Patent ID: 8807136

Claim:
A tracheal tube comprising: a tube defining a passageway for transferring respiratory gas to a patient's lungs, the tube comprising: a distal end portion; a proximal end portion; and an intermediate portion co-axially coupled to the distal end portion and to the proximal end portion to form a conduit for transfer of the respiratory gas into a patient's trachea, wherein the intermediate portion comprises thin wall sections between longitudinal ribs coupling the proximal end portion to the distal end portion, wherein the thin wall sections are capable of folding in on themselves, and wherein the longitudinal ribs are more rigid than the thin wall sections, and wherein the thin wall sections and the longitudinal ribs form a portion of the conduit for transfer of the respiratory gas and are configured to directly contact the respiratory gas, wherein there is no structure on an interior side of the thin wall sections and longitudinal ribs.