LANE, MIRIAM,CAPUANO, LEONILDA,HOLTAN, DAVID,LALONDE, JEAN-PIERRE,LUECKGE, CLAUDIA,PAGEARD, JEAN-LUC,ABBOUD, MARWAN,ASMAR, JOHNNY AL,BENRABAH, ABDERRAHIM,CHEN, KEN,LEHMANN, JOHN W.,MARCHAND, PHILIPPE
申请号：
CA2666334
公开号：
CA2666334C
申请日:
2002.08.29
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
An elongated catheter device with a distal balloon assembly is adapted for endovascular insertion. Coolant injected through the device may directly cool tissue contacting the balloon (212), or may cool a separate internal chamber. In the first case, the coolant also inflates the balloon, and spent coolant is returned to the handle via a return passage extending through the body of the catheter. Plural balloons may be provided, wherein a secondary outer balloon (212) surrounds a primary inner balloon (203), the primary balloon being filled with coolant and acting as the cooling chamber. The secondary balloon is coupled to a vacuum return lumen (205) to serve as a robust leak containment device and thermal insulator around the cooling chamber.
