Chad P. Boudreaux,Michael J. Andreyko,Gregory A. Trees
申请号：
US12576776
公开号：
US08939974B2
申请日:
2009.10.09
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A surgical instrument can comprise a first drive system for advancing a knife bar between a first position and a second position in order to close a jaw, or clamping, member of an end effector. The first drive system can comprise a toggle clamp which can generate and transmit an asymptotical clamping load to the jaw member. The surgical instrument can further comprise a second drive system for advancing the knife bar between the second position and a third position. The second drive system can comprise a rack and pinion system and the surgical instrument can comprise a single trigger for actuating both the first drive system and the second drive system on the same stroke.
