A blood conditioning device having a housing with a helical blood
acceleration section which includes a helical flow path for impressing
centrifugal forces on the entrained bubbles in the blood to concentrate
them towards the center of the flow path, a bubble pick off tube aligned
with the centerline of the acceleration section which collects and
recirculates the bubbles to the cardiotomy reservoir upstream of the
device during operation, and a blood filtration section to intercept the
flow of particles in the blood.