Anchorage connecting device

Abstract

The utility model provides an anchorage connecting device which is used for connecting a first tooth of a patient and an anchorage nail planted on a tooth jaw where the first tooth of the patient is located, the anchorage connecting device comprises a connecting rod and a bonding piece, in a working state, the bonding piece is fixedly bonded on the surface of the first tooth of the patient, and the connecting rod is connected with the bonding piece. The first section, close to the first end, of the connecting rod is slidably installed on the bonding piece in the extending direction of the connecting rod, the second end of the connecting rod is connected with the anchorage nail, the first end and the second end are the two opposite ends of the connecting rod, a limiting structure is arranged on the first section of the connecting rod and matched with the bonding piece, and the bonding piece is connected with the anchorage nail. The connecting rod can slide relative to the bonding piece in the first extending direction of the connecting rod, meanwhile, the connecting rod is prevented from sliding relative to the bonding piece in the second direction, and the first direction is opposite to the second direction.

Description

Technical Field

[0001] This application generally relates to a support connection device. Background Technology

[0002] Due to their ease of use, cleaning, and aesthetic appeal, shell-shaped orthodontic appliances are becoming increasingly popular in the field of orthodontic treatment. Orthodontic treatment using shell-shaped orthodontic appliances involves gradually repositioning the patient's teeth from their initial arrangement to a target tooth layout by wearing a series of shell-shaped appliances sequentially.

[0003] For some cases of crowded teeth, molar distalization is necessary to resolve the crowding. Typically, molar distalization is a phased process, proceeding from back to front, moving the current molar to create space before moving the next one. However, during orthodontic treatment using shell-type orthodontic appliances, the distalization of other teeth can cause the already distalized teeth to experience mesial support forces, potentially leading to back-and-forth movement and affecting the efficiency and effectiveness of molar distalization. Therefore, it is necessary to provide support to the already distalized teeth to prevent them from moving mesially, ensuring the effectiveness of molar distalization.

[0004] One existing technical solution involves connecting an anchorage screw and a distalized tooth with a steel wire to provide anchorage for the distalized tooth. In this solution, an adhesive is first bonded to the tooth surface. Then, the distance between the anchorage screw and the adhesive is measured. Next, based on the measured distance, an anchorage screw connection structure is bent at the first end of the steel wire, and an adhesive connection structure is bent at the second end of the steel wire. Finally, the first end of the steel wire is connected to the anchorage screw, and the second end of the steel wire is bonded to the adhesive.

[0005] However, the aforementioned existing technical solutions have the following two drawbacks. First, since the wire is a fully fixed connection to the tooth, all forces acting on the tooth in the mesiodistal direction are transmitted to the anchorage screw through the wire, which increases the risk of the anchorage screw falling out. Second, due to the structure of the anchorage connection device, the adhesive connection structure of the wire needs to be bent before assembling the wire to the anchorage screw and adhesive. Therefore, it requires repeated comparisons in the oral cavity to determine its length. This requires the operator to have certain clinical experience; otherwise, it is difficult to ensure the accuracy of the assembly. Furthermore, it makes the entire fabrication and assembly process time-consuming.

[0006] In view of the above, it is necessary to provide a new support connection device. Utility Model Content

[0007] One aspect of this utility model provides an anchorage connection device for connecting a patient's first tooth to an anchorage screw implanted in the jaw where the patient's first tooth is located. The anchorage connection device includes a connecting rod and an adhesive component. In the working state, the adhesive component is bonded to the surface of the patient's first tooth. A first segment of the connecting rod near its first end is slidably mounted on the adhesive component along its extension direction. The second end of the connecting rod is connected to the anchorage screw. The first end and the second end are opposite ends of the connecting rod. A limiting structure is provided on the first segment of the connecting rod. This limiting structure cooperates with the adhesive component, allowing the connecting rod to slide relative to the adhesive component along its extension direction while preventing the connecting rod from sliding relative to the adhesive component in a second direction. The first direction and the second direction are opposite directions.

[0008] In some embodiments, the first tooth is a molar that has been displaced or has not yet been displaced, and the anchorage connection is used to prevent the first tooth from moving in the mesial direction.

[0009] In some embodiments, the anchorage connection device is used in conjunction with a shell-shaped dental appliance for orthodontic treatment.

[0010] In some embodiments, the connecting rod is formed by bending metal wire.

[0011] In some implementations, the stiffness of the link is sufficient to prevent the first tooth from moving in the mesial direction.

[0012] In some embodiments, the adhesive is used to adhere to the buccal surface of the first tooth.

[0013] In some embodiments, the connection between the second end of the link and the anchor pin allows the link to rotate about the anchor pin.

[0014] In some embodiments, the adhesive is integrally formed.

[0015] In some embodiments, the adhesive member forms a block against the limiting structure to prevent the connecting rod from sliding relative to the adhesive member in the second direction.

[0016] In some embodiments, the adhesive forms a channel into which the first segment of the connecting rod is inserted.

[0017] In some embodiments, the limiting structure prevents passage through the channel to prevent the connecting rod from sliding relative to the adhesive in the second direction.

[0018] In some embodiments, the limiting structure is a plug formed of resin on the connecting rod.

[0019] In some implementations, the second direction forms an acute angle with the near-central direction.

[0020] In some embodiments, the anchorage screw is located distal to the first tooth.

[0021] In some embodiments, the top of the adhesive is provided with a functional accessory.

[0022] In some implementations, the functional accessory is a traction buckle or a bracket.

[0023] Another aspect of this application provides a bracing connection device, characterized in that it includes a connecting rod and an adhesive member, wherein a first segment of the connecting rod near a first end is configured to be slidably mounted on the adhesive member, and a limiting structure is provided on the first segment. When the adhesive member and the limiting structure are in a mating position, the connecting rod can slide relative to the adhesive member along a first direction in which it extends. The adhesive member blocks the limiting structure to prevent the connecting rod from sliding relative to the adhesive member along a second direction in which it extends. The first direction and the second direction are opposite directions. The second end of the connecting rod forms a bracing nail connection portion, and the first end and the second end are opposite ends.

[0024] In some embodiments, the limiting structure is a plug formed of resin on the connecting rod.

[0025] In some embodiments, the limiting structure is formed by bending the connecting rod. Attached Figure Description

[0026] The above and other features of this application will be further described below with reference to the accompanying drawings and their detailed description. It should be understood that these drawings only illustrate several exemplary embodiments according to this application and should not be considered as limiting the scope of protection of this application. Unless otherwise specified, the drawings are not necessarily to scale, and similar reference numerals denote similar parts.

[0027] Figure 1 An anchorage connection device installed in a patient's jaw is illustrated schematically in one embodiment of this application;

[0028] Figure 2 schematically shown Figure 1 The support connection device shown;

[0029] Figure 3 for Figure 2 A view of the adhesive joint shown along its length;

[0030] Figure 4A The bracing nail connection structure in yet another embodiment of this application is illustrated schematically;

[0031] Figure 4B The bracing nail connection structure in yet another embodiment of this application is illustrated schematically;

[0032] Figure 5 The limiting structure in yet another embodiment of this application is illustrated schematically;

[0033] Figure 6A This is a front view of the adhesive component in yet another embodiment of this application;

[0034] Figure 6B for Figure 6A Side view of the adhesive component shown;

[0035] Figure 7A This is a front view of the adhesive component in yet another embodiment of this application;

[0036] Figure 7B for Figure 7A Side view of the adhesive component shown;

[0037] Figure 8 A linkage in yet another embodiment of this application is illustrated schematically;

[0038] Figure 9 This illustration shows yet another application example of the support connection device of this application;

[0039] Figure 10 The support connection device in yet another embodiment of this application is illustrated schematically;

[0040] Figure 11A The support connection device in yet another embodiment of this application is schematically shown; and

[0041] Figure 11B The support connection device in yet another embodiment of this application is illustrated schematically. Detailed Implementation

[0042] The following detailed description incorporates the accompanying drawings, which form part of this specification. The illustrative embodiments mentioned in the specification and drawings are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art will understand, based on the teachings of this application, that many other embodiments can be employed and various changes can be made to the described embodiments without departing from the spirit and scope of this application. It should be understood that the various aspects of this application illustrated herein can be arranged, substituted, combined, separated, and designed in many different configurations, all of which are within the scope of this application.

[0043] One aspect of this application provides an anchorage connection device for connecting a patient's first tooth to an anchorage screw implanted in the jaw where the patient's first tooth is located. The anchorage connection device includes a connecting rod and an adhesive element. In the working state, the adhesive element is bonded to the surface of the patient's first tooth. A first end of the connecting rod is connected to the adhesive element, and a second end of the connecting rod opposite to the first end is connected to the anchorage screw. The cooperation between the first end of the connecting rod and the adhesive element allows the connecting rod to slide relative to the adhesive element in a first direction of its extension, while restricting the degree of freedom of the connecting rod relative to the adhesive element in a second direction opposite to the first direction. The connection between the connecting rod, the anchorage screw, and the adhesive element allows the anchorage screw to provide anchorage force to the first tooth in the second direction.

[0044] Teeth, in a healthy state, have a certain degree of physiological mobility, mainly in the horizontal direction, generally not exceeding 0.02 mm. This mobility provides a certain degree of protection for the teeth, buffering some external forces. Because the connecting rod can slide relative to the adhesive component along the first direction, when the tooth is subjected to an external force along the first direction, this force will not be transmitted to the anchorage screw, reducing the risk of the anchorage screw dislodging.

[0045] Because the connecting rod can slide relative to the adhesive along the first direction, dental professionals can precisely set a limiting structure on the connecting rod to restrict its degree of freedom relative to the adhesive along the second direction after assembling the connecting rod to the anchorage screw and the adhesive bonded to the tooth surface, without needing to pre-measure the position of the limiting structure on the connecting rod. On the one hand, this makes the position of the limiting structure more accurately meet actual needs; on the other hand, it simplifies the fabrication of the anchorage connection device.

[0046] Please refer to Figure 1 The image schematically illustrates an anchorage connection device 110 installed on a patient's jaw in one embodiment of this application.

[0047] Figure 1 This illustration shows a case of orthodontic treatment using a shell-shaped appliance, where molar distalization is needed to address crowding. The patient is wearing a shell-shaped appliance 120 on their first dentition (maxillary or mandibular), with the last molar 130 on one side of the first dentition already distalized. At this point, due to the distalization of the teeth mesial to molar 130, molar 130 experiences mesial support through the shell-shaped appliance 120. To prevent further mesial movement of molar 130, which would affect the efficiency and effectiveness of its distalization, support is required.

[0048] An anchorage screw 140 is implanted on the jawbone containing the first dentition, posterior to the molar 130. A first end of an anchorage connector 110 is connected to the molar 130, and a second end of the connector 110, opposite the first end, is connected to the anchorage screw 140. The anchorage screw 140, through its connection to the molar 130 via the anchorage connector 110, provides anchorage to the molar 130. This ensures that the mesial anchorage force on the molar 130 is ultimately applied to the anchorage screw 140 via the anchorage connector 110, thereby preventing the molar 130 from moving mesially.

[0049] Please refer to Figure 2 It schematically demonstrates Figure 1 The support connection device 110 shown.

[0050] The bracing connection device 110 includes a connecting rod 111 and an adhesive member 112, wherein the adhesive member 112 is bonded to the surface of the molar 130. A limiting structure 1111 is provided at the first end of the connecting rod 111, and a bracing pin connection structure 1113 is formed at the second end opposite to the first end. A section of the connecting rod 111 near the first end is slidably received in the adhesive member 112 along its extending direction.

[0051] Please refer to Figure 3 ,for Figure 2 The adhesive 112 shown is viewed along its length.

[0052] The adhesive 112 extends along the length direction to form a channel 1121, and a section of the connecting rod 111 near the first end is slidably received in the channel 1121 along its extension direction.

[0053] In the working state, the limiting structure 1111 abuts against the near-central end of the adhesive member 112 to prevent the connecting rod 111 from sliding relative to the adhesive member 112 toward the anchor pin 140. The anchor pin connection structure 1113 is connected to the anchor pin 140 to hold the anchor pin 140 in place. Thus, the degree of freedom of the connecting rod 111 relative to the adhesive member 112 toward the anchor pin 140 is restricted, preventing the molar 130 from moving in the mesial direction. Simultaneously, the degree of freedom of the connecting rod 111 relative to the adhesive member 112 in the direction opposite to the anchor pin 140 is open, allowing the molar 130 to move in the distal direction.

[0054] In one embodiment, the anchor bolt 140 is integral; for example, it may be integrally molded or obtained by welding or gluing together multiple components.

[0055] In one embodiment, the connecting rod 111 may be formed by bending a metal wire, such as steel wire. The rigidity of the connecting rod 111 is sufficient to prevent the molar 130 from moving in the mesial direction.

[0056] Because the above configuration allows the molar 130 to move distally, the distal force on the molar 130 will not be transmitted to the anchorage screw 140, thus reducing the risk of the anchorage screw 140 falling out.

[0057] exist Figure 2 In the illustrated embodiment, the anchor pin connection structure 1113 is a hook, and as can be understood from the teachings of this application, it can also be any other applicable structure.

[0058] Please refer to Figure 4A The diagram illustrates the anchor nail connection structure 1113a in another embodiment of this application, which is a collar.

[0059] Please refer to Figure 4B The diagram schematically illustrates a support pin connection structure 1113b in another embodiment of this application. It is a hook that includes a first segment near the support pin and a second segment away from the support pin. The second segment is larger than the diameter of the support pin to facilitate the connection of the support pin connection structure 1113b to the support pin. The first segment is slightly smaller than the diameter of the support pin, so that the support pin connection structure 1113b and the support pin form an interference fit in the working state.

[0060] In the above embodiments, the connection between the anchor bolt connection structure and the anchor bolt allows the connecting rod to rotate around the anchor bolt, so as to facilitate the installation of the anchor bolt connection device.

[0061] exist Figure 2 In the illustrated embodiment, the limiting structure 1111 is a plug. It can be formed with resin at the end of the connecting rod 111 after the support connection device 110 is assembled in place. As will be understood from the teachings of this application, it can also be any other suitable structure.

[0062] Please refer to Figure 5 The illustration schematically shows a limiting structure 1111a in another embodiment of this application, which is a hook formed by bending a connecting rod. Based on the teachings of this application, it can be understood that the limiting structure can also be other structures formed by bending a connecting rod, such as a ring or an L-shaped structure.

[0063] exist Figure 2 and Figure 3 In the illustrated embodiment, the adhesive 112 forms an elongated channel 1121, and a section of the connecting rod 111 is slidably received within the channel 1121 relative to the adhesive 112. As can be understood from the teachings of this application, in addition to the elongated channel, the adhesive can also employ any other suitable structure to cooperate with the limiting structure of the connecting rod to prevent the connecting rod from moving distally relative to the adhesive.

[0064] Please refer to Figure 6A and Figure 6BThe figures shown are a front view and a side view of the adhesive member 112a in another embodiment of this application. A ring 1121a is formed on the adhesive member 112a, a connecting rod passes through the ring 1121a, and a limiting structure of the connecting rod abuts against the ring 1121a to prevent the connecting rod from moving in the distal direction.

[0065] Please refer to Figure 7A and Figure 7B The figures shown are a front view and a side view of the adhesive member 112b in another embodiment of this application. Two hooks 1121b are formed on the adhesive member 112b, and an open groove 1123b is defined between them for the connecting rod to pass through. The cooperation between the hooks 1121b and the limiting structure of the connecting rod prevents the connecting rod from coming out of the groove 1123b and prevents the connecting rod from moving in the distal direction relative to the adhesive member 112b.

[0066] exist Figure 2 In the illustrated embodiment, link 111 is a straight rod. Following the guidance of this application, it can be understood that, depending on the relative positions of the support pins and adhesive members and specific requirements, the link can also be bent into other shapes, for example, as... Figure 8 The connecting rod 111b is shown.

[0067] The anchorage connection device of this application can be used not only to connect the anchorage screw and the distalized molar, but also to connect the anchorage screw and other teeth to prevent these teeth from moving in the mesial direction under the action of anchorage force during the distalization of the molar.

[0068] Please refer to Figure 9 This schematically illustrates yet another application example of the support connection device of this application.

[0069] In this example, the patient is wearing a shell-shaped orthodontic appliance 210 on their first dentition. The second molar 221 on one side of the first dentition has already been distalized, and the first molar 223 is currently being distalized. Due to the distalization of the second molar 223, the premolars 225 and 227 are subjected to mesial anchorage through the shell-shaped orthodontic appliance 210. To prevent further mesial movement of the premolars 225 and 227, anchorage needs to be provided.

[0070] An anchorage screw 230 is implanted between the second molar 221 and the first molar 223 in the jaw containing the first dentition. A first end of a first anchorage connector 240 is connected to the premolar 225, and a second end of the first anchorage connector 240, opposite the first end, is connected to the anchorage screw 230. The anchorage screw 230 provides anchorage to the premolar 225 through the connection of the first anchorage connector 240, so that the mesial anchorage force on the premolar 225 ultimately acts on the anchorage screw 230 through the first anchorage connector 240, thereby preventing the premolar 225 from moving mesially. Similarly, a first end and a second end of a second anchorage connector 250 are connected to the premolar 227 and the anchorage screw 230, respectively, to prevent the premolar 227 from moving mesially.

[0071] In the examples above, the anchorage connection structure is configured to pull the adhesive towards the anchorage screw. Following the guidance of this application, it can be understood that, depending on the relative position of the anchorage screw and the target tooth, and the direction of the anchorage force required for the target tooth, the anchorage connection structure can also be configured to push the adhesive away from the anchorage screw.

[0072] Please refer to Figure 10 The diagram schematically illustrates a bracing connection device 310 according to another embodiment of this application, which includes a connecting rod 311 and an adhesive member 313. A first end of the connecting rod 311 is slidably received in a channel formed in the adhesive member 313. A limiting structure 3111 is formed on the side of the adhesive member 313 near the bracing pin 320 to prevent the connecting rod 311 from moving relative to the adhesive member 313 away from the bracing pin 320. A bracing pin connection structure 3113 is formed at the second end of the connecting rod 311 opposite to the first end; this is a hook opening towards the bracing pin 320. This configuration prevents the teeth containing the adhesive member 313 from moving towards the bracing pin 320.

[0073] Please refer to Figure 11A The diagram schematically illustrates a support connection device 410a according to another embodiment of this application, which includes a connecting rod 411a and an adhesive member 413a. A first end of the connecting rod 411a is slidably received in a channel formed in the adhesive member 413a. A limiting structure 4111a is formed on the side of the adhesive member 413a away from the support nail to prevent the connecting rod 411a from moving away from the support nail relative to the adhesive member 413a. A support nail connection structure 4113a is formed at a second end of the connecting rod 411a opposite to the first end. A traction buckle 4131a is provided at the top of the adhesive member 413a for suspending a traction member to assist in applying force.

[0074] Please refer to Figure 11BThe diagram schematically illustrates a bracing connection device 410b according to another embodiment of this application, which includes a connecting rod 411b and an adhesive member 413b. A first end of the connecting rod 411b is slidably received in a channel formed in the adhesive member 413b. A limiting structure 4111b is formed on the side of the adhesive member 413b away from the bracing nail to prevent the connecting rod 411b from moving away from the bracing nail relative to the adhesive member 413b. A bracing nail connection structure 4113b is formed at a second end of the connecting rod 411b opposite to the first end. A groove 4131b is provided on the top of the adhesive member 413b for mounting the bowwire to assist in force application.

[0075] In the examples above, the anchorage connection device of this application is used to provide anchorage for distalized or non-distalized teeth in cases of molar distalization to prevent them from moving mesially. Based on the teachings of this application, it can be understood that the anchorage connection structure of this application can also be used in other applicable situations.

[0076] Although various aspects and embodiments of this application have been disclosed herein, other aspects and embodiments of this application will be apparent to those skilled in the art upon inspiration from this application. The various aspects and embodiments disclosed herein are for illustrative purposes only and not for limiting purposes. The scope and spirit of this application are determined solely by the appended claims.

[0077] Similarly, the diagrams may illustrate exemplary architectures or other configurations of the disclosed methods and systems, which aid in understanding the features and functions that may be included in the disclosed methods and systems. The claims are not limited to the exemplary architectures or configurations shown, and the desired features may be implemented with various alternative architectures and configurations. Furthermore, the order of the blocks given herein with respect to flowcharts, functional descriptions, and method claims should not be limited to various embodiments implemented in the same order to perform the said functions, unless explicitly indicated in the context.

[0078] Unless otherwise expressly stated, the terms and phrases used herein, and their variations thereof, should be interpreted as open-ended rather than restrictive. In some instances, the appearance of extended words and phrases such as “one or more,” “at least,” “but not limited to,” or other similar expressions should not be construed as an intention or necessity to indicate a narrower scope in examples where such extended expressions might not exist.

Claims

1. A anchorage connection device for connecting a first tooth of a patient and an anchorage screw implanted in the jaw in which the first tooth of the patient is located, characterized in that, The anchorage connecting device comprises a connecting rod and an adhesive member, in a working state, the adhesive member is fixed to the surface of the first tooth of the patient, the connecting rod is slidably mounted to the adhesive member by a first segment of a first end of the connecting rod in an extending direction of the first segment, a second end of the connecting rod is connected with the anchorage pin, the first end and the second end are opposite ends of the connecting rod, a limiting structure is arranged on the first segment of the connecting rod, the limiting structure cooperates with the adhesive member, so that the connecting rod can slide relative to the adhesive member in a first direction of extension of the connecting rod, while the connecting rod is prevented from sliding relative to the adhesive member in a second direction, the first direction and the second direction are opposite directions.

2. A support connection device according to claim 1, wherein The first tooth is a molar tooth that has been distally moved or a molar tooth that has not been distally moved, and the anchorage connecting device is used to prevent the first tooth from moving in a mesial direction.

3. A support connection device according to claim 2, wherein The anchorage connecting device is used in cooperation with a shell-shaped dental appliance for orthodontic treatment.

4. A support connection device according to claim 2, wherein The connecting rod is formed by bending a wire.

5. A support connection device according to claim 4, wherein The rigidity of the connecting rod is sufficient to prevent the first tooth from moving in a mesial direction.

6. A support connection device according to claim 1, wherein The adhesive member is used to adhere to the buccal surface of the first tooth.

7. A support connection device according to claim 1, wherein The connection of the second end of the connecting rod with the anchorage pin allows the connecting rod to rotate around the anchorage pin.

8. A support connection device according to claim 1, wherein The adhesive member is formed integrally.

9. A support connection device as claimed in claim 1, characterized in that The adhesive member blocks the limiting structure to prevent the connecting rod from sliding relative to the adhesive member in the second direction.

10. A support connection device according to claim 9, wherein The adhesive member forms a channel, and the first segment of the connecting rod is inserted into the channel.

11. A support connection device according to claim 10, wherein The limiting structure cannot pass through the channel to prevent the connecting rod from sliding relative to the adhesive member in the second direction.

12. A support connection device according to claim 11, wherein The limiting structure is a plug formed by resin on the connecting rod.

13. A support connection device as claimed in claim 1, characterized in that The second direction forms an acute angle with the mesial direction.

14. A support connection device as claimed in claim 1, characterized in that The anchorage pin is located on the distal side of the first tooth.

15. A support connection device as claimed in claim 1, characterized in that A functional accessory is arranged on the top of the adhesive member.

16. A support connection device according to claim 15, wherein The functional accessory is a traction buckle or a bracket.

17. A bracket connection device, characterized in that It comprises a connecting rod and an adhesive member, the connecting rod is configured to be slidably mounted to the adhesive member by a first segment of a first end of the connecting rod, a limiting structure is arranged on the first segment, when the adhesive member and the limiting structure are in a cooperating position, the connecting rod can slide relative to the adhesive member in a first direction of extension of the connecting rod, the adhesive member blocks the limiting structure to prevent the connecting rod from sliding relative to the adhesive member in a second direction of extension of the connecting rod, the first direction and the second direction are opposite directions, a second end of the connecting rod forms an anchorage pin connecting portion, the first end and the second end are opposite ends.

18. A support connection device according to claim 17, wherein The limiting structure is a plug formed by resin on the connecting rod.

19. A support connection device as claimed in claim 17, characterised in that The limiting structure is formed by bending the connecting rod.

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