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Femoral fracture traction reduction device

A technique for traction reduction and femoral fracture, which is applied in medical science, external fixator, surgery, etc. It can solve the problems of poor flexibility in multi-angle adjustment and inability to realize adjustment and movement, and achieve the effect of intuitive adjustment method and simplified structure.

Inactive Publication Date: 2022-02-11
陈聚伍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the current fracture positioning and fixing devices have poor flexibility in multi-angle adjustment or cannot realize arbitrary angle and position adjustment and movement, the present invention provides a traction and reduction device for femoral fractures, which is used for traction and adjustment of the two femoral segments before and after the fracture.

Method used

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  • Femoral fracture traction reduction device

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1: A femoral fracture traction and reduction device, used for traction and adjustment of the two femoral segments before and after the fracture, such as figure 1 A simplified schematic diagram is shown, and it can be seen that the device should include a rear two-dimensional adjustment unit O, a proximal two-dimensional adjustment unit A, a distal two-dimensional adjustment unit B and a front traction unit C. In view of the dislocation of any degree of freedom in the two segments of the femur that is in fracture, the device mainly realizes the multi-angle adjustment function for the other bone segment by fixing one bone segment and adjusting the other bone segment. The proximal two-dimensional adjustment unit A and the distal two-dimensional adjustment unit B are used for angular adjustment, and the front traction unit C is used for traction and steering. Compared with the existing traction reset device, the structure of this scheme is simplified, the adjustm...

Embodiment 2

[0064] Embodiment 2: On the basis of Embodiment 1, some modifications are made to the front traction unit C, such as Image 6 As shown, the L-shaped bar includes a vertical bar 16 and a cross bar 17, and two horizontal sliding sleeves 24 are set on the cross bar 17, and the lower end of each horizontal sliding sleeve 24 is vertically fixed with a fixed column 25, and the end of each fixed column 25 Each part is respectively connected with push-pull rods 20, and the front end of each push-pull rod 20 is respectively connected with two ends of the penetrating rod 22.

[0065] The main body of the bed hook 3 is provided with a vertically penetrating perforation, and the column 16 is matched and fitted in the perforation, and the side of the perforation is provided with a lock wire. As can be seen in the figure, the lifting adjustment mode of the fixed columns 25 on both sides is to rely on vertical sliding and fixing between the bed hook 3 and the column 16 .

Embodiment 3

[0066] Embodiment 3: On the basis of Embodiment 1, this embodiment mainly designs that there is a restraint structure between the lower beam 12 and the corresponding horizontal sliding sleeve 11 to prevent rotation. like Figure 7 The two parallel vertical rods and two parallel horizontal rods of the clamping parts shown in the figure, each rod is provided with a milling plane 7 on the side, and there is a matching arch plane in the corresponding sliding sleeve, and the milling plane cooperates with the arch plane, so that When the rod member slides with the corresponding sliding sleeve, it can only slide axially but not rotate. Therefore, the clamping part can withstand the pressure from the front or rear direction without rolling over.

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Abstract

The invention discloses a femoral fracture traction reduction device which comprises a rear fixing unit O, a near-end two-dimensional adjusting unit A, a far-end two-dimensional adjusting unit B and a front traction rotating unit C. Each two-dimensional adjusting unit comprises a clamping component arranged on a corresponding bone section in a sleeving mode. The front traction rotating unit C comprises a penetrating rod piece which transversely penetrates through the ends of the bone, and the two-dimensional adjusting mechanisms which are adjusted in the vertical direction and the longitudinal direction are arranged at the two ends of the penetrating rod piece respectively. According to the device, the multi-angular-position adjusting function is achieved by fixing one bone section and adjusting the other bone section, angular position adjustment is conducted through the near-end two-dimensional adjusting unit A and the far-end two-dimensional adjusting unit B, and traction and steering are conducted through the front traction rotating unit C. According to the scheme, the structure is simplified, the adjusting mode is visual and accurate, all parts cannot interfere with one another, and the problem of repeated adjustment is solved.

Description

technical field [0001] The invention belongs to the technical field of fracture positioning and fixing devices, and in particular relates to a fracture site reduction device capable of accurately performing multi-step compound adjustment and fixation. Background technique [0002] Femoral shaft fractures and distal femoral fractures are common clinical fractures. Surgical treatment is the preferred treatment method. Before intramedullary nailing and bone plate fixation, the two ends of the fracture site need to be reduced, docked and fixed. Traction is an important means of reducing femoral fractures and restoring the length of lower limbs. At present, the retractors used in various hospitals for lower extremity fracture patients mainly include a traction rope and a pulley. One end of the traction rope is connected to the bracket at the fracture site, and the other end bypasses the pulley to hang weights. The number of weights can be manually increased or replaced. The wei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/66
CPCA61B17/66A61B2017/564
Inventor 陈聚伍
Owner 陈聚伍
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