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Kirschner wire deviation rectifying system and universal nut adjusting assembly for kirschner wire deviation rectifying

A technology for adjusting components and Kirschner wires, applied in medical science, surgery, fixers, etc., can solve problems such as troublesome adjustment process and affecting operation efficiency

Active Publication Date: 2020-04-07
陈聚伍 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with this technology is that the connecting rods used to adjust the Kirschner wires or to constrain the Kirschner wires restrict each other. When any connecting rod or Kirschner wire is adjusted, it will drive other Kirschner wires in the three-dimensional structure to be different. The degree of movement or rotation will cause other Kirschner wires or connecting rods to have prestress, and other Kirschner wires or connecting rods need to be adjusted again, so this adjustment method needs to be repeated many times to complete, and the adjustment process is cumbersome. Moreover, it requires experience to operate, which affects the efficiency of surgery to a certain extent.

Method used

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  • Kirschner wire deviation rectifying system and universal nut adjusting assembly for kirschner wire deviation rectifying
  • Kirschner wire deviation rectifying system and universal nut adjusting assembly for kirschner wire deviation rectifying
  • Kirschner wire deviation rectifying system and universal nut adjusting assembly for kirschner wire deviation rectifying

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: as figure 1 The Kirschner wire deflection correction system is an assembly that uses a universal nut to adjust the Kirschner wire 1 or the Kirschner wire bushing. When adjusting the Kirschner wire 1, it is necessary to have threads on the surface of the Kirschner wire 1; Inside the needle cannula. When the system is adjusted, it means that the bottom of the Kirschner wire has been screwed into the inside of the bone, that is, the bottom of the Kirschner wire has been fixed, so turn the universal nut 3 so that the Kirschner wire 1 or the Kirschner wire sleeve will not rotate , will only move axially. After the frame 2 is fixed by the central stud 26, the Kirschner wire 1 or the Kirschner wire sleeve positioned on the inner side of the frame 2 can slide in parallel along the sliding side seam 25 in the frame 2, and can swing left and right, or swing back and forth, reaching ten thousand for the purpose of regulation.

[0021] Such as Figure 1-3 As show...

Embodiment 2

[0026]Embodiment 2: on the basis of embodiment 1, design is equal to the width of sliding side seam 25 up and down of Kirschner wire 1 or Kirschner wire sleeve, at this moment different from embodiment 1, Kirschner wire 1 or Kirschner wire The needle cannula cannot swing laterally, and the other conditions are the same.

Embodiment 3

[0027] Embodiment 3: On the basis of Embodiment 1, an assembly hole 28 is provided on the end surface of the top plate 22 , and the said universal nut 3 can be inserted into the assembly hole 28 .

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Abstract

The invention discloses a kirschner wire deviation rectifying system and a universal nut adjusting assembly for kirschner wire deviation rectifying. Four connecting rods are symmetrically connected between a bottom disc and a top disc of a frame. Adjusting side seams located on the two sides and sliding side seams located on the upper portion and the lower portion are formed between the connectingrods respectively. Universal nuts are arranged in the adjusting side seams on the two sides in a sleeved mode. Kirschner wires or kirschner wire sleeves or connecting screw rods matching screw holesof the universal nuts in a threaded mode are clamped in the sliding side seams on the upper portion and the lower portion. According to the invention, after the frame is fixed through a center stud, the kirschner wires or the kirschner wire sleeves or the connecting screw rods located on the inner side of the frame can slide in parallel along the sliding side seams in the frame and can swing leftwards and rightwards or swing forwards and backwards, so as to achieve the purpose of universal adjustment and solve the problems of mutual constraint and interference of the kirschner wires in an adjusting process.

Description

technical field [0001] The invention belongs to the technical field of auxiliary accessories for fracture positioning and fixing instruments, and in particular relates to a Kirschner wire deviation correction system capable of automatically adapting to different Kirschner wires to adjust different dimensions and angles, and a universal nut adjustment assembly for Kirschner wire deviation correction. 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 bra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/90
CPCA61B17/88A61B17/90
Inventor 陈聚伍雒合群
Owner 陈聚伍