METHODS AND DEVICES FOR NON-INVASIVE CEREBRAL AND SYSTEMIC COOLING
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United States of America Patent
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Issued Date -
Sep 17, 2009
app pub date -
Mar 17, 2008
filing date -
Mar 17, 2008
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Abstract
Methods for pharyngeal and cerebral cooling by delivering an ice slurry, slush or super-cooled gel to a patient's nasal cavity, oral cavity and/or throat are described. In one method, a cooling assembly is inserted into a nasal cavity through a patient's nostril. The cooling assembly includes a flexible balloon defining a chamber and a first elongate tubular member having a lumen in fluid communication with the chamber. A ice slurry having a temperature between about −5° C. and about 5° C. is delivered through the lumen of the first elongate tubular member into the chamber, wherein the flexible balloon expands to place it in contact with the nasal cavity. In another method, an expandable member is inserted through the patient's oral cavity and positioned such that when expanded it forms a low pressure seal substantially isolating the nasal and oral cavities from the patient's trachea. An ice slurry is delivered directly to the patient's nasal cavity.
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