Tibial osteotomy positioning assembly, gap measurement assembly, osteotomy device, and osteotomy system

Abstract

The application discloses a tibial osteotomy positioning assembly, a gap measuring assembly, an osteotomy device and an osteotomy system. The tibial osteotomy positioning assembly comprises a mounting mechanism and at least one measuring piece. The mounting mechanism is used for connecting with a tibial osteotomy block. The at least one measuring piece is used for connecting with the mounting mechanism. The mounting mechanism can place the at least one measuring piece in a first measuring position and a second measuring position. The at least one measuring piece is located at different positions of the mounting mechanism when being placed in the first measuring position and the second measuring position. The measuring piece in the first measuring position is used for being inserted between an inner condyle of a femur and an articular surface of a tibia, so as to measure the distance between the inner condyle and the articular surface, and to position the relative positions of the tibial osteotomy block and the articular surface. The measuring piece in the second measuring position is used for being inserted between an outer condyle of the femur and the articular surface of the tibia, so as to measure the distance between the outer condyle and the articular surface, and to position the relative positions of the tibial osteotomy block and the articular surface.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to tibial osteotomy positioning components, gap measuring components, osteotomy devices, and osteotomy systems. Background Technology

[0002] Proximal tibial osteotomy is a crucial step in knee replacement surgery, and a tibial osteotomy positioning device is an essential instrument for locating the tibial osteotomy pieces. Existing tibial osteotomy positioning devices determine the position of the tibial osteotomy pieces by measuring the lowest point of wear on the tibial articular surface and based on the location of this lowest point.

[0003] However, existing tibial osteotomy positioning components cannot eliminate the influence of cartilage wear on the amount of tibial osteotomy, resulting in inaccurate positioning of the tibial osteotomy blocks and affecting the surgical outcome. Summary of the Invention

[0004] This application provides a tibial osteotomy positioning component, a gap measuring component, an osteotomy device, and a system, aiming to solve the problem that existing tibial osteotomy positioning components cannot eliminate the influence of cartilage wear on the amount of tibial osteotomy, resulting in inaccurate positioning of the tibial osteotomy block and affecting the surgical outcome.

[0005] This application provides a tibial osteotomy positioning component, including:

[0006] Installation mechanism for connection to tibial osteotomy block;

[0007] At least one measuring element is provided for connection to the mounting mechanism, which can position the at least one measuring element at a first measuring position and a second measuring position, wherein the at least one measuring element is located at different positions on the mounting mechanism when positioned at the first measuring position and the second measuring position; the measuring element at the first measuring position is used to insert between the medial condyle of the femur and the articular surface of the tibia to measure the distance between the medial condyle and the articular surface, and to locate the relative position of the tibial osteotomy block and the articular surface; the measuring element at the second measuring position is used to insert between the lateral condyle of the femur and the articular surface of the tibia to measure the distance between the lateral condyle and the articular surface, and to locate the relative position of the tibial osteotomy block and the articular surface.

[0008] In some embodiments, the mounting mechanism includes a connector for connecting to the tibial osteotomy block;

[0009] The mounting mechanism further includes a first mounting member and a second mounting member. The first mounting member is used to connect to the at least one measuring element and place the at least one measuring element in the first measuring position; the second mounting member is used to connect to the at least one measuring element and place the at least one measuring element in the second measuring position; or,

[0010] The mounting mechanism further includes a third mounting member for connecting to the at least one measuring element. The third mounting member is movable relative to the connecting member to place the at least one measuring element at the first measuring position and the second measuring position.

[0011] In some embodiments, at least one of the first mounting member and the second mounting member is configured for detachable connection with the at least one measuring member; or...

[0012] The third mounting component is used for detachable connection with the at least one measuring component.

[0013] In some embodiments, the first mounting member has a first mounting hole extending through it along a first direction, and the at least one measuring element can be inserted into the first mounting hole to detachably connect to the first mounting member; the second mounting member has a second mounting hole extending through it along the first direction, and the at least one measuring element can be inserted into the second mounting hole to detachably connect to the second mounting member; or...

[0014] The third mounting component has a third mounting hole that extends through the third mounting component along a first direction. The at least one measuring component can be inserted into the third mounting hole so that the at least one measuring component is detachably connected to the third mounting component.

[0015] In some embodiments, the first mounting member and the second mounting member are sequentially distributed along a second direction, and the first mounting member and the second mounting member can rotate together relative to the connector about a first rotation axis; the first direction, the second direction, and the first rotation axis are substantially perpendicular to each other; or...

[0016] The third mounting member can move relative to the connector along a second direction to place the at least one measuring member at the first measuring position and the second measuring position; the third mounting member can rotate relative to the connector about a second rotation axis, wherein the first direction, the second direction and the second rotation axis are substantially perpendicular to each other.

[0017] In some embodiments, the mounting mechanism further includes a first rotating shaft extending along the first rotation axis, the connecting member being connected to the first mounting member or the second mounting member via the first rotating shaft, the first mounting member and the second mounting member being rotatable together about the first rotating shaft, or the connecting member being rotatable about the first rotating shaft; or...

[0018] The mounting mechanism further includes a second rotating shaft extending along the second rotation axis, and the third mounting member is connected to the connecting member through the second rotating shaft. The third mounting member or the connecting member can rotate around the second rotating shaft.

[0019] In some embodiments, the mounting mechanism further includes a first locking member connected to the first mounting member, the first locking member being used to lock the at least one measuring member and the first mounting member; the mounting mechanism further includes a second locking member connected to the second mounting member, the second locking member being used to lock the at least one measuring member and the second mounting member; or...

[0020] The mounting mechanism further includes a third locking member connected to the third mounting member, the third locking member being used to lock the at least one measuring member and the third mounting member.

[0021] In some embodiments, the first mounting member has a first threaded hole communicating with the first mounting hole. The first locking member includes a first knob and a first threaded rod, the first threaded rod being threadedly connected to the first threaded hole. The first knob is located at the end of the first threaded rod away from the first mounting hole, and the end of the first threaded rod away from the first knob is used to abut against the at least one measuring element to lock the at least one measuring element and the first mounting member. The second mounting member has a second threaded hole communicating with the second mounting hole. The second locking member includes a second knob and a second threaded rod, the second threaded rod being threadedly connected to the second threaded hole. The second knob is located at the end of the second threaded rod away from the second mounting hole, and the end of the second threaded rod away from the second knob is used to abut against the at least one measuring element to lock the at least one measuring element and the second mounting member. Alternatively,

[0022] The third mounting component has a third threaded hole communicating with the third mounting hole. The third locking component includes a third knob and a third threaded rod. The third threaded rod is threadedly connected to the third threaded hole. The third knob is located at the end of the third threaded rod away from the third mounting hole. The end of the third threaded rod away from the third knob is used to abut against the at least one measuring component to lock the at least one measuring component and the third mounting component.

[0023] In some embodiments, the first mounting member and the second mounting member are sequentially distributed along a second direction; in the second direction, the first mounting member and the second mounting member are movable relative to each other; or,

[0024] The third mounting component is movably connected to the connector to place the measuring component at the first measuring position and the second measuring position.

[0025] In some embodiments, the mounting mechanism further includes a first slide rail extending along the second direction, the first mounting member being connected to the second mounting member via the first slide rail, and the first mounting member or the second mounting member being slidably mounted on the first slide rail; or...

[0026] The mounting mechanism further includes a second slide rail connected to the connector, the second slide rail extending along the second direction, and the third mounting component slidably mounted on the second slide rail.

[0027] In some embodiments, the mounting mechanism further includes a first driving member connected to the first slide rail, the first driving member being connected to the first mounting member or the second mounting member to drive the first mounting member or the second mounting member to slide along the first slide rail; or...

[0028] The mounting mechanism further includes a second driving member connected to the second slide rail, the second driving member being connected to the third mounting member to drive the third mounting member to slide along the second slide rail.

[0029] In some embodiments, the first driving member includes a first adjusting rod extending along the second direction, the outer periphery of which is provided with a first helical groove extending helically along the second direction. The first adjusting rod is rotatable relative to the first slide rail about a third rotation axis, the third rotation axis extending along the second direction. The first mounting member or the second mounting member includes a first sliding portion slidably mounted on the first helical groove. When the first adjusting rod rotates about the third rotation axis, the inner surface of the first helical groove pushes the first sliding portion to slide along the second direction. Alternatively,

[0030] The second driving member includes a second adjusting rod extending along the second direction. The outer periphery of the second adjusting rod is provided with a second spiral groove extending along the second direction. The second adjusting rod can rotate relative to the second slide rail about a fourth rotation axis, which extends along the second direction. The third mounting member includes a second sliding part slidably mounted on the second spiral groove. When the second adjusting rod rotates about the fourth rotation axis, the inner side of the second spiral groove pushes the second sliding part to slide along the second direction.

[0031] In some embodiments, the first slide rail includes a fourth mounting hole extending along the second direction, the first adjusting rod is rotatably mounted in the fourth mounting hole, and the inner circumferential surface of the fourth mounting hole is provided with a first clearance groove to avoid the first sliding portion; or,

[0032] The second slide rail includes a fifth mounting hole extending along the second direction, the second adjusting rod is rotatably mounted in the fifth mounting hole, and the inner circumferential surface of the fifth mounting hole is provided with a second clearance groove to avoid the second sliding part.

[0033] In some embodiments, at least one of the measuring elements includes a first measuring portion, which is inserted between the articular surface and the medial condyle to measure the distance between the articular surface and the medial condyle and to locate the relative position of the tibial osteotomy piece and the medial condyle; or, the first measuring portion is inserted between the articular surface and the lateral condyle to measure the distance between the articular surface and the lateral condyle and to locate the relative position of the tibial osteotomy piece and the lateral condyle;

[0034] Wherein, the at least one measuring element includes a plurality of measuring elements, wherein the thickness of the first measuring portion of the plurality of measuring elements is different; and / or,

[0035] The thickness of the first measuring part is adjustable.

[0036] In some embodiments, the first measuring part includes an adjustment structure, a first contact part, and a second contact part. The first contact part has a first contact surface on the side opposite to the second contact part, and the first contact surface is used to contact the medial condyle or the lateral condyle. The second contact part has a second contact surface on the side opposite to the first contact part, and the second contact surface is used to contact the joint surface.

[0037] The adjustment structure is used to connect with the first contact portion and the second contact portion, and drive the first contact portion and the second contact portion to move closer to each other or further away from each other, so as to adjust the distance between the first contact surface and the second contact surface.

[0038] In some embodiments, at least one of the first measuring portions is used to insert between the articular surface and the medial condyle, and adapt to the gap between the articular surface and the medial condyle, to measure the distance between the medial condyle and the articular surface, and to locate the relative position of the tibial osteotomy piece and the articular surface; or, at least one of the first measuring portions is used to insert between the articular surface and the lateral condyle, and adapt to the gap between the articular surface and the lateral condyle, to measure the distance between the lateral condyle and the articular surface, and to locate the relative position of the tibial osteotomy piece and the articular surface; and / or,

[0039] At least one of the first measuring parts is used to be inserted between the articular surface and the medial condyle, and the thickness of the first measuring part is adjusted to adapt to the gap between the articular surface and the medial condyle, so as to measure the distance between the medial condyle and the articular surface and locate the relative position of the tibial osteotomy block and the articular surface; or, at least one of the first measuring parts is used to be inserted between the articular surface and the lateral condyle, and the thickness of the first measuring part is adjusted to adapt to the gap between the articular surface and the lateral condyle, so as to measure the distance between the lateral condyle and the articular surface and locate the relative position of the tibial osteotomy block and the articular surface.

[0040] In some embodiments, the first measuring portion includes a first contact surface and a second contact surface opposite to each other, the first contact surface being for contacting the medial condyle or the lateral condyle, the second contact surface being for contacting the articular surface, the first contact surface being a concave surface, and the second contact surface being a convex surface.

[0041] This application embodiment also provides a gap measuring component, including:

[0042] Installation mechanism for connection to tibial osteotomy block;

[0043] At least one measuring element for connection to the mounting mechanism, the at least one measuring element including a first measuring part, the first measuring part including a first contact surface and a second contact surface opposite to each other, the first contact surface for contacting the medial or lateral condyle of the femur, the second contact surface for contacting the articular surface of the tibia, the first contact surface being a concave surface, and the second contact surface being a convex surface or a plane;

[0044] The mounting mechanism can place at least one measuring element in a first measuring position and a second measuring position, with the at least one measuring element located at different positions within the mounting mechanism when placed in the first measuring position and the second measuring position. The measuring element in the first measuring position is inserted between the medial condyle of the femur and the articular surface of the tibia to measure the distance between the medial condyle and the articular surface. The measuring element in the second measuring position is inserted between the lateral condyle of the femur and the articular surface of the tibia to measure the distance between the lateral condyle and the articular surface.

[0045] This application also provides a tibial osteotomy device, comprising:

[0046] Tibial osteotomy block, wherein the tibial osteotomy block has a tibial osteotomy groove; and...

[0047] The tibial osteotomy positioning assembly as described above, or the gap measuring assembly as described above, wherein the mounting mechanism of the tibial osteotomy positioning assembly or the gap measuring assembly is connected to the tibial osteotomy block.

[0048] In some embodiments, the tibial osteotomy device further includes a distance adjustment component, which includes a fixed end and a connecting end opposite each other. The fixed end of the distance adjustment component is used to fix it to the human body, and the connecting end of the distance adjustment component is used to connect to the tibial osteotomy block. The distance adjustment component is used to adjust the distance between the tibial osteotomy block and the fixed end.

[0049] This application also provides an osteotomy system, which includes a tibial osteotomy device and a femoral extramedullary positioning osteotomy device; the tibial osteotomy device is the tibial osteotomy device as described above.

[0050] In some embodiments, the extramedullary femoral osteotomy device includes:

[0051] A femoral osteotomy block, wherein the femoral osteotomy block has a femoral osteotomy groove;

[0052] A gap measuring device includes at least one second measuring part, the second measuring part being inserted between the medial condyles of the tibia and the femur to measure the gap between the tibia and the medial condyle, and the second measuring part being inserted between the lateral condyles of the tibia and the femur to measure the gap between the tibia and the lateral condyle;

[0053] The second measuring unit includes two first measuring surfaces distributed along a third direction. The two first measuring surfaces are used to make one-to-one contact with the inner condyle and the outer condyle. The first measuring surfaces are concave surfaces.

[0054] In some embodiments, the second measuring portion includes a second measuring surface; the second measuring surface is located on the side of the second measuring portion opposite to the first measuring surface;

[0055] Wherein, the second measuring surface is a plane, the plane being used to contact the cut surface of the tibia; or,

[0056] The second measuring surface is a concave surface, and the second measuring surface is used to contact the tibia.

[0057] In some embodiments, the two first measuring surfaces each have a nearest point to the plane;

[0058] Wherein, the distance m between the two nearest points in the direction of the third party is greater than or equal to 25 mm and less than or equal to 75 mm; and / or,

[0059] One of the nearest points is farther from the plane than the other nearest point; the first measuring plane containing the nearest point farther from the plane is used to contact the medial condyle, and the first measuring plane containing the nearest point closer to the plane is used to contact the lateral condyle; and / or,

[0060] The line connecting the two nearest points forms an angle α with the plane that is greater than or equal to 1° and less than or equal to 9°; preferably, the line connecting the two nearest points forms an angle α with the plane that is greater than or equal to 3° and less than or equal to 5°.

[0061] In some embodiments, the first measuring surface includes opposing first and second edges, wherein the first edge of the first measuring surface is closer to another first measuring surface than the second edge; the minimum distance n1 from the first edge to the plane is greater than the minimum distance n2 from the second edge to the plane; and / or,

[0062] The concave surface is a concave curved surface. The first measuring surface intersects with a plane perpendicular to the fourth direction to form a first intersection line. The radius of curvature R1 of the first intersection line of at least one of the first measuring surfaces is greater than or equal to 10 mm. The third direction, the fourth direction, and the thickness direction of the second measuring part are substantially perpendicular to each other; and / or,

[0063] The concave surface is a concave curved surface, and the first measuring surface intersects with a plane perpendicular to the third direction to form a second intersection line. The radius of curvature R2 of the second intersection line of at least one of the first measuring surfaces is greater than or equal to 10 mm.

[0064] The tibial osteotomy positioning component provided in this application uses an installation mechanism to place at least one measuring element at a first measuring position and a second measuring position. When the at least one measuring element is placed at the first measuring position and the second measuring position, it is located at different positions of the installation mechanism. The measuring element at the first measuring position can be inserted between the medial condyle of the femur and the articular surface of the tibia to measure the distance between the medial condyle and the articular surface and to locate the relative position of the tibial osteotomy block and the articular surface. The measuring element at the second measuring position can be inserted between the lateral condyle of the femur and the articular surface of the tibia to measure the distance between the lateral condyle and the articular surface and to locate the relative position of the tibial osteotomy block and the articular surface. Thus, the tibial osteotomy positioning component measures the distance between the medial and / or lateral femoral condyles and the articular surface of the tibia by inserting a measuring element between them. This facilitates the surgeon's determination of the amount of tibial articular surface wear, eliminating the influence of cartilage wear on the positioning of the tibial osteotomy block. Subsequently, by positioning the relative position of the tibial osteotomy block and the articular surface using the measuring element, the amount of osteotomy on the medial or lateral side of the tibia can be evaluated, which is beneficial to improving surgical outcomes. This solves the problem that existing tibial osteotomy positioning components cannot eliminate the influence of cartilage wear on the amount of tibial osteotomy, resulting in inaccurate positioning of the tibial osteotomy block and affecting surgical results. Attached Figure Description

[0065] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0066] Figure 1 A schematic diagram of a tibial osteotomy device, tibia, and femur provided in an embodiment of this application;

[0067] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0068] Figure 3 A schematic diagram of the structure of one embodiment of the tibial osteotomy positioning component provided in this application;

[0069] Figure 4 A cross-sectional view of one embodiment of the tibial osteotomy positioning component provided in this application, wherein the cutting plane is perpendicular to a first direction;

[0070] Figure 5 A schematic diagram of the structure of one embodiment of the first driving component provided in this application;

[0071] Figure 6 A cross-sectional view of another embodiment of the tibial osteotomy positioning component provided in this application, wherein the cutting plane is perpendicular to the first direction;

[0072] Figure 7 A schematic diagram of the structure of one embodiment of the measuring device provided in this application;

[0073] Figure 8 This is a schematic diagram of the structure of an embodiment of the femoral extramedullary positioning osteotomy device, tibia, and femur provided in this application.

[0074] Figure 9 A schematic diagram of the structure of one embodiment of the gap measuring device provided in this application;

[0075] Figure 10 A cross-sectional view of one embodiment of the gap measuring device provided in this application, wherein the cutting plane is perpendicular to the fourth direction;

[0076] Figure 11 A cross-sectional view of one embodiment of the gap measuring device provided in this application, wherein the cutting plane is perpendicular to a third direction;

[0077] Figure 12 This is a cross-sectional view of one embodiment of the femoral extramedullary positioning osteotomy device provided in this application, wherein the cutting plane is perpendicular to the fourth direction.

[0078] Osteotomy system 1; Tibial osteotomy device 10; Tibial osteotomy positioning assembly 11; Mounting mechanism 110; Connector 111; First rotating shaft 1111; Second rotating shaft 1112; Insert piece 1114; Clamping piece 1115; Clamping space 1116; First mounting piece 112; First mounting hole 1121; First threaded hole 1122; First shaft hole 1123; First locking piece 113; First threaded rod 1131; First knob 1132; Second mounting piece 114; Second mounting hole 1141; Second threaded hole 1142; First sliding part 1143; Sliding hole 1144; Second locking piece 115; Second knob 1151; Second threaded rod 1152; First slide rail 116; Fourth mounting hole 1161; First clearance groove 1162; First drive component 117; First adjusting rod 1171; First spiral groove 1172; Third mounting component 118; Third shaft hole 1180; Third mounting hole 1181; Third threaded hole 1182; Second slide rail 1183; Second drive component 1184; Second adjusting rod 1185; Second spiral groove 1186; Second sliding part 1187; Fifth mounting hole 1188; Second clearance groove 1189; Third locking component 119; Third knob 1191; Third threaded rod 1192;

[0079] Measuring component 120; First measuring part 121; First contact surface 1211; Second contact surface 1212; First contact part 1213; Second contact part 1214; Adjustment structure 122; Tibial osteotomy block 12; Tibial osteotomy groove 123; Distance adjustment assembly 13; Fixed end 131; Ankle clamp 1311; Connecting end 132; Femur 300; Medial condyle 310; Lateral condyle 320; Tibia 400; Articular surface 410; First direction X; Second direction Y; Third direction H; Thickness direction Z; Fourth direction T; First rotation axis L1; Second rotation axis L2; ​​Third rotation axis L3; Fourth rotation axis L4;

[0080] Femoral extramedullary positioning osteotomy device 20; gap measuring device 21; second measuring part 211; first measuring surface 2111; first edge 2112; second edge 2113; first intersection line 2114; second intersection line 2115; second measuring surface 2116; connecting part 212; connecting hole 2121; third sliding groove 2122; side 2123; limiting part 2124; femoral osteotomy block 22; femoral osteotomy groove 221; slider 222; limiting groove 223. Detailed Implementation

[0081] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0082] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0083] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0084] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0085] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0086] This application provides a tibial osteotomy positioning component, a gap measuring component, an osteotomy device, and a system. These will be described in detail below.

[0087] First, this application provides a tibial osteotomy positioning component.

[0088] Figure 1 This is a schematic diagram of the structure of an embodiment of the tibial osteotomy device, tibia, and femur provided in this application. Figure 2 for Figure 1 A magnified view of point A in the middle. (See image below.) Figure 1 and Figure 2 As shown, the tibial osteotomy device 10 includes a tibial osteotomy block 12 and a tibial osteotomy positioning component 11. The tibial osteotomy block 12 has a tibial osteotomy groove 123. The tibial osteotomy positioning component 11 is used to connect with the tibial osteotomy block 12, and the tibial osteotomy block 12 is used to position the relative position of the tibial osteotomy block 12 with respect to the articular surface 410 of the tibia 400, so that the surgeon can pass the osteotomy tool through the tibial osteotomy groove 123 of the tibial osteotomy block 12 and accurately perform osteotomy.

[0089] The tibial osteotomy device 10 may further include a distance adjustment component 13, which includes a fixed end 131 and a connecting end 132. The fixed end 131 of the distance adjustment component 13 is used to fix it to the human body, and the connecting end 132 of the distance adjustment component 13 is used to connect with the tibial osteotomy block 12. The distance adjustment component 13 is used to adjust the distance between the tibial osteotomy block 12 and the fixed end 131. Thus, the position or height of the tibial osteotomy block 12 in the length direction of the tibia 400 can be adjusted by the distance adjustment component 13, and the adjusted position or height of the tibial osteotomy block 12 is kept stable relative to the tibia 400.

[0090] During tibial osteotomy, the surgeon can fix the fixed end 131 of the distance adjustment component 13 to the ankle or other parts of the body, so that the connecting end 132 and the fixed end 131 of the distance adjustment component 13 are distributed sequentially along the length of the tibia 400, with the connecting end 132 being closer to the knee joint than the fixed end 131. Then, by adjusting the distance between the connecting end 132 and the fixed end 131 using the distance adjustment component 13, the distance between the tibial osteotomy block 12 connected to the connecting end 132 and the fixed end 131 is adjusted along the length of the tibia 400.

[0091] The fixed end 131 of the distance adjustment component 13 can be equipped with an ankle clip 1311, which is used to clamp and fix the ankle of the human body, thereby fixing the fixed end 131 of the distance adjustment component 13 to the ankle of the human body. Of course, the fixed end 131 of the distance adjustment component 13 can also be fixed to the structure of the human body in other ways.

[0092] In some embodiments, such as Figure 2 and Figure 3 As shown, the tibial osteotomy positioning assembly 11 may include a mounting mechanism 110 and at least one measuring element 120. The mounting mechanism 110 is used to connect with the tibial osteotomy block 12, and the at least one measuring element 120 is used to connect with the mounting mechanism 110. The mounting mechanism 110 can position the at least one measuring element 120 in a first measuring position and a second measuring position. The at least one measuring element 120 is positioned in the first measuring position (e.g., Figure 1 and Figure 2 (As shown) and the second measuring position are located at different positions on the mounting mechanism 110. Moreover, the measuring member 120 in the first measuring position is used to insert between the medial condyle 310 of the femur 300 and the articular surface 410 of the tibia 400 to measure the distance between the medial condyle 310 and the articular surface 410, and to locate the relative position of the tibial osteotomy piece 12 and the articular surface 410; the measuring member 120 in the second measuring position is used to insert between the lateral condyle 320 of the femur 300 and the articular surface 410 of the tibia 400 to measure the distance between the lateral condyle 320 and the articular surface 410, and to locate the relative position of the tibial osteotomy piece 12 and the articular surface 410.

[0093] The tibial osteotomy positioning component 11 provided in this application embodiment places at least one measuring element 120 in a first measuring position and a second measuring position through a mounting mechanism 110, so that the at least one measuring element 120 is located in different positions of the mounting mechanism 110 when it is in the first measuring position and the second measuring position. The measuring element 120 in the first measuring position can be inserted between the medial condyle 310 of the femur 300 and the articular surface 410 of the tibia 400 to measure the distance between the medial condyle 310 and the articular surface 410 and to locate the relative position of the tibial osteotomy block 12 and the articular surface 410. The measuring element 120 in the second measuring position can be inserted between the lateral condyle 320 of the femur 300 and the articular surface 410 of the tibia 400 to measure the distance between the lateral condyle 320 and the articular surface 410 and to locate the relative position of the tibial osteotomy block 12 and the articular surface 410. Thus, the tibial osteotomy positioning component 11 measures the distance between the medial condyle 310 and / or lateral condyle 320 of the femur 300 and the articular surface 410 of the tibia 400 by inserting the measuring element 120 between them. This facilitates the surgeon in determining the amount of wear on the articular surface 410 of the tibia 400, thus eliminating the influence of cartilage wear on the positioning of the tibial osteotomy block 12. Subsequently, by positioning the relative position of the tibial osteotomy block 12 and the articular surface 410 using the measuring element 120, the amount of osteotomy on the medial or lateral side of the tibia 400 can be evaluated, which is beneficial to improving the surgical outcome. This solves the problem that the existing tibial osteotomy positioning component 11 cannot eliminate the influence of cartilage wear on the amount of tibial osteotomy, resulting in inaccurate positioning of the tibial osteotomy block 12 and affecting the surgical outcome.

[0094] It should be noted that the number of measuring elements 120 can be one or more. When there is only one measuring element 120, it can be detachably installed at different positions of the mounting mechanism 110, thereby allowing the measuring element 120 to switch between a first measuring position and a second measuring position. Specifically, the measuring element 120 can be detachably installed at one position of the mounting mechanism 110 so that the mounting mechanism 110 can place the measuring element 120 at the first measuring position. Then, the measuring element 120 can be separated from the mounting mechanism 110 and detachably installed at another position of the mounting mechanism 110, thereby allowing the mounting mechanism 110 to place the measuring element 120 at the second measuring position.

[0095] When there are multiple measuring elements 120, two measuring elements 120 can be installed at different positions on the mounting mechanism 110, allowing the mounting mechanism 110 to place one measuring element 120 in a first measuring position and the other measuring element 120 in a second measuring position. Specifically, one measuring element 120 can be detachably installed at one position on the mounting mechanism 110 to place it in the first measuring position, and another measuring element 120 can be detachably installed at another position on the mounting mechanism 110 to place it in the second measuring position. Multiple measuring elements 120 can be detachably or non-detachably connected to the mounting mechanism 110.

[0096] During actual surgery, the surgeon can use the mounting mechanism 110 to place only one measuring element 120 in the first measuring position, or only one measuring element 120 in the second measuring position, or simultaneously place one measuring element 120 in the first measuring position and another measuring element 120 in the second measuring position. Alternatively, the surgeon can use the mounting mechanism 110 to first place one measuring element 120 in the first (or second) measuring position, and then place the measuring element 120 in the second (or first) measuring position.

[0097] In some embodiments, such as Figure 3 As shown, the mounting mechanism 110 may include a connector 111 for connecting to the tibial osteotomy block 12, thereby connecting the mounting mechanism 110 to the tibial osteotomy block 12. The connector 111 may be detachably connected to the tibial osteotomy block 12, thus allowing the mounting mechanism 110 to be detachably connected to the tibial osteotomy block 12. After the tibial osteotomy positioning assembly 11 has completed the positioning of the tibial osteotomy block 12, the mounting mechanism 110 of the tibial osteotomy positioning assembly 11 can be separated from the tibial osteotomy block 12, so that the surgeon can pass the osteotomy tool through the tibial osteotomy groove 123 of the tibial osteotomy block 12 and accurately perform osteotomy on the tibia 400, avoiding interference from the tibial osteotomy positioning assembly 11 to the surgeon's osteotomy operation.

[0098] Specifically, the connector 111 includes a plug-in piece 1114, which is used to insert into the tibial osteotomy groove 123 of the tibial osteotomy block 12, thereby making the connector 111 detachably connected to the tibial osteotomy block 12. In addition, the connector 111 may also include a clamping piece 1115 disposed at a distance from the plug-in piece 1114, forming a clamping space 1116 between the clamping piece 1115 and the plug-in piece 1114. When the plug-in piece 1114 is inserted into the tibial osteotomy groove 123 of the tibial osteotomy block 12, a portion of the tibial osteotomy block 12 is clamped in the clamping space 1116 between the clamping piece 1115 and the plug-in piece 1114, which can make the connection between the connector 111 and the tibial osteotomy block 12 more stable.

[0099] In other embodiments, the connector 111 can be detachably connected to the tibial osteotomy block 12 via a snap-fit ​​structure, screw fixation, or other means. Alternatively, the connector 111 can be integrally connected to the tibial osteotomy block 12 or connected in other non-detachable ways, as long as the position of the measuring element 120 relative to the tibial osteotomy block 12 remains stable when the measuring element 120 is connected to the mounting mechanism 110.

[0100] In some embodiments, such as Figure 2 and Figure 3 As shown, the mounting mechanism 110 can include a first mounting member 112 and a second mounting member 114. The first mounting member 112 is used to connect with at least one measuring member 120 and place the at least one measuring member 120 in a first measuring position; the second mounting member 114 is used to connect with at least one measuring member 120 and place the at least one measuring member 120 in a second measuring position. Because the positions of the first mounting member 112 and the second mounting member 114 are different, when the measuring member 120 is connected to the first mounting member 112 or the second mounting member 114, the measuring member 120 can be located in different positions of the mounting mechanism 110 when placed in the first measuring position and the second measuring position.

[0101] At least one of the first mounting member 112 and the second mounting member 114 can be detachably connected to at least one measuring member 120. Thus, at least one measuring member 120 can be detachably connected to one of the first mounting member 112 and the second mounting member 114 to place at least one measuring member 120 in one of the first measuring position and the second measuring position. Then, at least one measuring member 120 can be detached and connected to the other of the first mounting member 112 and the second mounting member 114 to place at least one measuring member 120 in the other of the first measuring position and the second measuring position.

[0102] It should be noted that the first mounting member 112 and the second mounting member 114 can both be detachably connected to at least one measuring member 120, or only the first mounting member 112 or the second mounting member 114 can be detachably connected to at least one measuring member 120. Of course, the former makes the disassembly and installation of the measuring member 120 more convenient, so that the surgeon can switch the measuring member 120 between the first measuring position and the second measuring position, which helps to reduce the number of measuring members 120.

[0103] In some embodiments, such as Figure 3 and Figure 4 As shown, a first mounting hole 1121 can be provided in the first mounting member 112. The first mounting hole 1121 extends through the first mounting member 112 along the first direction X. At least one measuring member 120 can be inserted into the first mounting hole 1121, so that at least one measuring member 120 is detachably connected to the first mounting member 112. By providing the first mounting hole 1121 in the first mounting member 112 and inserting the measuring member 120 into the first mounting hole 1121, the measuring member 120 can be detachably connected to the first mounting member 112, making the connection and disassembly of the measuring member 120 to the first mounting member 112 more convenient.

[0104] The mounting mechanism 110 may further include a first locking member 113 connected to the first mounting member 112. The first locking member 113 is used to lock at least one measuring member 120 and the first mounting member 112, so that after the measuring member 120 is connected to the first mounting member 112, the position of the measuring member 120 relative to the first mounting member 112 remains stable, so that the mounting mechanism 110 can more accurately place the measuring member 120 in the first measuring position.

[0105] Specifically, the first mounting member 112 may have a first threaded hole 1122 communicating with the first mounting hole 1121, and the first locking member 113 includes a first knob 1132 and a first threaded rod 1131. The first threaded rod 1131 is threadedly connected to the first threaded hole 1122. The first knob 1132 is located at the end of the first threaded rod 1131 away from the first mounting hole 1121. The end of the first threaded rod 1131 away from the first knob 1132 is used to abut against at least one measuring member 120 to lock at least one measuring member 120 and the first mounting member 112. Therefore, by applying rotational force to the first knob 1132, the surgeon can cause the first threaded rod 1131 to rotate within the first threaded hole 1122. This allows the first threaded rod 1131 to move along the extension direction of the first threaded hole 1122, causing the end of the first threaded rod 1131 near the first mounting hole 1121 to abut against the measuring element 120 inserted into the first mounting hole 1121. This creates significant pressure between the first threaded rod 1131 and the measuring element 120, as well as between the measuring element 120 and the inner circumferential surface of the first mounting hole 1121. This keeps the position of the measuring element 120 relative to the first mounting element 112 stable, preventing relative movement of the measuring element 120 within the first mounting hole 1121.

[0106] In other embodiments, the first mounting component 112 can be connected to the measuring component 120 by means of snap-fit, screw connection, pin connection, etc., depending on the structure of the first mounting component 112 and the measuring component 120.

[0107] In some embodiments, such as Figure 3 and Figure 4 As shown, a second mounting hole 1141 can be provided in the second mounting member 114. The second mounting hole 1141 extends through the second mounting member 114 along the first direction X. At least one measuring member 120 can be inserted into the second mounting hole 1141, so that at least one measuring member 120 is detachably connected to the second mounting member 114. By providing a second mounting hole 1141 in the second mounting member 114 and inserting the measuring member 120 into the second mounting hole 1141, the measuring member 120 can be detachably connected to the second mounting member 114, making the connection and disassembly of the measuring member 120 to the second mounting member 114 more convenient.

[0108] The mounting mechanism 110 may further include a second locking member 115 connected to the second mounting member 114. The second locking member 115 is used to lock at least one measuring member 120 and the second mounting member 114, so that after the measuring member 120 is connected to the second mounting member 114, the position of the measuring member 120 relative to the second mounting member 114 remains stable, so that the mounting mechanism 110 can more accurately place the measuring member 120 in the second measuring position.

[0109] Specifically, the second mounting member 114 may have a second threaded hole 1142 communicating with the second mounting hole 1141. The second locking member 115 includes a second knob 1151 and a second threaded rod 1152. The second threaded rod 1152 is threadedly connected to the second threaded hole 1142. The second knob 1151 is located at one end of the second threaded rod 1152 away from the second mounting hole 1141. The end of the second threaded rod 1152 away from the second knob 1151 is used to abut against at least one measuring element 120 to lock at least one measuring element 120 and the second mounting member 114. Therefore, by applying rotational force to the second knob 1151, the surgeon can cause the second threaded rod 1152 to rotate within the second threaded hole 1142. This allows the second threaded rod 1152 to move along the extension direction of the second threaded hole 1142, causing one end of the second threaded rod 1152 near the second mounting hole 1141 to abut against the measuring element 120 inserted into the second mounting hole 1141. This creates significant pressure between the second threaded rod 1152 and the measuring element 120, and between the measuring element 120 and the inner circumferential surface of the second mounting hole 1141. This keeps the position of the measuring element 120 relative to the second mounting element 114 stable, preventing relative movement of the measuring element 120 within the second mounting hole 1141.

[0110] In other embodiments, the second mounting member 114 can be connected to the measuring member 120 by means of snap-fit, screw connection, pin connection, etc., depending on the structure of the second mounting member 114 and the measuring member 120.

[0111] In some embodiments, such as Figure 3 and Figure 4 As shown, the first mounting member 112 and the second mounting member 114 can be sequentially distributed along the second direction Y, and the first mounting member 112 and the second mounting member 114 can rotate together relative to the connecting member 111 around the first rotation axis L1; the first direction X, the second direction Y, and the first rotation axis L1 are basically perpendicular to each other. Therefore, when connecting the measuring member 120 to the first mounting member 112, the first mounting member 112 and the second mounting member 114 can be rotated together relative to the connecting member 111 around the first rotation axis L1 by a certain angle, so that the first mounting member 112 is offset from the medial condyle 310 of the femur 300 by a certain angle, avoiding the first mounting member 112 being too close to the medial condyle 310 of the femur 300, which would cause the medial condyle 310 to be located on the moving path of the measuring member 120, so that the measuring member 120 is interfered with by the medial condyle 310 of the femur 300 during the connection process between the measuring member 120 and the first mounting member 112.

[0112] Similarly, when connecting the measuring component 120 to the second mounting component 114, the first mounting component 112 and the second mounting component 114 can be rotated together relative to the connecting component 111 around the first rotation axis L1 by a certain angle, so that the second mounting component 114 is offset from the lateral condyle 320 of the femur 300 by a certain angle, so as to avoid the second mounting component 114 being too close to the lateral condyle 320 of the femur 300, which would cause the lateral condyle 320 to be located on the moving path of the measuring component 120, so that the measuring component 120 is interfered with by the lateral condyle 320 of the femur 300 during the connection process between the measuring component 120 and the second mounting component 114.

[0113] In some embodiments, such as Figure 4 As shown, the mounting mechanism 110 may further include a first rotating shaft 1111 extending along the first rotation axis L1. The connecting member 111 is connected to the first mounting member 112 or the second mounting member 114 through the first rotating shaft 1111. The first mounting member 112 and the second mounting member 114 can rotate together around the first rotating shaft 1111, thereby causing the first mounting member 112 and the second mounting member 114 to rotate together relative to the connecting member 111 around the first rotation axis L1.

[0114] Specifically, the first mounting member 112 has a first shaft hole 1123 at one end along the first rotation axis L1, and the first shaft hole 1123 extends along the first rotation axis L1. The first shaft hole 1123 and the first threaded hole 1122 are distributed on both sides of the first mounting hole 1121. The insertion piece 1114 and the clamping piece 1115 of the connector 111 are distributed sequentially along the first rotation axis L1. The insertion piece 1114 and the clamping piece 1115 are respectively substantially perpendicular to the first rotation axis L1. The first rotating shaft 1111 extends along the first rotation axis L1, and the first rotating shaft 1111 extends out of the clamping piece 1115 on the side opposite to the insertion piece 1114. The first rotating shaft 1111 is rotatably mounted in the first shaft hole 1123, so that the connector 111 is rotatably connected to the first mounting member 112 through the first rotating shaft 1111, and the first connector 111 can rotate around the first rotating shaft 1111. Since the first connector 111 is connected to the second connector 111, when the first connector 111 rotates around the first rotating shaft 1111, it can drive the second connector 111 to rotate together around the first rotating shaft 1111.

[0115] It should be noted that when the connector 111 is rotatably connected to the second mounting part 114 via the first rotating shaft 1111, the way the first rotating shaft 1111 is rotatably connected to the second mounting part 114 is basically the same as the way the first rotating shaft 1111 is rotatably connected to the first mounting part 112 as described above, and will not be repeated here.

[0116] In other embodiments, the connector 111 can be rotatable about the first rotating shaft 1111, thereby allowing the first mounting member 112 and the second mounting member 114 to rotate together relative to the connector 111 about the first rotation axis L1. Specifically, a second shaft hole extending along the first rotation axis L1 can be provided in the connector 111, and the first rotating shaft 1111 connected to the first connector 111 or the second connector 111 extends along the first rotation axis L1, and the first rotating shaft 1111 is rotatably mounted in the second shaft hole, so that the connector 111 can rotate about the rotating shaft.

[0117] In some embodiments, such as Figure 3 and Figure 4 As shown, the first mounting member 112 and the second mounting member 114 can be sequentially distributed along the second direction Y. Furthermore, the first mounting member 112 and the second mounting member 114 can move relative to each other in the second direction Y. Therefore, the distance between the first mounting member 112 and the second mounting member 114 in the second direction Y can be adjusted according to the distance between the medial condyle 310 and the lateral condyle 320 of the femur 300 for different patients, so that the measuring member 120 connected to the first mounting member 112 corresponds to the position of the medial condyle 310 of the femur 300, and the measuring member 120 connected to the second mounting member 114 corresponds to the position of the lateral condyle 320 of the femur 300.

[0118] The mounting mechanism 110 may further include a first slide rail 116 extending along the second direction Y. A first mounting member 112 is connected to a second mounting member 114 via the first slide rail 116, and either the first mounting member 112 or the second mounting member 114 is slidably mounted on the first slide rail 116. When the first mounting member 112 or the second mounting member 114 slides relative to each other along the first slide rail 116, the first mounting member 112 and the second mounting member 114 can move stably relative to each other in the second direction Y.

[0119] In some embodiments, such as Figure 4 and Figure 5 As shown, the mounting mechanism 110 may further include a first driving member 117 connected to the first slide rail 116. The first driving member 117 is connected to the first mounting member 112 to drive the first mounting member 112 to slide along the first slide rail 116. When the first mounting member 112 is slidably mounted on the first slide rail 116, the first driving member 117 drives the first mounting member 112 to slide along the first slide rail 116, making it easier to move the first mounting member 112 closer to or further away from the second mounting member 114, and facilitating more precise adjustment of the distance between the first mounting member 112 and the second mounting member 114.

[0120] Alternatively, the first driving member 117 can be connected to the second mounting member 114 to drive the second mounting member 114 to slide along the first slide rail 116. When the second mounting member 114 is slidably mounted on the first slide rail 116, the first driving member 117 drives the second mounting member 114 to slide along the first slide rail 116, making it easier to move the second mounting member 114 closer to or further away from the first mounting member 112, and facilitating more precise adjustment of the distance between the first mounting member 112 and the second mounting member 114.

[0121] Specifically, such as Figure 3 and Figure 4 As shown, the first driving member 117 may include a first adjusting rod 1171 extending along the second direction Y. The outer periphery of the first adjusting rod 1171 is provided with a first spiral groove 1172 extending spirally along the second direction Y. The first adjusting rod 1171 is rotatable relative to the first slide rail 116 about a third rotation axis L3, which extends along the second direction Y. The second mounting member 114 includes a first sliding part 1143, which is slidably mounted on the first spiral groove 1172. When the first adjusting rod 1171 rotates about the third rotation axis L3, the inner surface of the first spiral groove 1172 pushes the first sliding part 1143 to slide along the second direction Y.

[0122] It is understood that by opening a first spiral groove 1172 extending spirally in the second direction Y on the outer periphery of the first adjusting rod 1171 extending in the second direction Y, and sliding the first sliding part 1143 of the second mounting member 114 in the first spiral groove 1172, when the surgeon drives the first adjusting rod 1171 to rotate around the third rotation axis L3, the inner side of the first spiral groove 1172 can abut against the first sliding part 1143 of the second mounting member 114, and push the first sliding part 1143 of the second mounting member 114 to slide in the second direction Y, thereby driving the second mounting member 114 to move in the second direction Y, so that the second mounting member 114 moves closer to or away from the first mounting member 112.

[0123] In other embodiments, when the first mounting member 112 is slidably connected to the first slide rail 116, the first mounting member 112 may also include a first sliding portion 1143. The first sliding portion 1143 of the first mounting member 112 is slidably mounted on the first spiral groove 1172 in a manner substantially the same as the first sliding portion 1143 of the second mounting member 114 being slidably mounted on the first spiral groove 1172 described above. When the surgeon drives the first adjusting rod 1171 to rotate around the third rotation axis L3, the inner surface of the first spiral groove 1172 can abut against the first sliding portion 1143 of the first mounting member 112 and push the first sliding portion 1143 of the first mounting member 112 to slide along the second direction Y, thereby causing the first mounting member 112 to move along the second direction Y, making the first mounting member 112 move closer to or away from the second mounting member 114.

[0124] In some embodiments, the first slide rail 116 may include a fourth mounting hole 1161 extending along the second direction Y, and the first adjusting rod 1171 may be rotatably mounted in the fourth mounting hole 1161, thereby making the first adjusting rod 1171 more stably rotatably connected to the first slide rail 116.

[0125] A first clearance groove 1162 is provided on the inner circumferential surface of the fourth mounting hole 1161 to avoid the first sliding part 1143. Therefore, when the first adjusting rod 1171 rotates around the third rotation axis L3, causing the inner side of the first spiral groove 1172 to abut against the first sliding part 1143 of the first mounting member 112, and pushing the first sliding part 1143 of the first mounting member 112 to slide along the second direction Y, the first slide rail 116 can avoid the first sliding part 1143, allowing the first sliding part 1143 to slide more smoothly along the second direction Y.

[0126] Specifically, one end of the second mounting member 114 has a sliding hole 1144 extending along the second direction Y. The first slide rail 116 is slidably mounted in the sliding hole 1144, thereby slidably connecting the second mounting member 114 and the first slide rail 116. The first clearance groove 1162 is formed on the side of the fourth mounting hole 1161 away from the second mounting hole 1141. The first sliding part 1143 is separately disposed from the second mounting member 114. After the first slide rail 116 is slidably mounted in the sliding hole 1144, the first sliding part 1143 is then connected to the second mounting member 114, so that the first sliding part 1143 passes through the first clearance groove 1162 and is inserted into the first spiral slide groove 1172. The first sliding part 1143 can pass through the inner wall of the sliding hole 1144 and the first clearance groove 1162 from the end face of the second mounting member 114 with the sliding hole 1144 and be inserted into the first spiral slide groove 1172. The first sliding part 1143 and the second mounting part 114 can be detachably connected or non-detachably connected.

[0127] In other embodiments, such as Figure 6 As shown, the mounting mechanism 110 may further include a third mounting member 118 for connection with at least one measuring element 120. The third mounting member 118 is movable relative to the connecting member 111 to place at least one measuring element 120 in a first measuring position and a second measuring position.

[0128] The third mounting component 118 can be detachably connected to at least one measuring component 120. After surgery, the third mounting component 118 can be separated from the measuring component 120, which helps to reduce the overall volume of the tibial osteotomy positioning assembly 11 and thus requires less storage space. Moreover, when there are multiple measuring components 120, different models of measuring components 120 can be conveniently connected to the third mounting component 118 in sequence, so that different models of measuring components 120 can be used to measure the distance between the articular surface 410 and the medial condyle 310 or the lateral condyle 320.

[0129] In some embodiments, a third mounting hole 1181 may be provided in the third mounting member 118, the third mounting hole 1181 extending through the third mounting member 118 along a first direction X, and at least one measuring member 120 may be inserted into the third mounting hole 1181, so that at least one measuring member 120 is detachably connected to the third mounting member 118. By providing a third mounting hole 1181 in the third mounting member 118 and inserting the measuring member 120 into the third mounting hole 1181, the measuring member 120 and the third mounting member 118 can be detachably connected, making the connection and disassembly of the measuring member 120 and the third mounting member 118 more convenient.

[0130] The mounting mechanism 110 also includes a third locking member 119 connected to the third mounting member 118. The third locking member 119 is used to lock at least one measuring member 120 and the third mounting member 118, so that after the measuring member 120 is connected to the third mounting member 118, the position of the measuring member 120 relative to the third mounting member 118 remains stable, so that the third mounting member 118 can more accurately place the measuring member 120 in the first measuring position and the second measuring position.

[0131] Specifically, the third mounting member 118 may have a third threaded hole 1182 communicating with the third mounting hole 1181, and the third locking member 119 includes a third knob 1191 and a third threaded rod 1192. The third threaded rod 1192 is threadedly connected to the third threaded hole 1182. The third knob 1191 is located at one end of the third threaded rod 1192 away from the third mounting hole 1181. The end of the third threaded rod 1192 away from the third knob 1191 is used to abut against at least one measuring member 120 to lock at least one measuring member 120 and the third mounting member 118. Therefore, by applying rotational force to the third knob 1191, the surgeon can cause the third threaded rod 1192 to rotate within the third threaded hole 1182. This allows the third threaded rod 1192 to move along the extension direction of the third threaded hole 1182, causing one end of the third threaded rod 1192 near the third mounting hole 1181 to abut against the measuring element 120 inserted into the third mounting hole 1181. This creates significant pressure between the third threaded rod 1192 and the measuring element 120, as well as between the measuring element 120 and the inner circumferential surface of the third mounting hole 1181. This keeps the position of the measuring element 120 relative to the third mounting element 118 stable, preventing relative movement of the measuring element 120 within the third mounting hole 1181.

[0132] In other embodiments, the third mounting component 118 can be connected to the measuring component 120 by means of snap-fit, screw connection, pin connection, etc., depending on the structure of the third mounting component 118 and the measuring component 120.

[0133] In some embodiments, the third mounting member 118 can be movably connected to the connector 111 to position the measuring member 120 at the first measuring position and the second measuring position. Alternatively, the third mounting member 118 can be rotatably connected to the connector 111 to position the measuring member 120 at the first measuring position and the second measuring position. Of course, the former allows the third mounting member 118 to move the measuring member 120 between the first measuring position and the second measuring position more quickly.

[0134] In some embodiments, the third mounting member 118 is movable relative to the connecting member 111 along a second direction Y to place at least one measuring member 120 at a first measuring position and a second measuring position, wherein the first direction X and the second direction Y are substantially perpendicular. When the mounting mechanism 110 is connected to the tibial osteotomy block 12, the second direction Y is consistent with the distribution direction of the medial condyle 310 and the lateral condyle 320 of the femur 300. By moving the third mounting member 118 relative to the connecting member 111 along a second direction Y that is substantially perpendicular to the first direction X, the measuring member 120 connected to the third mounting member 118 can be moved along the distribution direction of the medial condyle 310 and the lateral condyle 320 of the femur 300, thereby accurately placing the measuring member 120 at the first measuring position and the second measuring position.

[0135] The mounting mechanism 110 may also include a second slide rail 1183 connected to the connector 111. The second slide rail 1183 extends along the second direction Y. The third mounting member 118 is slidably mounted on the second slide rail 1183, thereby allowing the third mounting member 118 to move more stably relative to the connector 111 along the second direction Y. When the third mounting member 118 moves relative to the second slide rail 1183, it can drive the measuring member 120 to switch between the first measuring position and the second measuring position.

[0136] In some embodiments, the third mounting member 118 can also rotate relative to the connecting member 111 about the second rotation axis L2, with the first direction X, the second direction Y, and the second rotation axis L2 being substantially perpendicular to each other. When connecting the measuring member 120 to the third mounting member 118, the third mounting member 118 can be rotated about the second rotation axis L2 about a certain angle relative to the connecting member 111, so that the third mounting member 118 is offset from the medial condyle 310 or lateral condyle 320 of the femur 300 by a certain angle, so as to avoid the distance between the third mounting member 118 and the medial condyle 310 or lateral condyle 320 of the femur 300 being too close, which would cause the measuring member 120 to be interfered with by the medial condyle 310 of the femur 300 during the connection process between the measuring member 120 and the third mounting member 118.

[0137] The mounting mechanism 110 also includes a second rotating shaft 1112 extending along the second rotation axis L2. The third mounting member 118 is connected to the connector 111 through the second rotating shaft 1112. The third mounting member 118 or the connector 111 can rotate around the second rotating shaft 1112, thereby causing the third mounting member 118 to rotate relative to the connector 111 around the first rotation axis L1.

[0138] Specifically, the second rotating shaft 1112 extends along the second rotation axis L2 from the side of the clamping piece 1115 of the connector 111 facing away from the insertion piece 1114. A third shaft hole 1180 extending along the second rotation axis L2 is provided in the second slide rail 1183. The second rotating shaft 1112 is rotatably mounted in the third shaft hole 1180, allowing the second slide rail 1183 to rotate around the second rotating shaft 1112, thereby driving the third mounting piece 118 to rotate around the second rotating shaft 1112, and thus causing the third mounting piece 118 to rotate relative to the connector 111 around the first rotation axis L1. Alternatively, the second rotating shaft 1112 can be rotatably connected to the connector 111, allowing the connector 111 to rotate around the second rotating shaft 1112, thereby causing the third mounting piece 118 to rotate relative to the connector 111 around the first rotation axis L1.

[0139] In some embodiments, the mounting mechanism 110 further includes a second driving member 1184 connected to the second slide rail 1183. The second driving member 1184 is connected to the third mounting member 118 to drive the third mounting member 118 to slide along the second slide rail 1183. When the third mounting member 118 is slidably mounted on the second slide rail 1183, driving the third mounting member 118 to slide along the second slide rail 1183 via the third driving member makes it easier to move the third mounting member 118 along the second direction Y, and facilitates precise adjustment of the moving distance of the third mounting member 118.

[0140] Specifically, the second driving member 1184 may include a second adjusting rod 1185 extending along the second direction Y. The outer periphery of the second adjusting rod 1185 is provided with a second helical groove 1186 extending along the second direction Y. The second adjusting rod 1185 can rotate relative to the second slide rail 1183 about a fourth rotation axis L4, which extends along the second direction Y. The third mounting member 118 includes a second sliding part 1187, which is slidably mounted on the second helical groove 1186. When the second adjusting rod 1185 rotates about the fourth rotation axis L4, the inner surface of the second helical groove 1186 pushes the second sliding part 1187 to slide along the second direction Y.

[0141] It is understood that by opening a second spiral groove 1186 extending spirally in the second direction Y on the outer periphery of the second adjusting rod 1185 extending in the second direction Y, and slidably mounting the second sliding part 1187 of the third mounting member 118 on the second spiral groove 1186, when the surgeon drives the second adjusting rod 1185 to rotate around the fourth rotation axis L4, the inner side of the second spiral groove 1186 can abut against the second sliding part 1187 of the third mounting member 118, and push the second sliding part 1187 of the third mounting member 118 to slide in the second direction Y, thereby driving the third mounting member 118 to move in the second direction Y.

[0142] In some embodiments, the second slide rail 1183 may include a fifth mounting hole 1188 extending along the second direction Y, and the second adjusting rod 1185 may be rotatably mounted in the fifth mounting hole 1188, thereby making the second adjusting rod 1185 more stably rotatably connected to the second slide rail 1183.

[0143] A second clearance groove 1189 is provided on the inner circumferential surface of the fifth mounting hole 1188 to avoid the second sliding part 1187. Therefore, when the second adjusting rod 1185 rotates around the fourth rotation axis L4, causing the inner side of the second spiral groove 1186 to abut against the second sliding part 1187 of the third mounting member 118, and pushing the second sliding part 1187 of the third mounting member 118 to slide along the second direction Y, the second slide rail 1183 can avoid the second sliding part 1187, allowing the second sliding part 1187 to slide more smoothly along the second direction Y.

[0144] In some embodiments, at least one measuring element 120 includes a first measuring portion 121 for insertion between the articular surface 410 and the medial condyle 310 to measure the distance between the articular surface 410 and the medial condyle 310 and to locate the relative position of the tibial osteotomy block 12 and the medial condyle 310. At least one measuring element 120 may include a plurality of measuring elements 120, wherein the thickness of the first measuring portion 121 of the plurality of measuring elements 120 is different.

[0145] At least one first measuring part 121 can be inserted between the articular surface 410 and the medial condyle 310 and adapted to the gap between the articular surface 410 and the medial condyle 310 to measure the distance between the medial condyle 310 and the articular surface 410 and to locate the relative position of the tibial osteotomy block 12 and the articular surface 410.

[0146] It should be noted that after inserting the first measuring part 121 of a measuring element 120 between the articular surface 410 and the medial condyle 310, the surgeon can, based on experience, determine whether the thickness of the first measuring part 121 is suitable for the gap between the articular surface 410 and the medial condyle 310. If so, the overall thickness of the first measuring part 121 of the measuring element 120 is basically consistent with the distance between the medial condyle 310 and the articular surface 410, thereby achieving the measurement of the distance between the medial condyle 310 and the articular surface 410. If not, the surgeon can replace the measuring element 120 with a different thickness of the first measuring part 121 until the first measuring part 121 of the measuring element 120 is suitable for the gap between the articular surface 410 and the medial condyle 310, thus achieving the measurement of the distance between the medial condyle 310 and the articular surface 410.

[0147] Similarly, the first measuring part 121 is used to insert between the articular surface 410 and the lateral condyle 320 to measure the distance between the articular surface 410 and the lateral condyle 320, and to locate the relative position of the tibial osteotomy piece 12 and the lateral condyle 320. At least one first measuring part 121 can be used to insert between the articular surface 410 and the lateral condyle 320 and to adapt to the gap between the articular surface 410 and the lateral condyle 320, in order to measure the distance between the lateral condyle 320 and the articular surface 410, and to locate the relative position of the tibial osteotomy piece 12 and the articular surface 410.

[0148] The method of measuring the distance between the lateral condyle 320 and the articular surface 410 by at least one measuring element 120 and locating the relative position of the tibial osteotomy block 12 and the articular surface 410 is basically the same as the method of measuring the distance between the medial condyle 310 and the articular surface 410 by at least one measuring element 120 and locating the relative position of the tibial osteotomy block 12 and the articular surface 410 described above, and will not be repeated here.

[0149] In other embodiments, the thickness of the first measuring portion 121 of the measuring element 120 can be adjusted. The first measuring portion 121 of the measuring element 120 can be adjusted to different thicknesses, so that when the first measuring portion 121 of the measuring element 120 measures the lateral condyle 320 or the distance between the lateral condyle 320 and the joint surface 410, it is not necessary to replace different measuring elements 120, which helps to improve measurement efficiency and reduce the number of measuring elements 120.

[0150] When measuring the distance between the medial condyle 310 and the articular surface 410 using the first measuring part 121 of the measuring member 120, at least one first measuring part 121 can be inserted between the articular surface 410 and the medial condyle 310, and the thickness of the first measuring part 121 can be adjusted to match the gap between the articular surface 410 and the medial condyle 310, so as to measure the distance between the medial condyle 310 and the articular surface 410 and locate the relative position of the tibial osteotomy block 12 and the articular surface 410.

[0151] When measuring the distance between the lateral condyle 320 and the articular surface 410 using the first measuring part 121 of the measuring member 120, at least one first measuring part 121 can be inserted between the articular surface 410 and the lateral condyle 320, and the thickness of the first measuring part 121 can be adjusted to fit the gap between the articular surface 410 and the lateral condyle 320, so as to measure the distance between the lateral condyle 320 and the articular surface 410 and locate the relative position of the tibial osteotomy block 12 and the articular surface 410.

[0152] In some embodiments, such as Figure 7 As shown, the first measuring part 121 can include a first contact part 1213 and a second contact part 1214. The first contact part 1213 has a first contact surface 1211 on the side opposite to the second contact part 1214, which is used to contact the medial condyle 310 or the lateral condyle 320. The second contact part 1214 has a second contact surface 1212 on the side opposite to the first contact part 1213, which is used to contact the articular surface 410. The distance between the first contact surface 1211 and the second contact surface 1212 is the thickness of the first measuring part 121.

[0153] The first measuring part 121 may further include an adjustment structure 122, which is used to connect with the first contact part 1213 and the second contact part 1214 and drive the first contact part 1213 and the second contact part 1214 to move closer to each other or further away from each other, so as to adjust the distance between the first contact surface 1211 and the second contact surface 1212, thereby realizing the adjustment of the thickness of the first measuring part 121.

[0154] Specifically, the first contact portion 1213 and the second contact portion 1214 are arranged at a distance from each other. The adjustment structure 122 includes a slider that is slidably mounted between the first contact portion 1213 and the second contact portion 1214. The slider slides relative to the first contact portion 1213 and the second contact portion 1214 to push the first contact portion 1213 and the second contact portion 1214 away from each other, thereby adjusting the distance between the first contact surface 1211 and the second contact surface 1212.

[0155] In some embodiments, the first measuring part 121 includes a first contact surface 1211 and a second contact surface 1212, the first contact surface 1211 being used to contact the medial condyle 310 or the lateral condyle 320, and the second contact surface 1212 being used to contact the articular surface 410, wherein the first contact surface 1211 is a concave surface. The first contact surface 1211 may be an arcuate surface or a curved surface.

[0156] Understandably, since the medial condyle 310 and lateral condyle 320 of the femur 300 are convex surfaces, by making the first contact surface 1211 of the first measuring part 121 that contacts the medial condyle 310 or lateral condyle 320 concave, the shape of the first contact surface 1211 can be more adapted to the shape of the medial condyle 310 or lateral condyle 320, which is beneficial to improving the accuracy of the first measuring part 121 in measuring the distance between the articular surface 410 and the medial condyle 310 or lateral condyle 320.

[0157] Of course, the first contact surface 1211 can also be a plane. As long as the first measuring part 121 is inserted into the gap between the medial condyle 310 or the lateral condyle 320 and the articular surface 410, the distance between the medial condyle 310 or the lateral condyle 320 and the articular surface 410 can be measured. For example, the first contact surface 1211 can be a plane, and the first contact surface 1211 is used to contact the plane after the medial condyle 310 or the lateral condyle 320 of the femur 300 has been cut.

[0158] Furthermore, the second contact surface 1212 is a convex surface, thereby minimizing the number of contact points between the second contact surface 1212 and the articular surface 410, reducing the number of contact points between the second contact surface 1212 and the articular surface 410, and thus reducing the impact on the accuracy of the first measuring unit 121 in measuring the distance between the articular surface 410 and the medial condyle 310 or the lateral condyle 320. Moreover, by making the first contact surface 1211 concave and the second contact surface 1212 convex, the thickness of the first measuring unit 121 at different positions can be kept basically consistent, which is beneficial to improving the measurement accuracy of the first measuring unit 121. The second contact surface 1212 can be an arc-shaped surface or a curved surface.

[0159] Of course, the second contact surface 1212 can also be a plane. As long as the first measuring part 121 is inserted into the gap between the medial condyle 310 or the lateral condyle 320 and the articular surface 410, the distance between the medial condyle 310 or the lateral condyle 320 and the articular surface 410 can be measured. For example, the second contact surface 1212 can be a plane, and the second contact surface 1212 is used to contact the plane after the tibia 400 is cut.

[0160] This application embodiment also provides a gap measuring assembly. The gap measuring assembly includes a mounting mechanism 110 and at least one measuring element 120. The mounting mechanism 110 is used to connect to the tibial osteotomy block 12. At least one measuring element 120 is used to connect to the mounting mechanism 110. The at least one measuring element 120 includes a first measuring portion 121, which includes opposing first contact surfaces 1211 and 1212. The first contact surface 1211 is used to contact the medial condyle 310 or lateral condyle 320 of the femur 300, and the second contact surface 1212 is used to contact the articular surface 410 of the tibia 400. The first contact surface 1211 is concave, and the second contact surface 1212 is convex or planar.

[0161] The mounting mechanism 110 can place at least one measuring element 120 in a first measuring position and a second measuring position, wherein the at least one measuring element 120 is located in different positions of the mounting mechanism 110 when placed in the first measuring position and the second measuring position; the measuring element 120 in the first measuring position is used to insert between the medial condyle 310 of the femur 300 and the articular surface 410 of the tibia 400 to measure the distance between the medial condyle 310 and the articular surface 410; the measuring element 120 in the second measuring position is used to insert between the lateral condyle 320 of the femur 300 and the articular surface 410 of the tibia 400 to measure the distance between the lateral condyle 320 and the articular surface 410.

[0162] The structures of the mounting mechanism 110 and the measuring element 120 can be referred to in the above embodiments, and will not be repeated here.

[0163] This application also provides a tibial osteotomy device, which includes a tibial osteotomy positioning component or a gap measuring component. The specific structure of the tibial osteotomy positioning component or the gap measuring component is as described in the above embodiments. Since this tibial osteotomy device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0164] The tibial osteotomy device 10 may include a tibial osteotomy block 12 and a tibial osteotomy positioning component 11 or a gap measuring component. The tibial osteotomy block 12 has a tibial osteotomy groove 123. The mounting mechanism 110 of the tibial osteotomy positioning component 11 or the gap measuring component is connected to the tibial osteotomy block 12. The structure of the tibial osteotomy positioning component 11 or the gap measuring component can refer to the above embodiments, and will not be repeated here.

[0165] This application also provides an osteotomy system, which includes a tibial osteotomy device. The specific structure of the tibial osteotomy device is as described in the above embodiments. Since this osteotomy system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0166] The osteotomy system 1 may include a tibial osteotomy device 10 and a femoral extramedullary positioning osteotomy device 20. The structure of the tibial osteotomy device 10 can be referred to in the above embodiments. The femoral extramedullary positioning osteotomy device 20 is used to measure the distance between the medial condyle 310 and lateral condyle 320 of the tibia 400 and the femur 300, especially to measure the distance between the cut plane of the tibia 400 and the medial condyle 310 and lateral condyle 320 of the femur 300.

[0167] like Figure 8 and Figure 9 As shown, the femoral extramedullary positioning osteotomy device 20 may include a femoral osteotomy block 22 and a gap measuring device 21. The femoral osteotomy block 22 has a femoral osteotomy groove 221. The gap measuring device 21 is connected to the femoral osteotomy block 22 and is used to measure the distance between the medial condyle 310 and lateral condyle 320 of the tibia 400 and the femur 300, especially the distance between the cut plane of the tibia 400 and the medial condyle 310 and lateral condyle 320 of the femur 300.

[0168] In some embodiments, the gap measuring device 21 may include at least one second measuring part 211, which is used to be inserted between the medial condyle 310 of the tibia 400 and the femur 300 to measure the distance between the tibia 400 and the medial condyle 310. Moreover, the second measuring part 211 is used to be inserted between the lateral condyle 320 of the tibia 400 and the femur 300 to measure the distance between the tibia 400 and the lateral condyle 320, thereby obtaining a suitable flexion-extension gap balance to facilitate the positioning of the femoral osteotomy block 22 for femoral osteotomy.

[0169] The second measuring unit 211 includes two first measuring surfaces 2111 distributed along a third direction H. These two first measuring surfaces 2111 are used to make one-to-one contact with the medial condyle 310 and the lateral condyle 320 of the femur 300. Each first measuring surface 2111 is concave. By making the two first measuring surfaces 2111 concave, their shapes can be adapted to the shapes of the medial condyle 310 and the lateral condyle 320 of the femur 300, which helps improve the measurement accuracy of the second measuring unit 211 of the gap measuring device 21. The concave surface of the first measuring surface 2111 can be a concave curved surface, a concave circular surface, or a concave surface formed by multiple surfaces.

[0170] like Figure 10 As shown, the second measuring unit 211 also includes a second measuring surface 2116, which is located on the side of the second measuring unit 211 opposite to the first measuring surface 2111. In some embodiments, the second measuring surface 2116 can be a plane, which is used to contact the cut plane of the tibia 400. Since the osteotomy surface of the tibia 400 is a plane, by making the second measuring surface 2116 of the second measuring unit 211 a plane, the second measuring surface 2116 of the second measuring unit 211 can fit more closely to the cut plane of the tibia 400, which is beneficial to improving the accuracy of measuring the distance between the medial condyle 310 and lateral condyle 320 of the tibia 400 and femur 300.

[0171] Alternatively, the second measuring surface 2116 of the second measuring part 211 can be made concave, and the second measuring surface 2116 is used to contact the tibia 400. In this way, the contact area between the second measuring surface 2116 of the second measuring part 211 and the tibia 400 can be minimized, which is beneficial to improving the accuracy of measuring the distance between the medial condyle 310 and the lateral condyle 320 of the tibia 400 and the femur 300.

[0172] like Figure 10As shown, the two first measuring surfaces 2111 of the second measuring unit 211 each have a nearest point P to the plane. In some embodiments, the distance m between the two nearest points P in the third direction H can be greater than or equal to 25 mm and less than or equal to 75 mm, so that the lowest point of the two first measuring surfaces 2111 of the second measuring unit 211 can be as close as possible to the lowest point of the medial condyle 310 of the femur 300 and the lateral condyle 320 of the femur 400, which is beneficial to improving the measurement accuracy of the second measuring unit 211. The distance m between the nearest points P of the two first measuring surfaces 2111 of the second measuring unit 211 in the third direction H can be 30 mm, 35 mm, 40 mm, 50 mm, 60 mm, etc.

[0173] Furthermore, one of the two closest points P can be positioned further away from the plane than the other. Moreover, the first measuring surface 2111 containing the closer closest point P is used to contact the medial condyle 310, while the first measuring surface 2111 containing the closer closest point P is used to contact the lateral condyle 320. It is understood that the distances from the medial condyle 310 and lateral condyle 320 of the femur 300 to the tibia 400 are different, and the distance from the lateral condyle 320 to the tibia 400 is smaller. By using the first measuring surface 2111 containing the closer closest point P to contact the lateral condyle 320, and the first measuring surface 2111 containing the closer closest point P to contact the medial condyle 310, the two first measuring surfaces 2111 of the second measuring unit 211 can be better adapted to the corresponding medial condyle 310 and lateral condyle 320, which is beneficial for improving the measurement accuracy of the second measuring unit 211.

[0174] Furthermore, the angle α between the line connecting the two closest points P and the plane can be greater than or equal to 1° and less than or equal to 9°, so that the two first measuring surfaces 2111 of the second measuring unit 211 are better adapted to the corresponding inner condyle 310 and outer condyle 320. The angle α between the line connecting the two closest points P and the plane can be 2°, 4°, 6°, 7°, etc.

[0175] Specifically, the line connecting the two closest points P can form an angle α with the plane that is greater than or equal to 3° and less than or equal to 5°, thereby improving the fit between the two first measuring surfaces 2111 of the second measuring unit 211 and the corresponding inner condyle 310 and outer condyle 320, and improving the measurement accuracy of the second measuring unit 211.

[0176] Continue to refer to Figure 10The first measuring surface 2111 includes a first edge 2112 and a second edge 2113, with the first edge 2112 being closer to the other first measuring surface 2111 than the second edge 2113. In some embodiments, the minimum distance n1 from the first edge 2112 to the plane can be greater than the minimum distance n2 from the second edge 2113 to the plane, thereby making the two first measuring surfaces 2111 of the second measuring unit 211 better adapted to the corresponding inner condyle 310 and outer condyle 320, thereby improving the measurement accuracy of the second measuring unit 211.

[0177] Furthermore, the concave surface of the first measuring surface 2111 can be a concave curved surface, and the first measuring surface 2111 intersects with a plane perpendicular to the fourth direction T to form a first intersection line 2114. The radius of curvature R1 of the first intersection line 2114 of at least one first measuring surface 2111 is greater than or equal to 10 mm, and the third direction H, the fourth direction T, and the thickness direction Z of the second measuring part 211 are substantially perpendicular to each other. Therefore, at least one first measuring surface 2111 can be adapted to the shape of the corresponding inner condyle 310 or outer condyle 320, resulting in higher measurement accuracy of the second measuring part 211.

[0178] It should be noted that the radius of curvature R1 of the first intersection line 2114 of the two first measuring surfaces 2111 can be greater than or equal to 10 mm, or the radius of curvature R1 of the first intersection line 2114 of only one first measuring surface 2111 can be greater than or equal to 10 mm. Of course, the former is beneficial to improving the measurement accuracy of the second measuring unit 211.

[0179] In addition, such as Figure 11 As shown, the concave surface can be a concave curved surface, and the first measuring surface 2111 intersects with a plane perpendicular to the third direction H to form a second intersection line 2115. The radius of curvature R2 of the second intersection line 2115 of at least one first measuring surface 2111 is greater than or equal to 10 mm. Therefore, at least one first measuring surface 2111 can be adapted to the shape of the corresponding inner condyle 310 or outer condyle 320, resulting in higher measurement accuracy of the second measuring part 211.

[0180] It should be noted that the radius of curvature R2 of the second intersection line 2115 of the two first measuring surfaces 2111 can be greater than or equal to 10 mm, or the radius of curvature R2 of the second intersection line 2115 of only one first measuring surface 2111 can be greater than or equal to 10 mm. Of course, the former is beneficial to improving the measurement accuracy of the second measuring part 211.

[0181] In some embodiments, the gap measuring device 21 may include a connecting portion 212 for connecting to the femoral osteotomy block 22, with a second measuring portion 211 at both ends of the connecting portion 212. This allows the second measuring portions 211 at both ends of the connecting portion 212 to be of different sizes or models, facilitating the selection of different sizes or models of second measuring portions 211 for measurement according to patients of different body types. Alternatively, the second measuring portions 211 at both ends of the connecting portion 212 may be of the same size or model, which can extend the lifespan of the gap measuring device 21, allowing the other second measuring portion 211 to be used for measurement if one of the second measuring portions 211 is damaged or fails.

[0182] In some embodiments, the connecting portion 212 further includes a connecting hole 2121 for inserting a force line rod. By inserting the force line rod into the connecting hole 2121, the force line rod can be easily connected to the connecting portion 212, making the operation very convenient and improving surgical efficiency. Specifically, the connecting hole 2121 can penetrate the connecting portion 212 along a third direction H. There are multiple connecting holes 2121. These multiple connecting holes 2121 are sequentially distributed along a fourth direction T.

[0183] In some embodiments, the femoral osteotomy block 22 can be slidably connected to the gap measuring device 21 along the fourth direction T, which is substantially perpendicular to the third direction H and the thickness direction Z of the measuring part of the gap measuring device 21. Thus, when the second measuring part 211 of the gap measuring device 21 is inserted between the articular surface 410 and the lateral condyle 320 and medial condyle 310 of the femur 300, the femoral osteotomy block 22 can be moved along the fourth direction T to bring it closer to the femur 300, thereby facilitating more accurate positioning of the femoral osteotomy block 22.

[0184] In some embodiments, such as Figure 9 and Figure 12 As shown, the connecting portion 212 of the gap measuring device 21 can be provided with at least one third groove 2122 extending along the fourth direction T. The femoral osteotomy block 22 includes at least one slider 222, which is slidably mounted in the at least one third groove 2122, thereby making the femoral osteotomy block 22 stably slidably connected to the connecting portion 212 of the gap measuring device 21 along the fourth direction T.

[0185] At least one third groove 2122 includes two opposing side surfaces 2123, and the slider 222 includes an outer side surface opposite to the side surface 2123. A limiting groove can be formed in one of the side surfaces 2123 and the outer side surface, and a limiting part 2124 is provided in the other side surface 2123 and the outer side surface. The limiting part 2124 is slidably installed in the limiting groove along the fourth direction T. Thus, the sidewall of the limiting groove can abut against the limiting part 2124 to limit the movement distance of the femoral osteotomy block 22 relative to the connecting part 212 in the thickness direction Z, making the connection between the femoral osteotomy block 22 and the connecting part 212 of the gap measuring device 21 more stable.

[0186] Specifically, the connecting portion 212 extends along the fourth direction T. The connecting portion 212 has two third sliding grooves 2122. The two third sliding grooves 2122 are sequentially distributed along the third direction H. Correspondingly, the femoral osteotomy block 22 includes two sliders 222, which are slidably installed in the two third sliding grooves 2122. Limiting portions 2124 protrude from the two sides 2123 of the third sliding grooves 2122. The limiting portions 2124 extend along the fourth direction T. Limiting grooves are formed on the two outer sides of the sliders 222, and the two limiting portions 2124 in the third sliding grooves 2122 are slidably installed in the two limiting grooves of the sliders 222, thereby making the sliding connection between the femoral osteotomy block 22 and the connecting portion 212 more stable.

[0187] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0188] The foregoing has provided a detailed description of a tibial osteotomy positioning component, a gap measuring component, an osteotomy device, and a system provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tibial osteotomy positioning component, characterized in that, include: A mounting mechanism for connecting to a tibial osteotomy block, the mounting mechanism including a connector for connecting to the tibial osteotomy block; At least one measuring element is provided for connection to the mounting mechanism, which can position the at least one measuring element at a first measuring position and a second measuring position, wherein the at least one measuring element is located at different positions on the mounting mechanism when positioned at the first measuring position and the second measuring position; the measuring element at the first measuring position is used to insert between the medial condyle of the femur and the articular surface of the tibia to measure the distance between the medial condyle and the articular surface, and to locate the relative position of the tibial osteotomy piece and the articular surface; the measuring element at the second measuring position is used to insert between the lateral condyle of the femur and the articular surface of the tibia to measure the distance between the lateral condyle and the articular surface, and to locate the relative position of the tibial osteotomy piece and the articular surface; The mounting mechanism further includes a first mounting member and a second mounting member. The first mounting member is used to connect to the at least one measuring member and place the at least one measuring member in the first measuring position. The second mounting member is used to connect to the at least one measuring member and place the at least one measuring member in the second measuring position. The mounting mechanism also includes a first rotating shaft. The connecting member is connected to the first mounting member or the second mounting member via the first rotating shaft. The first mounting member and the second mounting member can rotate together around the first rotating shaft, or the connecting member can rotate around the first rotating shaft. Alternatively... The mounting mechanism further includes a third mounting member for connecting to the at least one measuring element. The third mounting member is movable relative to the connecting member to place the at least one measuring element in the first measuring position and the second measuring position. The mounting mechanism also includes a second rotating shaft, through which the third mounting member is connected to the connecting member. The third mounting member or the connecting member is rotatable around the second rotating shaft. The mounting mechanism also includes a second slide rail connected to the connecting member. The third mounting member is slidably mounted on the second slide rail. A third shaft hole is provided in the second slide rail, and the second rotating shaft is rotatably mounted in the third shaft hole.

2. The tibial osteotomy positioning component as described in claim 1, characterized in that, At least one of the first mounting member and the second mounting member is used for detachable connection with the at least one measuring member; or, The third mounting component is used for detachable connection with the at least one measuring component.

3. The tibial osteotomy positioning component as described in claim 2, characterized in that, The first mounting member has a first mounting hole that extends through the first mounting member along a first direction, and the at least one measuring element can be inserted into the first mounting hole to allow for a detachable connection between the at least one measuring element and the first mounting member; the second mounting member has a second mounting hole that extends through the second mounting member along the first direction, and the at least one measuring element can be inserted into the second mounting hole to allow for a detachable connection between the at least one measuring element and the second mounting member; or... The third mounting component has a third mounting hole that extends through the third mounting component along a first direction. The at least one measuring component can be inserted into the third mounting hole so that the at least one measuring component is detachably connected to the third mounting component.

4. The tibial osteotomy positioning component as described in claim 3, characterized in that, The first mounting member and the second mounting member are sequentially distributed along a second direction, and the first mounting member and the second mounting member can rotate together relative to the connecting member about a first rotation axis; the first direction, the second direction, and the first rotation axis are substantially perpendicular to each other; or... The third mounting member can move relative to the connector along a second direction to place the at least one measuring member at the first measuring position and the second measuring position; the third mounting member can rotate relative to the connector about a second rotation axis, wherein the first direction, the second direction and the second rotation axis are substantially perpendicular to each other.

5. The tibial osteotomy positioning component as described in claim 4, characterized in that, The first rotating shaft extends along the first rotation axis; or, The second rotating shaft extends along the second rotation axis.

6. The tibial osteotomy positioning component as described in claim 3, characterized in that, The mounting mechanism further includes a first locking member connected to the first mounting member, the first locking member being used to lock the at least one measuring member and the first mounting member; the mounting mechanism further includes a second locking member connected to the second mounting member, the second locking member being used to lock the at least one measuring member and the second mounting member; or... The mounting mechanism further includes a third locking member connected to the third mounting member, the third locking member being used to lock the at least one measuring member and the third mounting member.

7. The tibial osteotomy positioning component as described in claim 6, characterized in that, The first mounting component has a first threaded hole communicating with the first mounting hole. The first locking component includes a first knob and a first threaded rod. The first threaded rod is threadedly connected to the first threaded hole. The first knob is located at the end of the first threaded rod away from the first mounting hole. The end of the first threaded rod away from the first knob is used to abut against the at least one measuring element to lock the at least one measuring element and the first mounting component. The second mounting component has a second threaded hole communicating with the second mounting hole. The second locking component includes a second knob and a second threaded rod. The second threaded rod is threadedly connected to the second threaded hole. The second knob is located at the end of the second threaded rod away from the second mounting hole. The end of the second threaded rod away from the second knob is used to abut against the at least one measuring element to lock the at least one measuring element and the second mounting component. Alternatively... The third mounting component has a third threaded hole communicating with the third mounting hole. The third locking component includes a third knob and a third threaded rod. The third threaded rod is threadedly connected to the third threaded hole. The third knob is located at the end of the third threaded rod away from the third mounting hole. The end of the third threaded rod away from the third knob is used to abut against the at least one measuring component to lock the at least one measuring component and the third mounting component.

8. The tibial osteotomy positioning component as described in any one of claims 1 to 7, characterized in that, The first mounting member and the second mounting member are sequentially distributed along a second direction; in the second direction, the first mounting member and the second mounting member are movable relative to each other; or, The third mounting component is movably connected to the connector to place the measuring component at the first measuring position and the second measuring position.

9. The tibial osteotomy positioning component as described in claim 8, characterized in that, The mounting mechanism further includes a first slide rail extending along the second direction, the first mounting member being connected to the second mounting member via the first slide rail, and either the first mounting member or the second mounting member being slidably mounted on the first slide rail; or... The second slide rail extends along the second direction.

10. The tibial osteotomy positioning component as described in claim 9, characterized in that, The mounting mechanism further includes a first driving member connected to the first slide rail, the first driving member being connected to the first mounting member or the second mounting member to drive the first mounting member or the second mounting member to slide along the first slide rail; or... The mounting mechanism further includes a second driving member connected to the second slide rail, the second driving member being connected to the third mounting member to drive the third mounting member to slide along the second slide rail.

11. The tibial osteotomy positioning component as described in claim 10, characterized in that, The first driving member includes a first adjusting rod extending along the second direction. The outer periphery of the first adjusting rod is provided with a first spiral groove extending spirally along the second direction. The first adjusting rod is rotatable relative to the first slide rail about a third rotation axis, which extends along the second direction. The first mounting member or the second mounting member includes a first sliding portion slidably mounted on the first spiral groove. When the first adjusting rod rotates about the third rotation axis, the inner surface of the first spiral groove pushes the first sliding portion to slide along the second direction. Alternatively... The second driving member includes a second adjusting rod extending along the second direction. The outer periphery of the second adjusting rod is provided with a second spiral groove extending along the second direction. The second adjusting rod can rotate relative to the second slide rail about a fourth rotation axis, which extends along the second direction. The third mounting member includes a second sliding part slidably mounted on the second spiral groove. When the second adjusting rod rotates about the fourth rotation axis, the inner side of the second spiral groove pushes the second sliding part to slide along the second direction.

12. The tibial osteotomy positioning assembly as described in claim 11, characterized in that, The first slide rail includes a fourth mounting hole extending along the second direction, the first adjusting rod is rotatably mounted in the fourth mounting hole, and the inner circumferential surface of the fourth mounting hole is provided with a first clearance groove to avoid the first sliding part; or, The second slide rail includes a fifth mounting hole extending along the second direction, the second adjusting rod is rotatably mounted in the fifth mounting hole, and the inner circumferential surface of the fifth mounting hole is provided with a second clearance groove to avoid the second sliding part.

13. The tibial osteotomy positioning assembly as described in any one of claims 1 to 7, characterized in that, At least one of the measuring elements includes a first measuring portion, which is used to be inserted between the articular surface and the medial condyle to measure the distance between the articular surface and the medial condyle and to locate the relative position of the tibial osteotomy piece and the medial condyle; or, the first measuring portion is used to be inserted between the articular surface and the lateral condyle to measure the distance between the articular surface and the lateral condyle and to locate the relative position of the tibial osteotomy piece and the lateral condyle; Wherein, the at least one measuring element includes a plurality of measuring elements, wherein the thickness of the first measuring portion of the plurality of measuring elements is different; and / or, The thickness of the first measuring part is adjustable.

14. The tibial osteotomy positioning component as described in claim 13, characterized in that, The first measuring part includes an adjustment structure, a first contact part and a second contact part. The first contact part has a first contact surface on the side opposite to the second contact part. The first contact surface is used to contact the medial condyle or the lateral condyle. The second contact part has a second contact surface on the side opposite to the first contact part. The second contact surface is used to contact the joint surface. The adjustment structure is used to connect with the first contact portion and the second contact portion, and drive the first contact portion and the second contact portion to move closer to each other or further away from each other, so as to adjust the distance between the first contact surface and the second contact surface.

15. The tibial osteotomy positioning assembly as described in claim 13, characterized in that, At least one of the first measuring parts is used to be inserted between the articular surface and the medial condyle, and adapted to the gap between the articular surface and the medial condyle, to measure the distance between the medial condyle and the articular surface, and to locate the relative position of the tibial osteotomy piece and the articular surface; or, at least one of the first measuring parts is used to be inserted between the articular surface and the lateral condyle, and adapted to the gap between the articular surface and the lateral condyle, to measure the distance between the lateral condyle and the articular surface, and to locate the relative position of the tibial osteotomy piece and the articular surface; and / or, At least one of the first measuring parts is used to be inserted between the articular surface and the medial condyle, and the thickness of the first measuring part is adjusted to adapt to the gap between the articular surface and the medial condyle, so as to measure the distance between the medial condyle and the articular surface and locate the relative position of the tibial osteotomy block and the articular surface; or, at least one of the first measuring parts is used to be inserted between the articular surface and the lateral condyle, and the thickness of the first measuring part is adjusted to adapt to the gap between the articular surface and the lateral condyle, so as to measure the distance between the lateral condyle and the articular surface and locate the relative position of the tibial osteotomy block and the articular surface.

16. The tibial osteotomy positioning component as described in claim 13, characterized in that, The first measuring part includes a first contact surface and a second contact surface opposite to each other. The first contact surface is used to contact the medial condyle or the lateral condyle, and the second contact surface is used to contact the articular surface. The first contact surface is a concave surface, and the second contact surface is a convex surface.

17. A gap measuring assembly, characterized in that, include: A mounting mechanism for connecting to a tibial osteotomy block, the mounting mechanism including a connector for connecting to the tibial osteotomy block; At least one measuring element for connection to the mounting mechanism, the at least one measuring element including a first measuring portion, the first measuring portion including opposing first and second contact surfaces, the first contact surface for contacting the medial or lateral condyle of the femur, the second contact surface for contacting the articular surface of the tibia, the first contact surface being a concave surface or a plane, and the second contact surface being a convex surface or a plane; The mounting mechanism can place at least one measuring element in a first measuring position and a second measuring position, with the at least one measuring element located at different positions in the mounting mechanism when placed in the first measuring position and the second measuring position; the measuring element in the first measuring position is used to insert between the medial condyle of the femur and the articular surface of the tibia to measure the distance between the medial condyle and the articular surface; The measuring element, positioned in the second measuring position, is inserted between the lateral condyle of the femur and the articular surface of the tibia to measure the distance between the lateral condyle and the articular surface. The mounting mechanism further includes a first mounting member and a second mounting member. The first mounting member is used to connect to the at least one measuring member and place the at least one measuring member in the first measuring position. The second mounting member is used to connect to the at least one measuring member and place the at least one measuring member in the second measuring position. The mounting mechanism also includes a first rotating shaft. The connecting member is connected to the first mounting member or the second mounting member via the first rotating shaft. The first mounting member and the second mounting member can rotate together around the first rotating shaft, or the connecting member can rotate around the first rotating shaft. Alternatively... The mounting mechanism further includes a third mounting member for connecting to the at least one measuring element. The third mounting member is movable relative to the connecting member to place the at least one measuring element in the first measuring position and the second measuring position. The mounting mechanism also includes a second rotating shaft, through which the third mounting member is connected to the connecting member. The third mounting member or the connecting member is rotatable around the second rotating shaft. The mounting mechanism also includes a second slide rail connected to the connecting member. The third mounting member is slidably mounted on the second slide rail. A third shaft hole is provided in the second slide rail, and the second rotating shaft is rotatably mounted in the third shaft hole.

18. A tibial osteotomy device, characterized in that, include: Tibial osteotomy block, wherein the tibial osteotomy block is provided with a tibial osteotomy groove; as well as, The tibial osteotomy positioning assembly according to any one of claims 1 to 16, or the gap measuring assembly according to claim 17, wherein the mounting mechanism of the tibial osteotomy positioning assembly or the gap measuring assembly is connected to the tibial osteotomy block.

19. The tibial osteotomy device as described in claim 18, characterized in that, The tibial osteotomy device further includes a distance adjustment component, which includes a fixed end and a connecting end. The fixed end of the distance adjustment component is used to fix it to the human body, and the connecting end of the distance adjustment component is used to connect to the tibial osteotomy block. The distance adjustment component is used to adjust the distance between the tibial osteotomy block and the fixed end.

20. An osteotomy system, characterized in that, The osteotomy system includes a tibial osteotomy device and a femoral extramedullary positioning osteotomy device; the tibial osteotomy device is the tibial osteotomy device as described in claim 18 or 19.

21. The osteotomy system as described in claim 20, characterized in that, The extramedullary femoral osteotomy device includes: A femoral osteotomy block, wherein the femoral osteotomy block has a femoral osteotomy groove; A gap measuring device is connected to the femoral osteotomy block. The gap measuring device includes at least one second measuring part, which is used to insert between the medial condyle of the tibia and the femur to measure the distance between the tibia and the medial condyle. The second measuring part is also used to insert between the lateral condyle of the tibia and the femur to measure the distance between the tibia and the lateral condyle. The second measuring unit includes two first measuring surfaces distributed along a third direction. The two first measuring surfaces are used to make one-to-one contact with the inner condyle and the outer condyle. The first measuring surfaces are concave surfaces.

22. The osteotomy system as described in claim 21, characterized in that, The second measuring unit includes a second measuring surface; the second measuring surface is located on the side of the second measuring unit opposite to the first measuring surface; Wherein, the second measuring surface is a plane, the plane being used to contact the cut surface of the tibia; or, The second measuring surface is a concave surface, and the second measuring surface is used to contact the tibia.

23. The osteotomy system as described in claim 22, characterized in that, The two first measuring surfaces each have a nearest point to the plane; Wherein, the distance m between the two nearest points in the direction of the third party is greater than or equal to 25 mm and less than or equal to 75 mm; and / or, One of the nearest points is farther from the plane than the other nearest point; the first measuring plane containing the nearest point farther from the plane is used to contact the medial condyle, and the first measuring plane containing the nearest point closer to the plane is used to contact the lateral condyle; and / or, The line connecting the two nearest points forms an angle α with the plane that is greater than or equal to 1° and less than or equal to 9°; or, the line connecting the two nearest points forms an angle α with the plane that is greater than or equal to 3° and less than or equal to 5°.

24. The osteotomy system as described in claim 22, characterized in that, The first measuring surface includes opposing first and second edges, wherein the first edge of the first measuring surface is closer to another first measuring surface than the second edge; the minimum distance n1 from the first edge to the plane is greater than the minimum distance n2 from the second edge to the plane; and / or, The concave surface is a concave curved surface. The first measuring surface intersects with a plane perpendicular to the fourth direction to form a first intersection line. The radius of curvature R1 of the first intersection line of at least one of the first measuring surfaces is greater than or equal to 10 mm. The third direction, the fourth direction, and the thickness direction of the second measuring part are substantially perpendicular to each other; and / or, The concave surface is a concave curved surface, and the first measuring surface intersects with a plane perpendicular to the third direction to form a second intersection line. The radius of curvature R2 of the second intersection line of at least one of the first measuring surfaces is greater than or equal to 10 mm.

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