Patent ID: 6752786
Filing Date: 2004-06-22
Classification: A61F,Y02P,Y10T

Abstract:
A catheter system for controlling body temperature of a patient by modifying the temperature of blood flowing within a blood vessel of the patient, the system comprising:a catheter body having a heat exchange region, the heat exchange region having a heat exchange surface that comes in contact with the patient's blood; an apparatus for cooling the heat exchange region such that heat will be exchanged across the heat exchange surface, thereby cooling the patient's blood; a source of motion which imparts movement to the heat exchange surface while heat is being exchanged between the heat exchange surface and the patient's blood to cool the patient's blood; wherein the source of motion comprises: a wire extending longitudinally through a portion of the catheter body; and a transducer connected to the wire, the transducer adapted to move the wire in an axial direction.