Angioplasty apparatus
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United States of America Patent
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-
Oct 5, 1993
Grant Date -
N/A
app pub date -
Jun 26, 1992
filing date -
Jun 26, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An angioplasty apparatus for removing abnormal deposits such as atheromatic plaque from the internal arterial walls is provided. The apparatus includes an elongated, flexible mechanism for insertion in an artery to the location of plaque deposit. Two inflatable occluder balloons are provided to be positioned at either ends of the plaque section and inflated to seal off the section. A milling balloon is adapted to be positioned in the plaque section to be rotated and bear against an expandable milling surface which is gradually expanded as the plaque deposit is milled away. Because of the sealing balloons, the plaque particles are prevented from passing into the arterial stream and may be taken away through a tubular channel.
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