Perfusion type dilatation catheter having perfusion ports with depressed proximal edges
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United States of America Patent
Stats
-
Aug 2, 1994
Grant Date -
N/A
app pub date -
Aug 4, 1992
filing date -
Aug 4, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A perfusion-type dilatation catheter with perfusion ports in the wall of the catheter shaft wherein the proximal edges of the perfusion ports have depressions extending into a guidewire receiving inner lumen which passes through the catheter shaft. The depressed proximal edges prevent excursions of guidewires through the perfusion ports as the guidewire is passed through the guidewire receiving inner lumen. The perfusion ports may be conveniently made by forming holes into the wall of the catheter shaft, inserting shaping pins into the holes, heating the wall of the catheter shaft to make it readily deformable and then rotating the shaping pins proximally along the longitudinal axis of the catheter shaft so that the rotated shaping pins form depressions along the proximal edges of the perfusion ports which extend into the guidewire receiving inner lumen within the catheter shaft.
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