Patent ID: 8308786

Claim:
A method for cerebral cooling, comprising the steps of: introducing a catheter through a first nostril of a patient, the catheter having a proximal end, a distal end, a single lumen therebetween, the lumen having openings at the proximal and distal ends of the catheter, the catheter having an expandable region intermediate between the proximal and distal ends; advancing the distal end of the catheter through the nasal cavity, around the nasal septum and out a second nostril of the patient so that the expandable region lies within at least a portion of the patient's first and second nasal cavities; and circulating a cold fluid into the proximal opening of the lumen, through the lumen at the proximal end of the catheter, through the expandable region, through the lumen at the distal end of the catheter, and out of the distal opening of the lumen to cool the nasal cavities.