Powered surgical instrument
First Claim
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 Assignments
0 Petitions
Accused Products
Abstract
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.
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Citations
2 Claims
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1. The A surgical instrument, comprising:
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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.
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2. A surgical instrument, comprising:
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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.
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Specification