Tip configurations for a multi-lumen catheter
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United States of America Patent
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Dec 4, 2012
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N/A
app pub date -
Jul 2, 2004
filing date -
Jul 2, 2004
priority date (Note) -
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Abstract
Multi-lumen catheters with improved tip configurations, including a triple-lumen catheter which may be useful for apheresis. In one variation, the catheter has three lumens with distal openings angularly spaced apart and staggered axially with respect to one another. In another variation, the catheter has two lumens exiting distally and one centrally positioned lumen exiting proximally. A third variation is a catheter with a single distal opening and two proximal openings. The staggered lumen openings along the axial length of the catheter may decrease recirculation while maximizing flow rates.
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