Anwar Upal;Michael J. O'Neil;Michael Andrew Slivka;Michael Fisher;John Riley Hawkins
发明人:
John Riley Hawkins,Anwar Upal,Michael J. O'Neil,Michael Andrew Slivka,Michael Fisher,Michael J. ONeil
申请号：
US11768636
公开号：
US08900307B2
申请日:
2007.06.26
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A two-piece fusion cage having ramped interior surfaces. One advantage of such a cage is its easy insertion. In a first step, the lower component is inserted into the disc space and is held in place. The first step confirms placement of the implant and its footprint. In a second step, the upper component is inserted into the disc space by sliding its interior surface along the opposed interior surface of the lower component. This two-step method of insertion eliminates the need to provide an independent distraction means.
