Spinal Kinetics, Inc.

Sun-Kyu Ha

Daniel Huan Kim

Michael Lawrence Reo

Thomas A Afzal

Kunwoo Lee

In Haeng Cho

Curtis W Frank

Uriel Hiram Chee

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.

Prosthetic intervertebral disc implants

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Ansan-si, South Korea

Sun-Kyu Ha