Patent ID: 8529495
Filing Date: 2013-09-10
Classification: A61B,A61F

Abstract:
1. A middle ear ventilation tube, comprising: a hollow, substantially cylindrical tube having axially opposed first and second open ends; a first annular flange formed about the first end of the tube, the first annular flange defining first and second portions, the first portion defining an annular rim extending radially outward from the open first end of the tube, and the second portion defining a tapered angle edge; and a second annular flange formed about the second end of the tube, the second annular flange having a tongue portion extending outwardly therefrom and being diametrically opposed to the tapered angle edge, the tongue having an outer edge and a rounded, substantially C-shaped notch formed in the outer edge, wherein the second annular flange has a pair of recesses defined therein for fine adjustment of the position of the tube within the ear, wherein the pair of recesses are disposed solely on the second annular flange and are radially spaced apart from the second open end of the tube, the pair of recesses being diametrically opposed to one another with respect to the second open end of the tube.