Patent ID: 8142395

Claim:
A catheter comprising an elongated tube having proximal and distal ends and a plurality of lumens therethrough; a multi-chamber balloon assembly mounted at the distal end of the elongated tube comprising at least two tandem chambers, each chamber communicating with a separate lumen and each separate lumen terminating at the proximal end at a single lumen valve; each chamber having an inflated configuration with a diameter that progressively tapers in a direction from proximal to distal, said taper extending substantially continuously from the proximal end of the balloon assembly to the distal end thereof; and a single lumen valve control for the single lumen valve having at least two modes of operation, wherein in a first mode of operation, the chambers are sequentially inflated from the chamber located most distally on the catheter to the chamber located most proximally on the catheter and in a second mode of operation the chambers are all inflated simultaneously.