Variable diameter balloon dilatation catheter
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United States of America Patent
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Nov 28, 1995
Grant Date -
N/A
app pub date -
Feb 24, 1994
filing date -
Feb 24, 1994
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A dilatation catheter includes an inflation balloon having a variable diameter inflation profile. The balloon has a first inflation profile, in which it exhibits a substantially cylindrical central working profile. The first inflation profile of the balloon is achieved by inflating the balloon to a first inflation pressure. The balloon has a second inflation profile which is achieved by increasing the inflation pressure to a second, higher pressure. In the second inflation profile, a proximal segment and a distal segment of the balloon have a first inflated diameter and a central focal segment, separating the proximal and distal segments, has a second inflated diameter, such that the second inflated diameter is greater than the first inflated diameter.
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