Double-track type external fixed bracket

An external fixation, double-track technology, applied in the direction of external fixator, fixator, etc., can solve the problems of functional limitations, can not fully avoid the stress shielding effect, etc., to achieve the effect of multiple functions

Inactive Publication Date: 2012-09-05
方玉树
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The functions of these external fixation brackets are relatively limited, compression, elongation and multi-plane three-dimensional fixation cannot be performed at the same time, and the stress shielding effect cannot be fully avoided in the middle and late stages of fracture

Method used

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  • Double-track type external fixed bracket
  • Double-track type external fixed bracket
  • Double-track type external fixed bracket

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Experimental program
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Embodiment Construction

[0012] Now in conjunction with accompanying drawing, the present invention is described in further detail:

[0013] like figure 1 As shown, the present invention includes a power connecting rod 1, a sliding connecting rod 2, a rod fixing clip 3, a round hole on the 3A clip, and a threaded hole on the 3B clip. Screw 4. Needle clip 5, needle clip cover 5A and needle clip pad 5B. Fixed steel needle (or threaded steel needle) 6. Nut 7, round nut 7A and hex nut 7B. Sliding bodies inserted on the two connecting rods (all sliding bodies have the same structure) 8, horizontal unthreaded "D"-shaped hole 8A, inserted sliding rod, vertical unthreaded "D"-shaped hole 8B, round hole 8C, concave-convex tooth surface (The opposite side is also a concave-convex tooth surface) 8D, a circular threaded hole 8E. The ear-shaped body 9, the bottom surface of the ear-shaped body 9A and the ear-shaped body surface 9B are concave-convex tooth surfaces, and circular threaded holes 9C and 9D.

[0...

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Abstract

The invention discloses a double-track type external fixed bracket and relates to an external fixed device in which limb bone fractures are not connected with bones. The double-track type external fixed bracket mainly comprises a power connecting rod with threads, a sliding connecting rod without threads, 4-6 sliding bodies and an ear-shaped body. During use, the double-track type external fixed bracket can apply the pressure, extend and three-dimensionally fix among bone sections in a multi-plane, thereby providing former fixation at early stage, fully avoiding the stress shielding effect atthe middle and later stages, according with the biological fixation and promoting the callus growth. The invention can be applied to the disconnection of limb bones, bone disconnection with bone defect and traumatic fracture including metaphysic fracture.

Description

Technical field: [0001] The invention relates to an external fixation device for bone fractures and non-union of limbs. Background technique: [0002] At present, the devices for external fixation mainly include combined multifunctional external fixation brackets, external fixation brackets such as groove type, unilateral, and bilateral, and the unilateral external fixation brackets are divided into two types: straight type and T-type. The functions of these external fixation brackets are relatively limited, and compression, elongation, and multi-plane three-dimensional fixation cannot be performed at the same time, and the stress shielding effect cannot be fully avoided in the middle and late stages of fracture. Invention content: [0003] The purpose of the present invention: 1. To provide relatively strong fixation in the early stage, while the fracture end can be pressurized, and to fully avoid the stress shielding effect in the middle and late stages; 2. To provide as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/66
Inventor 方玉树
Owner 方玉树
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