作者: R Carroll
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摘要: An elastic cuff encircles a tracheostomy or endotracheal tube near its distal end and has opposite ends fitting tightly against the tube, with proximal of sealed to tube. A tubule opening into inside extends therefrom outwardly along an outer for air under pressure inflating cuff. The forms check valve stretchable radially away from by excessive in if delivered thereto through said results drop across exceeding predetermined amount, whereupon will be reduced that amount.