A support guide plate and a manufacturing method thereof

Abstract

The present application relates to the field of medical devices, and discloses a support guide plate and a manufacturing method thereof, wherein the structure comprises a guide plate, wherein the guide plate is provided with a fixing portion and a guide hole portion; the guide plate is fixed with a titanium base for positioning and matching with an original implant in the patient's mouth at the fixing portion, wherein a locking countersunk hole for inserting a bolt is provided through the titanium base; and the guide plate is provided with a guide hole at the fixing portion. The present application utilizes the original implant in the patient's mouth for positioning, which can ensure the hole opening accuracy and relieve the patient's pain.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a supporting guide plate and a manufacturing method thereof. Background Art

[0002] Currently, in denture implant surgery, it is necessary to collect information about the patient's alveolar bone in the mouth in advance and save it in three-dimensional software, and then use the software to design the direction and position of the implant. To ensure that the position of the implant after the operation is the same as the pre-designed one, the doctor needs to use a surgical guide to assist in drilling the implant hole in the patient's jawbone.

[0003] The existing implant guide structure includes a pre-matched and customized guide sleeve, the outer surface of which is provided with a mounting hole for installing a fixing nail, and the top of the guide sleeve is provided with an implant guide hole for guiding the direction and position of the hole. When in use, the guide sleeve is first worn in the patient's hole, and the fixing nail is driven through the mounting hole. The fixing nail is connected to the patient's alveolar bone to achieve a firm fixation of the guide sleeve in the patient's mouth, and to avoid the position of the guide sleeve from shifting when drilling the implant hole. Finally, a specific punching tool is used to drill a hole in the alveolar bone in the patient's mouth through the implant guide hole. After the drilling is completed, the fixing nail and the guide sleeve are removed.

[0004] A common situation in life is that a patient loses several teeth and undergoes implant surgery to repair them. A few years later, several biological teeth in his mouth are lost again, so he goes to the hospital for implant surgery again. For patients who undergo implant surgery again or even multiple times, the above-mentioned related technologies are used. For each additional implant surgery, a fixing nail must be driven into the patient's mouth, and the position of the fixing nail is usually different each time, which greatly increases the patient's pain and harm. Summary of the invention

[0005] In order to reduce the patient's pain, the present application provides a supporting guide plate.

[0006] The supported guide plate provided in this application adopts the following technical solution:

[0007] A supporting guide plate comprises a guide plate, wherein the guide plate is provided with a fixing portion and a guide hole portion; a titanium base for positioning and cooperating with an original implant in a patient's mouth is fixed at the fixing portion of the guide plate, and a locking countersunk hole for inserting a bolt is penetrated through the titanium base; and a guide hole is penetrated through the fixing portion of the guide plate.

[0008] By adopting the above technical solution, when in use, the guide plate is placed in the patient's mouth in a specific posture by utilizing the positioning cooperation between the titanium base and the original implant in the patient's mouth, and then a bolt is inserted into the locking countersunk hole. The guide plate is fixed in the patient's mouth through the thread cooperation between the bolt and the original implant. Finally, the doctor uses a drilling tool to drill a hole in the patient's alveolar bone through the guide hole. The present application fixes the guide plate through the implant already in the patient's mouth, and there is no need to implant a fixing nail in the patient's mouth, thereby reducing the patient's pain during the treatment process and greatly improving the patient's treatment experience. In addition, the original implant in the patient's mouth is used to establish a coordinate system to set the guide hole, and the position accuracy of the guide hole is less affected by the surgical operation, which facilitates the realization of higher-precision drilling operations.

[0009] Preferably, the guide hole is coaxially provided with a wear-resistant ring sleeve.

[0010] By adopting the above technical solution, the wear-resistant ring sleeve can not only avoid the friction between the side wall of the drill bit and the inner wall of the guide hole, generating friction powder and affecting the surgical experience, but also prevent the guide hole from being deformed due to friction, thereby ensuring the accuracy of the drilling position.

[0011] Preferably, circular ring platforms are integrally fixed on the guide plate at both ends of the guide hole, and the wear-resistant ring sleeve is also fixed to the inner wall of the circular ring platform.

[0012] By adopting the above technical solution, on the one hand, the circular ring table can enhance the strength around the guide hole, and on the other hand, enhance the connection strength of the wear-resistant ring sleeve to ensure that the wear-resistant ring sleeve will not loosen during the operation.

[0013] Preferably, the titanium base is detachably connected to the guide plate.

[0014] By adopting the above technical solution, the titanium base can be detachably installed, which is convenient for doctors to replace the titanium base with a high degree of fit according to the model of the implant in the patient's mouth, thereby ensuring the stability of the guide plate connection.

[0015] Preferably, a positioning hole is provided on the guide plate, one end of the titanium base is inserted into the positioning hole, a limit block is provided in the positioning hole for limiting the insertion depth of the titanium base, and the limit block has a through hole at a position corresponding to the locking countersunk hole.

[0016] By adopting the above technical solution, the position of the titanium base in the horizontal plane is limited by the positioning hole, and the position of the titanium base in the vertical direction is limited by the limit block, so that the titanium base can be accurately fixed on the guide plate. The through hole is provided to facilitate the placement of the bolt into the locking countersunk hole.

[0017] Preferably, a connecting rod is connected between the two ends of the guide plate.

[0018] By adopting the above technical solution, the two ends of the guide plate are connected by a connecting rod, so as to further improve the stability of the overall structure of the guide plate, and avoid the guide plate twisting in space during surgery, causing the position of the guide hole to shift.

[0019] Preferably, the fixing portion and the guide hole portion are located in different planes, and the guide hole portion is arranged on a side of the fixing portion close to the tip of the titanium base.

[0020] By adopting the above technical solution, the guide hole can be brought closer to the patient's alveolar bone, further improving the drilling accuracy.

[0021] Preferably, the titanium base is a titanium cone block.

[0022] By adopting the above technical solution, since the implant is made of titanium metal and a titanium cone block is used as a titanium base, it is convenient to fix the titanium base and the implant more stably and with higher precision.

[0023] A method for manufacturing a supported guide plate comprises the following steps:

[0024] S1, a titanium abutment is customized to match the existing implants in the patient's mouth;

[0025] S2, screw the titanium base into the patient's mouth, perform CT scans together, and obtain the patient's CT model;

[0026] S3, making a plaster model, removing the titanium base from the patient's mouth and installing it on the plaster model, performing a scan, and obtaining a scan model;

[0027] S4, in the 3D software, the titanium base is used for positioning and the patient's CT model is overlapped and matched with the warehouse scan model;

[0028] S5, guided by the restoration, a wax-up of the restored tooth is made on the upper part of the abutment, the edge position of the abutment is reserved, and the scan is performed to match the patient's CT.

[0029] S6, design the shape of the guide plate and the position and direction of the guide hole in 3D software;

[0030] S7, use a 3D printer to print out the guide plate, fix the titanium base into the positioning hole, and fix the wear-resistant ring sleeve into the guide hole.

[0031] By adopting the above technical solution, the titanium base is used as the positioning point, and the three sets of three-dimensional scanning data are matched to manufacture the guide plate with high precision; and there is no need to manufacture the radiographic guide plate, which greatly shortens the guide plate processing cycle.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] The guide plate is fixed to the patient's original implant through a threaded connection, which reduces the patient's pain during treatment and greatly improves the patient's treatment experience.

[0034] Drilling through guide holes reduces positioning errors, improves drilling accuracy, greatly enhances the quality of implant surgery, and facilitates subsequent installation.

[0035] A wear-resistant ring sleeve is coaxially fixed in the guide hole to avoid friction between the side wall of the drill bit and the inner wall of the guide hole to generate friction powder, which greatly improves the patient's treatment experience.

[0036] Compared with the production of radiographic guides, the present application can greatly shorten the processing time of the guides and speed up the surgery and treatment of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a supporting guide plate according to an embodiment of the present application.

[0038] Figure 2 It is a top view of a supporting guide plate according to an embodiment of the present application.

[0039] Figure 3 yes Figure 2 Partial cross-sectional view along line AA.

[0040] Figure numerals: 1. guide plate; 2. guide hole; 3. wear-resistant ring sleeve; 4. circular ring platform; 5. connecting rod; 6. positioning hole; 7. limit block; 8. through hole; 9. titanium base; 10. locking countersunk hole. DETAILED DESCRIPTION

[0041] The following is a combination of the embodiments Figure 1-3 This application is described in further detail.

[0042] The embodiment of the present application discloses a supporting guide plate.

[0043] Reference Figure 1A support guide plate includes a guide plate 1, which is C-shaped. A fixing portion is set on the guide plate 1 corresponding to the position of the original implant in the patient's mouth, and a guide hole portion is set at the position where a hole needs to be drilled. In this embodiment, fixing portions are set at both ends of the guide plate 1, and a guide hole portion is set in the middle of the guide plate 1. A titanium base 9 for positioning and cooperating with the implant is fixed at the fixing portion of the guide plate 1. The titanium base 9 is a titanium cone block. A locking countersunk hole 10 is opened in the titanium base 9 along its axial direction, and a guide hole 2 is opened at the guide hole portion of the guide plate 1. When in use, the original implant denture in the patient's mouth is first removed to expose the implant that has been planted before, and then the guide plate 1 is placed in the patient's mouth in a specific posture by using the positioning cooperation between the titanium base 9 and the implant, and then the bolt connected to the original implant thread is inserted into the locking countersunk hole 10, and the bolt is tightened with the original implant. The guide plate 1 is fixed in the patient's mouth in a specific position and posture, and finally, the drilling drill is passed through the guide hole 2 to punch a new implant hole on the alveolar bone in the patient's mouth. The number of titanium bases 9 is determined according to the number of implants originally in the patient's mouth. In this embodiment, two titanium bases 9 are provided at both ends of the guide plate 1 to further improve the stability of the guide plate 1 fixation.

[0044] Reference Figure 1 and Figure 2 The guide plate 1 is coaxially embedded with a wear-resistant ring sleeve 3 on the inner wall of the guide hole 2. During the drilling process, the side wall of the drill bit contacts and rubs against the inner wall of the guide hole 2. By setting the wear-resistant ring sleeve 3, it can avoid the friction between the side wall of the drill bit and the inner wall of the guide hole 2 to generate friction powder and affect the surgical experience, and it can also prevent the guide hole 2 from being deformed due to friction, thereby ensuring the accuracy of the drilling position.

[0045] A circular ring platform 4 is fixed integrally to the guide plate 1 at the circumferential direction of the end of the guide hole 2, and the wear-resistant ring sleeve 3 is embedded in the inner wall of the circular ring platform 4. When in use, drilling is performed through the guide hole 2, and the drilling drill bit will inevitably contact with the wear-resistant ring sleeve 3. Therefore, by setting the circular ring platform 4, the connection strength of the wear-resistant ring sleeve 3 is further increased, making the structure of the wear-resistant ring sleeve 3 more stable and not prone to loosening, thereby ensuring the accuracy of the drilling operation.

[0046] Reference Figure 1 and Figure 2 The guide plate 1 is also stepped, the fixing portion and the guide hole portion are located at different heights, and the guide plate 1 is integrally provided with an inclined connecting section at the connection between the fixing portion and the guide hole portion. The guide hole portion is located on the side of the fixing portion close to the tip of the titanium base 9. On the one hand, due to the height difference between the posterior alveolar bone and the anterior alveolar bone in the mouth, such a setting can be closer to the shape of the biological oral cavity. On the other hand, it is convenient to bring the guide hole portion and the wear-resistant ring sleeve 3 closer to the alveolar bone in the patient's mouth, thereby improving the accuracy of the drilling position.

[0047] Reference Figure 1 and Figure 2A plurality of connecting rods 5 are integrally connected between the two ends of the guide plate 1. The connecting rods 5 can increase the torsion resistance of the guide plate 1 structure and further enhance the structural stability of the guide plate 1. The present embodiment adopts two connecting rods 5 parallel to each other, wherein the connecting rod 5 located at the end of the guide plate 1 is thicker than the other connecting rod 5, further increasing the torsion resistance of the structure, improving the stability of the overall structure of the guide plate 1, and ensuring that the guide plate 1 will not be deformed during surgery.

[0048] Reference Figure 2 and Figure 3 The guide plate 1 is provided with a positioning hole 6 at the fixing part, and the titanium base 9 is plugged into the positioning hole 6 of the guide plate 1. A limit block 7 for limiting the insertion depth of the titanium base 9 is also fixed in the positioning hole 6. The limit block 7 is provided with a through hole 8 for inserting a bolt into the locking countersunk hole 10. The positioning hole 6 extends from one end of the titanium base 9. The radius of the end of the titanium base 9 away from the guide plate 1 gradually decreases in the direction away from the guide plate 1. Since a conical groove is provided on the top of the implant, the titanium base 9 is provided to facilitate the automatic positioning of the implant and the guide plate 1. At the same time, the implant in the patient's mouth may come from different manufacturers and the sizes used may be different. The titanium base 9 is plugged into the positioning hole 6 to facilitate the replacement of the titanium base 9 and match the titanium base 9 with the size of the implant in the patient's mouth.

[0049] The implementation principle of this embodiment is as follows: first, remove the original implant denture in the patient's mouth to expose the implant, and then use the cooperation between the implant and the titanium base 9 to put the guide plate 1 into the patient's mouth, then put the bolt into the locking countersunk hole 10 through the perforation 8, tighten the bolt and the implant, and complete the operation of fixing the guide plate 1 in the patient's mouth. Finally, under the guidance of the wear-resistant ring sleeve 3, the doctor uses a punching tool to accurately punch holes on the patient's alveolar bone. Under the premise of ensuring the auxiliary accuracy of the punching, this application avoids the harm of the patient's body to the secondary operation by reusing the original implant in the patient's mouth, reduces the patient's pain during treatment, and improves the patient's treatment experience.

[0050] A method for manufacturing a supported guide plate comprises the following steps:

[0051] S1, based on the existing implant in the patient's mouth, a titanium base 9 that matches the implant is custom-designed in a three-dimensional software, and the required titanium base 9 is processed by cutting titanium cakes on an automatic lathe;

[0052] S2, screwing the titanium base 9 into the patient's mouth, performing CT scanning together, and obtaining a CT model of the patient;

[0053] S3, making a plaster model in the patient's mouth, and removing the titanium base 9 from the patient's mouth and installing it on the plaster model, performing a scan, and obtaining a scan model;

[0054] S4, in the three-dimensional software, the patient's CT model is matched with the warehouse scan model by using the titanium base 9 for coincidence positioning;

[0055] S5, guided by the restoration, a wax-up of the restored tooth is made on the upper part of the abutment, the edge position of the abutment is reserved, and the scan is performed to match the patient's CT.

[0056] S6, designing the shape of the guide plate 1 and the position and direction of the guide hole 2 in a three-dimensional software;

[0057] S7, use a 3D printer to print out the guide plate 1, insert the titanium base 9 into the positioning hole 6, and if necessary, glue can be used to fix the wear-resistant ring sleeve 3 in the guide hole 2 by gluing.

[0058] The principle of manufacturing the supported guide plate in this application is:

[0059] First, through step S2, the acquired patient CT model includes the alveolar bone information in the patient's mouth and the position information of the titanium base 9;

[0060] Then, through step S3, the scanned model obtained contains the one-to-one structural information of the patient's mouth and the position information of the titanium base 9. The designed guide plate 1 is also installed on the model in this state.

[0061] Step S4 is to supplement the scanned model with information about the alveolar bone in the gums of the patient. However, the information about the alveolar bone in the patient's mouth is not enough to design the guide plate 1 on the scanned model, and the shape of the posterior teeth needs to be restored.

[0062] Therefore, step S5 is performed to further match the shape information of the restored teeth.

[0063] Finally, a solid-wrapped titanium base 9 is designed to form a guide plate 1. Combining the information of the restored teeth and the alveolar bone in the patient's mouth, the depth, position and inclination angle of the implant point can be designed on the scanned model, and the guide hole 2 can be designed on the guide plate 1 using the position and inclination angle.

[0064] With the titanium base 9 as the positioning point, three sets of three-dimensional scanning data are matched to manufacture the guide plate 1 with high precision; and since there is no need to manufacture the radiation guide plate 1, the processing cycle of the guide plate 1 is greatly shortened.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A supporting guide plate, characterized in that: The invention comprises a guide plate (1), wherein the guide plate (1) is provided with a fixing portion and a guide hole portion; the guide plate (1) is fixed with a titanium base (9) at the fixing portion for positioning and matching with an original implant in a patient's mouth, and a locking countersunk hole (10) for inserting a bolt is provided through the titanium base (9); and the guide plate (1) is provided with a guide hole (2) at the guide hole portion; The titanium base (9) is detachably connected to the guide plate (1); a positioning hole (6) is provided on the guide plate (1), one end of the titanium base (9) is inserted into the positioning hole (6), a limit block (7) is provided in the positioning hole (6) for limiting the insertion depth of the titanium base (9), and the limit block (7) is provided with a through hole (8) at a position corresponding to the locking countersunk hole (10); the titanium base (9) is a titanium cone block.

2. A support guide plate according to claim 1, characterized in that: A wear-resistant ring sleeve (3) is fixed inside the guide hole (2).

3. A supporting guide plate according to claim 2, characterized in that: The guide plate (1) is integrally fixed with a circular ring platform (4) at both ends of the guide hole (2), and the wear-resistant ring sleeve (3) is also fixed to the inner wall of the circular ring platform (4).

4. A supporting guide plate according to claim 1, characterized in that: A connecting rod (5) is connected between the two ends of the guide plate (1).

5. A supporting guide plate according to claim 1, characterized in that: The fixing portion and the guide hole portion are located in different planes, and the guide hole portion is arranged on a side of the fixing portion close to the tip of the titanium base (9).

6. A method for manufacturing a supported guide plate according to any one of claims 1 to 5, characterized in that: The following steps are included: S1, customizing a titanium base (9) that matches the existing implant in the patient's mouth; S2, screwing the titanium base (9) into the existing implant in the patient's mouth, and performing CT scanning together to obtain a CT model of the patient; S3, manufacturing a plaster model, removing the titanium base (9) from the patient's mouth and installing it on the plaster model, performing a scan, and obtaining a scan model; S4, in the three-dimensional software, the titanium base (9) is used for positioning, and the patient's CT model is overlapped and matched with the scanned model; S5, guided by the restoration, a wax-up of the restored tooth is made on the upper part of the abutment, the edge position of the abutment is reserved, and the scan is performed to match the patient's CT. S6, designing the shape of the guide plate (1) and the position and direction of the guide hole (2) in a three-dimensional software; S7, using a 3D printer to print out a guide plate (1), fixing the titanium base (9) into the positioning hole (6), and fixing the wear-resistant ring sleeve (3) into the guide hole (2).

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