Distal tibiofibular bionic fixing system

A fixing system and fixing sleeve technology, applied in the field of medical devices, can solve problems such as inconvenient use, easy skin irritation, and fixation failure, and achieve the effects of reducing costs, improving therapeutic effects, and adjusting tension conveniently

Active Publication Date: 2021-12-17
张英泽 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It still has the following disadvantages: if the screw is too long, it is easy to irritate the skin, and if it is too short, the nut structure is easy to loosen and the fixation fails. In order to improve the treatment effect and fixa

Method used

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  • Distal tibiofibular bionic fixing system
  • Distal tibiofibular bionic fixing system
  • Distal tibiofibular bionic fixing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Please check Figure 1 to Figure 8 , the lower tibiofibular bionic fixation system, including a fixation mechanism at the end of the fibula, a bolt 2, a fastening cable 3 and a locking nut 4 on the tibial side, the fixing mechanism includes a baffle 1, and the fastening cable 3 is connected between the baffle 1 and the tibial side. Between the bolts 2, the lock nut 4 is screwed on the bolt 2. The outer periphery of the bolt 2 is recessed with a plurality of breaking grooves 21 arranged at intervals along the axis of the bolt and in a ring structure. The breaking groove 21 is from the notch to the groove. The width of the bottom is gradually reduced, such as a tapered or trapezoidal structure, so that the bolts can be easily broken; multiple breaking grooves 21 are provided, so that they can be broken at different positions during the operation, so that one system can be adapted to different patients and reduce costs , improve the therapeutic effect. The fastening cord ...

Embodiment 2

[0039] Please check Figure 9 to Figure 15 , it differs from Embodiment 1 in that: the fixing mechanism includes a fixing sleeve 51 and a fibula plate 52; the fixing sleeve 51 includes a connecting sleeve 511 and an enlarged cover formed by extending backward from the rear peripheral edge of the connecting sleeve 511. 512, the expansion cover 512 is fixed with a fixed pin 513; the fibula plate 52 can be attached to the distal end of the fibula and has a mounting hole 521 arranged through it, and the connecting sleeve 511 of the fixing sleeve 51 is inserted into the mounting hole 521 from back to front, The enlarged cover 512 and the fibula plate 52 push against each other, and the mounting hole is provided with a stepped hole as required, and the enlarged cover is adapted to be connected to the large hole section of the stepped hole; the rear part of the fastening cable 3 is installed in the fixed sleeve 51 And the two ends of the rear pass through both sides of the fixed pin ...

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PUM

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Abstract

The invention discloses a distal tibiofibular bionic fixing system which comprises a fixing mechanism at the fibula end, a bolt, a fastening rope and a locking nut on the tibia side, the fastening rope is connected between the fixing mechanism and the bolt, the locking nut is connected to the bolt in a threaded mode, a plurality of breaking grooves which are arranged along the axis of the bolt at intervals and are of an annular structure are formed in the periphery of the bolt in a concave mode, the breaking grooves can be broken in different positions as needed, and the broken end is not too long to stimulate the skin and not too short to loosen the nut, so that one system can adapt to different patients, the cost is reduced, and the treatment effect is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a bionic fixation system for lower tibia and fibula. Background technique [0002] The inferior tibiofibular joint is composed of three parts: ligament syndesmosis, folds and bony junction. The structure is firm and elastic, and it is an important stable structure to ensure the normal movement of the ankle joint. Syndesmotic separation of the inferior tibia and fibula is a common clinical injury that can lead to ankle instability, which may lead to secondary osteoarthritis and aggravate ankle damage. The key to this treatment is accurate and effective reduction and fixation. Currently, tension nails placed 2-3 cm above the joint are still considered the standard fixation method by the Association of Internal Fixators (AO / ASIF). However, this rigid fixation method limits the physiological micro-motion of the lower tibia and fibula against early rehabilitation training. I...

Claims

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Application Information

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IPC IPC(8): A61B17/80A61B17/86
CPCA61B17/8061A61B17/808A61B17/8605
Inventor 张奇陈伟赵明明林志雄张英泽王建雄郭晓勇蔡国雄
Owner 张英泽
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