David Kravitz,Christopher Steinman,David Pettinato
申请号：
US13097898
公开号：
US20120276519A1
申请日:
2011.04.29
申请国别(地区):
US
年份:
2012
代理人:
摘要：
Disclosed is a cannula including a first clamping portion, a second clamping portion and a force applying portion configured to apply at least two different clamping forces across the first clamping portion and the second clamping portion when the cannula is in a closed state. The first clamping portion includes a first gear, the second clamping portion includes a second gear, and the first gear and the second gear are in meshing engagement.
