Osteotomy orthopedic guider

Abstract

The utility model relates to an osteotomy orthopedic guider which comprises a fixed aiming piece, a movable aiming piece, a gear, a guide rod and a distraction piece, and the fixed aiming piece comprises a fixed aiming block and an arc-shaped rack arranged on one side of the top of the fixed aiming block; the movable aiming piece comprises a movable aiming block and an arc-shaped groove formed in the upper end of the movable aiming block and used for assembling the arc-shaped rack. The gear is mounted on the movable aiming block and is meshed with the arc-shaped rack; the guide rod and the distraction piece are detachably assembled on the fixed aiming block and the movable aiming block; when the gear is rotated, the movable aiming block can move along the arc-shaped rack so as to adjust the included angle between the fixed aiming block and the movable aiming block. The osteotomy orthopedic device is simple in overall structure and convenient to operate, the accuracy of the osteotomy orthopedic angle can be guaranteed, meanwhile, the exposed area of the osteotomy position in the operation process is reduced, and operation wounds are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of orthopedic surgical operation instruments, and in particular relates to an osteotomy orthopedic guide. Background Art

[0002] Limb deformity refers to deformity occurring in bones, joints or soft tissues, such as cubitus valgus / ellipse, knee valgus / ellipse, equinus foot, unequal length of limbs, etc. These deformities are divided into congenital dysplasia type and acquired secondary type, and the acquired secondary type is common, and is mostly secondary to trauma, infection, degenerative lesions, etc., among which post-traumatic deformity is the most complex and serious. In addition, single-plane deformity is relatively rare, and it is often not limited to a single plane (coronal plane), but a complex three-dimensional deformity (coronal plane, sagittal plane, axial plane). Limb deformity brings not only the difference in appearance from normal people to patients, but also accompanied by limb dysfunction. Long-term deformity can also cause psychological barriers to patients, leading to a serious decline in the quality of life of patients.

[0003] Clinically, orthopedic doctors treat limb deformities through osteotomy, which is osteotomy correction. According to the location, osteotomy is divided into supracondylar osteotomy of the humerus, distal femoral osteotomy, proximal tibia osteotomy, calcaneal osteotomy, etc. According to the specific surgical procedure, osteotomy is divided into closed osteotomy, open osteotomy, dome osteotomy, etc., among which the most common is closed / open osteotomy.

[0004] Specifically, closed osteotomy means that the orthopedic doctor, based on the preoperative deformity measurement, uses Kirschner wire positioning, and uses a bone knife and an oscillating saw to cut off a wedge-shaped bone block with a pre-designed angle (corresponding to the patient's deformity degree) at the deformity position, closes the osteotomy area, and closes the wound after fixation with a steel plate and screws. Compared with closed osteotomy, open osteotomy has basically the same preoperative measurement and Kirschner wire positioning steps, except that the bone knife and oscillating saw only cut the bone along the designed direction and position, and the orthopedic doctor needs to open the deformity position into a wedge-shaped area with a specific angle (corresponding to the patient's deformity degree).

[0005] However, for specific correction plans, orthopedic surgeons need to customize them according to the specific location and degree of the deformity before surgery. Therefore, precise and minimally invasive correction poses a severe challenge to surgical instruments. The traditional osteotomy method is blindly performed after intraoperative fluoroscopy, that is, parallel Kirschner wires are inserted, and then an oscillating saw is used to perform osteotomy close to the Kirschner wires.

[0006] First, the traditional needle placement method is not assisted by tools and is prone to deviation. After insertion, it also requires repeated fluoroscopy. Once deviation occurs, it must be corrected, resulting in low surgical efficiency. Secondly, the degree of osteotomy must be precise, but the traditional osteotomy method is difficult to accurately grasp. Open osteotomy relies on a distractor to open the osteotomy area, and closed osteotomy relies on a simple protractor and ruler to determine the osteotomy area. Then, the correction effect is roughly estimated by the intraoperative force line rod, which is easy to cause postoperative correction degree deviation. Too large will cause new deformities in patients, and too small will cause residual deformities. Next, when the osteotomy is performed, due to the limitations of traditional methods, the osteotomy position is too exposed, causing greater trauma to the patient. Finally, there are also problems in maintaining the osteotomy area after osteotomy, especially after open osteotomy, a wedge-shaped area with a specific angle needs to be opened. The distractors commonly used in clinical practice are not accurate enough, which often leads to the distraction angle not matching the preoperative planned degree. At the same time, the distractor also affects the application of steel plates and screws, making the entire surgical process difficult. Utility Model Content

[0007] The utility model aims to provide an osteotomy correction guide to solve the problem of great difficulty in osteotomy surgery.

[0008] A kind of osteotomy correction guide of the utility model is realized in this way:

[0009] An osteotomy orthopedic guide, comprising

[0010] A fixed aiming member, comprising a fixed aiming block and an arc-shaped rack arranged on one side of the top of the fixed aiming block;

[0011] A movable aiming member, comprising a movable aiming block, and an arcuate groove disposed at the upper end of the movable aiming block and used for assembling the arcuate rack;

[0012] a gear mounted on the movable aiming block and meshing with the arc-shaped rack;

[0013] A guide rod and a spreading piece, both of which are detachably mounted on the fixed aiming block and the movable aiming block;

[0014] By rotating the gear, the movable aiming block can move along the arc-shaped rack to adjust the angle between the fixed aiming block and the movable aiming block.

[0015] Furthermore, the arc-shaped rack is an arc-shaped structure protruding upward, and a tooth surface is provided on its upper arc surface, and the gear is assembled in the movable aiming block and meshes with the tooth surface;

[0016] A knob connected with the gear is arranged outside the movable aiming block.

[0017] Furthermore, the fixed aiming block and the movable aiming block are respectively provided with aiming holes;

[0018] The fixed aiming block and the movable aiming block are respectively provided with temporary positioning holes;

[0019] The guide rod is detachably installed in the aiming hole and the temporary positioning hole.

[0020] Furthermore, the aiming holes are arranged in pairs, and the two aiming holes on the same aiming block are arranged in parallel and connected by a connecting groove;

[0021] The expansion piece is detachably installed in two communicating aiming holes.

[0022] Furthermore, the axis of the aiming hole intersects with the axis corresponding to the arc surface of the arc-shaped rack.

[0023] Furthermore, locking screws cooperating with the corresponding aiming holes and temporary positioning holes are installed on the fixed aiming block and the movable aiming block.

[0024] Furthermore, at least one side surface of the arc-shaped rack is provided with an angle scale line;

[0025] The guide rod and the expansion piece are marked with depth scale lines.

[0026] Furthermore, an anti-drop screw is installed at one end of the arc-shaped rack away from the fixed aiming block.

[0027] Furthermore, a core hole is provided in the guide rod in its axial direction;

[0028] The bottom of the guide rod is provided with an annular tooth surface.

[0029] Furthermore, a blade is provided at the lower end of the opening piece;

[0030] The upper end of the expansion piece is provided with a bending portion.

[0031] After adopting the above technical solution, the utility model has the following beneficial effects:

[0032] (1) The guide device of the utility model has a simple overall structure and is easy to operate. It is used in osteotomy surgery with little trauma and can effectively reduce the difficulty of the surgery, thus simplifying the complex surgical process.

[0033] (2) The guide of the utility model realizes the adjustment of the angle between the fixed aiming member and the movable aiming member through the cooperation of the gear and the arc-shaped rack, so as to ensure the accuracy of the osteotomy correction angle and avoid secondary injury to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1It is a structural diagram of an osteotomy orthopedic guide (assembly guide rod) of a preferred embodiment of the utility model;

[0036] Figure 2 It is a structural diagram of an osteotomy orthopedic guide (assembly guide rod) of a preferred embodiment of the utility model;

[0037] Figure 3 It is a structural diagram of an osteotomy orthopedic guide (with a distraction piece installed) of a preferred embodiment of the utility model;

[0038] Figure 4 It is a structural diagram of an osteotomy orthopedic guide (with a distraction piece installed) of a preferred embodiment of the utility model;

[0039] Figure 5 It is a structural diagram of a fixed aiming member of an osteotomy orthopedic guide of a preferred embodiment of the utility model;

[0040] Figure 6 It is a structural diagram of a movable aiming member of an osteotomy orthopedic guide of a preferred embodiment of the utility model;

[0041] Figure 7 It is a structural diagram of a movable aiming member of an osteotomy orthopedic guide of a preferred embodiment of the utility model;

[0042] Figure 8 This is a structural diagram of the assembly of the knob and gear of the osteotomy orthopedic guide of the preferred embodiment of the utility model;

[0043] Fig. 9 This is a structural diagram of a guide rod of an osteotomy orthopedic guide of a preferred embodiment of the utility model;

[0044] Fig.10 It is a structural diagram of the expansion piece of the osteotomy orthopedic guide of the preferred embodiment of the utility model;

[0045] In the figure: fixed aiming member 1, fixed aiming block 1-1, upper fixed block 1-1-1, lower fixed block 1-1-2, connecting plate Ⅰ1-1-3, arc-shaped rack 1-2, tooth surface 1-3, aiming hole Ⅰ1-4, temporary positioning hole Ⅰ1-5, connecting groove Ⅰ1-6, locking screw hole Ⅰ1-7, movable aiming member 2, movable aiming block 2-1, upper movable block 2-1-1, lower movable block 2-1-2, connecting plate Ⅱ2-1-3, arc-shaped groove 2-2, mounting cavity 2-3, annular groove 2-4, protrusion Ⅰ2-5, aiming hole Ⅱ2-6, protrusion Ⅱ2-7, temporary positioning hole Ⅱ2-8, connecting groove Ⅱ2-9, locking screw hole Ⅱ2-10, gear 3, guide rod 4, core hole 4-1, annular tooth surface 4-2, opening piece 5, blade 5-1, bending portion 5-2, knob 6, ring sleeve 7, locking screw 8, anti-slip screw 9. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0048] like Figure 1-10 As shown, an osteotomy orthopedic guide comprises a fixed aiming member 1, a movable aiming member 2, a gear 3, a guide rod 4 and a spreader 5, wherein the fixed aiming member 1 comprises a fixed aiming block 1-1 and an arcuate rack 1-2 arranged on one side of the top of the fixed aiming block 1-1; the movable aiming member 2 comprises a movable aiming block 2-1 and an arcuate groove 2-2 arranged on the upper end of the movable aiming block 2-1 and used for assembling the arcuate rack 1-2; the gear 3 is mounted on the movable aiming block 2-1 and meshed with the arcuate rack 1-2; the guide rod 4 and the spreader 5 are both detachably assembled on the fixed aiming block 1-1 and the movable aiming block 2-1; by rotating the gear 3, the movable aiming block 2-1 can move along the arcuate rack 1-2 to adjust the angle between the fixed aiming block 1-1 and the movable aiming block 2-1.

[0049] Specifically, the fixed aiming block 1-1 includes an upper fixed block 1-1-1, a lower fixed block 1-1-2, and a connecting plate Ⅰ1-1-3 connected therebetween; the movable aiming block 2-1 includes an upper movable block 2-1-1, a lower movable block 2-1-2, and a connecting plate Ⅱ2-1-3 connected therebetween.

[0050] The arc-shaped rack 1-2 is integrally arranged on the side of the upper fixed block 1-1-1 facing the upper movable block 2-1-1, and the arc-shaped groove 2-2 is arranged on the upper movable block 2-1-1 and opens forward. The cross-section of the arc-shaped groove 2-2 is a "convex" structure, that is, its inner groove width is greater than its outer groove width. The arc-shaped rack 1-2 is assembled in the inner groove of the arc-shaped groove 2-2. Through the design of the outer groove, it can be prevented from falling out from the open side of the arc-shaped groove 2-2.

[0051] The fixed aiming block 1-1 and the movable aiming block 2-1 are configured as a structure with a connecting plate in the middle rather than a whole block structure, so that the surgical field can be fully exposed and the operation can be facilitated.

[0052] Preferably, connecting plate Ⅰ1-1-3 and connecting plate Ⅱ2-1-3 are provided with weight-reducing holes, which can effectively reduce the overall weight of the guide and make it more convenient to use.

[0053] The fixed aiming block 1-1 and the movable aiming block 2-1 are arranged side by side, and the arc-shaped rack 1-2 is assembled in the arc-shaped groove 2-2. When the gear 3 is rotated, the movable aiming block 2-1 will move along the arc-shaped rack 1-2 through the meshing of the gear 3 and the arc-shaped rack 1-2 to increase or decrease the angle between the movable aiming block 2-1 and the fixed aiming block 1-1. In order to realize the above-mentioned angle adjustment function, the arc-shaped rack 1-2 is an upwardly protruding arc structure, and a tooth surface 1-3 is provided on its upper arc surface. The gear 3 is assembled in the movable aiming block 2-1 and meshes with the tooth surface 1-3.

[0054] Specifically, the upper movable block 2-1-1 is provided with a mounting cavity 2-3 located above the arc groove 2-2, the bottom of the mounting cavity 2-3 is connected to the arc groove 2-2, the gear 3 is arranged in the mounting cavity 2-3, and meshes with the arc rack 1-2 located in the arc groove 2-2.

[0055] In order to facilitate the rotation of the gear 3, a knob 6 connected to the gear 3 is provided on the outside of the movable aiming block 2-1.

[0056] Specifically, the knob 6 is located on the front side of the upper movable block 2-1-1, and an annular groove 2-4 connected to the mounting cavity 2-3 is provided on the upper movable block 2-1-1. A ring sleeve 7 is provided in the annular groove 2-4. The core shaft of the knob 6 passes through the ring sleeve 7 and is connected to the gear 3 located in the mounting cavity 2-3. The gear 3 is driven to rotate by rotating the knob 6.

[0057] In order to install the guide rod 4 so as to facilitate the insertion of the Kirschner wire during the osteotomy and correction surgery, aiming holes are respectively provided on the fixed aiming block 1-1 and the movable aiming block 2-1.

[0058] In order to facilitate temporary fixation of the osteotomy area, temporary positioning holes are respectively provided on the fixed aiming block 1 - 1 and the movable aiming block 2 - 1 .

[0059] The guide rod 4 is detachably installed in the aiming hole and the temporary positioning hole.

[0060] Specifically, corresponding aiming holes Ⅰ1-4 are provided on the fixed aiming block 1-1, the upper fixed block 1-1-1 and the lower fixed block 1-1-2, and the guide rod 4 passes through two upper and lower opposite aiming holes Ⅰ1-4 during installation.

[0061] Similarly, corresponding temporary positioning holes Ⅰ1-5 are provided on the upper fixing block 1-1-1 and the lower fixing block 1-1-2, and the guide rod 4 passes through two upper and lower opposite temporary positioning holes Ⅰ1-5 during installation.

[0062] On the movable aiming block 2-1, the upper movable block 2-1-1 is provided with protrusions Ⅰ2-5 located on both sides of the arc groove 2-2 and corresponding to each other up and down, and the two protrusions Ⅰ2-5 and the lower movable block 2-1-2 are provided with corresponding aiming holes Ⅱ2-6. When the guide rod 4 is installed, it passes through the three corresponding aiming holes Ⅱ2-6 up and down.

[0063] The upper movable block 2-1-1 is also provided with corresponding protrusions II2-7 located on both sides of the arc groove 2-2. The two protrusions II2-7 are provided with corresponding temporary positioning holes II2-8. When installing, the guide rod 4 passes through the two corresponding temporary positioning holes II2-8.

[0064] In this embodiment, a temporary positioning hole for installing a guide rod 4 is provided on both the fixed aiming block 1 - 1 and the movable aiming block 2 - 1 .

[0065] During open osteotomy surgery, the distraction piece 5 is needed to distract the osteotomy position to a desired angle to facilitate bone grafting. In order to directly install the distraction piece 5 in the aiming hole, the aiming holes are arranged in pairs. The two aiming holes on the same aiming block are arranged in parallel and connected by a connecting groove.

[0066] The expansion piece 5 is detachably installed in the two communicating aiming holes.

[0067] In this embodiment, a pair of aiming holes Ⅰ1-4 are provided on the upper fixed block 1-1-1 of the fixed aiming block 1-1, and the two aiming holes Ⅰ are connected through a connecting groove Ⅰ1-6 to form an aiming hole through groove Ⅰ, and the aiming hole through groove Ⅰ on the lower fixed block 1-1-2 is correspondingly provided to the upper fixed block 1-1-1, and the expansion piece 5 passes through the corresponding aiming hole through groove Ⅰ on the upper fixed block 1-1-1 and the lower fixed block 1-1-2 in sequence when being installed.

[0068] In the movable aiming block 2-1, a pair of aiming holes II 2-6 are set on the lower movable block 2-1-2, and the two aiming holes II 2-6 are connected through a connecting groove II 2-9 to form an aiming hole through groove II. The aiming hole through groove II on the two protrusions I 2-5 of the upper movable block 2-1-1 is set corresponding to the lower movable block 2-1-2. When the expansion piece 5 is installed, it passes through the two protrusions I 2-5 and the corresponding aiming hole through groove II on the lower movable block 2-1-2 in sequence.

[0069] The guide rod 4 and the expansion piece 5 are installed in the corresponding aiming holes. A Kirschner wire is installed in the guide rod 4. When the movable aiming block 2-1 moves along the arc-shaped rack 1-2, in order to adjust the angle between the Kirschner wires on the two aiming blocks (i.e., the fixed aiming block 1-1 and the movable aiming block 2-1) or the angle between the expansion pieces 5, the axis of the aiming hole intersects with the axis corresponding to the arc surface of the arc-shaped rack 1-2.

[0070] When the guide rod 4 and the spreading piece 5 are installed on the corresponding fixed aiming block 1-1 or the movable aiming block 2-1, they need to be locked, so the fixed aiming block 1-1 and the movable aiming block 2-1 are installed with locking screws 8 that match the corresponding aiming holes and temporary positioning holes.

[0071] In this embodiment, the locking screws 8 on the fixed aiming block 1-1 are all located on the upper fixed block 1-1-1, and the locking screws 8 on the movable aiming block 2-1 are all located on the upper movable block 2-1-1.

[0072] Specifically, the upper fixing block 1-1-1 is provided with a locking screw hole Ⅰ1-7 opposite to the aiming hole Ⅰ1-4 and the temporary positioning hole Ⅰ1-5, and the locking screw 8 is assembled in the locking screw hole Ⅰ1-7. After tightening, the inner end thereof abuts against the outer wall of the corresponding guide rod 4 and the expansion piece 5, thereby achieving the purpose of fixing the guide rod 4 and the expansion piece 5.

[0073] The upper movable block 2-1-1 is also provided with a locking screw hole II2-10 that cooperates with the aiming hole II2-6 and the temporary positioning hole II2-8, and its locking method is the same as that on the fixed aiming block 1-1.

[0074] In order to clearly see the opening angle of the guide, at least one side surface of the arc-shaped rack 1-2 is provided with an angle scale line (not shown in the figure).

[0075] In different osteotomy and correction surgeries, the insertion depth requirements of the guide rod 4 or the distraction piece 5 are different. In order to clearly see the insertion depth of the guide rod 4 and the distraction piece 5, the guide rod 4 and the distraction piece 5 are marked with depth scale lines (not shown in the figure).

[0076] In order to prevent the arc-shaped rack 1-2 from falling out of the arc-shaped groove 2-2, an anti-falling screw 9 is installed at one end of the arc-shaped rack 1-2 away from the fixed aiming block 1-1.

[0077] Specifically, the diameter of the anti-slip screw 9 is greater than the depth of the inner groove of the arc groove 2-2, which can prevent the movable aiming block 2-1 from slipping off from the arc rack 1-2.

[0078] During the operation, in order to insert the Kirschner wire through the guide rod 4, a core hole 4-1 located in the axial direction of the guide rod 4 is provided inside.

[0079] When the guide is placed at the surgical site, the guide rod 4 is prevented from moving randomly to ensure the accuracy of the Kirschner wire insertion. An annular tooth surface 4 - 2 is provided at the bottom of the guide rod 4 .

[0080] In order to cut the osteotomy position of the distraction piece 5 , a blade portion 5 - 1 is provided at the lower end of the distraction piece 5 .

[0081] Both sides of the lower end of the expansion piece 5 are inclined inward to form a cutting edge portion 5-1.

[0082] The upper end of the expansion piece 5 is provided with a bending portion 5-2, which can facilitate holding and adjusting the depth of insertion into the bone.

[0083] During open osteotomy, the guide rod 4 is inserted into the temporary positioning holes of the fixed aiming block 1-1 and the movable aiming block 2-1, and then the bone is cut according to the preoperatively planned osteotomy position and direction. The distraction piece 5 is respectively inserted into the aiming hole through grooves of the fixed aiming block 1-1 and the movable aiming block 2-1, and after adjusting the insertion depth as needed, the distraction piece 5 is fixed with the locking screw 8. At this time, the guide is inserted into the osteotomy position, that is, the blades 5-1 of the two distraction pieces 5 are inserted into the osteotomy position, and then the knob 6 is turned to drive the gear 3 to increase the angle between the two distraction pieces 5, that is, the osteotomy position is distracted to the required angle. At this time, the Kirschner wire is driven into the guide rod 4 in the temporary positioning hole to temporarily fix the guide at the osteotomy position, and then the plate screw can be installed after bone grafting at the osteotomy position, and the guide can be removed.

[0084] During the closed osteotomy operation, the guide rod 4 is inserted into the temporary positioning holes of the fixed aiming block 1-1 and the movable aiming block 2-1. According to the osteotomy position and direction planned before the operation, the angle between the fixed aiming block 1-1 and the movable aiming block 2-1 is adjusted, and the Kirschner wire is driven along the guide rod 4 in the temporary positioning hole to temporarily fix the guide at the osteotomy position. Then, the guide rod 4 is installed in the aiming hole, and the guide rod 4 is adjusted to a suitable depth and fixed with a locking screw 8. Then, the Kirschner wire is driven along the guide rod 4 in the aiming hole, and a wedge-shaped bone block that realizes the designed angle is cut off at the osteotomy position. Then, the knob 6 is turned to reduce the angle between the fixed aiming block 1-1 and the movable aiming block 2-1, and the osteotomy position is closed. After the plate screw is installed, the guide can be removed.

[0085] The osteotomy correction guide of the utility model has a simple overall structure and is easy to use. It can not only ensure the accuracy of the osteotomy correction angle, reduce surgical trauma, reduce the difficulty of osteotomy surgery, and simplify the complex surgical process, but also can be applied to different types of osteotomy correction surgeries and has good versatility.

[0086] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An osteotomy orthopedic guide, characterized in that: include A fixed aiming member (1), comprising a fixed aiming block (1-1), and an arc-shaped rack (1-2) arranged on one side of the top of the fixed aiming block (1-1); A movable aiming member (2), comprising a movable aiming block (2-1), and an arcuate groove (2-2) arranged at the upper end of the movable aiming block (2-1) and used for assembling the arcuate rack (1-2); a gear (3) mounted on the movable aiming block (2-1) and meshing with the arc-shaped rack (1-2); A guide rod (4) and a spreading piece (5), both of which are detachably mounted on the fixed aiming block (1-1) and the movable aiming block (2-1); By rotating the gear (3), the movable aiming block (2-1) can move along the arc-shaped rack (1-2) to adjust the angle between the fixed aiming block (1-1) and the movable aiming block (2-1).

2. The osteotomy orthopedic guide according to claim 1, characterized in that: The arc-shaped rack (1-2) is an arc-shaped structure protruding upward, and a tooth surface (1-3) is provided on its upper arc surface; the gear (3) is assembled in the movable aiming block (2-1) and meshes with the tooth surface (1-3); The outside of the movable aiming block (2-1) is provided with a knob (6) connected to the gear (3).

3. The osteotomy orthopedic guide according to claim 1, characterized in that: The fixed aiming block (1-1) and the movable aiming block (2-1) are respectively provided with aiming holes; Temporary positioning holes are respectively provided on the fixed aiming block (1-1) and the movable aiming block (2-1); The guide rod (4) is detachably mounted in the aiming hole and the temporary positioning hole.

4. The osteotomy correction guide according to claim 3, characterized in that: The aiming holes are arranged in pairs, and the two aiming holes on the same aiming block are arranged in parallel and connected by a connecting groove; The expansion piece (5) is detachably mounted in two communicating aiming holes.

5. The osteotomy correction guide according to claim 3, characterized in that: The axis of the aiming hole intersects with the axis corresponding to the arc surface of the arc-shaped rack (1-2).

6. The osteotomy correction guide according to claim 3, characterized in that: The fixed aiming block (1-1) and the movable aiming block (2-1) are provided with locking screws (8) which match the corresponding aiming holes and temporary positioning holes.

7. The osteotomy orthopedic guide according to claim 1, characterized in that: At least one side surface of the arc-shaped rack (1-2) is provided with an angle scale line; The guide rod (4) and the opening piece (5) are marked with depth scale lines.

8. The osteotomy orthopedic guide according to claim 1, characterized in that: An anti-drop screw (9) is installed at one end of the arc-shaped rack (1-2) away from the fixed aiming block (1-1).

9. The osteotomy orthopedic guide according to claim 1, characterized in that: The guide rod (4) is provided with a core hole (4-1) in its axial direction. The bottom of the guide rod (4) is provided with an annular tooth surface (4-2).

10. The osteotomy correction guide according to claim 1, characterized in that: The lower end of the opening piece (5) is provided with a blade portion (5-1); The upper end of the opening piece (5) is provided with a bending portion (5-2).

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