Thoracic access port

A surgical access assembly, comprising:

• an outer member defining a first opening therethrough, the first opening defining a length and a width smaller than the length, the outer member including a first frame portion defining a first end wall of the outer member and a second frame portion defining a second end wall of the outer member, the length of the first opening extending between the first and second end walls, at least one of the first frame portion or the second frame portion movable with respect to and independent of the other to vary a distance between the first and second end walls, thereby varying the length of the first opening while maintaining the width of the first opening, the second frame portion defining at least one aperture therethrough;
• an inner member defining a second opening, the second opening defining a length and a width smaller than the length, the length of the second opening oriented perpendicularly relative to the length of the first opening;
• a flexible member defining an open distal end and an open proximal end, extending between the inner member and the outer member, and defining an elongated passageway communicating with and extending between the first opening and the second opening such that dimensions of the elongated passageway increases from the open distal end to the open proximal end, the open distal end of the flexible member directly affixed to the inner member so as to surround the second opening, the open proximal end of the flexible member directly affixed to the outer member about a perimeter of the first opening such that the open proximal end of the flexible member coincides in length and width with the first opening and such that varying the length of the first opening similarly varies a length of the open proximal end of the flexible member while a width of the open proximal end of the flexible member is maintained along with the width of the first opening;
• and
• a locking button disposed between the first frame portion and the second frame portion and biased towards the second frame portion, the locking button movable between a disengaged position, wherein the locking button is misaligned with the at least one aperture and biased into contact with the second frame portion, and an engaged position, wherein the locking button is aligned with the at least one aperture and biased to extend into the at least one aperture to lock the first frame portion and the second frame portion in fixed position with respect to each other.