end of the groove located at the locking position is provided with a first side surface.
  • the locking piece is provided on the fitting body.
  • the locking piece includes an elastic part protruding from the fitting body.
  • the elastic part is inserted into the groove, and the groove is movable relative to the elastic part.
  • the elastic part includes a first matching surface disposed toward the first side.
  • the stopper When the orthodontic appliance is used, the stopper is slidingly connected to the matching body, and when moving relative to the limiting body, the elastic part is inserted into the recess. in the groove, and the groove can move relative to the elastic part to realize the switch of the stopper between the open state and the closed state.
  • the first mating surface When the stopper moves toward the limiting body, the first mating surface also approaches the first side.
  • the stopper moves and the elastic portion is in the locking position, the stopper is in a closed state, and the first mating surface and the first The distance between the side surfaces is A, and 0mm ⁇ A ⁇ 2.25mm will not affect the cooperation between the elastic part and the locking position, so that the elastic part and the locking position are locked together. In this way, the stopper can be reliably locked in the closed state, and the stopper can effectively prevent the archwire placed in the archwire slot from leaving the archwire slot, thereby improving the reliability of fixing the archwire.
  • the stopper and the elastic part are cut through a parallel plane parallel to the sliding mating surface of the stopper to form a cross-sectional plane.
  • any point on the first side along the sliding direction reaches the archwire groove.
  • the first distance from the center line is L1
  • the limiting body includes a first limiting surface facing the fitting body, and the stopper includes a second limiting surface facing the limiting body;
  • the blocking member When the blocking member is in the closed state, at least part of the second limiting surface abuts at least part of the first limiting surface; and/or, when the blocking member is in the closed state, the first limiting surface is notch-shaped, and the second limiting surface is in the shape of a notch. At least part of the limiting surface extends into the first limiting surface;
  • the stopper and the elastic part are cut through a parallel plane parallel to the sliding mating surface of the stopper to form a cross-sectional plane.
  • the second distance from any point on the first side to the second limiting surface along the sliding direction is L11
  • the distance from the point where the sliding direction line formed by the second distance intersects with the first mating surface to the first limiting surface along the sliding direction is L21
  • A L11-L21.
  • the fitting body is provided with a convex portion, and the convex portion includes a second matching surface.
  • the second mating surface is provided on a side of the convex portion away from the archwire groove.
  • the elastic portion protrudes from the convex portion; the stopper is opposite to the protruding portion.
  • the convex part is slidable, the stopper is provided with an accommodation space for accommodating the convex part, the groove is provided at the bottom of the accommodation space, and the accommodation space includes a second side provided toward the second mating surface; when the barrier is in a closed state, the second mating surface
  • the distance between the surface and the second side is B, 0mm ⁇ B ⁇ 2.25mm.
  • the stopper and the elastic portion are cut through a parallel plane parallel to the sliding mating surface of the stopper to form a cross-sectional plane.
  • any point on the second side along the sliding direction reaches the archwire groove.
  • the convex portion is in the shape of a strip and extends along the sliding direction.
  • the convex portion gradually narrows from its top to the bottom, and the accommodating space is adapted to the convex portion and is slidably connected.
  • first side and the second side are straight planes, inclined planes or arcuate surfaces; the first side and the second side have a step transition, or the first side and the second side have a smooth or smooth transition.
  • the groove is also provided with an extrusion position
  • the elastic part includes an elastic column, which deflects in a substantially radial direction relative to its central axis through the extrusion position and into the locking position; or, the groove is further provided with an extrusion position.
  • the elastic part includes two elastic columns. When the two elastic columns pass through the extrusion position, the two elastic columns are squeezed against the side walls of the groove respectively to reduce the gap between the two elastic columns.
  • an orthodontic device including an archwire and the orthodontic appliance in any of the above embodiments.
  • the orthodontic appliance When the orthodontic device is used for orthodontic treatment, the orthodontic appliance is fixed on the teeth through the bearing member, and one orthodontic appliance is fixed on at least two teeth respectively as needed. Then move the stopper away from the limiting body so that the stopper is in an open state and the archwire can be placed into the archwire slot. After the installation of the archwire is completed, when the stopper moves toward the limiting body, the first mating surface also approaches the first side. When the stopper moves to the closed state, the gap between the first mating surface and the first side surface The spacing is A, and 0mm ⁇ A ⁇ 2.25mm will not affect the cooperation between the elastic part and the locking position, so that the elastic part and the locking position are locked together. The stopper can effectively prevent the archwire placed in the archwire slot from breaking away from the archwire. grooves to improve the reliability of the fixed archwire, thereby improving the success rate of correction.
  • Figure 1 is an exploded schematic diagram of the structure of an orthodontic appliance shown in an embodiment.
  • Figure 2 is an assembly diagram of the orthodontic appliance shown in Figure 1.
  • FIG. 3 is a schematic diagram of the cooperation between the locking piece and the locking position shown in FIG. 1 .
  • FIG. 4 is a schematic view of the locking member shown in FIG. 3 leaving the locking position.
  • Figure 5 is a schematic diagram of the orthodontic appliance shown in Figure 2 being installed on the teeth.
  • Figure 6 is a schematic longitudinal cross-sectional view of the orthodontic appliance shown in Figure 5 in the sliding direction.
  • FIG. 7 is a schematic I-I cross-sectional view of the orthodontic appliance shown in FIG. 6 along a plane parallel to the sliding mating surface of the stopper.
  • Figure 8 is a schematic II-II cross-sectional view of the orthodontic appliance shown in Figure 6 along a plane parallel to the sliding mating surface of the stopper.
  • Figure 9 is a schematic diagram of the application of the orthodontic device shown in an embodiment.
  • Orthodontic appliance 100. Bearing member; 110. Limiting body; 111. First limiting surface; 120. Archwire slot; 121. Center line; 130, fitting body; 140, convex portion; 141, non-circular hole; 142, second mating surface; 150, opening groove; 200, stopper; 201, sliding mating surface; 210, groove; 211. Locking position; 202. First side; 212. Sliding position; 213. Squeezing position; 220. Accommodation space; 221. Second side; 230. Second limiting surface; 300. Locking piece; 310. Elastic part; 311 , the first matching surface; 312, elastic column; 20, teeth; 21, intersecting surface; 22, gingival surface; 23, gingival and jaw direction; 30, arch wire.
  • the surface of the tooth can be roughly divided into six faces.
  • the surface of the tooth that occupies the mandibular teeth is the occlusal surface; the surface of the tooth that is connected to the attached gum tissue is the gingival surface; the occlusal surface and the gingival surface are opposite, and the direction formed by the occlusal surface and the gingival surface is also called the gingival and jaw direction.
  • the surface of the tooth facing the lip is the labial side; the surface of the tooth facing the tongue is the lingual side; the labial side and the lingual side are opposite, and the direction formed by the labial side and the lingual side is also called the labiolingual direction.
  • the two surfaces of the tooth that are in contact with the adjacent teeth are the mesial surface and the distal surface.
  • the difference lies in the distance from the middle of the tooth.
  • the direction formed by the two is also called the mesiodistal direction, or the mesiodistal direction.
  • the present application provides an orthodontic appliance that is reliably locked and can improve the reliability of fixed archwires. Applying it to orthodontic devices can improve the success rate of correction.
  • an orthodontic appliance 10 including a bearing member 100 , a stopper 200 and a locking member 300 .
  • the bearing member 100 includes a limiting body 110 and a fitting body 130 spaced apart from the limiting body 110 to form an archwire slot 120 .
  • the stopper 200 is slidably connected to the fitting body 130 and is movable relative to the limiting body 110.
  • the stopper 200 has a closed state for covering the archwire slot 120 and an open state for opening the archwire slot 120.
  • the stopper 200 is in contact with the fitting body.
  • the surface corresponding to 130 is the sliding mating surface 201.
  • the stopper 200 is provided with a groove 210 extending along its sliding direction.
  • the groove 210 is provided on the sliding mating surface 201.
  • the groove 210 is provided with a locking position 211 away from the limiting body 110 , and an end of the groove 210 located at the locking position 211 is provided with a first side 202 .
  • the locking piece 300 is disposed on the fitting body 130.
  • the locking piece 300 includes an elastic part 310 protruding from the fitting body 130.
  • the elastic part 310 is inserted into the groove 210, and the groove 210 is movable relative to the elastic part 310.
  • the elastic part 310 includes a direction facing
  • the first side 202 is provided with a first mating surface 311 .
  • the stopper 200 When the orthodontic appliance 10 is used, the stopper 200 is slidably connected to the matching body 130 and moves relative to the limiting body 110 When the elastic part 310 is inserted into the groove 210, the groove 210 can move relative to the elastic part 310, so that the stopper 200 switches between the open state and the closed state. When the stopper 200 closes the arch wire slot 120, the first side 202 is also approaching the first mating surface 311.
  • the stopper 200 can effectively prevent the archwire 30 placed in the archwire slot 120 from escaping from the archwire slot 120 , thereby improving the reliability of fixing the archwire 30 .
  • the stopper 200 can be locked on the carrier 100 without using other fixing structures for fixation.
  • the locking part 300 and the groove 210 are disposed inside the stopper 200 and the bearing part 100, so that food residues are not easily accumulated, and it is easy to keep the oral cavity clean and is liked by people, which is conducive to improving the orthodontic function of the present application. Appliance 10 competitiveness.
  • the "limiting body 110" can be "a part of the bearing member 100", that is, the “limiting body 110" and “other parts of the bearing member 100, such as the fitting body 130" are integrally formed; it can also be formed with “Other parts of the bearing member 100, such as the fitting body 130" can be separated into an independent component, that is, the "limiting body 110” can be manufactured independently, and then combined with "other parts of the bearing member 100, such as the fitting body 130" to form a separate component. overall.
  • a certain body and “a certain part” can be part of the corresponding “component”, that is, “a certain body” and “a certain part” are integrally formed and manufactured with the “other parts of the component”; they can also be integrated with “other parts of the component”
  • Part is an independent component that can be separated, that is, “a certain body” or “a certain part” can be manufactured independently, and then combined with “other parts of the component” to form a whole.
  • the expressions "a certain body” and “a certain part” mentioned above in this application are only one of the embodiments. They are for the convenience of reading and are not intended to limit the scope of protection of this application. As long as the above features are included and the functions are the same, it should be understood as The equivalent technical solution of this application.
  • the sliding connection between the bearing member 100 and the fitting body 130 can be implemented in a variety of ways, including but not limited to slide rail structures.
  • the fitting body 130 is provided with a protruding portion 140 , and the protruding portion 140 includes a second mating surface 142 , and the second mating surface 142 is disposed on the protruding portion 140 away from the archwire groove 120 .
  • the elastic part 310 protrudes from the convex part 140; the stopper 200 is slidable relative to the convex part 140.
  • the stopper 200 is provided with an accommodation space 220 for accommodating the convex part 140.
  • the groove 210 is provided at the bottom of the accommodation space 220.
  • the space 220 includes a second side 221 disposed toward the second mating surface 142 .
  • the convex portion 140 is disposed in the accommodating space 220 and can surround the convex portion 140, which can reduce food residues from entering the orthodontic appliance 10, making it less likely to breed plaque, improving oral hygiene, and improving the wearer's comfort. Correction experience.
  • the distance between the second mating surface 142 and the second side surface 221 is B, and 0mm ⁇ B ⁇ 2.25mm.
  • the second mating surface 142 and the second side surface 221 The distance between them is B, and 0mm ⁇ B ⁇ 2.25mm, so that the cooperation between the convex part 140 and the accommodation space 220 will not interfere with the locking cooperation between the elastic part 310 and the locking position 211.
  • the convex portion 140 is in a strip shape and extends along the sliding direction.
  • the opposite sides of the convex portion 140 gradually narrow from the top to the bottom to form a sliding track of the stopper 200 .
  • the stopper 200 is in sliding fit with the protrusion 140 and can restrict the stopper 200 from being separated from the carrier 100 in the thickness direction of the protrusion 140 .
  • the bottom edges of the two opposite sides of the convex portion 140 define the sliding direction in this embodiment.
  • the fitting body 130 is provided with a slide rail, and the protruding portion 140 does not necessarily slide against the stopper 200 .
  • the sliding direction in this embodiment is defined by the slide rail.
  • first side 202 and the second side 221 are straight planes, inclined planes or arc surfaces; the first side 202 and the second side 221 have a step transition, or the first side 202 and the second side 221 are rounded or smooth. transition.
  • At least part of the outer surface of the limiting body 110 is in the shape of a smoothly curved surface.
  • At least part of the outer surface of the stopper 200 is in the shape of a smoothly curved surface. In this way, after the stopper 200 and the carrier 100 are matched and connected, the outer surface of the stopper 200 matches the outer surface of the carrier 100 to form a smooth curved surface, which can reduce the wearer's foreign body sensation and improve the wearing comfort of the orthodontic appliance 10 .
  • the locking fit between the locking position 211 and the elastic part 310 can be implemented in various ways, including but not limited to using the deformation of the elastic part 310 to limit the movement of the stopper 200 in the direction of opening the archwire slot 120. Can.
  • the elastic part 310 can be implemented in a variety of ways, including elastic pieces or at least one elastic column 312 and so on.
  • the cross section of the elastic column 312 may be circular, square or C-shaped, etc.
  • the first mating surface provided with the elastic part facing the first side may be an arc surface, a flat surface or a composite surface, and the composite surface may be The folded surface formed by a flat surface and a flat surface can also be a folded surface formed by a curved surface and a flat surface, etc.
  • the first mating surface is the side of the elastic pillar facing the first side.
  • the first mating surface may be the side of any elastic column facing the first side, or it may be the side formed by two elastic columns facing the first side.
  • the groove 210 further includes a sliding position 212 and a pressing position 213 disposed between the sliding position 212 and the locking position 211 .
  • the elastic part 310 includes two spaced apart positions. When the elastic part 310 is in the sliding position 212, the stopper 200 is in an open state. When the elastic part 310 passes through the extrusion position 213 from the locking position 211, the two elastic columns 312 squeeze against the side walls of the groove 210 respectively. Press to close the gap between the two elastic columns 312. In this way, the width of the elastic portion 310 is adjusted by contracting or expanding the elastic pillars 312 .
  • the elastic column 312 shrinks to pass through the pressing position 213, so that the elastic part 310 is movably disposed in the sliding position 212; and the elastic part 310 moves from the sliding position 212 to Lock bit 211 During the process, the elastic column 312 is contracted to pass through the pressing position 213, and when opened in the locking position 211, the width of the elastic part 310 becomes larger and is locked in the locking position 211.
  • the two elastic columns 312 are squeeze-fitted with the side walls of the groove 210, so that the elastic part 310 does not move easily, and thus the stopper 200 does not move relative to the load-bearing position.
  • the movement of the member 100 is beneficial to further ensuring the reliability of closing of the stopper 200.
  • the elastic part 310 also includes an elastic column 312 , the elastic column 312 deflects in a substantially radial direction relative to its central axis, and enters the locking position 211 through the extrusion position 213 .
  • the limiting body 110 includes a first limiting surface 111 facing the fitting body 130
  • the stopper 200 includes a first limiting surface 111 facing the limiting body 130 .
  • the second limiting surface 230 of 110 when the blocking member 200 is in the closed state, at least part of the second limiting surface 230 abuts at least part of the first limiting surface 111; and/or, when the blocking member 200 is in the closed state , the first limiting surface 111 is notch-shaped, and at least part of the second limiting surface 230 extends into the first limiting surface 111 .
  • the second limiting surface 230 abuts at least part of the first limiting surface 111 , or at least part of the second limiting surface 230 extends into the first limiting surface 111 , so that the stopper 200 is closed. Reliable, the inlet and outlet of the arch wire slot 120 can be reliably closed, and the arch wire 30 can be further prevented from being separated from the arch wire slot 120 .
  • the stopper 200 and the elastic portion 310 are cut with a parallel plane parallel to the sliding mating surface 201 of the stopper 200 to form a cross section.
  • the second distance from any point of the first side surface 202 to the second limiting surface 230 along the sliding direction is L11, and the point where the sliding direction line formed by the second distance intersects with the first mating surface 311 reaches the first matching surface 311 along the sliding direction.
  • the distance L11 from the first side to the second limiting surface can be added.
  • the distance from the second limiting surface 230 to the first mating surface is determined as L21 based on the size of A, which is beneficial to reducing manufacturing difficulty.
  • L11 and L21 have the above relationship, it falls within the protection scope of this application.
  • the distance between the first mating surface 311 and the first side 202 is greater than or equal to 0.01 mm with a certain tolerance space, which can ensure reliable locking fit between the elastic part 310 and the locking position 211 .
  • the gap between the first mating surface 311 and the first side surface 202 is less than or equal to 2.25mm, so that the overall size of the orthodontic appliance will not be too large, and the orthodontic appliance will not be bitten due to the occlusal movement; at the same time, the foreign body sensation will be avoided. Too strong, improve comfort.
  • the gap between the first mating surface 311 and the first side surface 202 is set to a reasonable range of less than or equal to 2.25 mm.
  • 0.02mm ⁇ A ⁇ 0.5mm 0.02mm ⁇ A ⁇ 0.5mm.
  • the distance between the first mating surface 311 and the first side 202 is greater than or equal to 0.02 mm with a certain tolerance space, which can ensure reliable locking fit between the elastic portion 310 and the locking position 211 .
  • the distance between the first mating surface 311 and the first side 202 is less than or equal to 0.5mm, which can reduce the accumulation of food residues, and can reduce the overall size of the orthodontic appliance 10 and avoid bite movements while ensuring the strength of the stopper 200.
  • the wearing comfort is improved.
  • 0.05mm ⁇ A ⁇ 0.2mm In some embodiments, 0.05mm ⁇ A ⁇ 0.2mm.
  • the distance between the first mating surface 311 and the first side 202 is greater than or equal to 0.05mm with a certain tolerance space, which can ensure reliable locking fit between the elastic part 310 and the locking position 211, and Easy to manufacture and assemble.
  • the distance between the first mating surface 311 and the first side surface 202 is less than or equal to 0.2 mm, which can further reduce the accumulation of food residues and further reduce the overall size of the orthodontic appliance 10 while ensuring the strength of the stopper 200. Improve wearing comfort.
  • A 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6 mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.25mm At least one of the others.
  • an archwire 30 with a small cross-section is usually used for rough correction first. After the rough correction is completed, an archwire 30 with a large cross-section is used for fine correction. That is, during the process of straightening the teeth 20 , after the orthodontic appliance 10 has been used for a period of time, the stopper 200 needs to be opened to replace the archwire 30 again, in order to ensure that the stopper 200 can still be locked reliably after it is closed again.
  • the stopper 200 and the elastic portion 310 are cut along a parallel plane parallel to the sliding mating surface 201 of the stopper 200 to form a cross-section.
  • the first distance from any point on the first side 202 to the center line 121 of the archwire groove 120 along the sliding direction is L1.
  • the sliding direction line formed by the first distance intersects with the first mating surface 311 along the sliding direction.
  • the distance L2 from the centerline 121 of the archwire slot 120 to the first mating surface 311 can be added.
  • the distance from the center line 121 of the archwire slot 120 to the first side 202 is determined as L1 based on the size of A, which reduces the design difficulty.
  • L1 and L2 have the above relationship, it falls within the protection scope of this application.
  • 0.01mm ⁇ B ⁇ 2.25mm 0.01mm ⁇ B ⁇ 2.25mm. In this way, the distance between the second mating surface 142 and the second side surface 221 is greater than or equal to 0.01 mm with a certain tolerance space, which can ensure that the locking fit between the elastic part 310 and the locking position 211 will not be interfered with.
  • 0.02mm ⁇ B ⁇ 0.5mm 0.02mm ⁇ B ⁇ 0.5mm.
  • the distance between the second mating surface 142 and the second side 221 is greater than or equal to 0.02 mm with a certain tolerance space to ensure that the locking fit between the elastic part 310 and the locking position 211 will not be interfered with.
  • the distance between the second mating surface 142 and the second side 221 is less than or equal to 0.5 mm, which can reduce the accumulation of food residues, reduce the overall size of the orthodontic appliance 10 and avoid bite movements while ensuring the strength of the stopper 200
  • the wearing comfort is improved.
  • the dimensions of the protruding portion 140 and the receiving space 220 are reasonable to ensure that the stopper 200 has sufficient strength.
  • 0.05mm ⁇ B ⁇ 0.2mm In some embodiments, 0.05mm ⁇ B ⁇ 0.2mm.
  • the distance between the second mating surface 142 and the second side 221 is greater than or equal to 0.05mm with a certain tolerance space, which can ensure that the locking fit between the elastic part 310 and the locking position 211 will not be interfered with. , and the difficulty of manufacturing and assembly is low.
  • the distance between the second mating surface 142 and the second side surface 221 is less than or equal to 0.2 mm, which can further reduce the accumulation of food residues and further reduce the overall size of the orthodontic appliance 10 while ensuring the strength of the stopper 200. Improve wearing comfort.
  • B 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, At least one of 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.25mm, etc.
  • the stopper 200 and the elastic portion 310 are cut along a parallel plane parallel to the sliding mating surface 201 of the stopper 200 to form a cross-section.
  • the third distance from any point on the second side 221 to the center line 121 of the archwire slot 120 along the sliding direction is L3.
  • the sliding direction line formed by the third distance intersects with the second mating surface 142 along the sliding direction.
  • the size of B can be determined based on the centerline 121 of the archwire slot 120 to the second mating surface 142.
  • the distance L4 is added to the size of B to determine the distance from the center line 121 of the archwire slot 120 to the second side 221 as L3, which reduces the design difficulty.
  • L3 and L4 have the above relationship, it falls within the protection scope of this application.
  • a ⁇ 0.5mm, and B ⁇ 0.5mm In some embodiments, A ⁇ 0.5mm, and B ⁇ 0.5mm. In this way, when it is necessary to open the stopper 200 to replace the archwire 30 again, B ⁇ 0.5 mm, so that the convex part 140 will not interfere with the cooperation between the elastic part 310 and the locking bit 211; and A ⁇ 0.5 mm, so that the stopper 200 can be closed again. , can still be locked reliably.
  • the protruding portion 140 is provided with a non-circular hole 141
  • the locking member 300 is adapted to and tightly matched with the non-circular hole 141 .
  • circular holes may also be provided on the protruding portion 140 .
  • the radial cross section of the locking member may also be a non-circular structure such as a polygon or an ellipse.
  • the components included in the "appliance” and “system” of this application can also be flexibly combined, that is, modular production can be carried out according to the actual situation, and modular assembly can be carried out as an independent module; they can also be assembled separately and used in this device. form a module.
  • the division of the above-mentioned components in this application is only one of the embodiments. It is for the convenience of reading and is not intended to limit the scope of protection of this application. As long as the above-mentioned components are included and have the same function, it should be understood that it is an equivalent technical solution of this application.
  • an orthodontic device including an archwire 30 and the orthodontic appliance 10 in any of the above embodiments.
  • the wire 30 is disposed in the archwire slots 120 of at least two orthodontic appliances 10 .
  • the orthodontic appliance 10 When the orthodontic device is used to correct teeth 20 , the orthodontic appliance 10 is fixed on the teeth 20 through the carrier 100 , and one orthodontic appliance 10 is fixed on at least two teeth 20 as needed. Then move in the direction away from the limiting body 110 Move the stopper 200 so that the stopper 200 is in an open state, and the archwire 30 can be placed into the archwire slot 120 . After the installation of the archwire 30 is completed, when the stopper 200 moves toward the limiting body 110, the first mating surface 311 also approaches the first side 202.
  • the stopper 200 When the stopper 200 moves to the closed state, the first mating surface 311 The distance between the first side 202 and the first side 202 is A, and 0mm ⁇ A ⁇ 2.25mm will not affect the cooperation between the elastic part 310 and the locking position 211, so that the elastic part 310 and the locking position 211 can lock and cooperate.
  • the stopper 200 can effectively Preventing the archwire 30 placed in the archwire slot 120 from escaping from the archwire slot 120 can improve the reliability of fixing the archwire 30 and thereby improve the success rate of correction.
  • the carrier is secured to the tooth with an adhesive. In this way, the orthodontic appliance will not damage the teeth during the process of being fixed on the teeth, and it is easy to install.
  • first”, “second”, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined by “first,” “second,” etc. may explicitly or implicitly include at least one of these features. In the description of this application, “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • an element when referred to as being “fixed to”, “disposed on”, “anchored to” or “mounted on” another element, it can be directly on the other element or intervening elements may also be present.
  • a component When a component is recognized To "connect” another component, it may be directly connected to another component or there may also be an intermediate component present.
  • the two when one component is considered to be “fixedly connected” to another component, the two can be fixed by a detachable connection, or they can be fixed by a non-detachable connection, such as socketing, snapping, one-piece fixation, welding, etc. It can be implemented in traditional technology, so I won’t go into details here.

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Abstract

本实用新型公开了一种正畸器具及正畸装置。该正畸器具包括承载件、挡件以及锁定件。承载件包括限位体以及与限位体间隔设置形成弓丝槽的配合体。挡件与配合体滑动连接，并相对于限位体可移动，挡件具有盖住弓丝槽的关闭状态和打开弓丝槽的打开状态，挡件设有沿其滑动方向延伸的凹槽，凹槽设有远离限位体的锁定位，凹槽上位于锁定位的一端设有第一侧面。锁定件设置于配合体，锁定件包括凸出于配合体的弹性部，弹性部插入凹槽中，且凹槽可相对于弹性部移动，弹性部包括朝向第一侧面设置的第一配合面。该正畸器具锁定可靠，能够提高固定弓丝的可靠性，应用于正畸装置中，能够提高矫正成功率。

Description

正畸器具及正畸装置 技术领域
本申请涉及医疗器械技术领域，特别是涉及一种正畸器具及正畸装置。
背景技术
目前随着人们生活水平的提高，人们对获得和维持正确的咬合功能、提高颜面美观度和改善口腔卫生的需求越来越强烈。故用于校正牙齿的正畸器具的发展也越来越好，但竞争也越来越激烈。部分正畸器具将锁定结构设置于内部，不容易堆积食物残渣，易于保持口腔清洁而受到人们的喜欢，也是正畸器具未来发展的趋势。
在相关技术中，这类正畸器具由于锁定结构设置于内部，操作者难以从外部判断正畸器具是否锁定可靠。如锁定不可靠，则不利于提高正畸器具固定弓丝的可靠性。
实用新型内容
本申请提供一种正畸器具及正畸装置。该正畸器具锁定可靠，能够提高固定弓丝的可靠性。将正畸器具应用于正畸装置中，能够提高矫正成功率。
其技术方案如下：
根据本申请实施例的第一方面，提供一种正畸器具，包括承载件、挡件以及锁定件。承载件包括限位体以及与限位体间隔设置形成弓丝槽的配合体。挡件与配合体滑动连接，并相对于限位体可移动，挡件具有盖住弓丝槽的关闭状态和打开弓丝槽的打开状态，挡件设有沿其滑动方向延伸的凹槽，凹槽设有远离限位体的锁定位，凹槽上位于锁定位的一端设有第一侧面。锁定件设置于配合体，锁定件包括凸出于配合体的弹性部，弹性部插入凹槽中，且凹槽可相对于弹性部移动，弹性部包括朝向第一侧面设置的第一配合面。当弹性部位于锁定位时，挡件处于关闭状态，第一配合面与第一侧面之间的间距为A，且0mm＜A≤2.25mm。
本申请的实施例提供的技术方案可以包括以下有益效果：
该正畸器具使用时，挡件与配合体滑动连接，并相对于限位体移动时，弹性部插入凹 槽中，且凹槽可相对于弹性部移动，以实现挡件在打开状态与关闭状态之间进行切换。挡件向靠近限位体方向移动过程中，第一配合面也在向第一侧面靠近，当挡件移动并使得弹性部位于锁定位时，挡件处于关闭状态，第一配合面与第一侧面之间的间距为A，而0mm＜A≤2.25mm，不会影响弹性部与锁定位的配合，使得弹性部与锁定位锁定配合。如此，使得挡件在关闭状态能够被可靠地锁定，进而利用挡件可以有效阻止放置于弓丝槽内的弓丝脱离弓丝槽，能够提高固定弓丝的可靠性。
下面进一步对技术方案进行说明：
在其中一个实施例中，0.01mm≤A≤2.25mm；或者，0.02mm≤A≤2.2mm；或者，0.02mm≤A≤2.1mm；或者，0.02mm≤A≤2mm；或者，0.02mm≤A≤1.9mm；或者，0.02mm≤A≤1.8mm；或者，0.02mm≤A≤1.7mm；或者，0.02mm≤A≤1.6mm；或者，0.02mm≤A≤1.5mm；或者，0.02mm≤A≤1.4mm；或者，0.02mm≤A≤1.3mm；或者，0.02mm≤A≤1.2mm；或者，0.02mm≤A≤1.1mm；或者，0.02mm≤A≤1.0mm；或者，0.02mm≤A≤0.5mm；或者，0.05mm≤A≤0.2mm；或者，0.06mm≤A≤0.21mm。
在其中一个实施例中，平行于挡件的滑动配合面的平行面剖切挡件与弹性部以形成剖切面，在剖切面上，第一侧面的任一一点沿滑动方向至弓丝槽的中心线的第一距离为L1，第一距离形成的滑动方向线与第一配合面相交的点沿滑动方向至弓丝槽的中心线的距离为L2，A＝L1-L2。
在其中一个实施例中，限位体包括朝向配合体的第一限位面，挡件包括朝向限位体的第二限位面；
挡件处于关闭状态时，第二限位面的至少部分与第一限位面的至少部分相抵接；和/或，挡件处于关闭状态时，第一限位面呈凹口状，第二限位面的至少部分伸入第一限位面内；
平行于挡件的滑动配合面的平行面剖切挡件与弹性部以形成剖切面，在剖切面上，第一侧面的任一一点沿滑动方向至第二限位面的第二距离为L11，第二距离形成的滑动方向线与第一配合面相交的点沿滑动方向至第一限位面的距离为L21，A＝L11-L21。
在其中一个实施例中，配合体设有凸部，凸部包括第二配合面，第二配合面设置于凸部的远离弓丝槽的一侧，弹性部凸出凸部设置；挡件相对于凸部可滑动，挡件设有容纳凸部的容纳空间，凹槽设置于容纳空间的底部，容纳空间包括朝向第二配合面设置的第二侧面；挡件处于关闭状态时，第二配合面与第二侧面之间的间距为B，0mm＜B≤2.25mm。
在其中一个实施例中，0.01mm≤B≤2.25mm；或者，0.02mm≤B≤2.2mm；或者，0.02mm ≤B≤2.1mm；或者，0.02mm≤B≤2mm；或者，0.02mm≤B≤1.9mm；或者，0.02mm≤B≤1.8mm；或者，0.02mm≤B≤1.7mm；或者，0.02mm≤B≤1.6mm；或者，0.02mm≤B≤1.5mm；或者，0.02mm≤B≤1.4mm；或者，0.02mm≤B≤1.3mm；或者，0.02mm≤B≤1.2mm；或者，0.02mm≤B≤1.1mm；或者，0.02mm≤B≤1.0mm；或者，0.02mm≤B≤0.5mm；或者，0.05mm≤B≤0.2mm；或者，0.06mm≤B≤0.21mm。
在其中一个实施例中，平行于挡件的滑动配合面的平行面剖切挡件与弹性部以形成剖切面，在剖切面上，第二侧面的任一一点沿滑动方向至弓丝槽的中心线的第三距离为L3，第三距离形成的滑动方向线与第二配合面相交的点沿滑动方向至弓丝槽的中心线的距离为L4，B＝L3-L4。
在其中一个实施例中，凸部呈条形状，并沿滑动方向延伸，凸部由其顶部至底部逐渐收窄，容纳空间与凸部相适配并滑动连接。
在其中一个实施例中，第一侧面和第二侧面为直平面、斜平面或弧面；第一侧面和第二侧面阶梯过渡，或者，第一侧面和第二侧面圆滑或平滑过渡。
在其中一个实施例中，凹槽还设有挤压位，弹性部包括一个弹性柱，弹性柱相对于其中心轴以大致径向方向挠曲通过挤压位进入锁定位；或者，凹槽还设有挤压位，弹性部包括两个弹性柱，两个弹性柱经过挤压位时，两个弹性柱分别与凹槽的侧壁相挤压，以缩小两个弹性柱之间的间隙。
根据本申请实施例的第二方面，还提供了一种正畸装置，包括弓丝和上述任一实施例中的正畸器具，正畸器具至少为两个，弓丝设置于至少两个正畸器具的弓丝槽内。
本申请的实施例提供的技术方案可以包括以下有益效果：
该正畸装置应用于牙齿矫正时，正畸器具通过承载件固定在牙齿上，并根据需要在至少两牙齿上分别固定一个正畸器具。然后向远离限位体方向移动挡件，使得挡件处于打开状态，弓丝可以放入弓丝槽中。完成弓丝安装后，挡件向靠近限位体方向移动过程中，第一配合面也在向第一侧面靠近，当挡件移动至关闭状态时，第一配合面与第一侧面之间的间距为A，而0mm＜A≤2.25mm，不会影响弹性部与锁定位的配合，使得弹性部与锁定位锁定配合，利用挡件可以有效阻止放置于弓丝槽内的弓丝脱离弓丝槽，提高固定弓丝的可靠性，进而能够提高矫正成功率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图说明
附图说明构成本申请的一部分的附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一实施例中所示的正畸器具的结构爆炸示意图。
图2为图1所示的正畸器具的装配示意图。
图3为图1所示的锁定件与锁定位的配合示意图。
图4为图3所示的锁定件离开锁定位的配合示意图。
图5为图2所示的正畸器具安装于牙齿上的示意图。
图6为图5所示的正畸器具在滑动方向上的纵向剖视示意图。
图7为图6所示的正畸器具沿挡件的滑动配合面的平行面的I-I剖视示意图。
图8为图6所示的正畸器具沿挡件的滑动配合面的平行面的Ⅱ-Ⅱ剖视示意图。
图9为一实施例中所示的正畸装置的应用示意图。
附图标记说明：
10、正畸器具；100、承载件；110、限位体；111、第一限位面；120、弓丝槽；121、
中心线；130、配合体；140、凸部；141、非圆形孔；142、第二配合面；150、开启槽；200、挡件；201、滑动配合面；210、凹槽；211、锁定位；202、第一侧面；212、滑动位；213、挤压位；220、容纳空间；221、第二侧面；230、第二限位面；300、锁定件；310、弹性部；311、第一配合面；312、弹性柱；20、牙齿；21、交合面；22、齿龈面；23、龈颌方向；30、弓丝。
具体实施方式
为使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施方式，对本申请进行进一步的详细说明。应当理解的是，此处所描述的具体实施方式仅用以解释本申请，并不限定本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技 术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。
为方便理解，下面先对本申请实施例中所涉及的技术术语进行解释和描述。
以上颌的某颗牙齿为例，牙齿的表面可以大致分为六个面。与下颌牙齿咬合的该牙齿的面为咬合面；与其附属的牙龈组织连接的该牙齿的面为齿龈面；咬合面和齿龈面相对，咬合面与齿龈面形成的方向也叫做龈颌方向。朝向唇部的该牙齿的面为唇侧面；朝向舌部的该牙齿的面为舌侧面；唇侧面和舌侧面相对，唇侧面和舌侧面形成的方向也叫做唇舌方向。与相邻牙齿接触的该牙齿的两个面，分别为近中面和远中面，其区别在于与牙齿中部的距离远近，两者形成的方向也叫做近远中方向，或近中远方向。
目前随着人们生活水平的提高，人们对获得和维持正确的咬合功能、提高颜面美观度和改善口腔卫生的需求越来越强烈。故用于校正牙齿的正畸器具(也叫正畸托槽)的发展也越来越好，但竞争也越来越激烈。部分正畸器具锁定结构设置于内部将不容易堆积食物残渣，易于保持口腔清洁而受到人们的喜欢，也是正畸器具未来发展的趋势。
在相关技术中，这类正畸器具由于锁定结构设置于内部，操作者难以从外部判断正畸器具是否锁定可靠。如果正畸器具的挡件关闭不到位，导致盖板容易打开无法限制弓丝,弹性柱持续变形状态，容易使弹性柱失效等风险。
基于此，本申请提供一种正畸器具锁定可靠，能够提高固定弓丝的可靠性。将其应用于正畸装置中，能够提高矫正成功率。
为了更好地理解本实用新型的正畸器具，下面结合附图进行阐述。
如图1至图7所示，在本公开的一些实施例中，提供一种正畸器具10，包括承载件100、挡件200以及锁定件300。承载件100包括限位体110以及与限位体110间隔设置形成弓丝槽120的配合体130。挡件200与配合体130滑动连接，并相对于限位体110可移动，挡件200具有盖住弓丝槽120的关闭状态和打开弓丝槽120的打开状态，挡件200上与配合体130相对应的面为滑动配合面201，挡件200设有沿其滑动方向延伸的凹槽210，凹槽210设置在滑动配合面201上。凹槽210设有远离限位体110的锁定位211，凹槽210上位于锁定位211的一端设有第一侧面202。锁定件300设置于配合体130，锁定件300包括凸出于配合体130的弹性部310，弹性部310插入凹槽210中，且凹槽210可相对于弹性部310移动，弹性部310包括朝向第一侧面202设置的第一配合面311。当弹性部310位于锁定位211时，挡件200处于关闭状态，第一配合面311与第一侧面202之间的间距为A，且0mm＜A≤2.25mm。
该正畸器具10使用时，挡件200与配合体130滑动连接，并相对于限位体110移动 时，弹性部310插入凹槽210中，且凹槽210可相对于弹性部310移动，以实现挡件200在打开状态与关闭状态之间进行切换。挡件200关闭弓丝槽120的同时，第一侧面202也在向第一配合面311靠近，当弹性部310滑动进入锁定位211被锁定，挡件200处在关闭状态时，第一配合面311与第一侧面202之间的间距为A，而0mm＜A≤2.25mm，不会影响弹性部310与凹槽210的配合，使得挡件200在关闭状态能够被可靠地锁定，避免挡件200意外打开。进而利用挡件200可以有效阻止放置于弓丝槽120内的弓丝30脱离弓丝槽120，能够提高固定弓丝30的可靠性。
此外，利用弹性部310与锁定位211的配合，使得挡件200可锁定在承载件100上，无需再利用其它固定结构进行固定。而挡件200关闭后，锁定件300和凹槽210设置于挡件200和承载件100的内部，不容易堆积食物残渣，易于保持口腔清洁而受到人们的喜欢，有利于提高本申请的正畸器具10的竞争力。
需要说明的是，该“限位体110”可以为“承载件100的一部分”，即“限位体110”与“承载件100的其他部分，如配合体130”一体成型制造；也可以与“承载件100的其他部分，如配合体130”可分离的一个独立的构件，即“限位体110”可以独立制造，再与“承载件100的其他部分，如配合体130”组合成一个整体。
等同的，“某体”、“某部”可以为对应“构件”的一部分，即“某体”、“某部”与该“构件的其他部分”一体成型制造；也可以与“构件的其他部分”可分离的一个独立的构件，即“某体”、“某部”可以独立制造，再与“构件的其他部分”组合成一个整体。本申请对上述“某体”、“某部”的表达，仅是其中一个实施例，为了方便阅读，而不是对本申请的保护的范围的限制，只要包含了上述特征且作用相同应当理解为是本申请等同的技术方案。
需要说明的是，承载件100与配合体130的滑动连接的实现方式可以有多种，包括但不限于滑轨结构等。
如图1和图6所示，一些实施例中，配合体130设有凸部140，凸部140包括第二配合面142，第二配合面142设置于凸部140的远离弓丝槽120的一侧，弹性部310凸出凸部140设置；挡件200相对于凸部140可滑动，挡件200设有容纳凸部140的容纳空间220，凹槽210设置于容纳空间220的底部，容纳空间220包括朝向第二配合面142设置的第二侧面221。如此，挡件200处于关闭状态时，凸部140设置于容纳空间220内，可以包围凸部140，可以减少食物残渣进入正畸器具10，不容易滋生菌斑，改善口腔卫生，提高佩带者的矫正体验。挡件200处于关闭状态时，第二配合面142与第二侧面221之间的间距为B，0mm＜B≤2.25mm。如此，第二配合面142与第二侧面221之 间的间距为B，且0mm＜B≤2.25mm，使得凸部140与容纳空间220的配合不会干扰弹性部310与锁定位211锁定配合。
本实施例优选地，凸部140呈条形状，并沿滑动方向延伸，凸部140的相对两侧面由其顶部至底部逐渐收窄，形成挡件200的滑动轨道。如此，挡件200与凸部140滑动配合，并可以限制挡件200从凸部140的厚度方向脱离承载件100。其中，凸部140的相对两侧面的底沿定义本实施例滑动方向。
在其他实施例中，配合体130上设置滑轨，凸部140非必要滑动对接挡件200。其中，本实施例滑动方向由滑轨定义。
一些实施例中，第一侧面202和第二侧面221为直平面、斜平面或弧面；第一侧面202和第二侧面221阶梯过渡，或者，第一侧面202和第二侧面221圆滑或平滑过渡。
可选地，如图2所示，一些实施例中，限位体110的至少部分外表面呈圆滑曲面状。挡件200的至少部分外表面呈圆滑曲面状。如此，挡件200与承载件100匹配连接后，挡件200的外表面与承载件100的外表面匹配呈圆滑曲面状，可以减少佩带者异物感，提高正畸器具10佩带舒适性。
需要说明的是，锁定位211与弹性部310锁定配合的实现方式可以有多种，包括但不限于利用弹性部310的变形实现限定等，能够限制挡件200往打开弓丝槽120方向移动即可。
需要说明的是，弹性部310的具体实现方式可以有多种，包括弹片构成或者至少一个弹性柱312构成等等。
进一步地，弹性柱312的横截面可以为圆形、方形或C形等，此时弹性部朝向第一侧面设置的第一配合面对应可以为弧面、平面或复合面，复合面可以为平面与平面形成的折面，也可以为弧面与平面形成的折面等。当弹性柱312的数量为一个时，第一配合面为该弹性柱朝向第一侧面的侧面。当弹性柱的数量为两个时，第一配合面可以为任意一个弹性柱朝向第一侧面的侧面，也可以为两个弹性柱朝向第一侧面共同形成的侧面。
一示例中，如图1、图3以及图4所示，凹槽210还包括滑动位212以及设置于滑动位212与锁定位211之间的挤压位213，弹性部310包括间隔设置的两个弹性柱；当弹性部310处于滑动位212时，挡件200处于打开状态当弹性部310从锁定位211经过挤压位213时，两个弹性柱312分别与凹槽210的侧壁相挤压，以缩小两个弹性柱312之间的间隙。如此，通过弹性柱312收拢或张开来调整弹性部310的宽度大小。弹性部310从锁定位211移动至滑动位212的过程中，弹性柱312收拢以通过挤压位213，使得弹性部310可移动设置于滑动位212内；而弹性部310从滑动位212移动至锁定位211 的过程中，弹性柱312收拢以通过挤压位213，并可在锁定位211内张开时，使得弹性部310的宽度变大，而被锁定在锁定位211内。
可选地，弹性部310处于锁定位211内时，两个弹性柱312与凹槽210的侧壁挤压配合，使得弹性部310不会轻易发生移动，进而使得挡件200不会相对于承载件100发生移动，有利于进一步保证挡件200关闭的可靠性。
当然，在其他的实施方式中，弹性部310还包括一个弹性柱312，弹性柱312相对于其中心轴以大致径向方向挠曲，通过挤压位213进入锁定位211。
在上述任一实施例的基础上，如图1以及图6所示，在一些实施例中，限位体110包括朝向配合体130的第一限位面111，挡件200包括朝向限位体110的第二限位面230；挡件200处于关闭状态时，第二限位面230的至少部分与第一限位面111的至少部分相抵接；和/或，挡件200处于关闭状态时，第一限位面111呈凹口状，第二限位面230的至少部分伸入第一限位面111内。如此，通过第二限位面230的至少部分与第一限位面111的至少部分相抵接，或者第二限位面230的至少部分伸入第一限位面111内，使得挡件200关闭可靠，能够可靠地封闭弓丝槽120的进出口，进一步阻止弓丝30脱离弓丝槽120。
在上述实施例的基础上，如图7所示，一些实施例中，平行于挡件200的滑动配合面201的平行面剖切挡件200与弹性部310以形成剖切面，在剖切面上，第一侧面202的任一一点沿滑动方向至第二限位面230的第二距离为L11，第二距离形成的滑动方向线与第一配合面311相交的点沿滑动方向至第一限位面111的距离为L21，A＝L11-L21。如此，正畸器具10设计过程中，A的尺寸确定后，为了保证第一限位面111与第二限位面230配合可靠，可以根据第一侧面至第二限位面的距离L11，加上A的大小来确定第二限位面230至第一配合面的距离为L21，有利于降低制造难度。此外，只要L11和L21具有上述关系，则属于本申请的保护范围。
在一些实施例中，0.01mm≤A≤2.25mm。如此，第一配合面311与第一侧面202之间的间距大于或等于0.01mm具有一定容差空间，能够保证弹性部310与锁定位211锁定配合可靠。第一配合面311与第一侧面202之间的间隙小于或等于2.25mm，使得正畸器具整体尺寸不会过大，避免因为咬合运动而出现咬到正畸器具的情况；同时避免出现异物感太强烈，提高舒适度。另外，在正畸器具整体尺寸不至于太大的情况下，若第一配合面311与第一侧面202之间的间隙过大，大于2.25mm，可能会导致挡件200的壁厚过薄，导致挡件200的强度不足且增加制作难度。因此，本实施例中，将第一配合面311与第一侧面202之间的间隙设置为小于或等于2.25mm这样的合理范围内。
在一些实施例中，0.02mm≤A≤2.2mm；或者，0.02mm≤A≤2.1mm；或者，0.02mm≤A≤2mm；或者，0.02mm≤A≤1.9mm；或者，0.02mm≤A≤1.8mm；或者，0.02mm≤A≤1.7mm；或者，0.02mm≤A≤1.6mm；或者，0.02mm≤A≤1.5mm；或者，0.02mm≤A≤1.4mm；或者，0.02mm≤A≤1.3mm；或者，0.02mm≤A≤1.2mm；或者，0.02mm≤A≤1.1mm；或者，0.02mm≤A≤1.0mm。
进一步地，一些实施例中，0.02mm≤A≤0.5mm。如此，该挡件200处于关闭状态时，第一配合面311与第一侧面202之间的间距大于或等于0.02mm具有一定容差空间，能够保证弹性部310与锁定位211锁定配合可靠。而第一配合面311与第一侧面202之间的间距小于或等于0.5mm，可以减少食物残渣堆积，并可在保证挡件200强度的前提下，减少正畸器具10整体尺寸，避免咬合运动时，咬合到正畸器具10，提高佩带舒适度。
一些实施例中，0.05mm≤A≤0.2mm。如此，该挡件200处于关闭状态时，第一配合面311与第一侧面202之间的间距大于或等于0.05mm具有一定容差空间，能够保证弹性部310与锁定位211锁定配合可靠，且制造和装配难度低。而第一配合面311与第一侧面202之间的间距小于或等于0.2mm，可以进一步减少食物残渣堆积，并可在保证挡件200强度的前提下，进一步减少正畸器具10整体尺寸，进一步提高佩带舒适度。
另一些实施例中，0.06mm≤A≤0.21mm。
一些实施例中，A＝0.01mm、0.02mm、0.03mm、0.04mm、0.05mm、0.06mm、0.07mm、0.08mm、0.09mm、0.1mm、0.2mm、0.3mm、0.4mm、0.5mm、0.6mm、0.7mm、0.8mm、0.9mm、1mm、1.1mm、1.2mm、1.3mm、1.4mm、1.5mm、1.6mm、1.7mm、1.8mm、1.9mm、2mm、2.1mm、2.2mm、2.25mm等中的至少一种。
此外，在牙齿20矫正的过程中，通常先用小横截面的弓丝30进行粗矫正，粗矫正完成后，再利用大横截面的弓丝30进行精矫正。也即，在牙齿20矫正过程中，正畸器具10使用一段时间后，需要打开挡件200再次更换弓丝30，为了保证挡件200再次关闭后，仍可以可靠地被锁定。而利用上述A大于0mm的技术方案，再次关闭挡件200的过程中，即使限位体110发生腐蚀而导致限位体110与挡件200之间的距离增大时，第一配合面311与第一侧面202之间的间距大于0mm，使得挡件200可以继续往限位件方向移动，进而可以更好地阻止弓丝30脱离弓丝槽120。
结合前述的第一限位面111和第二限位面230，再次关闭挡件200的过程中，即使限位体110发生腐蚀而导致限位体110与挡件200之间的距离增大时，也可以使得第二限位面230的至少部分与第一限位面111的至少部分相抵接，或者第二限位面230的至少部分伸入第一限位面111内。
在上述任一实施例的基础上，如图7所示，一些实施例中，平行于挡件200的滑动配合面201的平行面剖切挡件200与弹性部310以形成剖切面，在剖切面上，第一侧面202的任一一点沿滑动方向至弓丝槽120的中心线121的第一距离为L1，第一距离形成的滑动方向线与第一配合面311相交的点沿滑动方向至弓丝槽120的中心线121的距离为L2，A＝L1-L2。如此，正畸器具10设计过程中，利用弓丝槽120的中心线121来辅助计算，A的尺寸确定后，可以根据弓丝槽120的中心线121至第一配合面311的距离L2，加上A的大小来确定弓丝槽120的中心线121至第一侧面202的距离为L1，降低设计难度。此外，只要L1和L2具有上述关系，则属于本申请的保护范围。
如图8和图9所示，一些实施例中，在龈颌方向23上的剖切面上，0.01mm≤A≤0.5mm。只要具有上述关系，则属于本申请的保护范围。
一些实施例中，0.01mm≤B≤2.25mm。如此，第二配合面142与第二侧面221之间的间距大于或等于0.01mm具有一定容差空间，能够保证不会干扰弹性部310与锁定位211锁定配合。
一些实施例中，0.02mm≤B≤0.5mm。如此，该挡件200处于关闭状态时，第二配合面142与第二侧面221之间的间距大于或等于0.02mm具有一定容差空间，保证不会干扰弹性部310与锁定位211锁定配合。而第二配合面142与第二侧面221之间的间距小于或等于0.5mm，可以减少食物残渣堆积，并可在保证挡件200强度的前提下，减少正畸器具10整体尺寸，避免咬合运动时，咬合到正畸器具10，提高佩带舒适度。同时，凸部140与容纳空间220的尺寸合理，以保证挡件200具有足够的强度。
一些实施例中，或者，0.02mm≤B≤2.2mm；或者，0.02mm≤B≤2.1mm；或者，0.02mm≤B≤2mm；或者，0.02mm≤B≤1.9mm；或者，0.02mm≤B≤1.8mm；或者，0.02mm≤B≤1.7mm；或者，0.02mm≤B≤1.6mm；或者，0.02mm≤B≤1.5mm；或者，0.02mm≤B≤1.4mm；或者，0.02mm≤B≤1.3mm；或者，0.02mm≤B≤1.2mm；或者，0.02mm≤B≤1.1mm；或者，0.02mm≤B≤1.0mm。
一些实施例中，0.05mm≤B≤0.2mm。如此，该挡件200处于关闭状态时，第二配合面142与第二侧面221之间的间距大于或等于0.05mm具有一定容差空间，能够保证不会干扰弹性部310与锁定位211锁定配合，且制造和装配难度低。而第二配合面142与第二侧面221之间的间距小于或等于0.2mm，可以进一步减少食物残渣堆积，并可在保证挡件200强度的前提下，进一步减少正畸器具10整体尺寸，进一步提高佩带舒适度。
或者，0.06mm≤B≤0.21mm。
一些实施例中，B＝0.01mm、0.02mm、0.03mm、0.04mm、0.05mm、0.06mm、0.07mm、 0.08mm、0.09mm、0.1mm、0.2mm、0.3mm、0.4mm、0.5mm、0.6mm、0.7mm、0.8mm、0.9mm、1mm、1.1mm、1.2mm、1.3mm、1.4mm、1.5mm、1.6mm、1.7mm、1.8mm、1.9mm、2mm、2.1mm、2.2mm、2.25mm等中的至少一种。
在上述任一实施例的基础上，如图7所示，一些实施例中，平行于挡件200的滑动配合面201的平行面剖切挡件200与弹性部310以形成剖切面，在剖切面上，第二侧面221的任一一点沿滑动方向至弓丝槽120的中心线121的第三距离为L3，第三距离形成的滑动方向线与第二配合面142相交的点沿滑动方向至弓丝槽120的中心线121的距离为L4，B＝L3-L4。如此，正畸器具10设计过程中，利用弓丝槽120的中心线121来辅助计算，A的尺寸确定后，确定B的尺寸，可以根据弓丝槽120的中心线121至第二配合面142的距离L4，加上B的大小来确定弓丝槽120的中心线121至第二侧面221的距离为L3，降低设计难度。此外，只要L3和L4具有上述关系，则属于本申请的保护范围。
如图8以及图9所示，一些实施例中，在龈颌方向23上的剖切面上，0.01mm≤B≤0.5mm。只要具有上述关系，则属于本申请的保护范围。
一些实施例中，A≥0.5mm，且B≥0.5mm。如此，当需要打开挡件200再次更换弓丝30，B≥0.5mm，使得凸部140不会干涉弹性部310与锁定位211的配合；而A≥0.5mm，使得可以挡件200再次关闭后，仍可以可靠地被锁定。
可选地，回见图1以及图2所示，一些实施例中，凸部140设有非圆形孔141，锁定件300与非圆形孔141相适配并紧固配合。
在其他的实施方式中，凸部140上也可以设置圆形孔。
不难理解，在本实施例中，锁定件的径向截面也可以是多边形、椭圆形等非圆形结构。
等同的，本申请“器具”、“系统”所包含的构件亦可灵活进行组合，即可根据实际进行模块化生产，作为一个独立的模块进行模块化组装；也可以分别进行组装，在本装置中构成一个模块。本申请对上述构件的划分，仅是其中一个实施例，为了方便阅读，而不是对本申请的保护的范围的限制，只要包含了上述构件且作用相同应当理解是本申请等同的技术方案。
在本申请的一些实施例中，如图9所示，提供了一种正畸装置，包括弓丝30和上述任一实施例中的正畸器具10，正畸器具10至少为两个，弓丝30设置于至少两个正畸器具10的弓丝槽120内。
该正畸装置应用于牙齿20矫正时，正畸器具10通过承载件100固定在牙齿20上，并根据需要在至少两牙齿20上分别固定一个正畸器具10。然后向远离限位体110方向 移动挡件200，使得挡件200处于打开状态，弓丝30可以放入弓丝槽120中。完成弓丝30安装后，挡件200向靠近限位体110方向移动过程中，第一配合面311也在向第一侧面202靠近，当挡件200移动至关闭状态时，第一配合面311与第一侧面202之间的间距为A，而0mm＜A≤2.25mm，不会影响弹性部310与锁定位211的配合，使得弹性部310与锁定位211锁定配合，利用挡件200可以有效阻止放置于弓丝槽120内的弓丝30脱离弓丝槽120，能够提高固定弓丝30的可靠性，进而能够提高矫正成功率。
一些实施例中，承载件通过粘接剂固定于牙齿上。如此，正畸器具固定于牙齿的过程中，不会损坏牙齿，且安装方便。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”、“设置于”、“固设于”或“安设于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认 为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。进一步地，当一个元件被认为是“固定连接”另一个元件，二者可以是可拆卸连接方式的固定，也可以不可拆卸连接的固定，如套接、卡接、一体成型固定、焊接等，在传统技术中可以实现，在此不再累赘。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。

Claims (10)

  1. 一种正畸器具，其特征在于，包括：
    承载件，其包括限位体以及与所述限位体间隔设置形成弓丝槽的配合体；
    挡件，其与所述配合体滑动连接，并相对于所述限位体可移动，所述挡件具有盖住所述弓丝槽的关闭状态和打开所述弓丝槽的打开状态，所述挡件设有沿其滑动方向延伸的凹槽，所述凹槽设有远离所述限位体的锁定位，所述凹槽上位于所述锁定位的一端设有第一侧面；
    锁定件，其设置于所述配合体，所述锁定件包括凸出于所述配合体的弹性部，所述弹性部插入所述凹槽中，且所述凹槽可相对于所述弹性部移动，所述弹性部包括朝向所述第一侧面设置的第一配合面；
    当所述弹性部位于所述锁定位时，所述挡件处于所述关闭状态，所述第一配合面与所述第一侧面之间的间距为A，且0mm＜A≤2.25mm。
  2. 根据权利要求1所述的正畸器具，其特征在于，0.01mm≤A≤2.25mm；或者，0.02mm≤A≤2.2mm；或者，0.02mm≤A≤2.1mm；或者，0.02mm≤A≤2mm；或者，0.02mm≤A≤1.9mm；或者，0.02mm≤A≤1.8mm；或者，0.02mm≤A≤1.7mm；或者，0.02mm≤A≤1.6mm；或者，0.02mm≤A≤1.5mm；或者，0.02mm≤A≤1.4mm；或者，0.02mm≤A≤1.3mm；或者，0.02mm≤A≤1.2mm；或者，0.02mm≤A≤1.1mm；或者，0.02mm≤A≤1.0mm；或者，0.02mm≤A≤0.5mm；或者，0.05mm≤A≤0.2mm；或者，0.06mm≤A≤0.21mm。
  3. 根据权利要求1所述的正畸器具，其特征在于，平行于所述挡件的滑动配合面的平行面剖切所述挡件与所述弹性部以形成剖切面，在所述剖切面上，所述第一侧面的任一一点沿滑动方向至所述弓丝槽的中心线的第一距离为L1，所述第一距离形成的滑动方向线与所述第一配合面相交的点沿滑动方向至所述弓丝槽的中心线的距离为L2，A＝L1-L2。
  4. 根据权利要求1所述的正畸器具，其特征在于，所述限位体包括朝向所述配合体的第一限位面，所述挡件包括朝向所述限位体的第二限位面；
    所述挡件处于所述关闭状态时，所述第二限位面的至少部分与所述第一限位面的至少部分相抵接；和/或，所述挡件处于所述关闭状态时，所述第一限位面呈凹口状，所述第二限位面的至少部分伸入所述第一限位面内；
    平行于所述挡件的滑动配合面的平行面剖切所述挡件与所述弹性部以形成剖切面， 在所述剖切面上，所述第一侧面的任一一点沿滑动方向至所述第二限位面的第二距离为L11，所述第二距离形成的滑动方向线与所述第一配合面相交的点沿滑动方向至所述第一限位面的距离为L21，A＝L21-L21。
  5. 根据权利要求1所述的正畸器具，其特征在于，所述配合体设有凸部，所述凸部包括第二配合面，所述第二配合面设置于所述凸部的远离所述弓丝槽的一侧，所述弹性部凸出所述凸部设置；所述挡件相对于所述凸部可滑动，所述挡件设有容纳所述凸部的容纳空间，所述凹槽设置于所述容纳空间的底部，所述容纳空间包括朝向所述第二配合面设置的第二侧面；所述挡件处于所述关闭状态时，所述第二配合面与所述第二侧面之间的间距为B，0mm＜B≤2.25mm。
  6. 根据权利要求5所述的正畸器具，其特征在于，0.01mm≤B≤2.25mm；或者，0.02mm≤B≤2.2mm；或者，0.02mm≤B≤2.1mm；或者，0.02mm≤B≤2mm；或者，0.02mm≤B≤1.9mm；或者，0.02mm≤B≤1.8mm；或者，0.02mm≤B≤1.7mm；或者，0.02mm≤B≤1.6mm；或者，0.02mm≤B≤1.5mm；或者，0.02mm≤B≤1.4mm；或者，0.02mm≤B≤1.3mm；或者，0.02mm≤B≤1.2mm；或者，0.02mm≤B≤1.1mm；或者，0.02mm≤B≤1.0mm；或者，0.02mm≤B≤0.5mm；或者，0.05mm≤B≤0.2mm；或者，0.06mm≤B≤0.21mm。
  7. 根据权利要求5所述的正畸器具，其特征在于，平行于所述挡件的滑动配合面的平行面剖切所述挡件与所述弹性部以形成剖切面，在所述剖切面上，所述第二侧面的任一一点沿滑动方向至所述弓丝槽的中心线的第三距离为L3，所述第三距离形成的滑动方向线与所述第二配合面相交的点沿滑动方向至所述弓丝槽的中心线的距离为L4，B＝L3-L4。
  8. 根据权利要求5所述的正畸器具，其特征在于，所述第一侧面和第二侧面为直平面、斜平面或弧面；所述第一侧面和所述第二侧面阶梯过渡，或者，所述第一侧面和所述第二侧面圆滑或平滑过渡。
  9. 根据权利要求1至8任一项所述的正畸器具，其特征在于，所述凹槽还设有挤压位，所述弹性部包括一个弹性柱，所述弹性柱相对于其中心轴以大致径向方向挠曲通过所述挤压位进入所述锁定位；或者，
    所述凹槽还设有挤压位，所述弹性部包括两个弹性柱，所述两个弹性柱经过所述挤压位时，所述两个弹性柱分别与所述凹槽的侧壁相挤压，以缩小两个所述弹性柱之间的间隙。
  10. 一种正畸装置，其特征在于，包括弓丝以及权利要求1至9任一项所述的正畸器具，所述正畸器具至少为两个，所述弓丝用于设置于至少两个所述正畸器具的弓丝槽内。
PCT/CN2023/087897 2022-04-29 2023-04-12 正畸器具及正畸装置 WO2023207601A1 (zh)

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