Cerebral temperature control

A system for cerebral temperature control of a living being, comprising:

• a first double lumen balloon catheter configured to be introduced through a nostril of a living being;
• said double lumen balloon catheter comprising:
• a first lumen and a second lumen, said first and second lumens being in fluid communication by means of respective openings, said second lumen being configured as an expandable first balloon;
• a second double lumen balloon catheter configured to be introduced through another nostril of said living being;
• said second double lumen balloon catheter comprising a third lumen and a fourth lumen, said third and fourth lumens being in fluid communication by means of respective openings, said fourth lumen being configured as an expandable second balloon;
• a temperature regulator connected to a reservoir comprising a fluid, said temperature regulator being configured to regulate the temperature of said fluid;
• a circulation mechanism operative to pass said temperature regulated fluid to each of said first and second catheters from said reservoir into said first lumen, from said first lumen into said second lumen, and out from said second lumen, and from said reservoir into said third lumen, from said third lumen into said fourth lumen, and out from said fourth lumen,
• whereby said first and second balloons, when in use, are expandable to cover the inner surfaces of the nose.