Andrew N. Hoan,Noreen Jue,Luca Pesce,Russell E. Ahlberg
申请号：
US12106227
公开号：
US08657843B2
申请日:
2008.04.18
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A shielded bladed obturator is provided with a shield lockout that prevents retraction of a shield to expose a blade for cutting. The shield lockout in one aspect has a rotational switch interacting with a longitudinal extending shield to lock and unlock the shield. A blade exposure and coverage system is also provided.
