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    • 2. 发明公开
    • PURGE PHASE FOR CRYOABLATION SYSTEMS
    • 冷冻系统的净化阶段
    • EP2948085A1
    • 2015-12-02
    • EP13872804.3
    • 2013-12-17
    • Medtronic Cryocath LP
    • HARMOUCHE, ChadiMAHROUCHE, RachidMONGER, EricSIMEON, BertinTZONEV, Vladimir
    • A61B18/02A61M25/14
    • A61B18/02A61B2018/00577A61B2018/0212A61B2018/0262A61B2018/0268
    • A method for purging a cryotreatment system, in particular, for clearing moisture and thus preventing ice blockages within a fluid flow path that may be formed when moisture pockets within the fluid flow path of the system are encountered by a first injection of refrigerant at the beginning of a cryotreatment procedure. The method may include injecting refrigerant from a refrigerant source into a fluid delivery conduit at a preselected pressure for a first period of time, the refrigerant flowing from the fluid delivery conduit through a fluid injection element and into a fluid recovery conduit, and evacuating refrigerant from the fluid recovery conduit by vacuum pressure generated by the vacuum pump for a second period of time. This method may be repeated for a plurality of cycles.
    • 一种用于净化冷冻处理系统的方法,特别是用于清除湿气并因此防止当在系统的流体流动路径内的湿气袋在开始时通过第一次注入制冷剂时可能形成的流体流动路径内的冰堵塞 的低温处理程序。 该方法可包括将制冷剂从制冷剂源以预选压力注入流体输送导管中持续第一时间段,制冷剂从流体输送导管流动通过流体注入元件并进入流体回收导管,并且从制冷剂源排出制冷剂 流体回收导管通过真空泵产生的真空压力第二段时间。 该方法可以重复多个循环。