Adjustable unicondylar tibia osteotomy guide device

Abstract

The utility model provides an adjustable unicompartmental tibia osteotomy guiding device. The adjustable unicompartmental tibia osteotomy guiding device comprises a guiding assembly, an adjusting assembly and a calibration rod. The adjusting assembly is provided with a bearing part, a rotary adjusting part and a vertical adjusting part; the guide assembly is fixedly connected with the first end of the vertical adjusting part, and when the second end of the vertical adjusting part is located at the first position of the rotary adjusting part, the guide assembly is provided with an initial osteotomy surface; when the rotating adjusting part is rotated, the second end of the vertical adjusting part can move in the second direction, so that the guiding assembly is provided with a calibrated osteotomy surface, and a first preset angle is formed between the calibrated osteotomy surface and the initial osteotomy surface. The second end of the vertical adjusting part can be driven to move in the second direction by rotating the rotating adjusting part, and when the second end of the vertical adjusting part moves in the second direction, the guide assembly can have a calibrated osteotomy surface forming a first preset angle with the initial osteotomy surface. Inversion type osteotomy can be finally realized according to osteotomy of the calibrated osteotomy surface, so that excessive osteotomy can be prevented, and the osteotomy effect is improved to a certain extent.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to an adjustable unicondylar tibial osteotomy guiding device. Background Art

[0002] The unicondylar tibial osteotomy guiding and fixing frame is essential in osteotomy surgery; currently, the existing unicondylar tibial osteotomy guiding and fixing frame includes a calibration rod and an osteotomy guiding assembly vertically arranged at one end of the calibration rod; during actual use, first, the calibration rod is parallel to the central axis of the leg, and the saw blade is installed on the osteotomy guiding assembly; then the saw blade performs osteotomy in the direction from the knee to the popliteal fossa in a swinging manner (the swinging direction is from the inner side of the leg to the outer side of the leg) to form an osteotomy surface.

[0003] However, the current structure cannot achieve varus osteotomy, resulting in excessive osteotomy and unsatisfactory osteotomy in the end.

[0004] Therefore, there is an urgent need for an adjustable unicondylar tibial osteotomy guiding device to solve the technical problems existing in the prior art to a certain extent. Utility Model Content

[0005] The purpose of this application is to provide an adjustable unicondylar tibial osteotomy guiding device, which can solve the technical problems of excessive osteotomy and unsatisfactory osteotomy effect caused by the existing above-mentioned structure to a certain extent.

[0006] An adjustable unicondylar tibial osteotomy guiding device of this application includes a guiding assembly, an adjusting assembly, and a calibration rod;

[0007] The adjusting assembly is arranged at one end of the calibration rod;

[0008] The adjusting assembly has a supporting part, a rotational adjusting part, and a vertical adjusting part; a first rotational supporting area and a second rotational supporting area are formed at intervals along a first direction on the supporting part;

[0009] The rotational adjusting part is rotatably arranged in the first rotational supporting area;

[0010] The first end of the vertical adjusting part is rotatably arranged in the second rotational supporting area, and the second end of the vertical adjusting part is connected to the rotational adjusting part;

[0011] The guiding assembly is fixedly connected to the first end of the vertical adjusting part. When the second end of the vertical adjusting part is at the first position of the rotational adjusting part, the guiding assembly has a preliminary osteotomy surface; when the rotational adjusting part is rotated, the second end of the vertical adjusting part can move along a second direction, so that the guiding assembly has a calibrated osteotomy surface at a first preset angle with the preliminary osteotomy surface.

[0012] In the above technical solution, further, the supporting part includes a fixing plate, and the vertical adjustment part includes a rotating block, a rotating arm connected to the rotating block, and a column connected to the rotating arm; the rotation adjustment part includes an adjustment disc;

[0013] The adjustment disc is rotatably arranged in the first rotation supporting area of the fixing plate, and a guiding groove with a preset radian is arranged on the adjustment disc;

[0014] The rotating block is rotatably arranged in the second rotation supporting area of the fixing plate. One end of the rotating arm is fixedly connected to the rotating block, and the other end is fixedly connected to the column;

[0015] The column is located in the guiding groove. When the adjustment disc is rotated, the column can move in the guiding groove along the second direction.

[0016] In the above technical solution, further, the rotation adjustment part further includes a rotating shaft and a rotating handle;

[0017] The rotating shaft is arranged at the center of the adjustment disc, and the adjustment disc is arranged in the first rotation supporting area through the rotating shaft;

[0018] The dimension of the rotating shaft in the axial direction is greater than the thickness of the adjustment disc, so that the rotating shaft protrudes from the adjustment disc;

[0019] The rotating handle is arranged on the part where the rotating shaft protrudes from the adjustment disc.

[0020] In the above technical solution, further, the supporting part further includes a fixing shell;

[0021] The fixing shell is fixed to the fixing plate in the first rotation supporting area;

[0022] The fixing shell surrounds a cavity, and the adjustment disc is arranged in the cavity.

[0023] In the above technical solution, further, the circumferential side wall of the adjustment disc is in a wavy shape with first protrusions and depressions arranged alternately;

[0024] The part of the fixing shell corresponding to the rotating arm has an opening, and elastic pieces are arranged at at least part of the edges forming the opening. The elastic pieces protrude towards the adjustment disc with second protrusions;

[0025] The second protrusions can be clamped in the depressions to fix the adjustment disc in a preset state.

[0026] In the above technical solution, further, a rotation scale is arranged on the adjustment disc;

[0027] When the adjusting disk is rotated to the preset rotation scale, the cylinder can move a preset distance along the second direction, so that the initial osteotomy surface can rotate to a second preset angle.

[0028] In the above technical solution, further, the guide assembly includes a guide block and a connecting block;

[0029] The connecting block is vertically connected to one end of the guide block; the connecting block is fixedly connected to the rotating block;

[0030] When the cylinder is located at the first position of the adjusting disk, the guide block has the initial osteotomy surface; when the adjusting disk is rotated, the cylinder can move along the second direction to rotate the rotating block, and when the rotating block rotates, it can drive the connecting block to rotate, so that the guide block has the calibrated osteotomy surface at the first preset angle to the initial osteotomy surface.

[0031] In the above technical solution, further, the connection block is provided with a limiting groove;

[0032] The rotating block is disposed in the limiting groove and is fixedly connected to the limiting groove.

[0033] In the above technical solution, further, the adjustable unicondylar tibial osteotomy guide device also includes a positioning assembly;

[0034] The positioning assembly penetrates the guide block along the height direction of the guide block so that the guide block is fixed to the tibia.

[0035] In the above technical solution, further, a mounting groove is formed on a side of the guide block away from the adjustment assembly, and the mounting groove is used to install the saw blade;

[0036] The mounting groove is in a convex shape, and the mounting groove extends in a direction that forms a third preset angle with the height direction of the guide block.

[0037] Compared with the prior art, this application has the following beneficial effects:

[0038] The present application discloses an adjustable unicompartmental tibial osteotomy guide device, comprising a guide assembly, an adjustment assembly, and a calibration rod;

[0039] The adjustment component is arranged at one end of the calibration rod;

[0040] The adjustment component comprises a supporting portion, a rotational adjustment portion and a vertical adjustment portion; a first rotational supporting area and a second rotational supporting area are formed on the supporting portion along a first direction at intervals;

[0041] The rotation adjustment portion is rotatably disposed in the first rotation supporting area;

[0042] The first end of the vertical adjustment part is rotatably arranged in the second rotation support area, and the second end of the vertical adjustment part is connected to the rotation adjustment part;

[0043] The guiding component is fixedly connected to the first end of the vertical adjustment part. When the second end of the vertical adjustment part is located at the first position of the rotation adjustment part, the guiding component has a preliminary osteotomy surface; when the rotation adjustment part is rotated, the second end of the vertical adjustment part can move along the second direction, so that the guiding component has a calibrated osteotomy surface at a first preset angle with the preliminary osteotomy surface.

[0044] In summary, by rotating the rotation adjustment part, the second end of the vertical adjustment part can be driven to move in the second direction. When the second end of the vertical adjustment part moves in the second direction, the guiding component can be made to have a calibrated osteotomy surface at a first preset angle with the preliminary osteotomy surface. Osteotomy according to the calibrated osteotomy surface can finally achieve varus osteotomy, thereby preventing excessive osteotomy and improving the osteotomy effect to a certain extent. Description of the Drawings

[0045] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0046] Figure 1 It is a schematic structural diagram of the adjustable unicompartmental tibial osteotomy guiding device provided by the present application from the first perspective;

[0047] Figure 2 It is Figure 1 an enlarged view of part A in

[0048] Figure 3 It is a schematic structural diagram of the adjustable unicompartmental tibial osteotomy guiding device provided by the present application from the second perspective;

[0049] Figure 4 It is Figure 3 an enlarged view of part B in

[0050] Figure 5 It is a schematic structural diagram of the adjustable unicompartmental tibial osteotomy guiding device provided by the present application with the adjustment disc and the adjustment handle hidden;

[0051] Figure 6 It is Figure 5 an enlarged view of part C in

[0052] Figure 7Schematic diagram of hiding the adjustment disc, adjustment handle and rotating shaft in the adjustable unicondylar tibial osteotomy guiding device provided by the present application and from the second perspective;

[0053] Figure 8 For Figure 7 Enlarged view of part D in;

[0054] Figure 9 Schematic diagram of the guiding component in the adjustable unicondylar tibial osteotomy guiding device provided by the present application;

[0055] Figure 10 Schematic diagram of the adjustment disc in the adjustable unicondylar tibial osteotomy guiding device provided by the present application from the first perspective;

[0056] Figure 11 Schematic diagram of the adjustment disc in the adjustable unicondylar tibial osteotomy guiding device provided by the present application from the second perspective;

[0057] Figure 12 Schematic diagram of the adjustment disc in the adjustable unicondylar tibial osteotomy guiding device provided by the present application from the third perspective;

[0058] Figure 13 Schematic diagram of the adjustable unicondylar tibial osteotomy guiding device provided by the present application from the third perspective;

[0059] Figure 14 For Figure 13 Enlarged view of part E in;

[0060] Figure 15 Schematic diagram of the supporting part in the adjustable unicondylar tibial osteotomy guiding device provided by the present application from the first perspective;

[0061] Figure 16 Schematic diagram of the supporting part in the adjustable unicondylar tibial osteotomy guiding device provided by the present application from the second perspective.

[0062] Reference numerals: 1 - guiding component; 2 - adjusting component; 3 - calibration rod; 4 - supporting part; 5 - rotating adjusting part; 6 - vertical adjusting part; 7 - first direction; 8 - first rotating supporting area; 9 - second rotating supporting area; 10 - second direction; 11 - fixing plate; 12 - rotating block; 13 - rotating arm; 14 - column body; 15 - adjusting disc; 16 - guiding groove; 17 - rotating shaft; 18 - rotating handle; 19 - fixing shell; 20 - cavity; 21 - first protrusion; 22 - depression; 23 - opening; 24 - elastic sheet; 25 - second protrusion; 26 - rotating scale; 27 - guiding block; 28 - connecting block; 29 - limiting groove; 30 - positioning hole; 31 - installation groove; 32 - first groove body; 33 - second groove body. Detailed implementation manners

[0063] The following specific embodiments are provided to assist the reader in obtaining a comprehensive understanding of the methods, devices, and / or systems described herein. However, after understanding the disclosure of this application, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, changes that will be apparent after understanding the disclosure of this application may be made, except for operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness. The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, devices, and / or systems described herein that will be apparent after understanding the disclosure of this application. Throughout the specification, when an element (such as a layer, region, or substrate) is described as "on" another element, "connected to" another element, "coupled to" another element, "above" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "coupled to" another element, "above" another element, or "covering" another element, or there may be one or more other elements intervening therebetween. In contrast, when an element is described as "directly on" another element, "directly connected to" another element, "directly coupled to" another element, "directly above" another element, or "directly covering" another element, there may be no other elements intervening therebetween. As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them. Although terms such as "first," "second," and "third" may be used herein to describe various components, elements, regions, layers, or parts, these components, elements, regions, layers, or parts are not limited by these terms. Rather, these terms are only used to distinguish one component, element, region, layer, or part from another. Thus, the first component, element, region, layer, or part referred to in the examples described herein may also be referred to as the second component, element, region, layer, or part without departing from the teachings of the examples. For ease of description, spatial relationship terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another as shown in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to another element.Accordingly, the term "above" includes both the orientations of "above" and "below" depending on the spatial orientation of the device. The device can also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relationship terms used herein will be interpreted accordingly. The terms used herein are only for describing various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including" and "having" enumerate the stated features, quantities, operations, components, elements and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof. Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Accordingly, the examples described herein are not limited to the specific shapes shown in the drawings, but include changes in shape that occur during manufacturing. The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.

[0064] The following will Figures 1 - 16 describe in detail the adjustable unicondylar tibial osteotomy guiding device provided by the present application.

[0065] The present application provides an adjustable unicondylar tibial osteotomy guiding device, which can adjust the angle between the calibrated osteotomy surface and the initially determined osteotomy surface, and thus can achieve varus osteotomy, ensuring that excessive osteotomy will not occur and making the osteotomy effect better. The specific structure of the device will be elaborated in detail below.

[0066] In combination with Figure 3 and Figure 4 as described above, the present application provides an adjustable unicondylar tibial osteotomy guiding device, which includes a guiding assembly 1, an adjusting assembly 2 and a calibration rod 3.

[0067] Specifically, the adjusting assembly 2 is arranged at one end of the calibration rod 3.

[0068] Specifically, the adjusting assembly 2 has a supporting portion 4, a rotational adjusting portion 5 and a vertical adjusting portion 6; a first rotational supporting area 8 and a second rotational supporting area 9 are formed at intervals along a first direction 7 on the supporting portion 4; in combination with Figure 1 and Figure 2 as shown, the first direction 7 refers to the left-right direction, and when the device is placed on the knee, the first direction 7 refers to the direction from the inner side of the leg to the outer side of the leg; in combination with Figure 15 as shown, the first rotational supporting area 8 is located on the left side of the supporting portion 4, and the second rotational supporting area 9 is located on the right side of the supporting portion 4.

[0069] Specifically, in combination withFigure 3 and Figure 4 As shown in Figure 4 , the rotation adjustment part 5 is rotatably arranged in the first rotation support area 8; the first end of the vertical adjustment part 6 is rotatably arranged in the second rotation support area 9, and the second end of the vertical adjustment part 6 is connected to the rotation adjustment part 5.

[0070] Specifically, the guiding component 1 is fixedly connected to the first end of the vertical adjustment part 6. During actual use, when the second end of the vertical adjustment part 6 is at the first position of the rotation adjustment part 5 (as shown in Figure 1 and Figure 2 , the first position here refers to the position of the second end of the vertical adjustment part 6 on the rotation adjustment part 5 when both the vertical adjustment part and the guiding component are perpendicular to the calibration rod), the guiding component 1 has a preliminary osteotomy plane. In actual use, the preliminary osteotomy plane is perpendicular to the leg at this time. In other words, the direction from the knee to the popliteal fossa is perpendicular to the leg; when the rotation adjustment part 5 is rotated, the second end of the vertical adjustment part 6 can move along the second direction 10, so that the guiding component 1 has a calibrated osteotomy plane at a first preset angle with the preliminary osteotomy plane. The second direction 10 here refers to the up-and-down direction in Figure 2 and refers to the thickness direction of the guiding component 1 during actual use. Figure 1 and Figure 2 Taking the clockwise rotation of the rotation adjustment part 5 as an example, when the rotation adjustment part 5 is rotated clockwise, the guiding component 1 can rotate in coordination through the vertical adjustment part 6, so that the guiding component 1 has a calibrated osteotomy plane at a first preset angle with the preliminary osteotomy plane. Osteotomy according to the calibrated osteotomy plane can ultimately achieve varus osteotomy. Figure 2 In Figure 2 , it refers to the up-and-down direction, and in actual use, it refers to the thickness direction of the guiding component 1.

[0071] Preferably, the first preset angle is set between 0° and 10°.

[0072] In summary, by rotating the rotation adjustment part 5, the second end of the vertical adjustment part 6 can be driven to move in the second direction 10. When the second end of the vertical adjustment part 6 moves in the second direction 10, the guiding component 1 can be made to have a calibrated osteotomy plane at a first preset angle with the preliminary osteotomy plane. Osteotomy according to the calibrated osteotomy plane can ultimately achieve varus osteotomy, thereby preventing excessive osteotomy and improving the osteotomy effect to a certain extent.

[0073] In this embodiment, as shown in Figure 5 , Figure 6 , Figure 7 , Figure 8 , the supporting part includes a fixing plate 11, the vertical adjustment part 6 includes a rotating block 12, a rotating arm 13 connected to the rotating block 12, and a column 14 connected to the rotating arm 13; the rotation adjustment part 5 includes an adjustment disc 15.

[0074] Specifically, as shown in Figure 12 Figure 5 , Figure 6 , Figure 7 and Figure 8 shown, the supporting part includes a fixing plate 11, the vertical adjustment part 6 includes a rotating block 12, a rotating arm 13 connected to the rotating block 12, and a column 14 connected to the rotating arm 13; the rotation adjustment part 5 includes an adjustment disc 15.

[0075] Specifically, as shown in Figure 12 Figure 12As shown, the adjusting disk 15 is rotatably arranged in the first rotation supporting area 8 of the fixing plate 11, and a guiding groove 16 with a preset radian is arranged on the adjusting disk 15. Further, the guiding groove 16 is opened on the non-exposed side of the adjusting disk 15.

[0076] Specifically, the rotating block 12 is rotatably arranged in the second rotation supporting area 9 of the fixing plate 11. One end of the rotating arm 13 is fixedly connected to the rotating block 12 and the other end is fixedly connected to the column body 14.

[0077] Specifically, the column body 14 is located in the guiding groove 16. When the adjusting disk 15 rotates, the column body 14 can move along the second direction 10 in the guiding groove 16.

[0078] In summary, by using the arc-shaped guiding groove 16, the rotational movement of the adjusting disk 15 can be converted into the linear movement of the rotating arm 13, and then the guiding assembly 1 can be adjusted so that the guiding assembly 1 has a calibrated osteotomy surface at a first preset angle with the initial osteotomy surface. Taking the clockwise rotation of the rotating adjustment part 5 as an example, when the rotating adjustment part 5 is rotated clockwise, the second end of the vertical adjustment part 6 will move upward (moving upward means moving upward in the direction shown in Figure 2 ), and then the end of the guiding assembly 1 close to the rotating adjustment part 5 will also move upward accordingly. Finally, the guiding assembly 1 will be lower on the left and higher on the right (lower on the left and higher on the right means from the placement perspective shown in Figure 2 ). Such a guiding assembly 1 with lower left and higher right will finally form a calibrated osteotomy surface at a first preset angle with the initial osteotomy surface. Osteotomy according to the calibrated osteotomy surface can ultimately achieve varus osteotomy.

[0079] In this embodiment, further, as shown in combination with Figure 2 and Figure 10 , the rotating adjustment part 5 further includes a rotating shaft 17 and a rotating handle 18.

[0080] Specifically, a rotating shaft 17 is arranged at the center of the adjusting disk 15, and the adjusting disk 15 is arranged in the first rotation supporting area 8 through the rotating shaft 17.

[0081] Specifically, the dimension (i.e., length) in the axial direction of the rotating shaft 17 is greater than the thickness of the adjusting disk 15, that is, the rotating shaft 17 protrudes from the adjusting disk 15, and the rotating handle 18 is exactly arranged on the part where the rotating shaft 17 protrudes from the adjusting disk 15.

[0082] Further, the rotating shaft 17 is fixedly connected to the adjusting disk 15, and the rotating handle 18 is also fixedly connected to the adjusting disk 15.

[0083] In summary, during the actual use process, driving the rotating handle 18 can drive the rotation of the rotating shaft 17, and the rotating rotating shaft 17 can drive the rotation of the adjusting disk 15.

[0084] In this embodiment, in combination with Figure 15 as shown, the supporting part further includes a fixing shell 19.

[0085] Specifically, referring again to Figure 13 and Figure 14 as shown, the fixing shell 19 is fixed to the fixing plate 11 in the first rotation supporting area 8; a cavity 20 is surrounded by the fixing shell 19, and the adjusting disc 15 is rotatably arranged in the cavity 20.

[0086] In summary, the fixing shell 19 can play a role in supporting the adjusting disc 15 to a certain extent, and can also prevent the adjusting disc 15 from accidentally injuring the surrounding ligaments or other soft tissues during rotation.

[0087] In this embodiment, in combination with Figure 11 as shown, the circumferential side wall of the adjusting disc 15 is in a wavy shape with the first protrusions 21 and the depressions 22 arranged alternately.

[0088] Specifically, the part of the fixing shell 19 corresponding to the rotating arm 13 has an opening 23, and elastic pieces 24 are arranged at at least part of the edges forming the opening 23, and the elastic pieces 24 protrude towards the adjusting disc 15 with second protrusions 25.

[0089] Furthermore, the second protrusions 25 can be clamped in the depressions 22 to fix the adjusting disc 15 in a preset state.

[0090] In the actual use process, when the adjusting disc 15 is rotated to the preset state, it is necessary to position the adjusting disc 15 at this position. In this embodiment, the circumferential side wall of the adjusting disc 15 is set to be wavy, and the elastic pieces 24 protrude towards the adjusting disc 15 with second protrusions 25, and the second protrusions 25 can just limit the depressions 22 on the adjusting disc 15, so that the adjusting disc 15 can be in a certain preset state.

[0091] In this embodiment, in combination with Figure 10 as shown, a rotation scale 26 is arranged on the adjusting disc 15; the rotation scale 26 is composed of 1 - 10.

[0092] Specifically, when the adjusting disc 15 rotates a preset rotation scale 26, the column 14 can move a preset distance along the second direction 10, so that the preliminary osteotomy surface can rotate a second preset angle.

[0093] Assume that when the column 14 is at the position where the rotation scale is Figure 11 3 in the rotation scale 26, the rotating arm 13 and the guiding component 1 are both perpendicular to the calibration rod 3 (at this time, the guiding component 1 has a preliminary osteotomy surface), then when the adjusting disc 15 rotates clockwise, the rotation scale 26 changes from Figure 11When the number 3 on the rotating scale changes to the number 2, the cylinder 14 can move 0.1 cm in the upward direction. At this time, the second end of the rotating arm 13 will rotate 3.3°. Since the rotating arm 13 is connected to the guiding assembly 1 through the rotating block 12, one end of the guiding assembly 1 away from the adjusting disc 15 will also rotate 3.3°. As a result, the guiding assembly 1 will be lower on the left and higher on the right, forming a calibrated osteotomy plane that is 3.3° with the initially determined osteotomy plane.

[0094] If you want the guiding assembly 1 to have a calibrated osteotomy plane that is 6.6° with the initially determined osteotomy plane, you can continue to rotate the adjusting disc clockwise so that the rotating scale 26 changes from the number 2 to the number 1. If you want the guiding assembly 1 to have a calibrated osteotomy plane that is 9.9° with the initially determined osteotomy plane, you can continue to rotate the adjusting plate clockwise so that the rotating scale 26 changes from the number 1 to the number 0.

[0095] In this embodiment, in combination with Figure 9 as shown, the guiding assembly 1 includes a guiding block 27 and a connecting block 28.

[0096] Specifically, the connecting block 28 is vertically connected to one end of the guiding block 27; the connecting block 28 is fixedly connected to the rotating block 12; when the cylinder 14 is in the first position of the adjusting disc 15, the guiding block 27 has an initially determined osteotomy plane; when the adjusting disc 15 is rotated, the cylinder 14 can move along the second direction 10 to make the rotating block 12 rotate. When the rotating block 12 rotates, it can drive the connecting block 28 to rotate so that the guiding block 27 has a calibrated osteotomy plane that is at the first preset angle with the initially determined osteotomy plane.

[0097] In this embodiment, further, in combination with Figure 9 as shown, the connecting block 28 is provided with a limiting groove 29; the rotating block 12 is arranged in the limiting groove 29 and fixedly connected to the limiting groove 29.

[0098] In this embodiment, in combination with Figure 9 as shown, the unicondylar tibial osteotomy guiding and fixing frame further includes a positioning assembly; the positioning assembly penetrates through the guiding block 27 along the height direction of the guiding block 27 to fix the guiding block 27 to the tibia.

[0099] Specifically, the positioning assembly includes a positioning pin; the guiding block 27 has a cylindrical positioning hole 30 that penetrates along the height direction of the guiding block 27. The cross-sectional diameter of the cylindrical positioning hole 30 is smaller than the cross-sectional diameter of the positioning pin, so that the positioning pin passes through the positioning hole 30 in an interference fit manner and is inserted into the tibia. This way of passing through the positioning hole 30 in an interference fit can ensure the firmness of the positioning pin, and further ensure that the guiding block 27 can be firmly fixed on the tibia.

[0100] Further, during actual use, a limiting hole is first formed at the position on the tibia corresponding to the positioning pin, then the guiding block 27 is placed on the tibia, and finally the positioning pin is sequentially passed through the positioning hole 30 and the limiting hole.

[0101] Furthermore, three positioning holes 30 are provided, and the three positioning holes 30 are spaced apart. When the positioning pin passes through the positioning holes 30, the left - right balance fixation of the guiding block 27 is ensured.

[0102] In this embodiment, as shown in Figure 9 figure, an installation groove 31 is formed on the side of the guiding block 27 facing away from the calibration assembly, and the installation groove 31 is used for installing a saw blade.

[0103] Specifically, as shown in Figure 9 figure, the installation groove 31 is in a convex shape, and the installation groove 31 extends along a direction forming a third preset angle γ with the height direction of the guiding block 27.

[0104] Further, the installation groove 31 includes a first groove body 32 and a second groove body 33 connected to the first groove body 32; the first groove body 32 is arranged above the second groove body 33, and the width of the first groove body 32 is smaller than the width of the second groove body 33, so that the installation groove 31 is in a convex shape.

[0105] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An adjustable unicondylar tibial osteotomy guiding device, characterized in that, It includes a guiding component, an adjusting component, and a calibration rod; The adjusting component is arranged at one end of the calibration rod; The adjusting component has a supporting portion, a rotational adjusting portion, and a vertical adjusting portion; on the supporting portion, a first rotational supporting area and a second rotational supporting area are formed at intervals along a first direction; The rotational adjusting portion is rotatably arranged in the first rotational supporting area; The first end of the vertical adjusting portion is rotatably arranged in the second rotational supporting area, and the second end of the vertical adjusting portion is connected to the rotational adjusting portion; The guiding component is fixedly connected to the first end of the vertical adjusting portion. When the second end of the vertical adjusting portion is at a first position of the rotational adjusting portion, the guiding component has a preliminary osteotomy plane. When the rotational adjusting portion is rotated, the second end of the vertical adjusting portion can move along a second direction, so that the guiding component has a calibrated osteotomy plane at a first preset angle with the preliminary osteotomy plane.

2. The adjustable unicondylar tibial osteotomy guiding device according to claim 1, wherein The supporting portion includes a fixing plate, and the vertical adjusting portion includes a rotating block, a rotating arm connected to the rotating block, and a column body connected to the rotating arm; the rotational adjusting portion includes an adjusting disc; The adjusting disc is rotatably arranged in the first rotational supporting area of the fixing plate, and a guiding groove with a preset radian is arranged on the adjusting disc; The rotating block is rotatably arranged in the second rotational supporting area of the fixing plate. One end of the rotating arm is fixedly connected to the rotating block and the other end is fixedly connected to the column body; The column body is located in the guiding groove. When the adjusting disc is rotated, the column body can move along the second direction in the guiding groove.

3. The adjustable unicondylar tibial osteotomy guiding device according to claim 2, wherein The rotational adjusting portion further includes a rotating shaft and a rotating handle; The rotating shaft is arranged at the center of the adjusting disc, and the adjusting disc is arranged in the first rotational supporting area through the rotating shaft; The dimension of the rotating shaft in the axial direction is greater than the thickness of the adjusting disc, so that the rotating shaft protrudes from the adjusting disc; The rotating handle is arranged on the part where the rotating shaft protrudes from the adjusting disc.

4. The adjustable unicondylar tibial osteotomy guiding device according to claim 2, wherein, The supporting portion further includes a fixing shell; The fixing shell is fixed to the fixing plate in the first rotational supporting area; The fixing shell surrounds a cavity, and the adjusting disc is arranged in the cavity.

5. The adjustable unicondylar tibial osteotomy guiding device according to claim 4, characterized in that, The circumferential side wall of the adjusting disc is in a wavy shape with first protrusions and depressions arranged alternately; The part of the fixing shell corresponding to the rotating arm has an opening, and elastic pieces are arranged at at least part of the edges forming the opening. The elastic pieces protrude towards the adjusting disc with second protrusions; The second protrusions can be clamped in the depressions to fix the adjusting disc in a preset state.

6. The adjustable unicondylar tibial osteotomy guiding device according to claim 2, characterized in that, A rotational scale is arranged on the adjusting disc; When the adjusting disc rotates by a preset rotational scale, the column body can move a preset distance along the second direction, so that the preliminary osteotomy plane can rotate by a second preset angle.

7. The adjustable unicondylar tibial osteotomy guiding device according to claim 2, wherein, The guiding component includes a guiding block and a connecting block; The connecting block is vertically connected to one end of the guiding block; the connecting block is fixedly connected to the rotating block; When the cylinder is located at the first position of the adjusting disc, the guiding block has the initial osteotomy surface; when the adjusting disc is rotated, the cylinder can move along the second direction to rotate the rotating block, and when the rotating block rotates, it can drive the connecting block to rotate so that the guiding block has the calibrated osteotomy surface at a first preset angle with the initial osteotomy surface.

8. The adjustable unicondylar tibial osteotomy guiding device according to claim 7, wherein, The connecting block is provided with a limiting groove; The rotating block is arranged in the limiting groove and fixedly connected with the limiting groove.

9. The adjustable unicondylar tibial osteotomy guiding device according to claim 7, characterized in that, The adjustable unicondylar tibial osteotomy guiding device further includes a positioning component; The positioning component penetrates through the guiding block along the height direction of the guiding block to fix the guiding block to the tibia.

10. The adjustable unicondylar tibial osteotomy guiding device according to claim 7, wherein, An installation groove is formed on one side of the guiding block facing away from the adjusting component, and the installation groove is used for installing a saw blade; The installation groove is in a convex shape, and the installation groove extends along a direction at a third preset angle with the height direction of the guiding block.

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