Frederick E. Shelton, IV;Richard W. Timm; IV;Frederick E. Shelton
发明人:
Frederick E. Shelton, IV,Richard W. Timm
申请号：
US13020053
公开号：
US08196796B2
申请日:
2011.02.03
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A surgical instrument including a drive mechanism configured to advance a staple driver and/or cutting member at a first rate and retract the staple driver and/or cutting member at a different rate. In at least one embodiment, the rate at which the driver and cutting member is advanced and/or retracted is the distance that the driver and/or cutting member is translated per actuation of a trigger, for example. In various embodiments, the cutting member can be retracted at a faster rate as compared to the rate in which it is advanced. In such embodiments, the surgical instrument can, owing to the slower advancing rate, provide a greater torque or advancing force to the cutting member while, owing to the faster retracting rate, reduce the time required for the surgeon to retract the cutting member.
