Patent ID: 8109910

Claim:
A flip-top cannula comprising: a cannula having a cannula body defining an inner chamber, an elongate tubular member extending distally from the cannula body and a cannula seal positioned on a proximal end of the cannula body, the cannula seal having an opening of a first predetermined diameter for receipt of a first surgical instrument, the proximal end of the cannula body including a recess; and a reducer cap including a reducer seal defining a bore having a second predetermined diameter for receipt of a second surgical instrument, the second predetermined diameter being less than the first predetermined diameter, the reducer cap including a first portion circumferentially surrounding the proximal end of the cannula body, a second portion movably mounted relative to the first portion and a flexible hinge connecting the first and second portions, the second portion including a top surface and a circumferential side surface, the circumferential side surface including an inner lip, wherein the second portion is movable from a closed position wherein the inner lip engages the recess in the proximal end of the cannula body such that the reducer seal overlies the cannula seal to an open position wherein the inner lip disengages the recess in the proximal end of the cannula body such that the reducer seal is spaced from the cannula seal.