Patent ID: 8961408
Filing Date: 2015-02-24
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 dimensioned to receive a surgical instrument therethrough, the outer frame including a first portion, a second portion, and a locking portion, wherein the second portion includes a first engagement structure and a second engagement structure spaced from the first engagement structure, and the first portion includes a third engagement structure and a forth engagement structure, the first engagement structure engageable with the third engagement structure and the second engagement structure engageable with the fourth engagement structure, a region of the second portion overlying a region of the first portion and underlying a region of the locking portion, the locking portion being movable relative to the first and second portions to lock the first and second portions in relation to each other in a plurality of select spread positions, the locking portion being relatively movable with respect to the second portion from a first position wherein the first and second engagement structures are out of engagement with the third and fourth engagement structures to a second position wherein the first and second engagement structures are in engagement with the third and fourth engagement structures, the locking portion having a camming surface to cam the first and second engagement structures into the second position; an inner member positionable within the patient; and a flexible member extending between the inner member and the outer frame, and being spreadable by actuation of the outer frame, the flexible member being maintained in a select spread position when the first and second portions of the outer frame are locked in relation to each other by the locking portion.