Coil-spring shaped bone external fixator

An external fixator and fixator technology, applied in the directions of external fixator, fixator, internal fixator, etc., can solve the problems of large trauma in bracket installation and complicated fixation operation, so as to reduce difficulty, save materials, and improve the convenience of installation Effect

Inactive Publication Date: 2015-02-04
SUZHOU RENJIERUI AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the technical problems of large trauma and complicated fixation surgery in the prior art, and provide an orthopedic fixation bracket with less trauma to the installer, which can reduce or even require secondary surgery

Method used

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  • Coil-spring shaped bone external fixator
  • Coil-spring shaped bone external fixator
  • Coil-spring shaped bone external fixator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The external bone fixator mainly includes a number of longitudinal fixators and connecting brackets used to connect and fix each longitudinal fixator. At the same time, there are external fixators used to fix the limbs at both ends of the bracket. This product is mainly used for bone fixation. The longitudinal fixer is improved and the original steel nail fixation is cancelled;

[0043] Specific as figure 1 As shown, the longitudinal outer frame of this product is in the shape of a coil spring, and the bone surface fixation assembly is arranged inside the longitudinal outer frame. , the fixed block is fixed on the fixed outer frame 2, and the fixed cables 3 are positioned between the fixed blocks on the fixed outer frame 2 to form a support frame;

[0044] where fixed blocks (such as Figure 4 shown) includes a sliding hole 1-2 for fitting the fixed block 1 onto the fixed outer frame 2, a locking screw B is arranged on the inner wall of the sliding hole 1-2, and a A ...

Embodiment 2

[0052] Such as image 3 As shown, it is a schematic diagram of the present invention when performing multiple bone fixation;

[0053] The external bone fixator mainly includes a number of longitudinal fixators and connecting brackets used to connect and fix each longitudinal fixator. At the same time, there are external fixators used to fix the limbs at both ends of the bracket. This product is mainly used for bone fixation. The longitudinal fixer is improved and the original steel nail fixation is cancelled;

[0054] Specific as figure 1 As shown, the longitudinal fixer in this product mainly includes several fixing blocks 1, and fixed cables 3 are arranged between the fixing blocks 1, and the fixing blocks are fixed on the fixing outer frame 2, and the fixing cables 3 The positioning of the fixed block on the fixed outer frame 2 forms a support frame;

[0055] where fixed blocks (such as Figure 4 shown) includes a sliding hole 1-2 for fitting the fixed block 1 onto the ...

Embodiment 3

[0060] At the same time, the present invention can cross-connect the fixed cables between the fixing blocks of different longitudinal anchors, for example, there are three longitudinal anchors for fixing, including longitudinal anchor A, longitudinal anchor B, and longitudinal anchor C , each vertical fixer includes 4 fixing blocks, among which the four fixing blocks of longitudinal fixer A are respectively marked as fixed block AI, fixed block AII, fixed block AIII, and fixed block AIV. The fixed block AI on A can be connected with the fixed block BII of the longitudinal fixer B through a fixed cable, and at the same time, the fixed block AII on the longitudinal fixer A and the fixed block CIV on the longitudinal fixer C are connected through a fixed cable, Two fixed cables form a supporting frame in contact with the bone surface.

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Abstract

The invention relates to a coil-spring shaped bone external fixator which comprises a bone surface fixing assembly, a body external fixator and a longitudinal external frame; the longitudinal external frame is shaped as a coil spring; the bone surface fixing assembly comprises a plurality of fixing blocks; fixed cables are arranged among the fixing blocks; the fixing blocks are fixedly arranged on the longitudinal external frame; the fixed cables define a support frame by means of the fixing blocks. According to the coil-spring bone external fixator, by match of the external frame and tensioning wires, the tensioning wires with smaller diameters form one or more fixed meshes under the support of the external frame, and thus the matching with bones is realized. Since the tensioning wires are low in elasticity, the fixation of the bones can be ensured, and osteonecrosis caused since the surfaces of the bones are excessively compressed by the tensioning wires can be avoided.

Description

technical field [0001] The invention relates to a coil-spring external bone fixator, in particular to a bone external fixator using cables for bone fixation. Background technique [0002] In the process of orthopedic treatment such as fractures, various brackets are often used to penetrate the skin surface after surgery to fix the bones to restore them. After recovery, the brackets are removed through trauma surgery. The whole process requires multiple operations. The trauma caused to the human muscle and epidermis is relatively large, and the postoperative recovery period is relatively long. At the same time, the traditional brackets cause relatively large compression and trauma to the bone; [0003] In this regard, on the market now, many orthopedic fixators that can reduce the degree of trauma during surgery and reduce the number of operations to a certain extent, and can accelerate healing at the same time, such as the invention of ZL201120537796.6, which proposes a meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/60A61B17/82
CPCA61B17/00234A61B17/60A61B17/62A61B17/64A61B17/6441A61B17/645A61B17/66A61B17/82A61B2017/00238A61B2017/00831A61B2017/564A61B2017/606A61L31/022A61L31/06A61L31/148C08L67/04
Inventor 罗先军
Owner SUZHOU RENJIERUI AUTOMATION TECH
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