Catheter with expandable body and method of dilating a blood vessel with such catheter
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United States of America Patent
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N/A
Issued Date -
Sep 29, 2005
app pub date -
Mar 24, 2005
filing date -
Mar 26, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A catheter includes an elastically radially expandable body encompassed by an elastically radially expandable slitted sleeve. Before the body is expanded, the slit is closed but is opened when the body and the sleeve are expanded. When the catheter is used to dilate a constricted portion of a blood vessel, the opened slit defines a recess into which the constricted portion projects, in order to resist slippage of the body off the constricted portion. When the body and the sleeve are allowed to contract, the sleeve forces the body into a generally cylindrical shape to facilitate subsequent re-dilation of the constricted portion.
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