Jörn Richter,Christopher L. Ramsay,Paul Maguire,John C. Voellmicke
申请号：
US16352654
公开号：
US20190209154A1
申请日:
2019.03.13
申请国别(地区):
US
年份:
2019
代理人:
摘要：
An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.
