Multi-cuffed endotracheal tube and method of its use
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United States of America Patent
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Jun 16, 1998
Grant Date -
N/A
app pub date -
Apr 25, 1996
filing date -
Apr 25, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plurality of cuff rings for an endotracheal tube for intubation of a trachea. At least one of the cuff rings is inflatable and deflatable independent of the other cuff ring so that at least one of the cuff rings may always remain inflated to maintain an airtight seal between the cannula of the endotracheal tube and a patient's trachea. Each cuff ring is successively inflated and deflated during the period the endotracheal tube is in a patient's trachea, thereby intermittently relieving the trachea of pressure on its inner wall. The intermittent relief of pressure by periodic deflation of each cuff ring reduces damage to the trachea. The cuff rings each have a surface associated therewith to lubricate the area of the trachea in contact with the cuff ring to substantially reduce the occurrence of damage to the trachea from abrasion by the cuff rings.
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