Tibial osteotomy block locking device

Abstract

The present invention provides a tibial osteotomy block locking device, comprising: a locking body, the locking body having a mounting hole sleeved on the tibial osteotomy positioning tool along the axial direction, and the tibial osteotomy positioning tool can move along the mounting hole; and a locking member arranged on the locking body, the locking member having a locking hole for the tibial osteotomy positioning tool to pass through along the axial direction, the locking hole comprising a local threaded hole and a local light hole corresponding to the local threaded hole, the locking member can slide relative to the locking body, so that the local threaded hole and the threaded section of the tibial osteotomy positioning tool are screwed together or separated. Through the cooperation of the local threaded hole and the threaded section of the tibial osteotomy positioning tool, the tibial osteotomy block locking device can securely fix the tibial osteotomy block, prevent the tibial osteotomy block from falling due to vibration, and at the same time, the tibial osteotomy block locking device can be quickly assembled, disassembled and fine-tuned, with a simple structure and convenient operation.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a tibial osteotomy block locking device. Background Art

[0002] Tibial osteotomy is an essential step in total knee replacement. Before osteotomy, the tibial osteotomy block needs to be locked onto the tibial osteotomy positioning tool. After determining the appropriate osteotomy direction and amount, the tibial osteotomy positioning tool is fixed to the tibia. Finally, the tibial osteotomy block is fixed to the tibia with a fixing pin, the tibial osteotomy positioning tool is removed, and the tibial osteotomy block is used to perform tibial osteotomy.

[0003] There are currently two common tibial osteotomy block locking devices. The first type: a threaded knob is set at the tibial osteotomy block installation position of the tibial osteotomy positioning tool. When the tibial osteotomy block is adjusted to a suitable position on the tibial osteotomy positioning tool, the threaded knob is tightened to contact the tibial osteotomy block, and the tibial osteotomy block is locked by the friction between the two. The defect of this locking method is that due to the limited space of the instrument, the contact area between the threaded knob and the tibial osteotomy block is small. At the same time, during the surgical operation, the doctor tightens the threaded knob with his fingers, and the tightening force is small, resulting in a small friction between the threaded knob and the tibial osteotomy block. In the process of fixing the tibial osteotomy positioning tool to the tibia, the tibial osteotomy block needs to withstand large vibrations, which makes the tibial osteotomy block easy to loosen and fall. The second type: a cam button is installed on the tibial osteotomy block. When the tibial osteotomy block installed on the tibial osteotomy positioning tool is adjusted to a suitable position, the cam button is pressed, and the tibial osteotomy block is locked by the friction between the cam button and the tibial osteotomy positioning tool. The drawback of this locking method is that frequent use will cause the cam button to wear, resulting in reduced friction between the tibial osteotomy block and the tibial osteotomy positioning tool, which is prone to falling when vibration is generated during surgical operations.

[0004] Therefore, when the two tibial osteotomy block locking instruments are subjected to vibration, the tibial osteotomy blocks are prone to fall off, making it inconvenient to perform the osteotomy operation. Summary of the invention

[0005] Based on this, it is necessary to provide a tibial osteotomy block locking device that can reliably fix the tibial osteotomy block and prevent it from falling due to vibration, in order to solve the problem that the current tibial osteotomy block locking device is easy to fall due to vibration.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A tibial osteotomy block locking device is mounted on a tibial osteotomy positioning tool, wherein the tibial osteotomy positioning tool has a threaded section;

[0008] The tibial osteotomy block locking instrument comprises a locking body and a locking member;

[0009] The locking body has a mounting hole along the axial direction and is sleeved on the tibial osteotomy positioning tool, and the tibial osteotomy positioning tool can move along the mounting hole, and the locking body has a space inside to accommodate the locking member; and

[0010] The locking piece is arranged inside the locking piece of the locking body, and the locking piece has a locking hole along the axial direction for the tibial osteotomy positioning tool to pass through, and the locking hole includes a local threaded hole and a local light hole corresponding to the local threaded hole. The locking piece can slide relative to the locking body along the radial direction of the tibial osteotomy positioning tool to screw together or separate the local threaded hole and the threaded section of the tibial osteotomy positioning tool.

[0011] In one of the embodiments, the radial central angle of the local threaded hole is less than or equal to 180°.

[0012] In one embodiment, the major diameter of the local threaded hole is the same as the major diameter of the threaded section of the tibial osteotomy positioning tool;

[0013] The inscribed circle diameter of the local light hole is larger than the major diameter of the local threaded hole; and / or the difference between the inscribed circle diameter of the local light hole and the major diameter of the local threaded hole is greater than or equal to the difference between the major diameter and the minor diameter of the local threaded hole.

[0014] In one embodiment, the diameter of the inscribed circle of the mounting hole is larger than the major diameter of the local threaded hole;

[0015] And / or, the difference between the diameter of the inscribed circle of the mounting hole and the major diameter of the local threaded hole is greater than or equal to the difference between the major diameter and the minor diameter of the local threaded hole.

[0016] In one of the embodiments, the tibial osteotomy block locking instrument further comprises a guide assembly;

[0017] The guide assembly includes a guide protrusion arranged on the locking body and a guide groove arranged on the locking member, or includes a guide groove arranged on the locking body and a guide protrusion arranged on the locking member, and the locking member slides relative to the locking body through the cooperation between the guide groove and the guide protrusion.

[0018] In one embodiment, the tibial osteotomy block locking instrument further comprises a guide assembly, wherein the guide assembly comprises:

[0019] an adjustment hole axially penetrating the locking body or the locking member, wherein a length of the adjustment hole along a moving direction of the locking member in a radial cross section is greater than a length perpendicular to the moving direction of the locking member; and

[0020] The adjusting member inserted in the adjusting hole passes through the locking body and the locking member in the axial direction and can slide radially along the adjusting hole. The locking member slides relative to the locking body through the cooperation between the adjusting member and the adjusting hole.

[0021] In one embodiment, the adjustment hole is provided in the locking body, the adjustment member is inserted into the locking member in an interference fit manner, and the locking member slides along the adjustment hole through the adjustment member; or,

[0022] The adjusting hole is arranged on the locking member, the adjusting member is penetrated through the locking body in an interference fit manner, and the locking member slides along the adjusting member through the adjusting hole.

[0023] In one embodiment, in the movement direction of the locking member, the length of the adjustment hole is greater than the length of the adjustment member, and / or the longest length that the adjustment member can move is greater than or equal to half of the difference between the major diameter and the minor diameter of the local threaded hole;

[0024] In a direction perpendicular to the movement of the locking member, the width of the adjusting hole is greater than the width of the adjusting member, and / or the difference between the width of the adjusting hole and the width of the adjusting member is 0.05 mm to 0.5 mm.

[0025] In one embodiment, the guide assembly also includes an elastic member, which is arranged between the locking body and the locking member along the movement direction of the locking member. The elastic restoring force provided by the elastic member can enable the local threaded hole of the locking member to be screwed into or separated from the threaded section of the tibial osteotomy positioning tool.

[0026] In one embodiment, the locking body has a first mounting groove, the locking member has a second mounting groove, one end of the elastic member is located in the first mounting groove, and the other end of the elastic member is located in the second mounting groove.

[0027] After adopting the above technical solution, the present invention has at least the following technical effects:

[0028] The tibial osteotomy block locking device of the present invention is installed on the tibial osteotomy positioning tool to fix the tibial osteotomy block. After the tibial osteotomy block locking device is fixed to the tibial osteotomy positioning tool, the locking piece is pushed, and the locking piece can slide relative to the locking body, so that the local threaded hole of the locking piece is separated from the threaded section of the tibial osteotomy positioning tool. At this time, the tibial osteotomy block locking device can be moved up and down along the tibial osteotomy positioning tool to the expected position or disassembled. The locking piece is pushed in the opposite direction, and the locking piece can slide relative to the locking body, so that the local threaded hole of the locking piece is screwed with the threaded section of the tibial osteotomy positioning tool to achieve the locking of the tibial osteotomy block locking device, and then the locking of the tibial osteotomy block is achieved. When the position of the tibial osteotomy block needs to be fine-tuned, the local threaded hole of the locking piece is kept in the screwed state with the threaded section of the tibial osteotomy positioning tool, and the tibial osteotomy block locking device can be rotated to move on the tibial osteotomy positioning tool to achieve the fine adjustment of the tibial osteotomy block. The problem that the current tibial osteotomy block locking device is easily dropped due to vibration is effectively solved. By screwing and separating the local threaded hole and the threaded section of the tibial osteotomy positioning tool, the tibial osteotomy block locking instrument can firmly fix the tibial osteotomy block to prevent the tibial osteotomy block from falling due to vibration. At the same time, the tibial osteotomy block locking instrument can also be quickly assembled, disassembled and fine-tuned, with a simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A side view of the tibial osteotomy block locking instrument and the tibial osteotomy positioning tool according to the first embodiment of the present invention;

[0030] Figure 2 for Figure 1 The cross-sectional view at AA shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0031] Figure 3 for Figure 1 The cross-sectional view at AA shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0032] Figure 4 for Figure 1 A front view of the tibial osteotomy block locking instrument is shown;

[0033] Figure 5 for Figure 4 A cross-sectional view of the tibial osteotomy block locking instrument at A1-A1 is shown;

[0034] Figure 6 for Figure 4 A cross-sectional view of the tibial osteotomy block locking instrument at A2-A2 is shown;

[0035] Figure 7 for Figure 1 A bottom view of the locking member in the tibial osteotomy block locking instrument is shown;

[0036] Figure 8 for Figure 7 A cross-sectional view of the locking member shown at A3-A3;

[0037] Fig. 9 for Figure 1 A side view of a locking body in a tibial osteotomy block locking instrument is shown;

[0038] Fig.10 for Fig. 9 A cross-sectional view of the locking body shown at A4-A4;

[0039] Fig.11 for Fig. 9 A cross-sectional view of the locking body shown at A5-A5;

[0040] Fig.12 A side view of the tibial osteotomy block locking instrument and the tibial osteotomy positioning tool according to the second embodiment of the present invention;

[0041] Fig.13 for Fig.12 The cross-sectional view at BB shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0042] Fig.14 for Fig.12 The cross-sectional view at BB shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0043] Fig.15 for Fig.12 A front view of the tibial osteotomy block locking instrument is shown;

[0044] Fig.16 for Fig.15 A cross-sectional view of the tibial osteotomy block locking instrument at B1-B1 is shown;

[0045] Fig.17 for Fig.15 A cross-sectional view of the tibial osteotomy block locking instrument at B2-B2 is shown;

[0046] Fig.18 for Fig.12 A bottom view of the locking member in the tibial osteotomy block locking instrument is shown;

[0047] Fig.19 for Fig.18 A cross-sectional view of the locking member shown at B3-B3;

[0048] Fig. 20 for Fig.12 A side view of a locking body in a tibial osteotomy block locking instrument is shown;

[0049] Fig.21 for Fig. 20 A cross-sectional view of the locking body shown at B4-B4;

[0050] Fig. 22 for Fig. 20 A cross-sectional view of the locking body shown at B5-B5;

[0051] Fig.23 A top view of the tibial osteotomy block locking instrument and the tibial osteotomy positioning tool according to the third embodiment of the present invention;

[0052] Fig.24 for Fig.23 The cross-sectional view at CC shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0053] Fig.25 for Fig.23 The cross-sectional view at C'-C' shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0054] Fig.26 for Fig.23 The cross-sectional view at CC shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0055] Fig. 27 for Fig.23 The cross-sectional view at C'-C' shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0056] Fig.28 for Fig.24 A front view of the tibial osteotomy block locking instrument is shown;

[0057] Fig.29 for Fig.28 A cross-sectional view of the tibial osteotomy block locking instrument at C1-C1 is shown;

[0058] Fig.30 for Fig.28 A cross-sectional view of the tibial osteotomy block locking instrument at C2-C2 is shown;

[0059] Fig.31 for Fig.28 A cross-sectional view of the tibial osteotomy block locking instrument at C3-C3 is shown;

[0060] Fig.32 for Fig.24 A top view of a locking member in the tibial osteotomy block locking instrument is shown;

[0061] Fig.33 for Fig.32 A cross-sectional view of the locking member shown at C4-C4;

[0062] Fig.34 for Fig.24 A side view of a locking body in a tibial osteotomy block locking instrument is shown;

[0063] Fig.35 for Fig.34 A cross-sectional view of the locking body shown at C5-C5;

[0064] Fig.36 for Fig.34 A cross-sectional view of the locking body shown at C6-C6;

[0065] Fig.37 A top view of the tibial osteotomy block locking instrument and the tibial osteotomy positioning tool according to the fourth embodiment of the present invention;

[0066] Fig.38 for Fig.37 The cross-sectional view at DD shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0067] Fig.39 for Fig.37 The cross-sectional view at D'-D' shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0068] Fig.40 for Fig.37 The cross-sectional view at DD shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0069] Fig.41 for Fig.37 The cross-sectional view at D'-D' is shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0070] Fig.42 for Fig.38 A front view of the tibial osteotomy block locking instrument is shown;

[0071] Fig.43 for Fig.42 A cross-sectional view of the tibial osteotomy block locking instrument at D1-D1 is shown;

[0072] Fig.44 for Fig.42 A cross-sectional view of the tibial osteotomy block locking instrument at D2-D2 is shown;

[0073] Fig.45 for Fig.42 A cross-sectional view of the tibial osteotomy block locking instrument at D3-D3 is shown;

[0074] Fig.46 for Fig.38 A top view of a locking member in the tibial osteotomy block locking instrument is shown;

[0075] Fig.47 for Fig.46 A cross-sectional view of the locking member shown at D4-D4;

[0076] Fig.48 for Fig.38 A side view of a locking body in a tibial osteotomy block locking instrument is shown;

[0077] Fig.49 for Fig.48 A cross-sectional view of the locking body shown at D5-D5;

[0078] Fig.50 for Fig.48 A cross-sectional view of the locking body shown at D6-D6;

[0079] Fig.51 A cross-sectional view of a tibial osteotomy block locking device in cooperation with a tibial osteotomy positioning tool according to a fifth embodiment of the present invention, wherein a local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0080] Fig.52 for Fig.51 A cross-sectional view of the tibial osteotomy block locking instrument in cooperation with the tibial osteotomy positioning tool is shown, wherein the local threaded hole of the locking member is separated from the cooperation with the tibial osteotomy positioning tool;

[0081] Fig.53 for Fig.51 A front view of the tibial osteotomy block locking device is shown;

[0082] Fig.54 for Fig.53 A cross-sectional view at EE is shown;

[0083] Fig.55 A cross-sectional view of a tibial osteotomy block locking device according to a sixth embodiment of the present invention in cooperation with a tibial osteotomy positioning tool, wherein a local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0084] Fig.56 for Fig.55 A cross-sectional view of the tibial osteotomy block locking instrument in cooperation with the tibial osteotomy positioning tool is shown, wherein the local threaded hole of the locking member is separated from the cooperation with the tibial osteotomy positioning tool;

[0085] Fig.57 for Fig.55 A front view of the tibial osteotomy block locking device is shown;

[0086] Fig.58 for Fig.57 A cross-sectional view at FF is shown;

[0087] Fig.59 A top view of the tibial osteotomy block locking instrument and the tibial osteotomy positioning tool according to the seventh embodiment of the present invention;

[0088] Fig.60 for Fig.59 The cross-sectional view at GG shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0089] Fig.61 for Fig.59 The cross-sectional view at G'-G' shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0090] Fig.62 for Fig.59 The cross-sectional view at GG shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0091] Fig.63 for Fig.59 The cross-sectional view at G'-G' shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0092] Fig.64 for Fig.60 A front view of the tibial osteotomy block locking instrument is shown;

[0093] Fig.65 for Fig.64 A cross-sectional view of the tibial osteotomy block locking instrument at G1-G1 is shown;

[0094] Fig.66 for Fig.64 A cross-sectional view of the tibial osteotomy block locking instrument at G2-G2 is shown;

[0095] Fig.67 A top view of the tibial osteotomy block locking instrument and the tibial osteotomy positioning tool according to the eighth embodiment of the present invention;

[0096] Fig.68 for Fig.67 The cross-sectional view at HH shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0097] Fig.69 for Fig.67 The cross-sectional view at H'-H' shown, wherein the local threaded hole of the locking member is screwed into cooperation with the tibial osteotomy positioning tool;

[0098] Fig.70 for Fig.67 The cross-sectional view at HH shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0099] Fig.71 for Fig.67 The cross-sectional view at H'-H' is shown, wherein the local threaded hole of the locking member is separated from the tibial osteotomy positioning tool;

[0100] Fig.72 for Fig.68 A front view of the tibial osteotomy block locking instrument is shown;

[0101] Fig.73 for Fig.72 A cross-sectional view of the tibial osteotomy block locking instrument at H1-H1 is shown;

[0102] Fig.74 for Fig.72 A cross-sectional view of the tibial osteotomy fragment locking instrument is shown at H2-H2.

[0103] Among them: 100-tibial osteotomy block locking instrument; 110-locking body; 111-mounting hole; 112-first body; 113-second body; 114-connecting body; 115-sliding groove; 116-first fixing hole; 117-first mounting groove; 120-locking piece; 121-local threaded hole; 122-local light hole; 123-second fixing hole; 124-second mounting groove; 130-guide assembly; 131-first guide piece; 132-second guide piece; 133-adjusting piece; 134-adjusting hole; 135-elastic piece; 200-tibial osteotomy positioning tool; 210-threaded section. DETAILED DESCRIPTION

[0104] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the tibial osteotomy block locking device of the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0105] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0106] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0107] See also Figure 1 , Fig.12 , Fig.23 , Fig.37 , Fig.51 , Fig.59 and Fig.67 The present invention provides a tibial osteotomy block locking device 100. The tibial osteotomy locking device is used in the operation of tibial osteotomy during total knee replacement, and is used to lock the tibial osteotomy block on the tibial osteotomy positioning tool 200, so that the tibial osteotomy block is reliably fixed on the tibia. Specifically, before osteotomy, the tibial osteotomy block is first fixed to the tibial osteotomy positioning tool 200 using the tibial osteotomy block locking device 100. After determining the appropriate osteotomy direction and amount, the tibial osteotomy positioning tool 200 is fixed to the tibia, and the tibial osteotomy block is fixed to the tibia by a fixing nail. Then, the tibial osteotomy positioning tool 200 is disassembled, and the tibial osteotomy is performed using the tibial osteotomy block. The tibial osteotomy block locking device 100 of the present invention can reliably fix the tibial osteotomy block to the tibial osteotomy positioning tool 200, prevent the tibial osteotomy block from falling due to vibration, and facilitate surgical operations.

[0108] See also Figures 1 to 4 , Fig.15 , Fig.28 , Fig.42 , Fig.51 , Fig.55 , Fig.64 and Fig.72 In the present invention, the tibial osteotomy block locking device 100 includes a locking body 110 and a locking member 120. The locking body 110 has a mounting hole 111 along the axial direction, which is sleeved on the tibial osteotomy positioning tool 200, and the tibial osteotomy positioning tool 200 can move along the mounting hole 111. The locking member 120 is arranged on the locking body 110, and the locking member 120 has a locking hole along the axial direction for the tibial osteotomy positioning tool 200 to pass through, and the locking hole includes a local threaded hole 121 and a local light hole 122 corresponding to the local threaded hole 121. The locking member 120 can slide radially relative to the locking body 110, so that the local threaded hole 121 and the threaded section 210 of the tibial osteotomy positioning tool 200 are screwed together or separated.

[0109] The axial direction in the present invention refers to the axial direction of the tibial osteotomy positioning tool 200, that is, Figure 4 The locking body 110 is sleeved on the tibial osteotomy positioning tool 200 through the mounting hole 111, and the locking body 110 can move up and down along the tibial osteotomy positioning tool 200 through the mounting hole 111 and rotate relative to the tibial osteotomy positioning tool 200 to adjust the direction and height of the locking body 110, thereby determining the osteotomy direction and amount.

[0110] The locking member 120 can realize the locking and unlocking of the tibial osteotomy positioning tool 200, so that the locking member 120 and the locking body 110 can move up and down along the tibial osteotomy positioning tool 200 and rotate relative to the tibial osteotomy positioning tool 200. The threaded section 210 of the tibial osteotomy positioning tool 200 can cooperate with the local threaded hole 121 of the locking member 120, so that the tibial osteotomy block locking instrument 100 can reliably fix the tibial osteotomy block to the tibial osteotomy positioning tool 200, and can move up and down, rotate or fine-tune along the tibial osteotomy positioning tool 200, and at the same time, the tibial osteotomy block locking instrument 100 can also realize the rapid disassembly and assembly. For example, the locking member 120 is a block structure with a locking hole, which makes it easy to move the locking member 120 so that the locking member 120 can cooperate with the tibial osteotomy positioning tool 200, while also ensuring that the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are screwed together and fixed reliably.

[0111] It can be understood that the threaded section 210 of the tibial osteotomy positioning tool 200 is located on the outer peripheral surface of the tibial osteotomy positioning tool 200 and extends in the axial direction. Accordingly, the locking member 120 needs to move in the radial direction of the tibial osteotomy positioning tool 200 to enable the local threaded hole 121 of the locking member 120 to be screwed with the threaded section 210 of the tibial osteotomy positioning tool 200. When the locking member 120 reciprocates in the radial direction, the screwing and separation of the local threaded hole 121 and the threaded section 210 of the tibial osteotomy positioning tool 200 can be achieved.

[0112] Specifically, after the tibial osteotomy block locking device 100 is fixed to the tibial osteotomy positioning tool 200, the locking member 120 is pushed, and the locking member 120 can slide radially relative to the locking body 110, so that the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200. At this time, the tibial osteotomy block locking device 100 can be moved up and down along the tibial osteotomy positioning tool 200 to a desired position or rotate. The locking member 120 is pushed in the reverse direction, and the locking member 120 can slide relative to the locking body 110, so that the local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200, so that the tibial osteotomy block locking device 100 is locked, so that the tibial osteotomy block locking device 100 is reliably fixed to the tibial osteotomy positioning tool 200, and then the tibial osteotomy block is locked.

[0113] When it is necessary to fine-tune the position of the tibial osteotomy block, the local threaded hole 121 of the locking piece 120 is kept screwed with the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking instrument 100 is rotated. At this time, the local threaded hole 121 of the locking piece 120 can be rotated along the threaded section 210 of the tibial osteotomy positioning tool 200, that is, it can be moved on the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block.

[0114] The top of the locking body 110 can be in contact with the tibial osteotomy block, and the reliable positioning, fixing and position adjustment of the tibial osteotomy block can be achieved by the cooperation of the locking body 110 and the locking member 120 with the tibial osteotomy positioning tool 200. Specifically, when the position of the tibial osteotomy block needs to be adjusted, the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the medical staff manually adjusts the position of the locking body 110, and then the tibial osteotomy block on the locking body 110 can be driven to move up and down to adjust the position of the tibial osteotomy block. When the position and direction of the tibial osteotomy block are determined, the tibial osteotomy block is fixed to the tibia. After completing the positioning and fixing of the tibial osteotomy block, the locking member 120 is pushed, and the locking member 120 can slide radially relative to the locking body 110, so that the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed. At this time, the tibial osteotomy block can be used for osteotomy.

[0115] The tibial osteotomy block locking device 100 of the present invention is effectively solved the problem that the current tibial osteotomy block locking device 100 is easy to fall off due to vibration by screwing and separating the local threaded hole 121 with the threaded section 210 of the tibial osteotomy positioning tool 200, so that the tibial osteotomy block locking device 100 can firmly fix the tibial osteotomy block to prevent the tibial osteotomy block from falling off due to vibration. At the same time, the tibial osteotomy block locking device 100 can also be quickly assembled, disassembled and fine-tuned, with a simple structure and easy operation.

[0116] As an implementation method, the radial central angle of the local threaded hole 121 is less than or equal to 180°. In other words, the threaded hole is at most half of the locking hole. The arc edge of the local threaded hole 121 is connected to the arc edge of the local light hole 122, and the arc of the local threaded hole 121 can contact the threaded section 210 of the tibial osteotomy positioning tool 200, which will not limit the movement of the tibial osteotomy positioning tool 200 in and out, and can facilitate the cooperation between the threaded section 210 and the local threaded hole 121.

[0117] Furthermore, the major diameter of the local threaded hole 121 is the same as the major diameter of the threaded section 210 of the tibial osteotomy positioning tool 200. In this way, when the threaded section 210 is installed in the local threaded hole 121, it can be ensured that the local threaded hole 121 and the threaded section 210 are screwed together, ensuring that the locking member 120 is reliably fixed to the threaded section 210 of the tibial osteotomy positioning tool 200, thereby making the tibial osteotomy block reliably fixed to the tibial osteotomy positioning tool 200 to avoid falling due to vibration.

[0118] As an implementable embodiment, the inscribed circle diameter of the local light hole 122 is larger than the major diameter of the local threaded hole 121. In other words, the inscribed circle diameter of the local light hole 122 is larger than the major diameter of the threaded section 210 of the tibial osteotomy positioning tool 200, so that the threaded section 210 of the tibial osteotomy positioning tool 200 can be installed in the locking hole of the locking member 120. Moreover, the shape of the local light hole 122 is not limited in principle, and can be a polygon such as a square, a rectangle, or a circle, an ellipse, etc. In the present embodiment, the central angle of the local threaded hole 121 is 180°, and accordingly, the central angle of the local light hole 122 is also 180°. The local light hole 122 and the local threaded hole 121 form a complete locking hole for the tibial osteotomy positioning tool 200 to pass through.

[0119] Optionally, the difference between the diameter of the inscribed circle of the local light hole 122 and the major diameter of the local threaded hole 121 is greater than or equal to the difference between the major diameter and the minor diameter of the local threaded hole 121. In this way, it can be ensured that the local light hole 122 has sufficient accommodation space. When the local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200, there is a certain distance between the outer diameter of the threaded section 210 and the inner wall of the local light hole 122. When the tibial osteotomy block needs to be adjusted, the locking member 120 is pushed to separate the local threaded hole 121 from the threaded section 210 of the tibial osteotomy positioning tool 200. During this process, the outer diameter of the threaded section 210 is close to the inner wall of the local light hole 122, and the threaded section 210 is gradually separated from the local threaded hole 121. The above-mentioned size limitation can ensure that the local light hole 122 can accommodate the movement of the threaded segment 210 of the tibial osteotomy positioning tool 200, so that the threaded segment 210 and the local threaded hole 121 can be completely separated, avoiding the up and down movement of the locking piece 120 from interfering with the threaded segment 210, thereby facilitating the position adjustment of the tibial osteotomy block.

[0120] As an implementable embodiment, the diameter of the inscribed circle of the mounting hole 111 is larger than the major diameter of the local threaded hole 121. The mounting hole 111 of the locking body 110 is a light hole, and the outer diameter of the mounting hole 111 is larger than the major diameter of the threaded section 210 of the tibial osteotomy positioning tool 200. In this way, it can be ensured that the locking body 110 can move along the tibial osteotomy positioning tool 200, and the major diameter of the threaded section 210 of the tibial osteotomy positioning tool 200 is prevented from interfering with the inner wall of the mounting hole 111 of the locking body 110, which is convenient for installation, disassembly and position adjustment. Moreover, the shape of the mounting hole 111 is not limited in principle, and can be a polygon such as a square, a rectangle, or a circle, an ellipse, etc. In this embodiment, the shape of the mounting hole 111 is a circle. Further, the difference between the inscribed circle diameter of the mounting hole 111 and the major diameter of the local threaded hole 121 is greater than or equal to the difference between the major diameter and the minor diameter of the local threaded hole 121.

[0121] See also Figure 2 or Figure 3 As an embodiment, the locking body 110 includes a first body 112, a second body 113, and a connecting body 114 connecting the first body 112 and the second body 113. The second body 113 is spaced apart from the first body 112 and forms a sliding groove 115 with the first body 112 for installing the locking member 120. The locking member 120 can slide in the sliding groove 115. Preferably, the locking member 120 can slide in the sliding groove 115 toward or away from the connecting body 114. Figure 4 , Fig.15 , Fig.28 , Fig.42 , Fig.51 , Fig.55 , Fig.64 and Fig.72As shown, the upper part of the locking body 110 is the first body 112, and the lower part is the second body 113. The upper surface of the first body 112 abuts against the top of the tibial osteotomy block to support the tibial osteotomy block and adjust the position of the tibial osteotomy block. Moreover, the mounting hole 111 penetrates the first body 112 and the second body 113 from top to bottom for the tibial osteotomy positioning tool 200 to pass through.

[0122] The first body 112 and the second body 113 are arranged to form a sliding groove 115 for installing the locking member 120. Figure 4 , Fig.15 , Fig.28 , Fig.42 , Fig.51 , Fig.55 , Fig.64 and Fig.72 As shown. The locking member 120 can reciprocate in the sliding groove 115, and the locking member 120 can slide in the direction close to the connecting body 114, or slide in the direction away from the connecting body 114. When the locking member 120 moves in the direction close to the connecting body 114, the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200. At this time, the locking body 110 can move up and down along the tibial osteotomy positioning tool 200 to achieve the fixation of the tibial osteotomy block. When the locking member 120 moves in the direction away from the connecting body 114, the local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200. At this time, the locking member 120 is reliably fixed to the tibial osteotomy positioning tool 200, thereby making the tibial osteotomy block reliably fixed to the tibial osteotomy positioning tool 200.

[0123] Furthermore, the height of the sliding groove 115 along the axial direction is greater than the height of the locking member 120 along the axial direction. This ensures that the locking member 120 can be installed in the sliding groove 115 and can achieve reciprocating movement in the sliding groove 115.

[0124] As an implementable embodiment, the tibial osteotomy block locking device 100 further includes a guide assembly 130, which connects the locking body 110 and the locking member 120, and is used to guide the sliding of the locking member 120 relative to the locking body 110. The guide assembly 130 can ensure that the locking member 120 moves according to a predetermined trajectory, avoids the position of the locking member 120 from being deflected, and ensures that the local threaded hole 121 of the locking member 120 is accurately screwed with the threaded section 210 of the tibial osteotomy positioning tool 200, so that the locking member 120 is reliably fixed to the tibial osteotomy positioning tool 200. In addition, the guide assembly 130 can also limit the locking member 120 from sliding out of the sliding groove 115. At the same time, it can also ensure that the local threaded hole 121 of the locking member 120 is completely separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and avoids interference between the locking member 120 and the tibial osteotomy positioning tool 200 to affect the up and down movement of the locking member 120.

[0125] See also Figures 1 to 22 As an embodiment, the guide assembly 130 includes a first guide member 131 and a second guide member 132. The first guide member 131 is disposed on the locking body 110. The second guide member 132 is disposed on the locking member 120, and the locking member 120 slides relative to the locking body 110 through the cooperation between the second guide member 132 and the first guide member 131. The cooperation between the first guide member 131 and the second guide member 132 can guide the movement of the locking member 120, so that the local threaded hole 121 of the locking member 120 can be accurately screwed or completely separated from the threaded section 210 of the tibial osteotomy positioning tool 200.

[0126] In this embodiment, the number of the first guide member 131 and the number of the second guide member 132 are both one. Of course, in other embodiments of the present invention, the number of the first guide member 131 and the number of the second guide member 132 can also be two or more, and each first guide member 131 corresponds to one second guide member 132. In this embodiment, the first guide member 131 and the second guide member 132 are a matching structure of a guide protrusion and a guide groove. Of course, the first guide member 131 and the second guide member 132 can also be a structure that can achieve guidance, such as a slider and a slide groove or a slide rail.

[0127] See also Figures 1 to 11 In the first embodiment of the present invention, the first guide member 131 is a guide groove, and the second guide member 132 is a guide protrusion. That is, the locking body 110 has a guide groove, and the locking member 120 has a guide protrusion. The locking member 120 is located behind the sliding groove 115 of the locking body 110, and the guide protrusion is installed in the guide groove. When the locking member 120 reciprocates in the sliding groove 115, the guide protrusion can reciprocate along the guide groove to guide the locking member 120.

[0128] After the tibial osteotomy block locking instrument 100 is installed on the tibial osteotomy positioning tool 200, Figure 5 The locking member 120 is pushed in the left direction, the guide protrusion of the locking member 120 moves in the guide groove of the locking body 110, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, as shown in FIG. Figure 2 As shown. Then, the tibial osteotomy block locking device 100 is manually pushed to move up and down along the tibial osteotomy positioning tool 200, so that the locking body 110 can drive the tibial osteotomy block to move up and down to the desired position. The locking member 120 is pulled in the opposite direction, and the guide protrusion of the locking member 120 moves in the opposite direction in the guide groove of the locking body 110, and the local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200, so that the tibial osteotomy block locking device 100 is positioned, and then the tibial osteotomy block is locked, as shown. Figure 3 shown.

[0129] Those skilled in the art will appreciate that, in other embodiments, the local threaded hole 121 may also be disposed on the right side of the figure, while the local light hole 122 is disposed on the left side, so that when the locking member 120 is pushed to the left, the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and when the locking member 120 is pulled to the right, the local threaded hole 121 of the locking member 120 is screwed together with the threaded section 210 of the tibial osteotomy positioning tool 200.

[0130] When the position of the tibial osteotomy block needs to be fine-tuned, the local thread of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are kept in the screwed state, and the tibial osteotomy block locking device 100 is rotated, and the tibial osteotomy block locking device 100 can be moved relative to the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block. After the positioning and fixation of the tibial osteotomy block are completed, the locking member 120 is pushed to the left, and the guide protrusion of the locking member 120 moves in the guide groove of the locking body 110, and the local threaded hole 121 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed.

[0131] See also Figures 12 to 22 In the second embodiment of the present invention, the first guide member 131 is a guide protrusion, and the second guide member 132 is a guide groove. That is, the positions of the guide protrusion and the guide groove are interchanged, that is, the locking body 110 has a guide protrusion, and the locking member 120 has a guide groove. After the locking member 120 is installed in the sliding groove 115 of the locking body 110, the guide protrusion is located in the guide groove. When the locking member 120 reciprocates in the sliding groove 115, the guide sliding groove can reciprocate along the guide protrusion to guide the locking member 120.

[0132] After the tibial osteotomy block locking instrument 100 is installed on the tibial osteotomy positioning tool 200, Fig.16 As shown in the figure, the locking member 120 is pushed in the left direction, the guide groove of the locking member 120 can move along the guide protrusion of the locking body 110, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, as shown in the figure. Fig.14 As shown. Then, the tibial osteotomy block locking device 100 is manually pushed to move up and down along the tibial osteotomy positioning tool 200, so that the locking body 110 can drive the tibial osteotomy block to move up and down to the desired position. The locking member 120 is pulled in the opposite direction, and the guide groove of the locking member 120 can move in the opposite direction along the guide protrusion of the locking body 110, and the local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200 to achieve the positioning of the tibial osteotomy block locking device 100, and then the tibial osteotomy block is locked, as shown. Fig.13 shown.

[0133] When the position of the tibial osteotomy block needs to be fine-tuned, the local thread of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are kept in the screwed state, and the tibial osteotomy block locking device 100 is rotated, and the tibial osteotomy block locking device 100 can be moved relative to the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block. After the positioning and fixation of the tibial osteotomy block is completed, the locking member 120 is pushed to the left, and the guide groove of the locking member 120 can move along the guide protrusion of the locking body 110, and the local threaded hole 121 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed.

[0134] It should be noted that in the above-mentioned first embodiment and the second embodiment, the first guide member 131 is disposed on the second body 113. Of course, in other embodiments of the present invention, the first guide member 131 may also be disposed on the first body 112, or on both the first body 112 and the second body 113, and the position of the second guide member 132 is adapted to the first guide member 131.

[0135] See also Figures 1 to 22 It can be understood that the shapes of the guide protrusion and the guide groove are not limited in principle, as long as they can be used for guiding. In this embodiment, the outer contour of the guide protrusion is square, and correspondingly, the inner contour of the guide groove is also square. Of course, in other embodiments of the present invention, the outer contour of the guide protrusion can also be a long strip, a circle, etc. The inner contour of the guide groove is adapted to the outer contour of the guide protrusion.

[0136] Moreover, in the moving direction of the locking member 120, the length of the guide groove is greater than the length of the guide protrusion. In other words, the length of the inner contour of the guide groove in the moving direction of the locking member 120 is longer than the length of the outer contour of the guide protrusion in the moving direction of the locking member 120. In this way, a movement space can be provided for the movement of the guide protrusion, and the movement of the guide groove is prevented from being restricted by the guide groove, so that the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 cannot be completely separated. Further, the difference between the length of the guide groove and the length of the guide protrusion is greater than or equal to half of the difference between the major diameter and the minor diameter of the local threaded hole 121. In this way, the size of the guide groove and the guide protrusion can be guaranteed, so that the overall size of the tibial osteotomy block locking device 100 is small, and at the same time, it can also be guaranteed that the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 cannot be completely separated.

[0137] Optionally, in the direction perpendicular to the movement of the locking member 120, the width of the guide groove is greater than the width of the guide protrusion. In this way, the shaking of the guide protrusion in the guide groove can be reduced, so that the guide protrusion moves along a predetermined trajectory, so that the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 can be accurately screwed together and separated. At the same time, there is no interference between the guide protrusion and the guide groove, and the movement is smooth. Further, the difference between the width of the guide groove and the width of the guide protrusion is 0.05mm to 0.5mm.

[0138] See also Figures 23 to 50 As an embodiment, the guide assembly 130 includes an adjustment hole 134 and an adjustment member 133. The adjustment hole 134 is provided in the locking body 110 or the locking member 120. The adjustment member 133 is slidably provided in the adjustment hole 134, and penetrates the locking body 110 and the locking member 120 in the axial direction. The locking member 120 slides relative to the locking body 110 through the cooperation between the adjustment member 133 and the adjustment hole 134. When the locking member 120 reciprocates in the sliding groove 115, the adjustment member 133 can reciprocate along the adjustment hole 134 in the movement direction of the locking member 120 to guide the locking member 120.

[0139] See also Figures 23 to 36In the third embodiment of the present invention, the adjusting hole 134 is provided on the locking member 120, the adjusting member 133 is fixed to the locking body 110, and the locking member 120 slides along the adjusting member 133 through the adjusting hole 134. It can be understood that the locking body 110 has a first fixing hole 116, the adjusting member 133 is fixedly installed in the first fixing hole 116, and the adjusting hole 134 of the locking member 120 can be penetrated. When the locking member 120 reciprocates in the sliding groove 115, the locking member 120 can reciprocate along the adjusting member 133 through the adjusting hole 134 to guide the locking member 120. Preferably, the adjusting member 133 is installed in the locking body 110 in an interference fit manner. That is, the adjusting member 133 can be installed in the first fixing hole 116 in an interference fit manner to prevent the adjusting member 133 from falling. Of course, the adjusting member 133 can also be fixed to the first fixing hole 116 by threaded fastening, gluing, etc.

[0140] The tibial osteotomy block locking instrument 100 is mounted on the tibial osteotomy positioning tool 200, along Fig.29 As shown in the figure, the locking member 120 is pushed in the left direction, and the locking member 120 can move along the adjusting member 133 through the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, as shown in the figure. Fig.26 Then, the tibial osteotomy block locking device 100 is manually pushed to move up and down along the tibial osteotomy positioning tool 200, so that the locking body 110 can drive the tibial osteotomy block to move up and down to the desired position. The locking member 120 is pulled in the opposite direction, and the locking member 120 can move in the opposite direction along the adjusting member 133 through the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200 to achieve the positioning of the tibial osteotomy block locking device 100, and then the tibial osteotomy block is locked, as shown in FIG. Fig.24 shown.

[0141] When the position of the tibial osteotomy block needs to be fine-tuned, the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are kept in the screwed state, and the tibial osteotomy block locking device 100 is rotated, and the tibial osteotomy block locking device 100 can be moved relative to the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block. After the positioning and fixation of the tibial osteotomy block is completed, the locking member 120 is pushed to the left, and the locking member 120 can move along the adjusting member 133 through the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed.

[0142] See also Figures 37 to 50In the fourth embodiment of the present invention, the adjusting hole 134 is provided on the locking body 110, the adjusting member 133 is fixed to the locking member 120, and the locking member 120 slides along the adjusting hole 134 through the adjusting member 133. It can be understood that the locking member 120 has a second fixing hole 123, the adjusting member 133 is fixedly installed in the second fixing hole 123, and the adjusting hole 134 of the locking body 110 can be penetrated. When the locking member 120 reciprocates in the sliding groove 115, the locking member 120 can drive the adjusting member 133 to reciprocate along the adjusting groove to guide the locking member 120. Preferably, the adjusting member 133 is installed on the locking member 120 in an interference fit manner. That is, the adjusting member 133 can be installed in the second fixing hole 123 in an interference fit to prevent the adjusting member 133 from falling. Of course, the adjusting member 133 can also be fixed to the second fixing hole 123 by threaded fastening, gluing, etc.

[0143] The tibial osteotomy block locking instrument 100 is mounted on the tibial osteotomy positioning tool 200, along Fig.43 As shown in the figure, the locking member 120 is pushed in the left direction, and the locking member 120 can drive the adjusting member 133 to move along the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, as shown in the figure. Fig.40 Then, the tibial osteotomy block locking device 100 is manually pushed to move up and down along the tibial osteotomy positioning tool 200, so that the locking body 110 can drive the tibial osteotomy block to move up and down to the desired position. The locking member 120 is pulled in the opposite direction, and the locking member 120 can drive the adjusting member 133 to move along the adjusting hole 134. The local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200 to achieve the positioning of the tibial osteotomy block locking device 100, and then the tibial osteotomy block is locked, as shown in FIG. Fig.38 shown.

[0144] When the position of the tibial osteotomy block needs to be fine-tuned, the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are kept in the screwed state, and the tibial osteotomy block locking device 100 is rotated, and the tibial osteotomy block locking device 100 can move relative to the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block. After the positioning and fixation of the tibial osteotomy block is completed, the locking member 120 is pushed to the left, and the locking member 120 can drive the adjusting member 133 to move along the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed.

[0145] See also Figures 23 to 50Optionally, the number of the adjusting member 133 and the adjusting hole 134 is at least two, and at least two adjusting members 133 and the adjusting holes 134 are evenly distributed along the circumference of the locking hole. In this embodiment, the number of the adjusting member 133 and the adjusting hole 134 is two. Optionally, the adjusting member 133 can be a pin shaft, etc., and the adjusting hole 134 is an elongated hole. In this embodiment, the adjusting member 133 is a cylindrical pin, and the adjusting hole 134 is an elongated hole.

[0146] As an implementation method, the length of the adjustment hole 134 along the movement direction of the locking member 120 is greater than the length of the adjustment hole 134 along the direction perpendicular to the movement direction of the locking member 120. In this way, the locking member 120 can be ensured to move along a predetermined trajectory, so that the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 can be accurately screwed together and separated.

[0147] Further, in the movement direction of the locking member 120, the length of the adjustment hole 134 is greater than the length of the adjustment member 133. In this way, it can be ensured that the adjustment hole 134 has enough space for the adjustment member 133 to move, so as to guide the sliding movement of the locking member 120, so that the local threaded hole 121 of the locking member 120 can be accurately screwed or disengaged with the threaded section 210 of the tibial osteotomy positioning tool 200. Preferably, the longest movable length of the adjustment member 133 is greater than or equal to half of the difference between the major diameter and the minor diameter of the local threaded hole 121. In other words, the adjustment member 133 moves to an extreme position in the adjustment hole 134, and the adjustment member 133 contacts the inner wall on one side of the adjustment hole 134. At this time, the gap between the adjustment member 133 and the inner wall on the other side of the adjustment hole 134 is greater than half of the difference between the major diameter and the minor diameter of the local threaded hole 121 of the locking member 120.

[0148] Furthermore, in the direction perpendicular to the movement of the locking member 120, the width of the adjustment hole 134 is greater than the width of the adjustment member 133. This ensures that the locking member 120 moves along a predetermined trajectory, so that the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 can be accurately screwed together and separated. Preferably, the difference between the width of the adjustment hole 134 and the width of the adjustment member 133 is 0.05 mm to 0.5 mm.

[0149] See also Figures 51 to 74As an embodiment, the guide assembly 130 further includes an elastic member 135, which is disposed between the locking body 110 and the locking member 120 along the movement direction of the locking member 120. The elastic restoring force provided by the elastic member 135 enables the local threaded hole 121 of the locking member 120 to be screwed together with the threaded section 210 of the tibial osteotomy positioning tool 200. It should be noted that the elastic member 135 between the locking member 120 and the locking body 110 is in a compressed state. When the locking member 120 is not subjected to external force but only to the elastic force of the elastic member 135, the local threaded hole 121 of the locking member 120 is screwed together with the threaded section 210 of the tibial osteotomy positioning tool 200. Fig.51 As shown in the figure, the locking member 120 is pushed in the left direction, the elastic member 135 is compressed by the external force, the locking member 120 moves in the guide groove of the locking body 110, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200. At this time, the position of the tibial osteotomy block locking device 100 can be adjusted. After the adjustment is completed, the locking member 120 is released. At this time, the locking member 120 is automatically reset under the action of the elastic member 135, so that the local threaded hole 121 of the locking member 120 is engaged with the threaded section 210 of the tibial osteotomy positioning tool 200.

[0150] Optionally, the elastic member 135 is an elastic column or a spring. For example, the elastic member 135 is a spring, and the compression force of the spring at the compressed height is less than 60N. In this embodiment, the elastic member 135 is a spring. Further, the locking body 110 has a first mounting groove 117, the locking member 120 has a second mounting groove 124, one end of the elastic member 135 is located in the first mounting groove 117, and the other end of the elastic member 135 is located in the second mounting groove 124. The first mounting groove 117 and the second mounting groove 124 are used to accommodate the elastic member 135 and limit the elastic member 135 to prevent the elastic member 135 from moving when compressed, so as to ensure that the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 can be accurately separated.

[0151] Moreover, the diameter of the first mounting groove 117 is the same as the diameter of the second mounting groove 124 and the diameter of the elastic member 135. In this way, the elastic member 135 can be reliably fixed in the first mounting groove 117 and the second mounting groove 124. Optionally, the number of the elastic member 135 is at least one, and the number of the first mounting grooves 117 is equal to the number of the elastic members 135 and also equal to the number of the second mounting grooves 124.

[0152] See also Figure 51 to Figure 54In the fifth embodiment of the present invention, the elastic member 135 is combined with the first embodiment, that is, the elastic member 135 is arranged between the locking member 120 and the locking body 110, the first guide member 131 is a guide groove, and the second guide member 132 is a guide protrusion. The locking member 120 is located behind the sliding groove 115 of the locking body 110, and the guide protrusion is installed in the guide groove.

[0153] After the tibial osteotomy block locking instrument 100 is installed on the tibial osteotomy positioning tool 200, Fig.52 As shown in the figure, the locking member 120 is pushed in the left direction, the elastic member 135 is compressed, the guide protrusion of the locking member 120 moves in the guide groove of the locking body 110, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, as shown in the figure. Fig.52 As shown. Then, manually push the tibial osteotomy block locking device 100 to move up and down along the tibial osteotomy positioning tool 200, so that the locking body 110 can drive the tibial osteotomy block to move up and down to the desired position. Release the locking member 120, and the elastic member 135 partially rebounds from the compressed state. The locking member 120 is acted upon by the elastic force of the elastic member 135, so that the guide protrusion of the locking member 120 can move in the opposite direction in the guide groove of the locking body 110, and the local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200, so as to realize the positioning of the tibial osteotomy block locking device 100, and then realize the locking of the tibial osteotomy block, as shown. Fig.51 Moreover, the elastic member 135 in the compressed state can maintain the screwing of the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200, thereby achieving the positioning and locking of the tibial osteotomy block.

[0154] When the position of the tibial osteotomy block needs to be fine-tuned, the local thread of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are kept in the screwed state, and the tibial osteotomy block locking device 100 is rotated, and the tibial osteotomy block locking device 100 can be moved relative to the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block. After the positioning and fixation of the tibial osteotomy block are completed, the locking member 120 is pushed leftward, the elastic member 135 is compressed, the guide protrusion of the locking member 120 moves in the guide groove of the locking body 110, and the local threaded hole 121 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed.

[0155] See also Figure 55 to Figure 58 In the sixth embodiment of the present invention, the elastic member 135 is combined with the second embodiment, that is, the elastic member 135 is arranged between the locking member 120 and the locking body 110, the first guide member 131 is a guide protrusion, and the second guide member 132 is a guide groove. The locking member 120 is located behind the sliding groove 115 of the locking body 110, and the guide protrusion is installed in the guide groove.

[0156] After the tibial osteotomy block locking instrument 100 is installed on the tibial osteotomy positioning tool 200, Fig.56 As shown in the figure, the locking member 120 is pushed in the left direction, the elastic member 135 is compressed, the guide groove of the locking member 120 can move along the guide protrusion of the locking body 110, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, as shown in the figure. Fig.56 As shown. Then, manually push the tibial osteotomy block locking device 100 to move up and down along the tibial osteotomy positioning tool 200, so that the locking body 110 can drive the tibial osteotomy block to move up and down to the desired position. Release the locking member 120, and the elastic member 135 partially rebounds from the compressed state. The locking member 120 is subjected to the elastic force of the elastic member 135, so that the guide groove of the locking member 120 can move in the opposite direction along the guide protrusion of the locking body 110, and the local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200 to achieve the positioning of the tibial osteotomy block locking device 100, and then achieve the locking of the tibial osteotomy block, as shown. Fig.55 Moreover, the elastic member 135 in the compressed state can maintain the screwing of the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200, thereby achieving the positioning and locking of the tibial osteotomy block.

[0157] When the position of the tibial osteotomy block needs to be fine-tuned, the local thread of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are kept in the screwed state, and the tibial osteotomy block locking device 100 is rotated, and the tibial osteotomy block locking device 100 can be moved relative to the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block. After the positioning and fixation of the tibial osteotomy block are completed, the locking member 120 is pushed to the left, the elastic member 135 is compressed, the guide groove of the locking member 120 can move along the guide protrusion of the locking body 110, and the local threaded hole 121 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed.

[0158] See also Figure 59 to Figure 66 In the seventh embodiment of the present invention, the elastic member 135 is combined with the third embodiment, that is, the elastic member 135 is arranged between the locking member 120 and the locking body 110, the adjustment hole 134 is arranged in the locking member 120, the adjustment member 133 is fixed to the locking body 110, and the locking member 120 slides along the adjustment member 133 through the adjustment hole 134.

[0159] The tibial osteotomy block locking instrument 100 is mounted on the tibial osteotomy positioning tool 200, along Fig.60As shown in the figure, the locking member 120 is pushed in the left direction, the elastic member 135 is compressed, the locking member 120 can move along the adjusting member 133 through the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, as shown in the figure. Fig.62 As shown. Then, the tibial osteotomy block locking device 100 is manually pushed to move up and down along the tibial osteotomy positioning tool 200, so that the locking body 110 can drive the tibial osteotomy block to move up and down to the desired position. The locking member 120 is released, and the elastic member 135 partially rebounds from the compressed state. The locking member 120 is subjected to the elastic force of the elastic member 135, so that the locking member 120 can move in the opposite direction along the adjusting member 133 through the adjusting hole 134. The local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200 to achieve the positioning of the tibial osteotomy block locking device 100, and then the locking of the tibial osteotomy block is achieved, as shown in FIG. Fig.60 shown.

[0160] When the position of the tibial osteotomy block needs to be fine-tuned, the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are kept in the screwed state, and the tibial osteotomy block locking device 100 is rotated, and the tibial osteotomy block locking device 100 can be moved relative to the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block. After the positioning and fixation of the tibial osteotomy block is completed, the locking member 120 is pushed to the left, the elastic member 135 is compressed, the locking member 120 can move along the adjusting member 133 through the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed.

[0161] See also Figures 67 to 74 In the eighth embodiment of the present invention, the elastic member 135 is combined with the third embodiment, that is, the elastic member 135 is arranged between the locking member 120 and the locking body 110, the adjustment hole 134 is arranged in the locking body 110, the adjustment member 133 is fixed to the locking member 120, and the locking member 120 slides along the adjustment hole 134 through the adjustment member 133.

[0162] The tibial osteotomy block locking instrument 100 is mounted on the tibial osteotomy positioning tool 200, along Fig.68 As shown in the figure, the locking member 120 is pushed in the left direction, the elastic member 135 is compressed, the locking member 120 can drive the adjusting member 133 to move along the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, as shown in the figure. Fig.70As shown. Then, manually push the tibial osteotomy block locking device 100 to move up and down along the tibial osteotomy positioning tool 200, so that the locking body 110 can drive the tibial osteotomy block to move up and down to the desired position. Release the locking member 120, and the elastic member 135 partially rebounds from the compressed state. The locking member 120 is acted upon by the elastic force of the elastic member 135, so that the locking member 120 can drive the adjusting member 133 to move along the adjusting hole 134. The local threaded hole 121 of the locking member 120 is screwed with the threaded section 210 of the tibial osteotomy positioning tool 200, so as to realize the positioning of the tibial osteotomy block locking device 100, and then realize the locking of the tibial osteotomy block, as shown. Fig.68 shown.

[0163] When the position of the tibial osteotomy block needs to be fine-tuned, the local threaded hole 121 of the locking member 120 and the threaded section 210 of the tibial osteotomy positioning tool 200 are kept in the screwed state, and the tibial osteotomy block locking device 100 is rotated, and the tibial osteotomy block locking device 100 can be moved relative to the tibial osteotomy positioning tool 200 to achieve fine-tuning of the tibial osteotomy block. After the positioning and fixation of the tibial osteotomy block is completed, the locking member 120 is pushed to the left, the elastic member 135 is compressed, and the locking member 120 can drive the adjusting member 133 to move along the adjusting hole 134, and the local threaded hole 121 of the locking member 120 is separated from the threaded section 210 of the tibial osteotomy positioning tool 200, and the tibial osteotomy block locking device 100 can be quickly removed.

[0164] The tibial osteotomy block locking device 100 of the present invention has a simple structure. By screwing and separating the local threaded hole 121 and the threaded section 210 of the tibial osteotomy positioning tool 200, the problem that the current tibial osteotomy block locking device 100 is easy to fall off due to vibration is effectively solved, so that the tibial osteotomy block locking device 100 can firmly fix the tibial osteotomy block and prevent the tibial osteotomy block from falling off due to vibration. At the same time, the tibial osteotomy block locking device 100 can also be quickly assembled, disassembled and fine-tuned, and the operation is convenient and reliable, and the surgical efficiency is high.

[0165] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0166] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A tibial osteotomy block locking device, characterized in that: Installed on a tibial osteotomy positioning tool, the tibial osteotomy positioning tool having a threaded section; The tibial osteotomy block locking instrument comprises a locking body and a locking member; The locking body has a mounting hole along the axial direction and is sleeved on the tibial osteotomy positioning tool, and the tibial osteotomy positioning tool can move along the mounting hole, and the locking body has a space inside to accommodate the locking member; and The locking piece is arranged inside the locking piece of the locking body, and the locking piece has a locking hole along the axial direction for the tibial osteotomy positioning tool to pass through, and the locking hole includes a local threaded hole and a local light hole corresponding to the local threaded hole. The locking piece can slide relative to the locking body along the radial direction of the tibial osteotomy positioning tool, so that the local threaded hole and the threaded section of the tibial osteotomy positioning tool are screwed together or separated, and the locking piece can also rotate relative to the tibial osteotomy positioning tool.

2. The tibial osteotomy block locking device according to claim 1, characterized in that: The radial center angle of the local threaded hole is less than or equal to 180°.

3. The tibial osteotomy block locking instrument according to claim 1, characterized in that: The major diameter of the local threaded hole is the same as the major diameter of the threaded section of the tibial osteotomy positioning tool; The inscribed circle diameter of the local light hole is larger than the major diameter of the local threaded hole; and / or the difference between the inscribed circle diameter of the local light hole and the major diameter of the local threaded hole is greater than or equal to the difference between the major diameter and the minor diameter of the local threaded hole.

4. The tibial osteotomy block locking instrument according to claim 1, characterized in that: The diameter of the inscribed circle of the mounting hole is larger than the major diameter of the local threaded hole; And / or, the difference between the diameter of the inscribed circle of the mounting hole and the major diameter of the local threaded hole is greater than or equal to the difference between the major diameter and the minor diameter of the local threaded hole.

5. The tibial osteotomy block locking instrument according to claim 1, characterized in that: The tibial osteotomy block locking instrument also includes a guide assembly; The guide assembly includes a guide protrusion arranged on the locking body and a guide groove arranged on the locking member, or includes a guide groove arranged on the locking body and a guide protrusion arranged on the locking member, and the locking member slides relative to the locking body through the cooperation between the guide groove and the guide protrusion.

6. The tibial osteotomy block locking instrument according to claim 1, characterized in that: The tibial osteotomy block locking instrument further comprises a guide assembly, wherein the guide assembly comprises: an adjustment hole axially penetrating the locking body or the locking member, wherein a length of the adjustment hole along a moving direction of the locking member in a radial cross section is greater than a length perpendicular to the moving direction of the locking member; and The adjusting member inserted in the adjusting hole passes through the locking body and the locking member in the axial direction and can slide radially along the adjusting hole. The locking member slides relative to the locking body through the cooperation between the adjusting member and the adjusting hole.

7. The tibial osteotomy block locking instrument according to claim 6, characterized in that: The adjusting hole is provided in the locking body, the adjusting member is inserted into the locking member in an interference fit manner, and the locking member slides along the adjusting hole through the adjusting member; or, The adjusting hole is arranged on the locking member, the adjusting member is penetrated through the locking body in an interference fit manner, and the locking member slides along the adjusting member through the adjusting hole.

8. The tibial osteotomy block locking instrument according to claim 7, characterized in that: In the movement direction of the locking member, the length of the adjustment hole is greater than the length of the adjustment member, and / or the longest length that the adjustment member can move is greater than or equal to half of the difference between the major diameter and the minor diameter of the local threaded hole; In a direction perpendicular to the movement of the locking member, the width of the adjusting hole is greater than the width of the adjusting member, and / or the difference between the width of the adjusting hole and the width of the adjusting member is 0.05 mm to 0.5 mm.

9. The tibial osteotomy block locking instrument according to any one of claims 5 to 8, characterized in that: The guide assembly also includes an elastic member, which is arranged between the locking body and the locking member along the movement direction of the locking member. The elastic restoring force provided by the elastic member can enable the local threaded hole of the locking member to be screwed into or separated from the threaded section of the tibial osteotomy positioning tool.

10. The tibial osteotomy block locking instrument according to claim 9, characterized in that: The locking body has a first mounting groove, the locking member has a second mounting groove, one end of the elastic member is located in the first mounting groove, and the other end of the elastic member is located in the second mounting groove.

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