Bronchial stenter having expandable electrodes
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United States of America Patent
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-
Sep 4, 2001
Issued Date -
N/A
app pub date -
Mar 1, 1999
filing date -
Apr 7, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus and method are provided for treating collapsed bronchial tubes found in patients with chronic obstructive pulmonary diseases, such as asthma. The apparatus delivers energy to inductively heat the tissue of the bronchial tube by directing electromagnetic energy into the tissue. The apparatus includes expandable electrodes that come into contact with the walls of the bronchial tubes. The expandable electrodes may be conical-shaped electrodes, loop-shaped electrodes, plate-shaped electrodes, or other shapes. The method includes heating the bronchial tube to cause tissue in the wall of the bronchial tube to undergo a structural transformation effective to render the wall capable of supporting a non-collapsed lumen. The procedure effectively reinforces the structural integrity of the bronchial tube wall and thereby prevents the lumen from collapsing.
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