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US08821577B2 Intervertebral disk prosthesis 有权
椎间盘假体

Intervertebral disk prosthesis
Abstract:
An intervertebral disk prosthesis (4), comprising: a rigid top plate (5); a rigid bottom plate (6); and an elastically-compressible intermediate cushion (7) received between the two inside surfaces of the plates (5, 6); remarkable in that the assembly is subdivided in the thickness direction into two units resting one on the other via complementary contact surfaces.
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