Catheter balloon having a controlled failure mechanism
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United States of America Patent
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Apr 23, 2002
Grant Date -
N/A
app pub date -
Aug 27, 1999
filing date -
Aug 27, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A catheter balloon having a controlled failure mechanism such that release of pressure contained within the balloon occurs in a controlled fashion when a predetermined inflation pressure in excess of normal operating pressure is reached within the balloon. The failure mechanism is the result of incorporating a failure mechanism into at least one end of the balloon, for example, with a controlled amount of attachment of the at least one end to the catheter shaft. This end of the balloon therefore fails at a predetermined pressure with the failure occurring before catastrophic failure of the balloon by rupture between the balloon ends. The controlled failure mechanism allows for non-catastrophic failure such that the balloon remains intact following failure and remains easily withdrawable from the body conduit into which it has been inserted.
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