Osteotomy positioning and pressurizing system

Abstract

The invention relates to an osteotomy positioning and pressurizing system which comprises a positioning assembly and a pressurizing assembly, the positioning assembly comprises an osteotomy positioner, a near-end fixing piece and a far-end fixing piece, the osteotomy positioner comprises a positioning main body and an osteotomy guide plate, the positioning main body extends in the first direction, and the near-end fixing piece and the far-end fixing piece are arranged on the positioning main body; the position of the osteotomy guide plate relative to the positioning body in the first direction is adjustable, the pressurizing assembly comprises a near-end pressurizing part and a far-end pressurizing part, the positions of the near-end pressurizing part and the far-end pressurizing part in the first direction are adjustable, the osteotomy positioning and pressurizing system has a positioning mode and a pressurizing mode, in the positioning mode, the near end of the positioning body is connected with the near-end fixing part, and in the pressurizing mode, the far end of the positioning body is connected with the far-end fixing part. The far end of the positioning main body is connected with the far-end fixing piece; in the pressurizing mode, the near-end pressurizing piece is connected with the near-end fixing piece, and the far-end pressurizing piece is connected with the far-end fixing piece. According to the osteotomy positioning and pressurizing system, the thighbone can be accurately positioned, so that the accuracy of osteotomy and reduction of the thighbone is ensured, and the operation time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an osteotomy positioning and pressurization system. Background Art

[0002] Patients with Crowe III and IV types of DDH (developmental dysplasia of the hip) may experience femoral dislocation, and doctors face difficulties in repositioning the femur when correcting it. Current surgical treatments for DDH typically require femoral rotation and shortening osteotomy. Specifically, during surgery, the doctor first removes a segment of bone from the femur and then connects the two ends of the femur. However, this surgical method relies heavily on the doctor's experience, resulting in the inability to accurately position the two femoral joints after osteotomy. Furthermore, the surgery takes a long time, which is not conducive to the patient's postoperative recovery. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides an osteotomy positioning and pressurization system, which can accurately position the femur to ensure the accuracy of femoral osteotomy and reduction, thereby shortening the operation time.

[0005] The osteotomy positioning and pressurization system of an embodiment of the present invention includes: a positioning assembly, the positioning assembly includes an osteotomy locator, a proximal fixing member and a distal fixing member, the proximal fixing member is used to connect with the femoral epiphysis, the distal fixing member is used to connect with the femoral shaft, the osteotomy locator includes a positioning body and an osteotomy guide, the positioning body extends along a first direction, and the position of the osteotomy guide relative to the positioning body along the first direction is adjustable; a pressurization assembly, the pressurization assembly includes a proximal pressurization member and a distal pressurization member, the positions of the proximal pressurization member and the distal pressurization member along the first direction are adjustable; the osteotomy positioning and pressurization system has a positioning mode and a pressurization mode, in the positioning mode, the proximal end of the positioning body is connected to the proximal fixing member, and the distal end of the positioning body is connected to the distal fixing member; in the pressurization mode, the proximal pressurization member is connected to the proximal fixing member, and the distal pressurization member is connected to the distal fixing member.

[0006] According to an embodiment of the present invention, when positioning a femur for osteotomy, the osteotomy positioning and pressurization system can connect the proximal fixing member to the femoral metaphysis and the distal fixing member to the femoral shaft. The proximal end of the positioning body is then connected to the proximal fixing member, and the distal end of the positioning body is then connected to the distal fixing member, thereby completing the positioning of the positioning body. Because the osteotomy guide can move relative to the positioning body, the surgeon can adjust the osteotomy guide to the appropriate osteotomy position, allowing the surgeon to perform osteotomy on the femur with the assistance of the osteotomy guide, thereby improving the accuracy of femoral osteotomy.

[0007] After the femoral osteotomy is complete and the resected bone segments are removed, the osteotomy positioning and compression system can be switched to compression mode. This means the surgeon removes the osteotomy positioner, retaining the proximal and distal fixators. The surgeon then connects the proximal and distal compression components to the proximal and distal fixators, shortening the distance between the proximal and distal compression components to compressively reposition the severed femoral metaphysis and femoral shaft.

[0008] The osteotomy positioning and pressurization system of the embodiment of the present invention adopts the above-mentioned configuration, which allows the osteotomy locator and the pressurization assembly to share a set of proximal and distal fixings, so that the positioning references of the osteotomy locator and the pressurization assembly remain consistent, avoiding the problem of inaccurate positioning during femoral osteotomy reduction. This can achieve a better effect and a higher degree of fit after pressurization of the two osteotomy surfaces, and eliminate the need for repeated positioning, which can reduce surgical time. Therefore, the osteotomy positioning and pressurization system of the embodiment of the present invention can accurately position the femur to ensure the accuracy of femoral osteotomy and reduction, shorten the surgical time, and facilitate the patient's postoperative recovery.

[0009] In some embodiments, the positioning body includes a main body and two osteotomy positioning parts, the two osteotomy positioning parts are respectively arranged at both ends of the main body along the first direction, the osteotomy guide plate is installed on the main body, and its position relative to the main body along the first direction is adjustable, and a first positioning channel is provided on each of the osteotomy positioning parts. In the positioning mode, the proximal fixing member is passed through the first positioning channel on one of the osteotomy positioning parts, and the distal fixing member is passed through the first positioning channel on the other osteotomy positioning part.

[0010] In some embodiments, the main body is spaced apart from the osteotomy positioning portion along a second direction, and the second direction is orthogonal to the first direction and the axial direction of the first positioning channel. In the second direction, the distance between the center line of the main body along the first direction and the center line of the osteotomy positioning portion along the first direction is A, wherein 40mm≤A≤80mm.

[0011] In some embodiments, the osteotomy locator also includes a first locking component, which is provided on at least one of the two osteotomy positioning parts. The first locking component includes a first pressure block and a first adjusting component. The first pressure block is arranged on one side of the osteotomy positioning part along the radial direction of the first positioning channel, and the first positioning channel is formed between the first pressure block and the osteotomy positioning part. The first adjusting component is connected to the first pressure block and the osteotomy positioning part. The first adjusting component is used to adjust the position of the first pressure block along the radial direction of the first positioning channel.

[0012] In some embodiments, the first locking component also includes a first elastic member, which is arranged between the first pressure block and the osteotomy positioning portion, and the first elastic member has an elastic force that drives the first pressure block to move in a direction away from the osteotomy positioning portion; and / or, the first adjusting member is passed through the first pressure block and threadedly engaged with the osteotomy positioning portion; and / or, the first locking component also includes a first limit pin, which is passed through the osteotomy positioning portion, and the first limit pin can be abutted against the first adjusting member to limit the separation of the first adjusting member from the osteotomy positioning portion; and / or, each of the osteotomy positioning portions is provided with a plurality of the first positioning channels, and the plurality of the first positioning channels are arranged at intervals along the first direction.

[0013] In some embodiments, the main body is provided with a toothed surface, and the toothed surface extends along the first direction. The osteotomy guide includes a guide body and a locking button. The guide body is slidably mounted on the main body, and the locking button is provided with engaging teeth. The locking button is movable between a locking position and a release position. In the locking position, the engaging teeth are engaged with the toothed surface, and in the release position, the engaging teeth are spaced apart from the toothed surface; and / or, a scale is provided on the main body, and a scale alignment line and a scale observation window are provided on the osteotomy guide, and the scale observation window and the scale alignment line correspond to the scale; and / or, a strip guide hole is provided on the osteotomy guide, and the strip guide hole is used to pass the osteotomy knife.

[0014] In some embodiments, the pressure assembly further comprises a connecting rod, wherein the connecting rod is passed through the proximal pressure piece and the distal pressure piece along the first direction, one end of the connecting rod is in contact with one of the proximal pressure piece and the distal pressure piece, and the other end of the connecting rod is threadedly engaged with the other of the proximal pressure piece and the distal pressure piece, and the connecting rod is rotatable to adjust the relative position of the proximal pressure piece and the distal pressure piece; and / or, in the anterior-posterior direction of the human femur, the proximal fixing piece is located on the rear side of the distal fixing piece, and the distance between the center of the proximal fixing piece and the center of the distal fixing piece is 0 to 60 mm.

[0015] In some embodiments, a guide channel is provided in the proximal pressure piece, part of the distal pressure piece is arranged in the guide channel and is movable relative to the guide channel along the first direction, a threaded channel is provided in the distal pressure piece, a connecting channel is provided in the proximal pressure piece, the connecting rod is passed through the connecting channel, one end of the connecting rod abuts against the proximal pressure piece, and the other end of the connecting rod is threadedly engaged with the threaded channel; and / or, the pressure assembly also includes a pressure bone knife, which is installed on the proximal pressure piece and is used to cooperate with the greater trochanter of the femur.

[0016] In some embodiments, the proximal pressure member and the distal pressure member are both provided with a pressure positioning portion, and the pressure positioning portion is both provided with a second positioning channel. In the pressurization mode, the proximal fixing member is passed through the second positioning channel on the proximal pressure member, and the distal fixing member is passed through the second positioning channel on the distal pressure member.

[0017] In some embodiments, the pressurizing assembly also includes a second locking component, which is provided on at least one of the two pressurizing positioning parts, and the second locking component includes a second pressure block and a second adjusting member, the second pressure block is arranged on one side of the pressurizing positioning part along the radial direction of the second positioning channel, and the second positioning channel is formed between the second pressure block and the pressurizing positioning part, the second adjusting member is connected to the second pressure block and the pressurizing positioning part, and the second adjusting member is used to adjust the position of the second pressure block along the radial direction of the second positioning channel.

[0018] Compared with the prior art, the present invention has the following beneficial effects: When using the positioning osteotomy module, the positioning osteotomy module can be quickly installed directly on the component positioning main body nail channel. When using the femoral stem pressurization system to apply pressure, the positioning main body osteotomy module can be disassembled and the pressurization module can be directly installed. The advantage of this quick-disassembly is that the positioning base is unified and always converted on one coordinate base, achieving more accurate positioning and osteotomy, and reducing the problem of inaccurate osteotomy caused by secondary positioning conversion; and the proximal femoral pressurization component and the proximal positioning component are provided with eccentric adjustment. This adjustment is to avoid the interference problem between the positioning nail on the proximal positioning component and the femoral stem implantation when the femoral stem is implanted during surgery. This design solves the problem of both implanting the femoral stem and applying pressure, reducing operation time and making safe reduction easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the positioning assembly of the osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0020] Figure 2Schematic diagram of the positioning assembly of the osteotomy positioning and pressure system (excluding the osteotomy guide) according to an embodiment of the present invention.

[0021] Figure 3 Schematic diagram of the installation of the positioning assembly and femur of the osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0022] Figure 4 Schematic diagram of an osteotomy positioner of an osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0023] Figure 5 Schematic diagram of the positioning body of the osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0024] Figure 6 4 is a cross-sectional view of an osteotomy positioner of an osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0025] Figure 7 It is a cross-sectional view from another perspective of the osteotomy positioner of the osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0026] Figure 8 Schematic diagram of the installation of the positioning body and femur of the osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0027] Figure 9 Schematic diagram of an osteotomy guide plate of an osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0028] Figure 10 4 is a cross-sectional view of an osteotomy guide plate of an osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0029] Figure 11 1 is a schematic diagram of the osteotomy positioner of the osteotomy positioning and pressurization system according to an embodiment of the present invention from another perspective.

[0030] Figure 12 yes Figure 11 A magnified view of center.

[0031] Figure 13 Schematic diagram of the installation of the proximal fixing member, the distal fixing member and the femur of the osteotomy positioning and pressurization system according to an embodiment of the present invention.

[0032] Figure 14 Schematic diagram of the installation of the proximal fixing member, the proximal pressing member and the femoral metaphysis of the osteotomy positioning and pressing system according to an embodiment of the present invention.

[0033] Figure 15 This is a cross-sectional view of the installation of the distal fixing member, the distal pressurizing member, and the femoral shaft of the osteotomy positioning and pressurizing system according to an embodiment of the present invention.

[0034] Figure 164 is a cross-sectional view of a pressurizing component of an osteotomy positioning pressurizing system according to an embodiment of the present invention.

[0035] Figure 17 Schematic diagram of the installation of the pressurizing component and the femur of the osteotomy positioning pressurizing system according to an embodiment of the present invention.

[0036] Figure 18 Schematic diagram of the installation of the pressurizing component, femoral stem, and femur of the osteotomy positioning and pressurizing system according to an embodiment of the present invention.

[0037] Reference numerals: 1. Osteotomy Positioner; 11. Positioning Body; 111. Main Body; 1111. Toothed Surface; 1112. Scale; 112. Osteotomy Positioner; 1121. First Positioning Channel; 113. First Locking Component; 1131. First Pressure Block; 1132. First Adjusting Component; 1133. First Elastic Component; 1134. First Stop Pin; 12. Osteotomy Guide; 121. Guide Body; 122. Locking Button; 1221. Engaging Teeth; 123. Strip-Shaped Guide Hole; 124. Scale Alignment Line; 125. Scale Observation Window; 126. Return Spring; 2. Proximal fixation piece; 3. Distal fixing parts; 4. Pressurizing assembly; 41. Proximal pressurizing member; 411. Guide channel; 412. Connecting channel; 413. Pressurizing positioning portion; 414. Second positioning channel; 42. Distal pressurizing member; 421. Threaded channel; 43. Connecting rod; 44. Pressurizing osteotome; 45. Second locking member; 451. Second pressure block; 452. Second adjusting member; 453. Second elastic member; 5. Femoral stem; 100, femoral metaphysis; 200, femoral shaft. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0039] Please refer to the following Figures 1 to 18 An osteotomy positioning and compression system according to an embodiment of the present invention is described.

[0040] like Figures 1 to 18 As shown, the osteotomy positioning and pressurization system of the embodiment of the present invention includes: a positioning assembly and a pressurization assembly 4. The positioning assembly includes an osteotomy positioner 1, a proximal fixing member 2, and a distal fixing member 3. The proximal fixing member 2 is used to connect to the femoral epiphysis 100, and the distal fixing member 3 is used to connect to the femoral shaft 200.

[0041] It should be noted that if Figure 3 、 Figure 8 and Figure 13 As shown, the femoral metaphysis 100, i.e., the proximal femoral portion including the femoral neck and the greater trochanter, and the femoral shaft 200, i.e., the portion of the femur away from the femoral metaphysis 100. For example, the proximal fixing member 2 and the distal fixing member 3 can be fixing nails.

[0042] The osteotomy positioner 1 comprises a positioning body 11 and an osteotomy guide plate 12. The positioning body 11 is arranged along a first direction (eg Figure 3 The osteotomy guide plate 12 extends from the proximal end of the mid-femur to the distal end of the femur. The position of the osteotomy guide plate 12 relative to the positioning body 11 is adjustable along a first direction. The osteotomy guide plate 12 is used to guide the osteotome. The pressure assembly 4 includes a proximal pressure member 41 and a distal pressure member 42. The proximal pressure member 41 and the distal pressure member 42 are adjustable along the first direction.

[0043] The osteotomy positioning and pressurization system has a positioning mode and a pressurization mode. In the positioning mode, the proximal end of the positioning body 11 is connected to the proximal fixing member 2, and the distal end of the positioning body 11 is connected to the distal fixing member 3; in the pressurization mode, the proximal pressurization member 41 is connected to the proximal fixing member 2, and the distal pressurization member 42 is connected to the distal fixing member 3.

[0044] It is understood that the surgeon can use the positioning assembly to locate the femoral osteotomy position to improve the surgeon's accuracy during osteotomy. After the femoral osteotomy is completed, the osteotomy positioner 1 can be removed, and the proximal pressure member 41 can be installed on the proximal fixing member 2, and the distal fixing member 3 can be installed on the distal fixing member 3. By shortening the distance between the proximal pressure member 41 and the distal pressure member 42, the femoral shaft 200 and the femoral epiphysis can be pressurized and reduced.

[0045] According to the osteotomy positioning and pressurization system of an embodiment of the present invention, when positioning the femur for osteotomy is required, the proximal fixing member 2 can be connected to the femoral metaphysis 100, the distal fixing member 3 can be connected to the femoral shaft 200, and then the proximal end of the positioning body 11 can be connected to the proximal fixing member 2, and the distal end of the positioning body 11 can be connected to the distal fixing member 3, thereby completing the fixation of the positioning body 11. Because the osteotomy guide 12 can move relative to the positioning body 11, the surgeon can adjust the osteotomy guide 12 to the appropriate osteotomy position, thereby performing osteotomy on the femur with the assistance of the osteotomy guide 12, thereby improving the accuracy of femoral osteotomy.

[0046] After the femoral osteotomy is completed and the cut bone segment is removed, the osteotomy positioning and pressurization system can be switched to the pressurization mode. That is, the doctor can remove the osteotomy positioner 1, retain the proximal fixing member 2 and the distal fixing member 3, and then connect the proximal pressurization member 41 to the proximal fixing member 2, and the distal pressurization member 42 to the distal fixing member 3. In this way, the doctor can shorten the distance between the proximal pressurization member 41 and the distal pressurization member 42 to pressurize and reduce the cut femoral metaphysis 100 and femoral shaft 200.

[0047] The osteotomy positioning and pressurization system of the embodiment of the present invention adopts the above-mentioned setting, so that the osteotomy positioner 1 and the pressurization component 4 can share a set of proximal fixing parts 2 and distal fixing parts 3, so that the positioning references of the osteotomy positioner 1 and the pressurization component 4 are consistent, avoiding the problem of inaccurate positioning during femoral osteotomy reduction, thereby making the two osteotomy surfaces more effective after pressurization and fitting, with a higher degree of fit, and without the need for repeated positioning, which can reduce the operation time. Therefore, the osteotomy positioning and pressurization system of the embodiment of the present invention can accurately position the femur to ensure the accuracy of femoral osteotomy and reduction, shorten the operation time, and facilitate the patient's postoperative recovery.

[0048] Alternatively, as Figures 1 to 3 As shown, multiple proximal fixing members 2 and distal fixing members 3 can be provided, thereby improving the secure installation of the osteotomy guide 12 and the compression assembly 4. For example, two proximal fixing members 2 are provided, and the two proximal fixing members 2 are spaced apart along the first direction on the femoral metaphysis 100. Two distal fixing members 3 are provided, and the two distal fixing members 3 are spaced apart along the first direction on the femoral shaft 200.

[0049] In one example, the diameters of the proximal fixing member 2 and the distal fixing member 3 are between 3 mm and 5 mm, and the lengths of the proximal fixing member 2 and the distal fixing member 3 are between 60 mm and 150 mm. Thus, the proximal fixing member 2 and the distal fixing member 3 can meet the usage needs of most patients, which can not only ensure the structural strength of the proximal fixing member 2 and the distal fixing member 3, but also reduce the damage to the patient, which is beneficial to the patient's postoperative recovery.

[0050] Alternatively, as Figures 4 to 6As shown, the positioning body 11 includes a main body 111 and two osteotomy positioning parts 112. The two osteotomy positioning parts 112 are respectively arranged at both ends of the main body 111 along a first direction. The osteotomy guide plate 12 is mounted on the main body 111 and its position relative to the main body 111 along the first direction is adjustable. The osteotomy positioning parts 112 are each provided with a first positioning channel 1121. In the positioning mode, the proximal fixing member 2 is inserted into the first positioning channel 1121 on one osteotomy positioning part 112, and the distal fixing member 3 is inserted into the first positioning channel 1121 on the other osteotomy positioning part 112. It is understandable that when the doctor needs to perform osteotomy on the femur, the first positioning channels 1121 of the two osteotomy positioning parts 112 can be plugged and fixed to the proximal fixing member 2 and the distal fixing member 3 respectively. This can improve the convenience of fixing and disassembling the osteotomy positioner 1, facilitate the doctor's operation during surgery, and save surgical time.

[0051] In order to prevent the main body 111 from interfering with the doctor's line of sight, the main body 111 needs to be designed eccentrically. In other words, the main body 111 needs to be spaced apart from the femoral medullary cavity so that the doctor can observe the osteotomy of the femur during the operation.

[0052] Specifically, if Figure 8 As shown, the main body 111 is spaced apart from the osteotomy positioning portion 112 along a second direction, which is orthogonal to the first direction and the axis of the first positioning channel 1121. In the second direction (the anterior-posterior direction of the human body), the spacing between the centerline of the main body 111 along the first direction and the centerline of the osteotomy positioning portion 112 along the first direction is A, where 40 mm ≤ A ≤ 80 mm. It will be understood that the spacing A between the centerline of the main body 111 along the first direction and the centerline of the osteotomy positioning portion 112 along the first direction represents the eccentric distance between the main body 111 and the femoral medullary canal.

[0053] For example, spacing A can be 40 mm, 60 mm, 70 mm, or 80 mm. It is understood that spacing A can be selected based on the outer diameter of the patient's femur. When spacing A is within the parameter range of 40 mm to 80 mm, it facilitates intraoperative observation of the femoral osteotomy by the surgeon. This also meets the needs of most patients and broadens their application.

[0054] In some embodiments, as Figure 6 and Figure 7As shown, the osteotomy positioner 1 further includes a first locking component 113, which is disposed on at least one of the two osteotomy positioning portions 112. The first locking component 113 includes a first pressing block 1131 and a first adjusting member 1132. The first pressing block 1131 is arranged on one side of the osteotomy positioning portion 112 along the radial direction of the first positioning channel 1121, and the first positioning channel 1121 is formed between the first pressing block 1131 and the osteotomy positioning portion 112. The first adjusting member 1132 is connected to the first pressing block 1131 and the osteotomy positioning portion 112, and is used to adjust the position of the first pressing block 1131 along the radial direction (second direction) of the first positioning channel 1121. It can be understood that the first adjusting member 1132 can adjust the position of the first pressing block 1131 along the radial direction of the first positioning channel 1121 to clamp and release the proximal fixing member 2 or the distal fixing member 3, thereby avoiding the problem of the osteotomy positioning part 112 shaking relative to the proximal fixing member 2 and the distal fixing member 3 after installation, which is beneficial to improving the accuracy of osteotomy and is convenient for disassembly and assembly.

[0055] For example, there are two first locking components 113 , and the two first locking components 113 are respectively provided on the two osteotomy positioning portions 112 .

[0056] Taking the first locking component 113 locking and releasing the proximal fixing member 2 as an example, Figure 6 As shown, before the proximal fixing member 2 is inserted into the first positioning channel 1121, the first pressing block 1131 can be moved away from the first positioning channel 1121 by the first adjusting member 1132 to increase the aperture of the first positioning channel 1121, thereby ensuring that the proximal fixing member 2 can smoothly pass through the first positioning channel 1121. After the proximal fixing member 2 is installed in the first positioning channel 1121, the first pressing block 1131 can be moved toward the direction adjacent to the first positioning channel 1121 by the first adjusting member 1132 to compress and lock the proximal fixing member 2, thereby preventing the proximal fixing member 2 from shaking relative to the osteotomy positioner 1, which is beneficial to improving the accuracy of osteotomy positioning.

[0057] Alternatively, as Figure 6 As shown, the first locking component 113 further includes a first elastic member 1133, which is disposed between the first pressure block 1131 and the osteotomy positioning portion 112. The first elastic member 1133 has an elastic force that drives the first pressure block 1131 to move away from the osteotomy positioning portion 112. For example, the first elastic member 1133 may be a spring. Because the first elastic member 1133 has an elastic force that drives the first pressure block 1131 to move away from the osteotomy positioning portion 112, the stability of the movement of the first pressure block 1131 is ensured, thereby preventing the proximal fixing member 2 (distal fixing member 3) from becoming stuck during installation due to the first pressure block 1131 shaking relative to the osteotomy positioning portion 112.

[0058] In one example, if Figure 6 As shown, each first locking component 113 includes two first elastic members 1133, symmetrically arranged on either side of the first adjusting member 1132. This further prevents the proximal fixing member 2 (or distal fixing member 3) from jamming during installation due to the first pressing block 1131 swinging relative to the osteotomy positioning member 112. Specifically, the osteotomy positioning member 112 and the first pressing block 1131 are each provided with a relief groove, within which the first elastic members 1133 are mounted.

[0059] Alternatively, as Figure 6 As shown, the first adjustment member 1132 is threaded through the first pressure block 1131 and engages with the osteotomy positioning portion 112. It will be appreciated that the first adjustment member 1132 is a threaded member. The physician can use a wrench to tighten the first adjustment member 1132 to adjust the gap between the first pressure block 1131 and the osteotomy positioning portion 112 along the second direction, thereby tightening and releasing the proximal fixation member 2 (distal fixation member 3). By configuring the first locking member 113 with the aforementioned structure, the osteotomy positioning and pressurization system of the present invention simplifies its structure and transmission mechanism, reduces production costs of the first locking member 113, and enhances reliability.

[0060] Furthermore, if Figure 6 As shown, the first locking component 113 further includes a first limiting pin 1134, which is disposed through the osteotomy positioning portion 112. The first limiting pin 1134 can abut against the first adjusting member 1132 to limit the separation of the first adjusting member 1132 from the osteotomy positioning portion 112. It is understandable that when the first adjusting member 1132 is gradually loosened and moved to the limit position, it can be stopped by the first limiting pin 1134 to constrain the movement of the first adjusting member 1132, thereby avoiding the problem of separation of the first pressing block 1131 from the osteotomy positioning portion 112 due to the first adjusting member 1132 coming out, making the adjustment of the first locking component 1133 more convenient and more reliable.

[0061] Alternatively, as Figure 6 As shown, each osteotomy positioning portion 112 is provided with a plurality of first positioning channels 1121, which are spaced apart along the first direction. It is understood that different proximal fixing members 2 and distal fixing members 3 can be respectively installed in different first positioning channels 1121, thereby making the osteotomy positioner 1 more applicable.

[0062] In a specific example, if Figure 1 、 Figure 5 and Figure 6As shown, there are two proximal fixing members 2, and two first positioning channels 1121 are provided on the osteotomy fixing portion adjacent to the proximal fixing members 2, corresponding one-to-one with the two proximal fixing members 2. The spacing L1 between the two proximal fixing members 2 is between 20 mm and 50 mm. There are two distal fixing members 3, and two first positioning channels 1121 are provided on the osteotomy fixing portion adjacent to the distal fixing members 3, corresponding one-to-one with the two distal fixing members 3. The spacing L2 between the two distal fixing members 3 is between 20 mm and 50 mm.

[0063] like Figure 4 and Figure 9 As shown, the osteotomy guide plate 12 is provided with a strip guide hole 123, and the strip guide hole 123 is used to pass the osteotomy knife. It is understandable that the osteotomy guide plate 12 can slide relative to the positioning body 11. According to the patient's preoperative plan, the doctor can adjust the position of the osteotomy guide plate 12 to position the strip guide hole 123 to the position where the first knife is to be osteotomized. After the osteotomy position of the first knife is completed, the strip guide hole 123 can be positioned to the position where the second knife is to be osteotomized. Under the guiding effect of the osteotomy positioner 1, the problems of unnecessary osteotomy and insufficient osteotomy can be avoided, that is, excessive osteotomy will cause harm to the patient, and insufficient osteotomy will require extended operation time and repeated osteotomy.

[0064] Alternatively, as Figure 4 and Figure 9 As shown, a toothed surface 1111 is provided on the main body 111, and the toothed surface 1111 extends along a first direction. The osteotomy guide 12 includes a guide body 121 and a locking button 122. The guide body 121 is slidably mounted on the main body 111, and the locking button 122 is provided with meshing teeth 1221. The locking button 122 is movable between a locking position and a release position. In the locking position, the meshing teeth 1221 mesh with the toothed surface 1111, and in the release position, the meshing teeth 1221 are spaced apart from the toothed surface 1111.

[0065] It can be understood that under normal circumstances without operation, the meshing teeth 1221 engage with the toothed surface 1111. Under the limiting action of the toothed structure, the osteotomy guide 12 can be relatively fixed to the main body 111 to avoid the problem of the osteotomy guide 12 shaking relative to the main body 111, which is conducive to improving the accuracy of the positioning of the osteotomy guide 12.

[0066] Furthermore, if Figure 9 and Figure 10 As shown, the osteotomy guide 12 also includes a return spring 126, which is connected to the locking button 122. The return spring 126 has an elastic force that drives the meshing teeth 1221 to engage with the toothed surface 1111, thereby ensuring that when the locking button 122 is in the locked position, the meshing teeth 1221 can engage with the toothed surface 1111, thereby improving the reliability of the connection between the osteotomy guide 12 and the main body 111.

[0067] When the locking button 122 is released again, the locking button 122 returns to its original state under the action of the restoring force of the return spring 126, and the meshing teeth 1221 mesh with the toothed surface 1111 again, locking the osteotomy guide 12 and the main body 111.

[0068] In one example, if Figure 10 and Figure 12 As shown, the protruding teeth on the tooth-profile surface 1111 are triangular in shape, with an angle α between 30° and 60°, and a distance L3 between the vertices of two adjacent protruding teeth between 1 mm and 5 mm. The tooth grooves on the meshing teeth 1221 correspond to the protruding teeth on the tooth-profile surface 1111, i.e., the angle α of the tooth grooves is between 30° and 60°, thereby ensuring a more secure meshing of the meshing teeth 1221 with the tooth-profile surface 1111.

[0069] like Figure 4 and Figure 9 As shown, the main body 111 is provided with a scale 1112, and the osteotomy guide 12 is provided with a scale alignment line 124 and a scale observation window 125. The scale observation window 125 and the scale alignment line 124 correspond to the scale 1112. Specifically, the scale 1112 has an accuracy of 1 mm, and the scale observation window 125 is used to observe the numerical markings on the scale 1112. The scale alignment line 124 and the strip-shaped guide hole 123 are located on the same straight line, making it easier for the surgeon to observe the positioning of the osteotomy guide 12.

[0070] In some embodiments, as Figures 13 to 16 As shown, the pressurizing assembly 4 also includes a connecting rod 43, which is passed through the proximal pressurizing member 41 and the distal pressurizing member 42 along a first direction, and one end of the connecting rod 43 abuts against one of the proximal pressurizing member 41 and the distal pressurizing member 42, and the other end of the connecting rod 43 is threadedly engaged with the other of the proximal pressurizing member 41 and the distal pressurizing member 42. The connecting rod 43 can be rotated to adjust the relative position of the proximal pressurizing member 41 and the distal pressurizing member 42.

[0071] It is understood that the doctor can use a wrench to rotate the connecting rod 43, or use an automatic control element such as a motor to control the rotation of the connecting rod 43. When the connecting rod 43 is rotated, the connecting rod 43 can drive the proximal pressure member 41 and the distal pressure member 42 to move closer to each other under the action of the rotation of the thread, thereby applying a force to the proximal fixing member 2 and the distal fixing member 3 to move closer to each other, so that the femoral metaphysis 100 and the femoral shaft 200 gradually approach and fit together.

[0072] like Figures 13 to 16 As shown, after the femoral osteotomy is completed and the cut bone segment is removed, the osteotomy positioning and pressurization system can be switched to the pressurization mode. That is, the doctor can remove the osteotomy positioner 1, retain the proximal fixing member 2 and the distal fixing member 3, and then connect the proximal pressurization member 41 to the proximal fixing member 2, and the distal pressurization member 42 to the distal fixing member 3. The doctor rotates the connecting rod 43 to shorten the distance between the proximal pressurization member 41 and the distal pressurization member 42, so as to pressurize and reduce the cut femoral metaphysis 100 and femoral shaft 200.

[0073] Alternatively, as Figure 15 and Figure 16 As shown, a guide channel 411 is provided within the proximal pressure member 41, and a portion of the distal pressure member 42 is sleeved within the guide channel 411 and is movable in a first direction relative to the guide channel 411. Since the distal pressure member 42 is sleeved within the guide channel 411 and is movable relative to the proximal pressure member 41, the movement of the proximal and distal pressure members 41, 42, can be guided to avoid the problem of the proximal pressure member 41 being stuck when moving relative to the distal pressure member 42.

[0074] Specifically, if Figure 15 and Figure 16 As shown, a threaded channel 421 is provided in the distal pressure member 42, a connecting channel 412 is provided in the proximal pressure member 41, and a connecting rod 43 is provided through the connecting channel 412. One end of the connecting rod 43 abuts the proximal pressure member 41, and the other end of the connecting rod 43 is threadedly engaged with the threaded channel 421. It is understood that one end of the connecting rod 43 (the end of the connecting rod 43 adjacent to the proximal pressure member 41) has a wrench hole, and the doctor can engage the wrench hole with the wrench hole to drive the connecting rod 43 to rotate. Because one end of the connecting rod 43 abuts the proximal pressure member 41, the wrench hole of the connecting rod 43 can be positioned adjacent to the femoral metaphysis 100, that is, the wrench hole of the connecting rod 43 is closer to the incision of the femur, facilitating the doctor's intraoperative operation.

[0075] Furthermore, if Figure 14 and Figure 18As shown, the pressurizing assembly 4 further includes a pressurizing bone cutter 44, which is mounted on the proximal pressurizing member 41 and is used to cooperate with the greater trochanter of the femur. It is understood that when the proximal pressurizing member 41 and the distal pressurizing member 42 are pressurized, the pressurizing bone cutter 44 can be stuck at the position of the greater trochanter of the femur. When the proximal pressurizing member 41 moves toward the distal pressurizing member 42, the proximal fixing member 2 and the pressurizing bone cutter 44 can jointly apply an external force toward the femoral metaphysis 100 to move the femoral metaphysis 100 toward the femoral shaft 200. This can ensure the stability of the femoral metaphysis 100 during its movement and reduction, and reduce the soft tissue damage caused by femoral reduction in patients.

[0076] Alternatively, as Figures 14 to 16 As shown, both the proximal pressure member 41 and the distal pressure member 42 are provided with a pressure positioning portion 413, and each pressure positioning portion 413 is provided with a second positioning channel 414. In the pressure mode, the proximal fixing member 2 is inserted into the second positioning channel 414 of the proximal pressure member 41, and the distal fixing member 3 is inserted into the second positioning channel 414 of the distal pressure member 42. It is understandable that when the doctor needs to reposition the femoral metaphysis 100 and the femoral shaft 200, the proximal fixing member 2 can be inserted into the second positioning channel 414 of the proximal pressure member 41, and the distal fixing member 3 can be inserted into the second positioning channel 414 of the distal pressure member 42. Since in the positioning mode and the pressurization mode, the osteotomy locator 1 and the pressurization component 4 are respectively connected to the proximal fixator 2 and the distal fixator 3, so that the osteotomy locator 1 and the pressurization component 4 share a set of positioning references, thereby ensuring that the two osteotomy surfaces of the femoral epiphysis 100 and the femoral shaft 200 are parallel and have a high degree of fit.

[0077] In addition, since the pressure positioning parts 413 on the proximal pressure member 41 and the distal pressure member 42 are connected to the proximal fixing member 2 and the distal fixing member 3 by plugging, the convenience of fixing and disassembling the pressure component 4 can be improved, which is convenient for the doctor's operation during surgery and saves surgical time.

[0078] Alternatively, as Figures 14 to 16 As shown, the pressurizing assembly 4 also includes a second locking component 45, which is provided on at least one of the two pressurizing positioning parts 413. The second locking component 45 includes a second pressure block 451 and a second adjusting member 452. The second pressure block 451 is arranged on one side of the pressurizing positioning part 413 along the radial direction of the second positioning channel 414, and the second positioning channel 414 is formed between the second pressure block 451 and the pressurizing positioning part 413. The second adjusting member 452 is connected to the second pressure block 451 and the pressurizing positioning part 413. The second adjusting member 452 is used to adjust the position of the second pressure block 451 along the radial direction of the second positioning channel 414.

[0079] It can be understood that the second adjusting member 452 can adjust the position of the second pressure block 451 along the radial direction of the second positioning channel 414 to clamp and release the proximal fixing member 2 or the distal fixing member 3, thereby avoiding the problem of the pressurized positioning part 413 shaking relative to the proximal fixing member 2 and the distal fixing member 3 after installation, which is beneficial to improving the accuracy of femoral reduction and is convenient for disassembly and assembly.

[0080] For example, there are two second locking components 45 , and the two second locking components 45 are respectively provided on the two pressurizing and positioning portions 413 .

[0081] like Figure 16 As shown, taking the locking and releasing of the proximal fixing member 2 by the second locking component 45 as an example, before the proximal fixing member 2 is inserted into the second positioning channel 414, the second pressure block 451 can be moved away from the second positioning channel 414 by the second adjusting member 452 to increase the aperture of the second positioning channel 414, thereby ensuring that the proximal fixing member 2 can smoothly pass through the second positioning channel 414. After the proximal fixing member 2 is installed in the second positioning channel 414, the second pressure block 451 can be moved toward the direction adjacent to the second positioning channel 414 by the second adjusting member 452 to compress and lock the proximal fixing member 2, thereby preventing the proximal fixing member 2 from shaking relative to the proximal pressurizing member 41, thereby improving the accuracy of the pressurizing assembly 4 during pressurized positioning.

[0082] Optionally, the second locking component 45 further includes a second elastic member 453, which is disposed between the second pressure block 451 and the pressurized positioning portion 413. The second elastic member 453 has an elastic force that drives the second pressure block 451 to move away from the pressurized positioning portion 413. For example, the second elastic member 453 may be a spring. Because the second elastic member 453 has an elastic force that drives the second pressure block 451 to move away from the pressurized positioning portion 413, the stability of the movement of the second pressure block 451 is ensured, thereby preventing the proximal fixing member 2 (distal fixing member 3) from becoming stuck during insertion due to the second pressure block 451 shaking relative to the pressurized positioning portion 413.

[0083] In one example, if Figure 16 As shown, each second locking component 45 includes two second elastic members 453, symmetrically arranged on either side of the second adjusting member 452. This further prevents the proximal fixing member 2 (or distal fixing member 3) from jamming during installation due to the second pressure block 451 swinging relative to the pressure positioning portion 413. Specifically, both the pressure positioning portion 413 and the second pressure block 451 are provided with relief grooves, within which the second elastic members 453 are mounted.

[0084] Alternatively, as Figure 16As shown, the second adjustment member 452 is threaded through the second pressure block 451 and engages with the pressure positioning portion 413. It will be appreciated that the second adjustment member 452 is a threaded member. The surgeon can use a wrench to tighten the second adjustment member 452 to adjust the gap between the second pressure block 451 and the pressure positioning portion 413 along the second direction, thereby tightening and releasing the proximal fixation member 2 (distal fixation member 3). By configuring the second locking member 45 with the aforementioned structure, the osteotomy positioning and pressure system of this embodiment of the present invention simplifies its structure and transmission mechanism, reduces production costs of the second locking member 45, and enhances reliability.

[0085] Furthermore, the second locking component 45 also includes a second limiting pin (not shown), which is disposed through the pressurized positioning portion 413 and can abut against the second adjusting member 452 to limit the separation of the second adjusting member 452 from the pressurized positioning portion 413. It is understood that when the second adjusting member 452 is gradually loosened and moves to the limit position, it can be stopped by the second limiting pin to constrain the movement of the second adjusting member 452, thereby avoiding the problem of separation of the second pressure block 451 from the pressurized positioning portion 413 due to the second adjusting member 452 coming out, making the adjustment of the second locking component 455 more convenient and more reliable.

[0086] like Figure 14 and Figure 15 As shown, each pressurizing positioning portion 413 is provided with a plurality of second positioning channels 414, which are spaced apart along the first direction. It is understood that different proximal fixing members 2 and distal fixing members 3 can be respectively installed in different second positioning channels 414, thereby expanding the application range of the pressurizing assembly 4.

[0087] Alternatively, as Figure 17 and Figure 18 As shown, in the anterior-posterior direction of the human femur, the proximal fixing member 2 is located posterior to the distal fixing member 3, and the distance B between the center of the proximal fixing member 2 and the center of the distal fixing member 3 is 0 to 60 mm. For example, the distance B can be 5 mm, 10 mm, 30 mm, 40 mm, or 60 mm.

[0088] The osteotomy positioning and pressurization system of an embodiment of the present invention can avoid the problem of interference between the proximal fixer 2 and the femoral stem 5 when the femoral stem 5 is implanted during surgery by separating the center of the proximal fixer 2 and the center of the distal fixer 3 by a certain distance in the front-to-back direction (that is, the proximal fixer 2 and the distal fixer 3 are eccentrically arranged). Therefore, the femoral stem 5 can be implanted and pressurized at the same time, and the operation time is reduced to ensure that the femur can be safely repositioned.

[0089] Correspondingly, in this embodiment, the proximal pressure positioning portion 413 is also arranged behind the distal pressure positioning portion 413, and the eccentric distance between the proximal pressure positioning portion 413 and the distal pressure positioning portion 413 is equal to the eccentric distance between the proximal fixing member 2 and the distal fixing member 3. In other words, the eccentric distance of the pressure positioning portion 413 is the same as the eccentric distance of the proximal fixing member 2, which facilitates the installation of the proximal fixing member 2 and the pressure positioning portion 413. Similarly, the two osteotomy positioning portions 112 of the positioning body 11 are also eccentrically arranged, and the eccentric distance is equal to the eccentric distance between the proximal fixing member 2 and the distal fixing member 3, which facilitates the installation of the proximal fixing member 2 and the osteotomy positioning portion 112.

[0090] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0091] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0092] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0093] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0094] In the present invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0095] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present invention.

Claims

1. An osteotomy positioning and pressurization system, characterized in that: include: A positioning assembly, the positioning assembly comprising an osteotomy positioner, a proximal fixing member, and a distal fixing member, the proximal fixing member being connected to the femoral metaphysis, the distal fixing member being connected to the femoral shaft, the osteotomy positioner comprising a positioning body and an osteotomy guide, the positioning body extending along a first direction, the osteotomy guide being adjustable relative to the positioning body along the first direction; A pressurizing assembly, the pressurizing assembly comprising a proximal pressurizing member and a distal pressurizing member, wherein the positions of the proximal pressurizing member and the distal pressurizing member along the first direction are adjustable; The osteotomy positioning and pressurization system has a positioning mode and a pressurization mode. In the positioning mode, the proximal end of the positioning body is connected to the proximal fixing member, and the distal end of the positioning body is connected to the distal fixing member; in the pressurization mode, the proximal pressurization member is connected to the proximal fixing member, and the distal pressurization member is connected to the distal fixing member.

2. The osteotomy positioning and pressurization system according to claim 1, characterized in that: The positioning body includes a main body and two osteotomy positioning parts, the two osteotomy positioning parts are respectively arranged at both ends of the main body along the first direction, the osteotomy guide plate is installed on the main body, and its position relative to the main body along the first direction is adjustable, and the osteotomy positioning parts are each provided with a first positioning channel. In the positioning mode, the proximal fixing piece is passed through the first positioning channel on one of the osteotomy positioning parts, and the distal fixing piece is passed through the first positioning channel on the other osteotomy positioning part.

3. The osteotomy positioning and pressurization system according to claim 2, characterized in that: The main body is spaced apart from the osteotomy positioning portion along a second direction, and the second direction is orthogonal to the first direction and the axial direction of the first positioning channel. In the second direction, the distance between the center line of the main body along the first direction and the center line of the osteotomy positioning portion along the first direction is A, wherein 40mm≤A≤80mm.

4. The osteotomy positioning and pressurization system according to claim 2, characterized in that: The osteotomy locator also includes a first locking component, which is provided on at least one of the two osteotomy positioning parts. The first locking component includes a first pressing block and a first adjusting component. The first pressing block is arranged on one side of the osteotomy positioning part along the radial direction of the first positioning channel, and the first positioning channel is formed between the first pressing block and the osteotomy positioning part. The first adjusting component is connected to the first pressing block and the osteotomy positioning part. The first adjusting component is used to adjust the position of the first pressing block along the radial direction of the first positioning channel.

5. The osteotomy positioning and pressurization system according to claim 4, characterized in that: The first locking component further includes a first elastic member, which is disposed between the first pressing block and the osteotomy positioning portion, and has an elastic force that drives the first pressing block to move in a direction away from the osteotomy positioning portion; And / or, the first adjusting member is provided through the first pressing block and is threadably engaged with the osteotomy positioning portion; And / or, the first locking component further includes a first limiting pin, the first limiting pin being provided through the osteotomy positioning portion, the first limiting pin being able to abut against the first adjusting member to limit the first adjusting member from being separated from the osteotomy positioning portion; And / or, each of the osteotomy positioning portions is provided with a plurality of the first positioning channels, and the plurality of the first positioning channels are arranged at intervals along the first direction.

6. The osteotomy positioning and pressurization system according to claim 2, characterized in that: The main body is provided with a toothed surface, the toothed surface extending along the first direction, the osteotomy guide comprises a guide body and a locking button, the guide body is slidably sleeved on the main body, the locking button is provided with meshing teeth, the locking button is movable between a locking position and a release position, in which the meshing teeth are engaged with the toothed surface in the locking position, and in which the meshing teeth are spaced apart from the toothed surface in the release position; And / or, a scale is provided on the main body, and a scale alignment line and a scale observation window are provided on the osteotomy guide plate, and the scale observation window and the scale alignment line correspond to the scale; And / or, the osteotomy guide plate is provided with a strip-shaped guide hole, and the strip-shaped guide hole is used to pass the osteotomy knife.

7. The osteotomy positioning and pressurizing system according to any one of claims 1 to 6, characterized in that: The pressurizing assembly further includes a connecting rod, the connecting rod being passed through the proximal pressurizing member and the distal pressurizing member along the first direction, one end of the connecting rod being in contact with one of the proximal pressurizing member and the distal pressurizing member, the other end of the connecting rod being threadedly engaged with the other of the proximal pressurizing member and the distal pressurizing member, and the connecting rod being rotatable to adjust the relative position of the proximal pressurizing member and the distal pressurizing member; And / or, in the anterior-posterior direction of the human femur, the proximal fixing member is located behind the distal fixing member, and the distance between the center of the proximal fixing member and the center of the distal fixing member is 0 to 60 mm.

8. The osteotomy positioning and pressurization system according to claim 7, characterized in that: A guide channel is provided in the proximal pressure member, a portion of the distal pressure member is sleeved in the guide channel and is movable relative to the guide channel along the first direction, a threaded channel is provided in the distal pressure member, a connecting channel is provided in the proximal pressure member, the connecting rod is passed through the connecting channel, one end of the connecting rod abuts against the proximal pressure member, and the other end of the connecting rod is threadedly engaged with the threaded channel; And / or, the pressurizing assembly further comprises a pressurizing bone cutter, the pressurizing bone cutter is mounted on the proximal pressurizing member, and the pressurizing bone cutter is used to cooperate with the greater trochanter of the femur.

9. The osteotomy positioning and pressurizing system according to any one of claims 1 to 6, characterized in that: The proximal pressure member and the distal pressure member are both provided with a pressure positioning portion, and the pressure positioning portion is both provided with a second positioning channel. In the pressurization mode, the proximal fixing member is passed through the second positioning channel on the proximal pressure member, and the distal fixing member is passed through the second positioning channel on the distal pressure member.

10. The osteotomy positioning and pressurization system according to claim 9, characterized in that: The pressurizing assembly also includes a second locking component, which is provided on at least one of the two pressurizing positioning parts. The second locking component includes a second pressure block and a second adjusting component. The second pressure block is arranged on one side of the pressurizing positioning part along the radial direction of the second positioning channel, and the second positioning channel is formed between the second pressure block and the pressurizing positioning part. The second adjusting component is connected to the second pressure block and the pressurizing positioning part. The second adjusting component is used to adjust the position of the second pressure block along the radial direction of the second positioning channel.

Images