Rapid exchange emboli capture guidewire system

A catheterization system and method including a rapid exchange emboli capture guidewire system comprising a distal emboli protection device is disclosed. The protection device is delivered to an area of interest via a delivery sheath including a longitudinal exit configured to permit the sheath to be peeled away from the guidewire to speed its removal. A capture sheath having a side-port is used to capture and retrieve the filter after a catheterization treatment procedure in a time saving manner. A torque steering device is used to steer the device and is adapted to clamp onto the guidewire while leaving sheaths free to prevent inadvertent steering of the sheaths. Using the sheaths of the present invention also allows systems to use shorter guidewires than prior art systems, further speeding the catheterization procedures being performed.