| 摘要 |
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. |
| 主权项 |
1. A device for providing cooling intracorporally comprising:
a pressurized gas container for containing a gas or a mixture of gases, and at least one cannula with a lumen and a proximal opening and at least one distal opening for application to an application site, wherein the pressurized gas container and the at least one cannula are: (i) first connected by connection means, and said connection means being adapted to substantially prevent adiabatic expansion of the gas, or mixture of gases, upon passage of the gas, or the mixture of gases, from the container to the at least one distal opening of the at least one cannula, and (ii) second facilitate adiabatic expansion of the gas, or the mixture of gases, upon exiting of the gas, or mixture of gases, from the at least one cannula, and the at least one opening has a width of from about 50 to 300 μm so as to minimize adiabatic expansion of the gas, or the mixture of gases, prior to exiting from the at least one cannula and ensure that the adiabatic expansion of the gas, or the mixture of gases, substantially occurs upon exiting of the gas, or the mixture of gases, from said at least one distal opening of the at least one cannula. |
