James Coleman Lee,Benjamin Verhage,Michael Serra,Troy B Woolley,Brian Snider,Matthew Schwartz
申请号:
US15288614
公开号:
US09924859B2
申请日:
2016.10.07
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A surgical access system comprising a tissue dilation assembly and a tissue retraction assembly, both of which may be equipped with one or more electrodes for use in detecting the existence of (and optionally the distance and/or direction to) neural structures.