A guide assembly for anchorage nail implantation

Abstract

The present invention relates to the field of oral support technology, and specifically to a guide assembly for support nail implantation. It comprises a guide and an support nail handle. The guide comprises a retaining portion, a supporting portion and a guiding portion. The retaining portion is a jaw pad design. The supporting portion is fixedly connected to the retaining portion. The supporting portion has an installation opening and an observation opening. The installation opening extends from the side of the support portion away from the retaining portion to the side thereof close to the retaining portion, and the observation opening extends from the side of the support portion close to the outside of the oral cavity to the inner wall of the installation opening. The guiding portion is fixedly connected to the side of the support portion away from the retaining portion. The guiding portion is provided with a clearance hole for the front end rod body of the support nail handle to pass through. The aperture of the clearance hole is adapted to the outer diameter of the front end rod body of the support nail handle, and the clearance hole is opened toward the installation opening. It can effectively improve the implantation accuracy of the support nail, reduce the risk of damage to the surrounding tissue structure, and contribute to the promotion and application of support nails in orthodontic clinics.

Description

Technical Field

[0001] The present invention relates to the technical field of oral anchorage, and in particular to a guide assembly for implanting an anchorage nail. Background Art

[0002] Anchorage control is a very important part of orthodontic treatment. In the past, complex cases required the use of extraoral devices such as extraoral bows and J hooks. Extraoral devices not only rely on the patient's high compliance, but also have poor comfort and aesthetic effects. Therefore, it is often difficult for patients to wear them completely according to the doctor's instructions, and thus cannot achieve the ideal clinical treatment effect. Anchorage nails are widely used in orthodontic clinical treatment due to their advantages such as flexible implantation site, convenient force application, comfort, and beauty. At present, anchorage nails have been widely used in many orthodontic clinical aspects such as vertical anchorage control, such as lowering molars and anterior teeth; sagittal anchorage control, such as pushing molars and retracting anterior teeth in a large range; and transverse anchorage control, such as adult bony arch expansion, and have achieved good clinical treatment results. Therefore, anchorage nails have become a very important anchorage control device in orthodontic clinical practice.

[0003] At present, orthodontists mostly implant anchorage pins based on their clinical experience and are unable to precisely control the implantation tract of the anchorage pins, which poses a risk of damaging surrounding anatomical structures. Therefore, many inexperienced orthodontists are unable to independently complete the implantation of anchorage pins, limiting the promotion and application of anchorage pins in orthodontic clinics.

[0004] In view of this, this application is hereby filed. Summary of the Invention

[0005] The purpose of the present invention is to provide a guide assembly for the implantation of anchorage nails, which has a simple structure and is easy to use. It can effectively improve the implantation accuracy of anchorage nails and reduce the risk of damage to surrounding tissue structures. It not only improves the efficiency of anchorage nail implantation, but also improves the process safety and reduces the experience requirements for the operator, which is conducive to the promotion and application of anchorage nails in orthodontic clinical practice.

[0006] The embodiment of the present invention is achieved as follows:

[0007] A guide assembly for anchorage nail implantation comprises a guide member and an anchorage nail handle. The guide member comprises a retaining portion, a supporting portion and a guide portion.

[0008] The retaining part is designed as a jaw pad.

[0009] The support portion is fixedly connected to the retaining portion. The support portion has a mounting opening and an observation opening, wherein the mounting opening extends from a side of the support portion away from the retaining portion to a side thereof close to the retaining portion, and the observation opening extends from a side of the support portion close to the outside of the oral cavity to an inner wall of the mounting opening.

[0010] The guide portion is fixedly connected to a side of the support portion away from the retaining portion and is disposed at the mouth of the mounting opening, extending from one edge of the mounting opening to the other edge of the mounting opening. The guide portion defines a clearance hole for the front end of the support nail handle to pass through. The diameter of the clearance hole matches the outer diameter of the front end of the support nail handle, and the clearance hole is disposed toward the mounting opening.

[0011] The support portion is used to open the patient's mouth so that the installation port and the observation port can expose the implantation site and the clearance through hole.

[0012] The retaining portion, the supporting portion and the guiding portion are all made of hard materials.

[0013] Furthermore, the observation port extends along the length direction of the installation port, and the observation port extends to a side surface of the support portion away from the fixing portion.

[0014] Furthermore, the retaining portion is arranged near the bottom end of the supporting portion. One end of the guiding portion is fixedly connected to the top end of the supporting portion, and the other end is fixedly connected to the bottom end of the supporting portion.

[0015] Furthermore, the guide is formed by 3D printing.

[0016] Furthermore, the guide assembly further comprises a fine-tuning mechanism, which comprises a positioning cylinder, a first positioning member and a second positioning member.

[0017] The outer diameter of the positioning cylinder matches the aperture of the clearance hole. One end of the positioning cylinder features a stop flange, formed by a protrusion from the outer wall of the positioning cylinder. A positioning ball is housed within the positioning cylinder, embedded within the inner wall of the positioning cylinder and universally rotatably engaged with the positioning cylinder. The central axis of the positioning cylinder passes through the center of the positioning ball. The positioning ball has a radially extending mating through hole, the diameter of which is slightly larger than the outer diameter of the front end of the anchor nail handle.

[0018] The first positioning member and the second positioning member are both annular. The first positioning member is threadedly engaged with the outer wall of the positioning cylinder to detachably mount the positioning cylinder on the guide portion. The second positioning member is threadedly engaged with the inner wall of the positioning cylinder to limit the rotation of the positioning ball.

[0019] Furthermore, the positioning cylinder is provided with a guide groove, which is formed by a depression in the inner wall of the positioning cylinder and extends along the axial direction of the positioning cylinder. The guide groove is located on the side of the positioning ball away from the stop flange. One end of the guide groove passes through the end face of the positioning cylinder away from the stop flange, and the other end extends to the positioning ball.

[0020] The positioning tube also houses a limit ring, whose outer diameter matches the inner diameter of the positioning tube. A guide block is fixedly mounted on the outer side of the limit ring, slidably engaging with the guide groove. The limit ring slidably engages with the positioning tube along the axial direction of the positioning tube. The limit ring and the positioning tube are fixedly engaged along the circumference of the positioning tube.

[0021] The second positioning member is threadedly matched with the inner wall of the positioning cylinder to make the limiting ring abut against the positioning ball so as to limit the rotation of the positioning ball.

[0022] Furthermore, the guiding assembly further includes a laser pen, and the outer diameter of the laser pen is adapted to the aperture of the matching through hole.

[0023] Furthermore, the guide assembly also includes a smoked glass plate, which is adapted to a side opening of the installation opening close to the retaining portion.

[0024] Furthermore, the retaining portion, the supporting portion and the guiding portion are all made of resin material.

[0025] Furthermore, the guide portion is in the shape of a thin strip.

[0026] The beneficial effects of the technical solution of the embodiment of the present invention include:

[0027] During use of the guide assembly for support nail implantation provided by an embodiment of the present invention, the patient bites the retaining portion tightly with the upper and lower jaws to fix the guide. The support portion is located on the outside of the teeth and can open the patient's mouth so that the implantation site is exposed through the installation port and the observation port. The implantation site can be seen through the installation port and the observation port. At the same time, since the patient's mouth is opened by the support portion, the clearance hole of the guide portion is also exposed. When the support nail handle is used for support nail implantation, the front end of the support nail handle is passed through the clearance hole of the guide portion, and the guide portion can be used to accurately guide the implantation direction of the support nail handle, thereby greatly improving the implantation accuracy.

[0028] In addition, since the installation port and observation port can fully expose the implantation area, during the implantation process, the doctor can monitor and observe the implantation site and implantation process throughout, ensuring the accuracy and safety of the implantation. This also makes it easier to quickly discover problems during the operation and to stop and adjust the execution plan in time.

[0029] In general, the guide assembly for anchorage nail implantation provided by the embodiment of the present invention has a simple structure and is easy to use. It can effectively improve the implantation accuracy of the anchorage nail and reduce the risk of damage to the surrounding tissue structure. It not only improves the efficiency of anchorage nail implantation, but also improves the process safety and reduces the experience requirements for the operator, which is conducive to the promotion and application of anchorage nails in orthodontic clinical practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic structural diagram of a guide member of a guide assembly provided by an embodiment of the present invention from a first perspective;

[0032] Figure 2 A schematic structural diagram of a guide member of a guide assembly provided by an embodiment of the present invention from a second perspective;

[0033] Figure 3 A schematic structural diagram of a guide member of a guide assembly provided by an embodiment of the present invention from a third perspective;

[0034] Figure 4 A schematic structural diagram of a guide member of a guide assembly provided by an embodiment of the present invention from a fourth perspective;

[0035] Figure 5 A schematic diagram of the guide assembly provided by an embodiment of the present invention when used to implant an anchorage nail;

[0036] Figure 6 A schematic diagram of a first perspective of a guide member of a guide assembly provided by an embodiment of the present invention engaging with a patient's oral cavity;

[0037] Figure 7 A schematic diagram of a second perspective of the guide member of the guide assembly provided by an embodiment of the present invention engaging with the patient's oral cavity;

[0038] Figure 8 A schematic diagram of a guide member of a guide assembly provided by an embodiment of the present invention engaged with a patient's oral cavity from a third perspective;

[0039] Figure 9 A schematic diagram of the cooperation between the guide member and the fine-tuning mechanism of the guide assembly provided in an embodiment of the present invention;

[0040] Figure 10 A schematic structural diagram of a fine-tuning mechanism of a guide assembly provided in an embodiment of the present invention;

[0041] Figure 11 A schematic structural diagram of the end portion of the positioning cylinder of the fine-adjustment mechanism of the guide assembly provided in an embodiment of the present invention;

[0042] Figure 12 A schematic diagram of the fine-adjustment mechanism of the guide assembly provided in an embodiment of the present invention adjusting the implantation direction and implantation position outside the oral cavity;

[0043] Figure 13 A schematic diagram of the fine-adjustment mechanism of the guide assembly provided in an embodiment of the present invention adjusting the implantation direction and implantation position in the oral cavity;

[0044] Figure 14 A schematic diagram of the external structure of a dental auxiliary tool of a guide assembly provided in an embodiment of the present invention;

[0045] Figure 15 A schematic diagram of the internal structure of a dental auxiliary tool of a guide assembly provided in an embodiment of the present invention;

[0046] Figure 16 A schematic diagram of the external structure of a driving wheel assembly of a dental auxiliary tool of a guide assembly provided in an embodiment of the present invention;

[0047] Figure 17 A schematic diagram of the internal structure of a driving wheel assembly of a dental auxiliary tool of a guide assembly provided in an embodiment of the present invention;

[0048] Figure 18 A schematic diagram of a timing belt of a dental auxiliary tool of a guide assembly provided by an embodiment of the present invention in an unlocked state;

[0049] Figure 19 A schematic diagram of a dental auxiliary tool with a guide assembly provided in an embodiment of the present invention, wherein the synchronous belt is in a locked state.

[0050] Description of reference numerals:

[0051] Guide 100; retaining portion 110; support portion 120; mounting opening 121; observation opening 122; guide portion 130; clearance through hole 131;

[0052] Anchorage nail handle 200;

[0053] Positioning cylinder 310; stop flange 311; positioning ball 312; matching through hole 313; guide groove 314; limiting ring 315; guide block 316; first positioning member 320; second positioning member 330; laser pen 340; smoked glass plate 350;

[0054] Dental auxiliary tool 400; housing 500; accommodating through hole 510; rotating ring 520; first transmission wheel 530; synchronous belt 540; second transmission wheel 550; driving wheel assembly 600; outer ring body 610; center wheel 620; mounting notch 621; matching block 622; elastic member 623; toggle rod 630; arc-shaped piece 640; trigger block 650; arc-shaped slide groove 660; locking assembly 700; first locking block 710; second locking block 720; locking column 730; first locking rod 740; first expanded diameter section 741; second locking rod 750; second expanded diameter section 751; first driving member 760; second driving member 770; circular ring body 771; straight rod body 772. DETAILED DESCRIPTION

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0056] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0057] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0058] The terms "first", "second", "third", etc. are only used for distinction and description and should not be understood as indicating or implying relative importance.

[0059] Furthermore, the terms "parallel" and "perpendicular" do not necessarily mean that the components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that the direction is more parallel than "perpendicular," not that the structure must be completely parallel, but rather that it can be slightly tilted.

[0060] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0061] Example

[0062] Please refer to Figures 1 to 5 This embodiment provides a guide assembly for anchorage nail implantation, and the guide assembly includes: a guide member 100 and an anchorage nail handle 200.

[0063] The guide member 100 includes a retaining portion 110 , a supporting portion 120 and a guiding portion 130 .

[0064] The retaining portion 110 is designed as a jaw pad.

[0065] The support portion 120 is fixedly connected to the retaining portion 110. The support portion 120 has an installation opening 121 and an observation opening 122. The installation opening 121 extends from the side of the support portion 120 away from the retaining portion 110 to the side closer to the retaining portion 110. The observation opening 122 extends from the side of the support portion 120 closer to the oral cavity to the inner wall of the installation opening 121. It should be noted that the "side closer to the oral cavity" here refers to the position of the guide member 100 after it is placed in the patient's mouth and correctly positioned.

[0066] The guide portion 130 is fixedly connected to a side of the support portion 120 away from the retaining portion 110. The guide portion 130 is disposed at the mouth of the mounting opening 121, extending from one side edge of the mounting opening 121 to the other side edge of the mounting opening 121. The guide portion 130 defines a clearance hole 131 for the front end rod of the anchor nail handle 200 to pass through. The aperture of the clearance hole 131 matches the outer diameter of the front end rod of the anchor nail handle 200, and the clearance hole 131 is opened toward the mounting opening 121.

[0067] The retaining portion 110 , the supporting portion 120 and the guiding portion 130 are all made of hard materials.

[0068] During use, the guide member 100 can be fixed by having the patient bite the retaining portion 110 tightly with his upper and lower jaws. Figures 5 to 8As shown. The support portion 120 is located outside the teeth and can prop open the patient's mouth, exposing the implant site through the mounting port 121 and the observation port 122. The implant site can be seen through the mounting port 121 and the observation port 122. At the same time, because the patient's mouth is propped open by the support portion 120, the clearance hole 131 of the guide portion 130 is also exposed. When using the anchor nail handle 200 for anchor nail implantation, the front end of the anchor nail handle 200 is passed through the clearance hole 131 of the guide portion 130. The guide portion 130 can then accurately guide the implantation direction of the anchor nail handle 200, greatly improving implantation accuracy.

[0069] In addition, since the installation port 121 and the observation port 122 can fully expose the implantation area, during the implantation process, the doctor can monitor and observe the implantation site and the implantation process throughout, ensuring the accuracy and safety of the implantation. This also makes it easier to quickly discover problems during the operation and to stop and adjust the execution plan in time.

[0070] In general, the guide assembly used for anchorage nail implantation has a simple structure and is easy to use. It can effectively improve the implantation accuracy of anchorage nails and reduce the risk of damage to surrounding tissue structures. It not only improves the efficiency of anchorage nail implantation, but also improves the process safety and reduces the experience requirements for the operator, which is conducive to the promotion and application of anchorage nails in orthodontic clinical practice.

[0071] It should be noted that the production process of the guide 100 can be adopted but not limited to the following methods: perform a dental CBCT scan and an oral soft and hard tissue scan on the patient, import the scan data into the Organic Dental ImPlant software, and select four points for matching (for example, the cusps of the bilateral canines and the mesio-buccal cusps of the bilateral first molars). Select the anchor pin, and use the Organic Dental ImPlant software to design the anchor pin implantation site and direction on the matched three-dimensional data. The implantation point is located mesiodistal to the middle of the adjacent tooth roots, vertically at the membrane-gingival junction, and the implantation direction is approximately 60°-90° to the long axis of the adjacent tooth. Import the above data into the EXO CAD software to design the guide 100. The retaining part 110 covers a total of three crowns in front and behind the implantation area, and the supporting part 120 extends upward along the mucosa on both sides of the implantation area to form a supporting surface above the membrane-gingival junction, which serves to stretch the tissue to expose the implantation area. After the model of the guide 100 is designed, the guide 100 is manufactured by 3D printing. By manufacturing the guide 100 in this way, the compatibility between the guide 100 and the patient can be guaranteed, and under the guidance of the guide part 130, the accuracy of the implantation angle and implantation position can be fully guaranteed.

[0072] The above-mentioned manufacturing method of the guide member 100 is only an example and is not limited thereto.

[0073] Specifically, in this embodiment, the observation port 122 extends along the length of the mounting port 121, that is, the observation port 122 extends toward the side of the support portion 120 away from the retaining portion 110, and the observation port 122 extends to the surface of the support portion 120 away from the retaining portion 110. This effectively widens the observation port 122, making it easier to monitor the entire implantation process, while also reducing the material used in the guide 100.

[0074] The retaining portion 110 is disposed near the bottom end of the supporting portion 120. One end of the guiding portion 130 is fixedly connected to the top end of the supporting portion 120, and the other end is fixedly connected to the bottom end of the supporting portion 120. The guiding portion 130 is in the shape of a thin strip.

[0075] The retaining portion 110 , the supporting portion 120 and the guiding portion 130 are all made of resin material.

[0076] In other embodiments of the present invention, a fine-tuning mechanism may be provided to further expand the functionality of the guide assembly. Figures 9 to 13 As shown, the guide assembly further includes a fine-tuning mechanism. The fine-tuning structure includes a positioning cylinder 310 , a first positioning member 320 and a second positioning member 330 .

[0077] The outer diameter of the positioning cylinder 310 is adapted to the aperture of the clearance hole 131 . One end of the positioning cylinder 310 has a stop flange 311 . The stop flange 311 is formed by protruding from the outer side wall of the positioning cylinder 310 .

[0078] The positioning cylinder 310 contains a positioning ball 312, which is embedded in the inner wall of the positioning cylinder 310 and can be universally rotated with the positioning cylinder 310. The central axis of the positioning cylinder 310 passes through the center of the positioning ball 312. The positioning ball 312 has a matching through hole 313 arranged along its radial direction. It should be noted that at this time, due to the presence of the positioning ball 312, the outer diameter of the front end of the support nail handle 200 needs to be set to match the aperture of the matching through hole 313, so that the front end of the support nail handle 200 can smoothly pass through the positioning ball 312 and move under the guidance of the positioning ball 312.

[0079] The first positioning member 320 and the second positioning member 330 are both ring-shaped.

[0080] When installing the fine-tuning structure, first, the positioning cylinder 310 is engaged with the clearance hole 131 of the guide portion 130 from the end away from the support portion 120, and the positioning cylinder 310 is passed through the clearance hole 131 until the stop flange 311 is in contact with the guide portion 130. The first positioning member 320 is threadedly engaged with the outer wall of the positioning cylinder 310 and is engaged with the end of the positioning cylinder 310 away from the stop flange 311, so as to detachably secure the positioning cylinder 310 to the guide portion 130. At this point, the front end of the support nail handle 200 can be inserted into the positioning cylinder 310, and the front end of the support nail handle 200 can be passed through the positioning ball 312. In this way, it is possible to first check whether the direction of travel of the front end of the support nail handle 200 accurately corresponds to the implantation area. If not, the angle of the support nail handle 200 can be fine-tuned with the support of the positioning ball 312. When the angle of the support nail handle 200 is accurately adjusted, the second positioning member 330 is installed on the end of the positioning tube 310 away from the stop flange 311. The second positioning member 330 cooperates with the inner wall thread of the positioning tube 310. Tightening the second positioning member 330 can support the positioning ball 312 to limit the rotation of the positioning ball 312, thereby locking the implantation angle of the support nail handle 200.

[0081] The above design further expands the flexibility of the guide assembly and the tolerance of design errors, ensuring the accuracy of anchor pin implantation. In addition, the installation and adjustment of the fine-tuning mechanism utilizes the space reserved for the observation port 122 and the installation port 121, without causing additional space occupation, making it simple, convenient, and adaptable.

[0082] Specifically in this embodiment, the positioning cylinder 310 is provided with a guide groove 314, which is formed by a depression in the inner wall of the positioning cylinder 310 and extends along the axial direction of the positioning cylinder 310. The guide groove 314 is located on the side of the positioning ball 312 away from the stop flange 311. One end of the guide groove 314 passes through the end face of the positioning cylinder 310 away from the stop flange 311, and the other end extends to the positioning ball 312.

[0083] A limit ring 315 is also housed within the positioning cylinder 310. The outer diameter of the limit ring 315 matches the inner diameter of the positioning cylinder 310. A guide block 316 is fixedly mounted on the outer side of the limit ring 315, which slidably engages with the guide groove 314. The limit ring 315 slidably engages with the positioning cylinder 310 along the axial direction of the positioning cylinder 310. The limit ring 315 and the positioning cylinder 310 are fixedly engaged along the circumference of the positioning cylinder 310. The limit ring 315 and the positioning cylinder 310 are coaxially arranged.

[0084] The second positioning member 330 is engaged with the inner wall thread of the positioning tube 310. When the second positioning member 330 is engaged with the positioning tube 310, it can push the limiting ring 315 to move, thereby making the limiting ring 315 abut against the positioning ball 312 to limit the rotation of the positioning ball 312.

[0085] With this design, the limiting ring 315 can prevent the positioning ball 312 from accidentally rotating when the second positioning member 330 approaches the positioning ball 312. At the same time, the force exerted by the limiting ring 315 on the positioning ball 312 is evenly distributed along its circumference, which can effectively ensure the stability of the positioning ball 312.

[0086] To facilitate pre-adjustment of the angle, the guide assembly also includes a laser pointer 340, the outer diameter of which matches the diameter of the mating through hole 313 of the positioning ball 312. The guide assembly also includes a smoked glass plate 350, which fits over the side of the mounting opening 121 near the retaining portion 110.

[0087] During specific use, the implantation angle can be adjusted in vitro before implantation begins. The specific operation can be: cover the smoked glass plate 350 on the side of the mounting port 121 close to the retaining portion 110, install the positioning cylinder 310 to the guide portion 130 and fix it through the first positioning member 320, pass the laser pen 340 through the matching through hole 313 of the positioning ball 312, turn on the laser pen 340, and preliminarily judge whether the implantation angle is correct based on the position of the laser point of the laser emitted by the laser pen 340 on the smoked glass plate 350. If it is not correct, the angle of the positioning ball 312 can be adjusted by the laser pen 340 first. After the adjustment is accurate, the angle of the positioning ball 312 can be locked by the second positioning member 330. In this way, the early correction of the implantation angle can be completed. When the support nail is formally implanted, the support nail handle 200 can be used to first confirm whether the implantation angle is correct. Generally, no adjustment is required. If there is still a deviation, the implantation angle and position can be adjusted with the help of the support nail handle 200.

[0088] In this way, the implantation position and implantation angle can be confirmed in advance, which greatly reduces the probability of angle adjustment in the patient's mouth, helps to reduce the patient's discomfort and improve the efficiency of the implantation operation.

[0089] It should be noted that the smoked glass plate 350 can also be replaced by other objects, such as a colored transparent plastic sheet, a dark transparent film, etc., and is not limited thereto.

[0090] It is understood that the guide member 100 may be placed in the patient's mouth for positioning before the laser pen 340 is used to adjust the implantation angle and position.

[0091] It should be noted that the specific structure of the fine-tuning mechanism is not limited thereto.

[0092] In some other embodiments of the present invention, the guide assembly may further include a dentist's auxiliary tool 400 for more convenient operation of the fine-tuning mechanism. Figures 14 to 19 The dental auxiliary tool 400 includes a housing 500 , a rotating ring 520 , a first transmission wheel 530 , a second transmission wheel 550 and a driving wheel assembly 600 .

[0093] The housing 500 is in the shape of an elongated strip, and a receiving hole 510 is defined at one end of the housing 500. The receiving hole 510 penetrates the housing 500 along its thickness, and the inner cavity of the housing 500 extends to the inner wall of the receiving hole 510. The housing 500 may be formed by joining two half-shells 500, but is not limited thereto.

[0094] The rotating ring 520 can be rotatably engaged in the accommodating through hole 510. The position of the rotating ring 520 in the accommodating through hole 510 corresponds to the position of the inner cavity of the shell 500 in the accommodating through hole 510, and the outer wall of the rotating ring 520 extends into the inner cavity of the shell 500.

[0095] In this embodiment, the ends of the first and second positioning members 320 and 330 that are away from the positioning cylinder 310 are each configured as a polygonal structure to facilitate rotation of the first and second positioning members 320 and 330. The inner wall of the rotating ring 520 is configured to match the polygonal structure of the ends of the first and second positioning members 320 and 330 that are away from the positioning cylinder 310. This allows the rotating ring 520 to be used to rotate the first and second positioning members 320 and 330, making installation of the first and second positioning members 320 and 330 more convenient.

[0096] The first transmission wheel 530, the second transmission wheel 550 and the driving wheel assembly 600 are all disposed in the inner cavity of the housing 500. The first transmission wheel 530 and the rotating ring 520 are coupled to each other via a synchronous belt 540. The second transmission wheel 550 is meshed with the first transmission wheel 530.

[0097] The driving wheel assembly 600 includes an outer ring 610 , a center wheel 620 and a toggle lever 630 .

[0098] The outer ring body 610 has an outer ring gear and an inner ring gear. The outer ring gear of the outer ring body 610 meshes with the second transmission gear 550. A center wheel 620 is housed within the outer ring body 610. Center wheel 620 has an inner cavity, and the rotating shaft of center wheel 620 is fixedly connected to the outer ring body 610 and extends into the inner cavity. A mounting notch 621 is defined in the annular wall of center wheel 620, extending along the circumference of center wheel 620. Mounting notch 621 accommodates a mating block 622, which matches the shape and size of mounting notch 621. One end of mating block 622 is hinged to the inner wall of one side of mounting notch 621, and the rotation axis of mating block 622 is parallel to the rotation axis of center wheel 620.

[0099] An elastic member 623 is in contact between the mating block 622 and the rotating shaft of the center wheel 620. In the natural state, under the elastic force of the elastic member 623, the mating block 622 is engaged with the installation notch 621 to close the installation notch 621. Pressing the mating block 622 from the outside of the center wheel 620 can cause the mating block 622 to compress the elastic member 623 and rotate toward the inner cavity of the center wheel 620.

[0100] The outer side of the mating block 622 is equipped with teeth that mate with the inner gear ring of the outer ring body 610. The outer ring body 610, the center wheel 620, the mating block 622, and the elastic member 623 form a ratchet structure. The toggle lever 630 is fixedly connected to the rotating shaft of the center wheel 620, and the toggle lever 630 can drive the center wheel 620 to rotate. With reference to the mounting notch 621, the end where the mounting notch 621 and the mating block 622 are hinged is the first end, and the end of the mounting notch 621 where the free end of the mating block 622 is located is the second end. Along the circumference of the center wheel 620, and in the direction from the first end to the second end, the center wheel 620 can drive the outer ring body 610 to rotate. As center wheel 620 rotates in a direction from its second end to its first end along its circumference, the engaging block 622, under the action of the inner ring gear of outer ring body 610, compresses the elastic member 623, causing center wheel 620 to rotate within it, thereby preventing outer ring body 610 from rotating. This achieves unidirectional drive of outer ring body 610 from center wheel 620. Furthermore, as center wheel 620 rotates in a direction from its first end to its second end along its circumference, the toggle lever 630 gradually approaches housing 500 during rotation.

[0101] During use, the rotating ring 520 of the dental auxiliary tool 400 is used to cooperate with the first positioning member 320 and the second positioning member 330, and then the shell 500 is held and the toggle rod 630 is pressed toward the shell 500, so that the toggle rod 630 drives the center wheel 620 to rotate, thereby driving the outer ring body 610 to rotate, and then the first transmission wheel 530 is driven by the second transmission wheel 550, and the first transmission wheel 530 drives the rotating ring 520 to rotate through the synchronous belt 540, thereby tightening the first positioning member 320 and the second positioning member 330 on the positioning cylinder 310.

[0102] Different from conventional tightening tools, the gripping portion of the housing 500 of the dental auxiliary tool 400 is not aligned with the rotation axis of the rotating ring 520 , which can better provide a space for avoidance and facilitate operation.

[0103] Specifically, in this embodiment, the toggle lever 630 is fixedly connected to a curved piece 640. The center of the circle corresponding to the curved piece 640 is located on the rotation axis of the toggle lever 630. An arcuate slot 660 is provided within the housing 500 to mate with the curved piece 640. The curved piece 640 slidably engages with the arcuate slot 660. When the toggle lever 630 is pressed, the toggle lever 630 rotates, and the curved piece 640 also slides along the arcuate slot 660, effectively improving the movement stability of the toggle lever 630. One end of the arcuate slot 660 extends through the outer wall of the housing 500. One end of the arcuate piece 640 is fixedly connected to the rod body of the toggle lever 630, and the other end engages within the arcuate slot 660.

[0104] In order to ensure that the rotating ring 520 can more accurately tighten the first positioning member 320 and the second positioning member 330, a locking assembly 700 is also provided in the shell 500. The locking assembly 700 includes a first locking block 710, a second locking block 720, a locking column 730, a first locking rod 740, a second locking rod 750, a first driving member 760 and a second driving member 770.

[0105] The first locking block 710 is arranged near the outer side of the synchronous belt 540 and contacts the synchronous belt 540. The locking column 730 is arranged on the inner side of the synchronous belt 540 and can be slidably fitted in the shell 500. The second locking block 720 is installed at one end of the locking column 730 near the synchronous belt 540.

[0106] The first locking rod 740 is disposed perpendicular to the locking post 730 and is slidably fitted in the housing 500. The second locking rod 750 is disposed perpendicular to the first locking rod 740 and is slidably fitted in the housing 500. The first locking rod 740 has a first enlarged diameter section 741, and the second locking rod 750 has a second enlarged diameter section 751.

[0107] The first driving member 760 is disposed near the rear end of the arcuate chute 660, and the second driving member 770 is disposed near the front end of the arcuate chute 660. The front end of the arcuate chute 660 refers to the end of the arcuate chute 660 that extends through the outer wall of the housing 500, i.e., the end of the arcuate chute 660 that is closer to the outside of the housing 500, while the rear end of the arcuate chute 660 refers to the end of the arcuate chute 660 that is located inside the housing 500.

[0108] The curved piece 640 is fixedly connected to a trigger block 650. When the curved piece 640 moves to the rear end of the curved slot 660, the trigger block 650 pushes the first driving member 760, causing the first driving member 760 to push the first locking rod 740. The first expanded diameter section 741 pushes the second locking rod 750, and the second expanded diameter section 751 pushes the locking post 730 toward the synchronous belt 540, causing the first locking block 710 and the second locking block 720 to clamp the synchronous belt 540. When the curved piece 640 moves to the front end of the curved slot 660, the trigger block 650 pushes the second driving member 770, causing the second driving member 770 to push the first locking rod 740. The first expanded diameter section 741 separates from the second locking rod 750, and the second expanded diameter section 751 separates from the locking post 730. The second locking rod 750, the first locking rod 740, and the locking post 730 return to their original positions, separating the second locking block 720 from the synchronous belt 540.

[0109] Specifically, the first transmission wheel 530 is disposed at one end of the housing 500 away from the receiving through hole 510, and the toggle lever 630 is disposed on one side of the housing 500. The locking post 730 is disposed along the width direction of the housing 500, the first locking lever 740 is disposed along the length direction of the housing 500, and the second locking lever 750 is disposed along the width direction of the housing 500.

[0110] The first driving member 760 is arc-shaped, while the second driving member 770 comprises a circular ring 771 and a straight rod 772. The first driving member 760 is slidably engaged within the housing 500, with the sliding direction of the first driving member 760 matching its corresponding circumference. The first driving member 760 engages with the second locking rod 750. The circular ring 771 is rotatably mounted within the housing 500 and engages with the second locking rod 750. The straight rod 772 is slidably mounted within the housing 500 and engages with the circular ring 771. Both the first driving member 760 and the straight rod 772 extend toward the arcuate slot 660.

[0111] The center wheel 620 is equipped with a torsion spring (not shown) for driving its return, thereby driving the toggle lever 630 away from the housing 500 and returning the arc-shaped piece 640 from the tail end of the arc-shaped slot 660 to the head end of the arc-shaped slot 660. This facilitates the next pressing operation on the toggle lever 630. Because the driving wheel assembly 600 is a ratchet structure, the toggle lever 630 does not drive the outer ring body 610 during the return process, and thus does not affect the rotating ring 520.

[0112] Both the locking column 730 and the first locking rod 740 are reset by a return spring. The center of the first locking rod 740 is a rectangular ring, which is used to make way for the rotating shafts of the first transmission wheel 530 and the second transmission wheel 550. The surface of the first locking block 710 is smooth, and the second locking block 720 is a rubber block.

[0113] Through the above design, when the toggle lever 630 is fully depressed so that the arc-shaped piece 640 is located at the tail end of the arc-shaped slot 660, the trigger block 650 pushes the first driving member 760, which in turn drives the second locking rod 750 to move axially. As the second locking rod 750 moves, the second expanded diameter section 751 of the second locking rod 750 contacts the end of the first locking rod 740, pushing the first locking rod 740 to move axially. When the first locking rod 740 moves, the first expanded diameter section 741 contacts the end of the locking post 730, pushing the locking post 730 toward the side where the synchronous belt 540 is located, thereby moving the second locking block 720 closer to the synchronous belt 540. The first locking block 710 and the second locking block 720 jointly clamp the synchronous belt 540, thereby locking the synchronous belt 540.

[0114] Then, the toggle rod 630 is released, and the toggle rod 630 automatically resets under the action of the torsion spring. Since the synchronous belt 540 is clamped and locked, the synchronous belt 540 will not continue to move during the reset of the toggle rod 630, which can ensure that the rotating ring 520 will not rotate accidentally during the reset of the toggle rod 630, ensuring the smooth tightening operation.

[0115] When the toggle rod 630 is reset, the arc piece 640 moves to the head end of the arc slot 660, and the trigger block 650 pushes the straight rod body 772 of the second driving member 770. The straight rod body 772 drives the circular ring body 771 to cause the second locking rod 750 to move in the opposite axial direction and reset. As the second locking rod 750 moves, the second expanded diameter section 751 of the second locking rod 750 separates from the end of the first locking rod 740, and the first locking rod 740 moves toward the second locking rod 750 under the action of the reset spring to reset. In this way, the first expanded diameter section 741 will also separate from the end of the locking column 730, and the locking column 730 will also move toward the first locking rod 740 under the action of the reset spring and reset. The second locking block 720 is separated from the synchronous belt 540, and the lock of the synchronous belt 540 is released.

[0116] At this time, pressing the toggle lever 630 again can smoothly drive the synchronous belt 540 to rotate the rotating ring 520, and continue to tighten the first positioning member 320 and the second positioning member 330. By repeatedly pressing the toggle lever 630, the first positioning member 320 and the second positioning member 330 can be tightened on the positioning cylinder 310.

[0117] It should be noted that the specific structure of the dental auxiliary tool 400 is not limited thereto.

[0118] To sum up, the guide assembly for anchorage nail implantation provided by the embodiment of the present invention has a simple structure and is easy to use. It can effectively improve the implantation accuracy of anchorage nails and reduce the risk of damage to surrounding tissue structures. It not only improves the efficiency of anchorage nail implantation, but also improves the process safety and reduces the experience requirements for the operator, which is conducive to the promotion and application of anchorage nails in orthodontic clinical practice.

[0119] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A guide assembly for anchorage nail implantation, characterized in that: include: A guide and an anchor nail handle; the guide comprises a retaining portion, a supporting portion and a guide portion; The retaining portion is designed as a jaw pad; The support portion is fixedly connected to the retaining portion; the support portion has a mounting opening and an observation opening, the mounting opening extends from a side of the support portion away from the retaining portion to a side thereof close to the retaining portion, and the observation opening extends from a side of the support portion close to the outside of the oral cavity to an inner wall of the mounting opening; The guide portion is fixedly connected to a side of the support portion away from the retaining portion, the guide portion is arranged at the mouth of the mounting opening, and the guide portion extends from one side edge of the mounting opening to the other side edge of the mounting opening; the guide portion is provided with a clearance through hole for the front end rod body of the support nail handle to pass through, the aperture of the clearance through hole is adapted to the outer diameter of the front end rod body of the support nail handle, and the clearance through hole is opened toward the mounting opening; The support portion is used to open the patient's mouth so that the installation port and the observation port can expose the implantation site and the clearance through hole; Wherein, the retaining portion, the supporting portion and the guiding portion are all made of hard materials; The guide assembly further includes: a fine-tuning mechanism; the fine-tuning mechanism includes a positioning cylinder, a first positioning member and a second positioning member; The outer diameter of the positioning cylinder is adapted to the aperture of the yielding through hole, and one end of the positioning cylinder is provided with a stop flange, and the stop flange is formed by protruding from the outer wall of the positioning cylinder; a positioning ball is housed in the positioning cylinder, and the positioning ball is embedded in the inner wall of the positioning cylinder and can be universally rotatably matched with the positioning cylinder, and the central axis of the positioning cylinder passes through the center of the positioning ball; the positioning ball is provided with a matching through hole arranged along its radial direction, and the aperture of the matching through hole is slightly larger than the outer diameter of the front end rod body of the support nail handle; The first positioning member and the second positioning member are both annular; the first positioning member is threadedly engaged with the outer wall of the positioning cylinder to detachably mount the positioning cylinder on the guide portion; the second positioning member is threadedly engaged with the inner wall of the positioning cylinder to limit the rotation of the positioning ball; The positioning cylinder is provided with a guide groove, which is formed by a depression in the inner wall of the positioning cylinder and extends along the axial direction of the positioning cylinder. The guide groove is located on the side of the positioning ball away from the stop flange. One end of the guide groove passes through the end surface of the positioning cylinder away from the stop flange, and the other end extends to the positioning ball. A limiting ring is further accommodated in the positioning cylinder, the outer diameter of which is adapted to the inner diameter of the positioning cylinder, and a guide block is fixedly provided on the outer side of the limiting ring, which is slidably engaged with the guide groove; along the axial direction of the positioning cylinder, the limiting ring is slidably engaged with the positioning cylinder; along the circumferential direction of the positioning cylinder, the limiting ring is fixedly engaged with the positioning cylinder; The second positioning member is engaged with the inner wall thread of the positioning cylinder to make the limiting ring abut against the positioning ball to limit the rotation of the positioning ball; The guide assembly further includes: a dental auxiliary tool; The dental auxiliary tool comprises: a housing, a rotating ring, a first transmission wheel, a second transmission wheel, a driving wheel assembly and a locking assembly; A receiving through hole is formed at one end of the shell, the receiving through hole passes through the shell, and the inner cavity of the shell extends to the receiving through hole; The rotating ring is rotatably fitted in the accommodating through hole; the rotating ring is adapted to the first positioning member and the second positioning member to rotate the first positioning member and the second positioning member; The first transmission wheel, the second transmission wheel and the driving wheel assembly are all arranged in the inner cavity, the first transmission wheel and the rotating ring are matched with each other through a synchronous belt transmission, and the second transmission wheel and the first transmission wheel are matched with each other; The driving wheel assembly includes: an outer ring body, a center wheel and a toggle lever; the outer ring body and the center wheel are in transmission cooperation via a ratchet structure, the toggle lever is in transmission cooperation with the center wheel, and the outer ring body is in transmission cooperation with the second transmission wheel; the toggle lever extends outside the housing; the toggle lever is fixedly connected to an arc-shaped piece, and an arc-shaped slot adapted to the arc-shaped piece is provided in the housing, and the arc-shaped piece is slidably engaged with the arc-shaped slot; The locking assembly includes: a first locking block, a second locking block, a locking column, a first locking rod, a second locking rod, a first driving member and a second driving member; The first locking block is in contact with the synchronous belt; the locking column is slidably engaged with the inner cavity, and the second locking block is mounted on the locking column and is located on a side of the synchronous belt away from the first locking block; The first locking rod is arranged perpendicular to the locking column and is slidably fitted in the housing, and the second locking rod is arranged perpendicular to the first locking rod and is slidably fitted in the housing; the first locking rod has a first expanded diameter section, and the second locking rod has a second expanded diameter section; The first driving member and the second driving member are respectively provided at two ends of the arc-shaped sliding groove, and both the first driving member and the second driving member are in transmission cooperation with the first locking rod; The arc-shaped piece is connected to a trigger block, and the arc-shaped piece is constructed so that: when the arc-shaped piece moves to one end of the arc-shaped chute, the trigger block drives the first driving member, so that the first driving member drives the first locking rod, and the first expanded diameter section drives the second locking rod, and the second expanded diameter section drives the locking column, thereby causing the first locking block and the second locking block to clamp and lock the synchronous belt; when the arc-shaped piece moves to the other end of the arc-shaped chute, the trigger block drives the second driving member, so that the second driving member drives the first locking rod to reset, thereby causing the first locking block and the second locking block to separate and release the synchronous belt; When the arc-shaped piece moves from the end of the arc-shaped sliding groove close to the first driving member to the end thereof close to the second driving member, the central wheel drives the outer ring body through the ratchet structure.

2. The guide assembly for anchorage nail implantation according to claim 1, characterized in that: The observation port extends along the length direction of the installation port, and the observation port extends to a side surface of the support portion away from the fixing portion.

3. The guide assembly for anchorage nail implantation according to claim 2, characterized in that: The retaining portion is arranged close to the bottom end of the supporting portion; one end of the guiding portion is fixedly connected to the top end of the supporting portion, and the other end is fixedly connected to the bottom end of the supporting portion.

4. The guide assembly for anchorage nail implantation according to claim 1, characterized in that: The guide is formed by 3D printing.

5. The guide assembly for anchorage nail implantation according to claim 1, characterized in that: The guiding assembly further comprises a laser pen, the outer diameter of which is adapted to the aperture of the matching through hole.

6. The guide assembly for anchorage nail implantation according to claim 5, characterized in that: The guide assembly further includes a smoked glass plate, and the smoked glass plate is adapted to a side opening of the installation opening close to the retaining portion.

7. The guide assembly for anchorage nail implantation according to claim 1, characterized in that: The retaining portion, the supporting portion and the guiding portion are all made of resin material.

8. The guide assembly for anchorage nail implantation according to claim 1, characterized in that: The guide portion is in the shape of a thin strip.

Images