Mark Weiman,Chad Glerum,Alex Burkhardt,Kevin Gahman
申请号:
US15805605
公开号:
US20180064552A1
申请日:
2017.11.07
申请国别(地区):
US
年份:
2018
代理人:
摘要:
An expandable fusion device may include a first endplate and a second endplate. The expandable fusion device may also include first and second ramps configured to mate with both the first and second endplates. The first ramp may include a mating feature having a first angle relative to a vertical axis, and the second ramp may include a mating feature having a second angle relative to the vertical axis such that the first angle is different from the second angle. In particular, the first and second ramps may be configured to provide for symmetrical expansion of the first and second endplates.