Non-inflatable sealing cuff for tracheal tube and other cannula

摘要: The present invention discloses a sealing cuff for an elongated tubular cannula, forming adequate fluid seal between the cannula and body passageway when is inserted into passageway. comprises plurality of thin flexible resilient annular slit discs extending generally perpendicularly from with rim having diameter larger than opening haves series slits radially outwardly to rim, dividing disc sectors, so that passageway, each sector can independently bend, overlap readily conform wall further solid smaller arranged alternately said discs. use on tracheal tube be "D-shaped" facilitate conforming shape trachea.