| 主权项 |
1. A surgical instrument, comprising:
an end effector assembly movable between a first position and a second position; first and second handles, each handle pivotable about a first end thereof and extending to a second end thereof, the second ends of the handles movable relative to one another between a spaced-apart position and an approximated position; and a drive assembly, including:
a drive bar coupled to the end effector assembly at a distal end of the drive bar such that translation of the drive bar relative to the end effector assembly effects movement of the end effector assembly between the first and second positions; anda biasing member defining a first end, a second end, and an intermediate portion disposed between the first and second ends, the first end of the biasing member coupled to the first handle adjacent the second end of the first handle, the second end of the biasing member coupled to the second handle adjacent the second end of the second handle, and the intermediate portion of the biasing member coupled to the drive bar, wherein movement of the handles from the spaced-apart position to the approximated position urges the first and second ends of the biasing member towards one another such that the intermediate portion of the biasing member is displaced relative to the first and second ends of the biasing member, displacement of the intermediate portion urging the drive bar to translate relative to the end effector assembly to effect movement of the end effector assembly between the first and second positions. |
