Osteotomy guide plate
By setting a guide groove on the osteotomy guide plate to form an acute angle with the guide plate, combined with a detachable support and guide structure, the problem of stress concentration on the osteotomy surface is solved, and the stability of osteotomy and bone healing effect are improved.
Patent Information
- Application Number
- CN202422667536.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-01
AI Technical Summary
The guide groove of the existing osteotomy guide plate is perpendicular to the tibial axis, which causes stress concentration on the osteotomy surface and may lead to prosthesis or bone fracture.
The guide groove is designed with an acute angle A between its depth direction and the height direction of the guide plate, where 72°≤A<90°. The detachable connection between the support and the guide increases the contact area between the osteotomy surface and the bone, thus dispersing stress.
This avoids stress concentration at the osteotomy surface, reduces the risk of prosthesis or bone fracture, and promotes bone healing.
Smart Images
Figure CN223601503U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of implanting bone surgery, in particular to an osteotomy guide plate. BACKGROUND
[0002] At present, with the development of 3D printing technology and navigation, through tibial osteotomy surgery, the tibial metaphyseal malignant bone tumor can be precisely resected and segmentally reconstructed while preserving the proximal tibial articular surface. Before osteotomy, the doctor needs to plan the osteotomy site and use 3D printing technology to print a prosthesis for adapting to the osteotomized bone and an osteotomy guide plate for assisting osteotomy. During the operation, the osteotomy guide plate needs to be installed at the bone lesion to assist the doctor in accurately osteotomizing the bone to avoid a large difference between the actual osteotomy position and the preoperative planned osteotomy position. After completing the osteotomy, the osteotomy guide plate needs to be removed and the prosthesis needs to be implanted at the osteotomy site.
[0003] However, the slot depth direction of the existing osteotomy guide plate is mostly perpendicular to the axial direction of the tibia, which causes stress concentration on the osteotomy surface after completing the osteotomy and installing the prosthesis, which may cause the prosthesis or bone to break. CONTENT OF THE UTILITY MODEL
[0004] The main purpose of the present application is to provide an osteotomy guide plate to at least solve the problem of prosthesis or bone breakage or failure under the stress of the osteotomy surface in the prior art.
[0005] According to one aspect of the present application, an osteotomy guide plate is provided, characterized in that it comprises:
[0006] a guide plate, wherein a guide slot is arranged on the guide plate, and the slot depth direction of the guide slot and the height direction of the guide plate form an acute angle A;
[0007] a fixing part arranged on the guide plate for connecting the guide plate to the bone.
[0008] Further, the acute angle A between the depth direction of the guide slot and the height direction of the guide plate satisfies the relationship 72°≤A<90°.
[0009] Further, the guide plate comprises a support part and a guide part, the guide part is detachably connected to the support part, the fixing part is arranged on the support part for fixing the support part to the bone, and the guide slot is arranged on the guide part.
[0010] Further, at least two connecting holes are arranged on the support part at intervals along the extension direction of the guide plate.
[0011] The fixing part comprises at least two fixing members for sequentially penetrating through the connecting hole and the bone to fix the supporting part on the bone.
[0012] Further, a supporting protrusion is arranged on the supporting part, the supporting protrusion protrudes along the thickness direction of the guide plate, and the connecting hole is arranged in the supporting protrusion.
[0013] Further, the guiding part comprises at least two guiding segments, each of the guiding segments is detachably connected to the supporting part, and the guiding segments are sequentially arranged along the extension direction of the guide plate, and the guiding segments are provided with osteotomy grooves, and each of the osteotomy grooves is communicated to form the guiding groove.
[0014] Further, a first clamping part is arranged on the supporting part, a second clamping part is arranged on the guiding part, and the second clamping part cooperates with the first clamping part to connect the guiding part to the supporting part.
[0015] Further, the first clamping part comprises an arc-shaped clamping groove, the second clamping part comprises an arc-shaped clamping block matched with the arc-shaped clamping groove, and the arc-shaped clamping block and the arc-shaped clamping groove are connected in an interference fit manner.
[0016] Further, a control segment is arranged on the guiding part, the control segment is used to receive external force to separate or connect the guiding part to the supporting part.
[0017] Further, the guide plate comprises an arc-shaped plate, and the guiding groove extends along the arc direction of the arc-shaped plate.
[0018] Compared with the prior art, the depth direction of the guiding groove and the height direction of the guide plate have an acute angle A; that is, after the osteotomy guide plate of the present application is used to complete osteotomy on the bone, the osteotomy surface and the axis direction of the bone have an acute angle A, at this time, the osteotomy surface is an inclined surface, when the bone is subjected to external force, the force acting on the osteotomy surface can be decomposed and transmitted to each part of the inclined surface, thereby preventing stress concentration on the osteotomy surface, and to some extent, avoiding the fracture or failure of the bone or the prosthesis under the action of a large stress. At the same time, compared with the osteotomy surface perpendicular to the axis direction of the bone, the area of the osteotomy surface with a certain inclination to the axis direction of the bone is correspondingly increased, thereby increasing the contact area of the osteotomy surface and the remaining osteotomy surface, which is more conducive to bone growth to achieve biological healing. BRIEF DESCRIPTION OF DRAWINGS
[0019] The drawings described herein are used to provide further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and the descriptions thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:
[0020] Figure 1 Structure diagram of the osteotomy guide plate and the bone assembly disclosed by the present application;
[0021] Figure 2 Structure diagram of the osteotomy guide plate and the bone assembly disclosed by the present application; Figure 1 Enlarged diagram of the I area in the middle;
[0022] Figure 3 Structure diagram of the osteotomy guide plate and the bone assembly disclosed by the present application; Figure 1 Half sectional view of the osteotomy guide plate and the bone assembly disclosed by the present application;
[0023] Figure 4 Structure diagram of the osteotomy guide plate disclosed by the present application (remove the fixing part);
[0024] Figure 5 Structure diagram of the support part disclosed by the present application;
[0025] Figure 6 Structure diagram of the guide part disclosed by the present application;
[0026] Figure 7 Structure diagram of the support part and the guide segment connection disclosed by the present application.
[0027] Among them, the above-mentioned drawings include the following reference signs:
[0028] 10, guide plate; 11, support part; 12, guide part; 20, bone; 101, guide groove; 111, connecting hole; 112, support protrusion; 113, first clamping part; 121, guide segment; 122, second clamping part; 123, control segment; 1131, arc-shaped clamping groove; 1211, osteotomy groove; 1221, arc-shaped clamping block. DETAILED DESCRIPTION
[0029] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0030] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.
[0031] The relative arrangement of parts and steps, numerical expressions, and values set forth in the examples herein are not meant to limit the scope of the present application unless otherwise specifically stated. It is also to be understood that the use of relational terms such as "first," "second," "third," and the like do not limit the scope of the application unless otherwise specifically stated. Furthermore, although illustrative of the present application, the skilled artisan will recognize that the methods, devices, and systems discussed herein can vary. It is therefore contemplated to be within the scope of the present application that alterations and modifications of the illustrated examples can occur to others upon reading and understanding the detailed description. Furthermore, where reference is made to an endothermic process, such process is understood to include processes that are substantially endothermic. Likewise, where reference is made to an exothermic process, such process is understood to include processes that are substantially exothermic. In the drawings and specification, there have been disclosed typical embodiments of the application and, although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the application being set forth in the following claims.
[0032] Referring to Figures 1 to 7 As shown, according to the embodiments of the present application, an osteotomy guide is provided, which includes a guide plate 10 and a fixing part.
[0033] Wherein, a guide groove 101 is arranged on the guide plate 10, and the groove depth direction of the guide groove 101 and the height direction of the guide plate 10 have an acute angle A. The fixing part is arranged on the guide plate 10, so as to connect the guide plate 10 on the bone 20.
[0034] Specifically, in the existing osteotomy guide, the groove depth direction (such as the X direction in the attached Figure 3 figure) of the guide groove 101 and the height direction (such as the Z direction in the attached Figure 3 figure) of the guide plate 10 are perpendicular, and after osteotomy, the osteotomy surface is perpendicular to the axis direction (such as the Z direction in the attached Figure 3 figure) of the bone 20, which makes the osteotomy surface a flat surface, and when the bone 20 is subjected to external force, the osteotomy surface becomes the main force surface, which leads to the stress concentration on the osteotomy surface, and finally may cause the bone 20 or the prosthesis installed on the osteotomy surface to be subjected to a large stress and be broken or fail.
[0035] In the embodiment, the acute angle A is between the depth direction of the guide groove 101 and the height direction of the guide plate 10; that is, after the osteotomy guide plate of the embodiment is used to complete the osteotomy of the bone 20, the osteotomy surface and the axis direction of the bone 20 form the acute angle A, at this time, the osteotomy surface is an inclined surface, and when the bone 20 is subjected to an external force, the force acting on the osteotomy surface can be decomposed and transmitted to each part of the inclined surface, thereby preventing stress concentration on the osteotomy surface and avoiding the fracture or failure of the bone 20 or the prosthesis under a large stress to a certain extent. At the same time, compared with the osteotomy surface perpendicular to the axis direction of the bone 20, the area of the osteotomy surface with a certain inclination to the axis direction of the bone 20 is correspondingly increased, thereby increasing the contact area of the osteotomy surface and the remaining surface of the bone 20 after osteotomy, and more conducive to bone growth and biological healing.
[0036] Further, the acute angle A between the depth direction of the guide groove 101 and the height direction of the guide plate 10 satisfies the relationship 72°≤A<90°.
[0037] Specifically, when A is less than 72°, the inclination angle between the depth direction of the guide groove 101 and the height direction of the guide plate 10 is too large, thereby causing too much osteotomy amount during the osteotomy, and finally possibly damaging the integrity of the bone 20 and reducing the structural strength of the bone 20, thereby increasing the risk of fracture of the patient. When A is equal to 90°, the depth direction of the guide groove 101 is perpendicular to the height direction of the guide plate 10, thereby making the osteotomy surface perpendicular to the axis direction of the bone 20, which may cause stress concentration on the osteotomy surface when the bone 20 is subjected to an external force, and finally cause the fracture or failure of the bone 20 or the prosthesis under a large stress. In the embodiment, the value of A can be 72°, 74°, 76°, 78°, 80°, 82°, 84°, 86°, and 88°, and preferably, the value of A is 83°. In some embodiments, the depth direction of the guide groove 101 is parallel to the upper surface of the proximal end of the bone 20 after osteotomy, that is, the osteotomy surface is parallel to the upper surface of the height direction of the bone 20. One advantage of this design is that the gap between the osteotomy surface and the prosthesis is small, thereby improving the stability of the bone 20 to a certain extent; in addition, the small gap between the osteotomy surface and the bone 20 can also achieve bone healing faster during the subsequent recovery process of the patient.
[0038] Further, the guide plate 10 includes a support part 11 and a guide part 12, the guide part 12 is detachably connected to the support part 11, a fixing part is arranged on the support part 11 to fix the support part 11 to the bone 20, and the guide groove 101 is arranged in the guide part 12.
[0039] Specifically, according to the preoperative plan, different osteotomy guides are used for different patients. These guides are manufactured using 3D printing to adapt to different patients. During osteotomy, the surgeon first fixes the guide portion 12 to the bone 20 using a fixation unit, then connects the guide portion 12 to the support portion 11, and allows the osteotomy blade to cut the bone through the guide groove 101 on the guide portion 12. Furthermore, in this embodiment, the guide portion 12 is detachably connected to the support portion 11, meaning that the surgeon can remove the guide portion 12 at any time during osteotomy to observe the osteotomy surface and make adaptive adjustments to the osteotomy depth and position based on the condition of the bone 20.
[0040] Furthermore, along the extending direction of the guide plate 10, the support portion 11 has at least two connecting holes 111 spaced apart. The fixing portion includes at least two fixing members, which are used to pass through the connecting holes 111 and the skeleton 20 in sequence, so that the support portion 11 is fixed to the skeleton 20.
[0041] As attached Figure 4 As shown, in a specific embodiment, three connecting holes 111 are provided. Two connecting holes 111 are located at both ends of the support portion 11 along its length, and the third connecting hole 111 is located in the middle of the support portion 11. Three fasteners are included, each passing through one of the three connecting holes 111, to fix the support portion 11 to the bone 20, thereby preventing the support portion 11 from shaking or shifting under external force. In this embodiment, the connecting hole 111 is a Kirschner wire hole, and the fastener is a Kirschner wire. Optionally, the connecting hole 111 can also be a screw hole, and the fastener can also be a medical screw.
[0042] In this embodiment, since the direction of the external force applied to the Kirschner wire may deviate when fixing the Kirschner wire, it may cause the Kirschner wire to deviate when it is inserted into the bone 20, ultimately affecting the bone 20. Therefore, in this embodiment, a support protrusion 112 is provided on the support part 11. The support protrusion 112 protrudes along the thickness direction of the guide plate 10, and a connection hole 111 is provided inside the support protrusion 112.
[0043] Specifically, the connecting hole 111 is provided on the support protrusion 112. When it is necessary to fix the support part 11 to the bone 20, the Kirschner wire is first passed through the connecting hole 111 on the support protrusion 112. Then, an external force is applied to the Kirschner wire to drive it into the bone 20. Since the Kirschner wire has a support protrusion 112 on its outer periphery, even if the direction of the external force applied to the Kirschner wire is slightly deviated, when the Kirschner wire is driven into the bone 20, the Kirschner wire can still penetrate into the bone 20 along the depth direction of the connecting hole 111 under the action of the support protrusion 112.
[0044] In some embodiments, the guide plate 10 includes an arcuate plate, and the guide groove 101 extends along the arcuate direction of the arcuate plate.
[0045] It can be understood that the guide groove 101 extends along the arc direction of the arc plate, and when the arc plate has a long length, the guide groove 101 also has a long extension length. The doctor can select the osteotomy direction or observe the osteotomy condition through the long guide groove 101 according to the actual situation of the osteotomy. As shown in the accompanying drawings, in a specific embodiment, when the arc plate is installed on the bone 20, the guide groove 101 at least extends to the front surface (the front surface in the accompanying drawings), the left side surface (the left side surface in the accompanying drawings), and the right side surface (the right side surface in the accompanying drawings) of the bone 20, that is, through the guide groove 101, the doctor can select to perform osteotomy from the front surface, the right side surface, and the left side surface of the bone 20 according to the actual situation. Figure 2 Figure 2 Figure 2 Figure 2
[0046] Further, the guide part 12 includes at least two guide segments 121, each of the guide segments 121 is detachably connected to the support part 11, and the guide segments 121 are sequentially arranged along the extension direction of the guide plate 10, and the guide segments 121 are provided with osteotomy grooves 1211, and the osteotomy grooves 1211 are communicated and form the guide groove 101.
[0047] In the embodiment, since the guide part 12 includes a plurality of guide segments 121, and each of the guide segments 121 is detachably connected to the support part 11, the doctor can detach each of the guide segments 121 at any time during the osteotomy process, so as to observe the osteotomy condition of the bone 20 under the guide segment 121. In addition, when each of the guide segments 121 is installed on the support part 11, the guide segments 121 are sequentially arranged along the extension direction of the guide plate 10, the osteotomy grooves 1211 on the adjacent two guide segments 121 are communicated with each other, so that the osteotomy grooves 1211 on each of the guide segments 121 form the guide groove 101. It is worth mentioning that too many guide segments 121 will make the manufacturing cost of the guide plate 10 too high, and too many guide segments 121 will reduce the connection strength between each of the guide segments 121 and the support part 11. In some preferable embodiments, the guide segments 121 include two or three.
[0048] Further, the support part 11 is provided with a first clamping part 113, the guide part 12 is provided with a second clamping part 122, and the second clamping part 122 cooperates with the first clamping part 113 to connect the guide part 12 to the support part 11.
[0049] Specifically, since the support part 11 is provided with the first clamping part 113, and the guide part 12 is provided with the second clamping part 122, when it is needed to connect the guide part 12 to the support part 11, only the first clamping part 113 and the second clamping part 122 need to be cooperated, and when it is needed to separate the guide part 12 from the support part 11, only the first clamping part 113 and the second clamping part 122 need to be separated.
[0050] Furthermore, the first snap-fit portion 113 includes an arc-shaped snap-fit groove 1131, and the second snap-fit portion 122 includes an arc-shaped snap-fit block 1221 adapted to the arc-shaped snap-fit groove 1131. The arc-shaped snap-fit block 1221 and the arc-shaped snap-fit groove 1131 are connected by an interference fit.
[0051] As attached Figure 4 To be continued Figure 6 As shown, the support portion 11 is provided with an arc-shaped groove 1131, and the guide portion 12 is provided with an arc-shaped locking block 1221. When an external force is applied to the guide portion 12, the arc-shaped locking block 1221 can be locked in the arc-shaped groove 1131, thereby fixing the guide portion 12 to the support portion 11. When it is necessary to separate the guide portion 12 from the support portion 11, an external force in the opposite direction is applied to the guide portion 12, so that the arc-shaped locking block 1221 overcomes the supporting force applied by the arc-shaped groove 1131, thereby allowing the arc-shaped locking block 1221 to pass through the arc-shaped groove 1131. It is worth mentioning that, since the arc-shaped locking block 1221 and the arc-shaped locking groove 1131 are connected by an interference fit, when the force applied to the guide portion 12 is small and insufficient to overcome the external force exerted by the arc-shaped locking groove 1131 on the arc-shaped locking block 1221, the guide portion 12 will not detach from the support portion 11. This is to avoid the guide portion 12 being subjected to a small external force during osteotomy, causing the guide portion 12 to separate from the support portion 11, thereby affecting the efficiency of the osteotomy surgery. In this embodiment, each guide segment 121 is provided with an arc-shaped locking block 1221, and the support portion 11 is provided with multiple arc-shaped locking grooves 1131. Each guide segment 121 is connected to the support portion 11 through the arc-shaped locking block 1221 and the arc-shaped locking groove 1131.
[0052] Furthermore, the guide section 12 is provided with a control section 123, which is used to receive external force so as to separate the guide section 12 from the support section 11 or connect the guide section 12 to the support section 11.
[0053] Specifically, when the guide portion 12 needs to be connected to the support portion 11, an external force is applied to the control section 123 to cause the arc-shaped locking block 1221 on the guide portion 12 to engage in the arc-shaped locking groove 1131 of the support portion 11. When the guide portion 12 needs to be separated from the support portion 11, an external force is applied to the control section 123 to cause the arc-shaped locking block 1221 to disengage from the arc-shaped locking groove 1131. In this embodiment, the control section 123 is a control lever, which is disposed on the arc-shaped locking block 1221 and extends a predetermined length along the thickness direction of the guide plate 10 to facilitate the doctor's operation of the control lever.
[0054] To sum up, in the osteotomy guide plate, the guide groove 101 on the guide plate 10 is arranged at an acute angle A with the height direction, and the acute angle A satisfies the relationship: 72°≤A<90°, so that the osteotomy surface and the bone 20 axis direction have a certain angle of inclination after osteotomy, so as to prevent stress concentration on the osteotomy surface after being subjected to external force, and finally cause the bone 20 or the prosthesis installed on the osteotomy surface to be broken or fail; at the same time, the contact area between the osteotomy surface and the remaining surface of the bone 20 is increased, which is more conducive to bone growth and biological healing. On the other hand, the guide plate 10 of the present application comprises a support part 11 and a guide part 12, the guide part 12 is detachably connected to the support part 11, and the guide part 12 comprises a plurality of guide segments 121, each guide segment 121 is detachably connected to the support part 11, and the osteotomy groove 1211 on each guide segment 121 forms the guide groove 101. The structure of the present application is conducive to the doctor to detach the guide segment 121 at any time during osteotomy, and observe the condition of the bone 20. In addition, the arc-shaped clamping block 1221 is arranged on each guide segment 121, and a plurality of arc-shaped clamping grooves 1131 are arranged on the guide part 12. When the arc-shaped clamping block 1221 is subjected to external force and enters the arc-shaped clamping groove 1131, the arc-shaped clamping block 1221 and the arc-shaped clamping groove 1131 are connected in interference fit, so that the guide segment 121 is connected to the support part 11, thereby avoiding the guide segment 121 from falling off the support part 11 under the action of small external force.
[0055] For the purposes of the description hereinafter, spatially relative terms, such as "above", "below", "up", "down", "top", "bottom", "horizontal", "vertical", "upper", "lower", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", "third", etc. can be used herein to describe various elements, but the elements should not be limited by these terms. The terms are only used to identify and distinguish a subject element from another subject element, and are not otherwise limiting.
[0056] In addition, it should be noted that the use of the terms "first", "second", and the like, to describe various elements, is only intended to facilitate the description of the corresponding elements, and the above terms do not have special meanings unless otherwise stated. Therefore, it cannot be understood as a limitation on the scope of protection of the present application.
[0057] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.
Claims
1. An osteotomy guide, characterized in that, The application relates to a guide plate (10) provided with a guide groove (101), wherein the acute angle A between the depth direction of the guide groove (101) and the height direction of the guide plate (10) is greater than 72 degrees and less than 90 degrees. The guide plate (10) is provided with a fixing part for connecting the guide plate (10) to a bone (20). The acute angle A between the depth direction of the guide groove (101) and the height direction of the guide plate (10) satisfies the relationship 72 DEG <= A < 90 DEG.
2. The osteotomy guide of claim 1, wherein, The guide plate (10) comprises a support part (11) and a guide part (12), the guide part (12) is detachably connected to the support part (11), the fixing part is arranged on the support part (11) and used for fixing the support part (11) to the bone (20), and the guide groove (101) is arranged on the guide part (12).
3. The osteotomy guide of claim 1, wherein, At least two connecting holes (111) are arranged on the support part (11) and spaced apart along the extension direction of the guide plate (10).
4. The osteotomy guide of claim 3, wherein, The fixing part comprises at least two fixing members which are used for sequentially penetrating through the connecting holes (111) and the bone (20) so that the support part (11) is fixed to the bone (20). The support part (11) is provided with a support protrusion (112) which protrudes along the thickness direction of the guide plate (10), and the connecting hole (111) is arranged in the support protrusion (112).
5. The osteotomy guide of claim 4, wherein, The guide part (12) comprises at least two guide segments (121), the guide segments (121) are detachably connected to the support part (11), the guide segments (121) are sequentially arranged along the extension direction of the guide plate (10), and the guide segments (121) are provided with osteotomy grooves (1211) which are communicated and form the guide groove (101).
6. The osteotomy guide of claim 3, wherein, The support part (11) is provided with a first clamping part (113), the guide part (12) is provided with a second clamping part (122), the second clamping part (122) is matched with the first clamping part (113) so that the guide part (12) is connected to the support part (11).
7. The osteotomy guide of claim 3, wherein, The first clamping part (113) comprises an arc-shaped clamping groove (1131), the second clamping part (122) comprises an arc-shaped clamping block (1221) matched with the arc-shaped clamping groove (1131), and the arc-shaped clamping block (1221) and the arc-shaped clamping groove (1131) are connected in an interference fit mode.
8. The osteotomy guide of claim 7, wherein, The guide part (12) is provided with a control segment (123) used for receiving external force so that the guide part (12) is separated from the support part (11) or the guide part (12) is connected to the support part (11).
9. The osteotomy guide of claim 3, wherein, The guide plate (10) comprises an arc-shaped plate, and the guide groove (101) extends along the arc direction of the arc-shaped plate.
10. The osteotomy guide of any one of claims 1 to 9, wherein,