Methods and apparatuses for coating balloon catheters
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United States of America Patent
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Apr 30, 2013
Grant Date -
Mar 4, 2010
app pub date -
Aug 27, 2009
filing date -
Aug 29, 2008
priority date (Note) -
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Abstract
Embodiments of the invention relate to a method and apparatus for coating a medical device. In one embodiment, the method for preparing a substantially uniform coated medical device includes (1) preparing a coating solution comprising a solvent, a therapeutic agent, and an additive; (2) loading a metering dispenser with the coating solution; (3) rotating the medical device about the longitudinal axis of the device and/or moving the medical device along the longitudinal or transverse axis of the device; (4) dispensing the coating solution from the metering dispenser onto a surface of the medical device and flowing the coating solution on the surface of the medical device while the medical device is rotating and/or linearly moving; and (5) evaporating the solvent, forming a substantially uniform coating layer on the medical device.
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