Myringotomy ventilation tube and associated method

摘要

A tympanic ventilation tube or pressure equalization device includes a tapered tubular member and a distal flange in the form of two opposite projecting flexible tabs connected to one end of the tubular member. A proximal flange is connected to an opposite end of the tubular member, while a blade member is removably inserted in a groove in the proximal flange. The blade member facilitates the incising of the tympanic membrane during the insertion of the tubular member, wherein the first flange and the second flange seat against opposite sides of the membrane following the insertion. The blade member is provided with a cutting edge on one side and a tongue extension on an opposite side, the tongue extension facilitating a grasping of the blade member and concomitantly the entire device by a grasper instrument during an insertion procedure.