Surgical guide plate and manufacturing method thereof

Abstract

The invention discloses a surgical guide plate and a manufacturing method thereof.The surgical guide plate comprises a plate body, at least two guide grooves are formed in the plate body, the guide grooves penetrate through the plate body, the guide grooves are communicated with one another and form an included angle, and the included angle is an osteotomy included angle; the positioning part is arranged on the edge of the plate body, and the positioning part is used for positioning the relative position between two bone blocks after osteotomy. By the adoption of the scheme, the guide grooves penetrating through the plate body can guide the osteotomy path of an osteotomy tool such as a swing saw blade or a milling cutter in an operation, the guide grooves communicate with one another, the osteotomy included angle is provided, and the osteotomy accuracy is improved. The positioning part can position the relative positions of the two bone blocks after osteotomy, so that the accuracy of bone block positioning is improved, the treatment effect of operation deformity correction is improved, and postoperative pain is reduced. In addition, the positioning part is arranged at the edge of the plate body, so that the edge of the plate body can be used for positioning.

Description

Technical Field

[0001] The invention relates to a medical device, in particular to a surgical guide plate and a manufacturing method thereof, and in particular to a surgical guide plate for hallux valgus osteotomy and a manufacturing method thereof. Background Art

[0002] Hallux valgus is a common disease in clinical practice. Hallux valgus causes pain and deformity of the foot, which has an adverse effect on the patient's life. Hallux valgus osteotomy is an effective method for treating hallux valgus. Commonly used surgical methods (such as Chevron osteotomy) include osteotomy, moving bone blocks, and fixing bone blocks. The osteotomy position, bone block fixation position, and bone block fixation angle in osteotomy surgery affect the correction effect and long-term efficacy. If the osteotomy or fixation is inaccurate, it will lead to the inability to obtain good correction, causing postoperative pain, and severe cases may require another operation.

[0003] Hallux valgus osteotomy requires a high level of operator skill. Currently, in hallux valgus osteotomy, the surgeon relies on vision when performing osteotomy and fixing the position and angle of the bone fragments. The surgeon is highly dependent on experience and has difficulty in controlling the operation accurately, which may result in poor osteotomy angles and adversely affect the treatment effect. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of inaccurate osteotomy, poor bone fixation position and angle in osteotomy orthopedic surgery in the prior art, especially inaccurate osteotomy, poor bone fixation position and angle in hallux valgus osteotomy orthopedic surgery, and to provide a surgical guide and a manufacturing method thereof.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A surgical guide, comprising:

[0007] A plate body, wherein at least two guide grooves are provided on the plate body, the guide grooves penetrate the plate body, the guide grooves are interconnected and arranged at an angle, and the angle is an osteotomy angle;

[0008] A positioning portion is arranged at the edge of the plate body and is used to locate the relative position between two bone blocks after osteotomy.

[0009] In this solution, the guide grooves running through the plate body can guide the osteotomy path of the osteotomy tool, such as an oscillating saw blade or a milling cutter, during surgery, and the guide grooves are interconnected and provide an osteotomy angle, thereby improving the accuracy of osteotomy. The positioning portion can locate the relative position of the two bone blocks after osteotomy, thereby improving the accuracy of bone block positioning, thereby improving the treatment effect of surgical correction of deformity and reducing postoperative pain. In addition, the positioning portion is arranged at the edge of the plate body, so that the edge of the plate body can be used for positioning.

[0010] Preferably, the positioning portion includes a first positioning surface and a second positioning surface, and the first positioning surface and the second positioning surface are respectively used to fit with two bone blocks, so that the relative position between the two bone blocks after osteotomy is determined.

[0011] In this solution, the first positioning surface and the second positioning surface are fitted with the two bone blocks, so that the contact area between the positioning part and the bone blocks can be increased, thereby improving the accuracy of positioning the bone blocks.

[0012] Preferably, the first positioning surface is arranged in parallel with the second positioning surface or has a preset angle therebetween, and there is a preset distance between the first positioning surface and the second positioning surface.

[0013] In this solution, the first positioning surface and the second positioning surface are arranged in parallel or at a preset angle, so as to locate the relative angle between the bone blocks; there is a preset spacing between the first positioning surface and the second positioning surface, so as to locate the relative distance between the bone blocks; this not only improves the convenience of the positioning operation, but also enables the relative positions of the two bone blocks to be accurately determined.

[0014] Preferably, a groove is provided at the edge of the plate body; one of the first positioning surface and the second positioning surface is a groove surface inside the groove, and the other is a surface on the plate body adjacent to the groove, and the surface has a preset interval with the groove surface and has the same orientation.

[0015] In this solution, a groove is set at the edge of the plate body, and the first positioning surface and the second positioning surface are formed by utilizing the groove surface in the groove and the surface on the plate body adjacent to the groove and facing the same direction and having a preset interval; the structure is simple and easy to design and manufacture.

[0016] Preferably, the groove extends along the edge of the plate body and forms a long strip of quadrilateral structure; one of the first positioning surface and the second positioning surface is a side surface of the plate body corresponding to the long side of the groove, and the other is a groove surface in the groove facing the same direction as the side surface.

[0017] In the present solution, by adopting the above structural form, the groove is in the shape of a long strip, and the side surface of the plate body corresponding to the long side of the groove can be used as the positioning surface, and the longer groove surface in the groove can be used as the positioning surface. The positioning surface has a certain length, so that it can fit with various parts of the bone block, thereby improving the accuracy of positioning between the bone blocks. In addition, the groove has a simple structure and can be set using the edge of the plate body, which is easy to arrange.

[0018] Preferably, the surgical guide plate comprises at least three guide grooves, at least three guide grooves intersect and form at least two osteotomy angles, at least two positioning parts are provided on the plate body, and the osteotomy angles correspond to the positioning parts one by one.

[0019] In this solution, the surgical guide can provide at least two osteotomy angles, and the surgeon can select the appropriate osteotomy angle according to the needs during the operation, thereby improving the flexibility during the operation. In addition, at least two positioning parts are provided, and the positioning parts correspond to the osteotomy angles. During the operation, the surgeon can select the corresponding positioning part according to the osteotomy angle actually used, thereby making the operation not only flexible, but also accurately positioning the bone block.

[0020] Preferably, at least three of the guide grooves have a reference groove, and any one of the remaining guide grooves forms the osteotomy angle with the reference groove.

[0021] In this solution, one of the multiple guide grooves can be used as a reference groove, and the other guide grooves reuse the reference groove to form different osteotomy angles, making the arrangement more compact.

[0022] Preferably, the plate body is a polygonal structure, and the plurality of positioning portions are located on different sides of the plate body.

[0023] In this solution, this arrangement can make the size of the plate smaller and the structure more compact.

[0024] Preferably, the plate body has a mark, and the mark is used to determine the corresponding relationship between the positioning portion, the guide groove and the corresponding osteotomy angle.

[0025] In this solution, the positioning portion can be matched with the corresponding osteotomy angle quickly and accurately to avoid misoperation.

[0026] Preferably, the plate body is further penetrated by a fixing hole, and at least one of the fixing holes is arranged near the intersection of the guide grooves.

[0027] In this solution, the fixing hole can allow the fixing component to pass through and fix the surgical guide to the bone block, avoiding the surgeon from pressing the guide against the bone surface with his hands, thereby facilitating operations during surgery and reducing obstruction of the surgical field; in addition, arranging the fixing hole close to the intersection of the guide grooves can make the arrangement and positioning of the intersection more secure.

[0028] Preferably, the surgical guide is used for osteotomy correction surgery for hallux valgus.

[0029] A method for manufacturing a surgical guide, the method for manufacturing the surgical guide as described above, the method comprising:

[0030] Acquire medical imaging data of the bone to be osteotomized;

[0031] Acquire osteotomy information determined according to the medical image data, the osteotomy information including the position of the osteotomy, the osteotomy angle, and the relative position of the two bone blocks after the osteotomy, wherein the relative position of the two bone blocks is related to the position of the osteotomy and the osteotomy angle;

[0032] Obtaining the osteotomy angle and the corresponding guide groove of the surgical guide determined according to the osteotomy position and the osteotomy angle, and the positioning portion determined according to the relative positions of the two bone blocks after the osteotomy;

[0033] The surgical guide is designed according to the guide groove and the positioning portion.

[0034] In this solution, through the above steps, the osteotomy position and osteotomy angle can be planned before the operation according to the patient's bone condition, and the osteotomy angle of the surgical guide can be determined; at the same time, the relative positions of the two bone blocks are determined by the determined one or more osteotomy positions and osteotomy angles, and the positioning part of the surgical guide is determined according to the relative position. The surgical guide manufactured through the above steps can match the patient's bone condition, and while guiding the intraoperative operation, it can also improve the accuracy of osteotomy and corrective surgery, reduce postoperative pain, and improve the therapeutic effect of the surgery.

[0035] The positive and progressive effect of the present invention is that the guide grooves penetrating the plate body can guide the osteotomy path of the osteotomy tool, such as the saw blade of an oscillating saw or a milling cutter, during surgery, and the guide grooves are interconnected and provide an osteotomy angle, thereby improving the accuracy of osteotomy. The positioning part can locate the relative position of the two bone blocks after osteotomy, thereby improving the accuracy of bone block positioning, thereby improving the treatment effect of surgical correction of deformity and reducing postoperative pain. In addition, the positioning part is arranged at the edge of the plate body, so that the edge of the plate body can be used for positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of a hallux valgus osteotomy, in which the thumb is cut into two bone pieces, and the relative positions of the two bone pieces are located;

[0037] Figure 2 A schematic diagram of the planar structure of a surgical guide provided by an embodiment of the present invention;

[0038] Figure 3 A schematic diagram of the three-dimensional structure of a surgical guide provided by an embodiment of the present invention, wherein the first positioning portion is partially enlarged;

[0039] Figure 4 Schematic diagram of another hallux valgus osteotomy procedure in which the thumb is cut into two bone pieces.

[0040] Description of Reference Numerals

[0041] Surgical guide 1, plate body 10, guide groove 11, first guide groove 111, second guide groove 112, third guide groove 113, positioning portion 13, first positioning portion 131, first groove surface 1311, third groove surface 1312, second groove surface 1313, second positioning portion 132, first side surface 14, third surface 15, second side surface 16, osteotomy surface 2, first bone block 21, second bone block 22, first bone block surface 211, bone block cutting surface 212, second bone block surface 221, movement adjustment direction X, angle adjustment direction Y. DETAILED DESCRIPTION

[0042] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0043] The embodiment of the present invention provides a surgical guide 1, which is used in osteotomy surgery. Figure 1 As shown, it can be used for osteotomy correction surgery of hallux valgus. During the operation, the surgical site of the patient's foot is first incised and exposed according to conventional surgical operations, and part of the protruding bone is longitudinally cut off to expose the osteotomy surface 2; in the subsequent steps, a V-shaped groove is cut at the osteotomy surface 2, so that the bone of the foot is divided into two bone blocks, namely a first bone block 21 and a second bone block 22; then, the first bone block 21 and the second bone block 22 are relatively moved along the cut surface direction of the V-shaped groove, and the second bone block 22 is in a suitable position relative to the first bone block 21.

[0044] The surgical guide plate 1 provided by the present invention is used in the surgical process, such as Figure 2 and Figure 3 As shown, the surgical guide 1 comprises:

[0045] A plate body 10, wherein at least two guide grooves 11 are provided on the plate body 10, and the guide grooves 11 penetrate the plate body 10, and the guide grooves 11 are interconnected and arranged at an angle, and the angle is an osteotomy angle;

[0046] The positioning portion 13 is disposed at the edge of the plate body 10 and is used to locate the relative position between the two bone blocks after osteotomy.

[0047] The guide groove 11 that runs through the plate body 10 can guide the osteotomy path of the osteotomy tool, such as an oscillating saw blade or a milling cutter, during surgery, and the guide grooves 11 are interconnected and provide an osteotomy angle, thereby improving the accuracy of osteotomy. The positioning portion 13 can locate the relative position of the two bone blocks after osteotomy, thereby improving the accuracy of bone block positioning, thereby improving the treatment effect of surgical correction of deformity, and reducing postoperative pain. In addition, the positioning portion 13 is arranged at the edge of the plate body 10, so that the edge of the plate body 10 can be used for positioning.

[0048] In a specific implementation, the length and width of the guide groove 11 are not less than the corresponding length and width of the oscillating saw or milling cutter used in osteotomy, so that the oscillating saw or milling cutter can pass through the guide groove 11. In addition, the length of the guide groove 11 is also longer than the cut-off length of the big toe, that is, the length of the groove side of the V-shaped groove.

[0049] The relative position between the two bone blocks includes the relative distance between the two bone blocks, such as Figure 1 The distance in the movement adjustment direction X shown in FIG; and the relative angle between the two bone blocks, as shown in FIG. Figure 1 The angle shown in the figure adjusts the angle in direction Y.

[0050] like Figure 2 and Figure 3 As shown, the guide groove 11 is disposed on the plate body 10 and has a certain distance from the edge of the plate body 10 , and the positioning portion 13 is disposed at the edge of the plate body 10 , and the position of the positioning portion 13 and the guide groove 11 are staggered to facilitate surgical operation.

[0051] Furthermore, the positioning portion 13 includes a first positioning surface and a second positioning surface, and the first positioning surface and the second positioning surface are respectively used to fit with the two bone blocks, so that the relative position between the two bone blocks after osteotomy can be determined. By fitting the first positioning surface and the second positioning surface with the two bone blocks, the contact area between the positioning portion 13 and the bone blocks can be increased, thereby improving the accuracy of positioning the bone blocks. Specifically, the two positioning surfaces are usually flat surfaces, which can fit with the first bone block surface 211 and the second bone block surface 221 respectively.

[0052] Furthermore, the first positioning surface is arranged in parallel with the second positioning surface or has a preset angle, and there is a preset spacing between the first positioning surface and the second positioning surface. The first positioning surface and the second positioning surface are arranged in parallel or at a preset angle, so as to locate the relative angle between the bone blocks; the first positioning surface and the second positioning surface have a preset spacing, so as to locate the relative distance between the bone blocks; this can not only improve the convenience of the positioning operation, but also enable the relative positions of the two bone blocks to be accurately determined.

[0053] like Figure 2 and Figure 3 As shown, the two positioning surfaces in the first positioning portion 131, the first side surface 14 and the first groove surface 1311 are parallel to each other; the two positioning surfaces in the second positioning portion 132, the first side surface 14 and the first groove surface 1311 have a preset angle; by arranging them in parallel or at an angle, the angles of the two bone blocks in the angle adjustment direction Y can be adjusted. In addition, there is a preset spacing between the first side surface 14 and the first groove surface 1311 of the first positioning portion 131 and the second positioning portion 132, and the preset spacing is also the width of the third groove surface 1312; through the preset spacing, the distance between the two bone blocks in the movement adjustment direction X can be adjusted.

[0054] In specific implementation, the first positioning surface and the second positioning surface of the positioning portion 13 adopt a variety of structural forms, and specifically the surface on the plate body 10 can be used as the positioning surface. The embodiment of the present invention provides the following arrangement method, and other embodiments may also have other structural forms. The scope of protection of the present invention should not be limited to the following implementation methods.

[0055] like Figure 2 and Figure 3 As shown, a groove is provided at the edge of the plate body 10; one of the first positioning surface and the second positioning surface is a groove surface in the groove, and the other is a surface on the plate body 10 adjacent to the groove with a preset interval and facing the same direction as the groove surface. By providing a groove at the edge of the plate body 10, the first positioning surface and the second positioning surface are formed by utilizing the groove surface in the groove and the surface on the plate body 10 adjacent to the groove and facing the same direction and having a preset interval; the structure is simple and easy to design and manufacture.

[0056] like Figure 2 and Figure 3 As shown, the plate body 10 is generally a flat plate structure, the groove is sunken in the surface of the plate body 10, and the groove is connected to the edge of the plate body 10, and has a first groove surface 1311, a second groove surface 1313 and a third groove surface 1312; the surfaces adjacent to the groove on the plate body 10 are respectively the first side surface 14, the second side surface 16 and the third surface 15. The same orientation means that the two surfaces arranged along the same direction are the same orientation surfaces with the length, width and height of the plate body 10 as the direction.

[0057] Specifically, the two positioning surfaces of the positioning portion 13 may be the first groove surface 1311 and the first side surface 14. In this case, the relative angle of the two bone blocks can be adjusted by configuring the first groove surface 1311 and the first side surface 14 to be parallel or to form an angle, and the relative distance of the two bone blocks can be adjusted by configuring the distance between the first groove surface 1311 and the first side surface 14 by the third groove surface 1312. Alternatively, the two positioning surfaces of the positioning portion 13 may be the second groove surface 1313 and the second side surface 16. In this case, the relative angle of the two bone blocks can be adjusted by configuring the second groove surface 1313 and the second side surface 16 to be parallel or to form an angle, and the relative distance of the two bone blocks can be adjusted by configuring the distance between the second groove surface 1313 and the second side surface 16 by the third groove surface 1312. Alternatively, the two positioning surfaces of the positioning portion 13 may be the third groove surface 1312 and the third surface 15. In this case, the relative angle of the two bone blocks can be adjusted by configuring the third groove surface 1312 and the third surface 15 to be parallel or at an angle, and the relative distance of the two bone blocks can be adjusted by configuring the distance between the first groove surface 1311 and the third groove surface 1312 and the third surface 15. It is preferred to use the first groove surface 1311 and the first side surface 14, or the second groove surface 1313 and the second side surface 16 as the positioning surfaces, so as to reduce the thickness of the plate body 10.

[0058] like Figure 2 and Figure 3 As shown, the groove extends along the edge of the plate body 10 and forms a long strip quadrilateral structure; one of the first positioning surface and the second positioning surface is the side surface of the plate body 10 corresponding to the long side of the groove, and the other is the groove surface in the groove facing the same direction as the side surface. The groove is long and can use the side surface of the plate body 10 corresponding to the long side of the groove as the positioning surface, and use the longer groove surface in the groove as the positioning surface. The positioning surface has a certain length, so that it can fit with various parts of the bone block, improving the accuracy of positioning between the bone blocks. In addition, the groove structure is simple and can be set using the edge of the plate body 10, which is easy to arrange.

[0059] When the two positioning surfaces are the first groove surface 1311 and the first side surface 14, the first side surface 14 fits with the second bone block surface 221, and the first groove surface 1311 fits with the first bone block surface 211; preferably, the third groove surface 1312 can also fit with the bone block cutting surface 212.

[0060] In specific implementation, the surgical guide 1 can provide multiple osteotomy angles. Specifically, the surgical guide 1 includes at least three guide grooves 11, and at least three guide grooves 11 intersect and form at least two osteotomy angles. At least two positioning parts 13 are provided on the plate body 10, and the osteotomy angles correspond to the positioning parts 13 one by one. The surgical guide 1 can provide at least two osteotomy angles, and the surgical operator can select a suitable osteotomy angle according to the needs during the operation, thereby improving the flexibility during the operation. In addition, at least two positioning parts 13 are provided, and the positioning parts 13 correspond to the osteotomy angles. During the operation, the surgeon can select the corresponding positioning part 13 according to the osteotomy angle actually used, so that the operation is not only flexible, but also the bone block is accurately positioned.

[0061] At least three guide grooves 11 have a reference groove, and any one of the remaining guide grooves 11 forms an osteotomy angle with the reference groove. Among the multiple guide grooves 11, one can be used as a reference groove, and the other guide grooves 11 reuse the reference groove to form different osteotomy angles, making the arrangement more compact.

[0062] like Figure 2 and Figure 3 As shown, the plate body 10 has a first guide groove 111, a second guide groove 112 and a third guide groove 113, which intersect and have an angle between each other. Among them, the first guide groove 111 can be used as a reference groove, and a first osteotomy angle is formed between the second guide groove 112 and the reference groove, and the first positioning portion 131 corresponds to the first osteotomy angle; a second osteotomy angle is formed between the third guide groove 113 and the reference groove, and the second positioning portion 132 corresponds to the second osteotomy angle. Specifically, when the surgeon uses the first osteotomy angle to perform osteotomy, the first positioning portion 131 is used to position the two bone blocks; when the surgeon uses the second osteotomy angle to perform osteotomy, the second positioning portion 132 is used to position the two bone blocks.

[0063] Furthermore, the two osteotomy angles can be customized to provide two angles for selection according to the patient's physiological parameters, for example, the osteotomy angle can be 40°, 45°, 60° or 90°. During surgery, the appropriate osteotomy angle can be selected based on factors such as the surgeon's incision exposure path and the convenience of installing the guide plate. When the osteotomy angle is selected, the center lines of the two guide grooves 11 corresponding to the osteotomy angle coincide with the central axis of the bone.

[0064] In a specific implementation, the plate body 10 is a polygonal structure, and the plurality of positioning portions 13 are located on different sides of the plate body 10. This arrangement can make the size of the plate body 10 smaller and the structure more compact.

[0065] like Figure 2 and Figure 3As shown, the plate body 10 is a quadrilateral structure, the guide groove 11 is arranged at a corner of the plate body 10, and the first positioning portion 131 and the second positioning portion 132 are respectively arranged at two adjacent edges of the plate body 10. Among them, one edge of the plate body 10 communicated with by the first positioning portion 131 and one edge of the plate body 10 communicated with by the second positioning portion 132 are the same edge.

[0066] The plate body 10 has a mark, which is used to determine the corresponding relationship between the positioning portion 13, the guide groove 11 and the corresponding osteotomy angle, so that the positioning portion 13 can be matched with the corresponding osteotomy angle quickly and accurately to avoid misoperation.

[0067] In a specific implementation, the mark may include a mark indicating the positioning portion 13, a mark indicating the guide groove 11, and / or a mark indicating the osteotomy angle. Accordingly, the mark may be set in the positioning portion 13, at the guide groove 11, and / or at the osteotomy angle. Specifically, as Figure 2 and Figure 3 As shown, the mark is set in the third groove surface 1312 of the positioning portion 13, and can also be set on the first side surface 14 or the second side surface 16. Correspondingly, the mark can be set at the extended end (the end opposite to the intersection end) of the guide groove 11; it can be set in the osteotomy angle between the two guide grooves 11. In addition, the mark can be in various forms, such as digital marks such as "1", "2", etc., and the corresponding osteotomy angle value can also be marked, such as "45", "60", etc.

[0068] like Figure 2 and Figure 3 As shown, the plate body 10 is also penetrated with fixing holes, and at least one fixing hole is arranged near the intersection of the guide grooves 11. The fixing holes can allow fixing components to pass through and fix the surgical guide plate 1 to the bone block, thereby preventing the surgeon from pressing the guide plate on the bone surface with his hands, thereby facilitating the operation during surgery and reducing the obstruction of the surgical field; in addition, arranging the fixing holes near the intersection of the guide grooves 11 can make the arrangement and positioning of the intersection more secure.

[0069] In a specific implementation, the fixing hole is used to allow the Kirschner wire to pass through so as to fix the surgical guide 1 to the surface of the bone. Preferably, the fixing hole is a through circular hole. A surgical guide 1 may have one fixing hole, or more than one fixing hole. Through the fixing of the fixing hole, the intersection of the guide groove 11 in the V-shaped groove coincides.

[0070] The embodiment of the present invention further provides a method for manufacturing a surgical guide 1, the manufacturing method is used to manufacture any of the above surgical guides 1, and the manufacturing method comprises the following steps:

[0071] S100: Obtain medical imaging data of the bone to be osteotomized. Perform imaging examination on the foot of the hallux valgus patient, such as computed tomography (CT) or X-ray.

[0072] S200: Obtain osteotomy information determined according to medical imaging data, the osteotomy information including the position of osteotomy, the osteotomy angle, and the relative position of the two bone fragments after osteotomy, wherein the relative position of the two bone fragments is related to the position of osteotomy and the osteotomy angle. Measure the hallux valgus angle and other angles according to the imaging data, simulate the position of osteotomy, the osteotomy angle, and the position and angle of fixation of the bone fragments after osteotomy on a computer, i.e., perform preoperative planning, and design at least one osteotomy angle and positioning portion 13.

[0073] S300: Obtain the osteotomy angle of the surgical guide 1 and the corresponding guide groove 11 determined according to the osteotomy position and the osteotomy angle, and the positioning portion 13 determined according to the relative positions of the two bone blocks after osteotomy. Figure 2 and Figure 3 As shown, the osteotomy position and the osteotomy angle planned before the operation are the first guide groove 111, the second guide groove 112 and the third guide groove 113, that is, the first guide groove 111 and the second guide groove 112 constitute the first osteotomy angle, and the first guide groove 111 and the third guide groove 113 constitute the second osteotomy angle, thereby determining the position of the guide groove 11 on the surgical guide 1. According to the position and angle of the bone block fixed after osteotomy by the first guide groove 111 and the second guide groove 112, the distance and angle of the bone block movement are measured, thereby determining the distance and angle between the first groove surface 1311 and the first side surface 14, and setting the depth of the first positioning portion 131 based on experience; similarly, according to the position and angle of the bone block fixed after osteotomy by the first guide groove 111 and the third guide groove 113, the two surfaces of the second positioning portion 132 are determined.

[0074] S400: Design the surgical guide 1 according to the guide groove 11 and the positioning portion 13. According to the design of S1, a rectangular parallelepiped model is established in the three-dimensional design software of the computer, and the positions of the guide groove 11 and the positioning portion 13 are placed on the rectangular parallelepiped model, and the fixing holes are placed, thereby generating a computer three-dimensional model of the surgical guide 1.

[0075] Through the above steps, the osteotomy position and osteotomy angle can be planned before the operation according to the patient's bone condition, and the osteotomy angle of the surgical guide 1 can be determined; at the same time, the relative positions of the two bone blocks are determined by the determined one or more osteotomy positions and osteotomy angles, and the positioning portion 13 of the surgical guide 1 is determined according to the relative position. The surgical guide 1 manufactured through the above steps can match the patient's bone condition, and while guiding the intraoperative operation, it can also improve the accuracy of the osteotomy correction surgery, reduce postoperative pain, and improve the therapeutic effect of the surgery.

[0076] Finally, the computer three-dimensional model of the surgical guide 1 designed in step S400 is imported into a 3D printer, and the surgical guide 1 is printed to form a physical object of the surgical guide 1 .

[0077] The embodiment of the present invention also provides a method for using the surgical guide 1, such as Figure 2 and Figure 3 Taking the surgical guide 1 shown as an example, the method of use includes:

[0078] During the operation, the surgical site of the patient's foot is incised and exposed according to conventional surgical operations, and part of the protruding bone is cut off longitudinally to expose the osteotomy surface 2. The surgical guide 1 is placed, and the first guide groove 111, the second guide groove 112 or the first guide groove 111 and the third guide groove 113 are estimated to guide the osteotomy according to the surgeon's incision exposure path and the convenience of installing the guide. The guide is fixed with a Kirschner wire through the fixing hole, and an oscillating saw or a milling cutter is used as an osteotomy tool to perform osteotomy through the osteotomy groove. After the osteotomy is completed, the Kirschner wire is removed, the surgical guide 1 is removed, and a selection is made between the first positioning portion 131 and the second positioning portion 132 according to the guide groove 11 selected for the osteotomy. For example, if the first guide groove 111 and the second guide groove 112 are used to guide the osteotomy, the first positioning portion 131 is selected, and the third groove surface 1312 is placed on the bone block cutting surface 212 formed by the osteotomy, and the surgical guide 1 is pushed so that the first groove surface 1311 is closely fitted to the first bone block surface 211 of the first bone block 21, and the cut second bone block 22 is placed on the first side surface 14 so that the second bone block 22 is closely fitted to the surface, and the bone block is fixed with an internal fixator according to the placement position and angle of the bone block at this time, and the guide is removed and the surgical incision is closed.

[0079] In specific implementation, hallux valgus osteotomy correction also includes: Figure 4 The form shown is scarfosteotomy, that is, a Z-shaped groove is formed so that the bone is divided into a first bone block 21 and a second bone block 22, and the second bone block 22 is pushed relative to the first bone block 21 for correction. When used in this operation, the surgical guide 1 can also provide more osteotomy angles to meet the requirements of the two osteotomy angles in the Z-shaped groove.

[0080] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A surgical guide, characterized in that: The surgical guide comprises: A plate body, wherein at least two guide grooves are provided on the plate body, the guide grooves penetrate the plate body, the guide grooves are interconnected and arranged at an angle, and the angle is an osteotomy angle; A positioning portion is arranged at the edge of the plate body and is used to locate the relative position between two bone blocks after osteotomy.

2. The surgical guide according to claim 1, characterized in that: The positioning portion includes a first positioning surface and a second positioning surface, wherein the first positioning surface and the second positioning surface are respectively used to fit with two bone blocks so that the relative position between the two bone blocks after osteotomy is determined.

3. The surgical guide according to claim 2, characterized in that: The first positioning surface is arranged in parallel with the second positioning surface or has a preset angle, and there is a preset distance between the first positioning surface and the second positioning surface.

4. The surgical guide according to claim 3, characterized in that: A groove is provided at the edge of the plate body; one of the first positioning surface and the second positioning surface is a groove surface in the groove, and the other is a surface on the plate body adjacent to the groove, and the surface has a preset interval and the same direction as the groove surface.

5. The surgical guide according to claim 4, characterized in that: The groove extends along the edge of the plate body and forms a long strip-shaped quadrilateral structure; One of the first positioning surface and the second positioning surface is a side surface of the plate body corresponding to the long side of the groove, and the other is a groove surface in the groove facing the same direction as the side surface.

6. The surgical guide according to any one of claims 1 to 5, characterized in that: The surgical guide plate comprises at least three guide grooves, which intersect and form at least two osteotomy angles. The plate body is provided with at least two positioning parts, and the osteotomy angles correspond to the positioning parts one by one.

7. The surgical guide according to claim 6, characterized in that: At least three of the guide grooves have a reference groove, and any one of the remaining guide grooves forms the osteotomy angle with the reference groove.

8. The surgical guide according to claim 6, characterized in that: The plate body is a polygonal structure, and the plurality of positioning portions are located on different sides of the plate body.

9. The surgical guide according to claim 6, characterized in that: The plate body is provided with a mark, and the mark is used to determine the corresponding relationship between the positioning portion, the guide groove and the corresponding osteotomy angle.

10. A method for manufacturing a surgical guide, characterized in that: The manufacturing method is used to manufacture a surgical guide as claimed in any one of claims 1 to 9, and the manufacturing method comprises: Acquire medical imaging data of the bone to be osteotomized; Acquire osteotomy information determined according to the medical image data, the osteotomy information including the position of the osteotomy, the osteotomy angle, and the relative position of the two bone blocks after the osteotomy, wherein the relative position of the two bone blocks is related to the position of the osteotomy and the osteotomy angle; Obtaining the osteotomy angle and the corresponding guide groove of the surgical guide determined according to the osteotomy position and the osteotomy angle, and the positioning portion determined according to the relative positions of the two bone blocks after the osteotomy; The surgical guide is designed according to the guide groove and the positioning portion.

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