Method for minimizing restenosis
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United States of America Patent
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May 23, 1995
Grant Date -
N/A
app pub date -
Jan 21, 1993
filing date -
Jan 21, 1993
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed is a light angioplasty catheter and method for exposing the interior of a body lumen to a source of light. Light exposure may be accomplished prior to, during, or following conventional balloon dilatation. Also disclosed is a method and apparatus for exposing a preselected portion of vessel wall to a source of light. Relatively low energy light exposure has been found by the inventors herein to both inhibit restenosis following dilatation of a stenotic region, and to inhibit vascular spasms whether or not associated with a stenotic region. It may also arrest progress of a stenosis. Methods are also disclosed for cooling the vascular wall to treat a stenosis. Cooling may be accomplished prior to, during, or following dilatation.
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