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Apparatus and methods for cryogenically ablating tissue and adjusting cryogenic ablation regions
Apparatus and methods for cryogenically ablating tissue and adjusting cryogenic ablation regions
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机译:用于低温消融组织并调节低温消融区域的设备和方法
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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.
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