Kunwoo Lee;Curtis W. Frank;Michael L. Reo;Uriel Hiram Chee;In Haeng Cho;Sun-Kyu Ha;Daniel H. Kim;Thomas A. Afzal
发明人:
Daniel H. Kim,Thomas A. Afzal,Michael L. Reo,Uriel Hiram Chee,In Haeng Cho,Kunwoo Lee,Curtis W. Frank,Sun-Kyu Ha
申请号：
US13563303
公开号：
US20120296431A1
申请日:
2012.07.31
申请国别(地区):
US
年份:
2012
代理人:
摘要：
Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the sagittal plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.
