Low maintenance endotracheal tube device and method for preventing ventilator associated pneumonia and tracheal ischemia
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United States of America Patent
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Aug 6, 2019
Grant Date -
Aug 11, 2016
app pub date -
Feb 9, 2016
filing date -
Feb 10, 2015
priority date (Note) -
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Abstract
A method of sealing a trachea is provided that includes inserting a tracheal tube having an inflatable cuff made of a compliant material into a trachea. The method includes inflating the inflatable cuff with a fluid to a first pressure that exceeds a second pressure necessary to create a seal between the inflatable cuff and the tracheal wall. The method includes deflating the inflatable cuff by releasing a first pressure to allow the fluid to flow out of the inflatable cuff without applying vacuum pressure to the fluid while evaluating a rate of change of pressure of the fluid in the inflatable cuff. The method includes identifying a variance in the rate of change of pressure corresponding to a third pressure at which the inflatable cuff separates from the tracheal wall, determining the second pressure by analyzing the third pressure, and reinflating the inflatable cuff to the second pressure.
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