Rapid exchange/perfusion angioplasty catheter
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United States of America Patent
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Dec 28, 1999
Grant Date -
N/A
app pub date -
Aug 19, 1996
filing date -
Aug 19, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A balloon dilatation catheter for the performance of percutaneous transluminal angioplasty of the coronary or other arteries is provided. The design of the catheter is such that in the deflated or collapsed configuration it defines a very low profile device allowing its delivery to a broader range of blood vessels within the body and the ability to be placed across very severe blockages in any given vascular space. The catheter in its inflated state has an outer surface that resembles standard angioplasty balloons. It has an interior channel through which a guidewire can pass to enable rapid exchange and per-fusion. Optionally, it can also have a second channel in the interior for perfusion. The channels within the balloon are asymmetrically placed (with respect to the shaft), when viewed in cross section, and are comprised, e.g., of balloon material, either of standard or increased thickness, or in addition may be reinforced by an additional supplemental cylindrical structure of a collapsible or non-collapsible nature.
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