Osteotomy guide device

Abstract

The application provides an osteotomy guiding device, comprising a measuring rod with a first measuring scale arranged along the axial direction of the measuring rod; a first clamping structure and a second clamping structure, the second clamping structure being adjustably arranged on the measuring rod; wherein the first clamping structure and the second clamping structure each comprise a fixing column arranged along the vertical direction, and an upper clamping jaw, a lower clamping jaw and a first locking member arranged on the fixing column, the upper clamping jaw and the lower clamping jaw being used for clamping a bone, the upper clamping jaw being movably arranged on the fixing column, the first locking member being used for locking the upper clamping jaw and the lower clamping jaw, a first osteotomy groove being arranged on the upper clamping jaw, a second osteotomy groove being arranged on the lower clamping jaw, and a mounting hole being further arranged on the upper clamping jaw, the measuring rod being arranged in the mounting hole of the first clamping structure and the mounting hole of the second clamping structure. The technical scheme of the application can effectively solve the problem of poor clamping stability of the osteotomy guiding tool in the related art, which leads to uneven osteotomy surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of osteotomy operation auxiliary equipment, in particular to an osteotomy guiding device. BACKGROUND

[0002] In the medical field, some cases often need to be treated by osteotomy. For example, Developmental Dysplasia of the Hip (DDH) is one of the common diseases that need to be treated by osteotomy. The disease is characterized by the loss of the normal relationship between the femoral head and the acetabulum in the joint capsule, resulting in failure to develop normally before and after birth.

[0003] At present, the surgical treatment of DDH usually adopts a posterior approach to treat the rotation and shortening of the femur. Specifically, during the operation, a bone segment is first cut on the femur, then the two segments of the femur after osteotomy are connected, and finally the cut bone segment is divided into two arc-shaped bone pieces along the axial direction, the two arc-shaped bone pieces are wrapped around the joint of the connected femur, and the bone pieces are sutured to firmly wrap around the connected femur.

[0004] The current osteotomy guiding tool is prone to shaking when clamped on the bone, resulting in uneven osteotomy surface, so that when the two segments of the femur are connected, the two osteotomy surfaces are difficult to closely fit, making it difficult for the two segments of the femur to recombine, affecting the postoperative healing efficiency of the patient. SUMMARY

[0005] The main purpose of the present application is to provide an osteotomy guiding device to solve the problem of poor clamping stability of the osteotomy guiding tool in the related art, resulting in uneven osteotomy surface.

[0006] In order to achieve the above purpose, the present application provides an osteotomy guiding device, comprising: a measuring rod having a first measuring scale arranged along the axial direction of the measuring rod; a first clamping structure and a second clamping structure are arranged on the measuring rod, and the second clamping structure is adjustably arranged on the measuring rod; wherein the first clamping structure and the second clamping structure each comprise: a fixed column arranged in a vertical direction, and an upper clamping jaw, a lower clamping jaw and a first locking member arranged on the fixed column, the upper clamping jaw and the lower clamping jaw are used to clamp the bone, the upper clamping jaw is movably arranged on the fixed column, the first locking member is used to lock the upper clamping jaw and the lower clamping jaw, the upper clamping jaw is provided with a first osteotomy groove, the lower clamping jaw is provided with a second osteotomy groove, and the upper clamping jaw is further provided with a mounting hole, and the measuring rod is arranged in the mounting hole of the first clamping structure and the mounting hole of the second clamping structure.

[0007] Further, the lower clamping jaw is fixedly arranged on the fixing column, the upper clamping jaw is provided with a through hole, the through hole is isolated from the mounting hole, and the axis of the through hole intersects the axis of the mounting hole; the upper clamping jaw is sleeved on the fixing column through the through hole; the fixing column is provided with a first external thread; and the first locking member is sleeved on the fixing column and located above the upper clamping jaw, and the first locking member is provided with a first internal thread hole matched with the first external thread.

[0008] Further, the lower clamping jaw comprises a lower fixed plate fixedly connected with the fixing column and a lower clamping plate connected with the lower fixed plate, and the lower clamping plate is provided with a lower clamping groove matched with the bone.

[0009] Further, the upper clamping jaw comprises a mounting block and an upper clamping plate connected with the mounting block; the mounting hole is arranged on the side wall of the mounting block and extends along the width direction of the upper clamping jaw; and the through hole is arranged on the top wall of the mounting hole and extends along the thickness direction of the upper clamping jaw; and the upper clamping plate is provided with an upper clamping groove matched with the bone.

[0010] Further, the side wall of the measuring rod is further provided with a reference line extending along the axial direction of the measuring rod; and the upper surface of the upper clamping jaw of the second clamping structure is further provided with a second measurement scale extending along the length direction of the upper clamping jaw, and the second measurement scale is matched with the reference line for measurement.

[0011] Further, the side wall of the measuring rod is further provided with a reference line extending along the axial direction of the measuring rod; and the upper surface of the upper clamping jaw of the second clamping structure is further provided with a second measurement scale extending along the length direction of the upper clamping jaw, and the second measurement scale is matched with the reference line for measurement.

[0012] Further, the first and second osteotomy grooves are completely overlapped in projection on a horizontal plane, and the first and second osteotomy grooves are straight grooves or broken line grooves.

[0013] Further, the first and second osteotomy grooves are broken line grooves, and the second osteotomy groove comprises a first straight groove segment, a first communication groove segment and a second straight groove segment arranged in sequence from the direction close to the measuring rod to the direction away from the measuring rod, and the first straight groove segment and the second straight groove segment are parallel and arranged in the width direction of the upper clamping jaw.

[0014] Further, the first and second osteotomy grooves are partially overlapped in projection on a horizontal plane.

[0015] Further, the first osteotomy groove comprises a third straight groove segment, a broken line groove segment and a fourth straight groove segment arranged in sequence in a direction from close to the measuring rod to far from the measuring rod, the broken line groove segment comprises a first broken line groove segment connected with the third straight groove segment and a second broken line groove segment connected with the fourth straight groove segment and arranged at an angle with the first broken line groove segment; the second osteotomy groove comprises a fifth straight segment arranged opposite to the third straight groove segment, a sixth straight segment arranged opposite to the fourth straight groove segment and a second connecting groove segment arranged in a staggered manner with the broken line groove segment.

[0016] Further, the osteotomy guiding device further comprises: an elastic member sleeved on the measuring rod and located between the first clamping structure and the second clamping structure, the elastic member can push the second clamping structure away from the first clamping structure under the action of an elastic restoring force; and a second locking member adjustably arranged on the measuring rod and located on a side of the second clamping structure away from the elastic member, the second locking member is in abutting engagement with the second clamping structure.

[0017] Further, the side wall of the measuring rod comprises a planar structure and an arc surface structure connected with the planar structure, the first measuring scale is arranged on the planar structure, the arc surface structure is provided with a second external thread, the first clamping structure is fixedly arranged on the measuring rod, and the second locking member is sleeved on the measuring rod, the second locking member is provided with a second internal thread hole matched with the second external thread.

[0018] Further, the second locking member comprises a locking sleeve and a handle arranged on an outer side wall of the locking sleeve, the second internal thread hole is arranged on the locking sleeve, an end of the locking sleeve facing the second clamping structure is provided with a notch extending in an axial direction of the locking sleeve, and the notch is in communication with the second internal thread hole.

[0019] According to the technical solution of this invention, the osteotomy guide device includes a measuring rod, a first clamping structure, and a second clamping structure. The first and second clamping structures are spaced apart on the measuring rod, which has a first measuring scale along its axial direction. The doctor can determine the distance between the first and second clamping structures through the first measuring scale, thereby achieving precise adjustment of the osteotomy length. Both the first and second clamping structures include a vertically positioned fixing post, an upper clamp, and a lower clamp. The upper and lower clamps together clamp the human bone and can be locked by a first locking element, thus achieving stable clamping of the human bone. Simultaneously, the upper clamp has a first osteotomy groove, and the lower clamp has a second osteotomy groove. During osteotomy, the doctor performs osteotomy along the extending directions of the first and second osteotomy grooves. Specifically, the doctor uses the first and second osteotomy grooves of the first clamping structure to cut the human bone and form a first osteotomy surface. Accordingly, the human bone is cut using the first osteotomy groove of the second clamping structure and the second osteotomy groove of the second clamping structure to form a second osteotomy surface. The first osteotomy surface and the second osteotomy surface are then joined together to complete the osteotomy operation. The above structure uses a method where the osteotomy groove is directly set on the clamping structure. On the one hand, this ensures that both the first and second clamping structures maintain clamping stability during osteotomy, thereby improving the flatness of the first and second osteotomy surfaces. On the other hand, setting the first and second osteotomy grooves on the upper and lower jaws respectively ensures sufficient contact area between the upper and lower jaws and the human bone, further improving the stability of the clamping of the first and second clamping structures, and thus further improving the flatness of the first and second osteotomy surfaces. Therefore, the technical solution of this application effectively solves the problem of poor clamping stability in osteotomy guide tools in related technologies, leading to uneven osteotomy surfaces. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the osteotomy guide device according to the present invention is shown;

[0022] Figure 2 It shows Figure 1 A partial structural diagram of the osteotomy guide device;

[0023] Figure 3 A three-dimensional structural schematic diagram of a second embodiment of the osteotomy guide device according to the present invention is shown;

[0024] Figure 4 It showsFigure 3 Fig. 1 is a perspective view of a bone cutting guide device according to an embodiment of the present application.

[0025] Wherein, the above figures include the following reference signs:

[0026] 10, measuring rod; 11, first measuring scale; 12, reference line; 20, first clamping structure; 21, fixed column; 22, upper clamping jaw; 221, first bone cutting groove; 2211, first straight groove segment; 2212, first connecting groove segment; 2213, second straight groove segment; 2217, third straight groove segment; 2218, zigzag groove segment; 2219, fourth straight groove segment; 223, through hole; 224, mounting block; 2241, mounting hole; 2242, second measuring scale; 225, upper clamping plate; 2251, upper clamping groove; 23, lower clamping jaw; 231, lower fixed plate; 232, lower clamping plate; 233, second bone cutting groove; 2331, fifth straight segment; 2332, sixth straight segment; 2333, second connecting groove segment; 24, first locking member; 30, second clamping structure; 40, elastic member; 50, second locking member; 51, locking sleeve; 52, handle; 53, notch; 60, rotating rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0030] like Figure 1 and Figure 2 As shown, the osteotomy guide device of Embodiment 1 includes: a measuring rod 10, a first clamping structure 20, and a second clamping structure 30. The measuring rod 10 has a first measuring scale 11 arranged along the axial direction of the measuring rod 10; a first clamping structure 20 and a second clamping structure 30 are spaced apart on the measuring rod 10, and the position of the second clamping structure 30 is adjustable on the measuring rod 10; both the first clamping structure 20 and the second clamping structure 30 include: a fixed post 21 arranged in a vertical direction, and an upper clamping jaw 22, a lower clamping jaw 23, and a first locking member 24 arranged on the fixed post 21. The upper clamping jaw 22 and the lower clamping jaw 23 are used to clamp the bone. The upper clamping jaw 22 is movably arranged on the fixed post 21. The first locking member 24 is used to lock the upper clamping jaw 22 and the lower clamping jaw 23. The upper clamping jaw 22 is provided with a first osteotomy groove 221, and the lower clamping jaw 23 is provided with a second osteotomy groove 233. The upper clamping jaw 22 is also provided with a mounting hole 2241. The measuring rod 10 passes through the mounting hole 2241 of the first clamping structure 20 and the mounting hole 2241 of the second clamping structure 30.

[0031] The technical scheme of the embodiment is applied to the osteotomy guiding device which comprises a measuring rod 10, a first clamping structure 20 and a second clamping structure 30. The first clamping structure 20 and the second clamping structure 30 are arranged on the measuring rod 10 at intervals, and the measuring rod 10 is provided with a first measuring scale 11 arranged along the axial direction of the measuring rod 10. A doctor can know the distance between the first clamping structure 20 and the second clamping structure 30 through the first measuring scale 11, so as to realize accurate adjustment of the osteotomy length. The first clamping structure 20 and the second clamping structure 30 each comprise a fixing column 21 arranged in the vertical direction, an upper clamping jaw 22 and a lower clamping jaw 23. The upper clamping jaw 22 and the lower clamping jaw 23 jointly clamp the human bone, and can be locked through a first locking piece 24, so as to realize stable clamping of the human bone. Meanwhile, the upper clamping jaw 22 is provided with a first osteotomy groove 221, and the lower clamping jaw 23 is provided with a second osteotomy groove 233. When osteotomy is performed, the doctor performs osteotomy on the human bone along the extension direction of the first osteotomy groove 221 and the second osteotomy groove 233. Specifically, the doctor performs osteotomy on the human bone through the first osteotomy groove 221 of the first clamping structure 20 and the second osteotomy groove 233 of the first clamping structure 20 to form a first osteotomy surface. Correspondingly, the human bone is cut through the first osteotomy groove 221 of the second clamping structure 30 and the second osteotomy groove 233 of the second clamping structure 30 to form a second osteotomy surface. The first osteotomy surface and the second osteotomy surface are butted to complete the osteotomy operation. The above structure adopts the mode of directly arranging the osteotomy groove on the clamping structure. On the one hand, it can ensure that the first clamping structure 20 and the second clamping structure 30 can remain clamped stably during osteotomy, so as to improve the flatness of the first osteotomy surface and the second osteotomy surface. On the other hand, arranging the first osteotomy groove 221 and the second osteotomy groove 233 on the upper clamping jaw 22 and the lower clamping jaw 23 respectively can also ensure the contact area of the upper clamping jaw 22 and the lower clamping jaw 23 with the human bone, so as to further improve the clamping stability of the first clamping structure 20 and the second clamping structure 30, and further improve the flatness of the first osteotomy surface and the second osteotomy surface. Therefore, the technical scheme of the embodiment effectively solves the problem of poor clamping stability of the osteotomy guiding tool in the related art, which leads to uneven osteotomy surface.

[0032] As Figure 1 and Figure 2As shown, in Embodiment 1, the lower gripper 23 is fixedly mounted on the fixed post 21, and the upper gripper 22 has a through hole 223. The through hole 223 is isolated from the mounting hole 2241, and the axis of the through hole 223 intersects the axis of the mounting hole 2241. The upper gripper 22 is sleeved on the fixed post 21 through the through hole 223. The fixed post 21 has a first external thread, and the first locking member 24 is sleeved on the fixed post 21 and located above the upper gripper 22. The first locking member 24 has a first internal thread hole that mates with the first external thread. In the above structure, the through hole 223 is used to pass through the fixed post 21, and the mounting hole 2241 is used to pass through the measuring rod 10. The above arrangement is simple in structure and optimized in layout. On the one hand, the distance between the first clamping structure 20 and the second clamping structure 30 can be clearly seen through the measuring rod 10. On the other hand, it can also realize the longitudinal adjustment of the upper gripper 22, which is convenient for clamping human bones.

[0033] It should be noted that the aforementioned "intersecting" arrangement refers to the fact that the axis of the through hole 223 and the axis of the mounting hole 2241 are at an angle in space, not parallel. In this embodiment, the axis of the through hole 223 and the axis of the mounting hole 2241 are arranged perpendicularly in space.

[0034] like Figure 1 and Figure 2 As shown, in Embodiment 1, the lower clamp 23 includes a lower fixing plate 231 fixedly connected to the fixing post 21 and a lower clamping plate 232 connected to the lower fixing plate 231. The lower clamping plate 232 is provided with a lower clamping groove that contacts and engages with the bone, and the second osteotomy groove 233 extends along the length of the lower clamping plate 232. In the above structure, the lower fixing plate 231 is used to connect to the fixing post 21, and the lower clamping plate 232 is used to provide the lower clamping groove to facilitate clamping of the human skeleton.

[0035] It should be noted that, in order to improve the fit between the lower splint 232 and the human skeleton, the end of the lower splint 232 away from the lower fixing part is an arc-shaped plate, and correspondingly, the lower clamping groove is also an arc-shaped groove.

[0036] like Figure 1 and Figure 2As shown in the embodiment one, the upper clamping jaw 22 comprises a mounting block 224 and an upper clamping plate 225 connected with the mounting block 224, mounting holes 2241 are arranged on the side wall of the mounting block 224 and extend along the width direction of the upper clamping jaw 22, through holes 223 are arranged on the top wall of the mounting holes 2241 and extend along the thickness direction of the upper clamping jaw 22, and the upper clamping plate 225 is provided with an upper clamping groove 2251 for contacting and cooperating with the bone. In the above structure, the mounting block 224 is used to realize the mounting of the upper clamping jaw 22 and the measuring rod 10 and the movement of the upper clamping jaw 22 in the vertical direction, which is embodied by arranging the through holes 223 and the mounting holes 2241 on the mounting block 224. This arrangement makes the structure of the upper clamping jaw 22 simple and compact.

[0037] As shown in the embodiment one, the upper clamping jaw 22 comprises a mounting block 224 and an upper clamping plate 225 connected with the mounting block 224, mounting holes 2241 are arranged on the side wall of the mounting block 224 and extend along the width direction of the upper clamping jaw 22, through holes 223 are arranged on the top wall of the mounting holes 2241 and extend along the thickness direction of the upper clamping jaw 22, and the upper clamping plate 225 is provided with an upper clamping groove 2251 for contacting and cooperating with the bone. In the above structure, the mounting block 224 is used to realize the mounting of the upper clamping jaw 22 and the measuring rod 10 and the movement of the upper clamping jaw 22 in the vertical direction, which is embodied by arranging the through holes 223 and the mounting holes 2241 on the mounting block 224. This arrangement makes the structure of the upper clamping jaw 22 simple and compact. Figure 1 Figure 2 As shown in the embodiment one, the side wall of the measuring rod 10 is further provided with a reference line 12 extending along the axial direction of the measuring rod 10, and the upper surface of the upper clamping jaw 22 of the second clamping structure 30 is further provided with a second measurement scale 2242 extending along the length direction of the upper clamping jaw 22, and the second measurement scale 2242 cooperates with the reference line 12 for measurement. In the above structure, the patient may have femoral internal rotation (which may be caused by the deformation of the bone due to the "internal eight" feet when the patient walks) or external rotation (which may be caused by the deformation of the bone due to the "external eight" feet when the patient walks) before the operation. In order to solve the problem of internal rotation or external rotation of the patient's bone, the bone cutting guide device of the embodiment also has the function of adjusting the rotation direction of the bone during cutting. Specifically, the doctor installs the first clamping structure 20 and the second clamping structure 30 on the bone, adjusts the distance between the first clamping structure 20 and the second clamping structure 30, and cuts the human bone through the first cutting groove 221 and the second cutting groove 233 on the first clamping structure 20 to form a first cutting surface. Then the doctor adjusts the position of the second clamping structure 30 according to the angle of internal rotation or external rotation of the patient by rotating the second clamping structure 30, and the rotation angle can be indicated by the cooperation of the second measurement scale 2242 and the reference line 12, and after adjusting the angle of the second clamping structure 30, the doctor cuts again to form a second cutting surface, so that when the first cutting surface and the second cutting surface are tightly attached, the rotation direction of the human bone can be corrected.

[0038] It should be noted that if it is necessary to correct the rotation direction of the patient's bone during cutting, at least one of the first cutting groove and the second cutting groove should adopt a broken line groove. In this way, an insertion structure can be formed when the two segments of the bone are connected, so as to reduce the probability of rotation between the two segments of the bone, which helps to improve the correction effect of internal rotation or external rotation.

[0039] Specifically, as shown in the embodiment one, the side wall of the measuring rod 10 is further provided with a reference line 12 extending along the axial direction of the measuring rod 10, and the upper surface of the upper clamping jaw 22 of the second clamping structure 30 is further provided with a second measurement scale 2242 extending along the length direction of the upper clamping jaw 22, and the second measurement scale 2242 cooperates with the reference line 12 for measurement. In the above structure, the patient may have femoral internal rotation (which may be caused by the deformation of the bone due to the "internal eight" feet when the patient walks) or external rotation (which may be caused by the deformation of the bone due to the "external eight" feet when the patient walks) before the operation. In order to solve the problem of internal rotation or external rotation of the patient's bone, the bone cutting guide device of the embodiment also has the function of adjusting the rotation direction of the bone during cutting. Specifically, the doctor installs the first clamping structure 20 and the second clamping structure 30 on the bone, adjusts the distance between the first clamping structure 20 and the second clamping structure 30, and cuts the human bone through the first cutting groove 221 and the second cutting groove 233 on the first clamping structure 20 to form a first cutting surface. Then the doctor adjusts the position of the second clamping structure 30 according to the angle of internal rotation or external rotation of the patient by rotating the second clamping structure 30, and the rotation angle can be indicated by the cooperation of the second measurement scale 2242 and the reference line 12, and after adjusting the angle of the second clamping structure 30, the doctor cuts again to form a second cutting surface, so that when the first cutting surface and the second cutting surface are tightly attached, the rotation direction of the human bone can be corrected. Figure 1 Figure 2 ​​As shown in the first embodiment, the reference line 12 is arranged on the measuring rod 10 along the axial direction of the measuring rod 10, and the mounting block 224 and the upper clamping plate 225 of the upper clamping jaw 22 of the second clamping structure 30 are arranged in a spaced manner in the up-down direction through the arrangement of the excessively inclined section, the upper surface of the mounting block 224 comprises an arc surface which is concentrically arranged with the side wall of the measuring rod 10, and the arc surface is further provided with a second measurement scale 2242 extending along the length direction of the upper clamping jaw 22, which is arranged in measurement cooperation with the reference line 12. The above structure enables the doctor to adjust the position of the second clamping structure 30 according to the angle of internal rotation or external rotation of the patient by rotating the second clamping structure 30, and the concentric arrangement of the arc surface with the side wall of the measuring rod 10 can improve the accuracy of the adjustment of the rotation angle of the second clamping structure 30, thereby helping to improve the correction effect of internal rotation or external rotation.

[0040] As shown in the first embodiment, Figure 1 and Figure 2 the projections of the first osteotomy groove 221 and the second osteotomy groove 233 on the horizontal plane are arranged in complete coincidence, and the first osteotomy groove 221 and the second osteotomy groove 233 are both linear grooves or broken-line grooves. In the above structure, the first osteotomy groove 221 and the second osteotomy groove 233 have the same structure, so that the doctor can simultaneously insert the wire saw into the first osteotomy groove 221 and the second osteotomy groove 233 for osteotomy operation, thereby ensuring the osteotomy efficiency.

[0041] Specifically, as shown in the first embodiment, Figure 1 and Figure 2 the first osteotomy groove 221 and the second osteotomy groove 233 are both broken-line grooves, the second osteotomy groove 233 comprises a first linear groove section 2211, a first communication groove section 2212 and a second linear groove section 2213 arranged in sequence in the direction from close to the measuring rod 10 to far away from the measuring rod 10, and the first linear groove section 2211 and the second linear groove section 2213 are parallel and arranged in a spaced manner in the width direction of the upper clamping jaw 22. The above structure can not only ensure the osteotomy efficiency of the doctor, but also make the osteotomy guiding device of the present embodiment have the function of correcting the internal rotation or external rotation of the patient, thereby improving the functionality of the osteotomy guiding device.

[0042] As shown in the first embodiment, Figure 1 and Figure 2As shown, in Embodiment 1, the osteotomy guide device further includes an elastic element 40 and a second locking element 50. The elastic element 40 is sleeved on the measuring rod 10 and located between the first clamping structure 20 and the second clamping structure 30. Under the action of elastic restoring force, the elastic element 40 can push the second clamping structure 30 away from the first clamping structure 20. The second locking element 50 is adjustablely positioned on the measuring rod 10 and located on the side of the second clamping structure 30 away from the elastic element 40, and the second locking element 50 abuts against the second clamping structure 30. In the above structure, the elastic element 40 is sleeved on the measuring rod 10 and located between the first clamping structure 20 and the second clamping structure 30, and can push the second clamping structure 30 away from the first clamping structure 20. The doctor can adjust the distance between the first clamping structure 20 and the second clamping structure 30 according to the length of the bone segment to be cut. Specifically, when the elastic element 40 is not subjected to external force, it can push the second clamping structure 30 to the end of the measuring rod 10. The doctor needs to adjust the second locking element 50 to move the second clamping structure 30 toward the first clamping structure 20, so as to adjust the distance between the first clamping structure 20 and the second clamping structure 30 to a suitable position. The above structure ensures that the first clamping structure 20 and the second clamping structure 30 can be stably held in a suitable position. On the other hand, after the first osteotomy plane is formed, the first clamping structure 20 and the second clamping structure 30 can be held in a predetermined position under the elastic restoring force of the elastic element 40, so as not to affect the formation of the second osteotomy plane.

[0043] Preferably, the elastic element 40 is a wave spring.

[0044] like Figure 1 and Figure 2 As shown, in Embodiment 1, the sidewall of the measuring rod 10 includes a planar structure and an arcuate surface structure connected to the planar structure. A first measuring scale 11 is disposed on the planar structure, and a second external thread is provided on the arcuate surface structure. A first clamping structure 20 is fixedly disposed on the measuring rod 10, and a second locking member 50 is sleeved on the measuring rod 10. The second locking member 50 has a second internal threaded hole that mates with the second external thread. In the above structure, the planar structure and the arcuate surface structure connected to the planar structure on the sidewall of the measuring rod 10 prevent the first clamping structure 20 and the second clamping structure 30 from rotating on the measuring rod 10, thereby ensuring that the first clamping structure 20 and the second clamping structure 30 are stably positioned in the clamping position. Furthermore, the measuring rod 10 is a threaded rod, and the second locking member 50 has a threaded hole. This fit allows the second locking member 50 to be stably and precisely adjusted on the measuring rod 10, which helps improve the clamping stability of the first clamping structure 20 and the second clamping structure 30.

[0045] It should be noted that in Embodiment 1, the first clamping structure 20 is fixedly set with the measuring rod 10.

[0046] As shown in Figure 1 and Figure 2 , in the first embodiment, the second locking member 50 comprises a locking sleeve 51 and a handle 52 arranged on the outer sidewall of the locking sleeve 51, the second inner threaded hole is arranged on the locking sleeve 51, the locking sleeve 51 is provided with a notch 53 extending along the axial direction of the locking sleeve 51 at one end of the locking sleeve 51, and the notch 53 is in communication with the second inner threaded hole. In the above structure, the doctor can observe the first measurement scale 11 through the notch 53, thereby helping the doctor to know the accurate distance between the first clamping structure 20 and the second clamping structure 30.

[0047] Preferably, the one end of the locking sleeve 51 towards the second clamping structure 30 is contracted towards the axis of the locking sleeve 51, so that the locking sleeve 51 does not affect the measurement cooperation between the second measurement scale 2242 and the reference line 12.

[0048] Specifically, the notch 53 is a plurality of notches, and in the first embodiment, the notch 53 is four notches. Preferably, the included angle between each notch 53 is 90°, and the intersection of the extension lines of the two sides of each notch 53 along the axial direction of the locking sleeve 51 is on the axis of the locking sleeve 51.

[0049] As shown in Figure 1 and Figure 2 , in the first embodiment, the osteotomy guide device further comprises a rotating rod 60, the first locking member 24 is provided with a mounting hole for mounting the rotating rod 60, the rotating rod extends along the radial direction of the first locking member 24, and the doctor can adjust the fastening degree of the first locking member 24 to the upper clamping jaw 22 and the lower clamping jaw 23 by rotating the rotating rod 60.

[0050] As shown in Figure 3 and Figure 4 , the present application further comprises a second embodiment of the osteotomy guide device. The difference between the osteotomy guide device of the second embodiment and the osteotomy guide device of the first embodiment is that the structures of the first osteotomy groove 221 and the second osteotomy groove 233 are different. Specifically, in the second embodiment, the projection parts of the first osteotomy groove 221 and the second osteotomy groove 233 on the horizontal plane are arranged in a partially overlapping manner. The above structure can further improve the treatment effect of the osteotomy surgery. Specifically, the doctor can select the appropriate osteotomy method according to the actual situation of the patient, thereby improving the treatment effect of the osteotomy surgery.

[0051] Specifically, as shown in Figure 3 and Figure 4As shown, in the second implementation, the first osteotomy groove 221 includes a third straight groove segment 2217, a broken line groove segment 2218 and a fourth straight groove segment 2219 arranged in sequence in the direction from the measuring rod 10 to the direction away from the measuring rod 10, the broken line groove segment 2218 includes a first broken line groove segment connected with the third straight groove segment 2217 and a second broken line groove segment connected with the fourth straight groove segment and arranged at an angle with the first broken line groove segment; the second osteotomy groove 233 includes a fifth straight groove segment 2331 arranged opposite to the third straight groove segment 2217, a sixth straight groove segment 2332 arranged opposite to the fourth straight groove segment 2219 and a second connecting groove segment 2333 arranged staggered with the broken line groove segment 2218. The above structure is simple and convenient to process, and enables the osteotomy guiding device of the embodiment to have the function of correcting the internal rotation or external rotation of the patient, thereby improving the functionality of the osteotomy guiding device.

[0052] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0053] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0054] In addition, it should be noted that the use of the words "first", "second" and the like to define parts only facilitates the differentiation of the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore cannot be understood as a limitation on the scope of protection of the present application.

[0055] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. An osteotomy guide device, characterized in that, include: The measuring rod (10) has a first measuring scale (11) set along the axial direction of the measuring rod (10). A first clamping structure (20) and a second clamping structure (30) are spaced apart on the measuring rod (10), and the position of the second clamping structure (30) is adjustable on the measuring rod (10); The first clamping structure (20) and the second clamping structure (30) each include: a fixed post (21) arranged in a vertical direction, an upper clamping jaw (22), a lower clamping jaw (23), and a first locking member (24) arranged on the fixed post (21). The upper clamping jaw (22) and the lower clamping jaw (23) are used to clamp the bone. The upper clamping jaw (22) is movably arranged on the fixed post (21). The first locking member (24) is used to lock the upper clamping jaw (22) and the lower clamping jaw (23). The upper clamping jaw (22) is provided with a first osteotomy groove (221). The lower clamping jaw (23) is provided with a second osteotomy groove (233). The upper clamping jaw (22) is also provided with a mounting hole (2241). The measuring rod (10) passes through the mounting hole (2241) of the first clamping structure (20) and the mounting hole (2241) of the second clamping structure (30). The measuring rod (10) is also provided with a reference line (12) extending along the axial direction of the measuring rod (10) on its side wall. The upper surface of the upper jaw (22) of the second clamping structure (30) is also provided with a second measuring scale (2242) extending along the length direction of the upper jaw (22). The second measuring scale (2242) is in measurement cooperation with the reference line (12).

2. The osteotomy guide device according to claim 1, characterized in that, The lower jaw (23) is fixedly mounted on the fixed post (21). The upper jaw (22) has a through hole (223). The through hole (223) is isolated from the mounting hole (2241), and the axis of the through hole (223) intersects with the axis of the mounting hole (2241). The upper jaw (22) is sleeved on the fixed post (21) through the through hole (223). The fixed post (21) has a first external thread. The first locking member (24) is sleeved on the fixed post (21) and located above the upper jaw (22). The first locking member (24) has a first internal thread hole that cooperates with the first external thread.

3. The osteotomy guide device according to claim 2, characterized in that, The lower clamp (23) includes a lower fixing plate (231) fixedly connected to the fixing post (21) and a lower clamping plate (232) connected to the lower fixing plate (231). The lower clamping plate (232) is provided with a lower clamping groove that contacts and engages with the bone. The second osteotomy groove (233) extends along the length direction of the lower clamping plate (232).

4. The osteotomy guide device according to claim 2, characterized in that, The upper clamp (22) includes a mounting block (224) and an upper clamping plate (225) connected to the mounting block (224). The mounting hole (2241) is provided on the side wall of the mounting block (224) and extends along the width direction of the upper clamp (22). The through hole (223) is provided on the top wall of the mounting hole (2241) and extends along the thickness direction of the upper clamp (22). The upper clamping plate (225) is provided with an upper clamping groove (2251) that contacts and engages with the bone.

5. The osteotomy guide device according to claim 4, characterized in that, The measuring rod (10) is also provided with a reference line (12) extending along the axial direction of the measuring rod (10). An inclined transition section is provided between the mounting block (224) and the upper clamping plate (225) of the upper jaw (22) of the second clamping structure (30) so that the upper clamping plate (225) and the mounting block (224) are spaced apart in the vertical direction. The upper surface of the mounting block (224) includes an arc surface, which is concentrically arranged with the side wall of the measuring rod (10). The arc surface is also provided with a second measuring scale (2242) extending along the length direction of the upper jaw (22). The second measuring scale (2242) is measured and matched with the baseline (12).

6. The osteotomy guide device according to claim 1, characterized in that, The projections of the first osteotomy groove (221) and the second osteotomy groove (233) on the horizontal plane are completely overlapping. Both the first osteotomy groove (221) and the second osteotomy groove (233) are straight grooves or broken grooves.

7. The osteotomy guide device according to claim 6, characterized in that, Both the first osteotomy groove (221) and the second osteotomy groove (233) are zigzag grooves. The second osteotomy groove (233) includes a first straight groove segment (2211), a first connecting groove segment (2212) and a second straight groove segment (2213) arranged sequentially in the direction from near the measuring rod (10) to away from the measuring rod (10). The first straight groove segment (2211) and the second straight groove segment (2213) are parallel and spaced apart in the width direction of the upper jaw (22).

8. The osteotomy guide device according to claim 1, characterized in that, The projection portions of the first osteotomy groove (221) and the second osteotomy groove (233) on the horizontal plane overlap.

9. The osteotomy guide device according to claim 8, characterized in that, The first osteotomy groove (221) includes a third straight groove segment (2217), a zigzag groove segment (2218), and a fourth straight groove segment (2219) arranged sequentially in a direction from near the measuring rod (10) to away from the measuring rod (10). The zigzag groove segment (2218) includes a first zigzag groove segment connected to the third straight groove segment (2217) and a second zigzag groove segment connected to the fourth straight groove segment (2219) and arranged at an angle to the first zigzag groove segment. The second osteotomy groove (233) includes a fifth straight segment (2331) disposed opposite to the third straight groove segment (2217), a sixth straight segment (2332) disposed opposite to the fourth straight groove segment (2219), and a second connecting groove segment (2333) disposed offset from the broken line groove segment (2218).

10. The osteotomy guide device according to claim 1, characterized in that, The osteotomy guide device also includes: An elastic element (40) is sleeved on the measuring rod (10) and located between the first clamping structure (20) and the second clamping structure (30). The elastic element (40) can push the second clamping structure (30) away from the first clamping structure (20) under the action of elastic restoring force. The second locking member (50) is adjustablely positioned on the measuring rod (10) and located on the side of the second clamping structure (30) away from the elastic member (40), and the second locking member (50) abuts against the second clamping structure (30).

11. The osteotomy guide device according to claim 10, characterized in that, The sidewall of the measuring rod (10) includes a planar structure and an arcuate surface structure connected to the planar structure. The first measuring scale (11) is set on the planar structure. The arcuate surface structure is provided with a second external thread. The first clamping structure (20) is fixedly set on the measuring rod (10). The second locking member (50) is sleeved on the measuring rod (10). The second locking member (50) is provided with a second internal thread hole that cooperates with the second external thread.

12. The osteotomy guide device according to claim 11, characterized in that, The second locking member (50) includes a locking sleeve (51) and a handle (52) disposed on the outer side wall of the locking sleeve (51). The second internal thread hole is disposed on the locking sleeve (51). The locking sleeve (51) has a notch (53) extending along the axial direction of the locking sleeve (51) at one end facing the second clamping structure (30). The notch (53) communicates with the second internal thread hole.

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