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US08700121B2 Devices for determining the relative spatial change in subsurface resistivities across frequencies in tissue 失效
用于确定跨组织中频率的次表面电阻率的相对空间变化的装置

Devices for determining the relative spatial change in subsurface resistivities across frequencies in tissue
Abstract:
Sensors for non-invasively determining tissue wetness/hydration based on relative changes in subsurface resistivities in tissue below the sensor when applied to a human body across different frequencies. A sensor including arrays of current-injecting and voltage-sensing electrodes may be placed on a subject's back to determine lung wetness. Sensors may be used as part of a systems and method for determining tissue water content, systems and methods for determining lung wetness, or the like. Sensors for determining relative changes in subsurface resistivities across frequencies and systems include arrays of electrodes used to determine relative changes in subsurface resistivities across frequencies may include pairs of current-injecting and voltage sensing electrodes.
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