Method of molding balloon catheters employing microwave energy
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United States of America Patent
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-
Dec 27, 2005
Grant Date -
Oct 2, 2003
app pub date -
Mar 28, 2002
filing date -
Mar 28, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for molding balloon catheters is disclosed. The balloon may be molded by providing a polymeric tube within a mold having an interior cavity in the shape of the desired balloon. Microwave energy, which may be generated by a gyrotron, may then be directed toward the mold, to heat the polymeric material without heating the mold. Once heated, pressurized fluid may be injected into the tube to blow the polymeric material against the interior cavity whereupon the material can cool to form the balloon or can be further heatset by additional microwave energy and be cooled to form the balloon.
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