Surgical access system and related methods

摘要

A surgical access system including a tissue distraction assembly and a tissue retraction 5 assembly (10), 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 before, during, and after the establishment of an operative corridor to a surgical target site. R:/MPatems/768963/epIaced speak pages - 27 Nov 08 doc