Autoperfusion dilatation catheter having a bonded channel
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United States of America Patent
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Mar 22, 1994
Grant Date -
N/A
app pub date -
Mar 13, 1992
filing date -
Mar 13, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An autoperfusion dilatation catheter useful in angioplasty comprises a conventional catheter shaft and an inflatable balloon. The catheter is designed such that the balloon, when inflated, has an outer surface relief-structure whereby when this outer surface is fully inflated and exerts pressure on the inner surface of a blood vessel, blood continues to flow between the outer surface of the balloon and the blood vessel surface. Preferably, the relief structure is a channel formed in the outer surface of the balloon by the pressure of a band attached to the catheter and which presses against the outer surface of the balloon.
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