Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2005-02-01
2005-02-01
Lucchesi, Nicholas D. (Department: 3763)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S528000
Reexamination Certificate
active
06849062
ABSTRACT:
A catheter shaft for a balloon catheter includes a centrally-located guidewire lumen. A body portion of the catheter shaft includes arc-shaped nodes that define a guidewire track within the guidewire lumen. Each node provides a single contact point for a guidewire within the guidewire lumen, thereby limiting frictional contact due to “rolling” friction, rather than “sliding” friction, between the catheter shaft and an inserted guidewire. The nodes include a crown region that includes the contact point. The crown region may be formed of a material having a lower coefficient of friction than the remaining portion of the catheter shaft. At least one node has an inflation lumen extending therethrough. The inflation lumen is in fluid communication with an interior of an inflatable balloon.
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Lucchesi Nicholas D.
Medtronic Vascular Inc.
Williams Catherine S.
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