Personalized adjustable osteotomy screw placement guide plate

Abstract

The invention provides a personalized adjustable osteotomy screw placement guide plate, and belongs to the technical field of medical apparatuses and instruments. The positioning plate is composed of a fixing stand column, an attaching plate, a threaded hole A, a first graduated scale, a butt joint hole A and a fixing hole A. The stability and accuracy of the guide plate in the operation process are guaranteed through reference positioning of the attaching plate, angle adjustment of the first graduated scale and combined use of the multiple fixing holes and locking bolts. Due to the design, a surgeon can accurately control the positions of osteotomy and screw placement in an operation, personal errors are reduced, and the success rate of the operation and the rehabilitation effect of a patient are remarkably improved; a doctor can accurately adjust the osteotomy position and angle according to the specific anatomical structure of a patient. The surgical accuracy is improved, the surgical risk is reduced, postoperative recovery of a patient is facilitated, and complications caused by surgical errors are reduced.

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. The current osteotomy and nail placement guide is used as an auxiliary positioning tool to help surgeons perform stable and accurate osteotomy and nail placement during surgery.

[0003] Limited angle adjustment: The structure of traditional guides is relatively fixed, and they can usually only be positioned and adjusted within a limited range of directions and angles. This limitation makes it difficult for doctors to meet the needs of multi-angle and different axis osteotomies in complex bone surgeries, which can easily lead to deviations during surgery and increase the complexity and difficulty of the surgery;

[0004] Single-direction adjustment method: Existing guides can only be adjusted along one axis or direction, lacking flexibility. Once fine-tuning along multiple directions is required, the guide needs to be replaced or manually reset, which is not only time-consuming but also easily causes the guide to shift, thus affecting the final surgical effect.

[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 slippage during operation. Especially in long and complex operations, this situation will further increase the operation error and affect the accuracy of the operation;

[0006] Unable to meet the needs of osteotomy and screw placement at the same time: Currently, most guides can only complete the single function of osteotomy positioning or screw placement guidance, and cannot meet the needs of both operations during surgery. Therefore, doctors need to switch guides additionally, which increases the surgical steps and patient risks. 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 plate, comprising:

[0010] A positioning plate, the positioning plate is composed 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 for positioning a specific position of a bone, the first scale having a surface-° scale 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] A slide rod, 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 is composed of a transverse groove, a stud and a bolt cap, and is used for connecting the slide bar after passing through the fixed rotating sleeve. The fixing bolt limits the slide bar to prevent it from sliding out;

[0014] A movable rotating sleeve, which is composed of a second scale, a short axis C, a threaded hole D, an arrow C and a sleeve B. The sleeve B is partially butted against the short axis A. There is a -° scale on the upper outer side of the sleeve B for adjusting the rotation angle of the arrow A;

[0015] A slide guide plate, 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] A slide rail guide plate, 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, and the slide rail guide plate slides relative to the slide groove guide plate to adjust the length of the guide plate;

[0017] A 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 for the connection of the fixing bolt to prevent the long shaft from slipping 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 the final position is adjusted.

[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 part are 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 slide groove guide plate and the slide rail guide plate that have been adjusted in position.

[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 part is docked with the docking hole B on the slide guide plate, and the surface of the short axis C is fixedly connected with an arrow C for indicating 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 for fixing and locking 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 accurately control the position of osteotomy and screw placement during surgery, reduce human errors, and significantly improve the success rate of surgery and the patient's recovery effect. By using a guide plate with multiple scales and adjustment components, doctors can accurately adjust the osteotomy position and angle according to the patient's specific anatomical structure. This improves the accuracy of the surgery, reduces surgical risks, helps patients recover after surgery, and reduces complications caused by surgical errors.

[0029] 2. Doctors can quickly adjust the guide plate according to the actual situation of the patient, reducing the time for surgical preparation and intraoperative adjustment, 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, 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, and can provide 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 the displacement of the guide during surgery, reduces surgical risks, and ensures patient safety. In addition, precise osteotomy and screw placement also help reduce postoperative complications and improve the quality of life of patients. The transverse groove of the fixing bolt facilitates quick adjustment and locking, and the cross nut design of the locking bolt makes adjustment more convenient. These designs not only simplify the surgical operation process, but also shorten the surgical preparation time and actual operation time, reduce the workload of doctors, and improve the overall efficiency of the operation. In addition, the modular design of the guide allows each component to be replaced and maintained independently, extending the service life of the guide 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 It is an exploded view of the positioning plate in the present invention;

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

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

[0036] Figure 5 It 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 It is an exploded view of the guide plate of the chute in the present invention;

[0039] Figure 8 It 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Example 1

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

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

[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, and is used to locate a specific position of the bone. The first scale 104 has a surface scale of 0-360° for adjusting the rotation angle around the axis;

[0046] The fixed rotating sleeve 4 is composed 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] The slide bar 3 is composed 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 for connecting the slide bar 3 after passing through the fixed rotating sleeve 4. The fixing bolt 2 limits the slide bar 3 to prevent it from sliding out;

[0049] The movable rotating sleeve 5 is composed of a second scale 501, a short axis C502, a threaded hole D503, an arrow C504 and a sleeve B505. The sleeve B505 is partially butted against the short axis A304. There is a 0-360° scale on the upper outer side of the sleeve B505 for adjusting the rotation angle of the arrow A303.

[0050] The slide guide plate 6 is composed 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 slide 607 and a docking hole B608, wherein 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 length of the guide plate;

[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, a fixed column 101 is fixed to the surgical site to ensure the stability of the guide plate. A conforming plate 102 fits the surface of the bone to increase the friction between the guide plate and the bone to prevent movement. A threaded hole A103 is used to fix the column 101 and the conforming plate 102. A 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. A docking hole A105 is docked with a fixed rotating sleeve 4 to achieve a rotation function. A fixed hole A106 is used to fix the positioning plate 1 on the bone. A sleeve A401 provides a stable rotation center. A sleeve hole 402 passes through the slide bar 3 to achieve sliding and rotation functions. Arrow B4 03: indicates the rotation angle, short axis B404: connects the sleeve A401 and other components, threaded hole C405: is used to fix the rotating sleeve 4, threaded hole B301: is 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: is 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 with other components, slide 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 on the bone through the fixing hole A106. Adjust the position of the slide bar 3 so that the arrow A303 points to the desired 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 Figure 1-Figure 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 been adjusted 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. When the fixed rotating sleeve 4 is adjusted to the appropriate position, the locking bolt 8 is screwed in through 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, 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 in through 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 Figure 1-Figure 8 The threaded hole B301 is used to fix the connection of the bolt 2 to prevent the long shaft 302 from slipping out when sliding.

[0057] In this embodiment: the position of the threaded hole B301 is carefully designed according to the layout of the long axis 302 and the position to be fixed, so as to ensure that after the fixing bolt 2 is fixed, the long axis 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 axis 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 in 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 axis 302 from sliding relative to the fixed component. During the sliding or movement of the long axis 302, the combination of the threaded hole B301 and the fixing bolt 2 can prevent the long axis 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 Figure 1-Figure 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: the short shaft B404 is a part of the fixed rotating sleeve 4, and is designed to be movable in the axial direction relative to the docking hole A105. The main function of the short shaft B404 is to adjust the position of the fixed rotating sleeve 4. By moving the short shaft B404 in the axial direction, the position of the fixed rotating sleeve 4 can be fine-tuned, thereby accurately controlling the overall position and angle of the guide plate. The sleeve B505 is designed to be able to slide in the axial direction to adjust its position. After the sleeve B505 slides, the locking bolt 8 can be screwed into the threaded hole D503 to fix it. 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, which is used to guide the osteotomy tool during surgery. The osteotomy groove A603 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 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 Figure 1-Figure 8 The osteotomy groove B702 is used for osteotomy guidance, and the fixing hole C703 is used for fixing 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 slide rail guide plate 7, which is used to guide 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 slide rail guide plate 7 and is used to fix it after adjusting the final position. When the slide rail guide plate 7 is adjusted to the final position, a bolt or other fixing element can be screwed into the fixing hole C703 to fix the slide rail guide plate 7 in an appropriate position to prevent the slide rail guide plate 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 Figure 1-Figure 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, and is used to fix the slide groove guide plate 6 and the slide rail guide plate 7 that have been adjusted in position.

[0063] In this embodiment: the fixing hole B602 is located on the slide guide plate 6, and cooperates with the guide plate body A604. The fixing hole B602 is used to adjust the rotation angle of the short axis C502. By screwing a bolt into the fixing hole B602, the position of the short axis C502 can be fixed, thereby adjusting the rotation angle of the slide guide plate 6. The guide plate body A604 is the main structural part of the slide guide plate 6, and works in conjunction with the fixing hole B602. The guide plate body A604 provides a platform for supporting and fixing the short axis C502, ensuring that the slide guide plate 6 is stable in position after adjustment. The short axis C502 is a part of the slide guide plate 6, which is designed to be rotatable and fixed. The rotation angle of the short axis C502 can be adjusted through the fixing hole B602 and the guide plate body A604, thereby accurately controlling the position and angle of the slide guide plate 6. The locking bolt 8 adjusts the locking degree by rotating the cross nut. The locking bolt 8 is used to fix the slide guide plate 6 and the slide rail guide plate 7 whose positions have been adjusted. 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 Figure 1-Figure 8 The fitting plate 102 is designed to fit the selected bone position for reference positioning. The transverse groove 201 is convenient for 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 fitting plate 102 is designed to fit the selected bone position for reference positioning. Its surface can be smooth so as to fit closely with the bone surface, or with sticky material to increase the adhesion with the skin. The fitting plate 102 is provided with a transverse groove 201, which is used to cooperate with the fixed rotating sleeve 4 or other adjustment components to facilitate rapid adjustment and locking during surgery. The arrow A303 is used to indicate the rotation direction of the rotating sleeve to help the surgeon quickly understand and perform the correct adjustment steps. The short axis A304 is the rotation axis of the fixed rotating sleeve 4, which is used in conjunction with the arrow A303 to indicate the relative rotation angle between the rotating sleeve and the positioning plate 1.

[0066] For details, please refer to Figure 1-Figure 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: the 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. In this way, the slide bar 3 can move freely in the sleeve A401, thereby adjusting the length of the guide plate. The cooperation between the sleeve A401 and the slide bar 3 ensures the stability of the guide plate during the operation. The short axis C502 partially docks with the docking hole B608 on the slide guide plate 6, so that the movable rotating sleeve 5 can be connected to the slide guide plate 6 and achieve rotation adjustment. The surface of the short axis C502 is fixedly connected with an arrow C504, and the arrow C504 is used to indicate the rotation angle of the short axis of the movable sleeve relative to the docking hole B608. In this way, the surgeon can quickly understand and adjust the rotation angle of the movable rotating sleeve 5 by observing the position of the arrow C504, thereby achieving precise adjustment of the osteotomy position.

[0068] For details, please refer to Figure 1-Figure 8 The slide groove 607 is partially connected to the slide rail 701, and the relative sliding of the two is used 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 Figure 1-Figure 8 The locking bolt 8 is used for fixing and locking multiple components to ensure the stability and accuracy of the guide plate during surgery.

[0071] In this embodiment: the locking bolt 8 is generally a cylindrical metal component with threads, which is designed to pass through a specific hole and be used in conjunction with a nut or other threaded fittings under the action of the threads. The bolt head may be designed with a hexagonal head, a hexagon socket head or other tool interfaces that are easy to rotate, so that it can be rotated using tools such as a wrench or a screwdriver. The locking bolt 8 is used to fix multiple components together, such as fastening the guide plate to the slide rail 701, the slide groove 607 or other connecting components to form a stable overall structure. When the locking bolt 8 is tightened, it can generate sufficient clamping force to ensure that the fixed components will not move relative to each other during the operation, thereby maintaining the stability of the guide plate. During the operation, the stability of the guide plate is very important. The locking bolt 8 prevents the displacement of the guide plate caused by external force or surgical operation by fixing the guide plate and its related components, ensuring the accuracy of the surgical operation. The precise locking of the locking bolt 8 can ensure that the guide plate remains unchanged at a predetermined position and angle, which is particularly critical for surgical steps that require high-precision operations such as osteotomy and nail 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 to the bone surface, stabilize the positioning plate 1 by fixing the column 101, fix the positioning plate 1 in an appropriate position by means of the threaded hole A103 and the fixing hole A106, adjust the rotation angle of the positioning plate 1 by means of the first scale 104, ensure the correct direction of the osteotomy line, dock the fixed rotating sleeve 4 with the docking hole A105 of the positioning plate 1, and fix it by means of 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, fix the sliding rod 3 in an appropriate position by means of the fixing bolt 2, prevent the sliding rod 3 from sliding axially by means of the transverse groove 201, dock the movable rotating sleeve 5 with the short axis A304 of the sliding rod 3, and fix it by means of the threaded hole D503. The second scale 501 is used to adjust the rotation angle of the movable rotating sleeve 5 to further accurately determine the direction of the screw placement. The slide guide plate 6 is docked with the docking hole B608 of the movable rotating sleeve 5 and fixed through the threaded hole E601 and the fixing hole B602. The position of the slide guide plate 6 is adjusted so that the osteotomy groove A603 is located on the predetermined osteotomy line. The slide rail guide plate 7 is placed in the slide groove 607 of the slide guide plate 6 and the slide rail guide plate 7 is slid to the required length position through the slide rail 701. The locking bolt 8 is used to lock the slide rail guide plate 7 in the appropriate position through the threaded hole F605 and the fixing hole C703 to ensure that the guide plate does not move during the operation. The osteotomy operation is performed according to the position of the osteotomy groove A603 and the osteotomy groove B702, while ensuring the accurate position of the screw placement.

[0073] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is 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 can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope 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 fixing column (101), a fitting plate (102), a threaded hole A (103), a first scale (104), a docking hole A (105) and a fixing hole A (106), and used for positioning a specific position of a bone, wherein the first scale (104) has a surface scale of 0-360° for adjusting a rotation angle around an axis; a fixed rotating sleeve (4), the fixed rotating sleeve (4) comprising a sleeve A (401), a sleeve hole (402), an arrow B (403), a short axis B (404) and a threaded hole C (405), docking with the positioning plate (1), wherein the arrow B (403) is used to indicate the rotation angle of the short axis B (404) relative to the docking hole A (105); A slide bar (3), the slide bar (3) comprising a threaded hole B (301), a long axis (302), an arrow A (303) and a short axis A (304), the long axis (302) being used to pass through the fixed rotating sleeve (4) and being able to slide axially along the long axis (302) to adjust the position; A fixing bolt (2), the fixing bolt (2) comprising a transverse groove (201), a stud (202) and a bolt cap (203), and used for connecting the slide bar (3) after passing through the fixed rotating sleeve (4), and the fixing bolt (2) restricts the slide bar (3) to prevent it from sliding out; A movable rotating sleeve (5), the movable rotating sleeve (5) comprising 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 upper outer side of the sleeve B (505) having 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 (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) comprising 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 locking degree is adjusted by rotating the cross nut.

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 a 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 slipping out when sliding.

4. The personalized adjustable osteotomy screw placement guide plate according to claim 3, characterized in that: The short axis B (404) moves axially 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 groove guide plate (6) after adjusting the final position.

5. The personalized adjustable osteotomy screw placement guide plate according to claim 4, characterized in that: The osteotomy groove B (702) is used for osteotomy guidance, and the fixing hole C (703) is used for fixing the slide rail 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 two slide relative to each other to adjust the length of the slide groove guide plate (6) and the slide rail guide plate (7).

6. The personalized adjustable osteotomy screw placement guide plate 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 slide groove guide plate (6) and the slide rail guide plate (7) in the adjusted position.

7. The personalized adjustable osteotomy screw placement guide plate according to claim 6, characterized in that: The fitting plate (102) is designed to fit on a selected bone position for reference positioning. The transverse groove (201) facilitates rapid adjustment and locking during surgery. The arrow A (303) is used to indicate the relative rotation angle between the rotating sleeve and the short axis A (304).

8. The personalized adjustable osteotomy screw placement guide plate 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); the short axis C (502) partially docks with the docking hole B (608) on the slide guide plate (6); and an arrow C (504) is fixedly connected to the surface of the short axis C (502) for indicating the rotation angle of the short axis of the movable sleeve relative to the docking hole B (608).

9. The personalized adjustable osteotomy screw placement guide plate according to claim 8, characterized in that: 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.

10. The personalized adjustable osteotomy screw placement guide plate according to claim 9, characterized in that: The locking bolt (8) is used to fix and lock multiple components, thereby ensuring the stability and accuracy of the guide plate during surgery.

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