Self-stabilization type extreme lateral approach intervertebral fusion cage

The invention discloses a self-stabilization type extreme lateral approach intervertebral fusion cage. The self-stabilization type extreme lateral approach intervertebral fusion cage comprises a fusion cage body approximate to a cuboid shape, wherein the fusion cage body is composed of an adjustment end and an expansion portion, the expansion portion is composed of an a ringent upper expansion body and a ringent lower expansion body. The self-stabilization type extreme lateral approach intervertebral fusion cage is characterized in that a holding and taking hole is formed in the middle of the adjustment end of the fusion cage body, an upper limb and a lower limb are respectively arranged at two ends of the adjustment end, connection holes are respectively formed in the upper limb and the lower limb, the connection holes are provided with universal sphere type lock sleeves, threads are arranged in the inner walls of the lock sleeves, and lock nails pass through the lock sleeves and the connection holes, and lock threads connected with the threads in the inner walls of the lock sleeves are arranged at the tail end of the lock nails. When the self-stabilization type extreme lateral approach intervertebral fusion cage is used, the fusion cage body is loaded to a clamping ring and then implanted to a human intervertebral space, and the lock nails are allowed to pass through the clamping ring and implanted to an upper centrum and a lower centrum, and furthermore the universal sphere type lock sleeves are used for adjustment so as to achieve a best position. The self-stabilization type extreme lateral approach intervertebral fusion cage does not need an additional steel screw to be implanted by pass or a screw rod to be implanted from the rear, has the advantages of being small in incisura, convenient in operation and small in trauma, and not needing a second operation and the like.