Patent ID: 9561045
Date: 2017-02-07
CPC Classifications: A61B

Claim:
1. A device comprising: a proximal portion and a distal portion; a shaft interposed between the proximal portion and the distal portion; a handle at the proximal portion; an articulation mechanism for manipulating angular orientation of the distal portion, the articulation mechanism comprising proximal links on the proximal portion and distal links on the distal portion, each proximal link corresponding to one of the distal links to form pairs of links, wherein a bushing separates the first link of the proximal links from a second link of the proximal links and wherein movement of the proximal link of each pair causes corresponding relative movement of the distal link of the pair; and a shaft rotation lock defining a central axis extending therethrough in which a spindle is disposed, the spindle being fixed along the axis with respect to the handle and terminating in a first link of the proximal links, the spindle having an engaging slot configured to receive a proximal portion of the bushing therein, and wherein the shaft rotation lock is movable between a first state in which the articulation mechanism and distal portion are not rotatable with respect to the handle about the central axis and a second state in which the articulation mechanism and the distal portion are rotatable with respect to the handle about the central axis, the shaft rotation lock comprising a rotation member that is engaged with the articulation mechanism in the first and second states.