Patent ID: 8636682

Claim:
A catheter comprising: an elongated tubular body including a first wall and second wall defining first and second lumens, respectively, each wall extending to a distal end and defining a distal opening, the first and second walls each including at least one side opening disposed proximal of the respective distal end of the first and second walls, the first and second lumens being separated by a septum, the septum including a septum extension extending distally from the septum, the septum extension being adapted to articulate relative to the septum in response to fluid flow into and out of the distal openings of the first and second lumens, wherein the septum extension is dimensioned to partially obstruct fluid flow into the catheter through one of the distal openings upon the articulation of the septum extension, and one of the first and second lumens permits fluid inflow at the distal opening of the respective one of the first and second lumens and the other of the first and second lumens permits fluid outflow at the distal opening of the respective one of the first and second lumens.