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Orthopaedic external fixing bracket connecting rod capable of plastic deformation

An external fixator and fixed rod technology, which is applied in the field of medical devices, can solve the problems of lack of shaping ability, increase the burden and pain of patients, trouble to adjust fractures, etc., to avoid redundant methods of multiple joints, reduce the burden on patients, and have a simple structure. reliable results

Inactive Publication Date: 2012-05-09
吕昌伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] External fixator is a commonly used instrument for fracture trauma, but at present, the connecting rod of external fixator is only a simple connecting rod that lacks the ability to shape. Clinicians must properly plan the fracture axis when using it, otherwise they often face the difficulty of assembling the connecting rod
Once the fracture alignment and alignment are bad, the current external fixation rods will be difficult to correct due to the lack of shaping ability. unnecessarily bulky and complex
It not only increases the operation time and trauma, but also causes a lot of trouble to adjust the fracture, directly affects the actual treatment effect of the external fixator, and increases the burden and pain of the patient

Method used

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  • Orthopaedic external fixing bracket connecting rod capable of plastic deformation
  • Orthopaedic external fixing bracket connecting rod capable of plastic deformation
  • Orthopaedic external fixing bracket connecting rod capable of plastic deformation

Examples

Experimental program
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Embodiment Construction

[0019] Such as figure 1 As shown, a plastic orthopedic external fixator connecting rod is composed of a fixing rod 3, a tension bolt 2, a double spherical spacer 4 and a cable 1. One side of the double spherical gasket 4 is a convex spherical surface, the other side is a concave spherical surface, the two spherical surfaces are parallel, and the middle of the gasket is a hole; the fixed rod 3 is two separate rods, and each fixed rod 3 is a hole in the middle. The inner hole of each fixed rod 3 end has an internal thread, and the part of one rod in contact with the double spherical gasket 4 is a convex spherical surface, and the part of the other rod in contact with the double spherical gasket 4 is a concave spherical surface; The tension bolt 2 is also a cylinder with a hole in the middle, and its outer diameter is equal to the internal hole at the end of the fixed rod 3. The surface of the tension bolt 2 has external threads, and the external threads and the internal holes at...

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PUM

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Abstract

The invention discloses an orthopaedic external fixing bracket connecting rod capable of plastic deformation. The orthopaedic external fixing bracket connecting rod comprises fixed rods, tensioning bolts, bispherical gaskets and a cable, wherein one surface of each bispherical gasket is a raised spherical face and the other surface is a concave spherical face; the fixed rods are two separated rods; internal threads are formed in internal holes at the ends of the fixed rods, wherein a raised spherical face is formed at the part, in contact with the bispherical gasket, of one rod, and a concave spherical face is formed at the part, in contact with the bispherical gasket, of the other rod; the outside diameters of the tensioning bolts are equal to those of the internal holes at the ends of the fixed rods; external threads are formed on the surfaces of the tensioning bolts and are matched with the internal threads in the internal holes at two ends of the fixed rods; the cable adopts a flexible structure; bulbs are formed at two ends of the cable; the diameter of each bulb is larger than the pore diameter of the middle of each tensioning bolt; and one tensioning bolt, one fixed rod, the bispherical gasket, the other fixed rod and the other tensioning bolt are serially connected in sequence through the cable. The connecting rod has advantage that universal plastic deformation of the connecting rod is realized.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an orthopedic external fixator connecting rod with an internal shaping structure. Background technique [0002] External fixator is a commonly used instrument for fracture trauma, but at present, the connecting rod of external fixator is only a simple connecting rod lacking in shaping ability. Clinicians must properly plan the fracture axis when using it, otherwise they often face the difficulty of assembling the connecting rod. Once the fracture alignment and alignment are bad, the current external fixation rods will be difficult to correct due to the lack of shaping ability. unnecessarily bulky and complex. Not only increased the operation time and trauma, but also caused a lot of trouble to adjust the fracture, directly affected the actual therapeutic effect of the external fixator, and increased the burden and pain of the patient. Contents of the invention [0003] In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/60
Inventor 吕昌伟刘建吴尧平刘艳武刘存亮
Owner 吕昌伟
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