An individualized adjustable osteotomy nail guide plate

Abstract

The application provides a personalized adjustable osteotomy nail placement guide, belonging to the technical field of medical devices. The personalized adjustable osteotomy nail placement guide comprises a positioning plate composed of a fixed stand, a conformal plate, a threaded hole A, a first scale, a butt joint hole A, and a fixed hole A. The combination of the reference positioning of the conformal plate, the angle adjustment of the first scale, and multiple fixed holes and locking bolts ensures the stability and accuracy of the guide during the operation. These designs enable surgeons to accurately control the position of osteotomy and nail placement during surgery, reducing human error and significantly improving the success rate of surgery and the recovery effect of patients. By using a guide with multiple scales and adjustment components, doctors can accurately adjust the position and angle of osteotomy according to the specific anatomical structure of the patient. This improves the accuracy of the operation, reduces the risk of surgery, helps patients recover after surgery, and reduces complications caused by surgical errors.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a personalized adjustable osteotomy nail placement guide plate. Background Art

[0002] In orthopedic surgery, bone osteotomy and nail placement are crucial to the success of the operation and the patient's recovery. Current osteotomy and nail placement guides serve as auxiliary positioning tools, mainly used to help surgeons perform stable and precise bone cutting and nail placement during surgery.

[0003] Limited Angle Adjustment: Traditional guides are relatively fixed in structure and can usually only be adjusted within a limited range of directions and angles. This limitation makes it difficult for surgeons to meet the demands of multi-angle and different axis osteotomies during complex bone surgeries, which can easily lead to deviations during the surgery and increase the complexity and difficulty of the surgery.

[0004] Single-axis adjustment: Existing guides are often only adjustable along a single axis or direction, lacking flexibility. If fine-tuning along multiple axes is required, the guide must be replaced or manually repositioned, which is not only time-consuming but also prone to guide misalignment, impacting the final surgical outcome.

[0005] Lack of stable multi-point fixation: Traditional guide plate fixation methods are often relatively simple, using a single bolt or clamping structure, which is prone to slight loosening or slipping during operation. This can further increase operational errors and affect surgical precision, especially in long and complex surgeries.

[0006] Unable to simultaneously address osteotomy and screw placement: Most current guides can only perform a single function, either for osteotomy positioning or screw placement guidance, and are unable to simultaneously address both procedures. Consequently, surgeons must perform additional guide switching, increasing surgical steps and patient risk. Summary of the Invention

[0007] The purpose of the present invention is to provide a personalized adjustable osteotomy nail placement guide plate, aiming to solve some problems of the osteotomy guide plate in the prior art in terms of angle adjustment, position determination, multi-axis linkage, multi-function, and locking difference.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A personalized adjustable osteotomy screw placement guide, including:

[0010] A positioning plate, which consists of a fixed column, a fitting plate, a threaded hole A, a first scale, a docking hole A, and a fixing hole A, and is used to locate a specific position of the bone. The first scale has a 0-360° scale on the surface for adjusting the rotation angle around the axis;

[0011] A fixed rotating sleeve, which consists of a sleeve A, a sleeve hole, an arrow B, a short shaft B, and a threaded hole C, and is docked with the positioning plate, wherein the arrow B is used to indicate the rotation angle of the short shaft B relative to the docking hole A;

[0012] The slide rod is composed of a threaded hole B, a long axis, an arrow A and a short axis A. The long axis is used to pass through the fixed rotating sleeve and can slide axially along the long axis to adjust the position;

[0013] A fixing bolt, which consists of a transverse groove, a stud and a bolt cap, is used to connect the slide rod after passing through the fixed rotating sleeve. The fixing bolt restricts the slide rod to prevent it from sliding out;

[0014] A movable rotating sleeve, which consists of a second scale, a short axis C, a threaded hole D, an arrow C, and a sleeve B. The sleeve B partially docks with the short axis A. The upper outer side of the sleeve B has a 0-360° scale for adjusting the rotation angle of the arrow A;

[0015] The slide guide plate is composed of a threaded hole E, a fixing hole B, an osteotomy groove A, a guide plate body A, a threaded hole F, a third scale, a slide and a docking hole B, wherein the docking hole B, the osteotomy groove A and the fixing hole B are used to adjust the length and fix the position;

[0016] The slide rail guide plate is composed of a slide rail, an osteotomy groove B, a fixing hole C and a guide plate body B. The slide rail guide plate slides relative to the slide groove guide plate to adjust the guide plate length;

[0017] The locking bolt is used to lock the position, and the locking degree is adjusted by rotating the cross nut.

[0018] As a preferred solution of the present invention, the threaded hole A in the middle of the docking hole A is used to connect a locking bolt to fix the fixed rotating sleeve that has been adjusted in position to prevent displacement.

[0019] As a preferred solution of the present invention, the threaded hole B is used to fix the connection of the bolt to prevent the long shaft from sliding out when sliding.

[0020] As a preferred solution of the present invention, the short axis B moves axially relative to the docking hole A to adjust the position of the fixed rotating sleeve. The sleeve B slides axially to adjust the position and is fixed by connecting the locking bolt through the threaded hole D. The osteotomy groove A is used for osteotomy guidance, and the fixing hole B is used to fix the slide guide after adjusting the final position.

[0021] As a preferred solution of the present invention, the osteotomy groove B is used for osteotomy guidance, and the fixing hole C is used for fixing the slide rail guide plate after adjusting the final position, and can be replaced with other structures to achieve functional expansion. The slide groove and the slide rail are partially connected, and the relative sliding of the two is used to adjust the length of the slide groove guide plate and the slide rail guide plate.

[0022] As a preferred solution of the present invention, the fixing hole B and the guide plate body A are used to adjust the rotation angle of the short axis C, and the locking bolt adjusts the locking degree by rotating the cross nut, which is used to fix the adjusted position of the slide guide plate and the slide rail guide plate.

[0023] As a preferred solution of the present invention, the fitting plate is designed to fit on a selected bone position for reference positioning. The transverse groove facilitates rapid adjustment and locking during surgery. The arrow A is used to indicate the relative rotation angle between the rotating sleeve and the short axis A.

[0024] As a preferred solution of the present invention, the sleeve A is used for the long axis to pass through, ensuring that the slide rod can slide along its long axis, and the short axis C is partially docked with the docking hole B on the slide guide plate. The surface of the short axis C is fixedly connected with an arrow C, which is used to indicate the rotation angle of the short axis of the movable sleeve relative to the docking hole B.

[0025] As a preferred solution of the present invention, the slide groove and the slide rail are partially connected, and the two slide relative to each other to adjust the length of the guide plate, and the slide rail guide plate can be replaced with other structures to achieve functional expansion.

[0026] As a preferred solution of the present invention, the locking bolt is used to fix and lock multiple components to ensure the stability and accuracy of the guide plate during surgery.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The reference positioning of the compliant plate, the angle adjustment of the first scale, and the combined use of multiple fixing holes and locking bolts ensure the stability and accuracy of the guide plate during surgery. These designs enable surgeons to precisely control the position of osteotomy and screw placement during surgery, reducing human error and significantly improving surgical success rates and patient recovery outcomes. By using a guide plate with multiple scales and adjustment components, the surgeon can precisely adjust the osteotomy position and angle based on the patient's specific anatomy. This improves surgical accuracy, reduces surgical risks, facilitates patient recovery, and reduces complications caused by surgical errors.

[0029] 2. Doctors can quickly adjust the guide plate according to the patient's actual situation, reducing surgical preparation time and intraoperative adjustment time, and improving surgical efficiency. At the same time, the modular design of the guide plate makes cleaning, disinfection and maintenance more convenient, further optimizing the surgical process, including the axial sliding of the slide rod, the rotation angle adjustment of the movable rotating sleeve, and the length adjustment of the slide guide plate and the slide rail guide plate. This high degree of flexibility allows the guide plate to adapt to the bone structure and surgical needs of different patients, providing effective support for both simple osteotomy and complex multi-site surgery. In addition, the replaceable design of the fixing hole C further expands the function of the guide plate, making it suitable for more types of surgical scenarios.

[0030] 3. The locking function of the locking bolt ensures the stability of the guide during surgery. This helps prevent displacement of the guide during surgery, reduces surgical risks, and ensures patient safety. Furthermore, precise osteotomy and screw placement help reduce postoperative complications and improve patients' quality of life. The transverse groove of the fixing bolt facilitates quick adjustment and locking, and the cross-shaped nut design of the locking bolt makes adjustment even more convenient. These designs not only simplify the surgical procedure but also shorten surgical preparation and actual operation time, reducing the surgeon's workload and improving the overall efficiency of the surgery. Furthermore, the modular design of the guide allows each component to be replaced and maintained independently, extending the guide's service life and reducing medical costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 It is a main perspective view of the present invention;

[0033] Figure 2 This is an exploded view of the positioning plate in the present invention;

[0034] Figure 3 This is an exploded view of the fixing bolt in the present invention;

[0035] Figure 4 This is an exploded view of the slide bar in the present invention;

[0036] Figure 5 This is an exploded view of the fixed rotating sleeve in the present invention;

[0037] Figure 6 It is an exploded view of the movable rotating sleeve in the present invention;

[0038] Figure 7 This is an exploded view of the chute guide plate in the present invention;

[0039] Figure 8 This is an exploded view of the slide rail guide plate in the present invention.

[0040] In the figure: 1. Positioning plate; 101. Fixed column; 102. Attachment plate; 103. Threaded hole A; 104. First scale; 105. Docking hole A; 106. Fixed hole A; 2. Fixing bolt; 201. Horizontal groove; 202. Stud; 203. Bolt cap; 3. Sliding rod; 301. Threaded hole B; 302. Major axis; 303. Arrow A; 304. Minor axis A; 4. Fixed rotating sleeve; 401. Sleeve A; 402. Sleeve hole; 403. Arrow B; 404. Minor axis B; 405. Threaded hole C; 5. Movable rotating sleeve; 501. Second scale; 502. Short axis C; 503. Threaded hole D; 504. Arrow C; 505. Sleeve B; 6. Slide guide plate; 601. Threaded hole E; 602. Fixing hole B; 603. Osteotomy groove A; 604. Guide plate body A; 605. Threaded hole F; 606. Third scale; 607. Slide; 608. Docking hole B; 7. Slide rail guide plate; 701. Slide rail; 702. Osteotomy groove B; 703. Fixing hole C; 704. Guide plate body B; 8. Locking bolt. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1

[0043] See also Figures 1-8 , the present invention provides the following technical solutions:

[0044] A personalized adjustable osteotomy screw placement guide, including:

[0045] Positioning plate 1, which consists of a fixed column 101, a fitting plate 102, a threaded hole A103, a first scale 104, a docking hole A105, and a fixing hole A106. It is used to locate a specific position of the bone. The first scale 104 has a 0-360° scale on the surface for adjusting the rotation angle around the axis;

[0046] The fixed rotating sleeve 4 consists of a sleeve A401, a sleeve hole 402, an arrow B403, a short shaft B404 and a threaded hole C405, and is docked with the positioning plate 1, wherein the arrow B403 is used to indicate the rotation angle of the short shaft B404 relative to the docking hole A105;

[0047] Sliding rod 3, which consists of a threaded hole B301, a long axis 302, an arrow A303 and a short axis A304. The long axis 302 is used to pass through the fixed rotating sleeve 4 and can slide axially along the long axis 302 to adjust the position;

[0048] The fixing bolt 2 is composed of a transverse groove 201, a stud 202 and a bolt cap 203, and is used to connect the slide bar 3 after passing through the fixed rotating sleeve 4. The fixing bolt 2 restricts the slide bar 3 to prevent it from sliding out;

[0049] The movable rotating sleeve 5 consists of a second scale 501, a short shaft C502, a threaded hole D503, an arrow C504, and a sleeve B505. The sleeve B505 partially butts against the short shaft A304. The outer side of the sleeve B505 has a 0-360° scale for adjusting the rotation angle of the arrow A303.

[0050] The chute guide plate 6 consists of a threaded hole E601, a fixing hole B602, an osteotomy groove A603, a guide plate body A604, a threaded hole F605, a third scale 606, a chute 607, and a docking hole B608. The docking hole B608, the osteotomy groove A603, and the fixing hole B602 are used to adjust the length and fix the position.

[0051] The slide rail guide plate 7 is composed of a slide rail 701, an osteotomy groove B702, a fixing hole C703 and a guide plate body B704. The slide rail guide plate 7 slides relative to the slide groove guide plate 6 to adjust the guide plate length;

[0052] The locking bolt 8 is used to lock the position, and the locking degree is adjusted by rotating the cross nut.

[0053] In a specific embodiment of the present invention, the fixed column 101 is fixed to the surgical site to ensure the stability of the guide plate. The conforming plate 102 fits the bone surface to increase the friction between the guide plate and the bone to prevent movement. The threaded hole A103 is used to fix the column 101 and the conforming plate 102. The first scale 104 is marked with a 0-360° scale on the surface to adjust the rotation angle around the axis to ensure accurate alignment with the surgical area. The docking hole A105 is docked with the fixed rotating sleeve 4 to achieve the rotation function. The fixing hole A106 is used to fix the positioning plate 1 on the bone. The sleeve A401 provides a stable rotation center. The sleeve hole 402 is used to pass through the slide rod 3 to achieve the sliding and rotation functions. The arrow B4 03: Indicates the rotation angle, short axis B404: Connects the sleeve A401 and other components, threaded hole C405: Used to fix the rotating sleeve 4, threaded hole B301: Used in conjunction with the fixing bolt 2 to fix the position of the slide bar 3, long axis 302: Realizes the sliding function, arrow A303: Indicates the rotation direction, short axis A304: Connects the movable rotating sleeve 5, horizontal groove 201: Convenient for tightening or loosening with a screwdriver, stud 202: Cooperates with the threaded hole on the slide bar 3 to fix the slide bar 3, bolt cap 203: Protects the head of the stud 202 to avoid damaging soft tissue, second scale 501: Indicates the rotation angle, short axis C502: Connects the sleeve B505 and other components, threaded hole D503: Used to fix the movable rotating sleeve 5, arrow C504: indicates the rotation direction, sleeve B505: provides rotation function, threaded hole E601: fixes the slide guide 6, fixing hole B602: fixes the guide position, osteotomy groove A603: guides the surgical tool path, guide body A604: main structure, threaded hole F605: fixes the slide guide 6, third scale 606: indicates length adjustment, slide 607: allows the slide guide 7 to slide, docking hole B608: docks other components, slide rail 701: slides in the slide 607, osteotomy groove B702: guides the surgical tool path, fixing hole C703: fixes the guide position, guide body B704: main structure, locking bolt 8: Adjust the locking degree by rotating the cross nut to ensure that all components are tightly connected to prevent displacement during the operation. Select a suitable positioning plate 1 according to the patient's specific bone condition and fix it to the bone through the fixing hole A106. Adjust the position of the slide bar 3 so that the arrow A303 points to the required angle, and then use the fixing bolt 2 to fix the slide bar 3. According to the needs of the operation, adjust the rotation angle of the movable rotating sleeve 5 and fix the position through the threaded hole D503. Insert the slide rail guide 7 into the slide groove 607 of the slide groove guide 6, adjust the length according to the specific needs of the surgical site, and finally use the locking bolt 8 to lock the position. Before the operation, confirm again that all components have been correctly installed and secure to ensure the safety of the operation.

[0054] For details, please refer to Figures 1-8The threaded hole A103 in the middle of the docking hole A105 is used to connect the locking bolt 8 to fix the fixed rotating sleeve 4 that has adjusted its position to prevent displacement.

[0055] In this embodiment, the threaded hole A103 in the middle of the docking hole A105 is used to connect the locking bolt 8. After the fixed rotating sleeve 4 is adjusted to the appropriate position, the locking bolt 8 is screwed into the threaded hole A103 to fix the adjusted position and prevent the fixed rotating sleeve 4 from shifting during the operation. The first scale 104 on the positioning plate 1 has a scale of 0-360 degrees, which is used to adjust the angle of rotation of the positioning plate 1 around the axis to accurately determine the direction of the osteotomy line. The fixed rotating sleeve 4 is inserted into the docking hole A105 of the positioning plate 1. The arrow B403 is used to indicate the rotation direction of the fixed rotating sleeve 4. The locking bolt 8 is screwed into the threaded hole C405, so that the fixed rotating sleeve 4 is tightly connected to the positioning plate 1 and its position is fixed.

[0056] For details, please refer to Figures 1-8 The threaded hole B301 is used to fix the connection of the bolt 2 to prevent the long shaft 302 from sliding out when sliding.

[0057] In this embodiment: the position of the threaded hole B301 is carefully designed according to the layout of the long shaft 302 and the position to be fixed, so as to ensure that after the fixing bolt 2 is fixed, the long shaft 302 can remain stable in the correct position. The size of the threaded hole B301 must match the thread specification of the fixing bolt 2 so that the bolt can be smoothly screwed in and tightened. The depth of the threaded hole B301 must be sufficient to ensure that after the fixing bolt 2 is fully screwed in, the thread can provide sufficient clamping force to prevent the long shaft 302 from sliding. The material of the threaded hole B301 should have sufficient strength and wear resistance to withstand the torque generated when the bolt is fixed and the wear during long-term use. The threaded hole B301 is used to fix the bolt 2. When the bolt is screwed into the threaded hole and tightened, it can effectively prevent the long shaft 302 from sliding relative to the fixed component. During the sliding or movement of the long shaft 302, the combination of the threaded hole B301 and the fixing bolt 2 can prevent the long shaft 302 from sliding out of the predetermined position due to external force, thereby ensuring the normal operation of the mechanical device.

[0058] For details, please refer to Figures 1-8 The short axis B404 moves axially relative to the docking hole A105 to adjust the position of the fixed rotating sleeve 4. The sleeve B505 slides axially to adjust the position and is fixed by connecting the locking bolt 8 through the threaded hole D503. The osteotomy groove A603 is used for osteotomy guidance, and the fixing hole B602 is used to fix the slide guide plate 6 after adjusting the final position.

[0059] In this embodiment, short shaft B404 is part of the fixed rotating sleeve 4 and is designed to move axially relative to the docking hole A105. Its primary function is to adjust the position of the fixed rotating sleeve 4. By axially moving short shaft B404, the position of the fixed rotating sleeve 4 can be fine-tuned, thereby precisely controlling the overall position and angle of the guide plate. Sleeve B505 is designed to slide axially to adjust its position. After sliding, locking bolt 8 can be screwed into threaded hole D503 to secure sleeve B505. In this way, the position of the sleeve B505 is locked, ensuring the stability of the guide plate. The osteotomy groove A603 is a specially designed groove on the guide plate for guiding the osteotomy tool during surgery. The osteotomy groove A603 provides a precise osteotomy guide to ensure that the surgeon can perform osteotomy operations according to the predetermined trajectory, thereby improving the accuracy and safety of the operation. The fixing hole B602 is located on the slide guide plate 6 and is used to fix it after adjusting the final position. When the slide guide plate 6 is adjusted to the final position, a bolt or other fixing element can be screwed into the fixing hole B602 to fix the slide guide plate 6 in an appropriate position to prevent displacement during the operation.

[0060] For details, please refer to Figures 1-8 The osteotomy groove B702 is used for osteotomy guidance, and the fixing hole C703 is used to fix the slide guide plate 7 after adjusting the final position, and can be replaced with other structures to achieve functional expansion. The slide groove 607 and the slide rail 701 are partially connected, and the relative sliding of the two is used to adjust the length of the slide groove guide plate 6 and the slide rail guide plate 7.

[0061] In this embodiment, the osteotomy groove B702 is a specially designed groove on the guide rail 7 for guiding the osteotomy tool during surgery. The osteotomy groove B702 provides a precise osteotomy guide to ensure that the surgeon can perform the osteotomy operation according to the predetermined trajectory, thereby improving the accuracy and safety of the surgery. The fixing hole C703 is located on the guide rail 7 for fixing after adjusting the final position. When the guide rail 7 is adjusted to the final position, a bolt or other fixing element can be screwed into the fixing hole C703 to fix the guide rail 7 in the appropriate position to prevent the guide rail 7 from being moved during surgery. In case of displacement, the design of the fixing hole C703 allows it to be replaced with other structures to achieve functional expansion. For example, it can be replaced with a fixing structure with a quick release mechanism to facilitate rapid adjustment and replacement of the guide plate components. The slide groove 607 is a groove structure provided on the slide groove guide plate 6, and the slide rail 701 is a raised structure on the slide rail guide plate 7. The two are designed to be partially connected and slide relative to each other. The relative sliding mechanism of the slide groove 607 and the slide rail 701 is used to adjust the length of the slide groove guide plate 6 and the slide rail guide plate 7 to adapt to the bone size and surgical needs of different patients.

[0062] For details, please refer to Figures 1-8The fixing hole B602 and the guide plate body A604 are used to adjust the rotation angle of the short axis C502. The locking bolt 8 adjusts the locking degree by rotating the cross nut, which is used to fix the adjusted position of the slide guide plate 6 and the slide rail guide plate 7.

[0063] In this embodiment, fixing hole B602 is located on the chute guide plate 6 and cooperates with the guide plate body A604. Fixing hole B602 is used to adjust the rotation angle of short shaft C502. By screwing a bolt into fixing hole B602, the position of short shaft C502 can be fixed, thereby adjusting the rotation angle of the chute guide plate 6. Guide plate body A604 is the main structural component of the chute guide plate 6 and works in conjunction with fixing hole B602. Guide plate body A604 provides a platform for supporting and fixing short shaft C502, ensuring the stability of the chute guide plate 6 after adjustment. Short shaft C502 is a part of the chute guide plate 6 designed to be rotatable and fixed. The rotation angle of short shaft C502 can be adjusted through fixing hole B602 and guide plate body A604, thereby precisely controlling the position and angle of the chute guide plate 6. The locking bolt 8 is adjusted by rotating the cross nut to adjust the locking degree. Locking bolt 8 is used to fix the chute guide plate 6 and the rail guide plate 7 after the adjusted position. By rotating the cross nut, the locking force can be increased or decreased to ensure that the guide remains stable and does not shift during surgery.

[0064] For details, please refer to Figures 1-8 The fitting plate 102 is designed to fit the selected bone position for reference positioning. The transverse groove 201 facilitates rapid adjustment and locking during surgery. The arrow A303 is used to indicate the relative rotation angle between the rotating sleeve and the short axis A304.

[0065] In this embodiment, the compliant plate 102 is designed to adhere to a selected bone position for reference positioning. Its surface can be smooth for close contact with the bone surface, or it can be coated with a sticky material to enhance adhesion to the skin. The compliant plate 102 is provided with a transverse groove 201, which is designed to cooperate with the fixed rotating sleeve 4 or other adjustment components to facilitate rapid adjustment and locking during surgery. Arrow A303 indicates the rotation direction of the rotating sleeve, helping the surgeon quickly understand and execute the correct adjustment steps. Short axis A304 is the rotation axis of the fixed rotating sleeve 4. It works in conjunction with arrow A303 to indicate the relative rotation angle between the rotating sleeve and the positioning plate 1.

[0066] For details, please refer to Figures 1-8 The sleeve A401 is used for the long axis 302 to pass through, ensuring that the slide rod 3 can slide along its long axis 302, and the short axis C502 is partially docked with the docking hole B608 on the slide guide plate 6. The surface of the short axis C502 is fixedly connected with an arrow C504, which is used to indicate the rotation angle of the short axis of the movable sleeve relative to the docking hole B608.

[0067] In this embodiment, sleeve A401 is designed to allow the long axis 302 to pass through, ensuring that the slide bar 3 can slide along its long axis 302. This allows the slide bar 3 to move freely within sleeve A401, thereby adjusting the guide plate length. The combination of sleeve A401 and slide bar 3 ensures the stability of the guide plate during surgery. The short axis C502 partially engages with the docking hole B608 on the chute guide plate 6, allowing the movable rotating sleeve 5 to connect with the chute guide plate 6 and achieve rotational adjustment. An arrow C504 is fixedly attached to the surface of the short axis C502, indicating the rotation angle of the movable sleeve's short axis relative to the docking hole B608. This allows the surgeon to quickly understand and adjust the rotation angle of the movable rotating sleeve 5 by observing the position of arrow C504, thereby achieving precise adjustment of the osteotomy position.

[0068] For details, please refer to Figures 1-8 The slide groove 607 and the slide rail 701 are partially connected, and the two slide relative to each other to adjust the length of the guide plate, and the slide rail guide plate 7 can be replaced with other structures to achieve functional expansion.

[0069] In this embodiment: the slide groove 607 is a groove structure arranged on the slide groove guide plate 6, which is designed to be connected to the slide rail 701 part to form a sliding fit. The length and shape design of the slide groove 607 can allow the slide rail 701 to slide relatively inside it along the length direction of the guide plate, thereby achieving the purpose of adjusting the length of the guide plate. The slide rail 701 is the part that cooperates with the slide groove 607, and is usually fixed on the slide rod 3 or other movable parts so that it can slide in the slide groove 607. Through the relative sliding of the slide rail 701 and the slide groove 607, the length of the guide plate can be adjusted to adapt to the anatomical structure or surgical needs of different patients.

[0070] For details, please refer to Figures 1-8 The locking bolt 8 is used to fix and lock multiple components to ensure the stability and accuracy of the guide plate during surgery.

[0071] In this embodiment, the locking bolt 8 is typically a cylindrical metal component with threads, designed to pass through a specific hole and, through the action of the threads, engage a nut or other threaded mating component. The bolt head may be designed with a hexagonal head, a hexagon socket head, or other tool interface that facilitates rotation using tools such as a wrench or screwdriver. The locking bolt 8 is used to secure multiple components together, such as the guide plate to the slide rail 701, the slide groove 607, or other connecting components, to form a stable integral structure. When tightened, the locking bolt 8 generates sufficient clamping force to prevent relative movement of the secured components during surgery, thereby maintaining the stability of the guide plate, which is crucial during surgery. By securing the guide plate and its associated components, the locking bolt 8 prevents displacement caused by external forces or surgical manipulation, ensuring the accuracy of the surgical procedure. The precise locking of the locking bolt 8 ensures that the guide plate remains fixed at the predetermined position and angle, which is particularly critical for surgical procedures requiring high precision, such as osteotomy and screw placement.

[0072] The working principle and use process of the present invention are as follows: attach the positioning plate 1 to the bone part of the patient that needs osteotomy, ensure that the fitting plate 102 fits tightly against the bone surface, and stabilize the positioning plate 1 by fixing the column 101. Fix the positioning plate 1 in an appropriate position through the threaded hole A103 and the fixing hole A106. Use the first scale 104 to adjust the rotation angle of the positioning plate 1 to ensure the correct direction of the osteotomy line. Connect the fixed rotating sleeve 4 with the docking hole A105 of the positioning plate 1 and fix it through the threaded hole C405. Observe the position of the arrow B403 to determine the rotation angle of the fixed rotating sleeve 4. Pass the sliding rod 3 through the sleeve hole 402 of the fixed rotating sleeve 4 and adjust its position so that the long axis 302 of the sliding rod 3 is consistent with the nail placement direction required for the operation. Use the fixing bolt 2 to fix the sliding rod 3 in an appropriate position. Use the transverse groove 201 to prevent the sliding rod 3 from axial sliding. Connect the movable rotating sleeve 5 with the short axis A304 of the sliding rod 3 and fix it through the threaded hole D503. Use the second scale 501 to adjust the rotation angle of the movable rotating sleeve 5 to further accurately determine the direction of screw placement. Then, dock the slide guide plate 6 with the docking hole B608 of the movable rotating sleeve 5 and secure it via the threaded hole E601 and the fixing hole B602. Adjust the position of the slide guide plate 6 so that the osteotomy groove A603 is located on the predetermined osteotomy line. Place the slide rail guide plate 7 in the slide groove 607 of the slide guide plate 6 and slide the slide rail guide plate 7 to the desired length via the slide rail 701. Use the locking bolt 8 via the threaded hole F605 and the fixing hole C703 to lock the slide rail guide plate 7 in the appropriate position to ensure that the guide plate does not move during the operation. Perform the osteotomy operation based on the positions of the osteotomy grooves A603 and B702, while ensuring the precise location of the screw placement.

[0073] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A personalized adjustable osteotomy screw placement guide, characterized by: include: A positioning plate (1), the positioning plate (1) comprising a fixed column (101), a conforming plate (102), a threaded hole A (103), a first scale (104), a docking hole A (105) and a fixing hole A (106), for positioning a specific position of a bone, wherein the first scale (104) has a 0-360° scale on the surface for adjusting an angle of rotation around an axis; A fixed rotating sleeve (4), the fixed rotating sleeve (4) consisting of a sleeve A (401), a sleeve hole (402), an arrow B (403), a short shaft B (404) and a threaded hole C (405), docked with the positioning plate (1), wherein the arrow B (403) is used to indicate the rotation angle of the short shaft B (404) relative to the docking hole A (105); A slide rod (3), the slide rod (3) consisting of a threaded hole B (301), a long axis (302), an arrow A (303) and a short axis A (304), wherein the long axis (302) is used to pass through the fixed rotating sleeve (4) and can slide axially along the long axis (302) to adjust the position; A fixing bolt (2), the fixing bolt (2) consisting of a transverse groove (201), a stud (202) and a bolt cap (203), is used for connecting the slide rod (3) after passing through the fixed rotating sleeve (4), and the fixing bolt (2) limits the slide rod (3) to prevent it from sliding out; A movable rotating sleeve (5), the movable rotating sleeve (5) is composed of a second scale (501), a short axis C (502), a threaded hole D (503), an arrow C (504) and a sleeve B (505), the sleeve B (505) partially butting against the short axis A (304), and the outer side of the upper side of the sleeve B (505) is provided with a 0-360° scale for adjusting the rotation angle of the arrow A (303); A slide guide plate (6), wherein the slide guide plate (6) is composed of a threaded hole E (601), a fixing hole B (602), an osteotomy groove A (603), a guide plate body A (604), a threaded hole F (605), a third scale (606), a slide plate (607) and a docking hole B (608), wherein the docking hole B (608), the osteotomy groove A (603) and the fixing hole B (602) are used to adjust the length and fix the position; A slide rail guide plate (7), the slide rail guide plate (7) consisting of a slide rail (701), an osteotomy groove B (702), a fixing hole C (703) and a guide plate body B (704), the slide rail guide plate (7) sliding relative to the slide groove guide plate (6) for adjusting the length of the guide plate; A locking bolt (8), wherein the locking bolt (8) is used to lock the position, and the degree of locking is adjusted by rotating the cross nut; The chute (607) and the slide rail (701) are partially connected, and the two slide relative to each other to adjust the length of the chute guide plate (6) and the slide rail guide plate (7).

2. The personalized adjustable osteotomy screw placement guide according to claim 1, characterized in that: The threaded hole A (103) in the middle of the docking hole A (105) is used to connect the locking bolt (8) to fix the fixed rotating sleeve (4) in an adjusted position to prevent displacement.

3. The personalized adjustable osteotomy screw placement guide according to claim 2, characterized in that: The threaded hole B (301) is used to fix the connection of the bolt (2) to prevent the long shaft (302) from sliding out when sliding.

4. The personalized adjustable osteotomy screw placement guide according to claim 3, characterized in that: The short axis B (404) moves axially along the short axis B (404) relative to the docking hole A (105) to adjust the position of the fixed rotating sleeve (4). The sleeve B (505) slides axially to adjust the position and is fixed by connecting the locking bolt (8) through the threaded hole D (503). The osteotomy groove A (603) is used for osteotomy guidance, and the fixing hole B (602) is used to fix the slide guide plate (6) after adjusting the final position.

5. The personalized adjustable osteotomy screw placement guide according to claim 4, characterized in that: The osteotomy groove B (702) is used to guide the osteotomy tool during surgery, and the fixing hole C (703) is used to fix the slide rail guide plate (7) after adjusting the final position.

6. The personalized adjustable osteotomy screw placement guide according to claim 5, characterized in that: The fixing hole B (602) and the guide plate body A (604) are used to adjust the rotation angle of the short axis C (502), and the locking bolt (8) is used to adjust the locking degree by rotating the cross nut to fix the adjusted position of the slide guide plate (6) and the slide rail guide plate (7).

7. The personalized adjustable osteotomy screw placement guide according to claim 6, characterized in that: The fitting plate (102) is designed to fit on a selected bone position for reference positioning, and the arrow A (303) is used to indicate the relative rotation angle between the movable rotating sleeve (5) and the short axis A (304).

8. The personalized adjustable osteotomy screw placement guide according to claim 7, characterized in that: The sleeve A (401) is used for the long axis (302) to pass through, ensuring that the slide rod (3) can slide along its long axis (302), and the short axis C (502) partially docks with the docking hole B (608) on the slide guide plate (6). An arrow C (504) is fixedly connected to the surface of the short axis C (502) to indicate the rotation angle of the short axis C (502) relative to the docking hole B (608).

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