Double lumen tubing design for catheter
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United States of America Patent
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-
Aug 18, 1998
Grant Date -
N/A
app pub date -
Jan 29, 1997
filing date -
Jan 29, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A double lumen tubing which is adapted for use as a catheter. Both lumens of the double lumen tubing have equal cross-sectional areas to provide equivalent flow volumes through each lumen. The lumen wall which divides the outer tubular wall into the two lumens has a central arcuate portion which is shaped to allow insertion of relatively large guidewires through the lumen while at the same time maintaining equivalent cross-sectional areas for each lumen. Resistance to kinking is increased by varying external diameters of each lumen to increase the wall thickness of the tubing in selected areas and by varying the thickness of the wall that divides both lumens at the two joints where the wall meets the tubular wall.
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Family
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Cited Art Landscape
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