Cooling system

  • US 6,592,577 B2
  • Filed: 01/26/2001
  • Issued: 07/15/2003
  • Est. Priority Date: 01/25/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. 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.

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