| 摘要 |
<p>A tracheal tube for use in intubation of a trachea, and embodying a resilient yieldable cuff for effecting a seal between the tube and the trachea. The cuff contains a resilient member, which normally resiliently maintains the cuff in an expanded position away from the tube. The tube also embodies a secondary tube mounted on the tracheal tube in communiction with the interior of the cuff for applying a vacuum to the cuff for contracting the latter. The tracheal tube also embodies a connector in communication with the interior thereof for connecting the secondary tube to the interior of the tracheal tube during mechanical ventilation and thereby increasing and decreasing the pressure within the cuff in accordance with the pressure variation in the tracheal tube during such an operation,</p> |
