A selective organ heat transfer device with deep irregularities in a turbulence-inducing
exterior surface. The device can have a plurality of elongated, articulated segments,
each having a turbulence-inducing exterior surface. A flexible joint connects adjacent
elongated, articulated segments. An inner lumen is disposed within the heat transfer
segments. The inner lumen is capable of transporting a pressurized working fluid
to a distal end of the heat transfer element.