SPINAL DISK PROSTHESIS, SPINAL DISK PROSTHESIS RING PART, SPINAL DISK PROSTHESIS PULPY NUCLEUS PART, SPINAL DISK PROSTHESIS END PLATE, AND METHOD FOR TRANSPLANTING SPINAL DISK PROSTHESIS

摘要

PROBLEM TO BE SOLVED: To replace a natural human spinal disk that has been damaged by trauma or disease.;SOLUTION: The subject spinal disk prosthesis 10 has a flexible pulpy nucleus part 120 filled with fluid, a ring part 140 made of fiber fabric with flexibility, and a pair of end plates 100a, 100b made of metallic fabric. The end plates 100a, 100b are equipped with macroscopic fixing means for initial fixing to a neighboring bone and a bone growing surface to allow a bone to grow the inside. Further, the spinal disk prosthesis 10 has a structure and a shape which are almost anatomically suitable.;COPYRIGHT: (C)2004,JPO