WO2021175324A1 - 正畸器具 - Google Patents

正畸器具 Download PDF

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Publication number
WO2021175324A1
WO2021175324A1 PCT/CN2021/079401 CN2021079401W WO2021175324A1 WO 2021175324 A1 WO2021175324 A1 WO 2021175324A1 CN 2021079401 W CN2021079401 W CN 2021079401W WO 2021175324 A1 WO2021175324 A1 WO 2021175324A1
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WO
WIPO (PCT)
Prior art keywords
movable
orthodontic appliance
main body
elastic
movable part
Prior art date
Application number
PCT/CN2021/079401
Other languages
English (en)
French (fr)
Inventor
钟庭进
徐梓恩
吉利
喻薇
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
Priority to ES21764113T priority Critical patent/ES2982211T3/es
Priority to EP21764113.3A priority patent/EP4094718B1/en
Priority to US17/797,437 priority patent/US20230067670A1/en
Publication of WO2021175324A1 publication Critical patent/WO2021175324A1/zh

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    • 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
    • A61C7/141—Brackets with reinforcing structure, e.g. inserts
    • 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
    • A61C7/34—Securing arch wire to bracket using lock pins
    • 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
    • A61C7/287—Sliding locks
    • 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 invention relates to the technical field of orthodontic appliances, in particular to orthodontic appliances.
  • orthodontists use orthodontic instruments to treat patients.
  • Orthodontic instruments such as brackets and buccal tubes are orthodontic The main component of the treatment device.
  • the orthodontist pastes the brackets on the teeth of the patient and puts the arch wire into the arch wire slot of the bracket.
  • the arch wire applies corrective force to the teeth through the bracket to move the teeth to the correct position.
  • the traditional bracket uses a ligature to keep the archwire in the archwire slot of each bracket.
  • movable parts such as latches or sliders to hold the archwire in the archwire slot of the bracket. Lock the brackets.
  • self-locking brackets have been successful in the market, but the structure of the brackets still needs continuous improvement to improve its function, stability and manufacturing cost.
  • Patent documents CN107714205B and CN208017607U and other prior art disclose a self-locking orthodontic bracket.
  • Most of the self-locking brackets on the market adopt a similar technical solution.
  • a depression is provided on the main body to fix the bracket.
  • One end of the fixed part of the moving part is set in the recess, while the other end of the fixed part is received by the accommodating cavity on the movable part, and the movement of the movable part is controlled by the elastic resilience of the fixed part.
  • the elastic part directly In contact with the cover body, the elastic part will repeatedly rub against the cover body during the opening and closing process of the cover body.
  • the elastic parts used in the brackets such as memory alloy, are not ideal in wear resistance.
  • the cover body is opened many times. After closing, the elastic member is worn out, which may cause problems such as unstable locking of the closing position of the cover body or being too easy to be opened.
  • This application aims to develop a more durable orthodontic appliance.
  • the present invention provides a more durable orthodontic appliance.
  • An orthodontic appliance comprising a main body and a movable part, the main body having an archwire groove for accommodating an archwire, the movable part cooperates with the main body and can be in an open position and a closed position relative to the main body
  • the orthodontic appliance further includes a fixed structure for fixing the movable component in at least a closed position, and the fixed structure includes one of the main body and the movable component.
  • the elastic member and the movable member, the movable member includes at least one protruding end, the protruding end is received in the other one of the main body and the movable member, the movable member can move and cooperate with
  • the elastic part fixes the movable part in at least a closed position, and the movable part obtains a movable space by squeezing the elastic part.
  • the elastic piece used in the bracket is made of materials such as memory alloy and other wear resistance. All of them are not ideal.
  • the control of the self-locking switch of CN107714205B and CN208017607U and other similar prior art is difficult to adjust, which easily causes the cover of the self-locking bracket to be unstable or open.
  • the switch needs to use a large force, which is not convenient for the doctor to operate.
  • the rigid movable part cooperates with the elastic part to control the movable part. It is the protruding end of the movable part that is in contact and friction with the movable part, while the rigid material is resistant to The abrasion performance is stronger than that of elastic materials, and the wear after friction with the movable parts is less, so that the movable parts of the orthodontic appliance can still be stably fixed in the closed position after being opened and closed many times.
  • this solution can be formed by the structure of elastic parts, and does not depend solely on the elastic properties of the material itself, so this solution can produce softer elasticity, and the control force value of the position lock of the movable part can also be adjusted by adjusting the elasticity.
  • the specific shape, size, thickness, etc. of the part can be finely adjusted and controlled.
  • one of the movable part and the main body is provided with a blocking portion, and when the protruding end is located at the first position, the blocking portion abuts against the protruding end and blocks the The movable part moves relative to the main body, and when the protruding end is located at the second position, the movable part can move relative to the main body.
  • the protruding end is in the first position, the movable part is in the closed position, and the blocking part blocks the movable part from moving, that is, the movable part is locked in the closed position; when the protruding end is in the closed position In the second position, the movable part can be moved to the open position.
  • the protruding end when the elastic member is in an unstressed state, the protruding end is located at the first position, and the movable member fixes the movable member in the closed position.
  • the elastic member does not apply force.
  • it is easy to assemble, which makes the production efficiency higher and the production cost is lower.
  • the movable member when there is no external force to move the movable part
  • the movable member can be stably located in this position, and the movable member can also be locked in the closed position more stably.
  • the elastic member can contract or expand and cooperate with the movable member to fix the movable member in at least the closed position.
  • the elastic member can meet the requirements as long as it can provide the resetting force for the movable member to allow the movable member to return to its original position.
  • the preferred solution is to use a spring-type elastic member, which is contracted and expanded The method produces elasticity.
  • the elasticity can be formed by the structure of the elastic member, and does not depend solely on the elastic properties of the material itself. Therefore, this solution can produce softer elasticity, and the control force value of the position lock of the movable part can also be adjusted by adjusting the elasticity.
  • the specific shape, size, thickness, etc. of the part can be finely adjusted and controlled.
  • the elastic member can be bent or straightened and cooperates with the movable member to fix the movable member in at least the closed position. It is also within the protection scope of the present application that some shapes of elastic members are bent to provide a restoring force to the movable member.
  • the elastic member includes at least one abutment wall, and the abutment wall abuts against the side wall of the movable member.
  • the abutting wall abuts against the movable element, when the movable element is forced to move, the elastic element is squeezed to deform, and after the force on the movable element is removed, the elastic element is reset
  • the force provides a restoring force to the movable element, and the movable element returns to the initial position during the restoration of the original shape of the elastic element.
  • the abutting wall may be one or two.
  • the elastic member may include two abutting walls.
  • the movable element is provided with a hole, and the elastic element is inserted into the hole.
  • the elastic member is driven to deform, and after the force applied to the movable member is removed, the restoring force of the elastic member provides a restoring force to the movable member.
  • the hole is a through hole, and the elastic member passes through the through hole.
  • the movable member is movable and cooperates with the elastic member to fix the movable member in at least a closed position, and the elastic member is used to provide space for movement and reset of the movable member. force.
  • the movement mode of the movable member can be movement, rotation, or a combination of movement and rotation.
  • the movable member can rotate around an axis that is substantially parallel to the lip and tongue direction or the jaw-gingival direction.
  • the rotation direction of the movable element can be arbitrary, and in a preferred embodiment, it rotates along an axis substantially parallel to the lip and tongue direction or the jaw-gingival direction.
  • the fixed structure includes two elastic members located on both sides of the movable member, and the elastic members are used to provide the movable member with a movement space and a restoring force.
  • the elastic member has an "N” shape, "M” shape, “ ⁇ ” shape, “ ⁇ ” shape, “C” shape on a cross-section substantially parallel to the labial and tongue direction or the jaw-gingival direction. , “S” type, “L” type, “T” type, “U” type, “H” type, straight type, or polyline type.
  • the elastic member can shrink and bend, it can be a shape that can be contracted or bent in the lip and tongue direction, and it can also be a shape that is contracted or curved in the jaw-gingival direction. Both can provide movement for the movable member. Space and reset force.
  • the movable element is a plate-shaped element or a pin.
  • the movable part can also be made into any other shape, plate shape or pin, with simple structure and lower cost.
  • one of the movable part and the main body is provided with a receiving cavity on a surface facing the movable member, and the protruding end of the movable member is received in the receiving cavity .
  • FIG. 1 is a front view of the orthodontic appliance of Example 1.
  • FIG. 1 is a front view of the orthodontic appliance of Example 1.
  • Fig. 2 is an exploded structural diagram of the orthodontic appliance of Example 1.
  • Fig. 3 is a cross-sectional view of the A-A section in Fig. 1 when the orthodontic appliance is closed.
  • Fig. 4 is a schematic diagram of the structure of the movable part when the orthodontic appliance is closed.
  • Fig. 5 is a cross-sectional view of the A-A section in Fig. 1 when the orthodontic appliance is opened.
  • Fig. 6 is a schematic diagram of the structure of the movable part in the opened state of the orthodontic appliance.
  • FIG. 7 is a cross-sectional view of the orthodontic appliance of Example 2.
  • Fig. 8 is an exploded structural diagram of the orthodontic appliance of Example 2.
  • Fig. 9 is an exploded structural view of the orthodontic appliance of Example 4.
  • FIG. 10 is a plan view of the orthodontic appliance of Example 5.
  • FIG. 10 is a plan view of the orthodontic appliance of Example 5.
  • Fig. 11 is an exploded structural view of the orthodontic appliance of Example 5.
  • Fig. 12 is a cross-sectional view of the B-B section in Fig. 10 when the orthodontic appliance is closed.
  • Fig. 13 is a cross-sectional view of the C-C section in Fig. 10 when the orthodontic appliance is closed.
  • Fig. 14 is a rear view of the movable part in the closed state of the orthodontic appliance.
  • Fig. 15 is a cross-sectional view of the C-C section in Fig. 10 when the orthodontic appliance is opened.
  • Fig. 16 is a rear view of the movable part in the opened state of the orthodontic appliance.
  • Figure 17 is a schematic diagram of a tooth reference system.
  • the embodiments of the present invention are intended to be independent of the position and direction in the oral cavity and the relevant terms used to describe the embodiments are merely to provide a clear description of the embodiments in the drawings. Likewise, the related terms labial, lingual, mesial, distal, occlusal, and jaw-gingival will never limit the present invention to a specific position or direction.
  • labial, lingual, mesial, distal, jaw plane, and jaw-gum are industry terms for orthodontic treatment.
  • the surface of the orthodontic bracket can be roughly divided into six faces.
  • the side facing the lips is the labial side of the orthodontic bracket, and the side facing the tongue is the lingual side of the orthodontic bracket.
  • the labial side and the lingual side face each other.
  • the direction formed by the labial side and the lingual side is also called the labial and tongue direction.
  • the surface facing the occlusal surface of the maxillary teeth is the occlusal surface of the orthodontic bracket, which can also be called the jaw plane or the maxillary end surface; the surface facing the gum tissue of the teeth to which it is bonded is the gingival end surface of the orthodontic bracket; the occlusal surface and The gingival end faces are opposite, and the direction formed by the occlusal surface and the gingival surface is also called the jaw-gingival direction.
  • the surface of the tooth facing the midline of the tooth is the mesial surface, the surface opposite to the mesial surface is called the distal surface, and the direction formed by the mesial surface and the distal surface is called the mesio-distal direction.
  • the direction such as the direction of the lips and tongue, it generally refers to two directions.
  • the lip-tongue direction specifically refers to a single direction, that is, the direction from the side of the lip to the side of the tongue, and it is distinguished by whether a short horizontal line is added.
  • the axis inclination marking line refers to an inclination line set on the orthodontic bracket with the same inclination angle as the bracket axis, which is used for more precise positioning when the doctor uses the bracket to bond to the tooth surface.
  • the components and spaces described below are also described by referring to the reference system of the mandibular teeth, such as the jaw-gingival direction of a certain component, the jaw end surface, etc., but it does not impose restrictions on the component and space.
  • Figure 1 is a front view of the orthodontic appliance in Example 1
  • Figure 2 is an exploded structural view of the orthodontic appliance in Example 1
  • Figure 3 is the AA section in Figure 1 when the orthodontic appliance is closed.
  • This embodiment provides an orthodontic appliance, which includes a main body 100 and a movable part 200.
  • the main body 100 has an archwire groove 120 for accommodating an archwire.
  • the movable part 200 is connected to the main body 100. Fitting and movable relative to the main body 100 between an open position and a closed position, the orthodontic appliance further includes a fixing structure for fixing the movable component 200 in at least the closed position, the
  • the fixed structure includes an elastic member 300 and a movable member 400 located in one of the main body 100 and the movable member 200.
  • the movable member 200 is a locking slider.
  • the movable part may also be other structures such as a clamp, the elastic member 300 and the movable member 400 are provided on the main body 100, the main body 100 is provided with a recess 110, the elastic member 300 and the movable member
  • the moving element 400 is arranged in the recess 110, and the orthodontic appliance may be a bracket or a buccal tube.
  • the movable element 400 includes at least one protruding end 410, and the protruding end 410 is received in the other of the main body 100 and the movable member 200. In this embodiment, the protruding end 410 is received In the movable component 200.
  • the movable element 400 can rotate and cooperate with the elastic element 300 to fix the movable element 200 in at least a closed position.
  • the movable element 400 obtains a movement space and a restoring force by squeezing the elastic element 300.
  • the elastic parts in the prior art such as CN107714205B directly contact the cover body, and the elastic parts will repeatedly rub against the cover body during the opening and closing process of the cover body.
  • the elastic parts used in the brackets use materials such as memory alloy and other wear resistance. None of them are ideal. After the cover is opened and closed many times, the elastic parts are worn out, which will cause problems such as unstable locking of the cover position or too easy to be opened; on the other hand, such solutions rely solely on elastic shafts or elasticity.
  • the body is bent and deformed to control the movement of the movable part and the limit self-locking.
  • the elasticity is determined by the elastic properties of the elastomer itself.
  • the elastic properties of the elastomer material are difficult to adjust, and the position of the movable part is locked.
  • the control force of the switch is determined by elasticity. Therefore, the control of the self-locking switch of CN107714205B and CN208017607U and other similar prior art is difficult to adjust, which easily causes the cover of the self-locking bracket to be unstable or open.
  • the switch needs to use a large force, which is not convenient for the doctor to operate.
  • the rigid movable member 400 is used in conjunction with the elastic member 300 to control the movable member 200, and the protruding end 410 of the movable member 400 is in contact and friction with the movable member 200.
  • the wear resistance of the rigid material is stronger than that of the elastic material, and the wear after friction with the movable part 200 is less, so that the movable part 200 of the orthodontic appliance can still be stable after being opened and closed many times.
  • the movable part 200 is fixed in the closed position.
  • the movable element 400 is connected to the main body 100 through a shaft 500.
  • the movable element 400 is rotatable about the shaft 500 and cooperates with the elastic element 300 to fix the movable element 200 at least In the closed position, the elastic member 300 is used to provide the movable member 400 with a movement space and a restoring force.
  • the movement mode of the movable member can be movement, rotation, or a combination of movement and rotation.
  • the movable element 400 can rotate around an axis substantially parallel to the jaw-gingival direction.
  • the rotation direction of the movable member 400 can be arbitrary, and can also be rotated along an axis substantially parallel to the direction of the lips.
  • the movable element 400 may not be fixedly connected to the main body 100, and may be directly placed in the recessed portion 110. As shown in FIG.
  • the elastic member 300 can contract and expand and cooperate with the movable member 400 to fix the movable member 200 in at least the closed position.
  • a spring-type elastic member 300 is adopted.
  • the elastic member 300 generates elasticity through contraction and expansion.
  • the elasticity may be formed by the structure of the elastic member 300, and may not rely solely on the elastic properties of the material itself, so this solution can produce more
  • the soft elasticity and the control force value of the position locking of the movable member 200 can also be finely adjusted and controlled by adjusting the specific shape, size, thickness, etc. of the elastic member 300.
  • the elastic member 300 is in the shape of "N", “M”, “ ⁇ ", “ ⁇ ", “C”, “S”, “S”, “N”, “M”, “ ⁇ ", “ ⁇ ", “C”, “S”, “N”, “M”, " ⁇ ", " ⁇ ", "C”, “S”, "N”, “M”, " ⁇ ", " ⁇ ", "C”, “S”, "S", “N”, “M”, " ⁇ ", " ⁇ ", "C”, “S”, “S”, “N”, “M", " ⁇ ", "C", “C”, “S”, “N”, "M”, " ⁇ ", "?"
  • the cross section of the elastic member 300 in the lip and tongue direction is “N" type.
  • the elastic member 300 can contract and bend, it can be a shape that is contractible or curved in the lip and tongue direction, or it can be a shape that is contracted or curved in the jaw-gingival direction, and both can be the movable member 400. Provide movement space and restorative force.
  • Figure 3 is a cross-sectional view of the AA section in Figure 1 when the orthodontic appliance is closed
  • Figure 4 is a schematic structural diagram of the movable part in the closed state of the orthodontic appliance, the movable part 200 and the main body
  • One of 100 is provided with a blocking portion 210, and the protruding end of the movable element is received in the accommodating cavity.
  • the movable element 400 and the elastic element 300 are provided on the main body 100
  • the blocking portion 210 is provided on the movable component 200.
  • the surface of the movable component 200 facing the movable element 400 is provided with a containing cavity 220
  • the blocking portion 210 is provided on a side wall of the containing cavity 220
  • the blocking portion 210 is
  • the blocking portion 210 may also be any other structure
  • the receiving cavity 220 may also be a through hole or other alternative structures.
  • the protruding end 410 is located at the first position. At this time, the blocking portion 210 abuts against the protruding end 410 and blocks the movable component 200 from moving relative to the main body 100.
  • the movable component 200 is in the closed position, and the blocking portion 210 blocks the movable component 200 from moving, that is, locks the movable component 200 in the closed position.
  • the elastic member 300 is in an unstressed state, that is, a state in which no deformation has occurred.
  • the elastic member 300 does not apply force. On the one hand, this facilitates assembly, so that The production efficiency is higher and the production cost is lower.
  • the elastic member 300 will not apply force to the movable member 400 to change its position.
  • the member 400 can be stably located in this position, and the movable member 200 can also be locked in the closed position more stably.
  • the elastic member 300 includes at least one abutting wall 310, and the abutting wall 310 abuts against the side wall of the movable member 400.
  • the abutting wall 310 is pressed against the movable element 400.
  • the restoring force of the elastic member 300 provides a restoring force to the movable member 400, and the movable member 400 returns to the initial position when the elastic member 300 returns to its original shape.
  • the abutting wall 310 may be one or two or more.
  • the elastic member includes one abutting wall 310.
  • the movable member 400 can be made into a plate-shaped member or pin, so that the production cost is lower.
  • the movable element 400 can also be made into any other shape.
  • the movable element 400 is a cylindrical pin.
  • Figure 5 is a cross-sectional view of the AA section in Figure 1 when the orthodontic appliance is opened
  • Figure 6 is a schematic structural diagram of the movable part of the orthodontic appliance in a movable state.
  • the protruding end in Figure 5-6 410 is located in the second position, the movable component 200 can move relative to the main body 100, and the movable component 200 can move to the open position.
  • the side wall of the receiving cavity 220 can block the protruding end 410 from sliding out therefrom, thereby preventing the movable component 200 from sliding off the main body 100.
  • FIG. 7 is a cross-sectional view of the orthodontic appliance of Embodiment 2
  • FIG. 8 is an exploded structural view of the orthodontic appliance of Embodiment 2.
  • the fixed structure includes two elastic members 301 and 501 located on both sides of the movable member 401, and the elastic members 301 and 501 are used to provide The movable member 401 provides movement space and restoring force.
  • the two elastic members 301 and 501 have abutting walls 311 and 511, respectively, which abut against two sides of the movable member 401, respectively.
  • the movable member 201 is in the closed position.
  • the elastic members 301 and 501 are in an unstressed state, and the movable member 401 is not fixedly connected to the main body 101.
  • the movable member 401 is movably placed in the recessed portion 111.
  • the movable member 201 squeezes the movable member 401, and the movable member 401 squeezes The elastic member 301, and then the movable member 401 rotates, and then allows the movable member 201 to move.
  • This embodiment provides an orthodontic appliance, which is basically the same as the orthodontic appliance of the second embodiment, and its structure diagram is completely consistent with that of the second embodiment. The difference is that: in the state shown in FIG. 7, the movable The part 201 is in the closed position. At this time, the elastic parts 301 and 501 are in a stressed state. When the movable part 201 is pushed by force, the movable part 201 squeezes the movable part 401, so The movable member 401 squeezes the elastic member 301, and then the movable member 401 moves. The movement form of the movable member 401 is a combination of movement and rotation, and then the movable member 201 is allowed to move.
  • Embodiment 9 is an exploded structural diagram of the orthodontic appliance of Embodiment 4.
  • This embodiment provides an orthodontic appliance whose structure is basically the same as that of Embodiment 1, except that the elastic member 302 has two There are two abutting walls 312 and 322, and the abutting walls 312 and 322 respectively abut the side walls of the movable member 402 on both sides.
  • the cross section of the elastic member 302 in the lip and tongue direction includes two " ⁇ " shapes.
  • FIG. 10 is a top view of the orthodontic appliance of Embodiment 5
  • FIG. 11 is an exploded structural view of the orthodontic appliance of Embodiment 5
  • FIG. 12 is a cross-sectional view of the BB section of FIG. 10 when the orthodontic appliance is closed.
  • Figure 13 is a cross-sectional view of the CC section in Figure 10 when the orthodontic appliance is closed.
  • This embodiment provides an orthodontic appliance.
  • the front view of the orthodontic appliance is the same as that of the orthodontic appliance in Example 1.
  • the orthodontic appliance includes a main body 103, a bottom plate 503, and a movable part 203.
  • the bottom plate 503 is used for sticking to the patient's teeth.
  • the movable part 203 cooperates with the main body 103 and can be opened relative to the main body 103.
  • the orthodontic appliance further includes a fixed structure for fixing the movable part 203 in at least the closed position, and the fixed structure includes elasticity located in the main body 103.
  • the main body 103 is provided with a recess 113, and the elastic member 303 and the movable member 403 are provided in the recess 113.
  • the movable element 403 includes at least one protruding end 413, and one protruding end 413 is received in the movable component 203.
  • the movable part 403 can rotate and cooperate with the elastic part 303 to fix the movable part 203 in at least the closed position.
  • the elastic part 303 can bend and cooperate with the movable part 403 to fix the movable part 203 at least. Fix in at least closed position.
  • the movable member 403 is provided with a hole, and the elastic member 303 is inserted into the hole.
  • the elastic member 303 is driven to bend and deform. It may also be driven to expand the elastic member 303, and after the force on the movable member is removed, the elastic member 303
  • the restoring force of 303 provides a restoring force to the movable element 403, and the movable element 403 returns to the initial position when the elastic element 303 returns to its original shape.
  • the hole is a through hole, and the elastic member 303 passes through the through hole.
  • the cross-section of the elastic member 303 in the jaw-gingival direction is in the shape of a broken line.
  • the elastic member may also be linear.
  • the elasticity of the broken line type can be formed by the structure of the elastic element, instead of relying solely on the elastic properties of the material itself, it can produce softer elasticity, and the position of the movable part 203 can be locked.
  • the strength value can also be finely adjusted and controlled by adjusting the specific shape, size, thickness, etc. of the elastic member 303.
  • FIG. 13 is a cross-sectional view of the CC section of FIG. 10 in the closed state of the orthodontic appliance
  • FIG. 14 is a rear view of the movable part in the closed state of the orthodontic appliance
  • the movable part 203 faces the movable
  • the surface of the member 403 is provided with a receiving cavity 223, the side wall of the receiving cavity 223 is provided with a blocking portion 213, and the protruding end 413 of the movable member 403 is received in the receiving cavity 223.
  • the protruding end 413 is located at the first position. At this time, the blocking portion 213 abuts against the protruding end 413 and blocks the movable part 203 from moving relative to the main body 103.
  • the movable component 203 is located in the closed position, and the blocking portion 213 blocks the movable component 203 from moving, that is, locks the movable component 203 in the closed position.
  • the elastic member 303 is in an unstressed state, that is, a state in which no deformation has occurred.
  • the elastic member 303 does not apply force. On the one hand, this facilitates assembly, so that The production efficiency is higher and the production cost is lower.
  • the elastic member 303 will not apply force to the movable member 403 to change its position.
  • the member 403 can be stably located in this position, and the movable member 203 can also be locked in the closed position more stably.
  • the movable element 400 is a square column pin, and the production cost is low.
  • FIG. 15 is a cross-sectional view of the CC section in FIG. 10 when the orthodontic appliance is opened
  • FIG. 16 is a rear view of the movable part in the opened state of the orthodontic appliance, and the protruding end 413 in FIG. 15-16 is rotated
  • the movable part 203 can move relative to the main body 103, and the movable part 203 can move to the open position.
  • the side wall of the receiving cavity 223 can block the protruding end 413 from sliding out therefrom, thereby preventing the movable component 203 from slipping off the main body 103.

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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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Abstract

一种正畸器具，包括具有弓丝槽（120）的主体（100）和可移动部件（200），还包括用于将可移动部件（200）固定在至少关闭位置的固定结构，固定结构包括位于主体（100）和可移动部件（200）其中一个中的弹性件（300）和可动件（400），可动件（400）包括至少一个突出端（410），突出端（410）被接收于主体（100）和可移动部件（200）的另外一个中，可动件（400）协同弹性件（300）将可移动部件（200）固定在至少关闭位置，可动件（400）通过挤压弹性件（300）获取活动空间。可移动部件（200）开合过程中，耐磨的可动件（400）替代弹性件（300）与可移动部件（200）发生摩擦，提高了器具的耐磨性能和使用寿命。

Description

正畸器具 技术领域
本发明涉及口腔正畸器械技术领域，具体涉及正畸器具。
背景技术
目前针对牙列拥挤、龅牙、牙齿排列不齐、咬合不正等牙齿或面部的问题，正畸医生是采用正畸器械来对患者进行治疗，托槽、颊面管等正畸器具是正畸治疗器械的主要组成部分。在常规正畸治疗中，正畸医生将托槽粘贴在患者牙齿上，并将弓丝放入托槽的弓丝槽内，弓丝通过托槽向牙齿施加矫正力，以将牙齿移动到正确位置。传统的托槽是应用结扎线将弓丝保持在每个托槽的弓丝槽内，现已发展成采用插销或滑块等可移动部件将弓丝保持在托槽的弓丝槽内的自锁托槽。目前自锁托槽已在市场上取得了成功，但是托槽的结构还需要不断改进以完善其功能、稳定性和制造成本。
专利文件CN107714205B和CN208017607U等现有技术中公开了一种自锁正畸托槽，市场上绝大多数的自锁托槽是采用与之类似的技术方案，在主体上设置凹陷部，将固定可移动部件的固定件的一端设置在凹陷部内，同时固定件的另一端被可移动部件上的容纳腔接收，通过固定件的弹性回弹力控制可移动部件的移动，此类方案一方面弹性件直接与盖体接触，在盖体开合过程中弹性件会反复与盖体摩擦，目前托槽所使用的弹性件所采用的材料如记忆合金等耐磨性能均不够理想，在盖体多次开合过后，弹性件磨损厉害，会导致盖体盖合位置的锁定不稳或太容易被打开等问题。
本申请旨在开发一种更耐用的正畸器具。
发明内容
针对上述技术问题，本发明提供一种更耐用的正畸器具。
本发明解决该技术问题所采用的技术方案是：
一种正畸器具，包括主体和可移动部件，所述主体具有用于容纳弓丝的弓丝槽，所述可移动部件与所述主体配合并且可相对于所述主体在打开位置及关闭位置之间移动，所述正畸器具还包括固定结构，所述固定结构用于将所述可移动部件固定在至少关闭位置，所述固定结构包括位于所述主体和所述可移动部件其中一个中的弹性件和可动件，所述可动件包括至少一个突出端，所述突出端被接收于所述主体和所述可移动部件的另外一个中，所述可动件能活动并且协同所述弹性件将所述可移动部件固定在至少关闭位置，所述可动件通过挤压所述弹性件获取活动空间。CN107714205B等现有技术中，弹性件直接与盖体接触，在盖体开合过程中弹性件会反复与盖体摩擦，目前托槽所使用的弹性件所采用的材料如记忆合金等耐磨性能均不够理想，在盖体多次开合过后，弹性件磨损厉害，会导致盖体盖合位置的锁定不稳或太容易被打开等问题，另一方面此类方案是单纯依赖弹性轴或者弹性体发生弯曲变形，来控制可移动部件的移动以及限位自锁，弹性是由弹性体本身材料的弹性性能所决定，弹性体材料的弹性性能是很难调整的，而可移动部件的位置锁定开关的控制力量是由弹性决定的，所以CN107714205B和CN208017607U等类似的现有技术其自锁开关的控制是难以调整的，容易导致自锁托槽的盖体存在盖合不稳或打开盖体的开关需要使用较大力，不便于医生操作。而本方案是利用刚性的所述可动件协同所述弹性件来控制所述可移动部件，与所述可移动部件接触摩擦的是所述可动件的突出端，而钢性材料其耐磨性能比弹性材料的耐磨性能更强，与可移动部件摩擦后磨损较小，能使得正畸器具的可移动部件在开合多次后仍然能够稳定地将所述可移动部件固定在关闭位置。而且本方案的弹性可以是利用弹性件的 结构形成，可以不是单纯依赖材料自身的弹性性能，所以本方案能够产生更加柔和的弹性，而且可移动部件的位置锁定的控制力量值也可以通过调整弹性件的具体形状、尺寸、厚度等来进行细微调节控制。
在一些具体的实施方式中，所述可移动部件和所述主体其中之一上设有阻挡部，当所述突出端位于第一位置时，所述阻挡部抵靠所述突出端并阻挡所述可移动部件相对于所述主体移动，当所述突出端位于第二位置时，所述可移动部件能相对于所述主体移动。所述突出端位于第一位置时，所述可移动部件位于关闭位置，所述阻挡部阻挡所述可移动部件移动，即是将所述可移动部件锁定在关闭位置；当所述突出端位于第二位置时，所述可移动部件可以移动直至打开位置。
在一些优选的实施方式中，所述弹性件在不受力状态下，所述突出端位于所述第一位置，所述可动件将所述可移动部件固定在关闭位置。在所述可移动部件位于关闭位置时，所述弹性件不施力，一方面这样便于装配，使得生产效率更高，生产成本更低，另一方面当没有外力想要移动所述可移动部件时，弹性件不会对所述可动件施加力使得其位置发生改变，所述可动件能够稳定位于该位置，所述可移动部件也能够更稳定的被锁定在关闭位置。
在一些具体的实施方式中，所述弹性件能收缩或扩张并协同所述可动件将所述可移动部件固定在至少关闭位置。所述弹性件只要能够为所述可动件提供复位力让所述可动件恢复原位即能满足要求，优选的方案是采用弹簧式的弹性件，所述弹性件是通过收缩和扩张的方式产生弹性，弹性可以是利用弹性件的结构形成，可以不是单纯依赖材料自身的弹性性能，所以本方案能够产生更加柔和的弹性，而且可移动部件的位置锁定的控制力量值也可以通过调整弹性件的具体形状、尺寸、厚度等来进行细微调节控制。
在另一些具体的实施方式中，所述弹性件能弯曲或伸直并协同所述可动件将所述可移动部件固定在至少关闭位置。一些形状的弹性件通过弯曲来为所述可动件提供复位力也在本申请的保护范围内。
在一些具体的实施方式中，所述弹性件包括至少一个抵靠壁，所述抵靠壁抵靠所述可动件的侧壁。所述抵靠壁抵紧所述可动件，所述可动件受力活动时，挤压所述弹性件形变，而撤去对所述可动件的施力后，所述弹性件的复位力为所述可动件提供复位力，所述弹性件恢复原形的过程中，所述可动件恢复到初始位置。所述抵靠壁可以是一个，也可以是两个，当所述可动件设于所述弹性件的中间时，所述弹性件可以含有两个抵靠壁。
在另一些具体的实施方式中，所述可动件上设有孔，所述弹性件插入所述孔。所述可动件受力活动时，带动所述弹性件形变，而撤去对所述可动件的施力后，所述弹性件的复位力为所述可动件提供复位力，所述弹性件恢复原形的过程中，所述可动件恢复到初始位置。在进一步优选的实施方式中，所述孔为通孔，所述弹性件穿过所述通孔。
在一些优选的实施方式中，所述可动件可活动并且协同所述弹性件将所述可移动部件固定在至少关闭位置，所述弹性件用于给所述可动件提供活动空间和复位力。所述可动件的活动方式可以是移动，也可以是转动，也可以是移动与转动结合。
在一些优选的实施方式中，所述可动件能绕大致平行于唇舌方向或颌龈方向的轴转动。所述可动件的转动方向可以是任意的，在优选的实施例中，沿着大致平行于唇舌方向或颌龈方向的轴转动。
在另一些具体的实施方式中，所述固定结构包括位于所述可动件两侧的两个弹性件，所述弹性件用于给所述可动件提供活动空间和复位力。
在一些具体的实施方式中，所述弹性件在大致平行于唇舌方向或颌龈方向的截面上呈“N”型、“M”型、“π”型、“匚”型、“C”型、“S”型、“L”型、“T”型、“U”型、“H”型、直线型、折线型中的任一种。只要是弹性件能够发生收缩、弯曲，可以是在唇舌方向的截面呈可收缩或弯曲的形状，也可以是在颌龈方向上呈收缩或弯曲的形状，均能够为所述可动件提供活动空间和复位力。
在一些具体的实施方式中，所述可动件为板状件或销。可动件也可以做成其他任意形状，做成板状或销，结构简单，成本更低。
在一些具体的实施方式中，所述可移动部件和所述主体其中之一在朝向所述可动件的表面设有容纳腔，所述可动件的突出端被接收于所述容纳腔中。
下面结合附图和实施例对本发明作进一步说明。
附图说明
图1是实施例1的正畸器具的主视图。
图2是实施例1的正畸器具的爆炸结构图。
图3是正畸器具关闭状态下图1中的A-A截面的剖视图。
图4是正畸器具关闭状态下可移动部件的结构示意图。
图5是正畸器具打开状态下图1中的A-A截面的剖视图。
图6是正畸器具打开状态下可移动部件的结构示意图。
图7是实施例2的正畸器具的剖视图。
图8是实施例2的正畸器具的爆炸结构图。
图9是实施例4的正畸器具的爆炸结构图。
图10是实施例5的正畸器具的俯视图。
图11是实施例5的正畸器具的爆炸结构图。
图12是正畸器具关闭状态下图10中B-B截面的剖视图。
图13是正畸器具关闭状态下图10中C-C截面的剖视图。
图14是正畸器具关闭状态下可移动部件的后视图。
图15是正畸器具打开状态下图10中C-C截面的剖视图。
图16是正畸器具打开状态下可移动部件的后视图。
图17是牙齿参考系的示意图。
具体实施方式
在下面的结构描述中，需要使用到牙齿的参考系来描述正畸托槽，具体参见图17，在此所使用的，用于描述正畸托槽的诸如唇侧、舌侧、近中、远中、咬合、颌龈的术语是对应牙齿的参考系。然而，本发明的实施例并不限于所选的参考系以及描述的术语，因为正畸托槽可用于口腔内的其他牙齿以及其他方向上。例如，正畸托槽也可粘接到牙齿的舌侧表面使用，也落入本发明的范围内。本领域技术人员将意识到，当参考系中存在变化时，可能不能直接应用在此使用的描述性术语。然而，本发明的实施例意欲独立于口腔内的位置和方向并且用于描述实施例的相关术语仅仅是对附图中的实施例提供明确的说明。同样地，相关术语唇侧、舌侧、近中、远中、咬合及颌龈绝不会将本发明限制在特定的位置或方向。
需要说明的是，相关术语唇侧、舌侧、近中、远中、颌平面及颌龈为正畸治疗的行业术语。以下颌牙齿为例，正畸托槽的表面可以大致分为六个面。面向唇部的面，为正畸托槽的唇侧面，面向舌部的面，为正畸托槽的舌侧面，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。面向上颌牙齿咬合的面，为正畸托槽的咬合面，也可以称为颌平面、颌端面；面向其粘接的牙齿的牙龈组织的面，为正畸托槽的龈端面；咬合面和龈端面相对，咬合面 与齿龈面形成的方向也叫做颌龈方向。牙齿朝向牙齿中线的面为近中面，与所述近中面相对的面称为远中面，近中面和远中面形成的方向叫做近远中方向。
且在方向的描述上，如唇舌方向，一般指双向。而如唇-舌方向，特指单一方向，即从唇侧面向舌侧面的方向，以是否加入短横线作为区别。
轴倾标识线指的是，正畸托槽上设置的一条与托槽轴倾角角度相同的倾斜线，用于医生使用托槽粘接到牙面时是更加精准定位。
再者，以下描述的部件及空间也引用下颌牙齿的参考系来描述，如某部件的颌龈方向、颌端面等，但不对该部件及空间造成限制。
实施例1：
参照图1-3，图1是实施例1的正畸器具的主视图，图2是实施例1的正畸器具的爆炸结构图，图3是正畸器具关闭状态下图1中的A-A截面的剖视图，本实施例提供了一种正畸器具，包括主体100和可移动部件200，所述主体100具有用于容纳弓丝的弓丝槽120，所述可移动部件200与所述主体100配合并且可相对于所述主体100在打开位置及关闭位置之间移动，所述正畸器具还包括固定结构，所述固定结构用于将所述可移动部件200固定在至少关闭位置，所述固定结构包括位于所述主体100和所述可移动部件200其中一个中的弹性件300和可动件400，在本实施例中，所述可移动部件200是锁定滑块，在其他实施例中，所述可移动部件也可以是其他夹具等结构，所述弹性件300和可动件400设于所述主体100上，所述主体100上设有凹陷部110，所述弹性件300和可动件400设于所述凹陷部110内，所述正畸器具可以是托槽也可以是颊面管。所述可动件400包括至少一个突出端410，所述突出端410被接收于所述主体100和所述可移动部件200的另外一个中，在本实施例中，所述突出端410被接收于所述可移动部件200中。所述可动件400能转动并且协同所述弹性件300 将所述可移动部件200固定在至少关闭位置，所述可动件400通过挤压所述弹性件300获取活动空间和复位力。
CN107714205B等现有技术中的弹性件直接与盖体接触，在盖体开合过程中弹性件会反复与盖体摩擦，目前托槽所使用的弹性件所采用的材料如记忆合金等耐磨性能均不够理想，在盖体多次开合过后，弹性件磨损厉害，会导致盖体盖合位置的锁定不稳或太容易被打开等问题；另一方面此类方案是单纯依赖弹性轴或者弹性体发生弯曲变形，来控制可移动部件的移动以及限位自锁，弹性是由弹性体本身材料的弹性性能所决定，弹性体材料的弹性性能是很难调整的，而可移动部件的位置锁定开关的控制力量是由弹性决定的，所以CN107714205B和CN208017607U等类似的现有技术其自锁开关的控制是难以调整的，容易导致自锁托槽的盖体存在盖合不稳或打开盖体的开关需要使用较大力，不便于医生操作。而本方案是利用刚性的所述可动件400协同所述弹性件300来控制所述可移动部件200，与所述可移动部件200接触摩擦的是所述可动件400的突出端410，而钢性材料的耐磨性能比弹性材料的耐磨性能更强，与所述可移动部件200摩擦后磨损较小，能使得正畸器具的可移动部件200在开合多次后仍然能够稳定地将所述可移动部件200固定在关闭位置。
参照图3-6，所述可动件400通过轴500与所述主体100连接，所述可动件400可绕轴500转动并且协同所述弹性件300将所述可移动部件200固定在至少关闭位置，所述弹性件300用于给所述可动件400提供活动空间和复位力。所述可动件的活动方式可以是移动，也可以是转动，也可以是移动与转动结合。具体地，所述可动件400能绕大致平行于颌龈方向的轴转动。所述可动件400的转动方向可以是任意的，也可以是沿着大致平行于唇舌方向的轴转动。在其他实施例中，所述可动件400也可以不与所述主体100固定连接，可以直接放 入所述凹陷部110内。
在本实施例中，所述弹性件300能收缩和扩张并协同所述可动件400将所述可移动部件200固定在至少关闭位置。采用弹簧式的弹性件300，所述弹性件300是通过收缩和扩张的方式产生弹性，弹性可以是利用弹性件300的结构形成，可以不是单纯依赖材料自身的弹性性能，所以本方案能够产生更加柔和的弹性，而且可移动部件200的位置锁定的控制力量值也可以通过调整弹性件300的具体形状、尺寸、厚度等来进行细微调节控制。所述弹性件300在大致平行于唇舌方向或颌龈方向的截面上呈“N”型、“M”型、“π”型、“匚”型、“C”型、“S”型、“L”型、“T”型、“U”型、“H”型、直线型、折线型中的任一种，在本实施例中，所述弹性件300在唇舌方向的截面呈“N”型。只要是弹性件300能够发生收缩、弯曲，可以是在唇舌方向的截面呈可收缩或弯曲的形状，也可以是在颌龈方向上呈收缩或弯曲的形状，均能够为所述可动件400提供活动空间和复位力。
参照图3-4，图3是正畸器具关闭状态下图1中的A-A截面的剖视图，图4是正畸器具关闭状态下可移动部件的结构示意图，所述可移动部件200和所述主体100其中之一上设有阻挡部210，所述可动件的突出端被接收于所述容纳腔中。在本实施例中，所述可动件400和所述弹性件300设于所述主体100上，所述阻挡部210设于所述可移动部件200上。在本实施例中，所述可移动部件200朝向所述可动件400的面上设有容纳腔220，所述阻挡部210设于所述容纳腔220的侧壁，所述阻挡部210为凸起结构，在其他的实施例中，所述阻挡部210也可以是其他任意结构，所述容纳腔220也可以是通孔或其他替代结构。图3-4中所述突出端410位于所述第一位置，此时所述阻挡部210抵靠所述突出端410并阻挡所述可移动部件200相对于所述主体100移动，此时所述可移动部件 200位于关闭位置，所述阻挡部210阻挡所述可移动部件200移动，即是将所述可移动部件200锁定在关闭位置。此时，所述弹性件300为其不受力状态，即未发生形变的状态，在所述可移动部件200位于关闭位置时，所述弹性件300不施力，一方面这样便于装配，使得生产效率更高，生产成本更低，另一方面当没有外力想要移动所述可移动部件时，弹性件300不会对所述可动件400施加力使得其位置发生改变，所述可动件400能够稳定位于该位置，所述可移动部件200也能够更稳定的被锁定在关闭位置。
所述弹性件300包括至少一个抵靠壁310，所述抵靠壁310抵靠所述可动件400的侧壁。所述抵靠壁310抵紧所述可动件400，所述可动件400受力移动或转动时，挤压所述弹性件300形变，而撤去对所述可动件400的施力后，所述弹性件300的复位力为所述可动件400提供复位力，所述弹性件300恢复原形的过程中，所述可动件400恢复到初始位置。所述抵靠壁310可以是一个，也可以是两个或多个，在本实施例中，所述弹性件包括一个抵靠壁310。
结构越简单的零件其生产成本越低，所述可动件400可以制成板状件或销，使得其生产成本较低。可动件400也可以做成其他任意形状，在本实施例中，所述可动件400为圆柱形销。
参照图5-6，图5是正畸器具打开状态下图1中的A-A截面的剖视图，图6是正畸器具可移动部件可移动状态下的结构示意图，图5-6中所述突出端410位于第二位置，所述可移动部件200能相对于所述主体100移动，所述可移动部件200可以移动直至打开位置。当所述可移动部件200移动至打开位置时，所述容纳腔220的侧壁能够阻挡所述突出端410从中滑出，继而避免所述可移动部件200从所述主体100上滑落。
实施例2：
参照图7-8，图7是实施例2的正畸器具的剖视图，图8是的实施例2的正畸器具的爆炸结构图，本实施例提供了一种正畸器具其结构与实施例1基本相同，不同之处在于：一些具体的实施方式中，所述固定结构包括位于所述可动件401两侧的两个弹性件301和501，所述弹性件301和501用于给所述可动件401提供活动空间和复位力。所述两个弹性件301和501分别具有抵靠壁311和511，分别抵靠所述可动件401的两侧。在图7中，所述可移动部件201位于关闭位置，此时，所述弹性件301和501均处于不受力状态，所述可动件401不与所述主体101固定连接，所述可动件401可移动地放置在所述凹陷部111中，当施力推动所述可移动部件201时，所述可移动部件201挤压所述可动件401，所述可动件401挤压所述弹性件301，继而所述可动件401转动，继而允许所述可移动部件201移动。
实施例3：
本实施例提供了一种正畸器具，与实施例2的正畸器具基本相同，其结构图与实施例2完全一致，不同之处在于：如图7中所示状态下，所述可移动部件201位于关闭位置，此时，所述弹性件301和501均处于受力状态，当施力推动所述可移动部件201时，所述可移动部件201挤压所述可动件401，所述可动件401挤压所述弹性件301，继而所述可动件401活动，其活动形式是移动和转动的组合，继而允许所述可移动部件201移动。
实施例4：
参照图9，图9是实施例4的正畸器具的爆炸结构图，本实施例提供了一种正畸器具其结构与实施例1基本相同，不同之处在于：所述弹性件302具有两个抵靠壁312和322，所述抵靠壁312和322分别抵靠所述可动件402的两侧侧壁。所述弹性件302在唇舌方向的截面包含两个“匚”型。
实施例5：
参照图10-13，图10是实施例5的正畸器具的俯视图，图11是实施例5的正畸器具的爆炸结构图，图12是正畸器具关闭状态下图10中B-B截面的剖视图，图13是正畸器具关闭状态下图10中C-C截面的剖视图，本实施例提供了一种正畸器具，该正畸器具的主视图与实施例1的正畸器具的主视图相同，所述正畸器具包括主体103、底板503和可移动部件203，底板503是用于粘贴在患者牙齿上的，所述可移动部件203与所述主体103配合并且可相对于所述主体103在打开位置及关闭位置之间移动，所述正畸器具还包括固定结构，所述固定结构用于将所述可移动部件203固定在至少关闭位置，所述固定结构包括位于所述主体103中的弹性件303和可动件403，所述主体103上设有凹陷部113，所述弹性件303和可动件403设于所述凹陷部113内。所述可动件403包括至少一个突出端413，一个所述突出端413被接收于所述可移动部件203中。所述可动件403能转动并且协同所述弹性件303将所述可移动部件203固定在至少关闭位置，所述弹性件303能弯曲并协同所述可动件403将所述可移动部件203固定在至少关闭位置。
所述可动件403上设有孔，所述弹性件303插入所述孔。所述可动件403受力移动或转动时，带动所述弹性件303弯曲形变，也可以是带动所述弹性件303扩张，而撤去对所述可动件的施力后，所述弹性件303的复位力为所述可动件403提供复位力，所述弹性件303恢复原形的过程中，所述可动件403恢复到初始位置。在本实施例中，所述孔为通孔，所述弹性件303穿过所述通孔。所述弹性件303在颌龈方向的截面呈折线型，在其他实施例中，所述弹性件也可以是直线型。折线型相比较直线型的弹性件，折线型的弹性可以是利用弹性件的结构形成，可以不是单纯依赖材料自身的弹性性能，能够产生更加柔和的 弹性，而且可移动部件203的位置锁定的控制力量值也可以通过调整弹性件303的具体形状、尺寸、厚度等来进行细微调节控制。
参照图13-14，图13是正畸器具关闭状态下图10中C-C截面的剖视图，图14是正畸器具关闭状态下可移动部件的后视图，所述可移动部件203朝向所述可动件403的面上设有容纳腔223，所述容纳腔223的侧壁设有阻挡部213，,所述可动件403的突出端413被接收于所述容纳腔223中。图13-14中所述突出端413位于所述第一位置，此时所述阻挡部213抵靠所述突出端413并阻挡所述可移动部件203相对于所述主体103移动，此时所述可移动部件203位于关闭位置，所述阻挡部213阻挡所述可移动部件203移动即是将所述可移动部件203锁定在关闭位置。此时，所述弹性件303为其不受力状态，即未发生形变的状态，在所述可移动部件203位于关闭位置时，所述弹性件303不施力，一方面这样便于装配，使得生产效率更高，生产成本更低，另一方面当没有外力想要移动所述可移动部件时，弹性件303不会对所述可动件403施加力使得其位置发生改变，所述可动件403能够稳定位于该位置，所述可移动部件203也能够更稳定的被锁定在关闭位置。
结构越简单的零件其生产成本越低，在本实施例中，所述可动件400为方柱形销，生产成本低。
参照图15-16，图15是正畸器具打开状态下图10中C-C截面的剖视图，图16是正畸器具打开状态下可移动部件的后视图，图15-16中所述突出端413转动至第二位置，所述可移动部件203能相对于所述主体103移动，所述可移动部件203可以移动直至打开位置。当所述可移动部件203移动至打开位置时，所述容纳腔223的侧壁能够阻挡所述突出端413从中滑出，继而避免所述可移动部件203从所述主体103上滑落。
本发明并不局限于上述实施方式，如果对本发明的各种改动或变型不脱离本发明的精神和范围，倘若这些改动和变型属于本发明的权利要求和等同技术范围之内，则本发明也意图包含这些改动和变型。

Claims (12)

  1. 一种正畸器具，其特征在于，包括主体和可移动部件，所述主体具有用于容纳弓丝的弓丝槽，所述可移动部件与所述主体配合并且可相对于所述主体在打开位置及关闭位置之间移动，所述正畸器具还包括固定结构，所述固定结构用于将所述可移动部件固定在至少关闭位置，所述固定结构包括位于所述主体和所述可移动部件其中一个中的弹性件和可动件，所述可动件包括至少一个突出端，所述突出端被接收于所述主体和所述可移动部件的另外一个中，所述可动件能活动并且协同所述弹性件将所述可移动部件固定在至少关闭位置，所述可动件通过挤压所述弹性件获取活动空间。
  2. 根据权利要求1所述的正畸器具，其特征在于，所述可移动部件和所述主体其中之一上设有阻挡部，当所述突出端位于第一位置时，所述阻挡部抵靠所述突出端并阻挡所述可移动部件相对于所述主体移动，当所述突出端位于第二位置时，所述可移动部件能相对于所述主体移动。
  3. 根据权利要求2所述的正畸器具，其特征在于，所述弹性件在不受力状态下，所述突出端位于所述第一位置，所述可动件将所述可移动部件固定在关闭位置。
  4. 根据权利要求1所述的正畸器具，其特征在于，所述弹性件能收缩或扩张并协同所述可动件将所述可移动部件固定在至少关闭位置。
  5. 根据权利要求1所述的正畸器具，其特征在于，所述弹性件能弯曲或伸直并协同所述可动件将所述可移动部件固定在至少关闭位置。
  6. 根据权利要求1-5任一项所述的正畸器具，其特征在于，所述弹性件包括至少一个抵靠壁，所述抵靠壁抵靠所述可动件的侧壁。
  7. 根据权利要求1-5任一项所述的正畸器具，其特征在于，所述可动件上设有孔，所述弹性件插入所述孔。
  8. 根据权利要求1-5任一项所述的正畸器具，其特征在于，所述可动件能绕大 致平行于唇舌方向或颌龈方向的轴转动。
  9. 根据权利要求1-5任一项所述的正畸器具，其特征在于，所述固定结构包括位于所述可动件两侧的两个弹性件，所述弹性件用于给所述可动件提供活动空间和复位力。
  10. 根据权利要求1-5任一项所述的正畸器具，其特征在于，所述弹性件在大致平行于唇舌方向或颌龈方向的截面上呈“N”型、“M”型、“π”型、“匚”型、“C”型、“S”型、“L”型、“T”型、“U”型、“H”型、直线型、折线型中的任一种。
  11. 根据权利要求1-5任一项所述的正畸器具，其特征在于，所述可动件为板状件或销，所述可移动部件为锁定滑块。
  12. 根据权利要求1-5任一项所述的正畸器具，其特征在于，所述可移动部件和所述主体其中之一在朝向所述可动件的表面设有容纳腔，所述可动件的突出端被接收于所述容纳腔中。
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EP4094718A1 (en) 2022-11-30
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