Devices and methods for maintaining collateral channels in tissue
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United States of America Patent
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-
Feb 13, 2007
Grant Date -
Aug 15, 2002
app pub date -
Sep 4, 2001
filing date -
Feb 14, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The devices and methods of placement of such 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 and maintain 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. The medical kits disclosed herein are also directed to produce and maintain collateral openings through airway walls.
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