Minimally invasive determination of collateral ventilation in lungs
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United States of America Patent
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Jun 4, 2013
Grant Date -
Apr 14, 2011
app pub date -
Dec 17, 2010
filing date -
Sep 10, 2001
priority date (Note) -
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Abstract
Minimally invasive methods, systems and devices are provided for qualitatively and quantitatively assessing collateral ventilation in the lungs. In particular, collateral ventilation of a target compartment within a lung of a patient is assessed by advancement of a catheter through the tracheobronchial tree to a feeding bronchus of the target compartment. The feeding bronchus is occluded by the catheter and a variety of measurements are taken with the use of the catheter in a manner which is of low risk to the patient. Examples of such measurements include but are not limited to flow rate, volume and pressure. These measurements are used to determine the presence of collateral ventilation and to quantify such collateral ventilation.
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