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Inferior tibiofibular syndesmosis separation binding elastic fixation cable system

An elastic fixation and rope technology, applied in the field of medical devices, can solve the problems of damage to the peroneal artery and its perforating branches, and achieve the effect of solving space occupation and improving accuracy

Active Publication Date: 2022-03-04
青岛山大齐鲁医院(山东大学齐鲁医院(青岛))
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lateral elastic fixation of the loop plate and cable system is similar to the inferior tibiofibular screw fixation. It is inserted horizontally across the tibia and fibula from about 2-3 cm above the level of the ankle joint, and the perforated branch of the peroneal artery is about 3 cm above the level of the ankle joint from back to front. Crosses the interosseous membrane, so the risk of injury to the peroneal artery and its perforating branches is greater with lateral elastic fixation

Method used

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  • Inferior tibiofibular syndesmosis separation binding elastic fixation cable system
  • Inferior tibiofibular syndesmosis separation binding elastic fixation cable system
  • Inferior tibiofibular syndesmosis separation binding elastic fixation cable system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A lower tibiofibular syndesmosis separation binding elastic fixed cable system, including a cable tension measuring device and a cable fixing device, the cable tension measuring device includes a hollow cylindrical shell 1, a spring adjustment nut 2, The spring adjusts the threaded sleeve 3, the end cap 31 and the spring 4, the inner surface of one end of the housing 1 is provided with an annular protrusion 11, and the two sides of the inner surface are provided with groove-shaped guide rails 12; the side of the housing is dug 16 to facilitate hanging ropes cable; the other end of the casing 1 is inserted into the cable fastening device, and digs 17 on both sides of the cable fastening device end to facilitate screwing in the cable fastening device; The shell is placed on the surface of the bone 8 to generate an inclination; the inner side of the spring adjustment nut 2 is provided with an internal thread, and the outer surface is set in a stepped shape. The outer surfac...

Embodiment 2

[0029] On the basis of Embodiment 1, the side of the housing 1 is symmetrically provided with a strip-shaped opening 14, and one end of the spring 4 is fixed to the tightening column 7, and the two ends of the tightening column 7 pass through the strip-shaped opening 14, and set With set nut.

[0030] In order to further improve the accuracy and avoid the influence of the pulling force produced during the downward tightening of the cable on the tension of the cable, a tightening column 7 is provided. After the spring 4 adjusts the tension of the cable, the tightening column 7 fixes the spring 4, Tighten the rope at this time, effectively avoiding the influence of the pulling force on the tension.

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Abstract

The invention relates to the field of medical equipment, in particular to a lower tibia-fibular syndesmosis separation and binding elastic fixing cable system, comprising a cable tension measuring device and a cable fixing device, wherein the cable tension measuring device comprises a hollow cylindrical The outer shell, spring adjustment nut, spring adjustment threaded sleeve, end cover and spring, the inner side of one end of the outer casing is provided with an annular protrusion, and both sides of the inner side are provided with groove-shaped guide rails; ; The other end of the shell is sleeved with a cable fastening device, and the two sides are dug out to facilitate screwing into the cable fastening device, and the shell is not cut out to prevent the shell from tilting when it is placed on the bone surface. The invention is designed to improve the accuracy of bundling and elastically fix the cable tension of the lower tibia-fibular syndesmosis, thereby solving the problem of uneven distribution of cable tension, and the fixation devices at both ends are placed in the cortical bone to solve the problem of occupying space in the soft tissue, which is a clinical provide a more scientific basis.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a lower tibiofibular syndesmosis separation binding elastic fixation cable system. Background technique [0002] Ankle fractures associated with syndesmotic ligament injuries are relatively common clinically, and 15-23% of ankle fractures associated with syndesmotic ligament injuries require precise reduction and fixation. If the treatment is not timely or inappropriate, chronic pain, joint instability and traumatic arthritis often remain, seriously affecting the function of the ankle joint. [0003] The inferior tibiofibular screw recommended by the AO organization was first applied to the injury of the inferior tibiofibular syndesmosis. The biomechanics and clinical efficacy showed that its fixation effect was reliable, ensuring the stability of the ankle joint, but it lost the compliance of the inferior tibiofibular syndesmosis to the ankle point during exercise. Sexual adjustm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/68
CPCA61B17/68
Inventor 赛佳明
Owner 青岛山大齐鲁医院(山东大学齐鲁医院(青岛))
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