Mounting assembly, caster angle or distance adjusting assembly and tibia osteotomy positioning device

Abstract

The invention discloses a mounting assembly, a caster angle adjusting assembly, a distance adjusting assembly and a tibia osteotomy positioning device.The tibia osteotomy positioning device is connected with a tibia osteotomy block through the mounting assembly, fixed to a human body through a fixing assembly and then connected with the mounting assembly and the fixing assembly through the distance adjusting assembly; therefore, the distance between the tibia osteotomy block and the fixing assembly is adjusted. The distance adjusting assembly only needs to enable the moving part to be switched between the coupling state and the decoupling state, the two functions of rapid adjustment and micro adjustment of the distance between the tibia osteotomy block and the fixing assembly can be achieved, operation is very convenient, and the structure is simple.

Description

[0001] This application claims the priority of a Chinese patent application titled "Installation Component, Posterior Inclination or Distance Adjustment Component and Tibial Osteotomy Positioning Device" with the application number 202311624605.3 and filed with the China National Intellectual Property Administration on November 28, 2023. The entire content of which is incorporated herein by reference. Technical Field

[0002] This application relates to the technical field of medical devices, and particularly to an installation component, a posterior inclination or distance adjustment component, and a tibial osteotomy positioning device. Background Art

[0003] A tibial osteotomy positioning device is a medical device for positioning osteotomy blocks during tibial osteotomy surgery of the knee joint. The tibial osteotomy positioning device usually needs to quickly adjust and finely adjust the height of the osteotomy block to achieve precise control of the osteotomy amount. However, the existing tibial osteotomy positioning device realizes the quick adjustment and fine adjustment of the height of the osteotomy block through two independent adjustment structures respectively, and its structure is relatively complex. Summary of the Invention

[0004] An embodiment of this application provides a tibial osteotomy positioning device, aiming to solve the problem that the structure for quickly adjusting and finely adjusting the height of the osteotomy block of the existing tibial osteotomy positioning device is relatively complex.

[0005] An embodiment of this application provides a tibial osteotomy positioning device, including a distance adjustment component, an installation component, and a fixing component; the installation component is used to connect with the tibial osteotomy block, the fixing component is used to be fixed on the human body, the distance adjustment component is respectively connected to the installation component and the fixing component, and the distance adjustment component is used to adjust the distance between the installation component and the fixing component;

[0006] The distance adjustment component includes a first adjustment member, a second adjustment member, and a moving member;

[0007] One of the first adjustment member and the second adjustment member is connected to the fixing component, and the other of the first adjustment member and the second adjustment member is connected to the installation component. The first adjustment member and the second adjustment member can move relative to each other to adjust the distance between the installation component and the fixing component;

[0008] The number of the moving members is one, the moving member is connected to the first adjustment member, and the moving member can be in a coupled state and a decoupled state;

[0009] When the moving member is in the coupled state, the moving member is coupled to the second adjusting member, and the moving member can move relative to the first adjusting member and the second adjusting member to drive the first adjusting member and the second adjusting member to move relative to each other;

[0010] When the moving member is in the decoupled state, the moving member is decoupled from the second adjusting member. In a state where the first adjusting member and the moving member remain relatively stationary, the two can move relative to the second adjusting member together under the action of an external force; or, the first adjusting member can drive the moving member to move relative to the second adjusting member together under the action of an external force.

[0011] The tibial osteotomy positioning device provided by the embodiment of the present application is connected to the tibial osteotomy block through the installation assembly, fixed to the human body through the fixing assembly, and then the distance adjusting assembly is respectively connected to the installation assembly and the fixing assembly to adjust the distance between the tibial osteotomy block and the fixing assembly.

[0012] Among them, by enabling a moving member to move between a coupled state and a decoupled state relative to the first adjusting member, when the moving member is in the coupled state, the moving member is coupled to the second adjusting member, and the moving member can move relative to the first adjusting member and the second adjusting member to drive the first adjusting member and the second adjusting member to move relative to each other, so that a relatively small amount of relative movement occurs between the first adjusting member and the second adjusting member, to perform a fine adjustment on the distance between the installation assembly and the fixing assembly, and further perform a fine adjustment on the distance between the tibial osteotomy block and the fixing assembly, that is, perform a fine adjustment on the height of the tibial osteotomy block.

[0013] When the moving member is in the decoupled state, the moving member is decoupled from the second adjusting member. In a state where the first adjusting member and the moving member remain relatively stationary, the two can move relative to the second adjusting member together under the action of an external force; or, the first adjusting member can drive the moving member to move relative to the second adjusting member together under the action of an external force. At this time, the first adjusting member and the second adjusting member can be made to move relatively quickly manually, so as to perform a fine adjustment on the distance between the installation assembly and the fixing assembly, and further perform a quick adjustment on the distance between the bone osteotomy block and the fixing assembly, that is, perform a quick adjustment on the height of the tibial osteotomy block.

[0014] Therefore, only by moving the moving member between the coupled state and the decoupled state, the two functions of quick adjustment and fine adjustment of the tibial osteotomy block can be realized. It is not only very convenient to operate, but also has a relatively simple structure. Description of the Drawings

[0015] The following will make the technical solutions and other beneficial effects of the present application obvious by describing the specific embodiments of the present application in detail in conjunction with the drawings.

[0016] Figure 1Schematic structural diagram of an embodiment of the tibial osteotomy positioning device provided by an embodiment of the present application;

[0017] Figure 2 Schematic structural diagram of an embodiment of the tibial osteotomy positioning device provided by an embodiment of the present application, wherein the installation component is not connected to the tibial osteotomy block;

[0018] Figure 3 For Figure 2 Cross-sectional view of the tibial osteotomy positioning device in [reference number], which is sectioned along the first direction X;

[0019] Figure 4 For Figure 3 Enlarged view of part A in [reference number], wherein the moving part is in a decoupled state;

[0020] Figure 5 For Figure 4 Schematic structural diagram when the moving part in [reference number] is in a coupled state;

[0021] Figure 6 Schematic structural diagram of another embodiment of the tibial osteotomy positioning device provided by an embodiment of the present application;

[0022] Figure 7 For Figure 6 Cross-sectional view of the tibial osteotomy positioning device in [reference number], which is sectioned along the first direction X;

[0023] Figure 8 For Figure 7 Enlarged view of part B in [reference number];

[0024] Figure 9 For Figure 7 Enlarged view of part C in [reference number];

[0025] Figure 10 Schematic structural diagram of an embodiment after the installation component provided by an embodiment of the present application is connected to the tibial osteotomy block;

[0026] Figure 11 Schematic structural diagram of an embodiment after the installation component provided by an embodiment of the present application is separated from the tibial osteotomy block;

[0027] Figure 12 Schematic structural diagram of an embodiment of the fixing part provided by an embodiment of the present application;

[0028] Figure 13 Schematic structural diagram of an embodiment of the locking part and the tibial osteotomy block provided by an embodiment of the present application;

[0029] Figure 14 For Figure 1 Another perspective view of the tibial osteotomy positioning device in [reference number];

[0030] Figure 15 is Figure 14 an enlarged view of part D in

[0031] Figure 16 is Figure 14 a cross-sectional view of the tibial osteotomy positioning device in , which is sectioned along the first direction X;

[0032] Figure 17 is Figure 16 an enlarged view of part E in , where the adjustment knob is in the second locking position;

[0033] Figure 18 is Figure 17 a schematic structural view of when the adjustment knob is in the second unlocking position;

[0034] Figure 19 a schematic structural view of another embodiment of the posterior tilt adjustment assembly and the mounting assembly provided by the embodiment of the present application;

[0035] Figure 20 a schematic structural view of another embodiment of the tibial osteotomy block separated from the mounting assembly provided by the embodiment of the present application;

[0036] Figure 21 a schematic structural view of one embodiment of the adjustment knob provided by the embodiment of the present application;

[0037] Figure 22 a schematic structural view of one embodiment of the limiting member provided by the embodiment of the present application;

[0038] Figure 23 is Figure 22 another angular view of the limiting member in ;

[0039] Figure 24 a schematic structural view of one embodiment of the transmission member provided by the embodiment of the present application;

[0040] Figure 25 a schematic structural view of the transmission member and the limiting member connected together provided by the embodiment of the present application.

[0041] Tibial osteotomy positioning device 100; distance adjustment assembly 110; first adjustment member 111; sleeve portion 1111; mounting seat 1112; mounting portion 1113; limiting portion 1114; third connecting portion 1115; first chute 1116; positioning member 112; first positioning portion 1121; positioning groove 1122; guiding hole 1123; second adjustment member 113; rack segment 1131; first side surface 1132; second side surface 1133; engaging teeth 1134; moving member 114; inner surface 1141; through hole 1142; adjusting thread 1143; first mounting hole 1144; connecting member 115; first connecting portion 1151; first sliding portion 1152; through hole 1153; first elastic member 116; mounting assembly 120; locking member 121; hooking portion 1211; first clamping portion 1212; locking hole 1213; fixing portion 122; second jack 1221; mounting groove 1222; positioning hole 1223; second elastic member 123; fixing assembly 130; posterior tilt adjustment assembly 140; base 141; first transmission member 142; connecting hole 1421; adjusting mechanism 143; adjusting knob 1431; second positioning portion 1432; second transmission member 1433; driving shaft 1434; sliding projection 1435; sliding groove 1436; abutting portion 1437; operation hole 1438; third elastic member 144; tibial osteotomy block 150; first jack 151; plugging post 152; first clamping groove 1521; positioning post 153; tibia 200; operating member 300; first direction X; second direction Y; third direction Z; first rotation axis L1; axis L2. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0043] The embodiments of the present application provide a mounting assembly, a posterior tilt or distance adjustment assembly, and a tibial osteotomy positioning device. The following will be described in detail respectively.

[0044] First of all, the embodiments of the present application provide a tibial osteotomy positioning device.

[0045] Figure 1 It is a schematic structural diagram of an embodiment of the tibial osteotomy positioning device provided by the embodiments of the present application. As Figure 1As shown, the tibial osteotomy positioning device 100 includes a distance adjustment component 110, a mounting component 120, and a fixing component 130. The mounting component 120 is used to connect with the tibial osteotomy block 150, the fixing component 130 is used to be fixed to the human body, the distance adjustment component 110 is respectively connected to the mounting component 120 and the fixing component 130, and the distance adjustment component 110 is used to adjust the distance between the tibial osteotomy block 150 and the fixing component 130, that is, to adjust the position or height of the tibial osteotomy block 150 in the length direction of the tibia 200. Among them, the distance adjustment component 110 is used to adjust the distance between the mounting component 120 and the fixing component 130, so as to adjust the distance between the fixing component 130 and the tibial osteotomy block 150 connected to the mounting component 120.

[0046] In the tibial osteotomy surgery, medical staff can fix the fixing component 130 to the ankle or other parts of the human body, so that the mounting component 120 and the fixing component 130 are arranged in sequence along the length direction of the tibia 200, and the mounting component 120 is closer to the knee joint than the fixing component 130. Then, the distance between the mounting component 120 and the fixing component 130 is adjusted through the distance adjustment component 110, so as to adjust the distance between the fixing component 130 and the tibial osteotomy block 150 connected to the mounting component 120 in the length direction of the tibia 200.

[0047] The fixing component 130 can be an ankle clamp for clamping and fixing to the ankle of the human body. Of course, the fixing component 130 can also be any other structure that can be fixed to the human body. The distance adjustment component 110 can be directly connected to the fixing component 130, or indirectly connected to the fixing component 130 through other structures, as long as the distance adjustment component 110 can adjust the distance between the fixing component 130 and the tibial osteotomy block 150 connected to the mounting component 120.

[0048] The mounting component 120 can be detachably connected or non-detachably connected to the tibial osteotomy block 150. Of course, the former can make it more convenient for medical staff to replace different types of tibial osteotomy blocks 150. The distance adjustment component 110 can be directly connected to the mounting component 120, or indirectly connected to the mounting component 120 through other structures or components, as long as the distance adjustment component 110 can adjust the distance between the fixing component 130 and the mounting component 120, and then adjust the distance between the fixing component 130 and the tibial osteotomy block 150 connected to the mounting component 120.

[0049] Continue to refer to Figure 1, the tibial osteotomy positioning device 100 may further include a posterior tilt angle adjustment component 140. The distance adjustment component 110 is connected to the mounting component 120 through the posterior tilt angle adjustment component 140. The posterior tilt angle adjustment component 140 is used to adjust the posterior tilt angle α of the mounting component 120, and further adjust the posterior tilt angle of the tibial osteotomy block 150 connected to the mounting component 120. The posterior tilt angle of the tibial osteotomy block 150 refers to the angle at which the tibial osteotomy block 150 is inclined in the direction away from the fixing component 130. By adjusting the posterior tilt angle of the tibial osteotomy block 150, the osteotomy position of the tibia 200 can be positioned more accurately, so that the posterior tilt angle of the tibia or the posterior tilt angle of the tibial plateau formed after osteotomy of the tibia 200 through the tibial osteotomy block 150 is more appropriate.

[0050] Among them, the posterior tilt angle adjustment component 140 adjusts the posterior tilt angle of the tibial osteotomy block 150 connected to the mounting component 120 by adjusting the posterior tilt angle α of the mounting component 120. The distance adjustment component 110 can be directly connected to the posterior tilt angle adjustment component 140, or indirectly connected to the posterior tilt angle adjustment component 140 through other connection structures. The distance adjustment component 110 adjusts the distance between the posterior tilt angle adjustment component 140 and the fixing component 130 to adjust the distance between the mounting component 120 connected to the posterior tilt angle adjustment component 140 and the fixing component 130, and further adjust the distance between the tibial osteotomy block 150 connected to the mounting component 120 and the fixing component 130. It should be noted that when the tibial osteotomy positioning device 100 does not need to adjust the posterior tilt angle of the tibial osteotomy block 150, the tibial osteotomy positioning device 100 may not include the posterior tilt angle adjustment component 140. When the tibial osteotomy positioning device 100 does not need to adjust the distance between the tibial osteotomy block 150 and the fixing component 130, the tibial osteotomy positioning device 100 may not include the distance adjustment component 110. At this time, the mounting component 120 can be connected to the fixing component 130, or the posterior tilt angle adjustment component 140 can be respectively connected to the mounting component 120 and the fixing component 130, which can be determined according to the functions required by the tibial osteotomy positioning device 100.

[0051] Such as Figure 1 and Figure 2As shown, the distance adjustment assembly 110 may include a first adjustment member 111 and a second adjustment member 113. One of the first adjustment member 111 and the second adjustment member 113 is connected to the fixing assembly 130, and the other of the first adjustment member 111 and the second adjustment member 113 is connected to the mounting assembly 120. The first adjustment member 111 and the second adjustment member 113 can move relative to each other to adjust the distance between the tibial osteotomy block 150 and the fixing assembly 130. Among them, the first adjustment member 111 can be connected to the fixing assembly 130 and the second adjustment member 113 can be connected to the mounting assembly 120, or alternatively, the first adjustment member 111 can be connected to the mounting assembly 120 and the second adjustment member 113 can be connected to the fixing assembly 130. Regardless of the connection method adopted, when the first adjustment member 111 and the second adjustment member 113 move relative to each other, the distance between the fixing assembly 130 and the mounting assembly 120 can be adjusted, and further the distance between the tibial osteotomy block 150 and the fixing assembly 130 can be adjusted.

[0052] Continue to refer to Figure 1 and Figure 2 , the first adjustment member 111 and the second adjustment member 113 can slide relative to each other in the first direction X to adjust the distance between the fixing assembly 130 and the mounting assembly 120, and further adjust the distance between the tibial osteotomy block 150 and the fixing assembly 130 in the first direction X. Or, the first adjustment member 111 and the second adjustment member 113 can be rotated relative to each other to adjust the distance between the fixing assembly 130 and the mounting assembly 120, and further adjust the distance between the tibial osteotomy block 150 and the fixing assembly 130 in the first direction X. In addition, the first adjustment member 111 can also move relative to the second adjustment member 113 in other ways, as long as the distance between the fixing assembly 130 and the mounting assembly 120 can be adjusted when the first adjustment member 111 and the second adjustment member 113 move relative to each other, and further the distance between the tibial osteotomy block 150 and the fixing assembly 130 in the first direction X can be adjusted.

[0053] In some embodiments, as Figure 1 and Figure 2 shown, the distance adjustment assembly 110 further includes a moving member 114, and the number of the moving members 114 is one. The moving member 114 can make the first adjustment member 111 and the second adjustment member 113 in a fine adjustment state. At this time, the relative positions of the first adjustment member 111 and the second adjustment member 113 can be finely adjusted through the moving member 114, so as to finely adjust the distance between the fixing assembly 130 and the mounting assembly 120. At the same time, the moving member 114 can also make the first adjustment member 111 and the second adjustment member 113 in a quick adjustment state. At this time, the relative positions of the first adjustment member 111 and the second adjustment member 113 can move relatively quickly, so as to quickly adjust the distance between the fixing assembly 130 and the mounting assembly 120. Among them, as Figures 3 to 5As shown, the moving member 114 can be in a coupled state ( Figure 5 ), and a decoupled state ( Figure 4 ). When the moving member 114 is in the coupled state, the relative positions of the first adjusting member 111 and the second adjusting member 113 can be finely adjusted by the moving member 114; when the moving member 114 is in the decoupled state, the relative positions of the first adjusting member 111 and the second adjusting member 113 can move relatively quickly.

[0054] In some embodiments, when the moving member 114 is in the coupled state, the first adjusting member 111 and the second adjusting member 113 are in a fine-tuning state. The moving member 114 is coupled to the second adjusting member 113, and the moving member 114 can move relative to the first adjusting member 111 and the second adjusting member 113 to drive the relative movement of the first adjusting member 111 and the second adjusting member 113. By controlling the movement speed of the moving member 114 relative to the first adjusting member 111 and the second adjusting member 113, the relative movement speed of the first adjusting member 111 and the second adjusting member 113 can be controlled, so as to control the relative movement speed of the tibial osteotomy block 150 and the fixing assembly 130, so as to realize fine adjustment of the distance between the tibial osteotomy block 150 and the fixing assembly 130, and make the tibial osteotomy block 150 move more accurately to a predetermined position. When the moving member 114 is in the decoupled state, the moving member 114 is decoupled from the second adjusting member 113. At this time, in a state where the first adjusting member 111 and the moving member 114 remain relatively stationary, the two can move relative to the second adjusting member 113 together under the action of an external force; alternatively, the first adjusting member 111 can drive the moving member 114 to move relative to the second adjusting member 113 together under the action of an external force. That is, when the moving member 114 is in the decoupled state, the moving member 114 does not limit or limits less the relative movement between the first adjusting member 111 and the second adjusting member 113, and the first adjusting member 111 can move freely relative to the second adjusting member 113. Thus, medical staff can manually apply an external force to the first adjusting member 111 and / or the moving member 114 to make the first adjusting member 111 and the moving member 114 move relatively quickly relative to the second adjusting member 113, thereby realizing rapid adjustment of the distance between the tibial osteotomy block 150 and the fixing assembly 130.

[0055] The tibial osteotomy positioning device 100 provided by the embodiment of the present application is connected to the tibial osteotomy block 150 through the mounting assembly 120, fixed to the human body through the fixing assembly 130, and then the distance adjusting assembly 110 is respectively connected to the mounting assembly 120 and the fixing assembly 130 to adjust the distance between the tibial osteotomy block 150 and the fixing assembly 130. Among them, by enabling a moving member 114 to switch between a coupled state and a decoupled state relative to the first adjusting member 111, when the moving member 114 is in the coupled state, the moving member 114 is coupled to the second adjusting member 113, and the moving member 114 can move relative to the first adjusting member 111 and the second adjusting member 113 to drive the relative movement of the first adjusting member 111 and the second adjusting member 113, so that a relatively small amount of movement occurs between the first adjusting member 111 and the second adjusting member 113, thereby performing a fine adjustment on the distance between the tibial osteotomy block 150 and the fixing assembly 130, that is, performing a fine adjustment on the height of the tibial osteotomy block 150; when the moving member 114 is in the decoupled state, the moving member 114 is decoupled from the second adjusting member 113, and the first adjusting member 111 is in a state where it can move freely relative to the second adjusting member 113. At this time, the first adjusting member 111 and the moving member 114 can be moved relatively quickly relative to the second adjusting member 113 manually, thereby performing a quick adjustment on the distance between the tibial osteotomy block 150 and the fixing assembly 130, that is, performing a quick adjustment on the height of the tibial osteotomy block 150. Thus, only by moving the moving member 114 between the coupled state and the decoupled state, the two functions of quick adjustment and fine adjustment of the tibial osteotomy block 150 can be realized, which is not only very convenient to operate but also has a relatively simple structure. It should be noted that the movement between the first adjusting member 111 and the second adjusting member 113 is relative. It can be that the second adjusting member 113 remains stationary relative to the human body and the first adjusting member 111 moves relative to the human body, or both the first adjusting member 111 and the second adjusting member 113 move relative to the human body, and there is a relative movement between the first adjusting member 111 and the second adjusting member 113. When the moving member 114 drives the relative movement of the first adjusting member 111 and the second adjusting member 113, the movement mode of the moving member 114 relative to the first adjusting member 111 and the second adjusting member 113 includes rotation, sliding, and any other mode that can drive the relative movement of the first adjusting member 111 and the second adjusting member 113.

[0056] Alternatively, the moving member 114 can be slidably connected, rotatably connected, or connected in other ways to the first adjusting member 111, so that the moving member 114 can be switched between a coupled state and a decoupled state relative to the first adjusting member 111. Or, when the moving member 114 is switched between the coupled state and the decoupled state, the structure of the moving member 114 itself can change, as long as it can be achieved that when the moving member 114 is in the coupled state, the moving member 114 is coupled to the second adjusting member 113, and the moving member 114 can move relative to the second adjusting member 113 to drive the relative movement of the first adjusting member 111 and the second adjusting member 113, and when the moving member 114 is in the decoupled state, the moving member 114 is decoupled from the second adjusting member 113, and the first adjusting member 111 is in a state where it can move quickly relative to the second adjusting member 113.

[0057] In some embodiments, when the moving member 114 is in the coupled state, during the process of the moving member 114 moving relative to the first adjusting member 111 and the second adjusting member 113, the moving member 114 can respectively apply a thrust force to the first adjusting member 111 and the second adjusting member 113 to push the relative movement of the first adjusting member 111 and the second adjusting member 113. Among them, during the process of the moving member 114 moving relative to the first adjusting member 111 and the second adjusting member 113, the moving member 114 applies a first thrust force to the first adjusting member 111 and a second thrust force to the second adjusting member 113, and the first thrust force is used to drive the first adjusting member 111 to move relative to the second adjusting member 113, and the second thrust force is used to drive the second adjusting member 113 to move relative to the first adjusting member 111. It should be noted that the first thrust force and the second thrust force can be forces with equal magnitudes and opposite directions, or forces with different magnitudes or an included angle in direction, as long as the first thrust force and the second thrust force can push the relative movement of the first adjusting member 111 and the second adjusting member 113.

[0058] In some embodiments, when the moving member 114 is in the coupled state, the moving member 114 can be in contact with the second adjusting member 113. At this time, the moving member 114 can move relative to the first adjusting member 111 and the second adjusting member 113, so that the moving member 114 can drive the first adjusting member 111 to move relative to the second adjusting member 113. When the moving member 114 is in the decoupled state, the moving member 114 can be separated from the second adjusting member 113, so that the first adjusting member 111 is in a state where it can move quickly relative to the second adjusting member 113. Of course, when the moving member 114 is in the decoupled state, the moving member 114 can also be in a contact state with the second adjusting member 113, as long as the moving member 114 does not limit the first adjusting member 111 to move quickly relative to the second adjusting member 113.

[0059] In some embodiments, when the moving member 114 is in the coupled state, the moving member 114 can be engaged with the second adjusting member 113, so that when the moving member 114 moves relative to the first adjusting member 111 and the second adjusting member 113, it can drive the first adjusting member 111 and the second adjusting member 113 to move relative to each other. When the moving member 114 is in the decoupled state, the moving member 114 can be disengaged from the second adjusting member 113, so that the moving member 114 is in a state where it can move rapidly relative to the second adjusting member 113. Among them, as Figure 3 and Figure 4 shown, the second adjusting member 113 of the distance adjusting assembly 110 includes a rack segment 1131 extending along the first direction X. The rack segment 1131 includes opposite first side surface 1132 and second side surface 1133. The first side surface 1132 and the second side surface 1133 extend along the length direction of the rack segment 1131 respectively. A plurality of engaging teeth 1134 are provided on the second side surface 1133 of the rack segment 1131, and the plurality of engaging teeth 1134 are distributed in sequence along the length direction of the rack segment 1131.

[0060] The moving member 114 includes an adjusting thread 1143 extending along the first direction X. The adjusting thread 1143 of the moving member 114 can be adaptively engaged with the engaging teeth 1134 on the rack segment 1131 of the second adjusting member 113. Among them, when the moving member 114 is in the coupled state, the adjusting thread 1143 is engaged with the rack segment 1131, and the moving member 114 can rotate relative to the first adjusting member 111 and the second adjusting member 113 to drive the first adjusting member 111 and the second adjusting member 113 to move relative to each other. Among them, when the first adjusting member 111 and the second adjusting member 113 can slide relative to each other in the first direction X, the moving member 114 can rotate relative to the first adjusting member 111 and the second adjusting member 113 to drive the first adjusting member 111 to slide along the first direction X relative to the second adjusting member 113.

[0061] It can be understood that after the moving member 114 is engaged with the rack segment 1131, during the process of rotating the moving member 114, through the cooperation of the adjusting thread 1143 of the moving member 114 and the engaging teeth 1134 of the rack segment 1131, the moving member 114 can move along the first direction X relative to the rack segment 1131, thereby driving the first adjusting member 111 to move along the first direction X relative to the rack segment 1131, and further enabling the first adjusting member 111 and the second adjusting member 113 to move in the first direction X. When the moving member 114 is in the decoupled state, the adjusting thread 1143 is disengaged from the rack segment 1131, and the movement of the moving member 114 relative to the rack segment 1131 is not restricted by the rack segment 1131, and the first adjusting member 111 is in a state where it can move rapidly relative to the second adjusting member 113.

[0062] It can be understood that after the adjusting thread 1143 of the moving member 114 disengages from the engaging teeth 1134 of the rack section 1131, the cooperation between the moving member 114 and the engaging teeth 1134 of the rack section 1131 is released. When the moving member 114 rotates, the moving member 114 does not move relative to the rack section 1131 in the first direction X, and thus does not drive the first adjusting member 111 to move relative to the rack section 1131 in the first direction X. However, in this state, the first adjusting member 111 can move freely relative to the second adjusting member 113, and medical staff can manually apply an external force to the first adjusting member 111 or the moving member 114 to control the movement of the first adjusting member 111 relative to the second adjusting member 113, so as to quickly adjust the distance between the bone osteotomy block and the fixing assembly 130.

[0063] In some embodiments, the moving member 114 can slide relative to the first adjusting member 111 between a coupled state and a decoupled state. That is, the moving member 114 can slide relative to the first adjusting member 111 so that the moving member 114 can switch between the coupled state and the decoupled state. When the second adjusting member 113 includes a rack section 1131 extending in the first direction X, the sliding direction of the moving member 114 can be substantially perpendicular to the first direction X. Specifically, the first side surface 1132 and the second side surface 1133 of the rack section 1131 are distributed on opposite sides of the rack section 1131 along the second direction Y, and the second direction Y is perpendicular to the first direction. The sliding direction of the moving member 114 relative to the first adjusting member 111 is parallel to the second direction Y, so that when the moving member 114 slides between the coupled state and the decoupled state, the adjusting thread 1143 of the moving member 114 can engage or disengage from the engaging teeth 1134 of the rack section 1131. The angle formed by the sliding direction of the moving member 114 and the first direction X can be greater than or equal to 85° and less than or equal to 95°.

[0064] Of course, it is also possible to make the sliding direction of the moving member 114 relative to the first adjusting member 111 substantially perpendicular to the first direction X and the second direction Y respectively, as long as when the moving member 114 is in the coupled state, the adjusting thread 1143 of the moving member 114 can engage with a plurality of engaging teeth 1134 of the rack section 1131, and when the moving member 114 is in the decoupled state, the adjusting thread 1143 of the moving member 114 can disengage from a plurality of engaging teeth 1134 of the rack section 1131. Among them, the angle formed by the sliding direction of the moving member 114 and the second direction Y can be greater than or equal to 85° and less than or equal to 95°.

[0065] In other embodiments, the moving member 114 can be rotated relative to the first adjusting member 111 about a fourth rotation axis between a coupled state and a decoupled state. That is, the moving member 114 rotates relative to the first adjusting member 111 about the fourth rotation axis so that the moving member 114 can be switched between the coupled state and the decoupled state. When the second adjusting member 113 includes a rack segment 1131 extending in the first direction X, the fourth rotation axis of the moving member 114 can be parallel or substantially parallel to the first direction X. Specifically, the first side surface 1132 and the second side surface 1133 of the rack segment 1131 are distributed on opposite sides of the rack segment 1131 along the second direction Y, and the second direction Y is substantially perpendicular to the first direction X. The fourth rotation axis of the moving member 114 relative to the first adjusting member 111 extends along the first direction X. When the moving member 114 rotates about the fourth rotation axis, the adjusting thread 1143 of the moving member 114 can generally approach or move away from the engaging teeth 1134 of the rack segment 1131 so that the adjusting thread 1143 of the moving member 114 engages or disengages from the engaging teeth 1134 of the rack segment 1131.

[0066] As Figure 4 and Figure 5 shown, the moving member 114 includes an inner surface 1141 that encloses a through hole 1142 extending in the first direction X. An adjusting thread 1143 is provided on the inner surface 1141 of the moving member 114. That is, the adjusting thread 1143 of the moving member 114 is an internal thread provided in the through hole 1142. The rack segment 1131 of the second adjusting member 113 passes through the through hole 1142. By moving the moving member 114 a certain distance relative to the rack segment 1131 in the direction from the second side surface 1133 to the first side surface 1132, the moving member 114 can be switched to the coupled state, and the adjusting thread 1143 of the moving member 114 engages with the engaging teeth 1134 of the rack segment 1131. By moving the moving member 114 a certain distance relative to the rack segment 1131 in the direction from the first side surface 1132 to the second side surface 1133, the moving member 114 can be switched to the decoupled state, and the adjusting thread 1143 of the moving member 114 disengages from the engaging teeth 1134 of the rack segment 1131.

[0067] In some embodiments, the first side surface 1132 of the rack segment 1131 is a smooth surface. Thus, when the moving member 114 is in the decoupled state and the first adjusting member 111 moves relative to the second adjusting member 113 along the first direction X, there is no problem that the adjusting thread 1143 of the moving member 114 gets stuck with the protrusions or grooves on the first side surface 1132 of the rack segment 1131.

[0068] Of course, the first side surface 1132 of the rack segment 1131 can also be a rough surface, a surface with minute protrusions or grooves, or the edges of the protrusions or grooves on the first side surface 1132 have a gentle transition. When the first adjusting member 111 moves relative to the second adjusting member 113 in the first direction X, it is only necessary that the adjusting thread 1143 of the moving member 114 does not get stuck with the first side surface 1132 after coming into contact with it. Alternatively, the first side surface 1132 of the rack segment 1131 can also be a non-smooth surface provided with protrusions or grooves, for example, provided with a protrusion or groove structure. In this case, when the first adjusting member 111 moves relative to the second adjusting member 113 in the first direction X, it is only necessary to keep a certain distance between the adjusting thread 1143 of the moving member 114 and the first side surface 1132 of the rack segment 1131.

[0069] In other embodiments, the outer peripheral surface of the moving member 114 can be provided with an adjusting thread 1143, that is, the adjusting thread 1143 on the moving member 114 is an external thread. In this case, when the moving member 114 is in the coupled state, the moving member 114 can be located on one side of the rack segment 1131 in the direction from the first side surface 1132 to the second side surface 1133, and the adjusting thread 1143 of the moving member 114 meshes with the engaging teeth 1134 of the rack segment 1131. By rotating the moving member 114 relative to the rack segment 1131 of the second adjusting member 113, the first adjusting member 111 is driven to move relative to the second adjusting member 113 in the first direction X. When it is necessary to enable the first adjusting member 111 and the second adjusting member 113 to move relative to each other quickly, the moving member 114 can be moved or rotated in a direction away from the second side surface 1133 of the rack segment 1131 to the decoupled state, so that the engaging teeth 1134 of the moving member 114 and the rack segment 1131 are disengaged, thereby enabling the first adjusting member 111 and the second adjusting member 113 to move relative to each other quickly.

[0070] Specifically, the moving member 114 can be located on one side of the rack section 1131 in the direction from the first side surface 1132 to the second side surface 1133, and the adjusting thread 1143 of the moving member 114 extends spirally in the first direction X. The moving member 114 can move relative to the first adjusting member 111 in the second direction Y, so that the moving member 114 can move between a coupled state and a decoupled state. Among them, the moving member 114 can move relative to the rack section 1131 in the direction from the second side surface 1133 to the first side surface 1132 to the coupled state, and the moving member 114 can move relative to the rack section 1131 in the direction from the first side surface 1132 to the second side surface 1133 to the decoupled state. When the moving member 114 is in the coupled state, the moving member 114 can rotate relative to the first adjusting member 111 and the rack section 1131 about the fifth rotation axis, so as to drive the first adjusting member 111 to move relative to the second adjusting member 113 in the first direction X through the cooperation between the adjusting thread 1143 of the moving member 114 and the engaging tooth 1134 of the rack section 1131. The fifth rotation axis is parallel to the first direction X.

[0071] As Figure 4 and Figure 5 shown, the distance adjusting assembly 110 further includes a connecting member 115 movably mounted on the first adjusting member 111, and the moving member 114 is movably connected to the connecting member 115. When the connecting member 115 moves relative to the first adjusting member 111, it can drive the moving member 114 to move relative to the first adjusting member 111 together. Or, when the moving member 114 switches between the coupled state and the decoupled state relative to the first adjusting member 111 and the second adjusting member 113, it can drive the connecting member 115 to move relative to the first adjusting member 111 and the second adjusting member 113 together, so that the connecting member 115 guides the switching of the moving member 114 between the coupled state and the decoupled state, and enables the moving member 114 to accurately and stably switch between the coupled state and the decoupled state. Moreover, by movably connecting the moving member 114 to the connecting member 115, when the moving member 114 is in the coupled state, the moving member 114 can move relative to the connecting member 115, so that the moving member 114 cooperates with the second adjusting member 113 to drive the first adjusting member 111 to move relative to the second adjusting member 113, thereby adjusting the distance between the tibial osteotomy block 150 and the fixing assembly 130.

[0072] It should be noted that the moving member 114 can be movable relative to the connecting member 115 in the coupled state, or the moving member 114 can be movable relative to the connecting member 115 in both the coupled state and the decoupled state. Additionally, the distance adjustment assembly 110 may not include the connecting member 115, and the moving member 114 is directly movably mounted on the first adjusting member 111, and the moving member 114 can move between the coupled state and the decoupled state relative to the first adjusting member 111. Meanwhile, when the moving member 114 is in the coupled state, it can also be coupled to the second adjusting member 113 and can move relative to the first adjusting member 111 and the second adjusting member 113 to drive the first adjusting member 111 to move relative to the second adjusting member 113.

[0073] In some embodiments, the connecting member 115 can move relative to the first adjusting member 111 to guide the switching of the moving member 114 between the coupled state and the decoupled state. Thus, the moving member 114 can quickly and accurately switch between the coupled state and the decoupled state.

[0074] The connecting member 115 can rotate or move relative to the first adjusting member 111 to guide the movement of the moving member 114 between the coupled state and the decoupled state, which can be specifically determined according to the movement mode of the moving member 114 between the coupled state and the decoupled state. For example: when the moving member 114 slides relative to the first adjusting member 111 to switch between the coupled state and the decoupled state, the moving member 114 can be made to slide relative to the first adjusting member 111 to guide the sliding of the moving member 114 between the coupled state and the decoupled state. When the moving member 114 rotates relative to the first adjusting member 111 to switch between the coupled state and the decoupled state, the moving member 114 can be made to rotate relative to the first adjusting member 111 to guide the rotation of the moving member 114 between the coupled state and the decoupled state.

[0075] In some embodiments, the moving member 114 is rotatably connected to the connecting member 115 and can rotate relative to the first adjusting member 111 and the second adjusting member 113 when the moving member 114 is in a coupled state, so as to drive the relative movement of the first adjusting member 111 and the second adjusting member 113. When the first adjusting member 111 and the second adjusting member 113 move relative to each other in the first direction X, the moving member 114 is rotatably connected to the connecting member 115 and can rotate relative to the first adjusting member 111 and the second adjusting member 113 when the moving member 114 is in a coupled state, so as to drive the first adjusting member 111 to move relative to the second adjusting member 113 along the first direction X. Among them, the moving member 114 can be made to rotate relative to the connecting member 115 about a fifth rotation axis, and the fifth rotation axis is parallel to the first direction X. Of course, the fifth rotation axis can also be arranged substantially perpendicular to the first direction X, as long as when the moving member 114 is in a coupled state and rotates relative to the connecting member 115 about the fifth rotation axis, it can be coupled with the second adjusting member 113 and the moving member 114 can move relative to the first adjusting member 111 and the second adjusting member 113, so as to drive the relative movement of the first adjusting member 111 and the second adjusting member 113.

[0076] As Figure 4 and Figure 5 shown, the moving member 114 is located on one side of the connecting member 115 along the first direction X. Among them, a first mounting hole 1144 can be provided on the side of the moving member 114 facing the connecting member 115, and a first connecting portion 1151 can be protruded on the side of the connecting member 115 facing the moving member 114. By inserting the first connecting portion 1151 into the first mounting hole 1144, the moving member 114 is rotatably connected to the connecting member 115. Specifically, the first mounting hole 1144 of the moving member 114 extends along the first direction X, the first connecting portion 1151 of the connecting member 115 extends along the first direction X, and the outer diameter of the first connecting portion 1151 is substantially the same as the inner diameter of the first mounting hole 1144. Thus, after the first connecting portion 1151 is inserted into the first mounting hole 1144, the first connecting portion 1151 can rotate in the first mounting hole 1144 to realize the rotational connection between the moving member 114 and the connecting member 115. Alternatively, a second connecting portion can be protruded on the side of the moving member 114 facing the connecting member 115, and a second mounting hole can be provided on the side of the connecting member 115 facing the moving member 114. The second connecting portion is inserted into the second mounting hole to rotatably connect the moving member 114 to the connecting member 115. Among them, the second connecting portion of the moving member 114 can be made to extend along the first direction X, the second mounting hole of the connecting member 115 also extends along the first direction X, and the outer diameter of the second connecting portion is substantially the same as the inner diameter of the second mounting hole. Thus, after the second connecting portion is inserted into the second mounting hole, the second connecting portion can rotate in the second mounting hole to realize the rotational connection between the moving member 114 and the connecting member 115.

[0077] Of course, the moving member 114 and the connecting member 115 can also be rotatably connected in other ways, as long as when the moving member 114 is in the coupled state, it can contact the second adjusting member 113 and the moving member 114 can move relative to the second adjusting member 113 to drive the first adjusting member 111 to move relative to the second adjusting member 113. In addition, the moving member 114 can also be slidably or otherwise movably connected to the connecting member 115, specifically depending on the way the moving member 114 drives the first adjusting member 111 to move relative to the second adjusting member 113 in the coupled state.

[0078] In some embodiments, the connecting member 115 is slidably mounted on the first adjusting member 111, so that when the moving member 114 switches between the coupled state and the decoupled state relative to the first adjusting member 111, the connecting member 115 can guide the switching of the moving member 114 between the coupled state and the decoupled state. Specifically, as Figure 4 and Figure 5 shown, a first sliding groove 1116 can be provided in the first adjusting member 111, and the connecting member 115 includes a first sliding portion 1152. The first sliding portion 1152 of the connecting member 115 is slidably mounted in the first sliding groove 1116 of the first adjusting member 111, so that the connecting member 115 is slidably mounted on the first adjusting member 111. The sliding direction of the connecting member 115 relative to the first adjusting member 111 is consistent with the extending direction of the first sliding groove 1116. For example: if the extending direction of the first sliding groove 1116 is substantially perpendicular to the first direction X, then after the first sliding portion 1152 of the connecting member 115 is slidably mounted in the first sliding groove 1116 of the first adjusting member 111, the connecting member 115 can slide relative to the first adjusting member 111 along the extending direction of the first sliding groove 1116, that is, the sliding direction of the connecting member 115 relative to the first adjusting member 111 is substantially perpendicular to the first direction X. The angle formed by the sliding direction of the connecting member 115 relative to the first adjusting member 111 and the first direction X can be greater than or equal to 85° and less than or equal to 95°.

[0079] The angle formed by the extending direction of the first sliding groove 1116 and the first direction X can be determined according to the moving direction of the moving member 114 relative to the first adjusting member 111 when the moving member 114 moves between the coupled state and the decoupled state. In some preferred embodiments, the extending direction of the first sliding groove 1116 can be parallel to the second direction Y, so that the connecting member 115 can slide relative to the first adjusting member 111 along the second direction Y to guide the movement of the moving member 114.

[0080] Continue to refer to Figure 4 and Figure 5, the first adjusting member 111 includes a mounting base 1112, and the moving member 114 is movably connected to the mounting base 1112, so that the moving member 114 can switch between a coupled state and a decoupled state relative to the first adjusting member 111. When the distance adjusting assembly 110 includes a connecting member 115, the connecting member 115 can be movably connected to the mounting base 1112, so that the moving member 114 is indirectly movably connected to the mounting base 1112 and can switch between a coupled state and a decoupled state. Wherein, the first adjusting member 111 includes a sleeve portion 1111, the sleeve portion 1111 is connected to the mounting portion 1113, the sleeve portion 1111 extends along the first direction X, and at least part of the sleeve portion 1111 is sleeved on the second adjusting member 113, so that the sleeve portion 1111 and the mounting base 1112 of the first adjusting member 111 can move relative to the second adjusting member 113 in the first direction X.

[0081] When the second adjusting member 113 includes a rack section 1131, at least part of the sleeve portion 1111 is sleeved on the rack section 1131, so that the sleeve portion 1111 and the mounting base 1112 can move relative to the rack section 1131 along the first direction X, and further the sleeve portion 1111 and the mounting base 1112 of the first adjusting member 111 can move relative to the second adjusting member 113 in the first direction X. The connecting member 115 is connected to the mounting base 1112, the mounting assembly 120 is connected to the sleeve portion 1111, and the sleeve portion 1111 and the mounting base 1112 can move relative to the second adjusting member 113 to adjust the distance between the tibial osteotomy block 150 and the fixing assembly 130.

[0082] Wherein, the mounting base 1112 includes a mounting portion 1113, and the moving member 114 is movably connected to the mounting portion 1113 of the mounting base 1112. When the distance adjusting assembly 110 includes a connecting member 115, the connecting member 115 is movably connected to the mounting portion 1113 of the mounting base 1112. The connecting member 115 and the mounting portion 1113 of the mounting base 1112 are arranged in sequence along the first direction X. A first chute 1116 is formed on one side of the mounting portion 1113 facing the connecting member 115, and the first sliding portion 1152 of the connecting member 115 is slidably mounted in the first chute 1116 of the mounting portion 1113, so that the connecting member 115 is slidably connected to the mounting portion 1113.

[0083] In other embodiments, the first adjusting member 111 may also include a second sliding portion, and a second sliding groove is provided on the connecting member 115. The second sliding portion of the first adjusting member 111 is slidably mounted in the second sliding groove of the connecting member 115, so that the connecting member 115 is slidably mounted on the first adjusting member 111. Among them, the extending direction of the second sliding groove may be substantially perpendicular to the first direction X. After the second sliding portion of the first adjusting member 111 is slidably mounted in the second sliding groove of the connecting member 115, the connecting member 115 can slide relative to the first adjusting member 111 along the extending direction of the second sliding groove, that is, the sliding direction of the connecting member 115 relative to the first adjusting member 111 is substantially perpendicular to the first direction X. The included angle formed by the extending direction of the second sliding groove and the first direction X may be greater than or equal to 85° and less than or equal to 95°.

[0084] The included angle formed by the extending direction of the second sliding groove and the first direction X may be a right angle or an acute angle, which can be specifically determined according to the moving direction of the moving member 114 relative to the first adjusting member 111 when the moving member 114 moves between the coupled state and the decoupled state. In some preferred embodiments, the extending direction of the second sliding groove may be parallel to the second direction Y, so that the connecting member 115 can slide relative to the first adjusting member 111 along the second direction Y, thereby guiding the movement of the moving member 114. Among them, a second sliding groove may be formed on one side of the connecting member 115 facing the mounting portion 1113, and a second sliding portion is provided on one side of the mounting portion 1113 facing the connecting member 115. The second sliding portion of the mounting portion 1113 is slidably mounted in the second sliding groove of the connecting member 115, so that the connecting member 115 is slidably connected to the mounting portion 1113.

[0085] Such as Figure 4 and Figure 5As shown, the mounting base 1112 includes a mounting portion 1113, a limiting portion 1114, and a third connecting portion 1115. The third connecting portion 1115 connects the mounting portion 1113 and the limiting portion 1114 respectively. The mounting portion 1113 and the limiting portion 1114 are arranged in sequence along the first direction X. The moving member 114 is movably connected to the mounting portion 1113 and is located between the mounting portion 1113 and the limiting portion 1114. The limiting portion 1114 can abut against the side of the moving member 114 away from the mounting portion 1113, so as to limit the moving distance of the moving member 114 in the direction away from the mounting portion 1113. Moreover, during the movement of the moving member 114 relative to the first adjusting member 111 and the second adjusting member 113, after the moving member 114 abuts against the limiting portion 1114, a first thrust can be applied to the limiting portion 1114 to push the first adjusting member 111 to move relative to the second adjusting member 113, thereby reducing the distance between the mounting assembly 120 and the fixing assembly 130. Or, the moving member 114 directly or indirectly applies a first thrust to the mounting portion 1113 to push the first adjusting member 111 to move relative to the second adjusting member 113, thereby increasing the distance between the mounting assembly 120 and the fixing assembly 130. Among them, the moving member 114 can be slidably connected and rotatably connected to the mounting portion 1113, so that the moving member 114 can be switched between a coupled state and a decoupled state relative to the first adjusting member 111. At the same time, when the moving member 114 is in the coupled state, it can be rotatable relative to the second adjusting member 113 to drive the first adjusting member 111 to move relative to the second adjusting member 113 along the first direction X.

[0086] When the distance adjusting assembly 110 includes the connecting member 115, the mounting portion 1113, the connecting member 115, the moving member 114, and the limiting portion 1114 can be arranged in sequence along the first direction X. The connecting member 115 is movably mounted on the mounting portion 1113. The limiting portion 1114 is located on the side of the moving member 114 away from the connecting member 115. The limiting portion 1114 is used to abut against the side of the moving member 114 away from the connecting member 115 to limit the separation of the moving member 114 from the connecting member 115, so as to make the connection between the moving member 114 and the connecting member 115 more stable.

[0087] It can be understood that the limiting portion 1114 is located on the side of the moving member 114 away from the connecting member 115. Therefore, the limiting portion 1114 can abut against the side of the moving member 114 away from the connecting member 115 to limit the movement of the moving member 114 in the direction away from the connecting member 115, thereby preventing the moving member 114 from separating from the connecting member 115.

[0088] In addition, it should be noted that the third connecting portion 1115 can be directly connected or integrally provided with the mounting portion 1113 or the limiting portion 1114, or the third connecting portion 1115 can be indirectly connected to the mounting portion 1113 or the limiting portion 1114. For example Figure 4As shown, the mounting portion 1113, the third connecting portion 1115, and the limiting portion 1114 of the mounting base 1112 are integrally formed. Alternatively, as Figure 8 shown, the third connecting portion 1115 of the mounting base 1112 is a part of the sleeve portion 1111 of the first adjusting member 111, and the mounting portion 1113 and the limiting portion 1114 of the mounting base 1112 are respectively connected to the sleeve portion 1111, so that the third connecting portion 1115 is respectively connected to the mounting portion 1113 and the limiting portion 1114.

[0089] In some embodiments, as Figure 4 and Figure 5 shown, the third connecting portion 1115 of the mounting base 1112 is located on one side of the moving member 114 along the second direction Y, and the second direction Y is substantially perpendicular to the first direction X. Thus, the third connecting portion 1115 of the mounting base 1112 can extend along the circumferential direction of the moving member 114, thereby improving the structural strength of the third connecting portion 1115, and further improving the structural stability of the mounting base 1112. Wherein, the side of the moving member 114 facing away from the third connecting portion 1115 is not blocked by the third connecting portion 1115, and medical staff can operate the moving member 114 from the side of the moving member 114 facing away from the third connecting portion 1115, so that the moving member 114 can be switched between the coupled state and the decoupled state, and the moving member 114 can move relative to the first adjusting member 111 and the second adjusting member 113 when in the coupled state, so as to drive the first adjusting member 111 and the second adjusting member 113 to move relative to each other.

[0090] In some embodiments, as Figure 4 and Figure 5 shown, the connecting member 115 is provided with a through hole 1153 penetrating along the first direction X. The rack section 1131 of the second adjusting member 113 passes through the through hole 1153. Wherein, the first connecting portion 1151 is disposed around the through hole 1153. When the connecting member 115 moves relative to the first adjusting member 111 to guide the switching of the moving member 114 between the coupled state and the decoupled state, the rack section 1131 can move relative to the moving member 114 within the through hole 1153.

[0091] Figure 6 This is a schematic structural diagram of another embodiment of the tibial osteotomy positioning device provided by the embodiment of the present application. Figure 7 is Figure 6 a cross-sectional view of the tibial osteotomy positioning device in Figure 8 is Figure 7 an enlarged view of part B in Figures 6 to 8As shown, the moving member 114 includes an inner surface 1141 which encloses and forms a through hole 1142 extending along the first direction X, and the third connecting portion 1115 of the mounting seat 1112 passes through the through hole 1142 of the moving member 114. Thus, the third connecting portion 1115 is located inside the moving member 114, which can stably mount the moving member 114 on the mounting seat 1112 while the peripheral side of the moving member 114 is not blocked by the third connecting portion 1115, enabling medical staff to operate the moving member 114 from any angle, making it more convenient for medical staff to use.

[0092] As Figure 4 and Figure 5 As shown, the distance adjustment assembly 110 may further include a first elastic member 116 connected to the first adjusting member 111, and the first elastic member 116 is used to switch the moving member 114 from the decoupled state to the coupled state. Thus, when the medical staff manually pushes the moving member 114 to the decoupled state and makes the first adjusting member 111 move a predetermined distance relative to the second adjusting member 113 and then releases the hand, the moving member 114 will automatically return to the coupled state coupled with the second adjusting member 113 under the action of the first elastic member 116, facilitating the medical staff to operate the moving member 114 and enabling the moving member 114 to drive the first adjusting member 111 to move relative to the second adjusting member 113.

[0093] In some embodiments, the first elastic member 116 is connected to the connecting member 115 to drive the connecting member 115 to drive the moving member 114 to move, so that the moving member 114 switches from the decoupled state to the coupled state. Among them, the first elastic member 116 is used to apply a first elastic force to the connecting member 115, and the first elastic force is used to push the connecting member 115 to move, so that the connecting member 115 drives the moving member 114 to switch from the decoupled state to the coupled state.

[0094] Specifically, the connecting member 115 is slidably mounted on the first adjusting member 111 along the second direction Y, so that the connecting member 115 is slidably connected to the first adjusting member 111 along the second direction Y. The first elastic member 116 can be located on one side of the connecting member 115 along the second direction Y, and the first elastic member 116 abuts against one side of the connecting member 115 along the second direction Y, and the second direction Y is substantially perpendicular to the first direction X.

[0095] The third connecting portion 1115 of the mounting base 1112 is located on one side of the connecting member 115 along the second direction Y. The first elastic member 116 is located between the connecting member 115 and the third connecting portion 1115, and one end of the first elastic member 116 abuts against the third connecting portion 1115, and the other end of the first elastic member 116 abuts against the connecting member 115, so as to apply an elastic force along the second direction Y to the connecting member 115, causing the connecting member 115 to move in the second direction Y away from the third connecting portion 1115, so as to drive the moving member 114 to switch from the decoupled state to the coupled state. The first elastic member 116 can be a spring, elastic silica gel, torsion spring, etc., and is not limited here.

[0096] It should be noted that the above installation method of the first elastic member 116 is only one embodiment of the various installation methods of the first elastic member 116. According to different factors such as the structures of the connecting member 115 and the mounting base 1112, the movement mode of the connecting member 115, and the type of the first elastic member 116, various different installation methods can be adopted for the first elastic member 116, as long as the first elastic member 116 can provide a first elastic force for the connecting member 115, so that the connecting member 115 can drive the moving member 114 to move from the decoupled state to the coupled state. The first elastic force can be a thrust or a pulling force.

[0097] In other embodiments, the first elastic member 116 can also be used to connect to the moving member 114 to drive the moving member 114 to move, so that the moving member 114 switches from the decoupled state to the coupled state. Among them, the first elastic member 116 is used to apply a first elastic force to the moving member 114, so that the moving member 114 moves from the decoupled state to the coupled state.

[0098] Specifically, the moving member 114 is slidably connected to the first adjusting member 111 along the second direction Y. The first elastic member 116 can be located on one side of the moving member 114 along the second direction Y, and the first elastic member 116 abuts against one side of the moving member 114 along the second direction Y. The second direction Y is substantially perpendicular to the first direction X. The third connecting portion 1115 of the mounting base 1112 is located on one side of the moving member 114 along the second direction Y. The first elastic member 116 is located between the moving member 114 and the third connecting portion 1115, and one end of the first elastic member 116 abuts against the third connecting portion 1115, and the other end of the first elastic member 116 abuts against the moving member 114, so as to apply an elastic force along the second direction Y to the moving member 114, causing the moving member 114 to move from the decoupled state to the coupled state in the second direction Y away from the third connecting portion 1115.

[0099] When the moving member 114 rotates relative to the first adjusting member 111 and the second adjusting member 113 in the decoupled state to drive the first adjusting member 111 to move relative to the second adjusting member 113, an abutting member (not shown in the figure) can be provided between the first elastic member 116 and the moving member 114. One side of the abutting member is in sliding abutment with the moving member 114, and the other side of the abutting member is in abutment with the other end of the first elastic member 116, so as to play a transitional role between the first elastic member 116 and the moving member 114 through the abutting member, enabling the other end of the first elastic member 116 to apply the first elastic force to the moving member 114 more stably, and preventing the moving member 114 from sliding relative to the first elastic member 116, resulting in the other end of the first elastic member 116 being unable to stably abut against the moving member 114.

[0100] As Figures 1 to 3 shown, the mounting assembly 120 includes a locking member 121 and a fixing portion 122. The locking member 121 and the fixing portion 122 are used for detachably connecting with the tibial osteotomy block 150, so that the mounting assembly 120 is detachably connected with the tibial osteotomy block 150.

[0101] Figure 14 For Figure 1 another perspective view of the tibial osteotomy positioning device in the middle. Figure 16 For Figure 14 a cross-sectional view of the tibial osteotomy positioning device in the middle, which is sectioned along the first direction X. Figure 17 For Figure 16 an enlarged view of the E position in the middle. As Figure 14 、 Figure 16 and Figure 17 shown, the fixing portion 122 of the mounting assembly 120 is connected to the first adjusting member 111 or the second adjusting member 113, and the locking member 121 is movably connected to the fixing portion 122. Among them, when the mounting assembly 120 is connected to the first adjusting member 111, the fixing portion 122 of the mounting assembly 120 is connected to the first adjusting member 111; when the mounting assembly 120 is connected to the second adjusting member 113, the fixing portion 122 of the mounting assembly 120 is connected to the second adjusting member 113. The locking member 121 and the fixing portion 122 can be directly connected or indirectly connected through other structures, as long as the locking member 121 can move relative to the fixing portion 122.

[0102] In some embodiments, the locking member 121 can move relative to the fixing portion 122 between a first locking position and a first unlocking position. When the locking member 121 is in the first locking position, the locking member 121 and the fixing portion 122 can be connected to the tibial osteotomy block 150 to lock the locking member 121, the fixing portion 122, and the tibial osteotomy block 150 together. When the locking member 121 is in the first unlocking position, the locking state of the locking member 121, the fixing portion 122, and the tibial osteotomy block 150 is released, and the tibial osteotomy block 150 can be separated from the fixing portion 122 and the locking member 121. Thus, by moving the locking member 121 relative to the fixing portion 122 between the first locking position and the first unlocking position, the fixing assembly 130 can be quickly connected to and separated from the tibial osteotomy block 150, and the operation is very convenient.

[0103] Among them, the locking member 121 can be rotated relative to the fixing portion 122 between the first locking position and the first unlocking position, or the locking member 121 can be slid relative to the fixing portion 122 between the first locking position and the first unlocking position, as long as the locking member 121 can be switched between the first locking position and the first unlocking position relative to the fixing portion 122.

[0104] As Figures 17 to 20 shown, the tibial osteotomy block 150 can include a first insertion hole 151. When the locking member 121 is in the first unlocking position, the locking member 121 and the fixing portion 122 can be inserted into the same first insertion hole 151 of the tibial osteotomy block 150 or taken out from the same first insertion hole 151 of the tibial osteotomy block 150, so that the locking member 121 and the fixing portion 122 of the mounting assembly 120 are in a separable state from the tibial osteotomy block 150. When the locking member 121 and the fixing portion 122 are inserted into the same first insertion hole 151 and the locking member 121 is in the first locking position, the locking member 121 can be hooked to the tibial osteotomy block 150, so that the locking member 121 and the fixing portion 122 of the mounting assembly 120 are locked together with the tibial osteotomy block 150, realizing the common locking of the locking member 121, the fixing portion 122, and the tibial osteotomy block 150.

[0105] In some embodiments, the locking member 121 may include a hooking portion 1211, which is configured to be inserted into the first jack 151 of the tibial osteotomy block 150 and hook with the tibial osteotomy block 150, so that the locking member 121 and the fixing portion 122 are locked together with the tibial osteotomy block 150. Specifically, when the hooking portion 1211 and the fixing portion 122 of the locking member 121 are inserted into the same first jack 151 and the locking member 121 is in the first locking position, the hooking portion 1211 can hook with the tibial osteotomy block 150, thereby locking the locking member 121, the fixing portion 122 and the tibial osteotomy block 150 together. Among them, the hooking portion 1211 can hook with the edge of the first jack 151 or other parts of the tibial osteotomy block 150, as long as the hooking portion 1211 cannot withdraw from the first jack 151.

[0106] When the locking member 121 is in the first unlocking position, the hooking portion 1211 and the fixing portion 122 can be inserted into the same first jack 151 of the tibial osteotomy block 150 or taken out from the same first jack 151 of the tibial osteotomy block 150. At this time, the hooking portion 1211 of the locking member 121 releases the tibial osteotomy block 150. By taking out the hooking portion 1211 and the fixing portion 122 from the same first jack 151 of the tibial osteotomy block 150, the locking member 121 and the fixing portion 122 of the mounting assembly 120 can be separated from the tibial osteotomy block 150.

[0107] In some embodiments, as Figure 17 and Figure 18 shown, the mounting assembly 120 further includes a second elastic member 123 respectively connected to the fixing portion 122 and the locking member 121. The second elastic member 123 is configured to apply a second elastic force to the locking member 121 to move the locking member 121 from the first unlocking position to the first locking position. Thus, when a medical staff needs to connect the mounting assembly 120 with the tibial osteotomy block 150, an acting force can be applied to the locking member 121 to move the locking member 121 from the first locking position to the first unlocking position. After moving the fixing portion 122 and the locking member 121 relative to the tibial osteotomy block 150 to a predetermined position and then releasing the locking member 121, the locking member 121 automatically returns to the first locking position under the action of the second elastic member 123, so that the locking member 121 and the fixing portion 122 are locked together with the tibial osteotomy block 150, and the operation is very convenient. Specifically, the locking member 121 is rotatably connected to the fixing portion 122 so that the locking member 121 can rotate relative to the fixing portion 122 between the first locking position and the first unlocking position. The sixth rotation axis of the locking member 121 relative to the fixing portion 122 is substantially perpendicular to the first direction X. The included angle formed by the sixth rotation axis of the locking member 121 relative to the fixing portion 122 and the first direction X is greater than or equal to 80° and less than or equal to 95°.

[0108] In a preferred embodiment, the sixth rotation axis of the locking member 121 relative to the fixed portion 122 is perpendicular to the first direction X. A second elastic member 123 is disposed between the fixed portion 122 and the locking member 121. One end of the second elastic member 123 abuts against the fixed portion 122, and the other end of the second elastic member 123 abuts against the locking member 121, thereby applying a second elastic force to the locking member 121. The second elastic member 123 may include a spring, a torsion spring, an elastic silicone, or any elastic structure capable of applying a second elastic force to the locking member 121.

[0109] In other embodiments, as Figures 9 to 13 shown, the tibial osteotomy block 150 is provided with an insertion post 152, and the fixed portion 122 of the mounting assembly 120 is formed with a second insertion hole 1221 for inserting the insertion post 152 of the tibial osteotomy block 150.

[0110] When the locking member 121 is in the first locking position, the locking member 121 is engaged with the insertion post 152 to restrict the insertion post 152 from withdrawing from the second insertion hole 1221, thereby locking the locking member 121, the fixed portion 122, and the tibial osteotomy block 150 together; when the locking member 121 is in the first unlocking position, the locking member 121 releases the insertion post 152, and the insertion post 152 can be inserted into or withdrawn from the second insertion hole 1221, so that the fixed portion 122 of the mounting assembly 120 and the locking member 121 can be separated from the tibial osteotomy block 150.

[0111] Specifically, a first engaging groove 1521 may be formed on the outer peripheral surface of the insertion post 152 of the tibial osteotomy block 150, and the locking member 121 includes a first engaging portion 1212. When the locking member 121 is in the first locking position, the first engaging portion 1212 is inserted into the first engaging groove 1521 to restrict the insertion post 152 from withdrawing from the second insertion hole 1221, thereby locking the locking member 121, the fixed portion 122, and the tibial osteotomy block 150 together. When the locking member 121 is in the first unlocking position, the first engaging portion 1212 withdraws from the first engaging groove 1521, and the insertion post 152 can be inserted into or withdrawn from the second insertion hole 1221, so that the fixed portion 122 of the mounting assembly 120 and the locking member 121 can be separated from the tibial osteotomy block 150.

[0112] Specifically, the fixed portion 122 is formed with a mounting groove 1222. The extending direction of the mounting groove 1222 intersects with the extending direction of the second insertion hole 1221, and the mounting groove 1222 communicates with the second insertion hole 1221. The locking member 121 is slidably mounted in the mounting groove 1222 along the extending direction of the mounting groove 1222. A locking hole 1213 is formed in the locking member 121 and penetrates along the extending direction of the second insertion hole 1221, and a first engaging portion 1212 protrudes in the locking hole 1213.

[0113] When the locking member 121 is in the first locking position, the insertion post 152 of the tibial osteotomy block 150 is inserted into the second insertion hole 1221 and the locking hole 1213, and the first engaging portion 1212 is inserted into the first engaging groove 1521 of the insertion post 152, thereby restricting the insertion post 152 from withdrawing from the second insertion hole 1221. When the locking member 121 is in the first unlocking position, the first engaging portion 1212 withdraws from the first engaging groove 1521 of the insertion post 152, and the first engaging portion 1212 does not restrict the movement of the insertion post 152 in the extending direction of the second insertion hole 1221. Therefore, the insertion post 152 of the tibial osteotomy block 150 can withdraw from the second insertion hole 1221.

[0114] In other embodiments, the insertion post 152 may also include a second engaging portion, and the locking member 121 is formed with a second engaging groove. When the locking member 121 is in the first locking position, the second engaging portion is inserted into the second engaging groove to restrict the insertion post 152 from withdrawing from the second insertion hole 1221, thereby jointly locking the locking member 121, the fixing portion 122, and the tibial osteotomy block 150. When the locking member 121 is in the first unlocking position, the second engaging portion withdraws from the second engaging groove, and the insertion post 152 can be inserted into or withdrawn from the second insertion hole 1221, so that the fixing portion 122 and the locking member 121 of the mounting assembly 120 can be separated from the tibial osteotomy block 150.

[0115] Specifically, the fixing portion 122 is formed with a mounting groove 1222. The extending direction of the mounting groove 1222 intersects with the extending direction of the second insertion hole 1221, and the mounting groove 1222 communicates with the second insertion hole 1221. The locking member 121 is slidably mounted in the mounting groove 1222 along the extending direction of the mounting groove 1222. A locking hole 1213 penetrating along the extending direction of the second insertion hole 1221 is formed in the locking member 121, and a second engaging groove is formed in the inner peripheral wall of the locking hole 1213.

[0116] When the locking member 121 is in the first locking position, the insertion post 152 of the tibial osteotomy block 150 is inserted into the second insertion hole 1221 and the locking hole 1213, and the second engaging portion is inserted into the second engaging groove, thereby restricting the insertion post 152 from withdrawing from the second insertion hole 1221. When the locking member 121 is in the first unlocking position, the second engaging portion withdraws from the second engaging groove, so that the movement of the insertion post 152 in the extending direction of the second insertion hole 1221 is not restricted. Therefore, the insertion post 152 of the tibial osteotomy block 150 can withdraw from the second slot.

[0117] In some embodiments, such as Figures 11 to 13As shown, the fixing part 122 is formed with a positioning hole 1223, and the tibial osteotomy block 150 includes a positioning post 153. During the process of inserting the insertion post 152 of the tibial osteotomy block 150 into the second jack 1221 of the fixing part 122, the positioning post 153 of the tibial osteotomy block 150 is used to be inserted into the positioning hole 1223 of the fixing part 122 to position the relative positions of the tibial osteotomy block 150 and the fixing part 122. The positioning hole 1223 and the second jack 1221 are respectively formed with openings on the same side of the fixing part 122, so that when the insertion post 152 of the tibial osteotomy block 150 is inserted into the second jack 1221 of the fixing part 122, the positioning post 153 of the tibial osteotomy block 150 can be inserted into the positioning hole 1223 of the fixing part 122.

[0118] Among them, the number of positioning holes 1223 on the fixing part 122 can be multiple, and the number of positioning posts 153 of the tibial osteotomy block 150 is also multiple, and the number of the multiple positioning posts 153 is equal to and corresponds to the number of the multiple positioning holes 1223 one by one. The multiple positioning holes 1223 are respectively formed with openings on the same side of the fixing part 122. The multiple positioning holes 1223 are distributed on both sides of the second jack 1221, or the multiple positioning holes 1223 are sequentially distributed along the circumferential direction of the second jack 1221. At least two of the positioning holes 1223 can be formed with different opening shapes or sizes on the same side of the fixing part 122.

[0119] As Figures 14 to 19 shown, the posterior tilt angle adjusting assembly 140 includes a base 141, a first transmission member 142 and an adjusting mechanism 143. The base 141 and the adjusting mechanism 143 are respectively connected to the distance adjusting assembly 110, and the adjusting mechanism 143 is connected to the base 141 through the first transmission member 142. The mounting assembly 120 can be mounted on the base 141. The adjusting mechanism 143 is used to drive the base 141 to rotate through the first transmission member 142 to adjust the posterior tilt angle α of the mounting assembly 120. The tibial osteotomy block 150 will rotate together with the mounting assembly 120, so as to realize the adjustment of the posterior tilt angle of the tibial osteotomy block 150. Among them, the adjusting mechanism 143 of the posterior tilt angle adjusting assembly 140 includes an adjusting knob 1431, and the adjusting knob 1431 is connected to the base through the first transmission member 142. The adjusting knob 1431 can drive the base 141 to rotate through the first transmission member 142 to adjust the posterior tilt angle of the mounting assembly 120. In addition, when the tibial osteotomy positioning device 100 does not include the mounting assembly 120, the base 141 can be connected to the tibial osteotomy block 150. The adjusting mechanism 143 is used to drive the base 141 to rotate through the first transmission member 142 to adjust the posterior tilt angle of the tibial osteotomy block 150.

[0120] As Figures 16 to 18As shown, the distance adjustment assembly 110 includes a positioning member 112. The positioning member 112 is provided on the first adjustment member 111, and the base 141 is rotatably connected to the first adjustment member 111. Of course, the positioning member 112 can also be provided on the second adjustment member 113, and the base 141 can be rotatably connected to the second adjustment member 113. The positioning member 112 is used to install the adjustment mechanism 143, so that the adjustment mechanism 143 is connected to the distance adjustment assembly 110.

[0121] In some embodiments, the adjustment knob 1431 of the adjustment mechanism 143 is installed on the positioning member 112. The positioning member 112 may include a first positioning portion 1121, and the adjustment knob 1431 may include a second positioning portion 1432. Moreover, the number of at least one of the first positioning portion 1121 and the second positioning portion 1432 is multiple, and they are sequentially distributed around the axis L2. The adjustment knob 1431 is movably installed on the positioning member 112. During the movement of the adjustment knob 1431 relative to the positioning member 112, the second positioning portion 1432 can move along with the adjustment knob 1431 and switch between two states of cooperation and disengagement with the first positioning portion 1121 of the positioning member 112. Among them, the number of both the first positioning portion 1121 and the second positioning portion 1432 can be multiple, or only the number of the first positioning portion 1121 can be multiple, or only the number of the second positioning portion 1432 can be multiple. When the number of the first positioning portion 1121 is multiple, the multiple first positioning portions 1121 are sequentially distributed around the axis L2. When the number of the second positioning portion 1432 is multiple, the multiple second positioning portions 1432 are sequentially distributed around the axis L2.

[0122] The adjustment knob 1431 can move relative to the positioning member 112 between a second locking position (as shown in Figure 17 ) and a second unlocking position (as shown in Figure 18 ). When the adjustment knob 1431 is in the second unlocking position, the second positioning portion 1432 of the adjustment knob 1431 is disengaged from the first positioning portion 1121 of the positioning member 112, so that the adjustment knob 1431 can rotate relative to the positioning member 112 around the axis L2, driving the first transmission member 142 to push the base 141 to rotate, so as to adjust the rear inclination angle α of the mounting assembly 120. When the adjustment knob 1431 is in the second locking position, the first positioning portion 1121 cooperates with any one of the multiple second positioning portions 1432, or the second positioning portion 1432 cooperates with any one of the multiple first positioning portions 1121 to limit the rotation of the adjustment knob 1431 around the axis L2. At this time, the position of the adjustment knob 1431 relative to the positioning member 112 in the circumferential direction of the axis L2 remains stable, so that the angle of the base 141 remains stable, and further the rear inclination angle α of the mounting assembly 120 remains stable.

[0123] When the adjustment knob 1431 drives the base 141 to rotate through the first transmission member 142 and adjusts the posterior tilt angle of the tibial osteotomy block 150 to an appropriate angle, the adjustment knob 1431 can be moved to the second locking position to lock the adjustment knob 1431 with the positioning member 112, restricting the adjustment knob 1431 from further rotating, so as to keep the posterior tilt angle of the tibial osteotomy block 150 stable. When it is necessary to adjust the posterior tilt angle of the tibial osteotomy block 150 again, just move the adjustment knob 1431 from the second locking position to the second unlocking position, and the adjustment knob 1431 can drive the base 141 to rotate again through the first transmission member 142 to adjust the posterior tilt angle of the tibial osteotomy block 150, and the operation is very convenient.

[0124] In some embodiments, the adjustment knob 1431 can slide relative to the positioning member 112 between the second locking position and the second unlocking position, and the sliding direction of the adjustment knob 1431 relative to the positioning member 112 is substantially parallel to the axis L2. Of course, it is also possible to make the adjustment knob 1431 rotatable relative to the positioning member 112 between the second locking position and the second unlocking position. As long as when the adjustment knob 1431 is in the second unlocking position, it can rotate relative to the positioning member 112 around the axis L2 to drive the first transmission member 142 to push the base 141 to rotate, and when the adjustment knob 1431 is in the second locking position, the first positioning portion 1121 cooperates with any one of the plurality of second positioning portions 1432, or the second positioning portion 1432 cooperates with any one of the plurality of first positioning portions 1121 to restrict the adjustment knob 1431 from rotating around the axis L2.

[0125] In some embodiments, as Figures 17 to 20 shown, the axis L2 of the adjustment knob 1431 of the adjustment mechanism 143 can be substantially perpendicular to the first direction X. Among them, the included angle formed by the axis L2 and the first direction X can be greater than or equal to 85° and less than or equal to 95°.

[0126] In some embodiments, as Figure 15 、 Figures 19 to 21As shown, one of the first positioning portion 1121 and the second positioning portion 1432 may include a positioning groove 1122, and the other of the first positioning portion 1121 and the second positioning portion 1432 may include a positioning projection that is inserted into the positioning groove 1122 to cooperate the first positioning portion 1121 with the second positioning portion 1432. The positioning projection exits the positioning groove 1122 to release the cooperation between the first positioning portion 1121 and the second positioning portion 1432. Among them, the number of the first positioning portions 1121 may be multiple, and each first positioning portion 1121 includes a positioning groove 1122, the number of the second positioning portions 1432 is one, and the second positioning portion 1432 includes a positioning projection. Or, the number of the first positioning portions 1121 is multiple, and each first positioning portion 1121 includes a positioning projection, the number of the second positioning portions 1432 is one, and the second positioning portion 1432 includes a positioning groove 1122. Or, the number of the first positioning portions 1121 is one, and the first positioning portion 1121 includes a positioning groove 1122, the number of the second positioning portions 1432 is multiple, and each second positioning portion 1432 includes a positioning projection. Or, the number of the first positioning portions 1121 is one, and the first positioning portion 1121 includes a positioning projection, the number of the second positioning portions 1432 is multiple, and each second positioning portion 1432 includes a positioning groove 1122.

[0127] In addition, when the adjusting knob 1431 is slidable relative to the positioning member 112 between the second unlocking position and the second locking position, when the adjusting knob 1431 slides from the second unlocking position to the second locking position, the positioning projection and the positioning groove 1122 move relative to each other along the sliding direction of the adjusting knob 1431, and the positioning projection is inserted into the positioning groove 1122, and the first positioning portion 1121 cooperates with the second positioning portion 1432. When the adjusting knob 1431 slides from the second locking position to the second unlocking position, the positioning projection and the positioning groove 1122 move relative to each other along the sliding direction of the adjusting knob 1431, and exit the positioning groove 1122, and the first positioning portion 1121 is disengaged from the second positioning portion 1432. At this time, the adjusting knob 1431 can rotate about the axis L2.

[0128] Specifically, the positioning member 112 is provided with a guiding hole 1123 penetrating along the axis L2 for the adjusting knob 1431 to be inserted and guiding the movement of the adjusting knob 1431 relative to the positioning member 112 along the axis L2. The first positioning portions 1121 are sequentially distributed along the circumferential direction of the guiding hole 1123. Each first positioning portion 1121 is respectively provided with a positioning groove 1122 on the side facing the guiding hole 1123. The positioning groove 1122 penetrates the first positioning portion 1121 along the axis L2 to facilitate the positioning projection of the second positioning portion 1432 to be inserted into any one of the positioning grooves 1122 or exit from the positioning groove 1122 when the adjusting knob 1431 moves along the axis L2 between the second locking position and the second unlocking position.

[0129] As Figures 17 to 19 shown, the adjusting mechanism 143 of the caster angle adjusting assembly 140 further includes a second transmission member 1433. The second transmission member 1433 is rotatably mounted on the positioning member 112 about an axis L2, and the second transmission member 1433 is connected to the first transmission member 142. The adjusting knob 1431 is connected to the second transmission member 1433 so that the adjusting knob 1431 drives the base 141 to rotate through the second transmission member 1433 and the first transmission member 142. Wherein, the adjusting knob 1431 is movably connected to the second transmission member 1433. The adjusting knob 1431 is configured to receive an external force and drive the second transmission member 1433 to rotate about the axis L2, thereby driving the first transmission member 142 to move and driving the base 141 to rotate.

[0130] In some embodiments, the adjusting knob 1431 is slidably connected to the second transmission member 1433 along the extending direction of the axis L2. When the adjusting knob 1431 is in the second unlocking position, it can drive the second transmission member 1433 to rotate about the axis L2 to drive the first transmission member 142 to push the base 141 to rotate. When the adjusting knob 1431 is in the second locking position, the rotation of the adjusting knob 1431 about the axis L2 is restricted by the positioning member 112, and the rotation of the second transmission member 1433 about the axis L2 is restricted by the adjusting knob 1431.

[0131] Specifically, as Figure 17 , Figure 18 , Figure 21 and Figure 22 shown, the adjusting knob 1431 and the second transmission member 1433 are sequentially distributed along the extending direction of the axis L2. A sliding protrusion 1435 protrudes from a side of the adjusting knob 1431 facing the second transmission member 1433, and the sliding protrusion 1435 extends along the axis L2. A sliding groove 1436 is formed on a side of the second transmission member 1433 facing the adjusting knob 1431, and the sliding groove 1436 extends along the axis L2. The sliding protrusion 1435 of the adjusting knob 1431 is slidably inserted into the sliding groove 1436 of the second transmission member 1433 so that the adjusting knob 1431 is slidably connected to the second transmission member 1433 along the axis L2.

[0132] Among them, the radial cross-section of the sliding protrusion 1435 can be a non-circular cross-section such as a rectangle, an ellipse, a polygon, etc. Correspondingly, the radial cross-section of the sliding groove 1436 is a non-circular cross-section such as a rectangle, an ellipse, a polygon, etc. Moreover, the radial cross-section of the sliding protrusion 1435 is adapted to the shape of the radial cross-section of the sliding groove 1436, so that when the adjustment knob 1431 rotates around the axis L2, it can drive the second transmission member 1433 to rotate around the axis L2 together. Of course, a sliding protrusion 1435 can also be protruded on the side of the second transmission member 1433 facing the adjustment knob 1431, and a sliding groove 1436 can be opened on the side of the adjustment knob 1431 facing the second transmission member 1433. By inserting the sliding protrusion 1435 of the second transmission member 1433 into the sliding groove 1436 of the adjustment knob 1431, the adjustment knob 1431 can be slidably connected to the second transmission member 1433 along the axis L2.

[0133] In some embodiments, the first transmission member 142 can move relative to the first adjustment member 111 or the second adjustment member 113 in the first direction X to drive the base 141 to rotate. Then, the adjustment knob 1431 of the adjustment mechanism 143 is used to drive the first transmission member 142 to move in the first direction X to push the base 141 to rotate relative to the first adjustment member 111 or the second adjustment member 113.

[0134] Among them, the base 141 is rotatably connected to the first adjustment member 111. The base 141 can rotate relative to the first adjustment member 111 around the first rotation axis L1 to adjust the posterior tilt angle α of the mounting assembly 120. The first rotation axis L1 is substantially perpendicular to the first direction X. The included angle formed by the first rotation axis L1 and the first direction X can be greater than or equal to 85° and less than or equal to 95°, and specifically can be determined according to the structures of the tibial osteotomy block 150 and the tibial osteotomy positioning device 100.

[0135] In other embodiments, the base 141 is rotatably connected to the second adjustment member 113. The base 141 can rotate relative to the second adjustment member 113 around the second rotation axis to adjust the posterior tilt angle α of the mounting assembly 120. Among them, the second rotation axis is substantially perpendicular to the first direction X. The included angle formed by the second rotation axis and the first direction X can be greater than or equal to 85° and less than or equal to 95°, and specifically can be determined according to the structures of the tibial osteotomy block 150 and the tibial osteotomy positioning device 100.

[0136] It should be noted that whether the positioning member 112, the base 141 of the posterior tilt adjustment assembly 140, and the adjustment knob 1431 of the adjustment mechanism 143 are connected to the first adjustment member 111 or the second adjustment member 113 depends on the specific structure of the tibia 200 osteotomy positioning device. For example: when the first adjustment member 111 of the tibia osteotomy positioning device 100 is used to connect to the mounting assembly 120 and the second adjustment member 113 is used to connect to the fixing assembly 130, the positioning member 112, the base 141 of the posterior tilt adjustment assembly 140, and the adjustment knob 1431 of the adjustment mechanism 143 are respectively connected to the first adjustment member 111; when the first adjustment member 111 of the tibia osteotomy positioning device 100 is used to connect to the fixing assembly 130 and the second adjustment member 113 is used to connect to the mounting assembly 120, the positioning member 112, the base 141 of the posterior tilt adjustment assembly 140, and the adjustment knob 1431 of the adjustment mechanism 143 are respectively connected to the second adjustment member 113.

[0137] In some embodiments, such as Figure 17 , Figure 18 and Figure 23 shown, the second transmission member 1433 of the adjustment mechanism 143 includes a drive shaft 1434. The drive shaft 1434 extends along the axis L2 and is eccentrically arranged relative to the axis L2. When the second transmission member 1433 rotates around the axis L2, the drive shaft 1434 rotates around the axis L2. The drive shaft 1434 is rotatably connected to the first transmission member 142, and the first transmission member 142 is rotatably connected to the base 141. The second transmission member 1433 is used to drive the drive shaft 1434 to rotate around the axis L2, so that the drive shaft 1434 drives the first transmission member 142 to move in the first direction X. It can be understood that since the axis L2 is substantially perpendicular to the first direction X. When the second transmission member 1433 rotates around the axis L2, the drive shaft 1434 that is eccentrically arranged relative to the axis L2 will also rotate around the axis L2. At the same time, the drive shaft 1434 will also move in the first direction X, thereby driving the first transmission member 142 to move in the first direction X, and further driving the base 141 to rotate around the first rotation axis L1.

[0138] In some embodiments, such as Figure 17 , Figure 18 , Figure 24 and Figure 25As shown, the first transmission member 142 may include a connection hole 1421, and the drive shaft 1434 is rotatably installed in the connection hole 1421, so that the drive shaft 1434 is rotatably connected to the first transmission member 142. The connection hole 1421 has a space for the drive shaft 1434 to move along the third direction Z, and the axis L2 and the first direction X are respectively substantially perpendicular to the third direction Z. Among them, the angles formed by the axis L2 and the first direction X with the third direction Z can be made greater than or equal to 85° and less than or equal to 95°. It can be understood that when the second transmission member 1433 rotates around the axis L2, the drive shaft 1434 eccentrically arranged relative to the axis L2 will also rotate around the axis L2. At the same time, the drive shaft 1434 will also have a certain movement in the third direction Z. By making the connection hole 1421 have a space for the drive shaft 1434 to move along the third direction Z, the situation where the drive shaft 1434 is stuck with the first transmission member 142 can be avoided.

[0139] Among them, the connection hole 1421 can be made into a strip-shaped hole extending along the third direction X. The width of the connection hole 1421 in the first direction X is greater than or equal to the outer diameter of the drive shaft 1434, so that the drive shaft 1434 can be inserted into the connection hole 1421 and rotate and move along the third direction Z in the connection hole 1421. In some preferred embodiments, the drive shaft 1434 can be made into a cylindrical shaft. The width of the connection hole 1421 in the first direction X is equal to the diameter of the drive shaft 1434.

[0140] In some embodiments, as Figures 17 to 19 shown, the adjusting mechanism 143 further includes a third elastic member 144, and the third elastic member 144 is used to drive the adjusting knob 1431 to slide from the second unlocking position to the second locking position. Among them, the third elastic member 144 is used to connect with the adjusting knob 1431 and apply a third elastic force to the adjusting knob 1431 to make the adjusting knob 1431 move from the second unlocking position to the second locking position. Thus, through the third elastic member 144, the adjusting knob 1431 can be stably held at the second locking position, so that the posterior tilt angle α after the fixation of the osteotomy block is kept stable.

[0141] Among them, the third elastic member 144 can be located between the adjustment knob 1431 and the second transmission member 1433, and one end of the third elastic member 144 abuts against the adjustment knob 1431, and the other end of the third elastic member 144 abuts against the second transmission member 1433, so that the third elastic member 144 can stably apply a third elastic force to the adjustment knob 1431. The third elastic member 144 can include any elastic structure such as a spring, a torsion spring, rubber, etc. that can apply a third elastic force to the adjustment knob 1431 to move the adjustment knob 1431 from the second unlocking position to the second locking position. Specifically, the third elastic member 144 is a spring. The third elastic member 144 is sleeved on the sliding protrusion 1435. One end of the third elastic member 144 abuts against the side of the adjustment knob 1431 facing the second transmission member 1433, and the other end of the third elastic member 144 abuts against the side of the second transmission member 1433 facing the adjustment knob 1431.

[0142] In some embodiments, as Figure 22 and Figure 23 shown, the second transmission member 1433 further includes an abutting portion 1437, which is used to abut against the positioning member 112 to limit the rotation angle of the second transmission member 1433 around the axis L2, so that the posterior tilt angle α of the mounting assembly 120 can be adjusted within a preset range, and further the posterior tilt angle of the tibial osteotomy block 150 can be adjusted within a preset range. Thereby avoiding the problem that the second transmission member 1433 rotates multiple turns around the axis L2, resulting in an uncertain posterior tilt angle after adjustment of the tibial osteotomy block 150.

[0143] Specifically, the abutting portion 1437 protrudes from the outer peripheral surface of the second transmission member 1433 and extends along the circumferential direction of the second transmission member 1433. The positioning member 112 has a space for the abutting portion 1437 to rotate around the axis L2, and when the abutting portion 1437 rotates forward or backward around the axis L2 to a predetermined angle, the positioning member 112 abuts against one side of the abutting portion 1437 along the circumferential direction of the second transmission member 1433 to limit the abutting portion 1437 from continuing to rotate around the axis L2.

[0144] In some embodiments, as Figure 15 、 Figure 17 and Figure 18 shown, an operation hole 1438 is formed on the side of the adjustment knob 1431 facing away from the second transmission member 1433. The operation hole 1438 is used for inserting an operating member 300, so that medical staff can drive the adjustment knob 1431 to move between the second locking position and the second unlocking position through the operating member 300, and drive the adjustment knob 1431 to drive the second transmission member 1433 to rotate. Among them, the radial cross-section of the operation hole 1438 can be a non-circular cross-section such as a polygon or an ellipse. The operating member 300 can be a screwdriver or other component that can be inserted into the operation hole 1438 and drive the adjustment knob 1431 to move.

[0145] As Figure 17 and Figure 18 shown, the mounting assembly 120 includes a locking member 121 and a fixing portion 122. The fixing portion 122 is connected to the base 141, and the locking member 121 is movably connected to the fixing portion 122. The locking member 121 can move relative to the fixing portion 122 between a first locking position and a first unlocking position. When the locking member 121 is in the first locking position, the locking member 121 and the fixing portion 122 can be connected to the tibial osteotomy block 150 to lock the locking member 121, the fixing portion 122, and the tibial osteotomy block 150 together. When the locking member 121 is in the first unlocking position, the locking of the locking member 121, the fixing portion 122, and the tibial osteotomy block 150 is released, and the tibial osteotomy block 150 can be separated from the fixing portion 122 and the locking member 121.

[0146] In some embodiments, the fixing portion 122 can be integrally provided with the base 141, so that the connection between the fixing portion 122 and the base 141 is more stable. Of course, the fixing portion 122 can also be separately provided from the base 141.

[0147] The embodiment of the present application further provides a distance adjusting assembly 110. The distance adjusting assembly 110 is used to connect the mounting assembly 120 and the fixing assembly 130 respectively to adjust the distance between the tibial osteotomy block 150 and the fixing assembly 130. The mounting assembly 120 is used to connect to the tibial osteotomy block 150, and the fixing assembly 130 is used to be fixed to the human body. The distance adjusting assembly 110 includes a first adjusting member 111, a second adjusting member 113, and a moving member 114. One of the first adjusting member 111 and the second adjusting member 113 is connected to the fixing assembly 130, and the other of the first adjusting member 111 and the second adjusting member 113 is connected to the mounting assembly 120. The first adjusting member 111 and the second adjusting member 113 can move relative to each other to adjust the distance between the tibial osteotomy block 150 and the fixing assembly 130.

[0148] The number of the moving members 114 is one. The moving member 114 is connected to the first adjusting member 111. The moving member 114 can be in a coupled state and a decoupled state. When the moving member 114 is in the coupled state, the moving member 114 is coupled to the second adjusting member 113, and the moving member can move relative to the first adjusting member 111 and the second adjusting member 113 to drive the first adjusting member 111 and the second adjusting member 113 to move relative to each other. When the moving member 114 is in the decoupled state, the moving member 114 is decoupled from the second adjusting member 113. At this time, in a state where the first adjusting member 111 and the moving member 114 remain relatively stationary, the two can move relative to the second adjusting member 113 together under the action of an external force; or, the first adjusting member 111 can drive the moving member 114 to move relative to the second adjusting member 113 together under the action of an external force.

[0149] In some embodiments, the first adjusting member 111 and the second adjusting member 113 can slide relative to each other in the first direction X to adjust the distance between the mounting assembly 120 and the fixing assembly 130 in the first direction X; the second adjusting member 113 includes a rack segment 1131 extending along the first direction X; the moving member 114 includes an adjusting thread 1143 extending along the first direction X; wherein, when the moving member 114 is in the coupled state, the adjusting thread 1143 meshes with the rack segment 1131, and the moving member 114 can rotate relative to the second adjusting member 113 to drive the first adjusting member 111 and the second adjusting member 113 to move relative to each other; when the moving member 114 is in the decoupled state, the adjusting thread 1143 disengages from the rack segment 1131.

[0150] In some embodiments, the distance adjusting assembly 110 further includes a connecting member 115 movably mounted on the first adjusting member 111. The moving member 114 is movably connected to the connecting member 115, and the connecting member 115 can move relative to the first adjusting member 111 to guide the switching of the moving member 114 between the coupled state and the decoupled state.

[0151] The structure of the distance adjusting assembly 110 provided in the embodiments of the present application may refer to the distance adjusting assembly 110 in any of the above embodiments, and will not be elaborated here.

[0152] The embodiments of the present application further provide a tibial osteotomy positioning device 100, including a mounting assembly 120 and a fixing assembly 130. The mounting assembly 120 is connected to the fixing assembly 130. The mounting assembly 120 is used to be connected to a tibial osteotomy block 150, and the fixing assembly 130 is used to be fixed to the human body; the mounting assembly 120 includes a locking member 121 and a fixing portion 122. The fixing portion 122 is connected to the fixing assembly 130, and the locking member 121 is movably connected to the fixing portion 122; the locking member 121 can move relative to the fixing portion 122 between a first locking position and a first unlocking position;

[0153] Wherein, the locking member 121 includes a hooking portion 1211. When the locking member 121 is in the first unlocking position, the hooking portion 1211 and the fixing portion 122 can be inserted into or removed from the same first jack 151 of the tibial osteotomy block 150; when the hooking portion 1211 and the fixing portion 122 are inserted into the same first jack 151 and the locking member 121 is in the first locking position, the hooking portion 1211 can be hooked to the tibial osteotomy block 150 to lock the locking member 121, the fixing portion 122 and the tibial osteotomy block 150 together; or,

[0154] Among them, the fixing part 122 is formed with a second jack 1221 for inserting the insertion column 152 of the tibial osteotomy block 150; when the locking part 121 is in the first locking position, the locking part 121 is clamped with the insertion column 152 to limit the insertion column 152 from withdrawing from the second jack 1221, so as to lock the locking part 121, the fixing part 122 and the tibial osteotomy block 150 together; when the locking part 121 is in the first unlocking position, the locking part 121 releases the insertion column 152, and the insertion column 152 can be inserted into or withdrawn from the second jack 1221.

[0155] In some embodiments, a first clamping groove 1521 is formed on the outer peripheral surface of the insertion column 152; the locking part 121 includes a first clamping part 1212; when the locking part 121 is in the first locking position, the first clamping part 1212 is inserted into the first clamping groove 1521 to limit the insertion column 152 from withdrawing from the second jack 1221; when the locking part 121 is in the first unlocking position, the first clamping part 1212 withdraws from the first clamping groove 1521, and the insertion column 152 can be inserted into or withdrawn from the second jack 1221; or,

[0156] The insertion column 152 includes a second clamping part, the locking part 121 is formed with a second clamping groove, when the locking part 121 is in the first locking position, the second clamping part is inserted into the second clamping groove to limit the insertion column 152 from withdrawing from the second jack 1221; when the locking part 121 is in the first unlocking position, the second clamping part withdraws from the second clamping groove, and the insertion column 152 can be inserted into or withdrawn from the second jack 1221.

[0157] The embodiment of the present application further provides an installation component 120, which is used to connect with a fixing component 130, the fixing component 130 is used to be fixed to the human body, and the installation component 120 is used to connect with the tibial osteotomy block 150; the installation component 120 includes a locking part 121 and a fixing part 122, the fixing part 122 is connected with the fixing component 130, and the locking part 121 is movably connected with the fixing part 122; the locking part 121 can move relative to the fixing part 122 between a first locking position and a first unlocking position;

[0158] Among them, the locking part 121 includes a hooking part 1211, when the locking part 121 is in the first unlocking position, the hooking part 1211 and the fixing part 122 can be inserted into or taken out from the same first jack 151 of the tibial osteotomy block 150; when the hooking part 1211 and the fixing part 122 are inserted into the same first jack 151 and the locking part 121 is in the first locking position, the hooking part 1211 can be hooked with the tibial osteotomy block 150 to lock the locking part 121, the fixing part 122 and the tibial osteotomy block 150 together; or,

[0159] Among them, the fixing part 122 is formed with a second jack 1221 for inserting the insertion column 152 of the tibial osteotomy block 150; when the locking member 121 is in the first locking position, the locking member 121 is clamped with the insertion column 152 to restrict the insertion column 152 from withdrawing from the second jack 1221, so as to lock the locking member 121, the fixing part 122 and the tibial osteotomy block 150 together; when the locking member 121 is in the first unlocking position, the locking member 121 releases the insertion column 152, and the insertion column 152 can be inserted into or withdrawn from the second jack 1221.

[0160] In some embodiments, a first clamping groove 1521 is formed on the outer peripheral surface of the insertion column 152; the locking member 121 includes a first clamping part 1212; when the locking member 121 is in the first locking position, the first clamping part 1212 is inserted into the first clamping groove 1521 to restrict the insertion column 152 from withdrawing from the second jack 1221; when the locking member 121 is in the first unlocking position, the first clamping part 1212 withdraws from the first clamping groove 1521, and the insertion column 152 can be inserted into or withdrawn from the second jack 1221; or,

[0161] The insertion column 152 includes a second clamping part, the locking member 121 is formed with a second clamping groove, when the locking member 121 is in the first locking position, the second clamping part is inserted into the second clamping groove to restrict the insertion column 152 from withdrawing from the second jack 1221; when the locking member 121 is in the first unlocking position, the second clamping part withdraws from the second clamping groove, and the insertion column 152 can be inserted into or withdrawn from the second jack 1221.

[0162] The structure of the installation component 120 provided by the embodiments of the present application can refer to the installation component 120 in any of the above embodiments, and will not be elaborated here.

[0163] The embodiments of the present application also provide a tibial osteotomy positioning device 100, including a distance adjustment component 110, a posterior inclination adjustment component 140, an installation component 120 and a fixing component 130. The distance adjustment component is respectively connected to the posterior inclination adjustment component 140 and the fixing component 130. The posterior inclination adjustment component 140 is connected to the installation component 120. The fixing component 130 is used to be fixed to the human body. The distance adjustment component 110 is used to adjust the distance between the posterior inclination adjustment component 140 and the fixing component 130. The installation component 120 is used to be connected to the tibial osteotomy block 150; the posterior inclination adjustment component 140 includes a base 141, a first transmission member 142 and an adjustment knob 1431. The installation component 120 is installed on the base 141; the adjustment knob 1431 is connected to the base 141 through the first transmission member 142;

[0164] The distance adjustment assembly 110 includes a positioning member 112. The base 141 is rotatably connected to the distance adjustment assembly 110. The adjustment knob 1431 is mounted on the positioning member 112. The positioning member 112 includes a first positioning portion 1121, and the adjustment knob 1431 includes a second positioning portion 1432. The number of at least one of the first positioning portion 1121 and the second positioning portion 1432 is multiple, and they are sequentially distributed around the axis L2. The adjustment knob 1431 can slide relative to the positioning member 112 between a second locking position and a second unlocking position. The sliding direction of the adjustment knob 1431 relative to the positioning member 112 is substantially parallel to the axis L2.

[0165] When the adjustment knob 1431 is in the second unlocking position, the first positioning portion 1121 is disengaged from the second positioning portion 1432, and the adjustment knob 1431 can rotate relative to the positioning member 112 around the axis L2, driving the first transmission member 142 to push the base 141 to rotate, so as to adjust the rear inclination angle α of the mounting assembly 120.

[0166] When the adjustment knob 1431 is in the second locking position, the first positioning portion 1121 cooperates with any one of the multiple second positioning portions 1432, or the second positioning portion 1432 cooperates with any one of the multiple first positioning portions 1121 to limit the rotation of the adjustment knob 1431 around the axis L2.

[0167] In some embodiments, one of the first positioning portion 1121 and the second positioning portion 1432 includes a positioning groove 1122, and the other of the first positioning portion 1121 and the second positioning portion 1432 includes a positioning protrusion. The positioning protrusion is used to insert into the positioning groove 1122 so that the first positioning portion 1121 cooperates with the second positioning portion 1432. The positioning protrusion exits the positioning groove 1122 so that the first positioning portion 1121 is disengaged from the second positioning portion 1432.

[0168] In some embodiments, the rear inclination angle adjustment assembly 140 further includes a second transmission member 1433. The second transmission member 1433 is rotatably mounted on the positioning member 112 around the axis L2, and the second transmission member 1433 is connected to the first transmission member 142.

[0169] The adjustment knob 1431 is slidably connected to the second transmission member 1433 along the extension direction of the axis L2. When the adjustment knob 1431 is in the second unlocking position, it can drive the second transmission member 1433 to rotate around the axis L2 to drive the first transmission member 142 to push the base 141 to rotate.

[0170] In some embodiments, the distance adjustment assembly 110 is configured to adjust the distance between the caster angle adjustment assembly 140 and the fixing assembly 130 in the first direction X; when the adjustment knob 1431 rotates about the axis L2, it can drive the first transmission member 142 to move relative to the first adjustment member 111 or the second adjustment member 113 in the first direction X, so as to push the base 141 to rotate.

[0171] An embodiment of the present application further provides a caster angle adjustment assembly 140, which is configured to be connected to the mounting assembly 120 and the distance adjustment assembly 110. The distance adjustment assembly 110 is configured to be connected to the fixing assembly 130; the fixing assembly 130 is configured to be fixed to the human body, the mounting assembly 120 is configured to be connected to the tibial osteotomy block 150, and the distance adjustment assembly 110 is configured to adjust the distance between the caster angle adjustment assembly 140 and the fixing assembly 130 in the first direction X; the caster angle adjustment assembly 140 includes a base 141, a first transmission member 142, and an adjustment knob 1431. The mounting assembly 120 is mounted on the base 141; the adjustment knob 1431 is connected to the base 141 through the first transmission member 142; the distance adjustment assembly 110 includes a positioning member 112, and the base 141 is rotatably connected to the distance adjustment assembly 110;

[0172] The adjustment knob 1431 is mounted on the positioning member 112. The positioning member 112 includes a first positioning portion 1121, and the adjustment knob 131 includes a second positioning portion 1432. At least one of the first positioning portion 1121 and the second positioning portion 1432 has a plurality of numbers and is distributed in sequence around the axis L2; the adjustment knob 1431 can slide relative to the positioning member 112 between a second locking position and a second unlocking position, and the sliding direction of the adjustment knob 1431 relative to the positioning member 112 is substantially parallel to the axis L2;

[0173] When the adjustment knob 1431 is in the second unlocking position, the first positioning portion 1121 is disengaged from the second positioning portion 1432, and the adjustment knob 1431 can rotate relative to the positioning member 112 about the axis L2, driving the first transmission member 142 to push the base 141 to rotate, so as to adjust the caster angle α of the mounting assembly 120;

[0174] When the adjustment knob 1431 is in the second locking position, the first positioning portion 1121 cooperates with any one of the plurality of second positioning portions 1432, or the second positioning portion 1432 cooperates with any one of the plurality of first positioning portions 1121 to limit the rotation of the adjustment knob 1431 about the axis L2.

[0175] In some embodiments, one of the first positioning portion 1121 and the second positioning portion 1432 includes a positioning groove 1122, and the other of the first positioning portion 1121 and the second positioning portion 1432 includes a positioning protrusion for inserting into the positioning groove 1122 to cooperate the first positioning portion 1121 with the second positioning portion 1432; when the positioning protrusion withdraws from the positioning groove 1122, the cooperation between the first positioning portion 1121 and the second positioning portion 1432 is released.

[0176] In some embodiments, the rake angle adjusting assembly 140 further includes a second transmission member 1433 rotatably mounted on the positioning member 112 about an axis L2, and the second transmission member 1433 is connected to the first transmission member 142;

[0177] The adjusting knob 1431 is slidably connected to the second transmission member 1433 along the extending direction of the axis L2. When the adjusting knob 1431 is in the second unlocking position, it can drive the second transmission member 1433 to rotate about the axis L2 to drive the first transmission member 142 to push the base 141 to rotate.

[0178] In some embodiments, the distance adjusting assembly 110 is configured to adjust the distance between the rake angle adjusting assembly 140 and the fixing assembly 130 in a first direction X; when the adjusting knob 1431 rotates about the axis L2, it can drive the first transmission member 142 to move relative to the first adjusting member 111 or the second adjusting member 113 in the first direction X to push the base 141 to rotate.

[0179] The rake angle adjusting assembly 140 provided in the embodiments of the present application may refer to the rake angle adjusting assembly 140 in any of the above embodiments, which will not be elaborated herein.

[0180] In the above embodiments, the descriptions of the various embodiments have their own focuses. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0181] The above has introduced in detail an installation assembly, a rake angle or distance adjusting assembly, and a tibial osteotomy positioning device provided by the embodiments of the present application. Specific examples are used herein to elaborate the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tibial osteotomy positioning device, characterized in that, it includes a distance adjustment component, a mounting component and a fixing component; the mounting component is used to connect with the tibial osteotomy block, the fixing component is used to be fixed to the human body, the distance adjustment component is respectively connected to the mounting component and the fixing component, and the distance adjustment component is used to adjust the distance between the mounting component and the fixing component; the distance adjustment component includes a first adjustment member, a second adjustment member and a moving member; one of the first adjustment member and the second adjustment member is connected to the fixing component, the other of the first adjustment member and the second adjustment member is connected to the mounting component, and the first adjustment member and the second adjustment member can move relative to each other to adjust the distance between the mounting component and the fixing component; the number of the moving members is one, the moving member is connected to the first adjustment member, and the moving member can be in a coupled state and a decoupled state; when the moving member is in the coupled state, the moving member is coupled with the second adjustment member, and the moving member can move relative to the first adjustment member and the second adjustment member to drive the first adjustment member and the second adjustment member to move relative to each other; when the moving member is in the decoupled state, the moving member is decoupled from the second adjustment member, and in a state where the first adjustment member and the moving member remain relatively stationary, the two can move relative to the second adjustment member together under the action of an external force; or, the first adjustment member can drive the moving member to move relative to the second adjustment member together under the action of an external force.

2. The tibial osteotomy positioning device according to claim 1, characterized in that, when the moving member is in the coupled state, during the process of the moving member moving relative to the first adjustment member and the second adjustment member, the moving member applies a first thrust to the first adjustment member and a second thrust to the second adjustment member, the first thrust is used to drive the first adjustment member to move relative to the second adjustment member, and the second thrust is used to drive the second adjustment member to move relative to the first adjustment member.

3. The tibial osteotomy positioning device according to claim 1, characterized in that, when the moving member is in the coupled state, the moving member contacts the second adjustment member; when the moving member is in the decoupled state, the moving member is separated from the second adjustment member; or, when the moving member is in the coupled state, the moving member meshes with the second adjustment member; when the moving member is in the decoupled state, the moving member disengages from the second adjustment member.

4. The tibial osteotomy positioning device according to claim 3, characterized in that, the first adjustment member and the second adjustment member can slide relative to each other in a first direction to adjust the distance between the mounting component and the fixing component in the first direction.

5. The tibial osteotomy positioning device according to claim 4, characterized in that, the second adjustment member includes a rack section extending along the first direction; the moving member includes an adjustment thread extending along the first direction; Wherein, when the moving member is in the coupled state, the adjusting thread meshes with the rack section, and the moving member can rotate relative to the first adjusting member and the second adjusting member to drive the relative movement of the first adjusting member and the second adjusting member; when the moving member is in the decoupled state, the adjusting thread disengages from the rack section.

6. The tibial osteotomy positioning device according to claim 5, characterized in that the moving member includes an inner surface, the inner surface encloses a through hole extending in the first direction, and the inner surface is provided with the adjusting thread; the rack section passes through the through hole.

7. The tibial osteotomy positioning device according to claim 5, characterized in that the moving member can slide relative to the first adjusting member to switch the moving member between the coupled state and the decoupled state, and the sliding direction of the moving member is substantially perpendicular to the first direction.

8. The tibial osteotomy positioning device according to claim 7, characterized in that the rack section includes a first side surface and a second side surface sequentially distributed along the sliding direction of the moving member, and a plurality of meshing teeth for meshing with the adjusting thread are provided on the second side surface, and the plurality of meshing teeth are sequentially distributed along the length direction of the rack section.

9. The tibial osteotomy positioning device according to claim 8, characterized in that the first side surface is a smooth surface.

10. The tibial osteotomy positioning device according to claim 1, characterized in that the distance adjustment assembly further includes a connecting member movably installed on the first adjusting member, the moving member is movably connected to the connecting member, and the connecting member can move relative to the first adjusting member to guide the switching of the moving member between the coupled state and the decoupled state.

11. The tibial osteotomy positioning device according to claim 10, characterized in that the first adjusting member and the second adjusting member can slide relative to each other in the first direction, the connecting member is slidably installed on the first adjusting member, and the sliding direction of the connecting member is substantially perpendicular to the first direction.

12. The tibial osteotomy positioning device according to claim 11, characterized in that the first adjusting member is provided with a first sliding groove, the connecting member includes a first sliding portion, and the first sliding portion is slidably installed in the first sliding groove to slidably install the connecting member on the first adjusting member; or, the first adjusting member includes a second sliding portion, the connecting member is provided with a second sliding groove, and the second sliding portion is slidably installed in the second sliding groove to slidably install the connecting member on the first adjusting member.

13. The tibial osteotomy positioning device according to claim 10, characterized in that the moving member is rotatably connected to the connecting member so that when the moving member is in the coupled state, it can rotate relative to the first adjusting member and the second adjusting member to drive the relative movement of the first adjusting member and the second adjusting member.

14. The tibial osteotomy positioning device according to claim 13, characterized in that the first adjusting member and the second adjusting member can slide relative to each other in the first direction, and the moving member is located on one side of the connecting member along the first direction; Wherein, a first mounting hole is provided on a side of the moving member facing the connecting member, a first connecting portion is protruded on a side of the connecting member facing the moving member, and the first connecting portion is inserted into the first mounting hole so that the moving member is rotatably connected to the connecting member; or, A second connection portion is protruded from one side of the moving member facing the connecting member, a second mounting hole is opened on one side of the connecting member facing the moving member, and the second connection portion is inserted into the second mounting hole so that the moving member is rotatably connected to the connecting member.

15. The tibial osteotomy positioning device according to claim 10, It is characterized in that The first adjusting member and the second adjusting member can slide relative to each other in a first direction, the first adjusting member comprises a mounting seat, and the mounting seat comprises a mounting portion, a limiting portion and a third connecting portion; The third connecting portion is respectively connected to the mounting portion and the limiting portion, the mounting portion, the connecting member, the moving member and the limiting portion are sequentially distributed along the first direction, the connecting member is movably mounted on the mounting portion, and the limiting portion is used to abut against a side of the moving member away from the connecting member.

16. The tibial osteotomy positioning device according to claim 15, It is characterized in that The third connection portion is located at one side of the moving member along a second direction, and the second direction is substantially perpendicular to the first direction; or, The moving part includes an inner surface, the inner surface encloses a through hole extending along the first direction, and the third connecting portion passes through the through hole.

17. The tibial osteotomy positioning device according to claim 10, It is characterized in that The distance adjustment assembly further includes a first elastic member connected to the first adjustment member; Wherein, the first elastic member is connected to the connecting member to drive the connecting member to drive the moving member to move, so that the moving member switches from the decoupled state to the coupled state; or, Wherein, the first elastic member is used to be connected with the moving member to drive the moving member to move, so that the moving member switches from the decoupled state to the coupled state.

18. The tibial osteotomy positioning device according to claim 17, It is characterized in that The first adjusting member and the second adjusting member can slide relative to each other in a first direction; the connecting member is slidably installed on the first adjusting member along the second direction, the first elastic member is located on one side of the connecting member along the second direction, the first elastic member abuts against one side of the connecting member along the second direction, and the second direction is basically perpendicular to the first direction.

19. The tibial osteotomy positioning device according to claim 1, It is characterized in that The first adjusting member and the second adjusting member are relatively slidable in a first direction; the first adjusting member includes a sleeve portion and a mounting seat connected to each other, the sleeve portion extends along the first direction, at least a part of the sleeve portion is sleeved on the second adjusting member, the moving member is connected to the mounting seat, the mounting assembly or the fixing assembly is connected to the sleeve portion, and the sleeve portion and the mounting seat are relatively slidable along the first direction with respect to the second adjusting member to adjust the distance between the mounting assembly and the fixing assembly in the first direction.

20. The tibial osteotomy positioning device according to any one of claims 1 to 19, characterized in that the mounting assembly includes a locking member and a fixing portion, the fixing portion is connected to the first adjusting member or the second adjusting member, and the locking member is movably connected to the fixing portion; the locking member is movable relative to the fixing portion between a first locking position and a first unlocking position; wherein, the locking member includes a hooking portion, when the locking member is in the first unlocking position, the hooking portion and the fixing portion can be inserted into or taken out from the same first insertion hole of the tibial osteotomy block; when the hooking portion and the fixing portion are inserted into the same first insertion hole and the locking member is in the first locking position, the hooking portion can be hooked to the tibial osteotomy block to jointly lock the locking member, the fixing portion and the tibial osteotomy block; or, wherein, the fixing portion is formed with a second insertion hole for inserting the insertion post of the tibial osteotomy block; when the locking member is in the first locking position, the locking member is clamped with the insertion post to restrict the insertion post from withdrawing from the second insertion hole to jointly lock the locking member, the fixing portion and the tibial osteotomy block; when the locking member is in the first unlocking position, the locking member releases the insertion post, and the insertion post can be inserted into or withdrawn from the second insertion hole.

21. The tibial osteotomy positioning device according to claim 20, characterized in that a first clamping groove is formed on the outer peripheral surface of the insertion post; the locking member includes a first clamping portion; when the locking member is in the first locking position, the first clamping portion is inserted into the first clamping groove to restrict the insertion post from withdrawing from the second insertion hole; when the locking member is in the first unlocking position, the first clamping portion withdraws from the first clamping groove, and the insertion post can be inserted into or withdrawn from the second insertion hole; or, the insertion post includes a second clamping portion, the locking member is formed with a second clamping groove, when the locking member is in the first locking position, the second clamping portion is inserted into the second clamping groove to restrict the insertion post from withdrawing from the second insertion hole; when the locking member is in the first unlocking position, the second clamping portion withdraws from the second clamping groove, and the insertion post can be inserted into or withdrawn from the second insertion hole.

22. The tibial osteotomy positioning device according to claim 20, characterized in that The installation component further includes a second elastic member respectively connected to the fixing portion and the locking member, and the second elastic member is configured to drive the locking member to move from the first unlocking position to the first locking position.

23. The tibial osteotomy positioning device according to any one of claims 1 to 19, wherein, the tibial osteotomy positioning device further includes a posterior tilt angle adjustment component, the distance adjustment component is connected to the installation component through the posterior tilt angle adjustment component, and the posterior tilt angle adjustment component is configured to adjust the posterior tilt angle of the installation component; the posterior tilt angle adjustment component includes a base, a first transmission member and an adjustment knob, and the installation component is mounted on the base; the adjustment knob is connected to the base through the first transmission member; the distance adjustment component includes a positioning member, the positioning member is disposed on the first adjustment member, and the base is rotatably connected to the first adjustment member; alternatively, the positioning member is disposed on the second adjustment member, and the base is rotatably connected to the second adjustment member; the adjustment knob is mounted on the positioning member, the positioning member includes a first positioning portion, the adjustment knob includes a second positioning portion, and at least one of the first positioning portion and the second positioning portion has a plurality of numbers and is distributed in sequence around an axis; the adjustment knob can slide relative to the positioning member between a second locking position and a second unlocking position, and the sliding direction of the adjustment knob relative to the positioning member is substantially parallel to the axis; when the adjustment knob is in the second unlocking position, the first positioning portion is disengaged from the second positioning portion, and the adjustment knob can rotate relative to the positioning member around the axis, driving the first transmission member to push the base to rotate, so as to adjust the posterior tilt angle of the installation component; when the adjustment knob is in the second locking position, the first positioning portion cooperates with any one of the plurality of second positioning portions, or the second positioning portion cooperates with any one of the plurality of first positioning portions to limit the rotation of the adjustment knob around the axis.

24. The tibial osteotomy positioning device according to claim 23, wherein, one of the first positioning portion and the second positioning portion includes a positioning groove, and the other of the first positioning portion and the second positioning portion includes a positioning protrusion, and the positioning protrusion is configured to be inserted into the positioning groove so that the first positioning portion cooperates with the second positioning portion; the positioning protrusion exits the positioning groove so that the first positioning portion is disengaged from the second positioning portion.

25. The tibial osteotomy positioning device according to claim 23, wherein, the posterior tilt angle adjustment component further includes a second transmission member, the second transmission member is rotatably mounted on the positioning member around the axis, and the second transmission member is connected to the first transmission member; the adjustment knob is slidably connected to the second transmission member along the extending direction of the axis, and when the adjustment knob is in the second unlocking position, it can drive the second transmission member to rotate around the axis to drive the first transmission member to push the base to rotate.

26. The tibial osteotomy positioning device according to claim 25, wherein, The second transmission member includes an abutting portion for abutting against the positioning member to limit the angle of rotation of the second transmission member about the axis, so that the posterior tilt angle of the mounting assembly can be adjusted within a preset angle range.

27. The tibial osteotomy positioning device according to claim 23, wherein, the posterior tilt angle adjustment assembly further includes a third elastic member connected to the adjustment knob, and the third elastic member is used to drive the adjustment knob to slide from the second unlocking position to the second locking position.

28. The tibial osteotomy positioning device according to claim 23, wherein, the first adjustment member and the second adjustment member can slide relative to each other in a first direction; when the adjustment knob rotates about the axis, it can drive the first transmission member to move relative to the first adjustment member or the second adjustment member in the first direction to push the base to rotate.

29. The tibial osteotomy positioning device according to claim 23, wherein, the mounting assembly includes a locking member and a fixing portion, the fixing portion is integrally formed with the base, and the locking member is movably connected to the fixing portion; the locking member can move relative to the fixing portion between a first locking position and a first unlocking position; the locking member includes a hooking portion. When the locking member is in the first unlocking position, the hooking portion and the fixing portion can be inserted into or removed from the same first jack of the tibial osteotomy block; when the hooking portion and the fixing portion are inserted into the same first jack and the locking member is in the first locking position, the hooking portion can hook the tibial osteotomy block to lock the locking member, the fixing portion and the tibial osteotomy block together.

30. A distance adjustment assembly, wherein, the distance adjustment assembly is used to connect the mounting assembly and the fixing assembly respectively to adjust the distance between the mounting assembly and the fixing assembly; the mounting assembly is used to connect with the tibial osteotomy block, and the fixing assembly is used to be fixed to the human body; the distance adjustment assembly includes a first adjustment member, a second adjustment member and a moving member; one of the first adjustment member and the second adjustment member is connected to the fixing assembly, and the other of the first adjustment member and the second adjustment member is connected to the mounting assembly. The first adjustment member and the second adjustment member can move relative to each other to adjust the distance between the mounting assembly and the fixing assembly; the number of the moving members is one, the moving member is connected to the first adjustment member, and the moving member can be in a coupled state and a decoupled state, when the moving member is in the coupled state, the moving member is coupled with the second adjustment member, and the moving member can move relative to the first adjustment member and the second adjustment member to drive the first adjustment member and the second adjustment member to move relative to each other. When the moving member is in the decoupled state, the moving member is decoupled from the second adjusting member. In a state where the first adjusting member and the moving member remain relatively stationary, the two can move relative to the second adjusting member together under the drive of an external force; or, the first adjusting member can drive the moving member to move relative to the second adjusting member together under the action of an external force.

31. The distance adjusting assembly according to claim 30, wherein, the first adjusting member and the second adjusting member can slide relative to each other in a first direction to adjust the distance between the mounting assembly and the fixing assembly in the first direction; the second adjusting member includes a rack section extending along the first direction; the moving member includes an adjusting thread extending along the first direction. Wherein, when the moving member is in the coupled state, the adjusting thread meshes with the rack section, and the moving member can rotate relative to the second adjusting member to drive the first adjusting member and the second adjusting member to move relative to each other; when the moving member is in the decoupled state, the adjusting thread disengages from the rack section.

32. The distance adjusting assembly according to claim 30, wherein, the distance adjusting assembly further includes a connecting member movably mounted on the first adjusting member, the moving member is movably connected to the connecting member, and the connecting member can move relative to the first adjusting member to guide the switching of the moving member between the coupled state and the decoupled state.

33. A tibial osteotomy positioning device, wherein, comprising a mounting assembly and a fixing assembly, the mounting assembly is connected to the fixing assembly, the mounting assembly is used for connecting with a tibial osteotomy block, and the fixing assembly is used for fixing to a human body; the mounting assembly includes a locking member and a fixing portion, the fixing portion is connected to the fixing assembly, and the locking member is movably connected to the fixing portion; the locking member can move relative to the fixing portion between a first locking position and a first unlocking position; Wherein, the locking member includes a hook portion. When the locking member is in the first unlocking position, the hook portion and the fixing portion can be inserted into or taken out of the same first jack of the tibial osteotomy block; when the hook portion and the fixing portion are inserted into the same first jack and the locking member is in the first locking position, the hook portion can be hooked to the tibial osteotomy block to lock the locking member, the fixing portion and the tibial osteotomy block together; or, Wherein, the fixing portion is formed with a second jack for inserting a plug column of the tibial osteotomy block; when the locking member is in the first locking position, the locking member is clamped with the plug column to restrict the plug column from withdrawing from the second jack to lock the locking member, the fixing portion and the tibial osteotomy block together; when the locking member is in the first unlocking position, the locking member releases the plug column, and the plug column can be inserted into or withdrawn from the second jack.

34. The tibial osteotomy positioning device according to claim 33, wherein, A first clamping groove is formed on the outer peripheral surface of the plug post; the locking member includes a first clamping portion; when the locking member is in the first locking position, the first clamping portion is inserted into the first clamping groove to limit the plug post from withdrawing from the second insertion hole; when the locking member is in the first unlocking position, the first clamping portion withdraws from the first clamping groove, and the plug post can be inserted into or withdrawn from the second insertion hole; Or, The plug post includes a second clamping portion, and the locking member is formed with a second clamping groove. When the locking member is in the first locking position, the second clamping portion is inserted into the second clamping groove to limit the plug post from withdrawing from the second insertion hole; when the locking member is in the first unlocking position, the second clamping portion withdraws from the second clamping groove, and the plug post can be inserted into or withdrawn from the second insertion hole.

35. An installation assembly, characterized in that, the installation assembly is used to connect with a fixing assembly, the fixing assembly is used to be fixed to a human body, and the installation assembly is used to connect with a tibial osteotomy block; the installation assembly includes a locking member and a fixing portion, the fixing portion is connected to the fixing assembly, and the locking member is movably connected to the fixing portion; the locking member can move relative to the fixing portion between a first locking position and a first unlocking position; wherein, the locking member includes a hooking portion. When the locking member is in the first unlocking position, the hooking portion and the fixing portion can be inserted into or taken out from the same first insertion hole of the tibial osteotomy block; when the hooking portion and the fixing portion are inserted into the same first insertion hole and the locking member is in the first locking position, the hooking portion can be hooked to the tibial osteotomy block to jointly lock the locking member, the fixing portion and the tibial osteotomy block; or, wherein, the fixing portion is formed with a second insertion hole for the plug post of the tibial osteotomy block to be inserted into; when the locking member is in the first locking position, the locking member is clamped with the plug post to limit the plug post from withdrawing from the second insertion hole, so as to jointly lock the locking member, the fixing portion and the tibial osteotomy block; when the locking member is in the first unlocking position, the locking member releases the plug post, and the plug post can be inserted into or withdrawn from the second insertion hole.

36. The installation assembly according to claim 35, characterized in that, a first clamping groove is formed on the outer peripheral surface of the plug post; the locking member includes a first clamping portion; when the locking member is in the first locking position, the first clamping portion is inserted into the first clamping groove to limit the plug post from withdrawing from the second insertion hole; when the locking member is in the first unlocking position, the first clamping portion withdraws from the first clamping groove, and the plug post can be inserted into or withdrawn from the second insertion hole; Or, The plug post includes a second clamping portion, and the locking member is formed with a second clamping groove. When the locking member is in the first locking position, the second clamping portion is inserted into the second clamping groove to limit the plug post from withdrawing from the second jack; when the locking member is in the first unlocking position, the second clamping portion withdraws from the second clamping groove, and the plug post can be inserted into or withdrawn from the second jack.

37. A tibial osteotomy positioning device characterized in that it includes a distance adjustment component, a posterior inclination adjustment component, a mounting component and a fixing component. The distance adjustment component is respectively connected to the posterior inclination adjustment component and the fixing component. The posterior inclination adjustment component is connected to the mounting component. The fixing component is used for fixing to the human body. The distance adjustment component is used for adjusting the distance between the posterior inclination adjustment component and the fixing component. The mounting component is used for connecting with a tibial osteotomy block; The posterior inclination adjustment component includes a base, a first transmission member and an adjustment knob. The mounting component is mounted on the base; the adjustment knob is connected to the base through the first transmission member; The distance adjustment component includes a positioning member, and the base is rotatably connected to the distance adjustment component; The adjustment knob is mounted on the positioning member. The positioning member includes a first positioning portion, and the adjustment knob includes a second positioning portion. At least one of the first positioning portion and the second positioning portion has a plurality of numbers and is distributed in sequence around the axis; the adjustment knob can slide relative to the positioning member between a second locking position and a second unlocking position, and the sliding direction of the adjustment knob relative to the positioning member is substantially parallel to the axis; When the adjustment knob is in the second unlocking position, the first positioning portion and the second positioning portion are disengaged, and the adjustment knob can rotate relative to the positioning member around the axis, driving the first transmission member to push the base to rotate, so as to adjust the posterior inclination of the mounting component; When the adjustment knob is in the second locking position, the first positioning portion cooperates with any one of the plurality of second positioning portions, or the second positioning portion cooperates with any one of the plurality of first positioning portions to limit the adjustment knob from rotating around the axis.

38. The tibial osteotomy positioning device according to claim 37, characterized in that one of the first positioning portion and the second positioning portion includes a positioning groove, and the other of the first positioning portion and the second positioning portion includes a positioning protrusion. The positioning protrusion is used for inserting into the positioning groove so that the first positioning portion and the second positioning portion cooperate; the positioning protrusion withdraws from the positioning groove so that the first positioning portion and the second positioning portion are disengaged.

39. The tibial osteotomy positioning device according to claim 37, characterized in that the posterior inclination adjustment component further includes a second transmission member. The second transmission member is rotatably mounted on the positioning member around the axis, and the second transmission member is connected to the first transmission member; The adjusting knob is slidably connected to the second transmission member along the extending direction of the axis. When the adjusting knob is in the second unlocking position, it can drive the second transmission member to rotate around the axis so as to drive the first transmission member to push the base to rotate.

40. The tibial osteotomy positioning device according to claim 37, wherein, the distance adjusting assembly is used to adjust the distance between the posterior tilt adjusting assembly and the fixing assembly in a first direction; when the adjusting knob rotates around the axis, it can drive the first transmission member to move relative to the first adjusting member or the second adjusting member in the first direction so as to push the base to rotate.

41. A posterior tilt adjusting assembly, wherein, the posterior tilt adjusting assembly is used to be connected to the mounting assembly and the distance adjusting assembly, and the distance adjusting assembly is used to be connected to the fixing assembly; the fixing assembly is used to be fixed to the human body, the mounting assembly is used to be connected to the tibial osteotomy block, and the distance adjusting assembly is used to adjust the distance between the posterior tilt adjusting assembly and the fixing assembly; the posterior tilt adjusting assembly includes a base, a first transmission member and an adjusting knob, and the mounting assembly is mounted on the base; the adjusting knob is connected to the base through the first transmission member; the distance adjusting assembly includes a positioning member, and the base is rotatably connected to the distance adjusting assembly; the adjusting knob is mounted on the positioning member. The positioning member includes a first positioning portion, and the adjusting knob includes a second positioning portion. At least one of the first positioning portion and the second positioning portion has a plurality of numbers and is distributed in sequence around the axis; the adjusting knob can slide relative to the positioning member between a second locking position and a second unlocking position, and the sliding direction of the adjusting knob relative to the positioning member is substantially parallel to the axis; when the adjusting knob is in the second unlocking position, the first positioning portion is disengaged from the second positioning portion, and the adjusting knob can rotate relative to the positioning member around the axis to drive the first transmission member to push the base to rotate so as to adjust the posterior tilt of the mounting assembly; when the adjusting knob is in the second locking position, the first positioning portion cooperates with any one of the plurality of second positioning portions, or the second positioning portion cooperates with any one of the plurality of first positioning portions to limit the rotation of the adjusting knob around the axis.

42. The posterior tilt adjusting assembly according to claim 41, wherein, one of the first positioning portion and the second positioning portion includes a positioning groove, and the other of the first positioning portion and the second positioning portion includes a positioning protrusion. The positioning protrusion is used to be inserted into the positioning groove so that the first positioning portion cooperates with the second positioning portion; the positioning protrusion withdraws from the positioning groove so that the first positioning portion is disengaged from the second positioning portion.

43. The posterior tilt adjusting assembly according to claim 41, wherein, The distance adjustment component is used to adjust the distance between the caster angle adjustment component and the fixed component in the first direction; when the adjustment knob rotates around the axis, it can drive the first transmission member to move relative to the first adjustment member or the second adjustment member in the first direction, so as to push the base to rotate.

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