Devices for creating collateral channels
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United States of America Patent
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Jun 15, 2004
Grant Date -
Aug 15, 2002
app pub date -
Sep 4, 2001
filing date -
Aug 5, 1999
priority date (Note) -
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Abstract
The devices disclosed herein are directed to altering gaseous flow within a lung to improve the expiration cycle of, for instance, an individual having Chronic Obstructive Pulmonary Disease. More particularly, these devices produce collateral openings or channels through the airway wall so that oxygen depleted/carbon dioxide rich air is able to pass directly out of the lung tissue to facilitate both the exchange of oxygen ultimately into the blood and/or to decompress hyper-inflated lungs.
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