3 results about "Lumbar spinal stenosis" patented technology

The body structure of the full-porous thoracolumbar fusion cage is a porous octahedron, and the full-porous thoracolumbar fusion cage comprises an upper front end, a lower front end, a front end, a tail end, an upper contact surface, a lower contact surface and double side surfaces, the tail end is provided with an operation fixing hole and a clamping groove; and the upper contact surface and the lower contact surface are provided with connecting beams and convex tooth surfaces. The structural unit of the porous octahedron of the full-porous thoracolumbar fusion cage body is of an arch-imitating structure, more growth space can be provided for cells, and cell ingrowth is facilitated. The surgical fixing hole and the clamping groove can be used in cooperation with surgical instruments, and a reliable mechanical fixing structure is provided for the fusion cage. The upper convex tooth surface and the lower convex tooth surface can maintain the stability after the fusion cage is implanted. The full-porous thoracolumbar fusion cage can form a tight bonding interface with human tissues, the mechanical property of the full-porous thoracolumbar fusion cage is matched with that of the human tissues, and the full-porous thoracolumbar fusion cage can be applied to diseases such as thoracolumbar degenerative change and lumbar spinal stenosis.

The invention discloses a titanium alloy bone grafting bed which comprises two half vertebral plates which are symmetrically arranged, each half vertebral plate comprises a main body and a connector, each main body is in a flat plate shape, a plurality of through holes which are distributed in a display mode are formed in each main body, each through hole is a round hole with the diameter of 2.5 mm-3 mm, and a clamping column is arranged on the side edge of each main body; a first opening groove is formed in one end of the connector, the first opening groove can be clamped to the clamping column from bottom to top, a first stud is installed in the first opening groove so as to be pressed on the clamping column, a second opening groove is formed in the other end of the connector, and a fixing hole is formed in the top of the second opening groove. The second open groove can be placed on a screw rod of a pedicle screw rod system in a spinal canal decompression operation of lumbar spinal stenosis, and a second stud is installed in the fixing hole so as to be pressed on the screw rod.

The utility model discloses an easy assembly titanium alloy lamina relates to a lamina for lumbar spinal stenosis spinal decompression, and its purpose is to provide a kind of lamina with lamina repair, bone graft bed amplification, dura mater sac protection function's lamina.The easy assembly titanium alloy lamina includes two symmetrical half lamina, and half lamina includes lamina main part, saddle hook and fixing part, the surface of lamina main part is processed with multiple uniform arrangement micropore, and the side of lamina main part is provided with side plate;The end of saddle hook is connected with side plate, and the front end of saddle hook is provided with fixed hole;Fixing part is arranged in fixed hole, and saddle hook can be buckled on the nail stick in the spine nail stick system, and fixing part is used for fixing saddle hook on nail stick.