Osteotomy guiding device

Abstract

The invention discloses an osteotomy guiding device, the osteotomy guiding device is used for guiding osteotomy, the osteotomy guiding device comprises a first guide plate, a second guide plate and a verification positioning piece, the verification positioning piece comprises a verification part and a positioning part, the verification part is connected with the positioning part, the verification part is used for being inserted between two osteotomy bone structures along a first direction, and the verification part is used for being inserted between the two osteotomy bone structures along a second direction. The correction angle after osteotomy is verified; the positioning part is provided with an inner side face extending in the first direction. When the verification part is inserted into the preset position for verification, the inner side face of the positioning part is attached to the outer side faces of the two bone structures after osteotomy. By the adoption of the structural form, the osteotomy precision and the verification precision are improved, the dependence of an osteotomy operation on doctor experience is eliminated, the operation difficulty is reduced, the operation effect is improved, meanwhile, the number of times of fluoroscopy in the osteotomy operation is reduced, radiation in the operation is greatly reduced, the health of doctors and patients is guaranteed, and the operation time is shortened.

Description

Technical Field

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

[0002] The main process of traditional osteotomy is to conduct a medical imaging scan of the patient's target bone tissue before the operation, and then plan and measure based on the medical image. During the operation, the surgeon first visually performs preliminary positioning, and then repeatedly measures and adjusts through means such as perspective and measuring tools to determine the final osteotomy position. Then, the osteotomy operation is performed to determine the cutting depth of the osteotomy knife and complete the osteotomy. Then, the osteotomy area is expanded with a spreader, and the expansion depth is repeatedly adjusted with the help of perspective or measuring tools so that the bone tissue on both sides of the opening reaches a predetermined correction angle. Finally, a fixation plate is used to fix the corrected bone tissue. However, this method relies more on the doctor's clinical practice experience, and the osteotomy accuracy and correction accuracy are low, and it cannot be customized for patients; at the same time, multiple perspective adjustments are required during the operation to determine the position and surgical opening during the osteotomy process, which increases the risk of X-ray exposure for patients and doctors, resulting in longer operation time. The osteotomy guide plate in the prior art can solve the problems of low accuracy and long operation time of traditional osteotomy, but the correction angle calibration is inconvenient and the correction accuracy is not high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an osteotomy guiding device in order to overcome the defect of low correction angle calibration accuracy of the osteotomy guide plate in the prior art.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention discloses an osteotomy guiding device, which is used for guiding osteotomy. The osteotomy guiding device comprises a first guide plate, a second guide plate and a verification positioning piece, the verification positioning piece comprises a verification part and a positioning part, the verification part is connected to the positioning part, the verification part is used to be inserted between two bone structures after osteotomy along a first direction to verify the correction angle after osteotomy; the positioning part has an inner side surface extending along the first direction; when the verification part is inserted into a preset position for verification, the inner side surface of the positioning part fits with the outer side surfaces of the two bone structures after osteotomy.

[0006] In this solution, the first guide plate is connected to the upper bone structure, and the second guide plate is connected to the lower bone structure. After the osteotomy is completed, the first guide plate and the second guide plate are removed, and the verification part is inserted between the two bone structures after the osteotomy along the first direction. After the verification part is inserted a preset distance, the osteotomy correction angle reaches a pre-defined value. In addition, during the insertion of the verification part along the first direction, the inner side of the positioning part fits with the outer side of the two bone structures after the osteotomy, ensuring that the verification part is located in the osteotomy area and close to the edge of the tibia, and realizing accurate positioning of the verification part, thereby ensuring the stability of the verification part and the expansion accuracy of the osteotomy area, so that the verification part has only one unique position after insertion, thereby ensuring that the verification part realizes unique limitation. The above-mentioned structural form improves the osteotomy accuracy and verification accuracy, gets rid of the dependence of osteotomy surgery on the doctor's experience, reduces the difficulty of surgery and improves the surgical effect, and also reduces the number of intraoperative fluoroscopy times of osteotomy surgery, greatly reduces intraoperative radiation, protects the health of doctors and patients, and reduces the operation time.

[0007] Preferably, the verification portion is provided with a guide end and a connecting end at both ends along the first direction, and a verification surface is provided on one side of the verification portion close to the two bone structures after osteotomy, and both ends of the verification surface extend to the guide end and the connecting end respectively, and the positioning portion is arranged on the verification surface.

[0008] In this solution, the above-mentioned structural form is adopted, the guide end is first inserted between the two bone structures after osteotomy, and under the guidance of the calibration surface, the connecting end moves along the first direction toward the direction close to the two bone structures after osteotomy. When the connecting end moves a preset distance, the osteotomy correction angle reaches a pre-defined value. In addition, the positioning part is arranged on the calibration surface, so that when the connecting end moves along the first direction, the positioning part arranged on the calibration surface can fit with the outer side surfaces of the two bone structures after osteotomy, ensuring that the calibration part is located in the osteotomy area and close to the edge of the tibia, and can provide guidance for the movement of the calibration part, so that the calibration part can move in a preset direction, thereby improving the stability and reliability of the movement of the calibration part, thereby realizing accurate positioning of the calibration part, and further improving the insertion accuracy of the calibration part.

[0009] Preferably, the osteotomy guiding device further comprises a limiting portion, the limiting portion is connected to the connecting end, a limiting surface is provided on a side of the limiting portion facing the positioning portion, and the limiting surface is used to abut against the front surfaces of the two bone structures after osteotomy.

[0010] In this solution, the above-mentioned structural form is adopted, and after the verification part is inserted to a preset distance, the limit surface abuts against the front surfaces of the two bone structures after osteotomy, and the osteotomy correction angle at this time reaches a preset value. In other words, when the verification part is inserted to the point where the limit surface abuts against the tibia, the verification part is inserted to a preset distance, so that the osteotomy correction angle reaches a preset value.

[0011] Preferably, the inner side surface of the positioning portion is adjacent to the limiting surface of the limiting portion, and a first groove is formed at the junction of the inner side surface and the limiting surface.

[0012] In this solution, the above-mentioned structural form is adopted, the inner side surface of the positioning part is fitted with the outer side surface of the bone, the limiting surface of the limiting part is fitted with the front surface of the two bone structures after osteotomy, and the outer side surface of the bone and the front surface form a sharp angle. Therefore, the first groove is set at the adjacent part of the inner side surface and the limiting surface, which can make way for the sharp angle formed by the outer side surface and the front surface of the bone, ensuring that the sharp angle can be accommodated by the first groove, preventing the sharp angle from interfering with the limiting surface or the inner side surface, thereby further ensuring the accuracy of verification and positioning.

[0013] Preferably, the guide end is arranged at the front end of the connecting end along the first direction, and the width of the guide end is smaller than the width of the connecting end;

[0014] The guide end is provided with a chamfer.

[0015] In this solution, the above-mentioned structural form is adopted, and the guide end is arranged at the front end of the connecting end along the first direction. In other words, the guide end is inserted between the two bone structures after osteotomy before the connecting end, and the width of the guide end is smaller than the width of the connecting end, so that it is convenient for the guide end to be inserted between the two bone structures after osteotomy. In addition, the guide end is provided with a chamfer, which further facilitates the insertion of the guide end between the two bone structures after osteotomy, and the setting of the chamfer can prevent the guide end from scratching the bone structure during the insertion process.

[0016] Preferably, the inner side surface of the positioning portion is provided with a plurality of sections, and the plurality of sections of the inner side surface are arranged at intervals along the first direction.

[0017] In the present solution, the above-mentioned structural form is adopted, and the multi-section positioning part can fit with the outer sides of the two bone structures after osteotomy, ensuring that the verification part is located in the osteotomy area and close to the edge of the tibia. It can provide guidance for the movement of the verification part, so that the verification part can move in a preset direction, thereby improving the stability and reliability of the movement of the verification part, thereby realizing precise positioning of the verification part and further improving the insertion accuracy of the verification part.

[0018] Preferably, the inner side surface of the positioning portion is adjacent to the verification surface of the verification portion, and a second groove is formed at the junction of the inner side surface and the verification surface.

[0019] In this solution, the above-mentioned structural form is adopted, the inner side surface of the positioning part is fitted with the outer side surface of the bone, and the verification surface of the verification part is fitted with the osteotomy cut surface, and the outer side surface of the bone and the osteotomy cut surface form a sharp angle. Therefore, a second groove is provided at the adjacent part of the inner side surface and the verification surface, so as to make way for the sharp angle formed by the outer side surface of the bone and the osteotomy cut surface, ensuring that the sharp angle can be accommodated by the second groove, preventing the sharp angle from interfering with the verification surface or the inner side surface, thereby further ensuring the accuracy of verification and positioning.

[0020] Preferably, the osteotomy guiding device further comprises a handle, the handle is connected to the verification part, a plurality of third grooves are provided on the handle, the plurality of third grooves are symmetrically arranged along the first direction, and / or the plurality of third grooves are spaced apart along the first direction.

[0021] In this solution, the above-mentioned structural form is adopted, which makes it convenient for doctors to hold the filling block for insertion, improves the convenience of operation, and is convenient for doctors to use.

[0022] Preferably, one end of the first guide plate close to the second guide plate and one end of the second guide plate close to the first guide plate both have mating surfaces, the mating surfaces include a first plane and a second plane, the first plane and the second plane are connected, and the first plane and the second plane are set at an angle; an osteotomy groove is constructed between the two mating surfaces.

[0023] In the present solution, the above-mentioned structural form is adopted, and both the first guide plate and the second guide plate adopt a V-shaped three-dimensional structure, so that they can quickly fit with the patient's bone surface during surgery; at the same time, the first guide plate and the second guide plate set the corresponding first plane and second plane according to the correction angle of the knee joint axis, so that the doctor can quickly and accurately locate the osteotomy position and its depth during surgery, thereby improving the osteotomy accuracy, getting rid of the dependence of osteotomy surgery on the doctor's experience, reducing the difficulty of surgery and improving the surgical effect, while also reducing the number of fluoroscopy times during osteotomy surgery, greatly reducing intraoperative radiation, ensuring the health of doctors and patients, and reducing surgery time.

[0024] Preferably, the osteotomy guiding device further comprises a connecting column, both ends of which are respectively connected to the matching surfaces of the first guide plate and the second guide plate, so as to form a fixed connection relationship between the matching surfaces of the first guide plate and the second guide plate.

[0025] In this solution, the above-mentioned structural form is adopted to facilitate the taking of the first guide plate and the second guide plate.

[0026] The positive and progressive effects of the present invention are:

[0027] The first guide plate is connected to one side of the osteotomy opening, and the second guide plate is connected to the other side of the osteotomy opening. After the osteotomy is completed, the first guide plate and the second guide plate are removed, and the verification part is inserted between the two bone structures after the osteotomy along the first direction. After the verification part is inserted a preset distance, the osteotomy correction angle reaches a pre-defined value. In addition, during the insertion of the verification part along the first direction, the inner side of the positioning part fits with the outer side of the two bone structures after the osteotomy, ensuring that the verification part is located in the osteotomy area and close to the edge of the tibia, and realizing accurate positioning of the verification part, thereby ensuring the stability of the verification part and the expansion accuracy of the osteotomy area, so that the verification part has only one unique position after insertion, thereby ensuring that the verification part realizes unique limitation. The above-mentioned structural form improves the accuracy of osteotomy, gets rid of the dependence of osteotomy surgery on the doctor's experience, reduces the difficulty of surgery and improves the surgical effect, and also reduces the number of intraoperative fluoroscopy times of osteotomy surgery, greatly reduces intraoperative radiation, protects the health of doctors and patients, and reduces the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a partial schematic diagram of the osteotomy guide device of Example 1 of the present invention (I);

[0029] Figure 2 It is a partial schematic diagram of the osteotomy guide device of Example 1 of the present invention (II);

[0030] Figure 3 It is a partial schematic diagram of the osteotomy guide device of Example 1 of the present invention (III);

[0031] Figure 4 It is a partial schematic diagram of the osteotomy guide device of Example 1 of the present invention (IV);

[0032] Figure 5 Schematic diagram of the calibration positioning member of Example 1 of the present invention (I);

[0033] Figure 6 Schematic diagram of the calibration positioning member of embodiment 1 of the present invention (II);

[0034] Figure 7 Schematic diagram of the calibration positioning member of Example 1 of the present invention (III);

[0035] Figure 8 Schematic diagram (IV) of the calibration positioning member of Example 1 of the present invention;

[0036] Fig. 9 Schematic diagram of the calibration positioning member of embodiment 2 of the present invention (I);

[0037] Fig.10 Schematic diagram of the calibration positioning member of embodiment 2 of the present invention (II);

[0038] Fig.11Schematic diagram of the calibration positioning member of embodiment 2 of the present invention (III);

[0039] Fig.12 Schematic diagram (iv) of the calibration positioning member of embodiment 2 of the present invention;

[0040] Fig.13 Schematic diagram (V) of the calibration positioning member of Example 2 of the present invention;

[0041] Fig.14 Schematic diagram (VI) of the calibration positioning member of Example 2 of the present invention.

[0042] Description of reference numerals:

[0043] First guide plate 1

[0044] Second guide plate 2

[0045] Check positioning piece 3

[0046] Verification unit 31

[0047] Guide end 311

[0048] Connection terminal 312

[0049] Check surface 313

[0050] Positioning portion 32

[0051] Inside side 321

[0052] Limiting part 4

[0053] Limiting surface 41

[0054] Handle 5

[0055] The third groove 51

[0056] First groove 6

[0057] Second groove 7

[0058] Guide plate positioning hole 8

[0059] Connecting column 9

[0060] Mating surface 10

[0061] First plane 101

[0062] Second plane 102

[0063] Press block 11

[0064] Transverse osteotomy groove 14

[0065] Ascending osteotomy groove 15

[0066] Recessed area 16 DETAILED DESCRIPTION

[0067] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0068] Example 1

[0069] like Figures 1 to 8 As shown, this embodiment provides an osteotomy guiding device, which is used to guide osteotomy. The osteotomy guiding device includes a first guide plate 1, a second guide plate 2 and a verification positioning member 3. The verification positioning member 3 includes a verification part 31 and a positioning part 32. The verification part 31 is connected to the positioning part 32. The verification part 31 is used to be inserted between the two bone structures after osteotomy along the first direction to verify the correction angle after osteotomy; the positioning part 32 has an inner side surface 321 extending along the first direction; when the verification part 31 is inserted into the preset position for verification, the inner side surface 321 of the positioning part 32 fits with the outer side surfaces of the two bone structures after osteotomy. Specifically, the first guide plate 1 is connected to the upper bone structure, and the second guide plate 2 is connected to the lower bone structure. After the osteotomy is completed, the first guide plate 1 and the second guide plate 2 are removed, and the verification part 31 is inserted between the two bone structures after osteotomy along the first direction. After the verification part 31 is inserted to the preset distance, the osteotomy correction angle reaches a pre-defined value. In addition, during the insertion of the verification part 31 along the first direction, the inner side 321 of the positioning part 32 fits with the outer side of the two bone structures after osteotomy, ensuring that the verification part 31 is located in the osteotomy area and close to the edge of the tibia, and realizing accurate positioning of the verification part 31, thereby ensuring the stability of the verification part 31 and the expansion accuracy of the osteotomy area, so that the verification part 31 has only one unique position after insertion, thereby ensuring the unique limitation of the verification part 31. The above structural form improves the osteotomy accuracy and verification accuracy, gets rid of the dependence of osteotomy surgery on the doctor's experience, reduces the difficulty of surgery and improves the surgical effect, and also reduces the number of intraoperative fluoroscopy times of osteotomy surgery, greatly reduces intraoperative radiation, protects the health of doctors and patients, and reduces the operation time.

[0070] In this embodiment, the first guide plate 1 is connected to the upper bone structure, and the second guide plate 2 is connected to the lower bone structure. In other embodiments, the first guide plate 1 is connected to the lower bone structure, and the second guide plate 2 is connected to the upper bone structure. The specific connection positions of the first guide plate 1 and the second guide plate 2 with the bone structure are not limited here. In addition, in this embodiment, the first direction mentioned above is the extension direction of the verification positioning member 3. In other embodiments, the first direction can be adjusted according to actual needs and is not limited here.

[0071] The osteotomy guiding device of this embodiment is suitable for osteotomy surgery on patients who do not have the problem of retroversion in traditional surgery.

[0072] In order to further increase the stability and reliability of the insertion process of the verification part 31 , the positioning part 32 is preferably symmetrically arranged on the verification part 31 along the first direction.

[0073] In specific use, such as Figure 2 As shown, the surfaces of the first guide plate 1 and the second guide plate 2 close to the bone structure are coupling surfaces that fit the patient's tibia, and at least one bony positioning point is set on the first guide plate 1 and the second guide plate 2, which ensures the accuracy of the first guide plate 1 and the second guide plate 2 and the two bone structures after osteotomy. A large number of recessed areas 16 are reserved on the coupling surface, which can match the soft tissue and blood vessels in the tibial area, thereby protecting the soft tissue and blood vessels in the tibial area. The osteotomy guide device also includes a pressing block 11, and the pressing block 11 is set on the outer surface corresponding to the bony positioning point. At least four positioning guide plate positioning holes 8 are set on the lower right side of the pressing block 11, and the number of positioning holes opened on the first guide plate 1 and the second guide plate 2 is nearly equal, which is convenient for positioning and fastening the first guide plate 1 and the second guide plate 2 after osteotomy. In order to facilitate the doctor's osteotomy operation, a pressing block 11 is also set in the middle of the second guide plate 2 near the osteotomy area, and a depth prompt number is set above the pressing block 11. In addition, at least one fixing plate positioning hole is provided on the osteotomy guide device, and some fixing plate positioning holes overlap with the guide plate positioning holes 8, thereby ensuring the positioning accuracy of the fixing plate when the osteotomy correction is completed, and the doctor does not need to perform secondary positioning of the positioning plate after the osteotomy is completed, thereby reducing the difficulty of the operation and improving the correction accuracy. In other embodiments, a pressing block 11 may also be provided on the second guide plate 2, thereby further facilitating the doctor's osteotomy operation.

[0074] like Figures 1 to 8As shown, the two ends of the verification part 31 along the first direction are respectively provided with a guide end 311 and a connecting end 312, and a verification surface 313 is provided on one side of the verification part 31 close to the two bone structures after osteotomy, and the two ends of the verification surface 313 extend to the guide end 311 and the connecting end 312 respectively, and the positioning part 32 is provided on the verification surface 313. Specifically, the verification part 31 is provided with a verification surface 313 on both sides opposite to each other along the first direction, so that when the verification part 31 is inserted between the two bone structures after osteotomy, the verification surfaces 313 on both sides of the verification part 31 are respectively attached to the two bone structures after osteotomy and slide along the extension of the verification surface 313. With the above-mentioned structural form, the guide end 311 is first inserted between the two bone structures after osteotomy, and under the guidance of the verification surface 313, the connecting end 312 moves along the first direction toward the direction close to the two bone structures after osteotomy. When the connecting end 312 moves a preset distance, the osteotomy correction angle reaches a pre-defined value. In addition, the positioning portion 32 is arranged on the verification surface 313, so that when the connecting end 312 moves along the first direction, the positioning portion 32 arranged on the verification surface 313 can fit with the outer side surfaces of the two bone structures after osteotomy, ensuring that the verification portion 31 is located in the osteotomy area and close to the edge of the tibia, and can provide guidance for the movement of the verification portion 31, so that the verification portion 31 can move in a preset direction, thereby improving the stability and reliability of the movement of the verification portion 31, thereby realizing precise positioning of the verification portion 31 and further improving the insertion accuracy of the verification portion 31.

[0075] like Figures 1 to 8 As shown, in this embodiment, two ends of the positioning portion 32 extend to the guide end 311 and the connection end 312 respectively. In order to increase the structural strength of the verification portion 31, the positioning portion 32 and the verification portion 31 are preferably formed in one piece.

[0076] See also Figures 1 to 8 It is understood that the osteotomy guide device also includes a limiting portion 4, which is connected to the connecting end 312. A limiting surface 41 is provided on the side of the limiting portion 4 facing the positioning portion 32, and the limiting surface 41 is used to abut against the front surfaces of the two bone structures after osteotomy. Specifically, the width of the limiting portion 4 is greater than the width of the connecting end 312, so that both sides of part of the limiting portion 4 protrude from both sides of the connecting end 312. In other words, both sides of the limiting portion 4 close to the connecting end 312 protrude from the verification surface 313, and the limiting surface 41 is set at the part of the limiting portion 4 protruding from the verification surface 313. The limiting surface 41 faces the limiting surface 41 and the positioning portion 32, so that after the verification portion 31 is inserted by a preset distance, the limiting surface 41 abuts against the front surfaces of the two bone structures after osteotomy, and the osteotomy correction angle at this time reaches a pre-defined value. The above statement can also be understood as, when the verification part 31 is inserted until the limiting surface 41 abuts against the tibia, the verification part 31 is inserted by a preset distance, so that the osteotomy correction angle reaches a preset value.

[0077] In this embodiment, in order to increase the structural strength of the osteotomy guide device, the limiting part 4 is preferably integrally formed with the verification part 31. In other embodiments, the limiting part 4 and the verification part 31 can be separately provided, and the limiting part 4 and the verification part 31 can be detachably connected, so that if one of the limiting part 4 and the verification part 31 has a problem, only the damaged verification part 31 and the limiting part 4 need to be replaced for normal use, thereby reducing the cost of use.

[0078] like Figure 7 and Figure 8 As shown, the inner side surface 321 of the positioning part 32 is adjacent to the limiting surface 41 of the limiting part 4, and the first groove 6 is formed at the junction of the inner side surface 321 and the limiting surface 41. With the above-mentioned structural form, the inner side surface 321 of the positioning part 32 fits with the outer side surface of the bone, and the limiting surface 41 of the limiting part 4 fits with the front surfaces of the two bone structures after osteotomy, and the outer side surface of the bone and the front surface form a sharp angle. Therefore, the first groove 6 is provided at the junction of the inner side surface 321 and the limiting surface 41, so as to make way for the sharp angle formed by the outer side surface and the front surface of the bone, ensure that the sharp angle can be accommodated by the first groove 6, and prevent the sharp angle from interfering with the limiting surface 41 or the inner side surface 321, thereby further ensuring the accuracy of verification and positioning.

[0079] See also Figures 5 to 14 It is understood that the guide end 311 is arranged at the front end of the connecting end 312 along the first direction, and the width of the guide end 311 is smaller than the width of the connecting end 312; the guide end 311 is provided with a chamfer. With the above-mentioned structural form, the guide end 311 is arranged at the front end of the connecting end 312 along the first direction. In other words, the guide end 311 is inserted between the two bone structures after osteotomy before the connecting end 312, and the width of the guide end 311 is smaller than the width of the connecting end 312, thereby facilitating the insertion of the guide end 311 between the two bone structures after osteotomy. In addition, the guide end 311 is provided with a chamfer, which further facilitates the insertion of the guide end 311 between the two bone structures after osteotomy, and the setting of the chamfer can prevent the guide end 311 from scratching the bone structure during the insertion process.

[0080] like Figure 5 As shown, in this embodiment, the width of the guide end 311 mentioned above refers to the distance from the upper surface to the lower surface of the guide end 311; the width of the connection end 312 refers to the distance from the upper surface to the lower surface of the connection end 312.

[0081] The inner side surface 321 of the positioning part 32 is adjacent to the verification surface 313 of the verification part 31, and the second groove 7 is formed at the junction of the inner side surface 321 and the verification surface 313. With the above-mentioned structural form, the inner side surface 321 of the positioning part 32 fits the outer side surface of the bone, and the verification surface 313 of the verification part 31 fits the osteotomy cut surface, and the outer side surface of the bone and the osteotomy cut surface form a sharp angle. Therefore, the second groove 7 is provided at the junction of the inner side surface 321 and the verification surface 313, so as to make way for the sharp angle formed by the outer side surface of the bone and the osteotomy cut surface, ensure that the sharp angle can be accommodated by the second groove 7, and prevent the sharp angle from interfering with the verification surface 313 or the inner side surface 321, thereby further ensuring the accuracy of verification and positioning.

[0082] like Figures 5 to 14 As shown, the osteotomy guide device also includes a handle 5, which is connected to the verification part 31, and a plurality of third grooves 51 are provided on the handle 5. The plurality of third grooves 51 can be symmetrically arranged along the first direction; the plurality of third grooves 51 can also be arranged at intervals along the first direction; the plurality of third grooves 51 can also be symmetrically arranged along the first direction, and the plurality of third grooves 51 can be arranged at intervals along the first direction. Preferably, the plurality of third grooves 51 can also be symmetrically arranged along the first direction, and the plurality of third grooves 51 can be arranged at intervals along the first direction, so that it is convenient for the doctor to hold the filling block for insertion operation, which improves the convenience of operation and is convenient for the doctor to use.

[0083] like Figures 5 to 14 As shown, this embodiment takes four grooves on the handle 5 as an example for adaptive expression. In other embodiments, the number of grooves on the handle 5 can be adjusted according to actual needs, and the number of grooves is not specifically limited here.

[0084] The end of the first guide plate 1 close to the second guide plate 2 and the end of the second guide plate 2 close to the first guide plate 1 both have a mating surface 10, and the mating surface 10 includes a first plane 101 and a second plane 102, the first plane 101 and the second plane 102 are connected, and the first plane 101 and the second plane 102 are set at an angle; an osteotomy groove is constructed between the two mating surfaces 10. With the above-mentioned structural form, the first guide plate 1 and the second guide plate 2 both adopt a V-shaped three-dimensional structure, which is convenient for the first guide plate 1 and the second guide plate 2 to quickly fit with the patient's bone surface during surgery; at the same time, the first guide plate 1 and the second guide plate 2 are set with the corresponding first plane 101 and the second plane 102 according to the correction angle of the knee joint axis, which is convenient for the doctor to quickly and accurately locate the osteotomy position and its depth during surgery, improve the osteotomy accuracy, get rid of the dependence of osteotomy surgery on the doctor's experience, reduce the difficulty of surgery and improve the surgical effect, and also reduce the number of intraoperative fluoroscopy times of osteotomy surgery, greatly reduce intraoperative radiation, protect the health of doctors and patients, and reduce the operation time.

[0085] like Figure 1As shown, in this embodiment, the osteotomy groove includes a transverse osteotomy groove 14 and an ascending osteotomy groove 15, and the transverse osteotomy groove 14 is connected to the ascending osteotomy groove 15. The first guide plate 1 and the second guide plate 2 are connected together by arranging at least one connecting column 9 on the osteotomy groove to form the entire guide plate. The first guide plate 1 and the second guide plate 2 are provided with a boss of a certain thickness near the osteotomy area, so that the overall arrangement of the guide plate is a V-shaped three-dimensional structure. When used specifically, the first plane 101 and the second plane 102 are arranged at an obtuse angle. In special cases, the angle between the first plane 101 and the second plane 102 can also be a right angle or an acute angle. No specific restrictions are made on the angle between the first plane 101 and the second plane 102. In addition, an osteotomy depth prompt number is provided in the osteotomy groove to ensure the accuracy of osteotomy and reduce the difficulty and time of the operation.

[0086] like Figure 1 and Figure 2 As shown, the osteotomy guide device further includes a connecting column 9, the two ends of which are respectively connected to the mating surfaces 10 of the first guide plate 1 and the second guide plate 2, so that a fixed connection relationship is formed between the mating surfaces 10 of the first guide plate 1 and the second guide plate 2. The above structure facilitates the taking of the first guide plate 1 and the second guide plate 2. Before osteotomy, the connecting column 9 can be removed.

[0087] In specific implementation, in addition to the two ends of the positioning portion 32 extending to the guide end 311 and the connecting end 312 respectively, the present invention provides the following feasible implementation modes in the following content, but the protection scope of the present invention should not be limited to the following implementation modes.

[0088] Example 2

[0089] like Figures 8 to 14 As shown, the medial side surface 321 of the positioning part 32 is provided with multiple sections, and the multiple sections of the medial side surface 321 are arranged at intervals along the first direction. With the above-mentioned structural form, the multiple sections of the positioning part 32 can fit with the lateral sides of the two bone structures after osteotomy, ensuring that the verification part 31 is located in the osteotomy area and close to the edge of the tibia, and can provide guidance for the movement of the verification part 31, so that the verification part 31 can move in a preset direction, improving the stability and reliability of the movement of the verification part 31, thereby realizing accurate positioning of the verification part 31, and further improving the insertion accuracy of the verification part 31.

[0090] During specific use, the surface of the verification part 31 has a plurality of accommodating grooves, and the plurality of accommodating grooves are arranged at intervals along the first direction. The plurality of positioning parts 32 are connected to the plurality of accommodating grooves in a one-to-one correspondence, and the two ends of the positioning part 32 protrude from the verification surface 313 respectively. The inner side surface 321 of the part of the positioning part 32 protruding from the verification surface 313 fits the outer side surfaces of the two bone structures after osteotomy. The plurality of positioning parts 32 can be detachably connected to the plurality of accommodating grooves, so that if one or several of the plurality of positioning parts 32 are damaged or the verification part 31 is damaged, only one or several of the damaged positioning parts 32 or the verification part 31 need to be replaced for normal use, thereby reducing the cost of use. In other embodiments, the verification part 31 can also be integrally formed with the positioning part 32, thereby improving the structural strength of the verification positioning member 3, and the specific connection form of the verification part 31 and the positioning part 32 is not limited here.

[0091] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An osteotomy guide device, characterized in that: The osteotomy guiding device is used for guiding osteotomy, and comprises a first guide plate (1), a second guide plate (2) and a verification positioning member (3); the verification positioning member (3) comprises a verification portion (31) and a positioning portion (32); the verification portion (31) is connected to the positioning portion (32); the verification portion (31) is used for being inserted between two bone structures after osteotomy along a first direction to verify the correction angle after osteotomy; the positioning portion (32) has an inner side surface (321) extending along the first direction; when the verification portion (31) is inserted into a preset position for verification, the inner side surface (321) of the positioning portion (32) fits with the outer side surfaces of the two bone structures after osteotomy.

2. The osteotomy guide device according to claim 1, characterized in that: The verification portion (31) is provided with a guide end (311) and a connection end (312) at two ends along the first direction, and a verification surface (313) is provided on one side of the verification portion (31) close to the two bone structures after osteotomy, and the two ends of the verification surface (313) extend to the guide end (311) and the connection end (312) respectively, and the positioning portion (32) is arranged on the verification surface (313).

3. The osteotomy guide device according to claim 2, characterized in that: The osteotomy guiding device further comprises a limiting portion (4), the limiting portion (4) being connected to the connecting end (312), and a limiting surface (41) being provided on a side of the limiting portion (4) facing the positioning portion (32), the limiting surface (41) being used to abut against the front surfaces of the two bone structures after osteotomy.

4. The osteotomy guide device according to claim 3, characterized in that: The inner side surface (321) of the positioning portion (32) is adjacent to the limiting surface (41) of the limiting portion (4), and a first groove (6) is formed at the junction of the inner side surface (321) and the limiting surface (41).

5. The osteotomy guide device according to claim 2, characterized in that: The guide end (311) is arranged at the front end of the connecting end (312) along the first direction, and the width of the guide end (311) is smaller than the width of the connecting end (312); the guide end (311) is provided with a chamfer.

6. The osteotomy guide device according to claim 1, characterized in that: The inner side surface (321) of the positioning portion (32) is provided with a plurality of sections, and the plurality of sections of the inner side surface (321) are arranged at intervals along the first direction.

7. The osteotomy guide device according to claim 1, characterized in that: The inner side surface (321) of the positioning portion (32) is adjacent to the verification surface (313) of the verification portion (31), and a second groove (7) is formed at the junction of the inner side surface (321) and the verification surface (313).

8. The osteotomy guide device according to claim 1, characterized in that: The osteotomy guiding device further comprises a handle (5), wherein the handle (5) is connected to the verification part (31), and a plurality of third grooves (51) are provided on the handle (5), wherein the plurality of third grooves (51) are symmetrically arranged along the first direction, and / or the plurality of third grooves (51) are spaced apart along the first direction.

9. The osteotomy guide device according to claim 1, characterized in that: The end of the first guide plate (1) close to the second guide plate (2) and the end of the second guide plate (2) close to the first guide plate (1) both have a mating surface (10), the mating surface (10) includes a first plane (101) and a second plane (102), the first plane (101) and the second plane (102) are connected, and the first plane (101) and the second plane (102) are arranged at an angle; an osteotomy groove is constructed between the two mating surfaces (10).

10. The osteotomy guide device according to claim 9, characterized in that: The osteotomy guiding device further comprises a connecting column (9), the two ends of which are respectively connected to the mating surfaces (10) of the first guide plate (1) and the second guide plate (2), so as to form a fixed connection relationship between the mating surfaces (10) of the first guide plate (1) and the second guide plate (2).

Images