SURGICAL STAPLER HAVING CONTROLLABLE SHAFT BIAS

原文（中文）

A surgical instrument includes a base and a shaft extending distally from the base along a longitudinal axis. The shaft is configured to rotate relative to the base about the longitudinal axis. The surgical instrument also includes an end effector operatively coupled with the shaft. The end effector is configured to articulate relative to the shaft about an articulation joint. The end effector includes a first jaw and a second jaw configured to cooperate with the first jaw to clamp tissue. The second jaw is configured to support a stapling assembly. The surgical instrument further includes a firing assembly configured to be distally advanced through the shaft for driving distal translation of a staple actuator of the stapling assembly. The firing assembly is configured to be proximally retracted against at least one of the second jaw or the shaft to thereby apply a compression bias to the shaft.