Robotic surgical systems, instrument drive units, and drive assemblies
AssigneeCovidien LP
InventorBrian Rockrohr
Life of this patent
Estimating the term…
Abstract
A drive assembly of an instrument drive unit, is provided. The drive assembly includes a drive screw, a drive nut, a follower, a biasing element, and a drive element. The drive nut is threadedly engaged with a threaded portion of the drive screw such that rotation of the drive screw results in longitudinal movement of the drive nut. The follower is longitudinally slidable with respect to the drive screw. The biasing element is disposed in mechanical cooperation with the drive nut and the follower. The drive element is disposed in mechanical cooperation with the follower. Longitudinal translation of the drive element is configured to drive a function of the surgical instrument.
Claims18
A drive assembly of an instrument drive unit for use with a surgical instrument, the drive assembly comprising:
- a drive screw defining a longitudinal axis;
- a drive unit engaged with a portion of the drive screw such that rotation of the drive screw results in longitudinal movement of the drive unit relative to the drive screw;
- a biasing element disposed in mechanical cooperation with the drive unit;
- and
- a drive element disposed in mechanical cooperation with the biasing element, wherein longitudinal translation of the drive element relative to the drive screw is configured to drive a function of the surgical instrument.
A drive assembly of an instrument drive unit for use with a surgical instrument, the drive assembly comprising:
- a drive screw defining a longitudinal axis;
- a drive nut threadedly engaged with a portion of the drive screw such that rotation of the drive screw results in longitudinal movement of the drive nut relative to the drive screw;
- a follower being longitudinally slidable with respect to the drive screw;
- a drive element disposed in mechanical cooperation with the follower, wherein longitudinal translation of the drive element relative to the drive screw is configured to drive a function of the surgical instrument, wherein the follower is disposed proximally of the drive nut, and wherein the drive element extends distally from the follower.
Dependencies are inferred from the claim text.