Pigtail catheter with angled apertures
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United States of America Patent
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-
Aug 6, 1991
Grant Date -
N/A
app pub date -
Nov 8, 1989
filing date -
Nov 8, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An x-ray contrast media catheter, for example a cardiac catheter, comprises a flexible tube defining a lumen and a plurality of side apertures in the tube for fluid flow therethrough. The side apertures are each defined by a tubular surface extending through the side wall from the lumen of the exterior, in which the tubular surface defines a longitudinal axis which forms a forward angle of about 30.degree. to 60.degree. to the longitudinal axis of the catheter. Also, the distal end preferably defines an open aperture which, in turn, is defined by a bevelled tip of the catheter distal end. This provides improvements in the fluid flow dynamics when x-ray contrast media is being administered to a heart chamber.
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