会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • DETECTING WORSENING HEART FAILURE BASED ON IMPEDANCE MEASUREMENTS
    • 基于阻抗测量检测心脏衰竭的心脏衰竭
    • WO2010014070A1
    • 2010-02-04
    • PCT/US2008/009336
    • 2008-07-31
    • MEDTRONIC, INC.HETTRICK, Douglas, A.STADLER, Robert, W.SARKAR, Shantanu
    • HETTRICK, Douglas, A.STADLER, Robert, W.SARKAR, Shantanu
    • A61B5/053
    • A61B5/053A61B5/746
    • Techniques for processing impedance data to provide an early warning for heart failure decompensation are described. An example device may be configured to measure intrathoracic impedance values, and increment an index when a determined impedance is less than a reference impedance. The incrementing may be based on the difference between the reference impedances and the determined impedance. In some examples, the amount of incrementing is reduced based on a variability of the impedances, or increased over time so long as the index remains above a threshold, e.g., zero. In some examples, the manner is which the reference impedances are determined changes over time to, for example, address rapid changes in impedance after device or system implantation. In some examples, the index is compared to a threshold to determine whether to provide an alert. In some examples, two thresholds are used to provide hysteresis.
    • 描述了用于处理阻抗数据以提供心力衰竭失代偿的早期警告的技术。 示例性装置可以被配置为测量胸内阻抗值,并且当确定的阻抗小于参考阻抗时增加指数。 增量可以基于参考阻抗和确定的阻抗之间的差异。 在一些示例中,只要索引保持高于阈值(例如零),基于阻抗的可变性减小增量的量,或随时间增加。 在一些示例中,确定参考阻抗的方式随时间而变化,例如,在器件或系统植入之后,阻抗的快速变化。 在一些示例中,将索引与阈值进行比较,以确定是否提供警报。 在一些示例中,使用两个阈值来提供滞后。