Catheter systems having multilumen guide catheter and retractable working catheter positioned in at least one lumen thereof
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United States of America Patent
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Apr 20, 2004
Grant Date -
N/A
app pub date -
Nov 20, 2000
filing date -
Jan 15, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of performing dialysis with a, catheter system which includes (i) a working catheter having a distal working orifice, and (ii) a guide catheter having a guide lumen and a distal guide orifice is disclosed. The method includes the step of locking the working catheter in an operative position in which (i) the working catheter extends through the guide lumen of the guide catheter and out of the distal guide orifice of the guide catheter, and (ii) the distal working orifice of the working catheter is positioned outside of the guide catheter. The method further includes the step of performing a dialysis procedure including advancing and withdrawing blood through the working catheter while the working catheter is locked in the operative position. Moreover, the method includes the step of, after the dialysis procedure performing step, locking the working catheter in a stowed position in which (i) the working catheter extends into the guide lumen of the guide catheter, and (ii) the distal working orifice of the working catheter is positioned within the guide lumen of the guide catheter.
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