A method for establishing a surgical port for endoscopic or arthroscopic surgery is disclosed. A trocar is initially provided, and the obturator of the trocar includes a flat cutting blade, a shield that moves proximally and distally from a precock position to an extended position, a precock lever to...http://www.google.fr/patents/US6017356?utm_source=gb-gplus-shareBrevet US6017356 - Method for using a trocar for penetration and skin incision
Method for using a trocar for penetration and skin incision
