| 摘要 |
An anchor is provided and includes a hub having a trailing edge, and first and second jaws, each including a body pivotably coupled to the hub and an actuator to induce pivoting of the body, the jaws being initially proximal with the bodies cooperatively forming a lead profile such that the jaws and the hub are configured to penetrate a substrate, separable responsive to fastener insertion through the hub whereby the fastener exerts a first force on the actuators causing splay pivoting of the bodies, and at least partially closeable responsive to continued fastener insertion whereby the fastener exerts a second force on the actuators causing reverse pivoting of the bodies to draw the trailing edge toward the actuators about the substrate. |
