Mixed external fixer based on needle flexible adjustment

An external fixator and hybrid technology, applied in the field of orthopedic rehabilitation medical equipment, can solve problems such as flexible adjustment and precise positioning difficulties, and achieve the effect of simple structure, low manufacturing cost, and small footprint

Inactive Publication Date: 2018-08-10
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a hybrid external fixator that has a large needle adjustment range and great flexibility and can be applied to multiple parts such as the humerus, tibia, and phalanges at the same time, to solve the problem of flexible adjustment and precise positioning of the needle problems, and the structure is simple and easy to use

Method used

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  • Mixed external fixer based on needle flexible adjustment
  • Mixed external fixer based on needle flexible adjustment
  • Mixed external fixer based on needle flexible adjustment

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Embodiment Construction

[0033] Such as Figure 1-Figure 10 As shown, a hybrid external fixator based on needle flexible adjustment, including thread (2), threaded needle (28), needle (32), ring (6), phalanx needle (10), fixation rod (1), Rod clamp (3), loop fixation wire clamp (4), loop fixation needle clamp (5), single needle clip (7), double needle clip (8) and phalanx pin clip (9): Before the operation, first place the The fixed rod clamp (3) is positioned in the middle of the ring (6): Insert the fixed rod clamp (14) into the upper surface of the ring (6), and use the ring clamp fastening screw (15) to fix the fixed rod clamp (14) ) on the upper surface of the ring (6), adjust the position of the ring (6) on the fixing rod (1) according to the insertion position of the humerus, and tighten the lock nut (11) to fix the ring (6) and the fixing rod ( 1) The relative position. During the operation, also according to the position of the humerus and the wire insertion, determine the angles and orient...

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Abstract

The invention discloses a mixed external fixer based on needle flexible adjustment, and can be applied to the field of orthopedic surgery. A ring is connected with a fixed rod through a fixed rod clamp; the ring can realize adjustment in the longitudinal direction through the fixed rod; a ring fixed line clamp and a ring fixed needle clamp are connected with the ring; the fact that humerus is fixed in the ring at any angle can be realized; the ring fixed needle clamp can realize fixing of a tibia joint in the ring at any angle, and can realize position adjustment and positioning in the longitudinal direction of the fixed rod. A double-needle clamp and a single-needle clamp mainly realize the fixing of a tibia part, and can realize 360-degree angle positioning around the fixed rod and fixing in the longitudinal direction of the fixed rod. A phalanx needle realizes 360-degree angle adjustment around the fixed rod and fixing in the longitudinal direction. The mixed external fixer is largein adjustment range and high in flexibility, can be applied to multiple parts, such as humerus, tibia and phalanx, at the same time, meanwhile solves the problems that needle flexible adjustment andaccurate positioning are difficult, and is simple in structure and low in cost.

Description

technical field [0001] The invention belongs to the field of orthopedic rehabilitation medical equipment, and in particular relates to a flexible-adjustable hybrid external fixator device based on needles. Background technique [0002] Human lower extremity fractures are a common orthopedic disease with a large number. The traditional method of treating this disease is immobilization with plaster, traction or open reduction and internal fixation. With the development of external fixation technology, external fixation bracket has become one of the more important tools in orthopedic treatment and has been widely used. , they basically hold the broken bones tightly together. These external fixators are not only a relatively rough splint or cast, but also include a variety of more modern and complex external fixation systems, including Llizarow ring external fixator, tubular external fixator, and unilateral powered unilateral external fixator. fixer etc. These commonly used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/62A61B17/64
CPCA61B17/62A61B17/645A61B2017/606
Inventor 李剑锋赵霞张雷雨胡晓洁陈莹
Owner BEIJING UNIV OF TECH
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