Osteotomy tools

Abstract

The present invention provides an osteotomy tool. In order to achieve the above-mentioned purpose, the present invention provides an osteotomy tool, comprising: a first connecting plate having a first bone connecting portion; a shell, fixedly connected to the first connecting plate; a slider, movably arranged in the shell; an adjustment block, connected to the slider with an adjustable angle; a second connecting plate, having a second bone connecting portion, the second connecting plate being fixedly connected to the adjustment block; a connecting rod mechanism, connected between the shell and the slider; wherein the connecting rod mechanism comprises an adjustment shaft adjustable in position on the shell, a connecting shaft arranged on the slider, and a connecting rod connected between the connecting shaft and the adjustment shaft, and when the adjustment shaft is adjusted in position on the shell, the adjustment shaft drives the connecting shaft to move through the connecting rod, so that the slider can move in the shell. The technical solution of the present application effectively solves the problem that the use of osteotomy tools and orthopedic tools in the related art is troublesome.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an osteotomy tool. Background Art

[0002] Osteotomy and correction operations include osteotomy and correction operations. When performing an osteotomy, an osteotomy tool needs to be connected to the autologous bone, and then the autologous bone is cut to reduce the movement of the autologous bone during osteotomy and make the position of the osteotomy more accurate. After osteotomy, correction operations are required to adjust the relative position of the two sections of osteotomy to facilitate growth recovery. When performing a correction operation, an correction tool needs to be connected between the two sections of osteotomy. The correction tool is used to adjust the relative position of the two sections of autologous bone and fix the relative position of the two sections of autologous bone, so that the two sections of osteotomy can be fixed later, which is conducive to growth recovery.

[0003] In the related art, when switching from osteotomy to orthopedic operation, the osteotomy tool needs to be removed from the osteotomy, and then replaced with an orthopedic tool connected to the osteotomy, which makes the use of the osteotomy tool and the orthopedic tool more troublesome. Summary of the invention

[0004] The main purpose of the present invention is to provide an osteotomy tool to solve the problem that osteotomy tools and orthopedic tools in the related art are troublesome to use.

[0005] In order to achieve the above-mentioned objectives, the present invention provides an osteotomy tool, comprising: a first connecting plate, having a first bone connecting portion; a shell, fixedly connected to the first connecting plate; a slider, movably arranged in the shell; an adjusting block, connected to the slider with an adjustable angle; a second connecting plate, having a second bone connecting portion, the second connecting plate being fixedly connected to the adjusting block; a connecting rod mechanism, connected between the shell and the slider; wherein the connecting rod mechanism comprises an adjusting shaft adjustably arranged on the shell, a connecting shaft arranged on the slider, and a connecting rod connected between the connecting shaft and the adjusting shaft, and when the adjusting shaft is adjusted in position on the shell, the adjusting shaft drives the connecting shaft to move through the connecting rod, so that the slider can move in the shell.

[0006] Furthermore, a plurality of spaced-apart sockets are provided on the shell, and the adjusting shaft can be selectively inserted into one of the plurality of sockets. When the adjusting shaft is plugged into the socket, the slider is fixed in the shell.

[0007] Furthermore, the osteotomy tool also includes a first locking piece arranged on the shell, the adjusting shaft and the connecting rod can be floatingly connected, and the adjusting shaft is provided with a locking hole and an unlocking hole arranged at intervals along the floating direction of the adjusting shaft; when the first locking piece is inserted into the locking hole, the adjusting shaft and the socket maintain plug-in fit; when the first locking piece is inserted into the unlocking hole, the adjusting shaft and the socket avoid fit.

[0008] Furthermore, the first locking member includes a mounting shaft rotatably disposed on the housing and a locking rod telescopically disposed on the mounting shaft, and the distances between the plurality of insertion holes and the axis of the mounting shaft are all equal.

[0009] Furthermore, the first locking member also includes a first elastic member connected between the mounting shaft and the locking rod, the first elastic member applies a first elastic force to the locking rod so that the locking rod can maintain an inserted fit with the locking hole or the unlocking hole; and / or, an operating protrusion is provided on the locking rod.

[0010] Furthermore, the osteotomy tool also includes a second elastic member arranged between the adjustment shaft and the connecting rod, the second elastic member is sleeved on the adjustment shaft and applies a second elastic force to the adjustment shaft so that the adjustment shaft and the socket can maintain plug-in fit.

[0011] Furthermore, the osteotomy tool also includes a second locking piece arranged on the slider and an adjusting wheel fixedly arranged on the adjusting block, the second locking piece has a locked state and an unlocked state; when the second locking piece is in the locked state, the second locking piece is locked and matched with the adjusting wheel to fix the angle between the slider and the adjusting block; when the second locking piece is in the unlocked state, the second locking piece is avoided and matched with the adjusting wheel to make the angle between the slider and the adjusting block adjustable.

[0012] Furthermore, the second locking member includes a lock shell arranged on the slider and a limit member movably arranged on the lock shell, and the limit member moves to cooperate with the adjusting wheel in a limiting manner or in an avoiding manner. When the limit member cooperates with the adjusting wheel in a limiting manner, the second locking member is in a locked state; when the limit member cooperates with the adjusting wheel in an avoiding manner, the second locking member is in an unlocked state; the adjusting wheel is the first gear, and when the limit member cooperates with the adjusting wheel in a limiting manner, the limit member is inserted into the tooth groove of the first gear.

[0013] Furthermore, a rack portion is provided on the limiting member, and the second locking member further includes a second gear rotatably provided in the lock housing, the second gear is meshed with the rack portion, and the second gear rotates to drive the limiting member to move.

[0014] Furthermore, the second locking piece also includes a third gear rotatably arranged on the lock shell, and the lock shell is provided with an avoidance hole, the third gear meshes with the second gear and passes through the avoidance hole to the outside of the lock shell; the osteotomy tool also includes a third locking piece arranged on the lock shell, the third locking piece includes a mounting block, a third elastic piece and an abutment piece, the mounting block is fixedly arranged on the lock shell, the third elastic piece is connected between the mounting block and the abutment piece, the abutment piece has an abutment position that abuts with the third gear and stops rotation and an avoidance position that avoids the third gear, and the third elastic piece applies a third elastic force to the abutment piece so that the abutment piece can be maintained in the abutment position.

[0015] Furthermore, a pin hole and a pin shaft rotatably arranged in the pin hole are arranged between the slider and the adjusting block, the pin hole is arranged on one of the slider and the adjusting block, and the pin shaft is arranged on the other of the slider and the adjusting block.

[0016] By applying the technical solution of the present invention, the osteotomy tool includes: a first connecting plate, a shell, a slider, an adjustment block, a second connecting plate and a connecting rod mechanism. The first connecting plate has a first bone connecting portion. The shell is fixedly connected to the first connecting plate. The slider is movably arranged in the shell. The adjustment block is connected to the slider at an adjustable angle. The second connecting plate has a second bone connecting portion, and the second connecting plate is fixedly connected to the adjustment block. The connecting rod mechanism is connected between the shell and the slider. Among them, the connecting rod mechanism includes an adjustment shaft that is adjustably arranged on the shell, a connecting shaft that is arranged on the slider, and a connecting rod connected between the connecting shaft and the adjustment shaft. When the adjustment shaft is adjusted in position on the shell, the adjustment shaft drives the connecting shaft to move through the connecting rod so that the slider can move in the shell. In this way, the osteotomy tool is fixed at a preset osteotomy position, and the first bone connecting portion and the second bone connecting portion are fixedly connected to the autologous bone. An osteotomy operation is performed at the osteotomy position to cut the autologous bone into two osteotomy sections, and during the osteotomy operation, the first bone connection part and the second bone connection part are fixedly connected to the autologous bone, so that the first bone connection part can be connected to one osteotomy section, and the second bone connection part can be connected to another osteotomy section. After the osteotomy operation is completed, the slider is driven to move in the shell to adjust the distance between the first connecting plate and the second connecting plate, thereby adjusting the distance between one osteotomy section and another osteotomy section. By adjusting the angle between the slider and the adjustment block, the angle between the first connecting plate and the second connecting plate can be adjusted, thereby adjusting the angle between one osteotomy section and another osteotomy section, so that the two osteotomy sections can be corrected to a preset relative position, which is convenient for the fixation operation of the two osteotomy sections. In addition, through the setting of the connecting rod mechanism, the movement of the slider in the shell is more stable and reliable, so that the distance adjustment between one osteotomy section and another osteotomy section is more stable and reliable, and the use steps of the osteotomy tool are further simplified. In summary, when using the osteotomy tool of the present application, when switching from osteotomy operation to orthopedic operation, it is not necessary to remove the osteotomy tool from the osteotomy, making the osteotomy tool easy to use. Therefore, the technical solution of the present application effectively solves the problem that the use of osteotomy tools and orthopedic tools in the related art is troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of an osteotomy tool according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of the osteotomy tool without showing a partial shell;

[0020] Figure 3 Shows Figure 2 A schematic top view of an osteotomy tool;

[0021] Figure 4 Shows Figure 1 A cross-sectional schematic diagram of a first locking piece of an osteotomy tool when inserted into a locking hole;

[0022] Figure 5 Shows Figure 1 A cross-sectional schematic diagram of a first locking piece of an osteotomy tool when inserted into an unlocking hole;

[0023] Figure 6 Shows Figure 1 A schematic diagram of the three-dimensional structure of the second locking piece of the osteotomy tool;

[0024] Figure 7 Shows Figure 6 A partial enlarged view of the osteotomy tool at A;

[0025] Figure 8 Shows Figure 1 A schematic three-dimensional structural diagram of the third locking piece of the osteotomy tool.

[0026] The above drawings include the following reference numerals:

[0027] 10. A first connecting plate;

[0028] 20. housing; 21. jack; 22. mounting shaft; 23. locking rod; 24. first elastic member;

[0029] 30. Slider; 31. Lock housing; 32. Stopper; 33. Rack; 34. Second gear; 35. Third gear;

[0030] 40. Adjustment block; 41. Adjustment wheel; 42. Pin shaft;

[0031] 50. Second connecting plate;

[0032] 60. connecting rod mechanism; 61. adjusting shaft; 611. locking hole; 612. unlocking hole; 62. connecting shaft; 63. connecting rod;

[0033] 71. a second elastic member;

[0034] 81. Mounting block; 82. Third elastic member; 83. Abutting member. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0038] Applying the technical solution of this embodiment, the osteotomy tool includes: a first connecting plate 10, a housing 20, a slider 30, an adjustment block 40, a second connecting plate 50 and a connecting rod mechanism 60. The first connecting plate 10 has a first bone connection portion. The housing 20 is fixedly connected to the first connecting plate 10. The slider 30 is movably arranged in the housing 20. The adjustment block 40 is connected to the slider 30 at an adjustable angle. The second connecting plate 50 has a second bone connection portion, and the second connecting plate 50 is fixedly connected to the adjustment block 40. The connecting rod mechanism 60 is connected between the housing 20 and the slider 30. Among them, the connecting rod mechanism 60 includes an adjustment shaft 61 that is adjustably arranged on the housing 20, a connecting shaft 62 that is arranged on the slider 30, and a connecting rod 63 connected between the connecting shaft 62 and the adjustment shaft 61. When the adjustment shaft 61 is adjusted in position on the housing 20, the adjustment shaft 61 drives the connecting shaft 62 to move through the connecting rod 63, so that the slider 30 can move in the housing 20.

[0039] In this way, the osteotomy tool is fixed at a preset osteotomy position, and the first bone connection part and the second bone connection part are fixedly connected to the autologous bone. The osteotomy operation is performed at the osteotomy position to cut the autologous bone into two sections of osteotomy, and during the osteotomy operation, the first bone connection part and the second bone connection part are fixedly connected to the autologous bone, so that the first bone connection part can be connected to one section of osteotomy, and the second bone connection part can be connected to another section of osteotomy. After the osteotomy operation is completed, the driving slider 30 moves in the housing 20 to adjust the distance between the first connecting plate 10 and the second connecting plate 50, thereby adjusting the distance between one section of osteotomy and another section of osteotomy. By adjusting the angle between the slider 30 and the adjusting block 40, the angle between the first connecting plate 10 and the second connecting plate 50 can be adjusted, thereby adjusting the angle between one section of osteotomy and another section of osteotomy, so that the two sections of osteotomy can be corrected into a preset relative position, which is convenient for the fixation operation of the two sections of osteotomy. Furthermore, by setting the connecting rod mechanism 60, the movement of the slider 30 in the housing 20 is more stable and reliable, so that the distance adjustment between one osteotomy section and another osteotomy section is more stable and reliable, and the use steps of the osteotomy tool are further simplified. In summary, when using the osteotomy tool in the present application, when switching from the osteotomy operation to the orthopedic operation, it is not necessary to remove the osteotomy tool from the osteotomy, making the osteotomy tool easy to use. Therefore, the technical solution of this embodiment effectively solves the problem that the use of osteotomy tools and orthopedic tools in the related art is more troublesome.

[0040] like Figures 1 to 8As shown, a plurality of spaced-apart sockets 21 are provided on the housing 20, and the adjusting shaft 61 can be selectively inserted into one of the plurality of sockets 21. When the adjusting shaft 61 is plugged into the socket 21, the slider 30 is fixed in the housing 20. By providing a plurality of spaced-apart sockets 21 on the housing 20, the adjusting shaft 61 can be selectively inserted into different sockets 21 as needed, thereby providing a plurality of pre-set position options. This design allows the operator to accurately adjust the relative distance between the first connecting plate 10 and the second connecting plate 50, and then adjust the distance between the two sections of osteotomy, thereby achieving precise control of autologous bone correction. At the same time, the plug-in fit between the adjusting shaft 61 and the socket 21 ensures the fixation and stability of the slider 30 in the housing 20, avoids errors caused by the movement of the slider 30 during the correction process, and thus improves the accuracy and safety of the correction operation.

[0041] like Figures 1 to 8 As shown, the osteotomy tool also includes a first locking member arranged on the housing 20, the adjustment shaft 61 and the connecting rod 63 can be connected in a floating manner, and the adjustment shaft 61 is provided with a locking hole 611 and an unlocking hole 612 arranged at intervals along the floating direction of the adjustment shaft 61. When the first locking member is inserted into the locking hole 611, the adjustment shaft 61 and the socket 21 maintain plug-in matching. When the first locking member is inserted into the unlocking hole 612, the adjustment shaft 61 and the socket 21 avoid matching. The first locking member is added, which can be inserted into the locking hole 611 or the unlocking hole 612 on the adjustment shaft 61, so as to realize the control of the state of the adjustment shaft 61. When the first locking member is inserted into the locking hole 611, the adjustment shaft 61 is fixed, preventing it from moving in the floating direction, ensuring that the osteotomy tool will not accidentally change the state of the adjustment shaft 61 during the correction process, thereby keeping the relative position set between the first connecting plate 10 and the second connecting plate 50 unchanged. The provision of the unlocking hole 612 allows the state of the adjusting shaft 61 to be adjusted when necessary, thereby improving the flexibility and adaptability of the osteotomy tool.

[0042] like Figures 1 to 8 As shown, the first locking member includes a mounting shaft 22 rotatably disposed on the housing 20 and a locking rod 23 telescopically disposed on the mounting shaft 22, and the distances between the multiple plug holes 21 and the axis of the mounting shaft 22 are all equal. The rotation direction of the mounting shaft 22 matches the distribution direction of the multiple plug holes 21, which is convenient for the rapid positioning and locking of the adjustment shaft 61 and improves the operation efficiency. The mounting shaft 22 and the locking rod 23 have a simple structure, are easy to process, and are also convenient for fixing and releasing the adjustment shaft 61. The distances between the multiple plug holes 21 and the axis of the mounting shaft 22 are all equal, so that the multiple plug holes 21 can be spaced apart on an arc centered on the axis of the mounting shaft 22.

[0043] In this embodiment, the connecting shaft 62 is rotatably connected to the connecting rod 63 via a bearing, the connecting shaft 62 is rotatably disposed on the slider 30 , and the connecting rod 63 is hinged to the adjusting shaft 61 .

[0044] like Figures 1 to 8 As shown, the first locking member also includes a first elastic member 24 connected between the mounting shaft 22 and the locking rod 23, and the first elastic member 24 applies a first elastic force to the locking rod 23 so that the locking rod 23 can maintain a plug-in fit with the locking hole 611 or the unlocking hole 612. An operating protrusion is provided on the locking rod 23. The first locking member includes the mounting shaft 22 and the locking rod 23, and an elastic force can be applied to the locking rod 23 by the first elastic member 24 to ensure that the locking rod 23 can maintain a stable plug-in fit with the locking hole 611 or the unlocking hole 612. The operating protrusion on the locking rod 23 facilitates manual operation by the user, reducing the difficulty and time of operation.

[0045] In other embodiments, the first locking member further includes a first elastic member 24 connected between the mounting shaft 22 and the locking rod 23, and the first elastic member 24 applies a first elastic force to the locking rod 23 so that the locking rod 23 can maintain plug-in fit with the locking hole 611 or the unlocking hole 612. Alternatively, an operating protrusion is provided on the locking rod 23.

[0046] like Figures 1 to 8 As shown, the osteotomy tool also includes a second elastic member 71 disposed between the adjustment shaft 61 and the connecting rod 63. The second elastic member 71 is sleeved on the adjustment shaft 61 and applies a second elastic force to the adjustment shaft 61 so that the adjustment shaft 61 and the socket 21 can maintain plug-in fit. The second elastic member 71 is provided to further enhance the stability between the adjustment shaft 61 and the socket 21. Even if the adjustment shaft 61 is disturbed by external forces during the correction operation, the adjustment shaft 61 can remain in the socket 21, thereby ensuring the accuracy of the correction effect. The elastic force of the second elastic member 71 makes the plug-in between the adjustment shaft 61 and the socket 21 tighter, reduces the position deviation of the adjustment shaft 61 caused by mechanical wear or improper operation, and improves the durability and reliability of the osteotomy tool.

[0047] like Figures 1 to 8As shown, the osteotomy tool also includes a second locking member arranged on the slider 30 and an adjusting wheel 41 fixedly arranged on the adjusting block 40, and the second locking member has a locked state and an unlocked state. When the second locking member is in the locked state, the second locking member and the adjusting wheel 41 are locked and matched to fix the angle between the slider 30 and the adjusting block 40. When the second locking member is in the unlocked state, the second locking member and the adjusting wheel 41 are avoided and matched to make the angle between the slider 30 and the adjusting block 40 adjustable. The addition of the second locking member and the adjusting wheel 41 makes the relative angle between the slider 30 and the adjusting block 40 adjustable and lockable. When the second locking member is in the locked state, the adjusting wheel 41 is restricted, ensuring that the angle between the first connecting plate 10 and the second connecting plate 50 is fixed, thereby ensuring that the relative position of the two sections of osteotomy remains fixed during the correction process. When the second locking member is in the unlocked state, the adjusting wheel 41 can rotate freely, which is convenient for adjusting the angle between the two sections of osteotomy as needed, thereby improving the versatility and operational flexibility of the osteotomy tool.

[0048] like Figures 1 to 8 As shown, the second locking member includes a lock shell 31 arranged on the slider 30 and a limit member 32 movably arranged on the lock shell 31. The limit member 32 moves to cooperate with the adjusting wheel 41 in a limited position or an evasive position. When the limit member 32 cooperates with the adjusting wheel 41 in a limited position, the second locking member is in a locked state. When the limit member 32 cooperates with the adjusting wheel 41 in an evasive position, the second locking member is in an unlocked state. The adjusting wheel 41 is a first gear. When the limit member 32 cooperates with the adjusting wheel 41 in a limited position, the limit member 32 is inserted into the tooth groove of the first gear. The limit member 32 cooperates with the tooth groove of the first gear to form a stable mechanical lock, ensuring that the angle of the second locking member is fixed in the locked state. This cooperation mode between the limit member 32 and the tooth groove is more stable and not easy to loosen due to wear or force during operation, thereby improving the accuracy and reliability of the osteotomy tool in the orthopedic operation.

[0049] like Figures 1 to 8 As shown, the stopper 32 is provided with a rack portion 33, and the second locking member further includes a second gear 34 rotatably provided in the lock housing 31, the second gear 34 is meshed with the rack portion 33, and the second gear 34 rotates to drive the stopper 32 to move. The arrangement of the second gear 34 and the rack portion 33 makes the transmission more stable. The operator can drive the stopper 32 to move through the rack portion 33 by driving the second gear 34 to rotate, so as to control the fixing or rotation of the adjusting wheel 41 relative to the slider 30.

[0050] like Figures 1 to 8As shown, the second locking member also includes a third gear 35 rotatably arranged on the lock housing 31, and the lock housing 31 is provided with an avoidance hole, and the third gear 35 meshes with the second gear 34 and passes through the avoidance hole to the outside of the lock housing 31. The osteotomy tool also includes a third locking member arranged on the lock housing 31, and the third locking member includes a mounting block 81, a third elastic member 82 and an abutment member 83. The mounting block 81 is fixedly arranged on the lock housing 31, and the third elastic member 82 is connected between the mounting block 81 and the abutment member 83. The abutment member 83 has an abutment position that abuts with the third gear 35 and stops rotation, and an avoidance position that avoids the third gear 35. The third elastic member 82 applies a third elastic force to the abutment member 83 so that the abutment member 83 can remain in the abutment position. The arrangement of the third gear 35 and the third locking member increases the control of the rotation state of the second gear 34. The meshing of the third gear 35 with the second gear 34 and the anti-rotation cooperation between the abutment member 83 of the third locking member and the third gear 35 prevent the second gear 34 from rotating unexpectedly during the correction process, thereby ensuring the fixed position of the limit member 32. This three-level locking mechanism ensures the accuracy of the correction operation, and is easy to operate when adjustments are required, thereby improving the efficiency and safety of the operation.

[0051] like Figures 1 to 8 As shown, a pin hole and a pin shaft 42 rotatably arranged in the pin hole are provided between the slider 30 and the adjusting block 40. The pin hole is provided on the slider 30, and the pin shaft 42 is provided on the adjusting block 40. The slider 30 and the adjusting block 40 are connected by the pin hole and the pin shaft 42, so that the relative rotation and angle adjustment between the two components are realized. The free rotation of the pin shaft 42 in the pin hole ensures the stability of the angle adjustment between the first connecting plate 10 and the second connecting plate 50. This structure is simple, easy to implement, reduces the manufacturing cost, and is also convenient for users to operate.

[0052] In other embodiments, the pin 42 is disposed on the slider 30 , and the hole is disposed on the adjustment block 40 .

[0053] In this embodiment, there are multiple first connecting plates 10 and multiple second connecting plates 50. The curvature and size of the first bone connecting parts of the multiple first connecting plates 10 are different, and the curvature and size of the second bone connecting parts of the multiple second connecting plates 50 are different. One of the multiple first connecting plates 10 can be selectively fixedly connected to the shell 20, and one of the multiple second connecting plates 50 can be selectively fixedly connected to the slider 30. In this way, the osteotomy tool can select different first connecting plates 10 and second connecting plates 50 for connection according to the conditions of the autologous bones of different patients, avoiding the replacement of the shell 20 and the slider 30, etc., improving the adaptability and utilization rate of the osteotomy tool, and reducing the use cost of the osteotomy tool.

[0054] This embodiment not only realizes the high flexibility and precise control of the osteotomy tool during the correction process through the setting of the connecting rod mechanism 60, the design of multiple jacks 21, the coordinated use of the first locking member, the second elastic member 71, the second locking member and the third locking member, but also ensures the accuracy and stability of the operation through the multi-stage locking mechanism. The connection mode of the pin hole and the pin shaft 42, as well as the coordination of the gear and the rack, further optimizes the operation of angle adjustment and fixation, and improves the overall performance and user-friendliness of the osteotomy tool. In summary, the present invention effectively solves the problem of complex operation of traditional osteotomy tools.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0056] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0057] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An osteotomy tool, characterized in that: include: A first connecting plate (10) having a first bone connecting portion; A housing (20) fixedly connected to the first connecting plate (10); A slider (30) movably disposed in the housing (20); An adjusting block (40) connected to the sliding block (30) in an angle-adjustable manner; A second connecting plate (50) having a second bone connecting portion, wherein the second connecting plate (50) is fixedly connected to the adjusting block (40); A connecting rod mechanism (60) connected between the housing (20) and the slider (30); The connecting rod mechanism (60) comprises an adjusting shaft (61) which is adjustably arranged on the housing (20), a connecting shaft (62) which is arranged on the slider (30), and a connecting rod (63) connected between the connecting shaft (62) and the adjusting shaft (61); when the adjusting shaft (61) is adjusted in position on the housing (20), the adjusting shaft (61) drives the connecting shaft (62) to move via the connecting rod (63), so that the slider (30) can move in the housing (20).

2. The osteotomy tool according to claim 1, characterized in that: The housing (20) is provided with a plurality of insertion holes (21) arranged at intervals, and the adjustment shaft (61) can be selectively inserted into one of the insertion holes (21) among the plurality of insertion holes (21). When the adjustment shaft (61) is plugged into and matched with the insertion hole (21), the slider (30) is fixedly arranged in the housing (20).

3. The osteotomy tool according to claim 2, characterized in that: The osteotomy tool further comprises a first locking member arranged on the housing (20); the adjustment shaft (61) is connected to the connecting rod (63) in a floating manner; the adjustment shaft (61) is provided with a locking hole (611) and an unlocking hole (612) arranged at intervals along a floating direction of the adjustment shaft (61); When the first locking piece is inserted into the locking hole (611), the adjustment shaft (61) and the insertion hole (21) maintain a plug-in fit; when the first locking piece is inserted into the unlocking hole (612), the adjustment shaft (61) and the insertion hole (21) maintain an avoidance fit.

4. The osteotomy tool according to claim 3, characterized in that: The first locking member comprises a mounting shaft (22) rotatably arranged on the housing (20) and a locking rod (23) telescopically arranged on the mounting shaft (22), and the distances between the plurality of insertion holes (21) and the axis of the mounting shaft (22) are all equal.

5. The osteotomy tool according to claim 4, characterized in that: The first locking member further comprises a first elastic member (24) connected between the mounting shaft (22) and the locking rod (23), the first elastic member (24) applying a first elastic force to the locking rod (23) so that the locking rod (23) can maintain plug-in fit with the locking hole (611) or the unlocking hole (612); and / or, An operating protrusion is provided on the locking rod (23).

6. The osteotomy tool according to claim 2, characterized in that: The osteotomy tool further comprises a second elastic member (71) arranged between the adjustment shaft (61) and the connecting rod (63); the second elastic member (71) is sleeved on the adjustment shaft (61) and applies a second elastic force to the adjustment shaft (61) so that the adjustment shaft (61) and the socket (21) can maintain plug-in fit.

7. The osteotomy tool according to claim 1, characterized in that: The osteotomy tool further comprises a second locking member arranged on the sliding block (30) and an adjusting wheel (41) fixedly arranged on the adjusting block (40), wherein the second locking member has a locked state and an unlocked state; When the second locking member is in the locked state, the second locking member and the adjusting wheel (41) are locked together so that the angle between the slider (30) and the adjusting block (40) is fixed; when the second locking member is in the unlocked state, the second locking member and the adjusting wheel (41) are avoided and matched so that the angle between the slider (30) and the adjusting block (40) is adjustable.

8. The osteotomy tool according to claim 7, characterized in that: The second locking member comprises a lock housing (31) arranged on the slider (30) and a limiting member (32) movably arranged on the lock housing (31); the limiting member (32) moves to engage in limiting or avoiding cooperation with the adjusting wheel (41); when the limiting member (32) engages in limiting cooperation with the adjusting wheel (41), the second locking member is in the locked state; when the limiting member (32) engages in avoiding cooperation with the adjusting wheel (41), the second locking member is in the unlocked state; The regulating wheel (41) is a first gear, and when the limiting member (32) and the regulating wheel (41) are in limiting cooperation, the limiting member (32) is inserted into the tooth groove of the first gear.

9. The osteotomy tool according to claim 8, characterized in that: The limiting member (32) is provided with a rack portion (33), and the second locking member further comprises a second gear (34) rotatably arranged in the lock housing (31), the second gear (34) being meshed with the rack portion (33), and the second gear (34) is rotated to drive the limiting member (32) to move.

10. The osteotomy tool according to claim 9, characterized in that: The second locking member further comprises a third gear (35) rotatably arranged on the lock housing (31); a clearance hole is arranged on the lock housing (31); the third gear (35) meshes with the second gear (34) and passes through the clearance hole to the outside of the lock housing (31); The osteotomy tool also includes a third locking member arranged on the lock shell (31), the third locking member including a mounting block (81), a third elastic member (82) and an abutment member (83), the mounting block (81) being fixedly arranged on the lock shell (31), the third elastic member (82) being connected between the mounting block (81) and the abutment member (83), the abutment member (83) having an abutment position abutting against the third gear (35) and engaging in a rotation-stopping manner and an avoidance position abutting against the third gear (35), the third elastic member (82) applying a third elastic force to the abutment member (83) so that the abutment member (83) can be maintained at the abutment position.

11. The osteotomy tool according to claim 1, characterized in that: A pin hole and a pin shaft (42) rotatably arranged in the pin hole are arranged between the slider (30) and the adjusting block (40); the pin hole is arranged on one of the slider (30) and the adjusting block (40); and the pin shaft (42) is arranged on the other of the slider (30) and the adjusting block (40).

Images