| 摘要 |
A spine fusion cage comprises a housing, a movable member, a sliding member and a screw. The upper surface of the housing has an opening through which the movable member can move in a vertical direction. The sliding member is provided within the housing and can move in a longitudinal direction of the spine fusion cage. The movable member has an activation surface. In the case that the activation surface is in contact with the sliding member, movement of the sliding member in the longitudinal direction of the spine fusion cage causes the movable member to move up or down. The sliding member is moved by turning the screw such that the movable member can move up or down.
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