Acetabular side guiding module, femoral side guiding module and hip joint guiding system

Abstract

The present invention provides an acetabular side guiding module, a femoral side guiding module and a hip joint guiding system; the acetabular side guiding module is used to be arranged at a first predetermined position to guide a first operation direction relative to the first predetermined position, wherein the first predetermined position includes at least three target positions; the acetabular side guiding module includes: a positioning assembly and a guiding assembly; the positioning assembly includes a first positioning surface and a first guiding portion, the first positioning surface is used to fit at least three target positions of the first predetermined position; the first guiding portion is used for a first positioning member to pass through and fix the first positioning member on the first predetermined position; the guiding assembly includes a second positioning surface, a second guiding portion and a first guiding portion, the second positioning surface is used to fit at least one target position of the first predetermined position after the positioning assembly is removed; the second guiding portion is used for the first positioning member to penetrate into; the first guiding portion is used to guide the first operation direction.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an acetabular side guiding module, a femoral side guiding module and a hip joint guiding system. Background Art

[0002] Total hip arthroplasty (THA) is an important means for treating hip joint diseases such as femoral head necrosis and hip dysplasia. In recent years, with the progress of surgical techniques and the continuous optimization of surgical approaches, THA has gradually been accepted by more doctors and patients. However, the learning curve of THA is relatively long, and it has relatively high requirements for the experience of surgeons, preoperative planning, and intraoperative operations. In view of this, a hip joint surgical guiding device has emerged. The hip joint surgical guiding device is based on the medical imaging data of patients. Through digital software, the region of interest is segmented according to clinical needs, and the three-dimensional reconstruction of the model is completed. Then, it is processed according to the parameters related to clinical needs, surgical approaches, and exposure ranges, and an intraoperative navigation device with a guiding function is designed accordingly; it can assist surgeons to complete the operation more accurately and efficiently, shorten the learning curve, and improve the clinical effect of the operation.

[0003] Currently, there are also some hip joint guiding devices, but they often have problems such as unstable fitting, resulting in an increase in surgical steps, a large surgical incision, or low surgical precision. Summary of the Invention

[0004] The purpose of the present invention is to provide an acetabular side guiding module, a femoral side guiding module and a hip joint guiding system to solve the problems brought by the unstable fitting of existing hip joint guiding devices.

[0005] To solve the above technical problems, a first aspect of the present invention provides an acetabular side guiding module, which is used to be arranged at a first predetermined position to guide a first operation direction relative to the first predetermined position, where the first predetermined position includes at least three target positions; the acetabular side guiding module includes: a positioning component and a guiding component;

[0006] The positioning component includes a first positioning surface and a first guiding portion. The first positioning surface is used to fit at least three of the target positions of the first predetermined position; the first guiding portion is used for a first positioning member to pass through and fix the first positioning member on the first predetermined position;

[0007] The guiding component includes a second positioning surface, a second guiding portion and a first guiding portion. The second positioning surface is used to fit at least one of the target positions of the first predetermined position after the positioning component is removed; the second guiding portion is used for the first positioning member to penetrate into;

[0008] The first guiding portion is used to guide the first operation direction.

[0009] Optionally, in the acetabular side guiding module, the positioning component includes a separable first sub-component and a second sub-component. The first positioning surface spans across the first sub-component and the second sub-component, and the first sub-component and the second sub-component are respectively configured to fit at least one of the target positions.

[0010] Optionally, in the acetabular side guiding module, the positioning component includes a first holding portion, which is disposed opposite to the first positioning surface.

[0011] Optionally, in the acetabular side guiding module, the guiding component includes a third guiding portion, whose extending direction is non-coplanar with that of the second guiding portion; the third guiding portion is for a second positioning member to pass through and be fixed on the first predetermined position.

[0012] Optionally, in the acetabular side guiding module, the positioning component includes at least two of the first guiding portions; the guiding component includes at least two of the second guiding portions.

[0013] To solve the above technical problems, a second aspect of the present invention provides a femoral side guiding module, which is configured to be disposed at a second predetermined position to guide a second operation direction relative to the second predetermined position; wherein the second predetermined position is a non-circular irregular-shaped position; the femoral side guiding module includes: a third positioning surface, a fourth guiding portion, and a second guiding portion;

[0014] The third positioning surface is for fitting the second predetermined position;

[0015] The fourth guiding portion is for a third positioning member to pass through and be fixed on the second predetermined position;

[0016] The second guiding portion is for guiding the second operation direction.

[0017] Optionally, in the femoral side guiding module, the fourth guiding portion includes at least two guiding holes, which penetrate through the third positioning surface and have at least two intersection points with the third positioning surface.

[0018] Optionally, in the femoral side guiding module, the femoral side guiding module includes a second holding portion, which is disposed opposite to the third positioning surface.

[0019] Optionally, in the femoral side guiding module, the second guiding portion includes at least two guiding surfaces arranged at an angle, and the second operation direction includes at least two sub-operation directions, and each guiding surface is for guiding one of the sub-operation directions.

[0020] To solve the above technical problems, a third aspect of the present invention provides a hip joint guiding system, which includes the acetabular side guiding module and the femoral side guiding module as described above.

[0021] In summary, the acetabular side guiding module provided by the present invention is used to be arranged at a first predetermined position to guide a first operation direction relative to the first predetermined position, wherein the first predetermined position includes at least three target positions; the acetabular side guiding module includes: a positioning component and a guiding component; the positioning component includes a first positioning surface and a first guiding portion, the first positioning surface is used to fit at least three of the target positions of the first predetermined position; the first guiding portion is used for a first positioning member to pass through so that the first positioning member is fixed on the first predetermined position; the guiding component includes a second positioning surface, a second guiding portion and a first guiding portion, the second positioning surface is used to fit at least one of the target positions of the first predetermined position after the positioning component is removed; the second guiding portion is used for the first positioning member to penetrate into; the first guiding portion is used to guide the first operation direction.

[0022] With such a configuration, by the first positioning surface of the positioning component fitting at least three target positions of the first predetermined position, the positioning component can be placed accurately and stably, thereby ensuring the positioning accuracy. After the position of the positioning component is determined, the first positioning member can be fixed on the first predetermined position through the first guiding portion. Then the positioning component is removed, and the second positioning surface of the guiding component is made to fit at least one of the target positions of the first predetermined position. By using the first positioning member to penetrate into the second guiding portion, the guiding component can be positioned on the first predetermined position in a preset direction, so that the first guiding portion of the guiding component can accurately and reliably guide the first operation direction, facilitating the operation of the surgeon. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Those of ordinary skill in the art will understand that the provided drawings are used to better understand the present invention and do not constitute any limitation to the scope of the present invention. Among them:

[0024] Figure 1 is a schematic diagram of the positioning component of an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the positioning component in another direction of an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the guiding component of an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of another preferred example of the guiding component of an embodiment of the present invention;

[0028] Figure 5aSchematic diagram of the second preferred example of the positioning component according to an embodiment of the present invention;

[0029] Figure 5b Schematic diagram of the third preferred example of the positioning component according to an embodiment of the present invention;

[0030] Figure 6 Schematic diagram of the femoral-side guiding module according to an embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the femoral-side guiding module in another direction according to an embodiment of the present invention.

[0032] In the drawings:

[0033] 1 - Positioning component; 11 - First positioning surface; 12 - First guiding portion; 13 - First sub-component; 14 - Second sub-component; 15 - First holding portion;

[0034] 2 - Guiding component; 21 - Second positioning surface; 22 - Second guiding portion; 23 - First guiding portion; 24 - Third guiding portion;

[0035] 3 - Femoral-side guiding module; 31 - Third positioning surface; 32 - Fourth guiding portion; 321 - Guiding hole; 33 - Second guiding portion; 331 - Guiding surface; 34 - Second holding portion. Detailed implementation manners

[0036] To make the objectives, advantages and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are all in very simplified forms and are not drawn to scale, and are only used to facilitate and clearly assist in explaining the objectives of the embodiments of the present invention. In addition, the structures shown in the accompanying drawings are often part of the actual structures. In particular, the accompanying drawings need to show different emphases and sometimes different scales are used.

[0037] As used in the present invention, the singular forms "a", "an", and "the" include plural referents, the term "or" is generally used in the sense of including "and / or", the term "several" is generally used in the sense of including "at least one", the term "at least two" is generally used in the sense of including "two or more", in addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or at least two of such features, "one end" and "the other end" as well as "proximal end" and "distal end" generally refer to two corresponding parts, which include not only the endpoints. In addition, as used in the present invention, "mounted", "connected", "coupled", an element "disposed" on another element should be understood in a broad sense, generally only indicating a connection, coupling, cooperation or transmission relationship between the two elements, and the two elements may be directly or indirectly connected, coupled, cooperated or transmitted through an intermediate element, and cannot be construed as indicating or implying the spatial position relationship between the two elements, that is, an element may be inside, outside, above, below or on one side of another element in any orientation, unless otherwise explicitly stated in the content. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, directional terms such as above, below, up, down, upward, downward, left, right, etc. are used with respect to the exemplary embodiments as shown in the figures, the upward or up direction is towards the top of the corresponding figure, and the downward or down direction is towards the bottom of the corresponding figure.

[0038] The object of the present invention is to provide an acetabular side guiding module, a femoral side guiding module and a hip joint guiding system to solve the problems caused by the unstable fitting of the existing hip joint guiding device.

[0039] Generally, for total hip arthroplasty (THA), surgical operations need to be performed on the femoral side and the acetabular side respectively. Therefore, the hip joint guiding system often includes an acetabular side guiding module and a femoral side guiding module.

[0040] The acetabular side guiding module is used to optimize the size and implantation direction of the acetabular cup. The inventor found that the acetabular side guiding module of the existing hip joint guiding device often takes the acetabular fossa as the fitting position. However, there is cartilage in the acetabular fossa, and the acetabular cartilage cannot be reflected in the CT image data. Therefore, when the acetabular side guiding module designed based on the CT image data is placed, it is necessary to peel off part or all of the acetabular cartilage, which on the one hand increases the surgical steps and is likely to reduce the surgical accuracy, and on the other hand also increases the harm suffered by the patient and is not conducive to the postoperative recovery of the patient.

[0041] The femoral-side guiding module is used to guide the angle and position of the femoral neck incision. The inventor found that existing femoral-side guiding modules often fit with the anatomical structures of the femoral head or femoral neck as bony landmarks. However, since the femoral head is approximately spherical and the femoral neck is approximately cylindrical, when the surgeon places the femoral-side guiding module during the operation, it is easy to deviate from the planned fitting position, thereby reducing the surgical precision. In addition, in order to better fit the bone surface, existing femoral-side guiding modules often need to expose the femoral head more, thus increasing the surgical wound, which is contrary to the concept of minimally invasive surgery and is not conducive to the postoperative rehabilitation of patients.

[0042] Please refer to Figures 1 to 5b , based on the above research, an acetabular-side guiding module is provided in an embodiment of the present invention. It is used to be set at a first predetermined position to guide a first operation direction relative to the first predetermined position, where the first predetermined position includes at least three target positions; the acetabular-side guiding module includes: a positioning component 1 and a guiding component 2; the positioning component 1 includes a first positioning surface 11 and a first guiding portion 12, the first positioning surface 11 is used to fit at least three of the target positions of the first predetermined position; the first guiding portion 12 is used for a first positioning member to pass through and fix the first positioning member on the first predetermined position; the guiding component 2 includes a second positioning surface 21, a second guiding portion 22 and a first guiding portion 23, the second positioning surface 21 is used to fit at least one of the target positions of the first predetermined position after the positioning component 1 is removed; the second guiding portion 22 is used for the first positioning member to penetrate into; the first guiding portion 23 is used to guide the first operation direction.

[0043] For the convenience of description, this embodiment takes the acetabulum as an example of the first predetermined position for illustration. It should be noted that the acetabulum is only a demonstration example of the predetermined object and not a limitation on the first predetermined position. In some other application scenarios, the acetabular prosthesis, the acetabular model of an animal, etc. can also be used as the first predetermined position, and the acetabular-side guiding module provided in this embodiment can be used to perform simulated surgery or force calibration operations on it. The present invention is not limited thereto. Further, the acetabulum includes at least three target positions. In this embodiment, the acetabular fossa's oval fossa, the acetabular notch, and the acetabular outer edge opposite the acetabular notch are taken as examples of the three target positions of the acetabulum for illustration. It can be understood that these three target positions are also only examples of the acetabulum's target positions and not limitations. In some other application scenarios, more target positions or other parts of the acetabulum can also be selected as target positions, and the present invention is not limited thereto. Furthermore, the first operation direction refers to the insertion direction of the acetabular rasp and the prosthesis implantation direction.

[0044] Optionally, the shape of the first positioning surface 11 can be reconstructed and customized through medical imaging data of the acetabulum (such as CT imaging data). Since the first positioning surface 11 can fit at least three target positions of the first predetermined part, that is, it can fit at least the oval fossa in the acetabular fossa, the acetabular notch, and the outer acetabular rim opposite the acetabular notch. With such a configuration, the positioning component 1 can be reliably positioned on the acetabulum without the need to peel the acetabular cartilage. On the one hand, the surgical steps are simplified and the surgical accuracy is ensured. On the other hand, the harm to the patient is reduced, which is beneficial to the patient's postoperative recovery.

[0045] In Figure 1 and Figure 2 In the exemplary embodiment shown, the positioning component 1 can be a block, the first positioning surface 11 is an outer surface of the block, the first guiding portion 12 can be a guiding hole penetrating through the block, and the first positioning member can be a positioning nail. Preferably, the positioning component 1 includes at least two of the first guiding portions 12, that is, the positioning component 1 includes at least two guiding holes, and the two guiding holes are preferably parallel to each other. After the first positioning surface 11 fits the three target positions, the position of the positioning component 1 relative to the acetabulum is determined. At this time, driving the positioning nail along the guiding hole can drive the positioning nail into the acetabulum, so as to position the positioning nail on the acetabulum according to the pre-operative planned position. It can be understood that in some other embodiments, the first guiding portion 12 is not limited to a guiding hole, and it can also be a guiding groove or other structures, and the first positioning member is not limited to a positioning nail, and it can also be a positioning screw or other structures, which can achieve similar effects, and the present invention is not limited thereto. Preferably, the setting position of the first guiding portion 12 is close to the posterior edge of the acetabulum or the outer acetabular rim opposite the acetabular notch to avoid the positioning nail from piercing through. After the first positioning member is driven into the acetabulum, it can also retract the posterior muscles (such as the posterior part of the tensor fasciae latae, gluteus maximus, etc.) when the acetabulum is exposed.

[0046] In Figure 3 In the exemplary embodiment shown, the guiding component 2 can be a rod-shaped body, and the second positioning surface 21 is located at one end of the axial direction of the rod-shaped body. The second guiding portion 22 extends along the axial direction of the rod-shaped body. After the step of driving the first positioning member into the acetabulum is completed, the positioning component 1 can be removed, and then the guiding component 2 is positioned on the acetabulum. Specifically, the second positioning surface 21 is fitted to at least one target position of the acetabulum, for example, the second positioning surface 21 is fitted to the outer acetabular rim opposite the acetabular notch. Optionally, the shape of the second positioning surface 21 can be reconstructed and customized through medical imaging data of the acetabulum (such as CT imaging data). Of course, in some other embodiments, the second positioning surface 21 is not limited to fitting the outer acetabular rim opposite the acetabular notch, and it can also fit other parts of the acetabulum, and those skilled in the art can configure it according to the actual situation.

[0047] In an alternative exemplary embodiment, the second guiding portion 22 may be a through-opening guiding hole. Preferably, the guiding assembly 2 includes at least two of the second guiding portions 22, that is, the guiding assembly 2 includes at least two guiding holes, and the two guiding holes are preferably parallel to each other. Before the second positioning surface 21 fits the target position, the guiding holes of the second guiding portion 22 can be coaxially aligned with the first positioning member first. Then, the guiding assembly 2 is moved closer to the acetabulum, and the first positioning member penetrates into the guiding hole until the second positioning surface 21 fits the target position, positioning the guiding assembly 2 on the acetabulum. It can be understood that in some other embodiments, the second guiding portion 22 is not limited to being a guiding hole, and it can also be a guiding groove or other structures that can achieve a similar effect, and the present invention is not limited thereto. Further, the number of the second guiding portions 22 is the same as that of the first guiding portions 12, and the distribution positions of the second guiding portions 22 on the guiding assembly 2 are also the same as the distribution positions of the first guiding portions 12 on the positioning assembly 1. Such a configuration ensures that the first positioning members driven in according to the first guiding portions 12 can correspond to the second guiding portions 22 one by one, ensuring the installation accuracy of the guiding assembly 2.

[0048] As Figure 3 shown, in an alternative embodiment, the first guiding portion 23 may be in a tile shape, that is, a part of a similar cylindrical shape after being axially cut. The shape of the concave part of the first guiding portion 23 matches the outer shape of the acetabular rasp connecting rod. Thus, the first guiding portion 23 can guide the first operation direction, that is, guide the insertion direction of the acetabular rasp and the direction of prosthesis implantation. In addition to guiding the first operation direction, the first guiding portion 23 is also used for the operator to hold. The first guiding portion 23 should have a certain extension length along its axis to facilitate holding. In another alternative embodiment, as Figure 4 shown, the first guiding portion 23 may also be in a columnar shape. Of course, those skilled in the art can also select other shapes for the first guiding portion 23 according to the actual situation, and the present invention is not limited thereto. Preferably, the axis of the first guiding portion 23 is parallel to the axis of the rod-shaped body of the guiding assembly 2, also parallel to the extension direction of the second guiding portion 22, and also consistent with the pre-operative planning direction.

[0049] Thus, after the guiding assembly 2 is positioned on the acetabulum, under the guidance of the first guiding portion 23, the acetabular rasp and the prosthesis to be implanted can be accurately inserted for operation. The positioning position of the guiding assembly 2 is accurate, the fitting and fixation are relatively stable, effectively improving the surgical accuracy, and the first guiding portion 23 can also accurately and reliably guide the first operation direction, facilitating the operation of the surgeon.

[0050] Further, please continue to refer to Figure 3 and Figure 4The guide assembly 2 includes a third guide portion 24, and the extension direction of the third guide portion 24 is arranged in a non-planar manner with the extension direction of the second guide portion 22; the third guide portion 24 is used for the second positioning member to pass through. In an exemplary embodiment, the third guide portion 24 can be a guide hole that is opened through, and the second positioning member can be a positioning nail. The positioning nail can pass through the guide hole and be nailed on the acetabulum. Since the extension direction of the third guide portion 24 is non-planar with the extension direction of the second guide portion 22, the two are cross-displaced in direction without interfering with each other. On the one hand, it is convenient to pass through the second positioning member. On the other hand, after the second positioning member is nailed into the acetabulum, it can provide another direction of fixation for the guide assembly 2, so that the guide assembly 2 is firmly and reliably fixed on the acetabulum.

[0051] Please refer to Figure 5a and Figure 5b Preferably, the positioning assembly 1 includes a separable first sub-component 13 and a second sub-component 14, the first positioning surface 11 spans the first sub-component 13 and the second sub-component 14, and the first sub-component 13 and the second sub-component 14 are respectively used to fit at least one of the target positions. The first positioning surface 11 spanning the first sub-component 13 and the second sub-component 14 means that after the first sub-component 13 and the second sub-component 14 are combined, the first positioning surface 11 spans the boundary line between the first sub-component 13 and the second sub-component 14, so that after the first sub-component 13 and the second sub-component 14 are separated, they both have a part of the first positioning surface 11. Considering that the three target positions fitted by the first positioning surface 11 are actually concave and convex spatial positions, the fitting and detachment of the first positioning surface 11 and the acetabulum may be difficult, that is, it is difficult to insert or difficult to remove after inserting. In order to facilitate the installation and removal of the positioning assembly 1, the positioning assembly 1 is configured as a split type, which can be easy to install and remove. Optionally, the first sub-component 13 and the second sub-component 14 can be connected by a buckle. This embodiment does not impose any particular restriction on the division and arrangement of the first sub-component 13 and the second sub-component 14. Figure 5a and Figure 5b Two different partitioning arrangements are shown. Figure 5a It shows that the first sub-component 13 and the second sub-component 14 are arranged in an upper and lower divided arrangement. Figure 5a The first sub-assembly 13 and the second sub-assembly 14 are arranged in a left-right split arrangement. It is understandable that those skilled in the art can also arrange the first sub-assembly 13 and the second sub-assembly 14 in other split arrangements, and this embodiment is not limited thereto.

[0052] Optionally, the positioning assembly 1 includes a first gripping portion 15, and the first gripping portion 15 is disposed opposite to the first positioning surface 11. The first gripping portion 15 can be disposed on a side of the block of the positioning assembly 1 away from the first positioning surface 11, and is used for an operator to grip. Figure 1In the illustrated exemplary embodiment, the first gripping portion 15 is in the shape of a rectangular cuboid. It can be understood that the present embodiment does not particularly limit the shape of the first gripping portion 15, and the first gripping portion 15 can also be selected in other shapes that are convenient for gripping. Further, the first gripping portion 15 may not be provided independently, but the block body of the positioning assembly 1 itself may be used as the gripping portion, which is beneficial to reducing the structural volume of the positioning assembly 1.

[0053] Please refer to Figure 6 and Figure 7 In addition, an embodiment of the present invention further provides a femoral-side guiding module 3, which is configured to be disposed at a second predetermined position to guide a second operation direction relative to the second predetermined position; wherein the second predetermined position is a non-circular non-uniform shape; the femoral-side guiding module 3 includes: a third positioning surface 31, a fourth guiding portion 32, and a second guiding portion 33; the third positioning surface 31 is used to fit the second predetermined position; the fourth guiding portion 32 is used for a third positioning member to pass through and be fixed on the second predetermined position; the second guiding portion 33 is used to guide the second operation direction.

[0054] In this embodiment, the intertrochanteric crest of the femur is taken as an example of the second predetermined position for illustration. It should be noted that the intertrochanteric crest of the femur is only an exemplary embodiment of the predetermined object, rather than a limitation on the second predetermined position. Further, the second predetermined position is a non-circular non-uniform shape, and the non-circular non-uniform shape refers to a portion that is not cylindrical or spherical, avoiding selecting the femoral head similar to a sphere and the femoral neck similar to a cylinder as the second predetermined position. Thus, those skilled in the art can also select other non-circular non-uniform portions on the femur as the second predetermined position. In addition to selecting the femur as the operation object of the femoral-side guiding module, in some other application scenarios, a femoral prosthesis, a femoral model of an animal, etc. can also be used as the second predetermined position, and the femoral-side guiding module provided by this embodiment can be used to perform operations such as simulated surgery or force calibration on it, and the present invention is not limited thereto. Further, the second operation direction refers to the osteotomy direction.

[0055] Optionally, the shape of the third positioning surface 31 can be reconstructed and customized through medical image data of the femur (such as CT image data). Since the third positioning surface 31 can fit the intertrochanteric crest, the femoral-side guiding module 3 can be reliably positioned on the femur, and there will be no deviation in the fitting position due to the circular characteristics of the femoral head and the femoral neck, ensuring the surgical accuracy. In addition, the method of fitting the intertrochanteric crest does not require exposing more of the femoral head, which is beneficial to reducing the surgical wound and facilitating the postoperative rehabilitation of the patient.

[0056] In Figure 6 and Figure 7In the illustrated example, the femoral side guide module 3 may be a block, the third positioning surface 31 may be an outer surface of the block, the fourth guide portion 32 may be a guide hole that is through and opened on the block, and the third positioning member may be a positioning nail. After the third positioning surface 31 fits the intertrochanteric crest, the position of the femoral side guide module 3 relative to the femur is determined. At this time, the positioning nail is driven into the guide hole along the fourth guide portion 32, and the positioning nail can be driven into the femur, so that the femoral side guide module 3 is positioned on the femur according to the position planned before the operation. It can be understood that in some other embodiments, the fourth guide portion 32 is not limited to a guide hole, and it can also be a structure such as a guide groove, and the third positioning member is not limited to a positioning nail, and it can also be a structure such as a positioning screw, which can achieve similar effects, and the present invention is not limited to this.

[0057] Preferably, the fourth guide portion 32 includes at least two guide holes 321, and the guide holes 321 penetrate the third positioning surface 31 and have at least two intersections with the third positioning surface 31. Since the guide holes 321 and the third positioning surface 31 have at least two intersections, the positioning pins will also cross the intertrochanteric crest during the process of passing through the guide holes 321, so that the femoral guide module 3 can be reliably fixed on the femur.

[0058] Optionally, the two guide holes 321 are parallel to each other. Since a row of holes will be formed on the intertrochanteric crest when the positioning pin passes through, in order to avoid the problem of bone cracking, the distance between the two guide holes 321 is preferably greater than 5 mm, and the maximum distance between the axis of the guide hole 321 and the third positioning surface 31 is greater than 5 mm, so that after the positioning pin crosses the intertrochanteric crest, the distance between it and the bone surface that crosses the intertrochanteric crest is greater than 5 mm.

[0059] Optionally, the femoral guide module 3 includes a second gripping portion 34, which is disposed opposite to the third positioning surface 31. The second gripping portion 34 can be disposed on a side of the block of the femoral guide module 3 away from the third positioning surface 31, and is used for the operator to grasp. Figure 6 In the illustrated example, the second gripping portion 34 is in the shape of a cuboid. It is understandable that the present embodiment does not particularly limit the shape of the second gripping portion 34, and the second gripping portion 34 can also select other shapes that are convenient for gripping. Further, the second gripping portion 34 can also not be independently arranged, and the block of the femoral side guide module 3 itself is used as the gripping place, which is conducive to reducing the structural volume of the femoral side guide module 3.

[0060] Preferably, the second guiding portion 33 includes at least two guiding surfaces 331 arranged at an angle, and the second operation direction includes at least two sub-operation directions. Each of the guiding surfaces 331 is used to guide one of the sub-operation directions. It should be noted that the sub-operation directions here refer to different osteotomy directions. Specifically, during the process of femoral neck osteotomy in hip joint surgery, the osteotomy position of the femoral neck often interferes with the greater trochanter of the femur. Surgeons often make two cuts when osteotomizing the femoral neck to avoid the greater trochanter. Based on this, both sub-operation directions are directions to avoid the greater trochanter. It can be understood that the arrangement angle of the two guiding surfaces 331 can be determined according to the outer contour of the greater trochanter, and in practice, it can be custom-designed and reconstructed based on the medical image data of the femur (such as CT image data).

[0061] Based on the acetabular side guiding module and the femoral side guiding module 3 as described above, this embodiment further provides a hip joint guiding system, which includes the acetabular side guiding module and the femoral side guiding module 3. Further, the hip joint guiding system further includes a first positioning member, a second positioning member, and a third positioning member.

[0062] In summary, the acetabular side guiding module provided by the present invention is used to be arranged at a first predetermined position to guide a first operation direction relative to the first predetermined position, where the first predetermined position includes at least three target positions; the acetabular side guiding module includes: a positioning component and a guiding component; the positioning component includes a first positioning surface and a first guiding portion, the first positioning surface is used to fit at least three of the target positions of the first predetermined position; the first guiding portion is used for the first positioning member to pass through and fix the first positioning member on the first predetermined position; the guiding component includes a second positioning surface, a second guiding portion, and a first guiding portion, the second positioning surface is used to fit at least one of the target positions of the first predetermined position after the positioning component is removed; the second guiding portion is used for the first positioning member to penetrate; the first guiding portion is used to guide the first operation direction. With such a configuration, by the first positioning surface of the positioning component fitting at least three target positions of the first predetermined position, the positioning component can be accurately and stably placed, thereby ensuring the positioning accuracy. After the positioning component determines the position, the first positioning member can be fixed on the first predetermined position through the first guiding portion. Then, the positioning component is removed, and the second positioning surface of the guiding component is fitted to at least one target position of the first predetermined position. By using the first positioning member to penetrate the second guiding portion, the guiding component can be positioned on the first predetermined position in a preset direction, so that the first guiding portion of the guiding component can accurately and reliably guide the first operation direction, facilitating the operation of the surgeon.

[0063] It should be noted that the above-mentioned several embodiments can be combined with each other. The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art of the present invention based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. An acetabular side guiding module for being disposed at a first predetermined position to guide a first operation direction relative to the first predetermined position, wherein the first predetermined position includes at least three target positions; characterized in that, Comprising: A positioning component and a guiding component; The positioning component includes a first positioning surface and a first guiding portion. The first positioning surface is used to fit at least three of the target positions of the first predetermined portion. At least three of the target positions are the oval fossa in the acetabular fossa, the acetabular notch, and the acetabular outer edge opposite to the acetabular notch; the first guiding portion is used for a first positioning member to pass through and fix the first positioning member on the first predetermined portion; The guiding component includes a second positioning surface, a second guiding portion, and a first guiding portion. The second positioning surface is used to fit at least one of the target positions of the first predetermined portion after the positioning component is removed; the second guiding portion is used for the first positioning member to penetrate; The first guiding portion is used to guide the first operation direction; The positioning component includes a separable first sub-component and a second sub-component. The first positioning surface spans the first sub-component and the second sub-component. The first sub-component and the second sub-component are respectively used to fit at least one of the target positions.

2. The acetabular side guiding module according to claim 1, characterized in that The positioning component includes a first holding portion, and the first holding portion is arranged opposite to the first positioning surface.

3. The acetabular side guiding module according to claim 1, wherein The guiding component includes a third guiding portion, and the extending direction of the third guiding portion is arranged in a different plane from the extending direction of the second guiding portion; the third guiding portion is used for a second positioning member to pass through and fix on the first predetermined portion.

4. The acetabular side guiding module according to claim 1, characterized in that, The positioning component includes at least two of the first guiding portions; the guiding component includes at least two of the second guiding portions.

5. A hip joint guiding system, characterized in that, Comprising the acetabular side guiding module according to any one of claims 1 to 4, further comprising a femoral side guiding module. The femoral side guiding module is used to be arranged on a second predetermined portion to guide a second operation direction relative to the second predetermined portion; wherein the second predetermined portion is a non-circular special-shaped portion; the femoral side guiding module includes: a third positioning surface, a fourth guiding portion, and a second guiding portion; The third positioning surface is used to fit the second predetermined portion; The fourth guiding portion is used for a third positioning member to pass through and fix on the second predetermined portion; The second guiding portion is used to guide the second operation direction.

6. The hip joint guiding system according to claim 5, characterized in that The fourth guiding portion includes at least two guiding holes, and the guiding holes penetrate the third positioning surface and have at least two intersection points with the third positioning surface.

7. The hip joint guiding system according to claim 5, wherein The femoral side guiding module includes a second holding portion, and the second holding portion is arranged opposite to the third positioning surface.

8. The hip joint guiding system according to claim 5, characterized in that, The second guiding portion includes at least two guiding surfaces arranged at an angle. The second operation direction includes at least two sub-operation directions, and each guiding surface is used to guide one of the sub-operation directions.

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