Powered surgical instrument
View Patent ↗A surgical instrument including a housing, an endoscopic portion, a drive motor, a drive tube, a firing rod and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a first longitudinal axis. The drive motor is disposed at least partially within the housing. The drive tube is disposed in mechanical cooperation with the drive motor and is rotatable about a drive tube axis extending through the drive tube. The firing rod is disposed in mechanical cooperation with the drive tube and at least a portion of the firing rod is translatable with respect to the drive tube. The end effector is disposed adjacent a distal portion of the endoscopic portion and is in mechanical cooperation with the firing rod so that the firing rod drives a surgical function of the end effector.
1. The A surgical instrument, comprising:
a housing;
an endoscopic portion extending distally from the housing and defining a first longitudinal axis;
a drive motor disposed at least partially within the housing;
a drive tube disposed in mechanical cooperation with the drive motor, the drive tube being rotatable about a drive tube axis extending therethrough;
a firing rod disposed in mechanical cooperation with the drive tube, at least a portion of the firing rod being translatable with respect to the drive tube,
wherein at least a portion of the firing rod extends through an aperture of a plate, the aperture including a non-round cross-section for preventing rotation of the firing rod with respect to the plate;
wherein the plate is not rotatable with respect to the housing; and
an end effector disposed adjacent a distal portion of the endoscopic portion, the end effector being in mechanical cooperation with the firing rod so that the firing rod drives a surgical function of the end effector,
wherein a portion of the firing rod is rotatable with respect to the housing, and wherein a portion of the firing rod is not rotatable with respect to the housing.
2. A surgical instrument, comprising:
a housing;
an endoscopic portion extending distally from the housing and defining a longitudinal axis;
an end effector disposed adjacent a distal portion of the endoscopic portion, the end effector being movable to an angled position with respect to the longitudinal axis;
a drive motor disposed at least partially within the housing, the drive motor being arranged for driving a surgical function of the end effector;
an articulation mechanism for moving the end effector to the angled position with respect to the longitudinal axis;
an articulation motor for driving the articulation mechanism; and
a firing rod disposed in mechanical cooperation with the drive motor, wherein a portion of the firing rod is rotatable with respect to the housing, and wherein a portion of the firing rod is not rotatable with respect to the housing,
wherein at least a portion of the firing rod extends through an aperture of a plate, the aperture including a non-round cross-section for preventing rotation of the firing rod with respect to the plate, and
wherein the plate is not rotatable with respect to the housing.