ARTIFICIAL DISC PROSTHESIS

摘要

A visclo-elastic motion limiting artificial intervertebral disc prosthesis (10) is provided that mimics the physiologic function of the normal spinal disc. The disc comprises upper and lower endplates (30) having therewith channels or openings (271) for optionally receiving one or more motion limiting members (80) fitted on each end with an enlarged portion. One or more compression stops (370 is provided between the upper and lower endplates (30). Additionally, an elastomeric cushion (40) is dispoed between the endplates and surrounds the motin limiting members. Also, force transducers and microelectronics can be utilized to provide data to the surgeon or the patient regarding theload state of the disc.