Metal Rubber Based Artificial Disc Prosthesis
A technology of metal rubber and intervertebral discs, applied in the direction of spinal implants, etc., can solve the problems of not being able to take into account the support stiffness and damping energy consumption at the same time, and achieve the effects of superior performance, strong resistance to damage, and long service life
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[0016] like Figures 1~3 As shown, a metal rubber-based artificial intervertebral disc prosthesis includes an upper endplate 1, a lower endplate 3, and an outer sheath 2 surrounded by a circle between the upper endplate 1 and the lower endplate 3; the outer sheath 2 The inner side is provided with a hollow metal rubber cylinder 5 that is pressed together by the upper endplate and the lower endplate. The metal rubber cylinder is formed by braiding and punching stainless steel wires; A sleeve 701 in the hole in the body, the lower side of the upper end plate 1 is provided with a shaft 702 extending downward into the sleeve 701, the sleeve and the shaft form a sleeve assembly 7, and the circumference of the shaft 702 is evenly distributed There are multiple elastic ball moving devices 6 against the inner wall of the sleeve to reduce the frictional force between the sleeve and the shaft; the metal rubber cylinder 5 has a certain amount of preload in the axial direction to ensure b...
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