Ultrasonic osteotome guide plate assembly for alveolar bone splitting and preparation method of ultrasonic osteotome guide plate assembly

Abstract

The invention discloses an ultrasonic osteotome guide plate assembly for alveolar bone splitting and a preparation method of the ultrasonic osteotome guide plate assembly. Preoperative implant position design with repair as guidance is adopted, and an ideal osteotome cutting path is designed before an operation on the basis of the preoperative implant position design; an ideal transverse splitting path guide plate and an ideal longitudinal splitting path guide plate are designed according to the determined osteotome cutting path and are formed by adopting a 3D printing technology, and the manufacturing method is simple and practical; the transverse splitting path guide plate and the longitudinal splitting path guide plate are combined for use, so that a preoperative cutting path can be accurately guided, an ideal bone plate is formed, a good bone increment effect is achieved, meanwhile, operative wounds are reduced, the operation time is shortened, and important anatomical structures are prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of medical device structures, and in particular to an ultrasonic bone knife guiding plate assembly for alveolar bone splitting surgery and a preparation method thereof. Background Art

[0002] The ultrasonic bone knife guidance guide assembly for alveolar bone splitting surgery has been used to a certain extent in clinical practice. It can provide a precise cutting path for the ultrasonic bone knife, ensure that the position, depth and direction of the alveolar bone splitting meet the surgical design requirements, reduce surgical errors, and improve the accuracy and success rate of implant placement; by limiting the operating range of the ultrasonic bone knife, it avoids accidental damage to important surrounding tissues such as nerves, blood vessels and adjacent teeth, thereby reducing the incidence of surgical complications; it can also perform alveolar bone splitting operations more quickly and accurately, reducing the time for intraoperative adjustments and finding the correct cutting path, thereby shortening the overall operation time.

[0003] The current routine procedure for this technology is to roughly determine the cutting path by combining preoperative cone beam computed tomography and the intraoperative patient's oral condition. During the operation, an ultrasonic bone knife is used to cut the bone surface at the alveolar ridge top and labial side, and the labial bone plate is formed and then the labial side of the bone plate is spread open. After implantation, the bone replacement material is combined to complete the bone augmentation. However, in the entire process, the lack of precise intraoperative guidance makes it difficult to implement the planned cutting path during the operation and form an ideal bone plate, which affects the final bone augmentation effect and may even cause the labial bone plate to break, increasing surgical risks such as damage to important anatomical structures, such as adjacent tooth roots.

[0004] Therefore, there is a need to improve the ultrasonic bone knife guiding guide plate assembly and its preparation method for alveolar bone splitting surgery in the prior art, which can not only accurately guide the bone knife cutting path during the operation to form an ideal bone plate and achieve a good bone augmentation effect, but also reduce surgical trauma, shorten the operation time, and avoid damage to important anatomical structures. Summary of the invention

[0005] In view of this, the object of the present invention is to provide an ultrasonic bone knife guiding guide plate assembly for alveolar bone splitting surgery and a preparation method thereof, which can be used to accurately guide the bone knife cutting path during surgery, reduce surgical trauma, shorten operation time, and avoid damage to important anatomical structures.

[0006] The ultrasonic bone knife guiding guide plate assembly for alveolar bone splitting of the present invention comprises:

[0007] The base plate is embedded in the dental arch to form a guiding foundation when in use;

[0008] A transverse splitting path guide plate is arranged on the base plate and is provided with a transverse guide portion for guiding and constraining the osteotome to perform transverse cutting on the alveolar bone;

[0009] The longitudinal splitting path guide plate is arranged on the base plate and is provided with a longitudinal guide part for guiding and constraining the bone knife to perform longitudinal cutting on the alveolar bone.

[0010] Furthermore, a longitudinal splitting path guide plate expansion portion is provided on the longitudinal splitting path guide plate, and the longitudinal splitting path guide plate expansion portion forms a wedge angle with the longitudinal splitting path guide plate, and the wedge angle is used to expand the alveolar bone and the tissue on the labial side of the alveolar bone.

[0011] Furthermore, a mounting seat for mounting the transverse cleaving path guide plate is provided on the base plate, and the mounting seat is fixed to the base plate and is provided with a mounting portion for detachably mounting the transverse cleaving path guide plate.

[0012] Further, the transverse guide portion is a transverse path guide slit provided on the transverse split path guide plate, and the longitudinal guide portion is two vertical longitudinal path guide slits provided in parallel on the longitudinal split path guide plate;

[0013] The transverse splitting path guide plate includes a first transverse splitting path guide plate, a second transverse splitting path guide plate and a third transverse splitting path guide plate for guiding the bone knife to sequentially deepen the cutting depth. The height of the transverse path guide seam of the first transverse splitting path guide plate from the alveolar bone is 6.5-7mm, the height of the transverse path guide seam of the second transverse splitting path guide plate from the alveolar bone is 4.5-5mm, and the height of the transverse path guide seam of the third transverse splitting path guide plate from the alveolar bone is 2.5-3.5mm.

[0014] Furthermore, the base plate includes a base plate retaining seat that conforms to the dental arch and is embedded in the dental arch for fixation. The base plate retaining seat extends to both sides of the surgical position by a set length, and the base plate retaining seat is provided with a plurality of positioning indicator windows for observing the positioning status of the base plate retaining seat.

[0015] Furthermore, the longitudinal splitting path guide plate is integrally formed with the base plate, and the longitudinal splitting path guide plate expansion portion includes two columnar expansion blades arranged in parallel, the columnar expansion blades are wedge-shaped with a larger upper portion and a smaller lower portion, and the longitudinal path guide seam avoids the columnar expansion blades in the surgical direction.

[0016] Furthermore, a transverse splitting path guide plate mounting seat is integrally formed on the base plate, and the transverse splitting path guide plate is detachably mounted on the transverse splitting path guide plate mounting seat by plugging.

[0017] The present invention also discloses a method for manufacturing an ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting surgery, comprising the following steps:

[0018] S1. Obtain the three-dimensional boundary data of the jaw bone morphology and soft tissue in the patient's implant area, the three-dimensional boundary data of the roots of the mesial and distal adjacent teeth and the mandibular nerve canal, and obtain the three-dimensional surface data of the patient's dentition and gums;

[0019] S2. Taking the dentition as the common part, the three-dimensional boundary data of the jaw bone morphology and soft tissue of the implant area obtained in step S1, the three-dimensional boundary data of the roots of the mesiodistal adjacent teeth and the mandibular nerve canal, and the three-dimensional surface data of the dentition and gums are registered and fused into a unified coordinate system;

[0020] S3. Design the shape and three-dimensional position of the ideal crown in the anterior tooth area according to the registration fusion data obtained in S2;

[0021] S4. Design the ideal implant position based on the registration fusion data and design the baseplate according to the patient's 3D surface data;

[0022] S5. Reconstruct the final implant position and merge it with the baseplate;

[0023] S6. Establish a bone knife model;

[0024] S7. Copy multiple bone knife models, and place the bone knife models at the ideal cutting position according to the ideal implant position and the three-dimensional boundary data of the jaw bone morphology and soft tissue in the patient's implant area;

[0025] S8. Based on the obtained three-dimensional boundary data of the jaw morphology and soft tissue of the implant area, the three-dimensional boundary data of the roots of the mesiodistal adjacent teeth and the mandibular nerve canal, and the three-dimensional surface data of the dentition and gums, the jaw model, the bone knife model in the ideal position, and the ideal surgical cutting position are formed by software processing, and the corresponding transverse splitting path guide plate, the longitudinal splitting path guide plate, the mounting seat on the base plate, and the longitudinal splitting path guide plate distraction portion are designed using the guide plate design generation software;

[0026] S9. Complete the forming of the substrate, the transverse cleavage path guide and the longitudinal cleavage path guide.

[0027] Further, in step S7, the bone cutter model makes the bone cutter depth of transverse cutting at least 3 mm away from the ideal implant root apex, and makes the bone cutter position of longitudinal cutting at least 1 mm away from the adjacent tooth root.

[0028] Further, step S8 specifically includes:

[0029] S81. Create a cubic model that can wrap the bone knife, move it to the bone knife position and perform a Boolean subtraction operation with the jaw model and the bone knife model to form a transverse splitting path guide and a longitudinal splitting path guide;

[0030] S82. Design of mounting seat on the substrate based on the lateral splitting path guide structure;

[0031] S83. The longitudinal cutting path guide plate and the substrate are merged;

[0032] S84. Forming a first transverse splitting path guide plate, a second transverse splitting path guide plate and a third transverse splitting path guide plate with different cutting depths, the transverse cutting path guide plate root side and the bone surface are spaced 2mm;

[0033] S85. Based on the final cutting depth, offset the longitudinal splitting path guide coronally so that it is flush with the indicator point on the osteotome at the final transverse cutting position.

[0034] Beneficial effects of the present invention: An ultrasonic bone knife guiding guide plate assembly for alveolar bone splitting surgery and a preparation method thereof adopt a repair-oriented preoperative implant position design, and on this basis, an ideal bone knife cutting path is designed before surgery, and an ideal transverse splitting path guide plate and a longitudinal splitting path guide plate are designed according to the determined bone knife cutting path, and 3D printing technology is used to form them, and the manufacturing method is simple and practical; the combined use of the transverse splitting path guide plate and the longitudinal splitting path guide plate can accurately guide the preoperative cutting path, form an ideal bone plate, and achieve a good bone augmentation effect, while reducing surgical trauma, shortening the operation time, and avoiding damage to important anatomical structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the present invention;

[0036] Figure 2 It is a schematic diagram of the integrated structure of the substrate and the longitudinal splitting path guide plate;

[0037] Figure 3 is a schematic structural diagram of a first transverse splitting path guide plate;

[0038] Figure 4 is a schematic structural diagram of a second transverse splitting path guide plate;

[0039] Figure 5 is a schematic structural diagram of a third transverse splitting path guide plate;

[0040] Figure 6 Assembly drawing of the base plate and the lateral cleaving path guide.

[0041] Description of the accompanying drawings: 1, substrate; 101, transverse cleaving path guide plate mounting seat; 1011, substrate connecting rod; 1012, substrate connecting seat; 102, substrate mounting portion; 103, substrate retaining seat; 104, in-position indication window; 2, transverse cleaving path guide plate; 2', first transverse cleaving path guide plate; 2", second transverse cleaving path guide plate; 2"', third transverse cleaving path guide plate; 201, transverse path guide slit; 201', transverse path guide slit of the first transverse cleaving path guide plate; 201", transverse path guide slit of the second transverse cleaving path guide plate; 201"', transverse path guide slit of the third transverse cleaving path guide plate; 202, transverse splitting path guide plate connecting rod; 202', first transverse splitting path guide plate connecting rod; 202", second transverse splitting path guide plate connecting rod; 202"', third transverse splitting path guide plate connecting rod; 203, transverse splitting path guide plate connecting member; 203', first transverse splitting path guide plate connecting member; 203", second transverse splitting path guide plate connecting member; 203"', third transverse splitting path guide plate connecting member; 3, longitudinal splitting path guide plate; 301, longitudinal splitting path guide plate expansion portion; 302, wedge angle; 303, longitudinal path guide slit; 304, columnar expansion blade; 305, longitudinal splitting path guide plate body. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-6 The present invention is described in further detail.

[0043] The embodiment of the present invention discloses an ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting surgery, comprising:

[0044] The base plate 1 is embedded in the dental arch to form a guiding foundation when in use. The appearance of the base plate 1 is usually customized according to the specific shape of the patient's dental arch to ensure that it can be tightly and accurately embedded in the dental arch, which can help determine the position and range of the surgical area, provide clear guidance for the operation of the ultrasonic osteotome, and enable more accurate control of the cutting direction and depth of the osteotome to avoid damage to surrounding important tissues and structures, and provide a stable foundation for subsequent surgical guidance. It will not be repeated here;

[0045] The transverse splitting path guide plate 2 is arranged on the base plate 1, and is provided with a transverse guiding part for guiding and constraining the bone knife to perform transverse cutting on the alveolar bone. The transverse direction refers to the direction along the dentition, which will not be repeated here; the transverse splitting path guide plate 2 is usually tightly connected to the base plate 1 by means of a slot, a buckle, a screw fixation or bonding, etc., to ensure that no relative displacement occurs during the operation, which will not be repeated here; the transverse guiding part is generally a guiding groove or a guiding track with a certain width and depth, and its shape and size match the blade head of the ultrasonic bone knife, which can provide a clear cutting direction for the ultrasonic bone knife, perform transverse cutting according to the path planned before the operation, ensure that the width and position of the split alveolar bone meet the requirements of implant implantation, and limit the swing and deviation of the bone knife in the transverse direction, so as to avoid the bone knife accidentally injuring the surrounding important tissues, such as nerves, blood vessels and adjacent teeth, thereby improving the safety of the operation and improving the efficiency of the operation, which will not be repeated here;

[0046] The longitudinal splitting path guide plate 3 is arranged on the base plate 1, and is provided with a longitudinal guide part for guiding and constraining the bone knife to perform longitudinal cutting on the alveolar bone. The longitudinal direction refers to the inside and outside direction of the oral cavity, which will not be described in detail here. The longitudinal splitting path guide plate 3 usually adopts a high-precision adapter connection, such as a mortise and tenon structure, a precision buckle or a special screw fixation, etc., to ensure that the longitudinal splitting path guide plate 3 is tightly connected to the base plate 1 during the operation, and will not be loosened or shifted, etc., providing a stable guiding basis for the longitudinal cutting of the bone knife. The longitudinal guide part is generally designed as a narrow and long channel or track with a specific depth and width, and its size is precisely matched with the blade head of the ultrasonic bone knife, which can accommodate the bone knife and limit its freedom of movement in the longitudinal direction, so that the bone knife can cut according to the predetermined longitudinal path, accurately split the alveolar bone longitudinally, and create a suitable space for subsequent implant placement or other treatments. By constraining the movement of the bone knife, the bone knife is prevented from deviating from the predetermined path during the longitudinal cutting process, and damage to the surrounding important tissues and structures is prevented, thereby improving the safety of the operation and improving the efficiency of the operation. It will not be described in detail here.

[0047] In this embodiment, the longitudinal splitting path guide plate 3 is provided with a longitudinal splitting path guide plate expansion portion 301, and the longitudinal splitting path guide plate expansion portion 301 and the longitudinal splitting path guide plate 3 form a wedge angle 302, and the wedge angle 302 is used to expand the tissue of the alveolar bone and the labial side of the alveolar bone. As shown in the figure, the wedge angle 302 formed by the longitudinal splitting path guide plate expansion portion 301 and the longitudinal splitting path guide plate 3 is usually determined according to the anatomical structure of the alveolar bone and the actual needs of the operation. This angle will be within a specific range, which can effectively expand the alveolar bone and the labial side of the alveolar bone. tissue without causing excessive damage to surrounding tissues; when the ultrasonic bone knife cuts the alveolar bone longitudinally along the longitudinal guide portion, the longitudinal splitting path guide plate expansion portion 301 will gradually enter the gap between the alveolar bone and the labial tissue of the alveolar bone as the bone knife is advanced. Due to the existence of the wedge angle 302, as the longitudinal splitting path guide plate 3 goes deeper, the longitudinal splitting path guide plate expansion portion 301 will generate an outward component force on the tissues on both sides, thereby gradually expanding the alveolar bone and the labial tissue of the alveolar bone, increasing the surgical operation space, and reducing the risk of tissue damage. It will not be repeated here.

[0048] In this embodiment, a mounting seat 101 for mounting a transverse splitting path guide plate is provided on the substrate 1. The mounting seat 101 is fixed to the substrate 1 and is provided with a mounting portion 102 for detachably mounting the transverse splitting path guide plate. As shown in the figure, the transverse splitting path guide plate mounting seat 101 includes a substrate connecting rod 1011 and a substrate connecting seat 1012. The substrate connecting rod 1011 connects the substrate connecting seat 1012 with the substrate to form a whole, thereby ensuring a stable connection with the substrate and providing a specific interface for the installation of the transverse splitting path guide plate 2, so that the transverse splitting path guide plate 2 can be accurately positioned on the substrate, ensuring that the transverse guide portion maintains a correct spatial position relationship with the target area of ​​the alveolar bone. The system helps to improve the accuracy of the operation. At the same time, the transverse splitting path guide plate mounting seat 101 provides a stable support for the transverse splitting path guide plate 2, so that it will not be deformed or shifted when subjected to the vibration and cutting force of the ultrasonic bone knife, thereby ensuring the stability of the surgical operation; the substrate mounting portion 102 is a hole groove structure on the top of the substrate connecting seat, which is compatible with the transverse splitting path guide plate 2. The substrate mounting portion 102 adopts a detachable installation design, so that when the transverse splitting path guide plate needs to be replaced, cleaned or repaired, it can be operated conveniently without large-scale disassembly of the entire substrate or related equipment, thereby reducing the preparation time before the operation and the adjustment time during the operation, and improving the surgical efficiency. It will not be repeated here.

[0049] In this embodiment, the transverse guide portion is a transverse path guide slit 201 provided on the transverse splitting path guide plate 2, and the longitudinal guide portion is two vertical longitudinal path guide slits 303 provided in parallel on the longitudinal splitting path guide plate 3. The transverse path guide slit 201 is provided on the transverse splitting path guide plate 2. The width and shape of the transverse path guide slit 201 are precisely matched with the blade head of the ultrasonic bone knife, which can provide accurate transverse cutting guidance for the bone knife, ensure that the bone knife always moves along the predetermined transverse path during the cutting process, avoid deviation of the cutting direction, and improve the accuracy and efficiency of the surgical operation; the longitudinal path guide slit 303 is provided on the longitudinal splitting path guide The double guide slits are arranged on the plate 3 and are arranged vertically in parallel, which can provide more stable guidance for the ultrasonic bone knife during the longitudinal cutting process. Compared with a single guide slit, the double guide slits can better limit the swing and deviation of the bone knife in the longitudinal direction, ensure that the bone knife cuts along a predetermined longitudinal path, and improve the accuracy and stability of the longitudinal cutting. The longitudinal path guide slit 303 works in coordination with the transverse path guide slit 201, so that the transverse cutting and longitudinal cutting of the alveolar bone can be better connected. After the transverse cutting is completed, the bone knife is accurately guided to perform the longitudinal splitting operation through the longitudinal path guide slit 303, ensuring the continuity and accuracy of the entire alveolar bone splitting process, which will not be repeated here.

[0050] The transverse splitting path guide plate 2 comprises a first transverse splitting path guide plate 2', a second transverse splitting path guide plate 2", and a third transverse splitting path guide plate 2'' for guiding the bone knife to sequentially deepen the cutting depth. The transverse path guide slit 201' of the first transverse splitting path guide plate is 6.5-7mm high from the alveolar bone, the transverse path guide slit 201' of the second transverse splitting path guide plate is 4.5-5mm high from the alveolar bone, and the transverse path guide slit 201'' of the third transverse splitting path guide plate is 2.5-3.5mm high from the alveolar bone. The bone knife is provided with a fixing portion adapted to the transverse path guide slit 201, which can closely cooperate with the transverse path guide slit 201 to ensure During the operation, the bone knife moves along a predetermined path and direction, which enhances the stability of the bone knife when in use, prevents it from shaking or shifting during the cutting process, and ensures the accuracy and safety of the surgical operation. It will not be repeated here; the first transverse splitting path guide plate 2', the second transverse splitting path guide plate 2" and the third transverse splitting path guide plate 2"' are used to meet the requirements of the alveolar bone cutting depth at different stages of the operation. Each transverse splitting path guide plate 2 corresponds to a specific cutting depth. Through a step-by-step approach, accurate and safe transverse cutting of the alveolar bone is achieved, avoiding damage to important structures such as nerves and blood vessels under the alveolar bone due to excessive cutting at one time, thereby improving the safety of the operation. It will not be repeated here.

[0051] In the present embodiment, the base plate 1 comprises a base plate retaining seat 103 which is conformed to the dental arch and is externally embedded in the dental arch for fixation. The base plate retaining seat 103 extends to both sides at a set length relative to the surgical position, and the base plate retaining seat 103 is provided with a plurality of positioning indication windows 104 for observing the positioning status of the base plate retaining seat 103. The base plate retaining seat 103 extends to both sides at a set length relative to the surgical position, which is determined based on the oral anatomical structure and surgical operation requirements. The set length extended to both sides relative to the surgical position can correspond to the alveolar bone and other parts of the surgical area in the horizontal direction, and the length can cover the range required for the surgery, thereby providing a stable retention foundation for the entire guide plate assembly, providing a stable platform for the subsequent operation of the transverse splitting path guide plate 2 and the longitudinal splitting path guide plate 3 as well as the bone knife, avoiding the guide plate displacement during the operation, allowing the bone knife to cut according to the preset path, and reducing surgical errors. , thereby improving the success rate of subsequent operations such as implant placement and reducing the risk of surgical failure; the length of the base plate retaining seat 103 is designed based on the oral anatomical structure. While ensuring stability, it will not excessively increase the patient's discomfort. Compared with the unstable short base plate that may cause prolonged operation time and repeated adjustments, this stable long base plate design helps to shorten the operation time and reduce the patient's pain during the operation, which will not be repeated here; the base plate 1 is installed in the patient's mouth, and the fit of the guide plate with the teeth and alveolar bone is observed through the in-situ indicator window 104, which assists in the installation of the transverse splitting path guide plate 2 and the longitudinal splitting path guide plate 3, thereby improving the efficiency of surgical preparation; during the operation, the in-situ indicator window 104 can also be used to monitor the stability of the guide plate in real time. By observing the marks in the in-situ indicator window 104 or the changes in the relative position with the surrounding tissues, timely discover and take measures to make adjustments, thereby improving the efficiency and quality of the operation, which will not be repeated here.

[0052] In this embodiment, the longitudinal splitting path guide plate 3 is integrally formed with the base plate 1, and the longitudinal splitting path guide plate expansion portion 301 includes two columnar expansion blades 304 arranged in parallel, and the columnar expansion blade 304 is a wedge-shaped one that is larger at the top and smaller at the bottom. The longitudinal path guide seam 303 avoids the columnar expansion blade 304 in the surgical direction. As shown in the figure, the longitudinal splitting path guide plate 3 includes a longitudinal splitting path guide plate body 305 and a columnar expansion blade 304. The longitudinal splitting path guide plate body 305 and the columnar expansion blade 304 are integrally formed to form the longitudinal splitting path guide plate 3. The columnar expansion blade 304 is also integrally formed with the base plate 1, and finally a one-piece structure of the longitudinal splitting path guide plate 3 and the base plate 1 is formed, which enhances the stability and reliability of the entire structure. Compared with the splicing structure, the one-piece molding reduces the connection gap between the components, reduces the risk of affecting the surgical operation due to loose components during the operation, and improves the surgical operation. The two cylindrical expansion blades 304 of the expansion part 301 of the longitudinal splitting path guide plate are arranged in parallel along the horizontal direction, and adopt a wedge-shaped design with a larger upper part and a smaller lower part along the inside and outside direction of the oral cavity. During the operation, the bone tissue can be gradually expanded. The larger upper part can provide a larger contact area, and the force can be dispersed more evenly when external force is applied to avoid local excessive damage to the bone tissue. The smaller lower part is convenient for insertion into the splitting gap of the bone tissue. As the insertion depth increases, the expansion effect becomes gradually obvious. The longitudinal path guide seam 303 avoids the cylindrical expansion blade 304 in the surgical direction, ensuring that during the operation, the bone knife can smoothly perform the cutting operation along the preset longitudinal path guide seam 303 without being interfered by the cylindrical expansion blade 304, and also ensuring that the cylindrical expansion blade 304 will not affect the expansion effect or cause damage to the instrument due to conflict with the path of the bone knife when expanding the bone tissue.

[0053] In this embodiment, a transverse splitting path guide plate mounting seat 101 is integrally formed on the substrate 1, and the transverse splitting path guide plate 2 is detachably mounted on the transverse splitting path guide plate mounting seat 101 by plugging. As shown in the figure, the transverse splitting path guide plate mounting seat 101 includes a substrate connecting rod 1011 and a substrate connecting seat 1012. The substrate connecting seat 1012 and the substrate connecting rod 1011 are integrally formed to form the transverse splitting path guide plate mounting seat 101. The substrate connecting rod 1011 is integrally formed with the substrate 1. The lateral cleavage path guide plate 2 is detachably mounted on the lateral cleavage path guide plate mounting seat 101 by plugging. As shown in the figure, the lateral cleavage path guide plate 2 includes a mounting structure that is compatible with the lateral cleavage path guide plate mounting seat 101 on the substrate. The mounting structure includes a lateral cleavage path guide plate mounting seat 101 on the substrate. The plate connecting rod 202 and the transverse splitting path guide plate connecting piece 203 matched with the transverse splitting path guide plate mounting seat 101 on the base plate, the transverse splitting path guide plate 2 is matched with the transverse splitting path guide plate mounting seat 101 on the base plate through the transverse splitting path guide plate connecting piece 203 to achieve detachable installation, which will not be repeated here; this design makes the entire structure highly flexible. During the operation, when the transverse splitting path guide plate 2 needs to be replaced with a transverse splitting path guide plate 2 of different cutting depths according to different surgical requirements, , the transverse splitting path guide plate 2 can be easily and quickly removed from the transverse splitting path guide plate mounting seat 101, and then the transverse splitting path guide plate 2 of the required cutting depth can be inserted, which not only saves the time of replacing the transverse splitting path guide plate 2 and reduces the maintenance cost, but also facilitates the standardized production of the transverse splitting path guide plate 2. As long as the transverse splitting path guide plates 2 of different cutting depths meet the plug-in specification requirements, they can be used in conjunction with the same transverse splitting path guide plate mounting seat 101, thereby improving the versatility and adaptability of the equipment.

[0054] The present invention also discloses a method for manufacturing an ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting surgery, comprising the following steps:

[0055] S1. Obtain the three-dimensional boundary data of the jaw bone morphology and soft tissue in the implant area of ​​the patient by taking cone beam computed tomography, as well as the three-dimensional boundary data of the roots of the mesial and distal adjacent teeth and the mandibular nerve canal, and obtain the three-dimensional surface data of the patient's dentition and gums by an intraoral three-dimensional scanner;

[0056] S2. Taking the dentition as a common part, which means that the oral vestibule and the proper oral cavity are bounded by the dentition, which will not be described in detail here; the three-dimensional boundary data of the jaw bone morphology and soft tissue of the implant area, the three-dimensional boundary data of the roots of the mesiodistal adjacent teeth and the mandibular nerve canal, and the three-dimensional surface data of the dentition and gums obtained in step S1 are aligned and fused into a unified coordinate system;

[0057] S3. Design the shape and three-dimensional position of the ideal crown in the anterior tooth area according to the registration fusion data obtained in S2;

[0058] S4. Design an ideal implant position based on the registration fusion data and restoration-oriented, and design a base plate 1 based on the patient's dentition three-dimensional surface data;

[0059] S5. Reconstruct the final implant position and merge it with base plate 1;

[0060] S6. Establish a bone knife model;

[0061] S7. Copy multiple bone knife models, and place the bone knife models at the ideal cutting position according to the ideal implant position and the three-dimensional boundary data of the jaw bone morphology and soft tissue in the patient's implant area;

[0062] S8. Based on the data obtained by cone beam computed tomography and intraoral three-dimensional scanner, the jaw model, the bone knife model in the ideal position and the ideal surgical cutting position are formed by software processing, and the corresponding transverse splitting path guide plate 2, the longitudinal splitting path guide plate 3, the transverse splitting path guide plate mounting seat 101 and the longitudinal splitting path guide plate expansion portion 301 are designed using the guide plate design generation software;

[0063] S9. The forming of the substrate 1, the transverse cleavage path guide plate 2 and the longitudinal cleavage path guide plate 3 is completed.

[0064] In this embodiment, in step S7, the bone knife model makes the transverse cutting bone knife depth at least 3mm away from the ideal implant root apex, and makes the longitudinal cutting bone knife position ensure at least 1mm distance from the adjacent tooth root. The transverse cutting bone knife depth is at least 3mm away from the ideal implant root apex. This is because after the implant is implanted, there needs to be enough bone tissue around it to provide support and fixation to achieve initial stability. If the transverse cutting depth is too deep and too close to the implant root apex, the integrity of the bone structure around the implant root apex will be destroyed, resulting in insufficient bone volume, and insufficient support for the implant, thereby affecting the initial stability of the implant, increasing the risk of implant loosening and falling off, and retaining the root apex. A certain thickness of bone tissue is also beneficial to the healing and reconstruction of bone tissue after surgery, thereby improving the success rate of implant surgery; the position of the bone knife for longitudinal cutting should ensure a safe distance of at least 1mm from the adjacent tooth roots to avoid damaging the adjacent natural tooth roots. There are abundant periodontal membranes, blood vessels, nerves and other tissues around the natural tooth roots. If the bone knife is too close to the adjacent tooth roots during longitudinal cutting, it may directly cut the tooth roots, leading to serious complications such as root fracture and pulp exposure, affecting the normal function and service life of natural teeth. At the same time, protecting the periodontal tissue around the adjacent tooth roots is also beneficial to maintaining a healthy periodontal environment in the oral cavity and reducing the occurrence of complications such as postoperative infection and pain. I will not go into details here.

[0065] In this embodiment, step S8 specifically includes:

[0066] S81. Create a cubic model that can wrap the bone knife, move it to the position of the bone knife, and perform Boolean subtraction operation with the jaw model and the bone knife model to form a transverse splitting path guide plate 2 and a longitudinal splitting path guide plate 3. The cubic model simulates the ideal transverse splitting path guide plate 2 and the longitudinal splitting path guide plate 3 according to the position of the bone knife and the jaw model and the bone knife model through software. At the same time, it can be personalized according to the characteristics of the patient to improve the accuracy of the actual operation, which will not be repeated here;

[0067] S82. A lateral cleavage path guide plate mounting seat 101 on the substrate according to the structural design of the lateral cleavage path guide plate 2;

[0068] S83. The longitudinal cutting path guide plate 3 is merged with the substrate 1;

[0069] S84. A first transverse splitting path guide plate 2', a second transverse splitting path guide plate 2" and a third transverse splitting path guide plate 2"' are formed to guide different cutting depths. The root of the transverse cutting path guide plate is 2mm away from the bone surface, providing space for the entry of cooling water. During the operation, the cutting operation will generate a large amount of heat. If the heat is not dissipated in time, it may cause thermal damage to the bone tissue, affecting the surgical effect and the patient's postoperative recovery. Through the gap between the root of the transverse cutting path guide plate and the bone surface, the cooling water can smoothly flow into the cutting area, take away the heat, maintain the normal physiological temperature of the bone tissue, and reduce the risk of thermal damage;

[0070] S85. Based on the final cutting depth, offset the longitudinal splitting path guide coronally so that it is flush with the indicator point on the osteotome at the final transverse cutting position.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An ultrasonic osteotome guide plate assembly for alveolar bone splitting, characterized in that: include: The base plate is embedded in the dental arch to form a guiding foundation when in use; A transverse splitting path guide plate is arranged on the base plate and is provided with a transverse guide portion for guiding and constraining the osteotome to perform transverse cutting on the alveolar bone; The longitudinal splitting path guide plate is arranged on the base plate and is provided with a longitudinal guide part for guiding and constraining the bone knife to perform longitudinal cutting on the alveolar bone.

2. The ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting according to claim 1, characterized in that: The longitudinal splitting path guide plate is provided with a longitudinal splitting path guide plate expansion portion, and the longitudinal splitting path guide plate expansion portion forms a wedge angle with the longitudinal splitting path guide plate, and the wedge angle is used to expand the alveolar bone and the tissue on the labial side of the alveolar bone.

3. The ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting according to claim 1, characterized in that: A mounting seat for mounting the transverse cleaving path guide plate is disposed on the base plate. The mounting seat is fixed to the base plate and is provided with a mounting portion for detachably mounting the transverse cleaving path guide plate.

4. The ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting according to claim 1, characterized in that: The transverse guide portion is a transverse path guide slit provided on the transverse split path guide plate, and the longitudinal guide portion is two vertical longitudinal path guide slits provided in parallel on the longitudinal split path guide plate; The transverse splitting path guide plate includes a first transverse splitting path guide plate, a second transverse splitting path guide plate and a third transverse splitting path guide plate for guiding the bone knife to sequentially deepen the cutting depth. The height of the transverse path guide seam of the first transverse splitting path guide plate from the alveolar bone is 6.5-7mm, the height of the transverse path guide seam of the second transverse splitting path guide plate from the alveolar bone is 4.5-5mm, and the height of the transverse path guide seam of the third transverse splitting path guide plate from the alveolar bone is 2.5-3.5mm.

5. The ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting according to claim 3, characterized in that: The base plate includes a base plate retaining seat which conforms to the dental arch and is embedded in the dental arch for fixation. The base plate retaining seat extends to both sides by a set length relative to the surgical position, and the base plate retaining seat is provided with a plurality of positioning indicator windows for observing the positioning status of the base plate retaining seat.

6. The ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting according to claim 2, characterized in that: The longitudinal splitting path guide plate is integrally formed with the base plate, and the longitudinal splitting path guide plate expansion portion includes two columnar expansion blades arranged in parallel, the columnar expansion blades are wedge-shaped with a larger upper portion and a smaller lower portion, and the longitudinal path guide seam avoids the columnar expansion blades in the surgical direction.

7. The ultrasonic osteotome guiding guide plate assembly for alveolar bone splitting according to claim 4, characterized in that: A transverse splitting path guide plate mounting seat is integrally formed on the base plate, and the transverse splitting path guide plate is detachably mounted on the transverse splitting path guide plate mounting seat by plugging.

8. A method for manufacturing an ultrasonic osteotome guiding plate assembly for alveolar bone splitting according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Obtain the three-dimensional boundary data of the jaw bone morphology and soft tissue in the patient's implant area, the three-dimensional boundary data of the roots of the mesial and distal adjacent teeth and the mandibular nerve canal, and obtain the three-dimensional surface data of the patient's dentition and gums; S2. Taking the dentition as the common part, the three-dimensional boundary data of the jaw bone morphology and soft tissue of the implant area obtained in step S1, the three-dimensional boundary data of the roots of the mesiodistal adjacent teeth and the mandibular nerve canal, and the three-dimensional surface data of the dentition and gums are registered and fused into a unified coordinate system; S3. Design the shape and three-dimensional position of the ideal crown in the anterior tooth area based on the registration fusion data obtained in S2; S4. Design the ideal implant position based on the registration fusion data and design the baseplate according to the patient's 3D surface data; S5. Reconstruct the final implant position and merge it with the baseplate; S6. Establish a bone knife model; S7. Copy multiple bone knife models, and place the bone knife models at the ideal cutting position according to the ideal implant position and the three-dimensional boundary data of the jaw bone morphology and soft tissue in the patient's implant area; S8. Based on the obtained three-dimensional boundary data of the jaw morphology and soft tissue of the implant area, the three-dimensional boundary data of the roots of the mesiodistal adjacent teeth and the mandibular nerve canal, and the three-dimensional surface data of the dentition and gums, the jaw model, the bone knife model in the ideal position, and the ideal surgical cutting position are formed by software processing, and the corresponding transverse splitting path guide plate, the longitudinal splitting path guide plate, the mounting seat on the base plate, and the longitudinal splitting path guide plate distraction portion are designed using the guide plate design generation software; S9. Complete the forming of the substrate, the transverse cleavage path guide and the longitudinal cleavage path guide.

9. The method for manufacturing an ultrasonic osteotome guiding plate assembly for alveolar bone splitting according to claim 8, characterized in that: In step S7, the bone cutter model is used so that the depth of the transverse cutting bone cutter is at least 3 mm away from the ideal implant root apex, and the position of the bone cutter for longitudinal cutting should be at least 1 mm away from the adjacent tooth root.

10. The method for manufacturing an ultrasonic osteotome guiding plate assembly for alveolar bone splitting according to claim 8, characterized in that: Step S8 specifically includes: S81. Create a cubic model that can wrap the bone knife, move it to the bone knife position and perform a Boolean subtraction operation with the jaw model and the bone knife model to form a transverse splitting path guide and a longitudinal splitting path guide; S82. Design of mounting seat on the substrate based on the lateral splitting path guide structure; S83. The longitudinal cutting path guide plate and the substrate are merged; S84. Forming a first transverse splitting path guide plate, a second transverse splitting path guide plate and a third transverse splitting path guide plate with different cutting depths, the transverse cutting path guide plate root side and the bone surface are spaced 2mm; S85. Based on the final cutting depth, offset the longitudinal splitting path guide coronally so that it is flush with the indicator point on the osteotome at the final transverse cutting position.

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