Patent ID: 8439041
Filing Date: 2013-05-14
Classification: A61M

Abstract:
1. A medical device tube, comprising: a ventilation lumen having an open distal end for ventilating a patient and extending from the open distal end to a proximal end; a continuous and generally circular inner wall encircling the ventilation lumen; a continuous and generally circular outer wall; and support structures extending continuously along the length of the medical device tube generally from the proximal end to the distal end and between the inner wall and the outer wall, wherein the support structures, the inner wall, and the outer wall form a plurality of radially equally spaced lumens extending axially through the medical device tube, all of the lumens being of substantially the same size and shape, and the support structures having a volume less than the collective volume of the lumens, and wherein the walls and support structures are made of a flexible synthetic plastic material suitable for use as a tracheal tube, and wherein the support structures define a plurality of outer lumens and a plurality of inner lumens, the outer lumens having a majority of their volume disposed outside of a midline extending circumferentially midway between an outer surface of the outer wall and an inner surface of the inner wall, and the inner lumens having a majority of their volume disposed inside of the midline.