Gastric, cutaneous, or peritoneal delivery of frozen mist to induce therapeutic hyperthermia

A system for cooling a patient, said system comprising:

• a generator configured to produce a cooled, flowing gas stream having entrained frozen solid particles therein;
• an inlet conduit including at least one tubular element having a distal end configured for percutaneous self-insertion through an abdominal wall into a body cavity without damaging internal organs and for directing the cooled, flowing gas stream to a body surface which is not part of the patient's respiratory system, wherein the frozen solid particles are directly exposed to the body surface and melt to absorb body heat to cause at least one of lowering and controlling the patient's body temperature, and
• an outlet conduit including at least one tubular element having a distal end configured for percutaneous self-insertion through the abdominal wall without damaging internal organs and wherein the inlet conduit is separate from the outlet conduit and the conduits are configured to be introduced through spaced-apart opposed locations on the abdominal wall.