Patent ID: 6592577
Filing Date: 2003-07-15
Classification: A61B

Abstract:
A cryogenic medical system comprising:a medical device, wherein the medical device includes a catheter; a system component, the system component being connectable to the medical device at a connection point, the system component controlling temperature of the medical device, and the system component including a first cooling system directing coolant to the medical device at a first temperature along a coolant supply line; and a second cooling system chilling the coolant within the coolant supply line to a temperature below the first temperature before the coolant reaches the connection point, wherein the first cooling system includes a coolant return line leading from the catheter to a coolant scavenging system, and wherein the first cooling system and the catheter comprise a substantially open-loop, and wherein the second cooling system includes an enclosure having a fluid inlet and a fluid outlet; the enclosure defining a fluid path from the inlet to the outlet, and the enclosure enveloping a portion of the coolant supply line, and wherein the inlet is provided inside the enclosure.