Devices for creating collateral in the lungs
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United States of America Patent
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Oct 7, 2003
Grant Date -
Apr 25, 2002
app pub date -
Jul 18, 2001
filing date -
Aug 5, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
The devices and methods 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 and methods produce and to maintain collateral openings or channels through the airway wall so that expired 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. The devices and methods also disclose locating and selecting a site for creation of a collateral opening.
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