Patent ID: 9149364
Filing Date: 2015-10-06
Classification: A61F

Abstract:
1. A method for restoring space between two adjacent vertebrae, the method comprising: providing an expandable interbody spacer capable of having a collapsed condition and expanded condition, the spacer comprising: inserting the spacer into a cavity of a vertebral column, wherein the cavity is defined by an intervertebral disc space or a space in a vertebral body; expanding the spacer from the collapsed condition to the expanded condition by moving the superior component of the spacer relative to the inferior component of the spacer such that the distal end surface of the boss member passes a top surface of at least one of the plurality of clip members such that the at least one clip member moves from the deflected position to the relaxed position, wherein moving the superior component relative to the inferior component deflects the clip members in a series to the relaxed position and allows the spacer to expand in predefined increments, wherein the expansion of the spacer provides a correction to the vertebral column; and determining the total correction made to the vertebral column by the expansion of the spacer.