Method and apparatus for ultrafiltration utilizing a long peripheral access venous cannula for blood withdrawal
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United States of America Patent
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Feb 3, 2004
Grant Date -
Dec 12, 2002
app pub date -
Jun 8, 2001
filing date -
Jun 8, 2001
priority date (Note) -
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Abstract
Method and apparatus for the extracorporeal treatment of blood by utilizing a peripherally inserted catheter assembly for the continuous removal of blood for renal replacement treatment, in particularly, treatment of congestive heart failure and fluid overload by ultrafiltration. A catheter is inserted in a peripheral vein and maneuvered upward through the vascular system to access the reservoir of blood in the large or great veins for continuous blood withdrawal and treatment. Air-tight connectors are incorporated in the catheter assembly to overcome the untoward effects of negative pressure in blood withdrawal.
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