ACTIVE DRIVE MECHANISM FOR SIMULTANEOUS ROTATION AND TRANSLATION

摘要

An exemplary drive apparatus may include a roller assembly and a roller support. The roller assembly may have a first continuous surface, a second continuous surface, an open configuration for receiving an elongate member, and a closed configuration for securing the elongate member in the roller assembly. The roller assembly imparts axial motion to the elongate member along the first continuous surface, which maintains contact with the elongate member during the axial motion. The roller support rotates the roller assembly about the second continuous surface, which maintains contact with the roller support during rotational motion. The roller assembly and roller support to impart axial and rotational motion, respectively, independently of one another.

主权项

1. A drive apparatus for translating and rotating an elongate member, the drive apparatus comprising:
a sterile cover defining a sterile space; a disposable barrel positioned outside the sterile space; a roller assembly disposed within the disposable barrel, the roller assembly comprising a pair of rollers rotatable in opposing directions, wherein the roller assembly is configured to receive an elongate member between the pair of rollers; a driving member traversing the sterile cover, the driving member having a first portion disposed within the sterile space and a second portion extending outside the sterile space, wherein the second portion of the driving member is in contact with the disposable barrel; a first driving shaft positioned within the sterile space, operatively coupled to the roller assembly, and configured to rotate the pair of rollers, wherein rotation of the pair of rollers imparts axial motion to the elongate member along an elongate axis of the elongate member; and a second driving shaft positioned within the sterile space, operatively coupled to the driving member, and configured to rotate the driving member, wherein rotation of the driving member imparts rotation on the disposable barrel and the elongate member about the elongate axis of the elongate member.