Surgical articulation assembly

摘要

A surgical articulation assembly is disclosed, including a control assembly and an articulable portion. The surgical articulation assembly has a passage therethrough for receiving a surgical object. The articulable portion includes at least two segments capable of independent movement. Disposed within the control assembly is an actuation assembly including a driving member, a translating member, two engagement members, a rotating member, and connecting members engaging in cooperation to effect forces through the connecting members on each of the first and second segments. More than one actuation assembly may be present, and the associated components of the actuation assembly may be configured to effect bi-directional articulation of the first and second segments in more than one plane.

主权项

1. A surgical articulation assembly, comprising:
an elongate member defining a longitudinal axis and having a passage therethrough, a portion of the elongate member having a first segment and a second segment, each segment configured and dimensioned for movement relative to the longitudinal axis, the second segment disposed distally of the first segment; a first actuation apparatus having a first plurality of connecting members and being operatively coupled to a portion of the first segment and a portion of the second segment, wherein actuation of the first actuation apparatus moves the first segment a first distance and the second segment a second distance in a first plane; and a second actuation apparatus having a second plurality of connecting members and being operatively coupled to a portion of the first segment and a portion of the second segment, wherein actuation of the second actuation apparatus moves the first segment the first distance and the second segment the second distance in a second plane, wherein at least one of the first or second pluralities of connecting members includes a length associated with a pulley.