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    • 5. 发明申请
    • VOLUME SENSING
    • 体积感知
    • WO2010105250A3
    • 2011-01-13
    • PCT/US2010027261
    • 2010-03-13
    • PROTEUS BIOMEDICAL INCZDEBLICK MARK
    • ZDEBLICK MARK
    • A61B5/0295
    • A61B5/029A61B5/0535A61B5/0538A61B5/6846
    • Each sensor in one or more pairs of sensors is associated with a particular tissue, for example a first tissue location and a second tissue location respectively. Tissue at a particular tissue location may be solid, for example, muscle tissue, fat tissue, etc., or fluid, for example, blood, fluids associated with edema, etc. The area between the two tissue locations associated with a pair of sensors may comprise solid tissue, fluid tissue, an empty chamber, or combinations thereof. For each pair of sensors in the at least one pair of sensors, a first impedance measurement between the pair of sensors and associated with a first frequency is determined. For each pair of sensors in the at least one pair of sensors, a second impedance measurement between the pair of sensors and associated with a second frequency is determined. A comparison of a ratio of the first impedance measurement at a point in time to the second impedance measurement at a corresponding point in time may be made to determine a volume- related value associated with an area located between the first tissue location and the second tissue location.
    • 一对或多对传感器中的每个传感器分别与特定组织,例如第一组织位置和第二组织位置相关联。 在特定组织位置处的组织可以是实心的,例如肌肉组织,脂肪组织等,或流体,例如血液,与水肿相关的流体等。与一对传感器相关联的两个组织位置之间的区域 可以包括固体组织,流体组织,空腔或其组合。 对于至少一对传感器中的每对传感器,确定该对传感器之间并与第一频率相关联的第一阻抗测量。 对于至少一对传感器中的每对传感器,确定一对传感器之间并与第二频率相关联的第二阻抗测量。 可以对在相应时间点的时间点上的第一阻抗测量值与第二阻抗测量值的比率进行比较,以确定与位于第一组织位置和第二组织之间的区域相关联的体积相关值 位置。