A cage that can be freely extended in length

Abstract

The invention relates to a mesh cage whose length can be freely stretched and changed in the field of medical orthopedics, and solves some problems such as difficulty in placing the titanium alloy mesh cage in the orthopedic surgery at present. The technical solution is: through two outer tube medical mesh cages and one inner tube mesh cage, they are connected by guide rails to form a freely telescopic and movable mesh cage. During work, a shorter mesh cage can be put into the lesion space first, and then Then it is stretched to a suitable length, which avoids the stimulation and damage to the surrounding important tissues during the current placement process, improves the safety of the operation, and improves the operation efficiency at the same time. At the same time, a window is provided on the outer wall of an outer mesh cage, through which bone can be filled, which improves the convenience of bone tissue placement and ensures the quality of operation. The freely expandable mesh cage designed by this scheme can realize the automatic free selection of the mesh cage during the operation by adopting a serial combination of outer tubes, which further improves the operation efficiency.

Description

technical field [0001] The invention belongs to the field of medical orthopedics and relates to a mesh cage with variable length, in particular to a titanium alloy mesh cage whose length can be freely stretched or shortened. Background technique [0002] With the development of society and economy, the average life expectancy is extended, traffic accidents, falling injuries from heights, and chronic strains are increasing, and the incidence of spinal cord injuries caused by acute trauma and chronic diseases of the cervical, thoracic, and lumbar spine has risen sharply. Diagnosis and treatment of this disease often requires Perform orthopedic surgery. During the operation, it is often necessary to decompress the spinal column and spinal cord of the diseased segment, and apply a bone-filled titanium alloy mesh channel, that is, a mesh cage, for fusion and fixation to the decompressed area. The titanium alloy mesh cage is light in weight and high in rigidity, and can effective...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the patent of the present invention is to provide a titanium alloy mesh cage whose length can be freely expanded, so as to solve a series of problems such as difficulty in placing the titanium alloy mesh cage in orthopedic surgery.

A variable-length mesh cage is designed in a combined way, and a shorter mesh cage is placed in the effective lesion space at first, and then stretched to the required length for fixation, which solves the problem of difficulty in placing the titanium alloy mesh cage and improves the efficiency and efficiency of surgery. quality

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