| 摘要 |
PURPOSE: An intervertebral cage having flexibility is provided to absorb an impact applied to the backbone by obtaining the elasticity coefficient corresponding to the waist load. CONSTITUTION: An intervertebral cage having flexibility comprises a housing, a first elastic member, and a second elastic member. The housing(2) provides self-inherent elasticity in order to replace the role of a normal disk by absorbing the load by oppression. The first elastic member(12) is buffered upward and downward by an internal space. The first elastic member and second elastic member(14) provide buffer force. |
