Fracture reducer

Abstract

In order to solve the prior art, the utility model provides a kind of bone fracture repositor, comprising: bottom plate and reset mechanism, the reset mechanism includes rotary arm mechanism, longitudinal displacement mechanism, proximal vertical rotation mechanism, distal transverse displacement mechanism, longitudinal rotation mechanism, longitudinal vertical rotation fine adjustment mechanism and end mechanism. The utility model can be adjusted the displacement and rotation of bone transverse, longitudinal and vertical by each mechanism, displacement forms variety, angle range is wide, can be applicable to the reset treatment of fracture in different positions.

Description

Technical Field

[0001] This utility model belongs to the field of medical tool technology, specifically relating to a fracture reduction device. Background Technology

[0002] A fracture is a complete or partial break in the continuity of bone structure. It is a disease caused by trauma or pathology that results in the partial or complete break of bone. Its main clinical manifestations include localized pain and tenderness at the fracture site, local swelling and ecchymosis, and partial or complete loss of limb function. Complete loss fractures may also cause limb deformity and abnormal movement. After a fracture, patients need to undergo reduction treatment to promote healing and reduce deformity.

[0003] Depending on the location of the fracture, different fracture reduction devices with different structures are required, resulting in high equipment procurement costs. Furthermore, the usage methods of different fracture reduction devices also differ, leading to higher personnel training costs. Utility Model Content

[0004] This utility model addresses the problems existing in the prior art by providing a fracture reduction device, comprising: a base plate and a reduction mechanism, wherein the reduction mechanism includes a rotating arm mechanism, a longitudinal displacement mechanism, a proximal vertical rotation mechanism, a distal lateral displacement mechanism, a longitudinal rotation mechanism, a longitudinal vertical rotation fine-tuning mechanism, and an end mechanism;

[0005] The rotary arm mechanism includes a fixed arm and a rotating arm, with the lower end of the rotating arm rotatably connected to the top end of the fixed arm;

[0006] The longitudinal displacement mechanism includes a longitudinal displacement fixed block and a longitudinal displacement moving block. The longitudinal displacement moving block is connected to the longitudinal displacement fixed block through a longitudinal displacement connecting rod. The longitudinal displacement moving block moves longitudinally with the longitudinal displacement connecting rod. A longitudinal displacement connecting end is provided at the end of the longitudinal displacement moving block.

[0007] The proximal vertical rotation mechanism includes a proximal vertical rotating end and a proximal vertical fixed end, which are rotatably connected.

[0008] The distal lateral displacement mechanism includes a distal guide rod and a distal slider, and the distal slider can move along the distal guide rod.

[0009] The longitudinal rotation mechanism includes a longitudinal rotation worm and a longitudinal rotation gear, the longitudinal rotation worm meshes with the longitudinal rotation gear, and a connecting shaft is provided at the center of the longitudinal rotation gear;

[0010] The longitudinal and vertical rotation fine-tuning mechanism includes a rotating head, a longitudinal rotation fine-tuning component, and a vertical rotation fine-tuning component. The vertical rotation fine-tuning component includes a vertical fine-tuning screw, a vertical fine-tuning moving block, and a vertical fine-tuning guide rod. The vertical fine-tuning moving block has vertical fine-tuning grooves at both ends, and the vertical fine-tuning guide rod is embedded in the vertical fine-tuning grooves. The vertical fine-tuning screw is screwed through the vertical fine-tuning moving block. When the vertical fine-tuning screw is rotated, the vertical fine-tuning moving block moves up and down. The front end face of the vertical fine-tuning moving block is hinged to the rotating head. The longitudinal rotation fine-tuning component has a longitudinal moving block, with a longitudinal fine-tuning screw screwed along the longitudinal direction. The vertical fine-tuning moving block is fixedly connected to the longitudinal moving block.

[0011] The longitudinal rotating block and the vertical rotating block are provided with a longitudinal rotating connecting end at the outer end of the longitudinal rotating block and a vertical rotating connecting end at the outer end of the vertical rotating block.

[0012] The end mechanism includes a fixed frame, with longitudinal fixing rods connected to the front and rear sides of the fixed frame. A first fixing frame is provided on the front side of the fixed frame, and a longitudinal bone nail is provided on the fixing frame. A second fixing frame is provided in the middle of the fixed frame, and the second fixing frame is connected to at least one vertical bone nail through a fixing link.

[0013] The base plate is provided with a front-end reset mechanism at one end in the lateral direction. The front-end reset mechanism consists of a rotating arm mechanism, a longitudinal displacement mechanism, a distal lateral displacement mechanism, a longitudinal rotation mechanism, a longitudinal vertical rotation fine-tuning mechanism, and a front-end fixing mechanism.

[0014] The bottom of the fixed arm of the rotary arm mechanism is fixedly connected to the base plate, the longitudinal displacement fixed block of the longitudinal displacement mechanism is rotatably connected to the top of the rotary arm, the longitudinal displacement moving block is rotatably connected to the far end slider, the end of the far end guide rod is fixedly connected to one end of the longitudinal rotation mechanism, the other end of the longitudinal rotation mechanism is connected to the vertical rotation connection end, and the longitudinal rotation connection end is rotatably connected to the middle of the fixed frame.

[0015] Furthermore, the longitudinal displacement moving block has a longitudinal displacement adjustment hole, and a longitudinal displacement adjustment screw is screwed into the longitudinal displacement adjustment hole. After the longitudinal displacement adjustment screw is screwed into the longitudinal displacement adjustment hole, it abuts against the longitudinal displacement connecting rod to fix the longitudinal displacement connecting rod.

[0016] Furthermore, the end face of the longitudinal displacement connecting end is provided with a longitudinal displacement connecting shaft, and the end face of the longitudinal displacement connecting end is provided with a toothed surface around the longitudinal displacement connecting shaft.

[0017] Furthermore, a remote fixing block is provided at one end of the remote guide rod, and a remote connecting block is provided at the other end of the remote guide rod; a remote screw is screwed to the center of the remote slider, one end of the remote screw passes through the remote fixing block and connects to the rocker arm, and the other end of the remote screw is rotatably connected to the center of the remote connecting block.

[0018] Furthermore, the fixing frame is U-shaped, with straight rods on the front and rear sides. The two straight rods are connected by an arc-shaped rod. Multiple adjustment holes are arranged along the longitudinal direction on the part of the straight rod near the arc-shaped rod. The two ends of the longitudinal fixing rod are respectively set in the corresponding adjustment holes. The top surface of the straight rod is opened with a fixing hole corresponding to the adjustment hole. Fixing screws are screwed into the fixing holes. The fixing screws are screwed into the fixing holes and abut against the longitudinal fixing rod to fix the longitudinal fixing rod.

[0019] Furthermore, the top surface of the straight rod away from the arc-shaped rod has first fixing bracket adjustment holes arranged in a row, and the first fixing bracket is fixedly connected to the first fixing bracket adjustment holes by screws.

[0020] Furthermore, the second fixing frame is provided with an adjusting slide groove, one end of the fixing rod is disposed in the adjusting slide groove and can move up and down along the adjusting slide groove, and the other end of the fixing rod is fitted with a bone nail connecting post, the end of the bone nail connecting post is rotatably connected to a bone nail connecting head, and the bone nail is disposed in the bone nail connecting head.

[0021] Furthermore, a fixed frame connecting rod is provided in the middle of the arc-shaped rod, and the arc-shaped rod end face around the fixed frame connecting rod is provided with a toothed surface.

[0022] Furthermore, an end-reset mechanism is provided at the other end of the base plate in the lateral direction. The end-reset mechanism includes a rotating arm mechanism, a longitudinal displacement mechanism, a proximal vertical rotation mechanism, a longitudinal vertical rotation fine-tuning mechanism, a first fixing frame, and a fixing link. The upper end of the rotating arm is rotatably connected to the longitudinal displacement fixing block of the longitudinal displacement mechanism. The longitudinal displacement moving block is fixedly connected to the proximal vertical rotation end. The proximal vertical fixing end is connected to the longitudinal vertical rotation fine-tuning mechanism. The rotating head of the longitudinal vertical rotation fine-tuning mechanism is fixedly connected to the first fixing frame. A fixing link is provided on the first fixing frame, and at least two bone screws are provided at the end of the fixing link.

[0023] Furthermore, an end-reset mechanism is provided at the other end of the base plate in the lateral direction. The end-reset mechanism includes a rotating arm mechanism, a proximal vertical rotation mechanism, a longitudinal vertical rotation fine-tuning mechanism, a first fixing frame, and a fixing link. The upper end of the rotating arm of the rotating arm mechanism is rotatably connected to the proximal vertical rotation end of the proximal vertical rotation mechanism. The proximal vertical fixing end is fixedly connected to the longitudinal vertical rotation fine-tuning mechanism. The rotating head of the longitudinal vertical rotation fine-tuning mechanism is fixedly connected to the first fixing frame. A fixing link is provided on the first fixing frame, and at least two bone screws are provided at the end of the fixing link.

[0024] This invention has at least the following advantages: It can adjust the lateral, longitudinal and vertical displacement and rotation of bones through various mechanisms, resulting in diverse displacements and a wide range of angles, making it suitable for the reduction and treatment of fractures in different locations. Attached Figure Description

[0025] Figure 1 The diagram shown is a structural schematic of Embodiment 1 of this utility model.

[0026] Figure 2 The diagram shown is a schematic diagram of the rotary arm mechanism of this utility model;

[0027] Figure 3 The diagram shown is a schematic diagram of the longitudinal displacement mechanism of this utility model.

[0028] Figure 4 The diagram shown is a schematic of the distal lateral displacement mechanism.

[0029] Figure 5 The diagram shown is a schematic of the internal structure of the longitudinal rotation mechanism.

[0030] Figure 6 The diagram shown is a schematic of the internal structure of the vertical rotation fine-tuning mechanism.

[0031] Figure 7 This is a schematic diagram of the end effector structure;

[0032] Figure 8 The diagram shown is a structural schematic of Example 2;

[0033] Figure 9 The diagram shown is a structural schematic of Example 3;

[0034] Figure 10 The diagram shown is a schematic of the proximal vertical rotation mechanism.

[0035] Figure 11 The diagram shown is a structural schematic of Example 4.

[0036] 1. Base plate; 2. Rotating arm mechanism; 21. Fixed arm; 22. Rotating arm; 3. Longitudinal displacement mechanism; 31. Longitudinal displacement fixed block; 32. Longitudinal displacement moving block; 33. Longitudinal displacement connecting rod; 34. Longitudinal displacement adjusting screw; 4. Distal lateral displacement mechanism; 41. Distal slider; 42. Distal guide rod; 43. Distal screw; 44. Distal fixed block; 45. Distal connecting block; 46. Rocker arm; 5. Longitudinal rotation mechanism; 51. Longitudinal rotation worm gear; 52. Longitudinal rotation gear; 53. Connecting shaft; 6. Longitudinal vertical rotation fine adjustment mechanism; 61. Vertical 62. Fine-tuning screw; 63. Vertical fine-tuning moving block; 64. Rotating head; 65. Vertical fine-tuning guide rod; 66. Longitudinal fine-tuning screw; 77. Longitudinal fine-tuning moving block; 88. Fixing frame; 9. Adjusting hole; 10. Fixing hole; 11. First fixing frame adjustment hole; 12. First fixing frame; 13. Fixing connecting rod; 14. Bone screw connecting column; 15. Bone screw connecting head; 16. Longitudinal fixing rod; 17. Second fixing frame; 18. Longitudinal cylinder; 19. Bone screw; 10. Vertical cylinder; 11. Proximal vertical rotation mechanism; 12. Proximal vertical rotating end; 13. Proximal vertical fixing end. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0038] Example 1

[0039] like Figures 1-7 As shown, the fracture reduction device includes: a base plate 1 and a reduction mechanism, wherein the reduction mechanism includes a rotating arm mechanism 2, a longitudinal displacement mechanism 3, a distal transverse displacement mechanism 4, a longitudinal rotation mechanism 5, a longitudinal vertical rotation fine-tuning mechanism 6 and an end mechanism;

[0040] The rotating arm mechanism 2 includes a fixed arm 21 and a rotating arm 22, with the lower end of the rotating arm 22 rotatably connected to the top end of the fixed arm 21;

[0041] The longitudinal displacement mechanism 3 includes a longitudinal displacement fixing block 31 and a longitudinal displacement moving block 32. The longitudinal displacement moving block 32 is connected to the longitudinal displacement fixing block 31 through a longitudinal displacement connecting rod 33. The longitudinal displacement moving block 32 moves longitudinally with the longitudinal displacement connecting rod 33. A longitudinal displacement connecting end is provided at the end of the longitudinal displacement moving block 32. The longitudinal displacement fixing block 31 has a longitudinal displacement adjustment hole. A longitudinal displacement adjustment screw 34 is screwed into the longitudinal displacement adjustment hole. After the longitudinal displacement adjustment screw 34 is screwed into the longitudinal displacement adjustment hole, it abuts against the longitudinal displacement connecting rod 33 to fix the longitudinal displacement connecting rod 33. A longitudinal displacement connecting shaft is provided on the end face of the longitudinal displacement connecting end. A toothed surface is provided on the end face of the longitudinal displacement connecting end around the longitudinal displacement connecting shaft.

[0042] The distal lateral displacement mechanism 4 includes a distal guide rod 42 and a distal slider 41, the distal slider 41 being movable along the distal guide rod 42; a distal fixing block 44 is provided at one end of the distal guide rod 42, and a distal connecting block 45 is provided at the other end of the distal guide rod 42; a distal screw 43 is centrally screwed to the distal slider 41, one end of the distal screw 43 passing through the distal fixing block 44 and connecting to a rocker arm 46, and the other end of the distal screw 43 being rotatably connected to the center of the distal connecting block 45.

[0043] The longitudinal rotation mechanism 5 includes a longitudinal rotation worm 51 and a longitudinal rotation gear 52. The longitudinal rotation worm 51 meshes with the longitudinal rotation gear 52, and a connecting shaft 53 is provided at the center of the longitudinal rotation gear 52.

[0044] The longitudinal and vertical rotation fine-tuning mechanism 6 includes a rotating head 63, a longitudinal rotation fine-tuning component, and a vertical rotation fine-tuning component. The vertical rotation fine-tuning component includes a vertical fine-tuning screw 61, a vertical fine-tuning moving block 62, and a vertical fine-tuning guide rod 64. The vertical fine-tuning moving block 62 has vertical fine-tuning grooves at both ends, and the vertical fine-tuning guide rod 64 is embedded in the vertical fine-tuning grooves. The vertical fine-tuning screw 61 is screwed through the vertical fine-tuning moving block 62. When the vertical fine-tuning screw 61 is rotated, the vertical fine-tuning moving block 62 moves up and down. The front end face of the vertical fine-tuning moving block 62 is hinged to the rotating head 63. The longitudinal rotation fine-tuning component has a longitudinal moving block 66, and a longitudinal fine-tuning screw 65 is screwed onto the longitudinal part of the longitudinal moving block 66. The vertical fine-tuning moving block 62 is fixedly connected to the longitudinal moving block 66.

[0045] The end mechanism includes a fixing frame 7, with longitudinal fixing rods 9 connected to the front and rear sides of the fixing frame 7. A first fixing bracket 8 is provided on the front side of the fixing frame 7, and bone nails 12 are longitudinally arranged on the first fixing bracket. A second fixing bracket 10 is provided in the middle of the fixing frame 7, and at least one bone nail 12 is vertically connected to the second fixing bracket 10 through a fixing connecting rod 81. The fixing frame 7 has a U-shaped structure, with straight rods on the front and rear sides, and two straight rods connected by an arc-shaped rod. Multiple adjustment holes 71 are arranged longitudinally on the part of the straight rods near the arc-shaped rods. The two ends of the longitudinal fixing rods 9 are respectively set in the corresponding adjustment holes 71. Fixing holes 72 are opened on the top surface of the straight rods corresponding to the adjustment holes. Fixing screws are screwed into the fixing holes 72 for fixing. The screw is screwed into the fixing hole 72 and abuts against the longitudinal fixing rod 9 to fix the longitudinal fixing rod 9; the top surface of the straight rod away from the arc rod has the first fixing frame adjustment hole 73 arranged, and the first fixing frame 8 is fixedly connected to the first fixing frame adjustment hole 73 by screws; the middle of the arc rod is provided with a fixing frame connecting rod, and the arc rod end face around the fixing frame connecting rod is provided with a toothed surface; the second fixing frame 10 is provided with an adjustment slide groove, one end of the fixing connecting rod 81 is provided in the adjustment slide groove and can move up and down along the adjustment slide groove, and the other end of the fixing connecting rod 81 is sleeved with a bone nail connecting post 82, the end of the bone nail connecting post 82 is rotatably connected to a bone nail connecting head 83, and the bone nail 12 is provided in the bone nail connecting head 83.

[0046] The base plate 1 is provided with a front-end reset mechanism at one end in the lateral direction. The front-end reset mechanism consists of a rotating arm mechanism 2, a longitudinal displacement mechanism 3, a distal lateral displacement mechanism 4, a longitudinal rotation mechanism 5, a longitudinal vertical rotation fine-tuning mechanism 6, and an end mechanism.

[0047] The bottom of the fixed arm 21 of the rotating arm mechanism 2 is fixedly connected to the base plate 1. The longitudinal displacement fixed block 31 of the longitudinal displacement mechanism 3 is rotatably connected to the top of the rotating arm 22. The longitudinal displacement moving block 32 is rotatably connected to the remote slider 41. The end of the remote guide rod 42 is fixedly connected to one end of the longitudinal rotation mechanism 5. The other end of the longitudinal rotation mechanism 5 is connected to the longitudinal vertical rotation fine adjustment mechanism 6. The rotating head 63 is rotatably connected to the middle of the fixed frame 7.

[0048] The longitudinal position of the overall mechanism is adjusted by rotating the rotating arm 22 of the rotating arm mechanism 2. The longitudinal position of the mechanism is adjusted by moving the longitudinal moving block 32 in the longitudinal displacement mechanism 3. The position of the distal slider 41 in the lateral direction can be adjusted by shaking the rocker arm 46. The longitudinal rotation angle of the mechanism is adjusted by rotating the longitudinal rotating worm 51 and the longitudinal rotating gear 52. The rotation angle of the rotating head 63 in the longitudinal and vertical directions is finely adjusted by the longitudinal vertical fine adjustment mechanism 6. The fixing frame 7 is set outside the fracture bone. The longitudinal fixing rod 9 passes through the front end of the fracture bone to fix the end of the fracture bone. The first fixing frame 8 and the second fixing frame 10 are set to fix the fracture bone according to the fracture bone condition.

[0049] For bone fractures at the anterior end of the joint, a longitudinal tube 11 is set at the end of the base plate 1. The longitudinal tube 11 is placed under the joint, and the bone at the fracture site is placed in the fixation frame 7. The longitudinal fixation rod 9 passes through the end of the bone at the fracture site to fix the bone at the fracture site. The first fixation frame 8 is equipped with bone nails 12 to assist in fixing the bone at the fracture site. By adjusting the various mechanisms, the bone at the fracture site is repositioned and connected with the rest of the bones.

[0050] Example 2

[0051] like Figure 8 As shown, for bone fractures of the hip joint or the anterior end of the scapula, a vertical tube 13 is set at the end of the base plate 1. The connection between the bone and the hip joint or scapula is set on one side of the vertical tube 13. The bone at the fracture site is set in the fixing frame 7. The longitudinal fixing rod 9 passes through the end of the bone at the fracture site to fix the bone. By adjusting the various mechanisms, the bone at the fracture site is repositioned and connected with the rest of the bones.

[0052] Example 3

[0053] like Figures 9-10 As shown, in this embodiment, the reset mechanism also includes a proximal vertical rotation mechanism 14, which includes a proximal vertical rotation end 141 and a proximal vertical fixed end 142, and the proximal vertical rotation end 141 and the proximal vertical fixed end 142 are rotatably connected.

[0054] The other end of the base plate 1 is provided with an end reset mechanism. The end reset mechanism includes a rotating arm mechanism 2, a longitudinal displacement mechanism 3, a proximal vertical rotation mechanism 14, a longitudinal vertical rotation fine-tuning mechanism 6, a first fixing frame 8, and a fixing link 81. The upper end of the rotating arm 22 is rotatably connected to the longitudinal displacement fixing block 31 of the longitudinal displacement mechanism 3. The longitudinal displacement moving block 32 is fixedly connected to the proximal vertical rotation end 141. The proximal vertical fixing end 142 is connected to the longitudinal vertical rotation fine-tuning mechanism 6. The rotating head 63 of the longitudinal vertical rotation fine-tuning mechanism 6 is fixedly connected to the first fixing frame 8. The first fixing frame 8 is provided with a fixing link 81, and at least two bone nails 12 are provided at the end of the fixing link 81.

[0055] This embodiment is applicable to fractures of the posterior end of a joint. The anterior end of the bone at the posterior end of the joint is positioned within a fixing frame 7, with a longitudinal fixing rod 9 passing through it. A first fixing frame 8, mounted on the fixing frame 7, is fitted with bone screws 12 for vertical fixation of the anterior end of the bone. A second fixing frame 10, also mounted on the fixing frame 7, is fitted with bone screws 12 for simultaneous longitudinal fixation of the bone. The first fixing frame 8, mounted on the distal repositioning mechanism, is fitted with bone screws 12 for vertical fixation of the distal end of the bone. The bone is repositioned and reconnected by adjusting the distal and distal repositioning mechanisms.

[0056] Example 4

[0057] like Figure 11 As shown, a resetting mechanism is provided at the other end of the base plate 1 in the lateral direction. The resetting mechanism includes a rotating arm mechanism 2, a proximal vertical rotation mechanism 14, a longitudinal vertical rotation fine-tuning mechanism 6, a first fixing frame 8, and a fixing link 9. The upper end of the rotating arm 22 of the rotating arm mechanism 2 is rotatably connected to the proximal vertical rotation end 141 of the proximal vertical rotation mechanism 14. The proximal vertical fixing end 142 is fixedly connected to the longitudinal vertical rotation fine-tuning mechanism 6. The rotating head 63 of the longitudinal vertical rotation fine-tuning mechanism 6 is fixedly connected to the first fixing frame 8. A fixing link 81 is provided on the first fixing frame 8, and at least two bone nails 12 are provided at the end of the fixing link 81.

[0058] This embodiment is also applicable to fractures of the posterior end of the joint. The anterior end of the bone at the posterior end of the joint is positioned within the fixation frame 7, with a longitudinal fixation rod 9 passing through it. A first fixation frame 8, mounted on the fixation frame 7, is fitted with bone screws 12 for vertical fixation of the anterior end of the bone. A second fixation frame 10, also mounted on the fixation frame 7, is fitted with bone screws 12 for longitudinal fixation of the bone. The first fixation frame 8, mounted on the distal repositioning mechanism, is fitted with bone screws 12 for vertical fixation of the distal end of the bone. The bone is repositioned and reconnected by adjusting the distal and distal repositioning mechanisms.

[0059] It should be noted and understood that various modifications and improvements can be made to the present invention as described in the above description without departing from the spirit and scope of the claims. Therefore, the scope of the claimed technical solutions is not limited to any specific exemplary teachings given.

Claims

1. A fracture reduction device, characterized in that, include: The base plate and reset mechanism include a rotating arm mechanism, a longitudinal displacement mechanism, a proximal vertical rotation mechanism, a distal lateral displacement mechanism, a longitudinal rotation mechanism, a longitudinal vertical rotation fine-tuning mechanism, and an end mechanism. The rotary arm mechanism includes a fixed arm and a rotating arm, with the lower end of the rotating arm rotatably connected to the top end of the fixed arm; The longitudinal displacement mechanism includes a longitudinal displacement fixed block and a longitudinal displacement moving block. The longitudinal displacement moving block is connected to the longitudinal displacement fixed block through a longitudinal displacement connecting rod. The longitudinal displacement moving block moves longitudinally with the longitudinal displacement connecting rod. A longitudinal displacement connecting end is provided at the end of the longitudinal displacement moving block. The proximal vertical rotation mechanism includes a proximal vertical rotating end and a proximal vertical fixed end, and the proximal vertical rotating end and the proximal vertical fixed end are rotatably connected; The distal lateral displacement mechanism includes a distal guide rod and a distal slider, and the distal slider can move along the distal guide rod. The longitudinal rotation mechanism includes a longitudinal rotation worm and a longitudinal rotation gear, the longitudinal rotation worm meshes with the longitudinal rotation gear, and a connecting shaft is provided at the center of the longitudinal rotation gear; The longitudinal and vertical rotation fine-tuning mechanism includes a rotating head, a longitudinal rotation fine-tuning component, and a vertical rotation fine-tuning component. The vertical rotation fine-tuning component includes a vertical fine-tuning screw, a vertical fine-tuning moving block, and a vertical fine-tuning guide rod. The vertical fine-tuning moving block has vertical fine-tuning grooves at both ends, and the vertical fine-tuning guide rod is embedded in the vertical fine-tuning grooves. The vertical fine-tuning screw is screwed through the vertical fine-tuning moving block. When the vertical fine-tuning screw is rotated, the vertical fine-tuning moving block moves up and down. The front end face of the vertical fine-tuning moving block is hinged to the rotating head. The longitudinal rotation fine-tuning component has a longitudinal moving block, with a longitudinal fine-tuning screw screwed along the longitudinal direction. The vertical fine-tuning moving block is fixedly connected to the longitudinal moving block. The longitudinal rotating block and the vertical rotating block are provided with a longitudinal rotating connecting end at the outer end of the longitudinal rotating block and a vertical rotating connecting end at the outer end of the vertical rotating block. The end mechanism includes a fixed frame, with longitudinal fixing rods connected to the front and rear sides of the fixed frame. A first fixing frame is provided on the front side of the fixed frame, and a longitudinal bone nail is provided on the fixing frame. A second fixing frame is provided in the middle of the fixed frame, and the second fixing frame is connected to at least one vertical bone nail through a fixing link. The base plate is provided with a front-end reset mechanism at one end in the lateral direction. The front-end reset mechanism consists of a rotating arm mechanism, a longitudinal displacement mechanism, a distal lateral displacement mechanism, a longitudinal rotation mechanism, a longitudinal vertical rotation fine-tuning mechanism, and a front-end fixing mechanism. The bottom of the fixed arm of the rotary arm mechanism is fixedly connected to the base plate. The longitudinal displacement fixed block of the longitudinal displacement mechanism is rotatably connected to the top of the rotary arm. The longitudinal displacement moving block is rotatably connected to the far-end guide block. The end of the far-end guide rod is fixedly connected to one end of the longitudinal rotation mechanism. The other end of the longitudinal rotation mechanism is connected to the vertical rotation connection end. The longitudinal rotation connection end is rotatably connected to the middle of the fixed frame.

2. The fracture reduction device according to claim 1, characterized in that, The longitudinal displacement moving block has a longitudinal displacement adjustment hole, and a longitudinal displacement adjustment screw is screwed into the longitudinal displacement adjustment hole. After the longitudinal displacement adjustment screw is screwed into the longitudinal displacement adjustment hole, it abuts against the longitudinal displacement connecting rod to fix the longitudinal displacement connecting rod.

3. The fracture reduction device according to claim 2, characterized in that, The longitudinal displacement connecting end face is provided with a longitudinal displacement connecting shaft, and the longitudinal displacement connecting end face is provided with a toothed surface around the longitudinal displacement connecting shaft.

4. The fracture reduction device according to claim 1, characterized in that: One end of the distal guide rod is provided with a distal fixing block, and the other end of the distal guide rod is provided with a distal connecting block; the distal slider is screwed to the center of the distal screw rod, one end of the distal screw rod passes through the distal fixing block and connects to the rocker arm, and the other end of the distal screw rod is rotatably connected to the center of the distal connecting block.

5. The fracture reduction device according to claim 1, characterized in that, The fixed frame has a U-shaped structure with straight rods on the front and rear sides. The two straight rods are connected by an arc rod. Multiple adjustment holes are arranged along the longitudinal direction on the part of the straight rods near the arc rod. The two ends of the longitudinal fixed rod are respectively set in the corresponding adjustment holes. The top of the straight rod has a fixed hole corresponding to the adjustment hole. A fixing screw is screwed into the fixing hole. The fixing screw is screwed into the fixing hole and abuts against the longitudinal fixed rod to fix the longitudinal fixed rod.

6. The fracture reduction device according to claim 5, characterized in that, The top surface of the straight rod away from the arc-shaped rod has first fixing bracket adjustment holes arranged in a row, and the first fixing bracket is fixedly connected to the first fixing bracket adjustment holes by screws.

7. The fracture reduction device according to claim 5, characterized in that, The second fixing frame has an adjustment groove. One end of the fixing rod is set in the adjustment groove and can move up and down along the adjustment groove. The other end of the fixing rod is fitted with a bone nail connecting post. The end of the bone nail connecting post is rotatably connected to a bone nail connecting head, and the bone nail is set in the bone nail connecting head.

8. The fracture reduction device according to claim 5, characterized in that, A fixed frame connecting rod is provided in the middle of the arc-shaped rod, and the arc-shaped rod end face around the fixed frame connecting rod is provided with a toothed surface.

9. The fracture reduction device according to claim 1, characterized in that: The other end of the base plate is provided with an end resetting mechanism. The end resetting mechanism includes a rotating arm mechanism, a longitudinal displacement mechanism, a proximal vertical rotation mechanism, a longitudinal vertical rotation fine-tuning mechanism, a first fixing frame, and a fixing link. The upper end of the rotating arm is rotatably connected to the longitudinal displacement fixing block of the longitudinal displacement mechanism. The longitudinal displacement moving block is fixedly connected to the proximal vertical rotation end. The proximal vertical fixing end is connected to the longitudinal vertical rotation fine-tuning mechanism. The rotating head of the longitudinal vertical rotation fine-tuning mechanism is fixedly connected to the first fixing frame. A fixing link is provided on the first fixing frame, and at least two bone screws are provided at the end of the fixing link.

10. The fracture reduction device according to claim 1, characterized in that: The other end of the base plate is provided with an end resetting mechanism, which includes a rotating arm mechanism, a proximal vertical rotation mechanism, a longitudinal vertical rotation fine-tuning mechanism, a first fixing frame, and a fixing link. The upper end of the rotating arm of the rotating arm mechanism is rotatably connected to the proximal vertical rotation end of the proximal vertical rotation mechanism. The proximal vertical fixing end is fixedly connected to the longitudinal vertical rotation fine-tuning mechanism. The rotating head of the longitudinal vertical rotation fine-tuning mechanism is fixedly connected to the first fixing frame. A fixing link is provided on the first fixing frame, and at least two bone screws are provided at the end of the fixing link.

Images