Michael E. Miller,Jake Flagle,Joseph L. Mark,Zachary R. Nicoson
申请号：
US11865092
公开号：
US08202229B2
申请日:
2007.10.01
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A surgical device is disclosed. The surgical device comprises an outer sleeve, a cutting element, a spool, a piston, and a spring. The cutting element extends from the outer sleeve at the distal end of the outer sleeve. The cutting element comprises an outer cannula and an inner cannula. The spool is engaged with the outer cannula. The piston is engaged with the inner cannula. A spring is positioned between the spool and the piston. The spool is translated distally to translate the outer cannula towards the distal end. And the piston translates the inner cannula towards the distal end to sever tissue.
