Frank W. Ingle,Robert F. Bencini,Josef V. Koblish,Jonathan A. Wohlgemuth,Paul Roche
申请号：
US12432538
公开号：
US08480663B2
申请日:
2009.04.29
申请国别(地区):
US
年份:
2013
代理人:
摘要：
Apparatus and methods for performing cryogenic ablation of tissue and adjusting the size and/or location of a cryogenic cooling region. A cooling assembly may include tubes for dispensing and exhausting a coolant or refrigerant. One or both of the tubes may be moved, e.g., slidably adjusted, in order to adjust the location or size of a cryogenic ablation region. The cooling assembly may be integrated into cryogenic ablation devices including a cryogenic balloon device that includes an inner inflatable balloon and another balloon that is at least partially wrapped around the inner balloon and carries refrigerant for performing cryo-ablation. Electrodes permit electrical mapping of tissue before or after cryo-ablation to verify success of the procedure.
