A device is provided for cooling intra nasally the brain of a patient in particular of a patient suffering from cardiovascular emergency. The device comprises a pressurized gas container for containing a gas or a mixture of gases and at least one cannula with a lumen a proximal opening and at least one distal opening. The cannula is for introduction into the patient s nasopharynx. Upon operation gas expands adiabatically upon exiting from the at least one cannula thereby cools and provides a coolant effect on the nasopharynx and inside the nasal cavity.
