Methods and devices to induce controlled atelectasis and hypoxic pulmonary vasoconstriction
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United States of America Patent
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Mar 20, 2012
Grant Date -
Sep 27, 2007
app pub date -
Mar 7, 2007
filing date -
Mar 8, 2006
priority date (Note) -
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Abstract
Lung conditions are treated by implanting a flow restrictor in a passageway upstream from a diseased lung segment. The restrictor will create an orifice at the implantation site which inhibits air exchange with the segment to induce controlled atelectasis and/or hypoxia. Controlled atelectasis can induce collapse of the diseased segment with a reduced risk of pneumothorax. Hypoxia can promote gas exchange with non-isolated, healthy regions of the lung even in the absence of lung collapse.
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