Method and device for generating virtual internal fixation objects based on image restoration

Abstract

The present invention provides a method and device for generating a virtual internal fixation object based on image restoration, wherein the method for generating a virtual internal fixation object based on image restoration comprises the following steps: identifying the positions and shapes of multiple fracture fragments from a fracture medical image including a fracture site; judging the matching of the multiple fracture fragments by analyzing the shapes of the multiple fracture fragments; performing image restoration on the fracture site by moving the positions of the multiple fracture fragments based on the matching; and generating a virtual internal fixation object for fixing the fracture site restored by image restoration.

Description

Technical Field

[0001] The present invention relates to a method and device for generating a virtual internal fixation object based on a method of restoring a fractured bone on an image. Background Art

[0002] Fractures can take on various forms depending on the size, direction, and location of the stress, so the broken bone fragments also take on different forms, that is, the number, location, and shape of the fracture fragments will vary.

[0003] In order to treat fractures of various shapes, the following treatment process is required, that is, after cutting the skin and muscle tissue closest to the fracture site, the multiple fracture fragments are arranged in a way that maximizes the maintenance of the original position and shape before the fracture, and the multiple fracture fragments are fixed in a way that does not move after arrangement by using plates and screws.

[0004] Among them, the operation of maintaining the original position and shape of multiple fracture fragments before fracture is called reduction, the operation of fixing multiple fracture fragments by plates and screws is called internal fixation, and the plates and screws or metal pins or intramedullary nails used for internal fixation are called internal fixators. In the above-mentioned reduction and internal fixation operations, the more the number of fracture fragments and the more irregular the shapes, the greater the difficulty of the operation and the lower the success rate.

[0005] On the other hand, when a fracture occurs, the number, position and shape of the fracture fragments vary depending on the stress (Stress). Since the fracture image was initially used as a medical image to confirm the patient's condition, it is impossible to know what the original shape of the bone was before the fracture. Of course, although the unfractured bone on the opposite side can be used as a mirror image (Mirroring) to reconstruct and derive the original shape of the bone before the fracture, this is not accurate because the human skeleton is not exactly the same on both sides.

[0006] Finally, at present, internal fixation surgery can only be performed without knowing the original shape of the fractured bone, so it is impossible to manufacture customized internal fixation devices such as plates that completely match the patient's fractured bone. In practice, multiple fracture fragments are directly grasped and moved in the operating room to perform reduction and internal fixation using common plates, but this has the following problem, that is, common plates are not suitable for the reduced bones.

[0007] Existing plates and screws are common medical devices that have been standardized, and are manufactured and sold in different sizes and lengths based on the average shape in a manner that takes the average shape of human bones into consideration. During surgery, after the patient's bones are actually restored, plates of various specifications and the restored bones are compared to use the plate with the most similar shape and size.

[0008] However, even if the plates are standardized with an average value, most plates cannot be precisely matched to the patient's bone shape, which makes surgery very difficult. For example, the surface curvature or three-dimensional distortion of the bone cannot be reflected by the plate, or the position of the plate's fixing holes is not suitable for the fracture fragments, which will make it impossible to insert screws into the fracture fragments. Therefore, in some cases, it will be difficult to use the plate for internal fixation, and if the internal fixation is wrong, it may be impossible to restore the original shape of the bone or the bone may not adhere to the non-union phenomenon. Summary of the invention

[0009] Technical issues

[0010] The object of the present invention is to provide a method and device for generating a virtual internal fixation object based on image reduction, that is, a virtual internal fixation object can be generated based on the content of bone reduction on an image, thereby making a customized internal fixation object suitable for a patient.

[0011] Furthermore, another object of the present invention is to provide a method and apparatus for generating a virtual internal fixation object based on image reduction, that is, the position and direction of a fixing hole for inserting a fixing component can be adjusted based on the content of bone reduction in an image.

[0012] Technical Solution

[0013] In order to achieve the above-mentioned object, the present invention provides a method for generating a virtual internal fixator based on image restoration, which comprises the following steps: identifying the positions and shapes of multiple fracture fragments from a fracture medical image including a fracture site; judging the matching of the multiple fracture fragments by analyzing the shapes of the multiple fracture fragments; performing image restoration of the fracture site by moving the positions of the multiple fracture fragments based on the matching; and generating a virtual internal fixator for fixing the fracture site restored by image restoration.

[0014] The step of identifying the positions and shapes of multiple fracture fragments may include the following steps: selecting multiple regions of interest from the fracture medical image; and extracting features of the multiple regions of interest.

[0015] Furthermore, in the step of identifying the positions and shapes of the plurality of bone fracture fragments, the shapes and positions of the plurality of bone fracture fragments may be identified by analyzing the features of the plurality of regions of interest.

[0016] Furthermore, the step of determining the matching of multiple fracture fragments may include the following steps: analyzing the ridges and fracture lines of multiple fracture fragments; selecting a pair of matching fracture fragments with the highest matching of ridges and fracture lines from the multiple fracture fragments; and calculating the matching vectors of multiple vertices respectively contained in the fracture lines of a pair of matching fracture fragments and corresponding to each other.

[0017] Furthermore, in the step of performing image restoration on the fracture site, the image restoration on the fracture site may be performed by moving at least one of the matching vectors of a plurality of vertices corresponding to each other.

[0018] Furthermore, the step of generating a virtual internal fixator may include the following steps: generating a plate body, the plate body being in contact with the surface of the fracture site restored by imaging; and forming a fixing hole, the fixing hole being used to insert a fixing component into the fracture site and the plate body.

[0019] Furthermore, in the step of forming the fixing hole, the position and direction of inserting the fixing component can be determined based on the fracture site restored by imaging, and the fixing hole can be formed.

[0020] Furthermore, in the step of forming the fixation holes, the fixation holes may be formed in areas outside the boundaries of the plurality of fracture fragments based on the fracture site restored by imaging.

[0021] Furthermore, the present invention provides a virtual internal fixation device generating device based on image restoration, which comprises: a fracture fragment recognition unit, which recognizes the positions and shapes of a plurality of fracture fragments from a fracture medical image including a fracture site; a matching judgment unit, which judges the matching of the plurality of fracture fragments by analyzing the shapes of the plurality of fracture fragments; an image restoration unit, which moves the positions of the plurality of fracture fragments based on the matching to perform image restoration on the fracture site; and a virtual internal fixation device generating unit, which generates a virtual internal fixation device, wherein the virtual internal fixation device is used to fix the fracture site restored by image restoration.

[0022] The fracture fragment identification unit may include: a region of interest selection unit for selecting a plurality of regions of interest from the fracture medical image; and a feature extraction unit for extracting features of the plurality of regions of interest.

[0023] Furthermore, the bone fracture fragment identification unit may identify the shapes and positions of the plurality of bone fracture fragments by analyzing the features of the plurality of regions of interest.

[0024] Furthermore, the matching judgment unit may include: a shape analysis unit, used to analyze the ridges and fracture lines of multiple fracture fragments; a matching fracture fragment selection unit, used to select a pair of matching fracture fragments with the highest matching ridges and fracture lines from multiple fracture fragments; and a matching vector calculation unit, used to calculate the matching vectors of multiple vertices that are respectively included in the fracture lines of a pair of matching fracture fragments and correspond to each other.

[0025] Furthermore, the image restoration unit may perform image restoration on the fracture site by moving at least one of the matching vectors of a plurality of vertices corresponding to each other.

[0026] Furthermore, the virtual internal fixation device generating unit may include: a plate body generating unit for generating a plate body, wherein the plate body contacts the surface of the fracture site restored by imaging; and a fixing hole forming unit for forming a fixing hole, wherein the fixing hole is used to insert a fixing component into the fracture site and the plate body.

[0027] Furthermore, the fixing hole forming unit may determine the position and direction of inserting the fixing component and form the fixing hole based on the fracture site restored by imaging.

[0028] Furthermore, the fixing hole forming unit may form the fixing holes in the area outside the boundaries of the plurality of fracture fragments based on the fracture site restored by imaging.

[0029] Effects of the Invention

[0030] The present invention has the following effects, that is, by performing reduction on images, the number, position and shape of fracture fragments can be grasped before the actual reduction operation is performed, and the movement position of each fracture fragment used for reduction can be grasped. In addition, when the reduction operation is successfully completed, the shape of the bone can be grasped.

[0031] This not only improves the convenience of the surgeon, but also shortens the time spent on the surgery plan, improves the accuracy of the surgery plan, and makes it easier to explain the customized surgery plan to the patient before the surgery.

[0032] Furthermore, the present invention generates a virtual internal fixation device based on the content of bone reduction on the image and actually manufactures the internal fixation device therefrom, so that a customized internal fixation device suitable for the patient can be manufactured. Furthermore, the position and direction of the fixing hole for inserting the fixing component can be adjusted based on the image reduction, so when the operation is difficult, that is, in the case of multiple fracture fragments or irregular shapes of fracture fragments such as comminuted fractures, the fixing component can be inserted into each fracture fragment, and the bone can be naturally restored to its original shape by making the customized plate fit the fracture fragment, thereby shortening the operation time, and ultimately improving the success rate of the operation and reducing the non-union rate.

[0033] The effects that can be obtained by the present invention are not limited to the effects mentioned above, and a person skilled in the art can clearly understand other effects that are not mentioned through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 FIG. 4 is a simplified block diagram of a virtual internal fixation object generation device based on image restoration according to an embodiment of the present invention.

[0035] Figure 2 This is a specific block diagram of a fracture fragment identification unit according to an embodiment of the present invention.

[0036] Figure 3 The diagram is used to illustrate a process of generating a fracture fragment identification image from a fracture medical image according to an embodiment of the present invention.

[0037] Figure 4 It is a specific block diagram of the matching judgment unit in an embodiment of the present invention.

[0038] Figure 5 The figure is used to illustrate the process of converting the bone fracture fragment recognition image into the repair medical image according to the embodiment of the present invention.

[0039] Figure 6 FIG. 4 is a specific block diagram of a virtual internal fixture generating unit according to an embodiment of the present invention.

[0040] Figure 7 FIG. 4 is a diagram for explaining a process of generating a virtual internal fixture according to an embodiment of the present invention.

[0041] Figure 8 The figure is a flow chart of a method for generating a virtual internal fixation object based on image restoration according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] Hereinafter, embodiments of the present invention will be described in further detail with reference to the accompanying drawings. In this case, the same reference numerals are assigned to the same structural elements in the accompanying drawings as much as possible. In addition, detailed descriptions related to known functions and structures that may confuse the main purpose of the present invention are omitted.

[0043] In the embodiments of the present invention, each structural element may be composed of one structural element or more than one subordinate structural elements. The electrical function, electronic function and mechanical function performed by each structural element may be realized by a variety of well-known devices or mechanical elements such as electronic circuits, integrated circuits and application-specific integrated circuits (ASICs). They may form single structural elements respectively or be composed of two or more structural elements.

[0044] Figure 1 FIG. 4 is a simplified block diagram of a virtual internal fixation object generation device based on image restoration according to an embodiment of the present invention.

[0045] like Figure 1 As shown, the virtual internal fixation object generation device based on image restoration according to the embodiment of the present invention may include a fracture fragment recognition unit 110, a matching judgment unit 120, an image restoration unit 130 and a virtual internal fixation object generation unit 140.

[0046] Figure 2 is a specific block diagram of a bone fracture identification unit according to an embodiment of the present invention, Figure 3 The diagram is used to illustrate a process of generating a fracture fragment identification image from a fracture medical image according to an embodiment of the present invention.

[0047] Reference Figure 3 The fracture fragment identification unit 110 identifies the positions and shapes of multiple fracture fragments from the fracture medical image including the fracture site.

[0048] like Figure 2 As shown, the fracture fragment identification unit 110 may include a fracture medical image acquisition unit 111 , a region of interest selection unit 112 and a feature extraction unit 113 .

[0049] The fracture medical image acquisition unit 111 is used to acquire the fracture medical image of the patient. That is, the fracture medical image acquisition unit 111 can receive the fracture medical image of the fracture site of the patient by communicating with an image shooting device (not shown). The fracture medical image can be two-dimensional medical image data and three-dimensional medical image data shot by a variety of image shooting devices including an X-ray (X-Ray) image shooting device, a computed tomography (CT) image shooting device, and a magnetic resonance image (MRI) image shooting device.

[0050] The region of interest selection unit 112 can select multiple regions of interest from the fracture medical image of the patient acquired by the fracture medical image acquisition unit 111. The regions of interest are regions in the fracture medical image where fracture fragments are likely to be located, and can be selected using a variety of image analysis algorithms.

[0051] The feature extraction unit 113 is used to extract features of multiple regions of interest, and the bone fracture identification unit 114 identifies the shapes and positions of multiple bone fracture fragments by analyzing the features of multiple regions of interest.

[0052] Specifically, the fracture fragment identification unit 114 uses a learning model to learn the features of multiple fracture fragments in advance, and can detect the shape and position of the fracture fragments by comparing the features of the patient's area of ​​interest extracted by the feature extraction unit 113 with the features of the learned fracture fragments.

[0053] Figure 4 is a specific block diagram of a matching determination unit according to an embodiment of the present invention. Figure 5 The figure is used to illustrate the process of converting the bone fracture fragment recognition image into the repair medical image according to the embodiment of the present invention.

[0054] Reference Figure 4 and Figure 5The matching determination unit 120 determines the matching of the multiple fracture fragments by analyzing the shapes of the multiple fracture fragments.

[0055] like Figure 4 As shown, the matching determination unit 120 may include a shape analysis unit 121 , a matching fracture fragment selection unit 122 , and a matching vector calculation unit 123 .

[0056] The shape analysis unit 121 is used to analyze the ridges and fracture lines of multiple fracture fragments. The ridges of the fracture fragments refer to the parts exposed to the outside before the fracture, and the fracture lines of the fracture fragments refer to the parts exposed to the outside after the fracture. On the other hand, the ridges and fracture lines of the fracture fragments are used as expressions when the fracture medical image is two-dimensional medical image data. When the fracture medical image is three-dimensional medical image data, the ridges and fracture lines of the fracture fragments can represent the ridge surface and fracture surface of the fracture fragments.

[0057] The matching fracture fragment selection unit 122 is used to select a pair of matching fracture fragments with the highest matching of ridge lines and fracture lines from a plurality of fracture fragments.

[0058] That is, the matching fracture fragment selection unit 122 can use the learning model to learn the ridgelines of multiple normal bones without fractures in advance. Moreover, the matching of the ridgelines of the fracture fragments can be determined by comparing the ridgelines of the fracture fragments matched by matching the multiple fracture fragments with the ridgelines of the learned normal bones.

[0059] Furthermore, the matching fracture fragment selection unit 122 can determine the matching of the fracture lines of the fracture fragments by comparing whether the bifurcations between the fracture lines of the matched fracture fragments are consistent by matching a plurality of fracture fragments respectively.

[0060] As described above, the matching fracture fragment selection unit 122 selects a pair of matching fracture fragments by determining the matching of the ridge lines and fracture lines of the plurality of fracture fragments.

[0061] On the other hand, although only one pair of matching fracture fragments is selected in the case of a light fracture, a plurality of matching fracture fragments may be selected in the case of a comminuted fracture.

[0062] The matching vector calculation unit 123 is used to select multiple vertices (Vertex) respectively included in the fracture lines of a pair of matching fracture fragments and corresponding to each other and calculate the matching vectors (Matching Vector) of the selected multiple vertices. When the fracture medical image is a two-dimensional medical image data, the matching vector is composed of an x-coordinate and a y-coordinate; when the fracture medical image is a three-dimensional medical image data, the matching vector is composed of an x-coordinate, a y-coordinate, and a z-coordinate.

[0063] The image restoration unit 130 performs image restoration on the fracture site by moving the positions of the plurality of fracture fragments based on the matching determined by the matching determination unit 120. That is, the image restoration unit 130 performs image restoration on the fracture site by moving the positions of a pair of matching fracture fragments selected by the matching fracture fragment selection unit 122.

[0064] Specifically, the image restoration unit 130 performs image restoration on the fracture site by moving at least one of the matching vectors of the corresponding multiple vertices calculated by the matching vector calculation unit 123. For example, the image restoration of the fracture site can be performed by moving the matching vector of one vertex among the corresponding multiple vertices to the matching vector of another vertex. In the above-mentioned movement process, the matching fracture fragments can also be rotated at a specified angle and moved.

[0065] Different from this, the image restoration unit 130 can also allow the operator to directly move the positions of the plurality of fracture fragments on the image to perform image restoration on the fracture site based on the matching determined by the matching determination unit 120. That is, the operator can move the positions of the plurality of fracture fragments by clicking the fracture fragment on the image with a mouse and dragging it to the target moving position, thereby performing image restoration on the fracture site.

[0066] As described above, the virtual internal fixation device based on image restoration in the embodiment of the present invention can grasp the number, position and shape of fracture fragments and the moving position of each fracture fragment used for restoration before the actual restoration operation by performing restoration on the image. In addition, when the restoration operation is successfully completed, the shape of the bone can be grasped.

[0067] This not only improves the convenience of the surgeon, but also shortens the time spent on the surgery plan and improves the accuracy of the surgery plan. In addition, the customized surgery plan can be explained to the patient in a simpler and easier way before the surgery.

[0068] Figure 6 is a specific block diagram of a virtual internal fixture generating unit according to an embodiment of the present invention. Figure 7 FIG. 4 is a diagram for explaining a process of generating a virtual internal fixture according to an embodiment of the present invention.

[0069] Reference Figure 7 The virtual internal fixer generation unit 140 generates a virtual internal fixer, which is used to fix the fracture site restored by imaging. The virtual internal fixer refers to a virtual internal fixer simulated by imaging before making an actual internal fixer used to fix the actual fracture site restored by imaging.

[0070] The virtual internal fixation object may be at least one of a virtual plate, a virtual metal pin, and a virtual intramedullary nail. Hereinafter, the case where the virtual internal fixation object is a virtual plate will be described as an example, but the present invention is not limited thereto.

[0071] Specifically, Figure 6 As shown, the virtual internal fixture generating part 140 may include a plate body generating part 141 and a fixing hole forming part 142 .

[0072] The plate body generating unit 141 is used to generate a plate body, which is in contact with the surface of the fractured part restored by imaging, wherein the plate body can be formed into a shape of a bone surrounding the fractured part.

[0073] On the other hand, in order to fix the plate body to the fracture site, a separate fixing member (for example, a screw) is required, and a fixing hole for inserting the fixing member into the fracture site and the plate body needs to be formed above the plate body.

[0074] For this purpose, the fixing hole forming portion 142 forms a fixing hole for inserting a fixing member into the fracture site and the plate body.

[0075] In particular, the fixing hole forming portion 142 is characterized in that the position and direction of inserting the fixing member are determined based on the fracture site restored by imaging and the above-mentioned fixing hole is formed.

[0076] Specifically, the fixing hole forming part 142 forms the fixing holes in the area outside the boundaries of the multiple fracture fragments based on the fracture site restored by imaging. Thus, the fixing holes are formed in the boundary areas of the multiple fracture fragments, and the problem of not being able to firmly fix the plate body at the fracture site can be eliminated by inserting the fixing parts into the fixing holes formed in the above manner.

[0077] As described above, the virtual internal fixation device based on image restoration of the embodiment of the present invention generates a virtual internal fixation based on the content of the bone restoration on the image and actually manufactures the internal fixation, so that a customized internal fixation suitable for the patient can be manufactured. In addition, the position and direction of the fixing hole for inserting the fixing component can be adjusted based on the image restoration, so when the operation is difficult, that is, in the case of multiple fracture fragments or irregular shapes of fracture fragments such as comminuted fractures, the fixing component can be inserted into each fracture fragment, and the bone can be naturally restored to its original shape by making the customized plate fit the fracture fragment, thereby shortening the operation time, and ultimately improving the success rate of the operation and reducing the non-union rate.

[0078] Figure 8 The figure is a flow chart of a method for generating a virtual internal fixation object based on image restoration according to an embodiment of the present invention.

[0079] Below, refer to Figures 1 to 8 The method for generating a virtual internal fixture based on image restoration according to an embodiment of the present invention will be described, however, the contents identical to those of the apparatus for generating a virtual internal fixture based on image restoration according to the embodiment of the present invention described above will be omitted.

[0080] like Figure 8 As shown, the method for generating a virtual internal fixator based on image restoration according to an embodiment of the present invention may include the following steps: step S10, identifying the positions and shapes of multiple fracture fragments from a fracture medical image including a fracture site; step S20, determining the matching of the multiple fracture fragments by analyzing the shapes of the multiple fracture fragments; step S30, moving the positions of the multiple fracture fragments based on the matching to perform image restoration on the fracture site; and step S40, generating a virtual internal fixator for fixing the fracture site restored by image restoration.

[0081] The step S10 of identifying the positions and shapes of the plurality of fracture fragments may include the following steps: selecting a plurality of regions of interest from the fracture medical image; and extracting features of the plurality of regions of interest.

[0082] In the step S10 of identifying the positions and shapes of the plurality of bone fracture fragments, the shapes and positions of the plurality of bone fracture fragments may be identified by analyzing the features of the plurality of regions of interest.

[0083] Step S20 of determining the compatibility of multiple fracture fragments may include the following steps: analyzing the ridges and fracture lines of multiple fracture fragments; selecting a pair of matching fracture fragments with the highest matching ridges and fracture lines from the multiple fracture fragments; and calculating the matching vectors of multiple vertices that are respectively contained in the fracture lines of a pair of matching fracture fragments and correspond to each other.

[0084] In step S30 of performing image restoration on the fracture site, the image restoration on the fracture site may be performed by moving at least one of the matching vectors of a plurality of mutually corresponding vertices.

[0085] Different from this, in step S30 of image restoration of the fractured part, the surgeon can also directly move the positions of the multiple fractured fragments on the image based on the matching of the multiple fractured fragments to perform image restoration of the fractured part. That is, the surgeon can click the fractured fragment on the image with a mouse and move the positions of the multiple fractured fragments by dragging them to the target moving position, thereby performing image restoration of the fractured part.

[0086] As described above, the method for generating a virtual internal fixation object based on image restoration in the embodiment of the present invention can grasp the number, position and shape of fracture fragments and the moving position of each fracture fragment used for restoration before the actual restoration operation by performing restoration on the image. In addition, when the restoration operation is successfully completed, the shape of the bone can be grasped.

[0087] This not only improves the convenience of the surgeon, but also shortens the time spent on the surgery plan and improves the accuracy of the surgery plan. In addition, the customized surgery plan can be explained to the patient in a simpler and easier way before the surgery.

[0088] The step S40 of generating a virtual internal fixator may include the following steps: generating a plate body, the plate body being in contact with the surface of the fracture site restored by imaging; and forming a fixing hole, the fixing hole being used to insert a fixing component into the fracture site and the plate body.

[0089] In the step of forming the fixing hole, the position and direction of inserting the fixing component can be determined based on the fracture site restored by imaging to form the fixing hole.

[0090] Furthermore, in the step of forming the fixation holes, the fixation holes may be formed in areas outside the boundaries of the plurality of fracture fragments based on the fracture site restored by imaging.

[0091] As described above, the method for generating a virtual internal fixer based on image restoration of an embodiment of the present invention generates a virtual internal fixer based on the content of the bone restoration on the image and actually manufactures the internal fixer, so a customized internal fixer suitable for the patient can be manufactured. In addition, the position and direction of the fixing hole for inserting the fixing component can be adjusted based on the image restoration, so when the operation is difficult, that is, in the case of multiple fracture fragments or irregular shapes of fracture fragments such as comminuted fractures, the fixing component can be inserted into each fracture fragment, and the bone can be naturally restored to its original shape by making the customized plate fit the fracture fragment, thereby shortening the operation time, and ultimately improving the success rate of the operation and reducing the non-union rate.

[0092] On the other hand, the multiple embodiments of the present invention disclosed in this specification and the drawings are only used to illustrate specific examples, so as to simply and easily explain the technical content of the present invention and help understand the present invention, and are not used to limit the scope of the present invention. That is, it is obvious that a person skilled in the art of the present invention can implement other variations based on the technical idea of ​​the present invention.

Claims

1. A virtual internal fixation image generation device based on image restoration, characterized in that: include: A fracture fragment identification unit selects a plurality of focus areas from the fracture medical image including the comminuted fracture site, and identifies the positions and shapes of the plurality of fracture fragments by analyzing the features of the plurality of focus areas; A matching judgment unit, which judges the matching of the ridges and fracture lines of the plurality of fracture fragments respectively by analyzing the shapes of the plurality of fracture fragments; An image restoration unit moves the positions of the plurality of fracture fragments based on the matching of the ridge line and the fracture line to perform image restoration on the fracture site; and A virtual internal fixation object image generating unit generates a virtual internal fixation object image, wherein the virtual internal fixation object image is used to fix the fractured part restored by the image. The image restoration unit performs image restoration on the fracture site by moving at least one of a pair of matching fracture fragments that have the highest matching between the ridge line and the fracture line. The virtual internal fixed object image generating unit comprises: A plate body generating unit, used for generating a plate body, wherein the plate body contacts the surface of the fracture site restored by imaging; and The fixing hole forming part is used to form a fixing hole, and the fixing hole is used to insert a fixing component into the fracture site and the plate body. The fixing hole forming unit forms the fixing hole in a region outside the boundary of the plurality of fracture fragments based on the fracture site restored by imaging. The matching determination unit includes: a shape analysis unit, configured to analyze ridges and fracture lines of the plurality of fracture fragments; and The matching fracture fragment selection unit is used to select a pair of matching fracture fragments with the highest matching between the ridge line and the fracture line from the multiple fracture fragments.

2. The virtual internal fixation image generation device based on image restoration according to claim 1, characterized in that: The fracture fragment identification unit includes: A region of interest selection unit selects a plurality of regions of interest from the fracture medical image; and The feature extraction unit is used to extract the features of the above-mentioned multiple focus areas.

3. The virtual internal fixation image generation device based on image restoration according to claim 1, characterized in that: The matching determination unit further includes: The matching vector calculation unit is used to calculate the matching vectors of a plurality of vertices respectively included in the fracture lines of the pair of matching fracture fragments and corresponding to each other.

4. The virtual internal fixation image generation device based on image restoration according to claim 3, characterized in that: The image restoration unit performs image restoration on the fracture site by moving at least one of the matching vectors of the plurality of vertices corresponding to each other.

5. The virtual internal fixation image generation device based on image restoration according to claim 1, characterized in that: The fixing hole forming unit determines the position and direction of inserting the fixing member based on the fracture site restored by imaging and forms the fixing hole.

Images