Pericardial access is complicated by two difficulties: confirming when the needle tip is in the pericardial space, and avoiding complications during access, such as inadvertently puncturing other organs. Conventional imaging tools are inadequate for addressing these difficulties, as they lack soft‐tissue markers that could be used as guidance during access. A system that can both confirm access and avoid inadvertent organ injury is needed.

中文翻译：

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通过使用来自微穿刺针的阻抗测量来确认心包通路。

心包通路因两个困难而变得复杂：确认针尖何时在心包空间中，以及在通路过程中避免并发症，例如无意中刺穿其他器官。传统的成像工具不足以解决这些困难，因为它们缺乏可在访问过程中用作指导的软组织标记。需要一个既可以确认访问又可以避免意外器官损伤的系统。