Osteotomy guide plate and osteotomy equipment

Abstract

The utility model relates to an osteotomy guide plate and osteotomy equipment. The osteotomy guide plate comprises a guide part, a fixing part and at least two positioning columns. The guiding part and the fixing part both comprise attaching faces used for being attached to the bone. The side, provided with the attaching face, of the osteotomy guide plate is an attaching side. The guiding part is connected to one end of the fixing part. And the guide part is provided with at least one guide groove. And each guide groove extends towards different directions of the fixed part from the side edge, far away from the fixed part, of the guide part. And the plurality of different directions intersect and are all located in the plane where the binding surface is located. The guide grooves penetrate through the guide part in the direction facing the binding face. The at least two positioning columns are located on one side of the binding face of the fixing part and at least used for fixing the osteotomy guide plate to the bone. And the positioning columns are correspondingly arranged on at least one of the tail ends, facing the fixing part, of all the guide grooves.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an osteotomy guide plate and an osteotomy device. Background Art

[0002] In related technologies, as the aging population intensifies, degenerative osteoarthritis, rheumatoid arthritis, and other diseases can lead to knee cartilage destruction or abnormal wear of the knee joint, resulting in ligament imbalance and limited flexion and extension of the lower limbs. To restore lower limb function, joint surgery is necessary. As a result, the number of joint surgeries performed in hospitals is increasing annually.

[0003] Joint surgery requires osteotomy. For example, in tibial osteotomy, multiple guide plates are used to perform both horizontal and vertical tibial osteotomies. However, during these procedures, multiple cuts can occur. Therefore, reducing or avoiding these cuts at a low cost remains a pressing issue. Utility Model Content

[0004] According to a first aspect of an embodiment of the present application, there is provided an osteotomy guide plate, comprising: a guide portion, a fixing portion, and at least two positioning posts; the guide portion and the fixing portion both comprise a fitting surface for fitting with a bone; a side of the osteotomy guide plate provided with the fitting surface is a fitting side;

[0005] The guide portion is connected to one end of the fixing portion; the guide portion is provided with at least one guide groove; each guide groove starts from a side of the guide portion away from the fixing portion and extends in different directions toward the fixing portion; a plurality of the different directions intersect and are all located in the plane where the fitting surface is located; the guide grooves all penetrate the guide portion in a direction toward the fitting surface;

[0006] The at least two positioning posts are both located on one side of the fitting surface of the fixing portion and are at least used to fix the osteotomy guide plate to the bone; at least one of the ends of all the guide grooves facing the fixing portion is correspondingly provided with the positioning post.

[0007] As can be seen from the above embodiment, by providing a positioning post at at least one location corresponding to the distal end of each guide slot toward the fixed portion, the swing range of the medical tool can be effectively limited. This effectively confines the medical tool to the range of the guide slot corresponding to the distal end provided with the positioning post, thereby reducing or even preventing the occurrence of multiple cuts. Furthermore, the positioning post itself secures the osteotomy guide to the bone. Therefore, by locating the positioning post in a specific position, it simultaneously secures the osteotomy guide and reduces or even prevents multiple cuts, thereby reducing or even preventing the occurrence of multiple cuts at a relatively low cost.

[0008] According to a second aspect of an embodiment of the present application, an osteotomy device is provided, comprising any one of the above-mentioned osteotomy guide plates.

[0009] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0011] Figure 1 This is a schematic structural diagram of an osteotomy guide according to an embodiment of the present application.

[0012] Figure 2 This is a structural schematic diagram of an osteotomy guide plate shown at another angle according to an embodiment of the present application.

[0013] Figure 3 This is a schematic diagram showing the use of an osteotomy guide according to an embodiment of the present application.

[0014] Figure 4 This is a schematic diagram showing the use of an osteotomy guide according to an embodiment of the present application.

[0015] Figure 5 This is a schematic diagram showing the use of an osteotomy guide according to an embodiment of the present application.

[0016] Figure 6 This is a structural schematic diagram of an osteotomy guide plate shown at another angle according to an embodiment of the present application.

[0017] Figure 7 It is a structural schematic diagram of another osteotomy guide plate according to an embodiment of the present application.

[0018] Figure 8 This is a structural schematic diagram of another osteotomy guide plate from another perspective according to an embodiment of the present application.

[0019] Figure 9 This is a structural schematic diagram of another osteotomy guide plate from another perspective according to an embodiment of the present application.

[0020] Figure 10 This is a schematic diagram showing the use of an osteotomy guide according to an embodiment of the present application.

[0021] Figure 11 This is a schematic diagram of the installation of an osteotomy guide according to an embodiment of the present application.

[0022] Figure 12 It is a structural schematic diagram of a slide hammer according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0024] In traditional osteotomy surgery, an osteotomy guide is typically fixed to the bone, and then an oscillating saw is used to cut along the direction defined by the guide. Specifically, the guide typically includes an osteotomy slot, which extends through the guide toward the bone, allowing the saw's blade to enter the slot. The slot limits the saw's position in one direction, restricting its movement to the direction of the slot, allowing the saw to perform osteotomy in a specific direction.

[0025] By combining multiple osteotomy guides, a specific size and shape can be removed from the bone. However, the need to combine multiple osteotomy guides to perform the osteotomy requires a large number of bone screws to secure the guides. Furthermore, since the osteotomy guides are secured solely by bone screws and lack a retaining mechanism, if the oscillating saw tilts at a certain angle while cutting within the osteotomy slot, it is possible for portions of the saw to extend beyond the confines of the slot, resulting in partial over-cutting and potentially injuring the patient.

[0026] The present application provides an osteotomy guide plate 10 . Figure 1 What is shown is the structural diagram of the osteotomy guide plate 10. Figure 1 As shown in the structural diagram, the osteotomy guide plate 10 comprises: a guide portion 101, a fixing portion 103 and at least two positioning posts 104. The guide portion 101 and the fixing portion 103 both comprise a fitting surface for fitting with the bone. Specifically, Figure 2FIG. 1 is a schematic structural diagram of the osteotomy guide plate 10 from another angle. Figure 2 As shown, the guide portion 101 may include a first contact surface M1, and the fixing portion 103 may include a second contact surface M2. Furthermore, the osteotomy guide 10 may have only one side that contacts the bone. That is, the first contact surface M1 and the second contact surface M2 are located on the same side of the osteotomy guide 10. The side of the osteotomy guide 10 with the contact surface is referred to as the contact side. In other words, the side of the osteotomy guide 10 with the contact surfaces of the guide portion 101 and the fixing portion 103 is referred to as the contact side of the osteotomy guide 10.

[0027] The guide portion 101 is connected to one end of the fixing portion 103. The guide portion 101 is provided with at least one guide slot 1010. Each guide slot 1010 extends from a side of the guide portion 101 away from the fixing portion 103 and in a different direction toward the fixing portion 103. The side of the guide portion 101 away from the fixing portion 103 may be an edge that is not directly connected to the fixing portion 103. Figure 1 The figure shows two side edges of the fixing portion 101, namely side edge B1 and side edge B2. Side edge B1 is directly connected to the fixing portion 103, while side edge B2 is connected to the fixing portion 103 via other side edges and is not directly connected to the fixing portion 103. Multiple different directions intersect and are all located in the plane where the bonding surface M1 is located.

[0028] The guide grooves 1010 all penetrate the guide portion 101 in the direction toward the bonding surface. Figure 1 , a first direction Y, a second direction X, and a third direction Z toward the bonding surface are shown. The intersecting directions are all located within the plane defined by the first direction Y and the second direction X. The third direction Z is perpendicular to the plane defined by the first direction Y and the second direction X. The aforementioned guide grooves 1010 all extend through the guide portion 101 in the direction toward the bonding surface. That is, the guide grooves 1010 extend through the guide portion 101 in the third direction Z.

[0029] Furthermore, the cross-sectional shape of the guide portion 101 in the third direction Z may be, but is not limited to, an L-shape or a rectangle. The cross-sectional shape of the guide portion 101 in the third direction Z may be flexibly set according to actual needs.

[0030] By making each guide groove 1010 in the third direction Z and passing through the guide portion 101, a medical tool (such as an oscillating saw) can be inserted into the guide groove 1010 in the third direction Z and then extended out of the guide groove 1010. The portion of the medical tool extending out of the guide groove 1010 can be used to cut the bone. At the same time, the guide portion 101 around each guide groove 1010 can also limit the position of the medical tool on both sides of the cutting direction. For example, when the medical tool is moving along the guide groove 1010, the medical tool can be moved forward and backward. Figure 1When the first guide groove 1011 is cutting, the two sides in the cutting direction are the two sides in the second direction X. When the medical knife is cutting along the second guide groove 1012, the two sides in the cutting direction are the two sides in the first direction Y.

[0031] At least two positioning posts 104 are located on one side of the fitting surface M2 of the fixing portion 103 and are used to fix the osteotomy guide 10 to the bone. At least one of the ends of all guide slots 1010 facing the fixing portion 103 is correspondingly provided with a positioning post 104.

[0032] In addition, the guide column 104 is correspondingly arranged at the end of the guide groove 1010, that is, the edge of the end of the guide groove 1010 is flush with the edge of the corresponding guide column 104, or, the edge of the end of the guide groove 1010 is located on the corresponding guide column 104, that is, the projection of the edge of the end of the guide groove 1010 on the corresponding guide column 104 is located inside the guide column 104.

[0033] Before using the osteotomy guide plate 10, refer to Figure 3 The schematic diagram of the osteotomy guide plate 10 in use is shown in FIG. 1 . First, a positioning hole K is drilled at a preset position on the bone corresponding to the positioning column 104 of the osteotomy guide plate 10. The diameter of the positioning hole K is smaller than or equal to the diameter of the positioning column 104 to achieve a stable fixation of the osteotomy guide plate 10. Figure 4 The figure shows a schematic diagram of the osteotomy guide plate 10 in use. The osteotomy guide plate 10 is fixed to the bone by the cooperation between the positioning column 104 and the pre-drilled positioning hole K. At this time, the medical knife is inserted into any guide groove 1010, and the bone can be cut by the part of the medical knife extending from the other side of the guide groove 1010. Specifically, the effect of bone cutting by the osteotomy guide plate 10 can be referred to Figure 5 The schematic diagram of the osteotomy guide plate 10 during use is shown.

[0034] Also, refer to Figure 5As shown, when the medical knife is cutting within the guide slot 1010 corresponding to the positioning post 104, if the medical knife swings, the portion extending from the guide slot 1010 may tilt toward the end of the guide slot 1010. In this case, the medical knife may extend beyond the range restricted by the guide slot 1010. However, since at least one of the ends of all guide slots 1010 facing the fixing portion 103 is provided with a positioning post 104, even if the medical knife swings, that is, the direction of the medical knife does not strictly align with the third direction Z, the portion of the medical knife that tilts and extends from the guide slot 1010 in the cutting direction will be blocked by the positioning post 104. Since the positioning post 104 is provided at the end of the guide slot 1010, the medical knife will be blocked by the positioning post 104 and confined within the range of the guide slot 1010. Even if the medical knife tilts and tends to extend beyond the range of the guide slot 1010, it will be blocked at the end of the guide slot 1010 by the positioning post 104.

[0035] Therefore, by providing a positioning post 104 at at least one of the ends of all guide grooves 1010 toward the fixed portion 103, the swing range of the medical tool can be effectively limited. Thus, the medical tool can be restricted to the range of the guide groove 1010 where the positioning post 104 is provided at the end, thereby reducing or even avoiding the occurrence of local multiple cuts.

[0036] Furthermore, the positioning post 104 itself can also secure the osteotomy guide 10 to the bone. Therefore, by positioning the positioning post 104 in a specific position, the positioning post 104 can simultaneously secure the osteotomy guide 10 and reduce or even avoid the occurrence of multiple cuts, thereby reducing or even avoiding the occurrence of multiple cuts at a relatively low cost.

[0037] It should be noted that the osteotomy guide 10 is divided into the guide portion 101, the fixing portion 103 and at least two positioning posts 104 for the purpose of clearly illustrating the structure of the osteotomy guide 10. In fact, the above structures included in the osteotomy guide 10 can be formed in one piece.

[0038] In some embodiments, as Figure 1 As shown, the guide groove 1010 includes a first guide groove 1011 and a second guide groove 1012. The first guide groove 1011 and the second guide groove 1012 extend along a first direction Y and a second direction X that intersect.

[0039] Specifically, Figure 1The first direction Y and the second direction X are shown in FIG. The first direction Y intersects the second direction X. Preferably, the first direction Y is perpendicular to the second direction X, but is not limited thereto. In other embodiments, the angle between the first direction Y and the second direction X may be an angle other than 90 degrees. In this embodiment, the first direction Y is perpendicular to the second direction X. Moreover, the first direction Y and the second direction X are both located in the plane where the bonding surface is located, that is, the bonding surface may be located Figure 1 In the plane formed by the first direction Y and the second direction X shown in FIG.

[0040] A positioning post 104 is provided at at least one of the ends of the first guide groove 1011 and the second guide groove 1012 facing the fixed portion 103. The positioning post 104 may be provided at at least one of the ends of the first guide groove 1011 and the second guide groove 1012 facing the fixed portion 103. Alternatively, the positioning post 104 may be provided at the end of the first guide groove 1011 facing the fixed portion 103, or the positioning post 104 may be provided at the end of the second guide groove 1012 facing the fixed portion 103. Alternatively, the positioning post 104 may be provided at both the end of the first guide groove 1011 and the end of the second guide groove 1012 facing the fixed portion 103. Alternatively, the positioning post 104 may be provided at both the end of the first guide groove 1011 and the end of the second guide groove 1012 facing the fixed portion 103. Alternatively, the same positioning post 104 may be provided at both the end of the first guide groove 1011 and the end of the second guide groove 1012 facing the fixed portion 103.

[0041] In the above-mentioned embodiment, preferably, the end of the first guide groove 1011 toward the fixed part 103 and the end of the second guide groove 1012 toward the fixed part 103 are both provided with corresponding positioning columns 104, or the end of the first guide groove 1011 toward the fixed part 103 and the end of the second guide groove 1012 toward the fixed part 103 are both provided with the same positioning column 104.

[0042] With this arrangement, the positioning column 104 can be located at a specific position so that the positioning column 104 can simultaneously fix the osteotomy guide plate 10 and reduce or even avoid the occurrence of local multiple cuts, thereby reducing or even avoiding the occurrence of local multiple cuts at a lower cost.

[0043] In some embodiments, reference Figure 1 As shown, the first guide groove 1011 and the second guide groove 1012 are each provided with a corresponding positioning post 104 at the end facing the fixing portion 103. That is, the first guide groove 1011 is provided with a positioning post 104 at the end facing the fixing portion 103, and the second guide groove 1012 is provided with another positioning post 104 at the end facing the fixing portion 103.

[0044] The diameter of the positioning post 104 corresponding to the end of the first guide groove 1011 toward the fixing portion 103 is greater than or equal to the width W1 of the first guide groove 1011. The diameter of the positioning post 104 corresponding to the end of the second guide groove 1012 toward the fixing portion 103 is greater than or equal to the width W2 of the second guide groove 1012. Figure 1 1 shows the width W1 of the first guide groove 1011 and the width W2 of the second guide groove 1012. The diameter of the guide post 104 corresponding to the end of the first guide groove 1011 is greater than or equal to the width W1, and the diameter of the guide post 104 corresponding to the end of the second guide groove 1012 is greater than or equal to the width W2.

[0045] By making the diameter of the guide post 104 greater than or equal to the width of the corresponding guide groove, the medical tool can be effectively prevented from escaping from the limit of the guide post 104 through the gap formed by the width difference between the guide groove and the guide post 104. Therefore, it can be ensured that the occurrence of local multiple cuts can be reduced or even avoided at a lower cost.

[0046] In some embodiments, as Figure 1 and Figure 2 As shown, the end of the first guide groove 1011 facing the fixing portion 103 and the end of the second guide groove 1012 facing the fixing portion 103 are correspondingly provided with the same positioning post 104 .

[0047] The diameter of the positioning post 104 is greater than or equal to the maximum width of the width W1 of the first guide groove 1011 and the width W2 of the second guide groove 1012. At this point, the end of the first guide groove 1011 facing the fixed portion 103 and the end of the second guide groove 1012 facing the fixed portion 103 are both located within the diameter range of the positioning post 104. In other words, the projections of the edges of the first guide groove 1011 and the second guide groove 1012 facing the fixed portion 103 on the positioning post 104 are located within the positioning post 104.

[0048] By ensuring that the diameter of the guide post 104 is greater than or equal to the maximum width of the corresponding guide groove, that is, the maximum width between the width W1 and the width W2, the medical tool can be effectively prevented from escaping from the limit of the guide post 104 through the gap formed by the width difference between the guide groove and the guide post 104. Therefore, it is ensured that the occurrence of local multiple cuts can be reduced or even avoided at a lower cost.

[0049] By providing the same positioning column 104 at the end of the first guide groove 1011 facing the fixing portion 103 and the end of the second guide groove 1012 facing the fixing portion 103, the number of guide columns 104 can be reduced, thereby reducing the space required for providing multiple guide columns 104 at the ends of the corresponding guide grooves, thereby reducing the volume of the osteotomy guide 10 and the material required for manufacturing the osteotomy guide 10. Furthermore, it is possible to simultaneously achieve the reduction or even avoidance of local multiple cuts at a lower cost and better realize the small design of the osteotomy guide 10.

[0050] In some embodiments, as Figure 2 As shown, and reference Figure 4 and Figure 5 As shown, the shape of at least one of the fitting surfaces of the guide portion 101 and the fixing portion 103 includes a curved surface. The curved surface structure is recessed in the direction away from the fitting side. The shape of the fitting surface M1 of the guide portion 101 may include a curved surface, or the fitting surface M1 of the fixing portion 103 may include a curved surface, or both the fitting surface M1 of the guide portion 101 and the fitting surface M2 of the fixing portion 103 may include curved surfaces. Preferably, both the fitting surface M1 of the guide portion 101 and the fitting surface M2 of the fixing portion 103 include curved surfaces, so that the overall fitting surface of the osteotomy guide 10 can better fit the bone.

[0051] Since there is a large area of ​​radian on the surface of the bone, by making the shape of at least one of the fitting surfaces of the guide portion 101 and the fixing portion 103 include a radian, the shape of the fitting surface can be made to fit the shape of the bone surface as closely as possible, thereby increasing the contact area between the osteotomy guide plate 10 and the bone, and further, enhancing the ability of the bone to fix the osteotomy guide plate 10, and enhancing the stability of the osteotomy guide plate 10, thereby avoiding the influence of the instability of the osteotomy guide plate 10 on the osteotomy process.

[0052] In some embodiments, Figure 7 The figure shows the structure of another osteotomy guide. Figure 7 As shown, the guide portion 101 is provided with a third guide groove 1013. The third guide groove 1013 extends along the second direction X.

[0053] The guide portion 101 includes a first cutout portion 1014 and a second cutout portion 1015. The first cutout portion 1014 is located on the side of the third guide groove 1013 facing away from the fixing portion 103. The second cutout portion 1015 is located on the side of the third guide groove 1013 facing the fixing portion 103. The first cutout portion 1014 is larger than the second cutout portion 1015 in the direction toward the bonding side. Furthermore, the portion of the first cutout portion 1014 that is larger than the second cutout portion 1015 in the direction toward the bonding side extends in the direction toward the bonding side.

[0054] Specifically, Figure 7The first direction Y, the second direction X and the third direction Z are also shown in FIG. Figure 8 and Figure 9 Schematic diagrams of the structure of the osteotomy guide plate 10 from other perspectives are shown. Figure 7 、 Figure 8 and Figure 9 As shown, the size of the first section 1014 is larger than that of the second section 1015 in the direction toward the bonding side, that is, the size of the first section 1014 is larger than that of the second section 1015 in the third direction Z. The portion where the first section 1014 is larger than the second section 1015 extends in the direction toward the bonding side, that is, extends in the third direction Z.

[0055] A positioning post 104 is correspondingly provided at the end of the third guide groove 1013 facing the fixing portion 103 .

[0056] Specifically, Figure 10 What is shown is a schematic diagram of the osteotomy guide plate 10 during use. Figure 10 As shown, when using the osteotomy guide 10, the bone is first cut using the osteotomy guide with the first and second guide grooves 1011, 1012. The guide post of the osteotomy guide with the third guide groove 1013 is then installed into the positioning hole K drilled for the previous osteotomy guide. At this point, the first cutting portion 1014 is flush with the plane cut along the second direction X of the bone. At this point, inserting the medical knife into the third guide groove 1013 allows for precise osteotomy.

[0057] It should be noted that Figure 10 The embodiment shown is that the first cut portion 1014 is flush with the plane cut on the bone in the second direction X, but in other embodiments it is not limited to this. After the osteotomy guide 10 is fixed, its first cut portion 1014 can also be flush with the plane cut on the bone in the first direction Y.

[0058] With this arrangement, the positioning column 104 can be located at a specific position so that the positioning column 104 can simultaneously fix the osteotomy guide 10 and reduce or even avoid the occurrence of local multiple cuts. Therefore, the occurrence of local multiple cuts can be reduced or even avoided at a lower cost, and mainly the occurrence of local multiple cuts during the additional cut operation can be reduced or even avoided at a lower cost.

[0059] In some embodiments, when the guide portion 101 is provided with a first guide groove 1011 and a second guide groove 1012, and the first guide groove 1011 and the second guide groove 1012 extend along intersecting first and second directions Y and X, the diameter of the guide post 104 includes a first diameter. When the guide portion 101 is provided with a third guide groove 1013, and the third guide groove 1013 extends along the second direction X, the diameter of the guide post 104 includes a second diameter. The second diameter is greater than the first diameter.

[0060] As previously mentioned, the osteotomy guide plate with the third guide groove 1013 needs to be installed in the previously drilled positioning hole K. However, since the positioning hole has already been used to accommodate the osteotomy guide plate with the first and second guide grooves 1011, 1012, the diameter of the positioning hole K will inevitably increase due to friction. Therefore, the second diameter must also be larger than the first diameter to ensure that the osteotomy guide plate with the third guide groove 1013 is stably installed in the positioning hole K.

[0061] In some embodiments, as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the osteotomy guide 10 also includes a bone pin engaging portion 102. A bone pin engaging hole 1021 is provided within the bone pin engaging portion 102 for receiving a bone pin. An extension of the central axis of the bone pin engaging hole 1021 forms an angle with the central axis of the guide post 104. The cross-section of the bone pin engaging hole 1021 may be circular, but is not limited to this. In other embodiments, the cross-section of the bone pin engaging hole 1021 may also have other shapes. Furthermore, the bone pin engaging portion 102 may have only one bone pin engaging hole 1021.

[0062] Figure 6 Shown is a structural diagram of the osteotomy guide plate 10 at another angle, as shown in FIG. Figure 6 As shown, there is an angle A1 between the central axis of the bone needle mating hole 1021 and the central axis of the guide column 104. Specifically, the guide column 104 can be perpendicular to the fitting surface M2 of the fixing portion 103. In this case, the central axis of the guide column 104 is the branch line extending along the third direction Z. The angle between the central axis of the bone needle mating hole 1021 and the central axis of the guide column 104 is the angle between the central axis of the bone needle mating hole 1021 and the straight line along the third direction Z.

[0063] It should be noted that the central axis of the guide post 104 being a straight line extending along the third direction Z is only a feasible embodiment, but is not limited thereto in other embodiments.

[0064] Because the central axis of the bone pin mating hole 1021 is at an angle to the central axis of the guide post 104, the bone pin disposed within the bone pin mating hole 1021 can provide multiple positional limitations in addition to the guide post 104. Thus, the osteotomy guide 10 can be securely fixed by the bone pins in the bone pin mating hole 1021 cooperating with the guide post 104. Furthermore, because the osteotomy guide 10 is limited by the guide post 104 and the bone pins in the bone pin mating hole 1021, only one bone pin mating hole 1021 and its corresponding bone pin can be provided. This avoids the inconvenience of disassembly and assembly associated with multiple bone pin mating holes 1021 and bone pins, thereby ensuring secure fixation of the osteotomy guide 10 while improving its ease of assembly and disassembly.

[0065] In some embodiments, the guide portion 101 is connected to the bone pin engaging portion 102 on the side facing the fixing portion. The central axis of the bone pin engaging hole 1021 extends toward the side where the guide post 104 is provided. One end of the bone pin engaging portion 102 is connected to the fixing portion 103, and the other end extends along the side facing away from the bonding side and in the second direction X.

[0066] The bone pin fitting part 102 extends simultaneously along the side facing away from the fitting side and the second direction X. After the osteotomy guide 10 is fixed to the bone, a larger space can be left on the side of the bone pin fitting part 102 facing the bone, thereby facilitating the retractor operation during surgery.

[0067] It should be noted that the aforementioned retractor operation is an operation in which a small area of ​​skin and flesh is cut open during surgery, and then the skin and flesh are hooked with a medical hook and pulled apart to expose the bone that needs to be osteotomized.

[0068] In some embodiments, Figure 11 Schematic diagram of the osteotomy guide plate 10 when it is installed. Figure 11 As shown, the fixing portion 103 of the osteotomy guide 10 is provided with a mounting portion 1031 for mating with the slide hammer 20. The striking section of the slide hammer 20 is connected to the mounting portion 1031. The slide hammer 20 strikes the mounting portion 1031 to mate the guide post 104 of the osteotomy guide 10 with the positioning hole K. Mounting the osteotomy guide 10 with the slide hammer 20 can further securely fix the osteotomy guide 10.

[0069] More specifically, see Figure 12The structural diagram of the slide hammer 20 is shown, and the slide hammer 20 includes a hammer connection portion 21. The shape of the hammer connection portion 21 corresponds to the shape of the opening of the mounting portion 1031. The shape of the hammer connection portion 21 is inconsistent in length. When the hammer connection portion 21 in the slide hammer 20 is inserted into the mounting portion 1031 and rotated to a certain angle, the hammer connection portion 21 and the mounting portion 1031 are connected. The handle 22 strikes the first limit portion 23, and the impact force can remove the osteotomy guide 10 from the bone. The handle 22 strikes the second limit portion 24, and the impact force can drive the osteotomy guide 10 into the bone.

[0070] The present application also provides an osteotomy device, comprising any one of the above-mentioned osteotomy guide plates 10 .

[0071] The above embodiments of the present application can complement each other if no conflict occurs.

[0072] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0073] The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0074] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0075] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An osteotomy guide plate, characterized in that: include: A guide portion, a fixing portion and at least two positioning posts; the guide portion and the fixing portion both include a fitting surface for fitting with the bone; the side of the osteotomy guide plate provided with the fitting surface is the fitting side; The guide portion is connected to one end of the fixing portion; the guide portion is provided with at least one guide groove; each guide groove starts from a side of the guide portion away from the fixing portion and extends in different directions toward the fixing portion; a plurality of the different directions intersect and are all located in the plane where the fitting surface is located; the guide grooves all penetrate the guide portion in a direction toward the fitting surface; The at least two positioning posts are both located on one side of the fitting surface of the fixing portion and are at least used to fix the osteotomy guide plate to the bone; at least one of the ends of all the guide grooves facing the fixing portion is correspondingly provided with the positioning post.

2. The osteotomy guide according to claim 1, characterized in that The guide groove includes a first guide groove and a second guide groove; the first guide groove and the second guide groove extend along intersecting first and second directions; The positioning post is correspondingly provided at at least one of the ends of the first guide groove and the second guide groove facing the fixing portion.

3. The osteotomy guide according to claim 2, characterized in that: The first guide groove faces the end of the fixing portion, and the second guide groove faces the end of the fixing portion, respectively, and the positioning post is provided correspondingly; The diameter of the positioning column corresponding to the end of the first guide groove toward the fixed part is greater than or equal to the width of the first guide groove; the diameter of the positioning column corresponding to the end of the second guide groove toward the fixed part is greater than or equal to the width of the second guide groove.

4. The osteotomy guide according to claim 2, characterized in that: The end of the first guide groove facing the fixing portion and the end of the second guide groove facing the fixing portion are correspondingly provided with the same positioning post; The diameter of the positioning column is greater than or equal to the maximum width between the width of the first guide groove and the width of the second guide groove.

5. The osteotomy guide according to claim 1, characterized in that The shape of at least one of the fitting surfaces of the guide portion and the fixing portion comprises an arc surface; and the arc surface structure is recessed in a direction facing away from the fitting side.

6. The osteotomy guide according to claim 1, characterized in that The guide portion is provided with a third guide groove; the third guide groove extends along the second direction; The guide portion includes a first cross-section and a second cross-section; the first cross-section is located on the side of the third guide groove facing away from the fixing portion; the second cross-section is located on the side of the third guide groove facing the fixing portion; the size of the first cross-section in the direction toward the bonding side is larger than the size of the second cross-section; and the portion of the first cross-section that is larger than the second cross-section in the direction toward the bonding side extends in the direction toward the bonding side; The positioning column is correspondingly provided at the end of the third guide groove facing the fixing portion.

7. The osteotomy guide according to claim 1, characterized in that: When the guide portion is provided with a first guide groove and a second guide groove, and the first guide groove and the second guide groove extend along intersecting first and second directions, the diameter of the positioning column includes a first diameter; when the guide portion is provided with a third guide groove; and the third guide groove extends along the second direction, the diameter of the positioning column includes a second diameter; and the second diameter is larger than the first diameter.

8. The osteotomy guide according to claim 1, characterized in that: It also includes a bone needle matching part; a bone needle matching hole is provided in the bone needle matching part, and the bone needle matching hole is used to set the bone needle; there is an angle between the central axis of the bone needle matching hole and the central axis of the positioning column.

9. The osteotomy guide according to claim 8, characterized in that: The guide portion is connected to the bone needle matching portion on a side facing the fixing portion; the central axis of the bone needle matching hole extends toward the side where the positioning column is set; one end of the bone needle matching portion is connected to the fixing portion, and the other end extends along the side facing away from the fitting side and at the same time along the second direction.

10. An osteotomy device, characterized in that: The osteotomy guide plate comprises the osteotomy guide plate according to any one of claims 1 to 9.

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