An autologous tooth transplantation auxiliary stabilizing device

Abstract

The application discloses an autogenous tooth transplantation auxiliary stabilizing device and a tooth transplantation method. The autogenous tooth transplantation auxiliary stabilizing device comprises a fixing nail, a fixing ring and a fixing support, the fixing nail comprises a tip and an outer thread, the inner circumferential wall in the fixing ring is formed with an inner thread for being threadedly connected with the fixing nail, the fixing support comprises an auxiliary nail and a supporting rod, the first end of the supporting rod is connected with the auxiliary nail, the second end of the supporting rod is connected with the fixing ring, the auxiliary nail is provided with a plurality of auxiliary nails, each auxiliary nail is connected with a supporting rod, and a fastening mechanism is arranged, the fastening mechanism comprises a pushing rod and a driving mechanism, the driving mechanism is connected with the pushing rod and is used for driving the pushing rod to stretch, and the auxiliary nail is pushed to be fixed to the side wall of the alveolar bone through the pushing rod. The application has the advantages that the transplanted tooth body is fixed, the stability of the transplanted tooth body can be increased, the success rate of the transplantation operation can be improved, the traditional mode of relying on healthy adjacent teeth for fixation can be abandoned, local cleaning is facilitated, and the health of the gum around the transplanted tooth is ensured.

Description

Technical Field

[0001] This invention relates to the field of autologous tooth transplantation technology, and more specifically, to an autologous tooth transplantation auxiliary stabilization device and a tooth transplantation method. Background Technology

[0002] Autologous tooth transplantation is a surgical procedure that transplants a tooth from one location to another within the same individual. Commonly, it involves transferring impacted, malpositioned, or ectopic teeth to alveoli in sites requiring extraction or where teeth are missing. However, because the root shape and size of each tooth vary, the root of an autologous donor tooth cannot perfectly match the alveolar socket of the recipient area, often failing to fit properly or achieve adequate stability. Therefore, this technique has very strict clinical indications, and few cases meet the requirements for traditional autologous tooth transplantation, thus limiting its clinical application. Furthermore, the traditional retention method after implantation involves binding the donor tooth to adjacent healthy teeth with adhesive materials or retention wires. This not only exerts unfavorable forces on adjacent teeth but also causes a foreign body sensation in the patient, easily leading to food impaction and local gingivitis, thereby affecting the success rate of the transplanted tooth. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention innovatively provides an autologous tooth transplantation auxiliary stabilization device and a tooth transplantation method, which can solve the technical problems of unreliable fixation of transplanted teeth and low success rate of transplanted teeth in the prior art.

[0004] To achieve the aforementioned technical objectives, in a first aspect, the present invention discloses an autologous tooth transplantation auxiliary stabilization device, comprising: Fixation pins, including a tip and external threads, are used for threaded connection to the transplanted tooth and the alveolar bone floor. The auxiliary fixing component includes a fixing ring and a fixing bracket. The inner circumferential wall of the fixing ring has internal threads for threaded connection with the fixing pin. The fixing bracket includes an auxiliary pin and a support rod. A first end of the support rod is connected to the auxiliary pin, and a second end of the support rod is connected to the fixing ring. Multiple auxiliary nails are provided, and each auxiliary nail is connected to one of the support rods; The fastening mechanism includes a push rod and a drive mechanism, wherein the drive mechanism is connected to the push rod and is used to drive the push rod to extend, thereby pushing the auxiliary pin to be fixed to the alveolar bone sidewall.

[0005] Furthermore, the auxiliary nail includes a connecting block and a spike, the connecting block having a plate-like structure, the spike being formed on the outer side wall of the connecting block, and the support rod being connected to the bottom wall of the connecting block.

[0006] Furthermore, a positioning groove is formed on the inner sidewall of the connecting block.

[0007] Furthermore, the groove wall of the positioning groove is partially spherical. The second end of the push rod has a top block, which is spherical, and a portion of the top block can be embedded in the positioning groove.

[0008] Furthermore, multiple push rods are provided, and each push rod corresponds to one of the auxiliary nails.

[0009] Furthermore, adjacent connecting blocks are connected by a connecting chain, which has a telescopic function.

[0010] Furthermore, the driving mechanism includes a screw, on which an adjusting collar is sleeved, and the inner wall of the adjusting collar is provided with an internal thread for connection with the screw. A connecting ring is also fitted on the screw, the first end of the push rod is connected to the connecting ring, and the second end of the push rod is used to abut against the positioning groove on the connecting block.

[0011] Furthermore, a fixed handle is provided at the first end of the screw, and a limit block is provided at the second end of the screw.

[0012] In a first aspect, the present invention discloses a tooth transplantation method, wherein the above-mentioned autologous tooth transplantation auxiliary stabilization device is used to assist in fixing the transplanted tooth, the tooth transplantation method comprising: Extract the decayed tooth in the implant area; Install the autologous tooth transplant auxiliary stabilization device; The transplanted tooth is extracted, and a central through hole is drilled in the center of the transplanted tooth. The transplanted tooth is mounted onto the autologous tooth transplant stabilization device using the fixation pin.

[0013] Furthermore, the installation of the autologous tooth transplant auxiliary stabilization device includes: The auxiliary fixation component is placed into the alveolar socket of the transplant area, so that the fixation ring contacts the bottom of the alveolar socket. The fastening mechanism is used to simultaneously press multiple auxiliary pins, thereby fixing the auxiliary pins to the side wall of the alveolar socket.

[0014] The beneficial effects of this invention are as follows: The autologous tooth transplant stabilization device provided by this invention is used to fix the transplanted tooth in the alveolar socket of the transplant area, thereby stabilizing the transplanted tooth. Compared with the traditional method of bonding transplanted teeth, this invention can increase the stability of the transplanted tooth, improve the success rate of transplantation surgery, expand the clinical application range of autologous tooth transplantation technology, and eliminate the need for traditional reliance on healthy adjacent teeth for retention, which is beneficial for local self-cleaning and ensures the health of the gingiva around the transplanted tooth. Attached Figure Description

[0015] Figure 1 This diagram illustrates the structure of an autologous tooth transplantation stabilization device according to an embodiment of the present invention. Figure 2 A schematic diagram of the auxiliary fixing component according to an embodiment of the present invention is shown.

[0016] In the picture, 1. Fixing pin; 2. Auxiliary fixing component; 21. Fixing ring; 22. Support rod; 23. Auxiliary pin; 231. Connecting block; 232. Spike; 233. Positioning groove; 31. Screw; 311. Handle; 312. Limiting block; 32. Adjusting collar; 33. Connecting ring; 34. Push rod. Detailed Implementation

[0017] The following detailed explanation and description of the autologous tooth transplantation auxiliary stabilization device and tooth transplantation method provided by the present invention, with reference to the accompanying drawings, are provided in the specification.

[0018] The autologous tooth transplant stabilization device provided by this invention is used to fix the transplanted tooth in the alveolar socket of the transplant area, thereby stabilizing the transplanted tooth. Compared with the traditional method of bonding transplanted teeth, this invention can increase the stability of the transplanted tooth, improve the success rate of transplantation surgery, expand the clinical application range of autologous tooth transplantation technology, and eliminate the need for traditional reliance on healthy adjacent teeth for retention, which is beneficial for local self-cleaning and ensures the health of the gingiva around the transplanted tooth. The invention will be described in detail below with reference to specific embodiments: In one embodiment, the present invention provides an autologous tooth transplantation stabilization device, such as... Figure 1 , Figure 2 As shown, it includes an auxiliary fixation component 2, a fixation pin 1, and a fastening mechanism. The auxiliary fixation component 2 can be fixedly installed in the alveolar socket through the fastening mechanism. The fixation pin 1 connects the transplanted tooth to the auxiliary fixation component 2 and the alveolar bone, which can effectively improve the stability of the transplanted tooth and ensure that the fixation of the transplanted tooth will not affect adjacent teeth.

[0019] In this embodiment, the fixation pin 1 includes a tip and external threads for threaded connection with the transplanted tooth and the alveolar bone floor. The auxiliary fixation assembly 2 includes a fixation ring 21 and a fixation bracket. The fixation bracket is used for fixed connection with the sidewall of the alveolar socket, and the fixation ring 21 is connected to the fixation bracket, which can fix the fixation ring 21 to the bottom of the alveolar socket. The inner peripheral wall of the fixation ring 21 has internal threads for threaded connection with the fixation pin 1. The fixation pin 1, the fixation ring 21, and the alveolar bone are connected simultaneously, providing dual fixation for the transplanted tooth.

[0020] like Figure 2 As shown, the fixing bracket includes auxiliary nails 23 and support rods 22. The first end of the support rod 22 is connected to the auxiliary nails 23, and the second end of the support rod 22 is connected to the fixing ring 21. In this embodiment, multiple auxiliary nails 23 are provided, and each auxiliary nail 23 is connected to a support rod 22. The second ends of the multiple support rods 22 are connected to the outer peripheral wall of the fixing ring 21 or to the outer edge of the fixing ring 21. Optionally, the multiple support rods 22 are evenly distributed along the circumference of the fixing ring 21. For example, two, three or more support rods 22 can be provided, and each support rod 22 corresponds to one auxiliary nail 23. The multiple evenly distributed support rods 22 can improve the stability of the fixing ring 21.

[0021] Optionally, the support rod 22 and the fixing ring 21 are set at a certain angle, so that the fixing ring 21 is located below the auxiliary pin 23 during installation. This ensures that the auxiliary pin 23 is fixed to the side wall of the alveolar socket while the fixing ring 21 is fixed to the bottom of the alveolar socket. Furthermore, the support rod 22 is made of a material with a certain degree of elasticity, allowing for a certain amount of elastic deformation during installation, while also possessing sufficient strength to provide pressure to the fixing ring 21, pressing it against the bottom of the alveolar socket for fixation. Optionally, the support rod 22 can be made of medical-grade metal materials, such as cobalt-chromium alloy, stainless steel, titanium, and alloys, etc., selecting a material that meets the requirements as needed.

[0022] The auxiliary pin 23 includes a connecting block 231 and a spike 232. The connecting block 231 has a plate-like structure, and the spike 232 is formed on the outer wall of the connecting block 231. A positioning groove 233 is formed on the inner wall of the connecting block 231, and the support rod 22 is connected to the bottom wall of the connecting block 231. Optionally, the connecting block 231 has a certain thickness, the outer wall is the wall surface that contacts the alveolar bone, the inner wall is parallel to the outer wall, and the bottom wall is located on the side close to the fixing ring 21. The spike 232 has a conical structure or a certain curvature, and the spike 232 is inclined downward at a certain angle to the outer wall of the connecting block 231 to facilitate insertion into the alveolar bone. The spike 232 and the connecting block 231 are preferably an integral structure, manufactured by integral molding, that is, the auxiliary pin 23 is an integral structure. Optionally, the auxiliary pin 23 can be made of a material with a certain hardness, such as titanium alloy.

[0023] Optionally, in some embodiments, adjacent connecting blocks 231 are connected by a connecting chain, which has a telescopic function. The connecting chain improves the overall integrity of the fixation bracket. The connecting chain can be a telescopic structure, such as a metal spring, which can ensure that each auxiliary pin 23 can be fitted and fixed to the alveolar bone through telescopic movement.

[0024] The fastening mechanism includes a push rod 34 and a drive mechanism. The drive mechanism is connected to the push rod 34 and is used to drive the push rod 34 to extend, thereby pushing the auxiliary pin 23 to be fixed to the alveolar bone sidewall. Specifically, the pin 232 is inserted into the alveolar bone sidewall. Multiple push rods 34 are provided, each push rod 34 corresponding to one auxiliary pin 23. Alternatively, in some embodiments, the number of push rods 34 can be greater than the number of auxiliary pins 23, making it suitable for various fixation brackets.

[0025] Optionally, a positioning groove 233 is formed on the inner sidewall of the connecting block 231 for engaging with the second end of the push rod 34, ensuring that the push rod 34 can effectively contact the connecting block 231 without slipping. In this embodiment, the groove wall of the positioning groove 233 is partially spherical, and a top block is formed at the second end of the push rod 34. The top block is spherical and engages with the positioning groove 233. A portion of the top block can be embedded in the positioning groove 233, which can both limit the push block through the positioning groove 233 and prevent the push block from rotating and being obstructed during the pushing process.

[0026] The drive mechanism includes a screw 31, on which an adjusting collar 32 is fitted. The inner wall of the adjusting collar 32 is provided with an internal thread that connects to the screw 31. Rotating the adjusting collar 32 allows it to move up and down along the screw 31. A connecting ring 33 is also fitted on the screw 31. The first end of the push rod 34 is connected to the connecting ring 33, and the second end of the push rod 34 is used to abut against the positioning groove 233 on the connecting block 231. Moving the adjusting collar 32 downward can push the connecting ring 33 downward, thereby applying a thrust to the push rod 34, causing the push rod 34 to push the auxiliary pin 23 until the spike 232 is inserted into the alveolar bone.

[0027] Optionally, an anti-slip layer may be provided on the outer peripheral wall of the adjusting collar 32. For example, evenly distributed protrusions may be provided on the outer peripheral wall of the adjusting collar 32, or an anti-slip sleeve may be provided, etc. Any structure that can facilitate rotational operation is acceptable.

[0028] A fixing handle is provided at the first end of the screw 31. Optionally, the fixing handle is a horizontal bar that is perpendicular to the screw 31, which is held by medical personnel to fix the position of the screw 31. A limit block 312 is provided at the second end of the screw 31 to prevent the connecting ring 33 from slipping off the screw 31.

[0029] In another embodiment, the present invention provides a tooth transplantation method, comprising using the above-described autologous tooth transplantation auxiliary stabilization device to assist in fixing the transplanted tooth, the tooth transplantation method comprising: Extraction of decayed teeth in the implant area: Optionally, minimally invasive tooth extraction can be performed under local anesthesia, preserving the surrounding alveolar bone wall and removing the alveolar septum to provide suitable space for the installation of an autologous tooth transplant stabilization device.

[0030] Install autologous tooth graft stabilization device: Select an auxiliary fixation assembly 2 containing an appropriate number of auxiliary pins 23 and place it at the bottom of the alveolar socket after tooth extraction, so that the fixation plate contacts the bottom of the alveolar socket and the multiple auxiliary pins 23 unfold to contact the bone wall around the alveolar socket.

[0031] Multiple auxiliary pins 23 are simultaneously pressed using a fastening mechanism to fix them to the sidewall of the alveolar socket. In this embodiment, the second end of the push rod 34 is inserted into the alveolar socket, and a top block of the push rod 34 is inserted into the limiting groove of each auxiliary pin. One hand holds the handle 311 on the screw 31 and moves the position of the screw 31, so that the push rod 34 is subjected to force, and the top block cannot slide out of the limiting groove and maintains the position of the screw 31. The other hand rotates the adjusting collar 32, so that the adjusting collar 32 pushes the connecting ring 33 downward, applies a pushing force to the push rod 34, and gradually presses the spikes 232 on the auxiliary pins 23 into the alveolar bone, thus completing the installation of the auxiliary fixing component 2. Finally, the fastening mechanism is removed.

[0032] Extraction of the transplanted tooth: The tooth was extracted using minimally invasive local anesthesia, taking care not to damage the periodontal ligament of the transplanted tooth. Immediately after extraction, a complete root canal treatment was performed, and a central through-hole was drilled in the center of the transplanted tooth to allow the insertion of the fixation pin 1.

[0033] Install transplanted teeth: The transplanted tooth is mounted onto the autologous tooth transplant stabilization device using fixation pin 1. The transplanted tooth is placed in the alveolar socket, and a screwdriver is used to screw the appropriately sized fixation pin 1 into the central channel inside the transplanted tooth. Part of the pin remains inside the tooth, while the other part connects to the threads inside the center of the retention plate. The tapered tip of fixation pin 1 is screwed into the alveolar bone for further retention. This allows the entire transplanted tooth to be not only tightly fixed to the underlying alveolar bone via fixation pin 1, but also indirectly stabilized and retained using surrounding anchored retention chains through the threaded connection of the underlying retention plate.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and simple improvements made on the substantive content of the present invention should be included within the protection scope of the present invention.

Claims

1. An autologous tooth transplant auxiliary stabilization device, characterized in that, include: Fixation pins, including a tip and external threads, are used for threaded connection to the transplanted tooth and the alveolar bone floor. The auxiliary fixing component includes a fixing ring and a fixing bracket. The inner circumferential wall of the fixing ring has internal threads for threaded connection with the fixing pin. The fixing bracket includes an auxiliary pin and a support rod. A first end of the support rod is connected to the auxiliary pin, and a second end of the support rod is connected to the fixing ring. Multiple auxiliary nails are provided, and each auxiliary nail is connected to one of the support rods; The fastening mechanism includes a push rod and a drive mechanism, wherein the drive mechanism is connected to the push rod and is used to drive the push rod to extend, thereby pushing the auxiliary pin to be fixed to the alveolar bone sidewall.

2. The autologous tooth transplant auxiliary stabilization device according to claim 1, characterized in that, The auxiliary nail includes a connecting block and a spike. The connecting block has a plate-like structure, the spike is formed on the outer side wall of the connecting block, and the support rod is connected to the bottom wall of the connecting block.

3. The autologous tooth transplant auxiliary stabilization device according to claim 2, characterized in that, A positioning groove is formed on the inner wall of the connecting block.

4. The autologous tooth transplant auxiliary stabilization device according to claim 3, characterized in that, The groove wall of the positioning groove is partially spherical. The second end of the push rod has a top block, which is spherical, and a portion of the top block can be embedded in the positioning groove.

5. The autologous tooth transplant auxiliary stabilization device according to claim 4, characterized in that, Multiple push rods are provided, and each push rod corresponds to one of the auxiliary nails.

6. The autologous tooth transplant auxiliary stabilization device according to claim 3, characterized in that, The two adjacent connecting blocks are connected by a connecting chain, which has a telescopic function.

7. The autologous tooth transplant auxiliary stabilization device according to claim 3, characterized in that, The driving mechanism includes a screw, on which an adjusting collar is sleeved. The inner wall of the adjusting collar is provided with an internal thread that connects to the screw. A connecting ring is also fitted on the screw, the first end of the push rod is connected to the connecting ring, and the second end of the push rod is used to abut against the positioning groove on the connecting block.

8. The autologous tooth transplant auxiliary stabilization device according to claim 7, characterized in that, The screw has a fixed handle at its first end and a limit block at its second end.

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