Fracture traction repositioning method and device

A technology of traction reduction and traction mechanism, applied in the direction of the fixer, etc., can solve the problems of rotation adjustment and swing adjustment that are not easy to break

Pending Publication Date: 2018-02-27
陈聚伍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the disadvantages of the traditional rigid traction method and the problem that it is difficult to adjust the rotation and swing of the broken bone, and provides a method that can freely adjust the position of the section with high precision while pulling the end of the broken bone, so as to realize the best position adjustment. Fracture traction reduction method and device for reduction

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  • Fracture traction repositioning method and device
  • Fracture traction repositioning method and device
  • Fracture traction repositioning method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: After the fracture, the cross-sectional positions of the outer segment of the broken bone and the inner segment of the broken bone are usually as follows figure 1 In the overlapping form shown, the angle and twist of the outer segment of the broken bone is uncertain and easily mobile. Therefore, when docking the outer segment of the broken bone with the inner segment of the broken bone, in addition to traction work on the outer segment of the broken bone, it may also be necessary to adjust the rotation angle of the outer segment of the broken bone and the swing angle of the outer segment of the broken bone (horizontal swing angle and vertical swing angle combination). If the traditional traction method is adopted, since the traction component is a rigid traction method, the outer segment of the broken bone cannot be adjusted to rotate and swing. Therefore, this embodiment provides a fracture traction reduction method.

[0029] see figure 2 As shown, th...

Embodiment 2

[0035] Embodiment 2: On the basis of the adjustment method in Embodiment 1, the traction mechanism is improved. when using as image 3 When the spherical universal joint is fixed on the middle part of the bow bar 27 in the shown manner, the traction fixing seat 31 of the traction mechanism is provided with a mechanism capable of adjusting the traction bar or the traction rope 28 vertically and horizontally. Wherein the traction mechanism includes a traction fixing seat 31 and a pulling driving part, and the pulling driving part uses the traction fixing seat 31 as a carrier to perform traction operation. Utilize the traction fixing seat 31 that can be adjusted, such as Figure 4 with Figure 5 As shown, when the traction bar or traction rope 28 is adjusted vertically to a reasonable height and fixed, the horizontal slider can slide by itself, and has the characteristics of adaptively reaching the optimum traction angle.

Embodiment 3

[0036] Embodiment 3: A fracture traction reduction device, including a fixation component fixed at the end of a broken bone and a traction mechanism. The fixed part and the traction mechanism can adopt the existing traction and fixation period.

[0037] see figure 2 As shown, a spherical universal joint is set between the fixed part and the traction part. For the specific structure of the spherical universal joint, see image 3 As shown, the universal joint outer spherical shell 29 and the universal joint inner sphere 30 are included. Wherein, the inner surface of the universal joint outer spherical shell 29 is a spherical surface, and the outer surface of the universal joint inner sphere 30 is a spherical surface, and the two can be matched and set together to rotate freely without breaking away. The ball 30 in the universal joint is also provided with a through hole penetrating through the axis.

[0038] The end of the traction rod or the traction rope 28 of the traction...

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Abstract

The invention discloses a fracture traction repositioning method and device. The root part of an inner section of a broken bone is fixed through a supporting point; the tail end of the outer end of the broken bone is dragged; a spherical universal joint is arranged between a fixed part and a traction part; a vertical adjusting rod and a transverse adjusting rod are inserted into the bone on the section of an outer section of the broken bone along the vertical direction and the transverse direction respectively; after the outer section of the broken bone is dragged, the vertical adjusting rod and the transverse adjusting rod are controlled respectively to enable positions of the section of the outer section of the broken bone and the section of the inner section of the broken bone to correspond to each other and fix the outer section and the inner section of the broken bone. According to the fracture traction repositioning method and device, rigid traction is changed into flexible traction so that the characteristic that a dragged end can rotate and swing is realized; the aim of freely adjusting is realized under the condition that the device is not interfered by a traction force. According to the fracture traction repositioning method and device, a vertical adjusting mechanism and a transverse adjusting mechanism are arranged on the section of the outer section of the broken bone; after the sections are overlapped due to traction, the position of the outer section of the broken bone can be accurately and rapidly adjusted and the optimal abutting join effect is realized.

Description

Technical field: [0001] The invention belongs to the technical field of orthopedic fracture traction reduction medical devices, and in particular relates to a fracture traction reduction method and device. Background technique: [0002] Femoral shaft fractures and distal femoral fractures are common clinical fractures. Surgical treatment is the treatment of choice, including intramedullary nailing and bone plate fixation. Before using intramedullary nailing as a minimally invasive treatment for femoral fractures, it is first necessary to distract and reduce the fractured bone. Due to the strong strength of the thigh muscles such as the quadriceps femoris, patients with femur fractures often have shortening deformities due to muscle stretching, and it is difficult to reset, restore their length and maintain them effectively during the operation. If the anatomical reduction cannot be performed during the operation, complications such as malunion and poor alignment of the low...

Claims

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Application Information

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IPC IPC(8): A61B17/88
CPCA61B17/8866
Inventor陈聚伍
Owner陈聚伍