Patent ID: 9039610
Filing Date: 2015-05-26
Classification: A61B

Abstract:
1. A surgical access assembly for positioning within an opening in tissue, the surgical access assembly comprising: an outer frame positionable outside a patient and defining an opening therein, the opening dimensioned to receive a surgical instrument therethrough, the outer frame including first and second portions, the first portion having a first engagement structure and the second portion having a second engagement structure; an inner member positionable within a patient; a flexible member extending between the inner member and the outer frame and operatively associated with the outer frame; a retaining frame having at least one spring to bias the first portion into locking engagement with the second portion such that the first engagement structure is in locking engagement with the second engagement structure, the first portion being biased in a first axial direction along a longitudinal axis of the outer frame; and first and second links, each of the first and second links attached to the retaining frame and the first portion, wherein movement of the first portion with respect to the retaining frame in a second, opposite axial direction along the longitudinal axis overcomes the bias and pivots the first and second links to move the first and second engagement structures to a disengaged position, and wherein, in the disengaged position, at least one of the first and second portions is movable with respect to the other portion to adjust the tension on the flexible member to retract tissue.