Daul-lumen catheter
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United States of America Patent
Stats
-
Dec 30, 1997
Issued Date -
N/A
app pub date -
Jul 3, 1996
filing date -
Sep 8, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dual-lumen blood-treatment catheter has inner and outer lumina open towards the patient end. The catheter has expandable portions in the outer lumen located near the patient end for atraumatically preventing collapse of the blood vessel to ensure free flow of blood into and out of the catheter, In one embodiment, the outer lumen has a plurality of slits around its circumference which form slats therebetween. Withdrawal of the inner lumen relative to the outer lumen causes the slits to open, thereby bowing the slats to expand the outer lumen.
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Family
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Cited Art Landscape
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