A self-guided distraction endoscopic fixable intervertebral fusion cage

Abstract

The invention relates to a self-guided distraction endoscopic fixable intervertebral fusion device, which includes a driving distraction structure, a fusion body, a combination body and a fixable device; the driving distraction structure includes a driving screw, a distraction body and a propulsion assembly; the fusion body The center of the shaft is provided with a cylindrical shaft groove extending in the axial direction; the driving expansion structure is arranged in the cylindrical shaft groove and can slide along the axial direction of the cylindrical shaft groove; the driving screw is used to drive the expansion body in the cylindrical shaft groove through the push assembly Axial sliding along the cylindrical shaft groove; during the sliding process, the expansion body changes from the unexpanded state to the expanded state; when the expansion body is in the expanded state, the intervertebral cage is expanded to four sides and The volume becomes larger; the combined body is used to connect the fusion body with the bone graft sleeve under the microscope; the fixable device includes a fixed blade; one end of the fixed blade is rotatably connected to the combined body through the door shaft system; the other end of the fixed blade is set There is a hollow screw hole, and when the fixed blade is not opened, the driving screw passes through the hollow screw hole.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a self-guiding distraction endoscope fixable intervertebral fusion device. Background technique [0002] With the changes in human living habits and working methods, spine-related diseases have become important diseases that affect people's quality of life and level. When the condition of the disease is severe or conservative treatment is ineffective, clinicians mostly adopt intervertebral fusion with intervertebral cage and bone graft for surgical treatment, and relatively ideal clinical curative effect has been achieved. [0003] With the continuous innovation of minimally invasive spinal surgery techniques and the gradual application of tunnel or endoscopic surgery in spinal surgery-related diseases, more and more clinicians and patients tend to treat diseases through minimally invasive surgery. However, most of the minimally invasive surgical techniques use channel-a...

AI Technical Summary

Problems solved by technology

Intervertebral fixation and fusion are often separate and cannot be completed in one stop

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