Darrel S. Brodke,Carl Lauryssen,Frank M. Phillips,Gary A. Schneiderman,Bruce Chabansky,Calin Druma
申请号：
US13094654
公开号：
US20120277864A1
申请日:
2011.04.26
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A cannula assembly and related methods of use. The cannula assembly includes a cannula and a stylet. The cannula has an outer surface that is non-circular. Rotation of the cannula about its longitudinal axis changes the orientation of the cannulas larger outer dimension so that the cannula may be used as a distraction tool. Rotation is effected by rotating a stylet handle, which rotates the associated stylet shaft, which in turn rotates the cannula. Related methods include rotating a handle of the stylet, while the shaft of the stylet is disposed in the bore of the cannula, about the first longitudinal axis so as to rotate the cannula about the longitudinal axis to distract vertebral bodies.
