Fracture fixing device

Abstract

The utility model provides a fracture fixing device, relates to the technical field of medical instruments, and is used for solving the problems that a damaged joint and a damaged bone connected to the damaged joint cannot be fixed at the same time, and trauma recovery of a patient is influenced, the fracture fixing device comprises at least one bone fixing assembly, a joint fixing piece and a connecting piece, the connecting piece is arranged between the bone fixing assembly and the joint fixing piece and used for connecting the bone fixing assembly and the joint fixing piece. The bone fixing assembly comprises two first bone fixing pieces, and the two first bone fixing pieces are arranged on the two opposite sides of the damaged position of a to-be-fixed bone and fixedly connected with the to-be-fixed bone. The joint fixing piece is fixed to the joint of the two adjacent to-be-fixed bones. The fracture fixing device can fix the damaged joint and the skeleton connected with the damaged joint at the same time, is suitable for normal movement of the joint, and meets the requirement for healing of different wound parts of a patient.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a fracture fixation device. Background Art

[0002] A fracture fixation device is a medical device used to treat fractures. Its main function is to stabilize and fix the fracture site to promote bone healing. Currently, common fracture fixation devices include internal fixation devices, external fixation devices, and functional braces.

[0003] Orthopedic external fixators insert screws or pins into bones through the skin and soft tissues and connect them through an external frame. This device is often used for open fractures or fractures that need adjustment. It is made of metal materials and usually consists of an external fixator and bone pins. The external fixator mainly consists of one or more steel rings, support rods and connecting rods. The steel rings bypass the injured part and are fixed under the skin. They are connected to the external fixation frame through connecting rods and support rods. The design of the external fixator can be adjusted according to different fracture types and injured parts.

[0004] However, this traditional fracture fixation device can only fix a single fractured bone. When the joint is injured and the bones connecting the joint are damaged, it cannot fix the damaged joint and the damaged bone at the same time, and cannot adapt to the normal activities of the bone joints, affecting the patient's trauma recovery. Utility Model Content

[0005] The present application provides a fracture fixation device that can simultaneously fix the joint and the bones connected to the joint, adapt to the normal movement of the joint, and meet the healing needs of different injured parts of the patient.

[0006] The present application provides a fracture fixation device, comprising: at least one bone fixation assembly, a joint fixation piece and a connecting piece, wherein the connecting piece is arranged between the bone fixation assembly and the joint fixation piece, and is used to connect the bone fixation assembly and the joint fixation piece; wherein the bone fixation assembly and the joint fixation piece can rotate relative to each other; the bone fixation assembly comprises two first bone fixations, and the two first bone fixations are configured to be arranged on opposite sides of a damaged position of a bone to be fixed, and are fixedly connected to the bone to be fixed; and the joint fixation piece is fixed at the joint of two adjacent bones to be fixed.

[0007] As in the above-mentioned fracture fixation device, there are two bone fixation components, and the two bone fixation components are symmetrically arranged on opposite sides of the joint fixation component and connected to the connecting component.

[0008] As in the fracture fixation device described above, the bone fixation assembly further comprises a fixing bracket, and the first bone fixation member is inserted into the fixing bracket along a first direction and movably connected to the fixing bracket so that the first bone fixation member can be lifted and moved relative to the fixing bracket in the first direction.

[0009] For the fracture fixation device as described above, the fixing bracket includes a base, a connecting plate, and a support rod. The base and the connecting plate are respectively disposed at opposite ends of the support rod, and the support rod surrounds the outer peripheral side of the first bone fixing member.

[0010] The base is disposed near one end of the bone to be fixed. The base is configured to abut against the bone to be fixed. The base has a mounting hole, and the first bone fixing member passes through the mounting hole and is connected to the bone to be fixed.

[0011] For the tower barrel structure as described above, a first driving mechanism is disposed inside the connecting plate. The first driving mechanism is disposed between two first bone fixing members for driving the two first bone fixing members to move up and down in a first direction.

[0012] For the fracture fixation device as described above, the first driving mechanism includes two first transmission gears and a first driving gear. The first bone fixing member is fixedly connected to the first transmission gear.

[0013] The first driving gear is disposed between the two first transmission gears. The first driving gear meshes with the two first transmission gears for driving the two first bone fixing members to respectively rotate around their own axes in opposite directions.

[0014] For the fracture fixation device as described above, the bone fixing assembly further includes at least one second bone fixing member and a fixing member. The second bone fixing member is connected to the fixing member, and the fixing member is horizontally disposed through the fixing bracket. The second bone fixing member is configured to be fixedly connected to the bone to be fixed.

[0015] For the fracture fixation device as described above, there are two second bone fixing members and fixing members. The two second bone fixing members are correspondingly disposed with the two fixing members, and the two fixing members are spaced apart in the vertical direction.

[0016] For the fracture fixation device as described above, a second driving mechanism is disposed between the two fixing members. The second driving mechanism is configured to drive the two fixing members to move axially along the bone to be fixed.

[0017] For the fracture fixation device as described above, the second driving mechanism includes a rack, a second driving gear, and a second transmission gear. The rack is disposed on the fixing member. The second driving gear is disposed between the two fixing members, and the second driving gear meshes with the rack for driving the rack to move axially along the fixing member. The second bone fixing member is fixedly disposed on the second transmission gear. The second transmission gear meshes with the rack, and the second transmission gear is configured to drive the second bone fixing member to rotate around its own axis.

[0018] The present application provides a fracture fixation device, comprising: at least one bone fixation component, a joint fixation member, and a connecting member. The connecting member is disposed between the bone fixation component and the joint fixation member for connecting the bone fixation component and the joint fixation member. The bone fixation component includes two first bone fixation members, and the two first bone fixation members are configured to be disposed on opposite sides of the damaged position of the bone to be fixed and fixedly connected to the bone to be fixed. The joint fixation member is fixed at the joint of two adjacent bones to be fixed. Thus, it can be seen that in the present application, the damaged bone is fixed by using the bone fixation component, the damaged joint is fixed by using the joint fixation member, and the bone fixation component and the joint fixation member are connected by using the connecting member, so as to synchronously fix the bone fixation component and the joint fixation member, adapt to the normal movement of the joint, and provide greater convenience while meeting the healing of different traumatized parts of the patient.

[0019] The structure of a fracture fixation device provided by the present application, as well as its other application purposes and beneficial effects, will become more obvious and understandable through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a fracture fixation device provided by an embodiment of the present application.

[0021] DESCRIPTION OF REFERENCE NUMERALS:

[0022] 10 - fracture fixation device;

[0023] 100 - bone fixation component;

[0024] 110 - first bone fixation member;

[0025] 120 - fixing bracket;

[0026] 121 - base;

[0027] 122 - connecting plate;

[0028] 123 - support rod;

[0029] 130 - first driving mechanism;

[0030] 131 - first transmission gear;

[0031] 132 - first driving gear;

[0032] 140 - second bone fixation member;

[0033] 150 - fixing member;

[0034] 160 - second driving mechanism;

[0035] 161 - rack;

[0036] 162 - Second driving gear;

[0037] 163 - Second transmission gear;

[0038] 200 - Joint fixing piece;

[0039] 300 - Connecting piece;

[0040] 400 - Bone. Detailed implementation manner

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0042] A fracture fixation device is a medical device used for treating fractures, and its main function is to stabilize and fix the fracture site to promote bone healing. Currently, common fracture fixation devices include internal fixation devices, external fixation devices, and functional braces.

[0043] An orthopedic external fixation bracket inserts screws or pins into the bone through the skin and soft tissues and is connected by an external frame. This device is commonly used for open fractures or fractures that require adjustment. It is made of metal materials and usually consists of an external fixator and bone pins. The external fixator mainly consists of one or more steel rings, support rods, and connecting rods. The steel ring bypasses the injured part and is fixed under the skin, and is connected to the external fixation frame through the connecting rod and the support rod. The design of the external fixator can be adjusted according to different fracture types and injured parts.

[0044] However, this traditional fracture fixation device can only be fixed on a single fractured bone. When there is joint injury and the bones connecting the joint are damaged, it is impossible to fix the damaged joint and the damaged bones simultaneously, and it cannot adapt to the normal activities of the bone joint, affecting the trauma recovery of the patient.

[0045] Therefore, the present application provides a fracture fixation device that fixes the damaged bone by using a bone fixation component, fixes the damaged joint by using a joint fixing piece; and connects the bone fixation component and the joint fixing piece into an integrated body by using a connecting piece; compared with the traditional fracture fixation device, this device can fix the damaged joint and the bones connecting the joint simultaneously, adapt to the normal activities of the joint, and meet the healing of different trauma parts of the patient.

[0046] The following further elaborates on a fracture fixation device in this embodiment.

[0047] Figure 1 It is a schematic structural diagram of a fracture fixation device provided by an embodiment of the present application.

[0048] As Figure 1 shown, an embodiment of the present application provides a fracture fixation device 10, including: at least one bone fixation component 100, a joint fixation member 200, and a connecting member 300. The connecting member 300 is disposed between the bone fixation component 100 and the joint fixation member 200 and is used to connect the bone fixation component 100 and the joint fixation member 200. Among them, the bone fixation component 100 and the joint fixation member 200 can rotate relative to each other. The purpose of such a setting is to provide greater flexibility and adaptability, and can also disperse stress, reduce stress concentration at the fixation point, thereby reducing the risk of fracture or other injuries.

[0049] Among them, one end of the connecting member 300 is screwed into the bone fixation component 100, and the other end is connected to the joint fixation member 200 through a rotating connecting member. In this embodiment, the types of the rotating connecting member include, but are not limited to, spherical joints, rotary bearings, universal joints, etc.

[0050] Among them, in order to adapt to fracture conditions at different positions of the bone 400, the type of the connecting member 300 is a telescopic member. Specifically, the operator can adjust the position of the bone fixation component 100 according to the actual situation, so that the two first bone fixation members 110 are respectively located at opposite ends of the fracture position of the bone 400 to fix the fracture position.

[0051] The bone fixation component 100 includes two first bone fixation members 110, and the two first bone fixation members 110 are configured to be disposed on opposite sides of the damaged position of the bone 400 to be fixed and fixedly connected to the bone 400 to be fixed. The joint fixation member 200 is fixed at the joint of two adjacent bones 400 to be fixed.

[0052] Among them, as an optional implementation manner, the type of the first bone fixation member 110 is a threaded pin. When fixing, the threaded pin is inserted into the bone shaft, and a fixing bracket 120 is used for fixation outside the trauma site. Using this fixing method has a better correction effect, can avoid displacement, and can achieve the expected fixation effect.

[0053] Among them, as an optional implementation manner, the type of the joint fixation member 200 is an intramedullary nail. When fixing, first, a special bone drill is used to drill a hole at a predetermined position, then a depth measuring instrument is used to measure the depth of the drilled hole to select a screw of an appropriate length, and finally, the intramedullary nail is inserted into the joint, and a wrench or power tool is used to tighten the intramedullary nail.

[0054] In this way, the damaged bone 400 is fixed by using the bone fixation assembly 100, and the damaged joint is fixed by using the joint fixation member 200; the bone fixation assembly 100 and the joint fixation member 200 are connected into an integral body by using the connecting member 300; compared with the traditional fracture fixation device, this device can fix the damaged joint and the bone connecting the joint at the same time, adapt to the normal activities of the joint, and meet the healing of different traumatized parts of the patient.

[0055] In some embodiments, there are two bone fixation assemblies 100, and the two bone fixation assemblies 100 are symmetrically arranged on opposite sides of the joint fixation member 200 and connected to the connecting member 300, as Figure 1 shown.

[0056] Among them, as an alternative embodiment, the bone fixation assembly 100 and the joint fixation member 200 are integrally formed. The purpose of this setting is to have higher strength, adapt to the scenario where fractures occur in the tibia, femur and knee joint, and can fix the damaged joint and the bone connected to the damaged joint at the same time.

[0057] Among them, as another alternative embodiment, the bone fixation assembly 100 and the joint fixation member 200 are detachably connected. The purpose of this setting is to enable the combination and configuration of the bone fixation assembly 100 and the joint fixation member 200 to meet different requirements, and to facilitate later maintenance and replacement.

[0058] In some embodiments, the bone fixation assembly 100 further includes a fixing bracket 120. The first bone fixation member 110 is disposed in the fixing bracket 120 along a first direction and is movably connected to the fixing bracket 120, so that the first bone fixation member 110 can move up and down relative to the fixing bracket 120 in the first direction.

[0059] Among them, as Figure 1 shown, the first direction is the vertical direction. When the first bone fixation member 110 moves downward along the vertical direction, the first bone fixation member 110 extends into the bone 400; when the first bone fixation member 110 moves upward along the vertical direction, the first bone fixation member 110 is removed from the bone 400.

[0060] In some embodiments, the fixing bracket 120 includes a base 121, a connecting plate 122 and a support rod 123. The base 121 and the connecting plate 122 are respectively disposed at opposite ends of the support rod 123, and the support rod 123 surrounds the outer peripheral side of the first bone fixation member 110;

[0061] The base 121 is disposed at one end close to the bone 400 to be fixed. The base 121 is configured to abut against the bone 400 to be fixed. The base 121 has a mounting hole, and the first bone fixation member 110 passes through the mounting hole and is connected to the bone 400 to be fixed.

[0062] Among them, a fitting member is provided on the base 121. By closely fitting the fracture position, the fitting member provides additional support and stability, helps to keep the fracture ends in the correct position, and promotes bone healing. In addition, the fitting member can serve as a buffer layer to reduce the compression and friction of the fixing bracket 120 on the fracture site and the surrounding soft tissues.

[0063] Among them, the material of the fitting member can be soft materials such as silicone and foam, or it can be an antibacterial material. The present implementation does not limit the material of the fitting member.

[0064] Among them, the support rod 123 can be threadedly connected to the base 121 and the connecting plate 122, or it can be integrally formed with the base 121 and the connecting plate 122. Specifically, the support rod 123 has a hollow cavity, and the first bone fixing member 110 is inserted into the hollow cavity to play a guiding role, so that the first bone fixing member 110 can be more accurately positioned and fixed to the bone 400. In addition, setting the support rod 123 as a hollow cavity can also significantly reduce the self-weight of the support rod 123, reduce the burden on the patient, and improve the wearing comfort.

[0065] In some embodiments, a first driving mechanism 130 is provided in the connecting plate 122. The first driving mechanism 130 is disposed between the two first bone fixing members 110 and is used to drive the two first bone fixing members 110 to move up and down in the first direction.

[0066] Among them, the two first bone fixing members 110 can rotate synchronously around their own axes under the drive of the first driving mechanism 130, so that the first bone fixing members 110 are screwed into the bone 400. Specifically, the rotation speed of the first bone fixing member 110 can be controlled by the first driving mechanism 130, so that the first bone fixing member 110 is screwed into the bone 400 at a stable speed, reducing damage to the surrounding tissues.

[0067] In some embodiments, the first driving mechanism 130 includes two first transmission gears 131 and a first driving gear 132. The first bone fixing member 110 is fixedly connected to the first transmission gear 131;

[0068] The first driving gear 132 is disposed between the two first transmission gears 131. The first driving gear 132 meshes with the two first transmission gears 131 and is used to drive the two first bone fixing members 110 to rotate around their own axes in opposite directions respectively.

[0069] Among them, as Figure 1As shown, the first driving gear 132 is detachably connected to the driving motor. When fixing the first bone fixing member 110, the output shaft of the driving motor is connected to the first driving gear 132, and the driving motor drives the first driving gear 132 to rotate, so that the two first transmission gears 131 meshing with the first driving gear 132 respectively rotate around their own axes. Among them, the rotation directions of the two first bone fixing members 110 are opposite. After the fixing is completed, the first driving gear 132 is disconnected from the driving motor, and the driving motor can be removed from the fracture fixation device 10.

[0070] Exemplarily, the driving motor and the first driving gear 132 are fixed by a snap ring to achieve quick disassembly and installation.

[0071] Among them, the two first bone fixing members 110 are threadedly connected to the connecting plate 122, which has high stability. Specifically, in order to keep the two first bone fixing members 110 moving synchronously, the structures of the two first transmission gears 131 should be the same.

[0072] In some embodiments, the bone fixation assembly 100 further includes at least one second bone fixing member 140 and a fixing member 150. The second bone fixing member 140 is connected to the fixing member 150, and the fixing member 150 is horizontally disposed through the fixing bracket 120. The second bone fixing member 140 is configured to be fixedly connected to the bone 400 to be fixed.

[0073] Among them, the second bone fixing member 140 is disposed at a position away from the fracture. The purpose of this setting is to form a larger fixing range, thereby improving the stability of the entire fracture fixation device 10, and increasing the anti-torsion ability of the fracture fixation device 10 to prevent the fractured part of the bone 10 from rotating and dislocating during the healing process.

[0074] In some embodiments, there are two second bone fixing members 140 and fixing members 150. The two second bone fixing members 140 are correspondingly arranged with the two fixing members 150, and the two fixing members 150 are spaced apart in the vertical direction, as Figure 1 shown. The purpose of this setting is to improve the stability of the fixing bracket 120.

[0075] Among them, the fixing member 150 is provided with a mounting hole, and the support rod 123 passes through the mounting hole to fixedly arrange the fixing member 150 on the fixing bracket 120. Specifically, the support rod 123 and the mounting hole are in clearance fit.

[0076] In some embodiments, a second driving mechanism 160 is disposed between the two fixing members 150. The second driving mechanism 160 is configured to drive the two fixing members 150 to move along the axial direction of the bone 400 to be fixed.

[0077] Wherein, a second driving mechanism 160 is disposed between two fixing members 150 to move the fixing members 150 driven by the second driving mechanism 160. Specifically, the type of the second driving mechanism 160 may be belt drive, chain drive, gear drive, etc.

[0078] In some embodiments, the second driving mechanism 160 includes a rack 161, a second driving gear 162, and a second transmission gear 163;

[0079] The rack 161 is disposed on the fixing member 150, the second driving gear 162 is disposed between the two fixing members 150, and the second driving gear 162 meshes with the rack 161 to drive the rack 161 to move along the axial direction of the fixing member 150;

[0080] The second bone fixing member 140 is fixedly disposed on the second transmission gear 163. The second transmission gear 163 meshes with the rack 161, and the second transmission gear 163 is configured to drive the second bone fixing member 140 to rotate about its own axial direction.

[0081] Wherein, the second driving gear 162 is connected to a driving motor. The second driving gear 162 rotates under the action of the driving motor to drive the rack 161 meshing with the second driving gear 162 to reciprocate along the axial direction of the bone 400. At the same time, the second transmission gear 163 at the end of the rack 161 rotates under the action of the rack 161, so that the second bone fixing member 140 is screwed into the bone 400.

[0082] Wherein, the materials of the first bone fixing member 110 and the second bone fixing member 140 are titanium alloy. The purpose of such setting is that titanium alloy has excellent biocompatibility and corrosion resistance, can serve in the human body environment for a long time, and will not produce significant rejection reaction.

[0083] An embodiment of the present application provides a fracture fixation device 10, including: at least one bone fixation component 100, a joint fixation member 200, and a connecting member 300. The connecting member 300 is disposed between the bone fixation component 100 and the joint fixation member 200 for connecting the bone fixation component 100 and the joint fixation member 200. The bone fixation component 100 includes two first bone fixation members 110, and the two first bone fixation members 110 are configured to be disposed on opposite sides of the damaged position of the bone to be fixed 400 and fixedly connected to the bone to be fixed 400. The joint fixation member 200 is fixed at the joint of two adjacent bones to be fixed 400. In this way, the damaged bone is fixed by using the bone fixation component 100, and the damaged joint is fixed by using the joint fixation member 200. The bone fixation component 100 and the joint fixation member 200 are connected into an integral body by using the connecting member 300. Compared with the traditional fracture fixation device, this device can fix the damaged joint and the bone connecting the joint at the same time, adapt to the normal activities of the joint, and meet the healing of different traumatized parts of the patient.

[0084] It should be noted that the embodiments referred to in the specification, such as "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures, or characteristics with an embodiment, implementing such features, structures, or characteristics in other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0085] Generally speaking, terms should be understood at least in part by their use in the context. For example, at least in part according to the context, the term "one or more" used in the text can be used to describe any feature, structure, or characteristic in the sense of a singular, or can be used to describe a combination of features, structures, or characteristics in the sense of a plural. Similarly, at least in part according to the context, terms such as "a" can also be understood as conveying a singular usage or a plural usage.

[0086] It should be easily understood that the terms "on...", "above...", and "over..." in the present disclosure should be interpreted in the broadest manner, so that "on..." not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above..." or "over..." not only includes the meaning of "above or over something", but also can include the meaning of "above or over something" without intermediate features or layers therebetween (i.e., directly on something).

[0087] In addition, for ease of description, spatial relative terms may be used in this document, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to another as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation other than the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptors used in this document may be interpreted accordingly as well.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fracture fixation device, characterized in that: include: At least one bone fixation assembly, a joint fixation component and a connecting component, wherein the connecting component is disposed between the bone fixation assembly and the joint fixation component and is used to connect the bone fixation assembly and the joint fixation component; wherein the bone fixation assembly and the joint fixation component are relatively rotatable; The bone fixation assembly includes two first bone fixators, and the two first bone fixators are configured to be arranged on opposite sides of the damaged position of the bone to be fixed and fixedly connected to the bone to be fixed; the joint fixator is fixed at the joint of two adjacent bones to be fixed.

2. The fracture fixation device according to claim 1, characterized in that: There are two bone fixing components, and the two bone fixing components are symmetrically arranged on opposite sides of the joint fixing component and connected to the connecting component.

3. The fracture fixation device according to claim 1 or 2, characterized in that: The bone fixing assembly also includes a fixing bracket. The first bone fixing member is inserted into the fixing bracket along a first direction and is movably connected to the fixing bracket so that the first bone fixing member can be lifted and moved relative to the fixing bracket in the first direction.

4. The fracture fixation device according to claim 3, characterized in that: The fixing bracket includes a base, a connecting plate and a supporting rod, wherein the base and the connecting plate are respectively arranged at opposite ends of the supporting rod, and the supporting rod is arranged around the outer peripheral side of the first bone fixing member; The base is arranged near one end of the bone to be fixed, and is configured to abut against the bone to be fixed. The base has a mounting hole, and the first bone fixing member passes through the mounting hole to be connected to the bone to be fixed.

5. The fracture fixation device according to claim 4, characterized in that: A first driving mechanism is disposed in the connecting plate. The first driving mechanism is disposed between the two first bone fixing members and is used for driving the two first bone fixing members to move up and down along the first direction.

6. The fracture fixation device according to claim 5, characterized in that: The first driving mechanism comprises two first transmission gears and a first driving gear, and the first bone fixing member is fixedly connected to the first transmission gear; The first driving gear is disposed between the two first transmission gears, and the first driving gear is meshed with the two first transmission gears to drive the two first bone fixing members to rotate in opposite directions around their own axes.

7. The fracture fixation device according to any one of claims 4 to 6, characterized in that: The bone fixing assembly further comprises at least one second bone fixing member and a fixing member, wherein the second bone fixing member is connected to the fixing member, and the fixing member is transversely arranged in the fixing bracket, and the second bone fixing member is configured to be fixedly connected to the bone to be fixed.

8. The fracture fixation device according to claim 7, characterized in that: There are two of the second bone fixing members and the fixing members, the two second bone fixing members are arranged correspondingly to the two fixing members, and the two fixing members are arranged at intervals in the vertical direction.

9. The fracture fixation device according to claim 8, characterized in that: A second driving mechanism is arranged between the two fixing members, and the second driving mechanism is configured to drive the two fixing members to move along the axial direction of the bone to be fixed.

10. The fracture fixation device according to claim 9, characterized in that: The second driving mechanism includes a rack, a second driving gear and a second transmission gear; The rack is arranged on the fixing member, the second driving gear is arranged between the two fixing members, and the second driving gear is meshed with the rack to drive the rack to move along the axial direction of the fixing member; The second bone fixing member is fixedly disposed on the second transmission gear, the second transmission gear is meshed with the rack, and the second transmission gear is configured to drive the second bone fixing member to rotate around its own axial direction.

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