Fusion hip replacement guide device and manufacturing method thereof

Abstract

The present disclosure provides a fusion hip replacement guide device and a manufacturing method thereof, wherein the fusion hip replacement guide device comprises a guide coupling device, a positioning pin, a cross bar and a guide pin; the guide coupling device is provided with a plurality of first positioning holes, and the guide coupling device is configured to be fixed to the femur through the positioning pins respectively penetrated through the plurality of first positioning holes; the guide coupling device is provided with a reference guide hole, and the axis of the reference guide hole is parallel to a preset insertion direction of an acetabular file; the cross bar is provided with a plurality of guide holes, and the axis of the guide holes is parallel to the axis of the reference guide hole, and the cross bar is configured to rotate around the guide coupling device with the axis of the reference guide hole as a rotating axis; the guide pin is penetrated through one of the plurality of reference guide holes and fixed to the femur, and the guide pin is configured to guide the acetabular file.

Description

Technical Field

[0001] The present disclosure relates to a surgical instrument, and more particularly to a fusion hip replacement guide device and a manufacturing method thereof. Background Art

[0002] The flexion ankylosing deformity experienced by patients with ankylosing spondylitis causes contracture of the tissues surrounding the hip joint, significantly complicating the visual field during total hip replacement surgery. This is particularly true during femoral osteotomy, as the femoral neck is sometimes positioned posteriorly and inferiorly, preventing conventional dislocation of the femoral head. This results in limited or even complete hip joint motion. In these cases, it is necessary to determine the position of the lesser trochanter and perform an osteotomy 1.5 cm above it. However, the position of the lesser trochanter is difficult to determine, necessitating a secondary osteotomy. This involves performing an initial osteotomy on the femoral neck near the acetabulum, which then allows for hip joint motion. A second osteotomy is then performed distal to the femoral neck, preserving 1-1.5 cm of the femoral spur. Furthermore, the acetabular cup implant placement angle for existing THA surgeries is 40-45° abduction and 10-15° anteversion. However, patients with ankylosing spondylitis often experience spinal deformity and pelvic extension. For every 10° of pelvic rotation, the anteversion and camber angles increase by 5°, necessitating corresponding adjustments to the acetabular cup implant angle. The operator can only estimate the prosthesis angle with the help of traditional X-rays, and it is difficult to achieve precise control of the abduction and anteversion angle, especially in cases with this type of spinal deformity and pelvic rotation. Summary of the Invention

[0003] A main purpose of the present disclosure is to overcome at least one of the above-mentioned defects of the prior art and provide a fusion hip replacement guide device that can improve the accuracy of osteotomy.

[0004] Another main purpose of the present disclosure is to overcome at least one of the above-mentioned defects of the prior art and provide a method for manufacturing a fusion hip replacement guide device that can improve the accuracy of osteotomy.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0006] According to one aspect of the present disclosure, a fusion hip replacement guide device is provided, the fusion hip replacement guide device comprising a guide coupling device, a positioning pin, a cross bar and a guide pin; the guide coupling device is provided with a plurality of first positioning holes, and the guide coupling device is configured to be fixed to the femur by means of positioning pins respectively provided through the plurality of first positioning holes; the guide coupling device is provided with a reference guide hole, the axis of the reference guide hole is parallel to a preset insertion direction of an acetabular rasp; the cross bar is provided with a plurality of guide holes, the axis of the guide holes is parallel to the axis of the guide holes, and the cross bar is configured to rotate around the guide coupling device with the axis of the reference guide hole as a rotating axis; the guide pin is provided through one of the plurality of guide holes and fixed around the femur or acetabulum, and the guide pin is configured to guide the acetabular rasp.

[0007] According to one embodiment of the present disclosure, the guide coupling device includes a femoral neck attachment plate, a rotating shaft structure, and a connecting column. One end of the crossbar is rotatably connected to the rotating shaft structure, and the femoral neck attachment plate is provided with a plurality of first positioning holes. One end of the connecting column is connected to the femoral neck attachment plate, and the other end is connected to the rotating shaft structure.

[0008] According to one embodiment of the present disclosure, the rotating shaft structure is inserted into the reference guide hole; wherein, the cross bar has a connecting end and a free end, and the connecting end is rotatably sleeved on the other end of the rotating shaft structure.

[0009] According to one embodiment of the present disclosure, the connecting end of the cross bar has an axial hole for the rotating shaft structure to pass through, and the connecting end is provided with a window structure connected to the axial hole.

[0010] According to one embodiment of the present disclosure, the guide coupling device includes a positioning guide plate and a guide coupling plate. The positioning guide plate defines a plurality of first positioning holes; the guide coupling plate defines a plurality of second positioning holes. The positions of the plurality of second positioning holes of the guide coupling plate correspond one-to-one with the positions of the plurality of first positioning holes of the positioning guide plate. The positioning guide plate is configured to be placed on a femur so that the plurality of positioning pins are respectively inserted through the plurality of first positioning holes and fixed to the femur.

[0011] According to one embodiment of the present disclosure, the positioning guide is made based on three-dimensional imaging anatomical data of the femur and acetabulum.

[0012] According to one embodiment of the present disclosure, the guide coupling plate is provided with a boss, the boss is located between the two second positioning holes, and the reference guide hole is opened on the boss.

[0013] According to one embodiment of the present disclosure, the positioning needle is a Kirschner wire. The plurality of guide holes are sequentially spaced along the extension direction of the crossbar.

[0014] According to one embodiment of the present disclosure, the fusion hip replacement guide device further includes: a guide slot structure provided on the guide coupling device; wherein the guide slot structure is configured to guide the osteotomy knife to perform osteotomy on the femoral neck.

[0015] According to another aspect of the present disclosure, a method for manufacturing a fusion hip replacement guide device is provided, comprising the following steps:

[0016] Establish a hip mechanical coordinate system based on the patient's anatomical structure, set the abduction and anteversion angles as needed, and determine the direction of the reference guide hole;

[0017] Constructing a rotating shaft that coincides with the reference guide hole, wherein the rotating shaft is assembled with the reference guide hole;

[0018] According to the spatial and anatomical structure of the femoral neck, the area attached to the femoral neck is selected to generate a femoral neck attachment plate;

[0019] Performing Boolean operation on the femoral neck attachment plate and the rotating shaft to generate a guide coupling device;

[0020] A crossbar is provided and sleeved on the rotating shaft.

[0021] As can be seen from the above technical solutions, the advantages and positive effects of the fusion hip replacement guide device and the manufacturing method thereof proposed in the present disclosure are:

[0022] The disclosed fusion hip replacement guide device includes a guide coupling device and a crossbar. The guide coupling device defines a reference guide hole whose axis is parallel to the preset insertion direction of the acetabular rasp. The crossbar is rotatably connected to the reference guide hole and defines multiple guide holes whose axes are parallel to the axis of the reference guide hole. Accordingly, the crossbar is configured to rotate around the guide coupling device about the axis of the reference guide hole, thereby providing the operator with accurate direction for rasp-reaming the acetabulum during surgery, significantly improving osteotomy accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The various objects, features, and advantages of the present disclosure will become more apparent upon consideration of the following detailed description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are merely illustrative illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout.

[0024] Figure 1 is a schematic structural diagram of a fusion hip replacement guide device according to an exemplary embodiment;

[0025] Figure 2 is a schematic structural diagram of a positioning guide plate according to an exemplary embodiment;

[0026] Figure 3 is a schematic structural diagram of a guide coupling plate according to an exemplary embodiment;

[0027] Figure 4 It is a structural diagram of the crossbar;

[0028] Figure 5 is a schematic structural diagram of a fusion hip replacement guide device according to an exemplary embodiment;

[0029] Figure 6 A schematic structural diagram of a fusion hip replacement guide device according to another exemplary embodiment is shown.

[0030] The following are the descriptions of the reference numerals:

[0031] 100. Fusion hip replacement guide device;

[0032] 110. Guide coupling device;

[0033] 111. First positioning hole;

[0034] 112. Reference guide hole;

[0035] 113. Boss

[0036] 120, positioning pin;

[0037] 130, horizontal bar;

[0038] 131. Guide hole

[0039] 132, connection end;

[0040] 1321, shaft hole;

[0041] 1322, window structure;

[0042] 133, free end;

[0043] 150. Rotating shaft structure;

[0044] 160, connecting column;

[0045] 170, positioning guide;

[0046] 171, second positioning hole;

[0047] 172. Guide coupling plate;

[0048] 173. Femoral neck attachment plate;

[0049] 180. Guide groove structure. DETAILED DESCRIPTION

[0050] Typical embodiments that embody the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various variations in different embodiments without departing from the scope of the present disclosure, and the description and drawings therein are essentially for illustrative purposes rather than for limiting the present disclosure.

[0051] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of this disclosure and in which are shown by way of example different exemplary structures, systems and steps that may implement aspects of the present disclosure. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps may be used, and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "above", "between", "within", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein for convenience only, for example, according to the directions of the examples depicted in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of a structure to fall within the scope of the present disclosure.

[0052] like Figure 1 As shown, in this embodiment, the fusion hip replacement guide plate device 100 mainly includes a guide coupling device 110, a positioning pin 120, a crossbar 130 and a guide pin. Figures 2 to 6 , Figure 2 : A schematic structural diagram of a positioning guide plate that can embody the principles of the present disclosure is representatively shown in FIG. Figure 3 : A schematic structural diagram of a guide coupling plate that can embody the principles of the present disclosure is representatively shown in FIG. Figure 4 A schematic structural diagram of a crossbar is representatively shown; Figure 5 is a schematic structural diagram of a fusion hip replacement guide device according to an exemplary embodiment; Figure 6 A schematic structural diagram of a fusion hip replacement guide device according to another exemplary embodiment is shown. The following, in conjunction with the above-mentioned figures, describes in detail the structure, connection mode, and functional relationship of the main components of the fusion hip replacement guide device proposed in the present disclosure.

[0053] like Figure 1As shown, in this embodiment, the guide coupling device 110 defines a plurality of first positioning holes 111. The guide coupling device 110 is secured to the femur via positioning pins 120, each of which is inserted through each of the plurality of first positioning holes 111. The guide coupling device 110 defines a reference guide hole 112, the axis of which is parallel to a predetermined insertion direction of an acetabular rasp. A crossbar 130 is rotatably connected at one end to a rotating shaft structure 150. The crossbar 130 defines a plurality of guide holes 131, the axes of which are parallel to the axes of the reference guide holes 112. The crossbar 130 is configured to rotate about the guide coupling device 110 with the axes of the reference guide holes 112 serving as the rotation axis. A guide pin is selectively inserted through one of the plurality of guide holes 131 and secured around the femur or acetabulum, thereby guiding the acetabular rasp. Accordingly, the crossbar 130 is used to rotate around the guide coupling device 110 with the axis of the reference guide hole 112 as the rotation axis, thereby providing an accurate direction for the operator to rasp the acetabulum during surgery, greatly improving the accuracy of osteotomy.

[0054] Further, if Figure 3 As shown, in this embodiment, the guide coupling device 110 has two second positioning holes 172, which are spaced apart. After the guide coupling device 110 is stabilized on the patient's bone, the two second positioning holes 172 are used to locate the position of the guide coupling device 110 in the patient's bone. The two positioning pins 120 pass through the two second positioning holes 172 to fix the position of the guide coupling device 110 in the bone. In other embodiments, the number of second positioning holes 172 is not limited to two, but may be more than two. The two or more second positioning holes 172 are spaced apart to fix the position of the guide coupling device 110 in the bone.

[0055] Further, if Figure 4 As shown, in this embodiment, a plurality of guide holes 131 are sequentially spaced along the extension direction of the crossbar 130. The plurality of guide holes 131 arranged sequentially and spaced allow the guide needle to pass through different positions and can also improve the accuracy of the guide needle insertion position.

[0056] Furthermore, if Figure 5 As shown, based on the design that multiple guide holes 131 are sequentially spaced along the extension direction of the crossbar 130, in this embodiment, multiple guide holes 131 are evenly spaced. The evenly spaced guide holes 131 can improve the accuracy of the insertion position of the positioning pin 120 into the crossbar 130.

[0057] Further, if Figure 5 As shown, in this embodiment, the positioning needle 120 can preferably be a Kirschner wire, and the guide needle can preferably be a Kirschner wire.

[0058] Further, if Figure 1As shown, in this embodiment, the guide coupling device 110 is made based on the 3D imaging anatomical data of the femur and acetabulum. The guide coupling device 110 supported by the 3D imaging anatomical data can accurately set the patient's appropriate abduction and anteversion angles before surgery.

[0059] Implementation Method 1

[0060] See Figure 1 , which representatively illustrates a fusion hip replacement guide device that embodies the principles of the present disclosure. The fusion hip replacement guide device proposed in the present disclosure is described using the example of its application in total hip replacement surgery. Those skilled in the art will readily appreciate that various modifications, additions, substitutions, deletions, or other variations may be made to the specific embodiments described below to apply the relevant designs of the present disclosure to other types of surgeries or other processes. Such variations remain within the scope of the principles of the fusion hip replacement guide device proposed in the present disclosure.

[0061] like Figure 1 As shown, in this embodiment, the guide coupling device 110 includes a femoral neck attachment plate 173, a connecting column 160 and a rotating shaft structure 150. The femoral neck attachment plate 173 is provided with a plurality of first positioning holes 111. One end of the connecting column 160 is connected to the femoral neck attachment plate 173, and the other end is connected to the rotating shaft structure 150. Figure 1 As shown, in this embodiment, the shaft structure 150 is inserted into the reference guide hole 112. The crossbar 130 has a connecting end 132 and a free end 133. The connecting end 132 of the crossbar 130 is sleeved on the other end of the shaft structure 150. The connecting end 132 of the crossbar 130 is rotatably mounted on the other end of the shaft structure 150. The rotatable arrangement of the crossbar 130 enables the operator to avoid the nerve and find the appropriate guide needle insertion hole during surgery. In other embodiments, the crossbar 130 can also be rotatably connected by other rotating parts, such as a pin, a rotating cylinder, etc.

[0062] Furthermore, if Figure 1 As shown, based on the design that the cross bar 130 has a connecting end 132 and a free end 133, in this embodiment, the connecting end 132 of the cross bar 130 has an axial hole 1321 for the rotating shaft structure 150 to pass through, and the connecting end 132 is provided with a window structure 1322 connected to the axial hole 1321, and the window structure 1322 is conducive to powder removal.

[0063] like Figure 1As shown, the method for manufacturing the fusion hip replacement guide device 100 is as follows: scanning the acetabular component to obtain medical imaging data of the patient, establishing a hip mechanical coordinate system based on the patient's anatomical structure, and setting appropriate abduction and anteversion angles according to clinical needs to determine the direction of the reference guide hole 112. A three-dimensional structure (rotating shaft structure 150) is constructed to coincide with the reference guide hole 112, and the rotating shaft structure 150 is assembled with the reference guide hole 112. The area attached to the femoral neck is determined by the spatial and anatomical structure of the femoral neck to generate a solid structure (femoral neck attachment plate 173). A Boolean operation is performed on the femoral neck attachment plate 173 and the rotating shaft structure 150 to generate the overall structure (guide coupling device 110).

[0064] Implementation Method 2

[0065] In this exemplary embodiment, the fusion hip replacement guide device proposed in the present disclosure is described using the example of its application in total hip replacement surgery. Those skilled in the art will readily appreciate that various modifications, additions, substitutions, deletions, or other variations may be made to the following specific embodiments to apply the relevant designs of the present disclosure to other types of surgeries or other procedures, and such variations remain within the scope of the principles of the fusion hip replacement guide device proposed in the present disclosure.

[0066] like Figure 2-3 As shown, in this embodiment, the guide coupling device 110 further includes a positioning guide plate 170 and a guide coupling plate 172. The positioning guide plate 170 defines a plurality of first positioning holes 111. The positions of the plurality of second positioning holes 171 in the guide coupling plate 172 correspond one-to-one with the positions of the plurality of first positioning holes 111 in the positioning guide plate 170. The positioning guide plate 170 is placed on the femur to allow the plurality of positioning pins 120 to be inserted through the plurality of first positioning holes 111 and secured to the femur. During normal use, the positioning guide plate 170 is first placed in the appropriate position on the patient's femur. Once the position is determined, the plurality of positioning pins are inserted through the first positioning holes 111. The positioning guide plate 170 is then removed and placed back into the guide coupling plate 172, aligned with the positions of the positioning pins. The plurality of second positioning holes 171 in the guide coupling plate 172 correspond one-to-one with the positions of the positioning pins 120. The guide coupling device of this embodiment is modular and operates in a step-by-step manner, making it suitable for use in very confined surgical spaces.

[0067] Further, if Figure 2 As shown, the fusion hip replacement guide device 100 also includes a positioning guide 170. In this embodiment, positioning guide 170 is fabricated based on 3D imaging anatomical data of the femur and acetabulum. This 3D imaging anatomical data supports positioning guide 170, allowing for precise preoperative adjustment of the patient's appropriate abduction and anteversion angles.

[0068] Furthermore, if Figure 3As shown, based on the design of two second positioning holes 171 defined in the guide coupling plate 172, in this embodiment, a boss 113 is provided on the guide coupling plate 172. The boss 113 is located between the two second positioning holes 171, and the reference guide hole 112 is defined on the boss 113. In other embodiments, the boss 113 is not limited to being located between the two second positioning holes 171; the boss 113 may also be provided on one side of one of the second positioning holes 171.

[0069] like Figure 2-Figure 5 As shown, the manufacturing method of the guide coupling device 110 is: scanning the acetabulum component to obtain the patient's medical imaging data, establishing a hip mechanical coordinate system according to the patient's anatomical structure, and setting appropriate abduction and anteversion angles according to clinical needs, so as to determine the direction of the reference guide hole 112, constructing a boss 113 that coincides with the reference guide hole 112, and assembling it with the reference guide hole 112.

[0070] A support column is placed on the femoral neck, close to the acetabulum side and adjacent to the boss 113, to ensure that the two Kirschner wires do not penetrate the surrounding important nerves and blood vessels. Figure 3 The guide coupling plate 172 in.

[0071] Take the area attached to the femoral neck, the selected area depends on the spatial and anatomical structure of the femoral neck, and generate a solid structure (femoral neck attachment plate 173). Perform Boolean operation on the femoral neck attachment plate 173 and the support column to obtain Figure 2 Finally, the cross bar 130 is made and sleeved on the rotating shaft structure 150.

[0072] Implementation Method 3

[0073] In this exemplary embodiment, the fusion hip replacement guide device proposed in the present disclosure is described using the example of its application in total hip replacement surgery. Those skilled in the art will readily appreciate that various modifications, additions, substitutions, deletions, or other variations may be made to the following specific embodiments to apply the relevant designs of the present disclosure to other types of surgeries or other procedures, and such variations remain within the scope of the principles of the fusion hip replacement guide device proposed in the present disclosure.

[0074] like Figure 6 As shown, in this embodiment, the fusion hip replacement guide plate assembly 100 further includes a guide slot structure 180. The guide slot structure 180 is provided on the guide coupling assembly 110 and is used to guide the osteotome for osteotomy of the femoral neck. The osteotome is mounted in the guide slot structure 180, thereby assisting the operator in osteotomy.

[0075] like Figure 6As shown, the manufacturing method of the guide coupling device 100 is: scanning the acetabulum component to obtain the patient's medical imaging data, establishing a hip mechanical coordinate system according to the patient's anatomical structure, and setting appropriate abduction and anteversion angles according to clinical needs, thereby determining the direction of the reference guide hole and constructing a three-dimensional structure (boss 113) that coincides with the reference guide hole.

[0076] A support column is placed on the femoral neck, close to the acetabulum side and adjacent to the boss 113, to ensure that the two Kirschner wires do not penetrate the surrounding important nerves and blood vessels.

[0077] The area attached to the femoral neck is selected, and the selected area depends on the spatial and anatomical structure of the femoral neck to generate a solid structure (femoral neck attachment plate). The femoral neck attachment plate and the support column are subjected to Boolean operation to obtain the positioning guide plate 170.

[0078] Perform Boolean operation on the positioning guide plate and the tool groove to obtain Figure 5 Guide plate with knife groove in the middle.

[0079] It should be noted that the fusion hip replacement template assemblies shown in the drawings and described in this specification are only a few examples of the many types of fusion hip replacement template assemblies that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are in no way limited to any details of the fusion hip replacement template assemblies shown in the drawings or described in this specification, or to any components of the fusion hip replacement template assemblies.

[0080] In summary, the fusion hip replacement guide device proposed in the present disclosure includes a guide coupling device, multiple positioning pins, a crossbar, and a guide pin. The guide coupling device is provided with multiple first positioning holes. The guide coupling device is used to be fixed to the femur via multiple positioning pins respectively inserted into the multiple first positioning holes. The guide coupling device is provided with a reference guide hole, the axis of which is parallel to the preset insertion direction of the acetabular rasp. One end of the crossbar is rotatably connected to the reference guide hole. The crossbar is provided with multiple guide holes, the axes of which are parallel to the axis of the reference guide hole. Accordingly, the crossbar is used to rotate around the guide coupling device with the axis of the reference guide hole as the rotation axis, thereby providing an accurate direction for the operator to use the fusion hip replacement guide device to rasp the acetabulum normally, greatly improving the accuracy of osteotomy.

[0081] The above describes and / or illustrates in detail an exemplary embodiment of the fusion hip replacement guide device proposed by the present disclosure. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from the other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "an" and "above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including" and "having" are used to express an open-ended inclusive meaning and mean that in addition to the listed elements / components / etc., additional elements / components / etc. may be present. In addition, the terms "first" and "second" in the claims and the specification are used only as labels and are not numerical limitations on their objects.

[0082] While the disclosed hip fusion replacement template assembly has been described in terms of various specific embodiments, those skilled in the art will recognize that the disclosure can be practiced with modification within the spirit and scope of the claims.

Claims

1. A fusion hip replacement guide device, characterized in that: The fusion hip replacement guide device comprises a guide coupling device, a positioning pin, a crossbar and a guide pin; The guide coupling device is provided with a first positioning hole, and the guide coupling device is configured to be fixed to the femur through positioning pins respectively inserted into the first positioning hole; The guide coupling device is provided with a reference guide hole, the axis of which is parallel to a preset acetabular rasp insertion direction; The crossbar is provided with a plurality of guide holes, the axes of the guide holes are parallel to the axes of the reference guide holes, and the crossbar is configured to rotate around the guide coupling device with the axes of the reference guide holes as the rotation axis; The guide pin is inserted into one of the plurality of guide holes and fixed around the femur or acetabulum, and the guide pin is configured to guide the acetabular rasp; the plurality of guide holes are sequentially spaced along the extension direction of the crossbar; The guide coupling device comprises: A positioning guide plate, having a plurality of the first positioning holes; The guide coupling plate is provided with a plurality of second positioning holes; Wherein, the positions of the plurality of second positioning holes of the guide coupling plate correspond one to one with the positions of the plurality of first positioning holes of the positioning guide plate; Wherein, the positioning guide plate is configured to be placed on the femur so that the plurality of positioning pins are respectively inserted into the plurality of the first positioning holes and fixed to the femur; The guide coupling plate is provided with a boss, the boss is located between the two second positioning holes, and the reference guide hole is opened on the boss.

2. The fusion hip replacement guide device according to claim 1, characterized in that: The positioning guide is made according to the three-dimensional imaging anatomical data of the femur and acetabulum.

3. The fusion hip replacement guide device according to claim 1, characterized in that: The fusion hip replacement guide device also includes: A guide groove structure, provided on the guide coupling device; Wherein, the guide groove structure is configured to guide the osteotomy knife to perform osteotomy on the femoral neck.

4. A fusion hip replacement guide device, characterized in that: The fusion hip replacement guide device comprises a guide coupling device, a positioning pin, a crossbar and a guide pin; The guide coupling device is provided with a first positioning hole, and the guide coupling device is configured to be fixed to the femur through positioning pins respectively inserted into the first positioning hole; The guide coupling device is provided with a reference guide hole, the axis of which is parallel to a preset acetabular rasp insertion direction; The crossbar is provided with a plurality of guide holes, the axes of the guide holes are parallel to the axes of the reference guide holes, and the crossbar is configured to rotate around the guide coupling device with the axes of the reference guide holes as the rotation axis; The guide pin is inserted into one of the plurality of guide holes and fixed around the femur or acetabulum, and the guide pin is configured to guide the acetabular rasp; the plurality of guide holes are sequentially spaced along the extension direction of the crossbar; The guide coupling device comprises: A rotating shaft structure, one end of the cross bar is rotatably connected to the rotating shaft structure; The femoral neck attachment plate is provided with a plurality of the first positioning holes; A connecting column, one end of which is connected to the femoral neck attachment plate, and the other end of which is connected to the rotating shaft structure; The rotating shaft structure is inserted into the reference guide hole; wherein the cross bar has a connecting end and a free end, and the connecting end is rotatably sleeved on the other end of the rotating shaft structure; The connecting end of the cross bar has an axial hole for the rotating shaft structure to pass through, and the connecting end is provided with a window structure connected to the axial hole.

5. A method for manufacturing a fusion hip replacement guide device, for manufacturing the fusion hip replacement guide device as claimed in claim 1 or 4, comprising the following steps: Establish the hip mechanical coordinate system according to the patient's anatomical structure, set the abduction and anteversion angles according to the needs of use, and determine the direction of the reference guide hole; Constructing a rotating shaft that coincides with the reference guide hole, wherein the rotating shaft is assembled with the reference guide hole; According to the spatial and anatomical structure of the femoral neck, the area attached to the femoral neck is selected to generate a femoral neck attachment plate; Performing Boolean operation on the femoral neck attachment plate and the rotating shaft to generate a guide coupling device; A cross bar is provided and sleeved on the rotating shaft.

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