Method and system for monitoring thoracic tissue fluid
Inventors
Rappaport, Dan • MIZRAHI, Nadav • BERGIDA, Shlomi • SAROKA, Amir • Ronen, Amir • KOCHBA, Ilan
Assignees
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Publication Number
US-12303245-B2
Publication Date
2025-05-20
Expiration Date
Abstract
A method for monitoring thoracic tissue. The method comprises intercepting reflections of electromagnetic (EM) radiation reflected from thoracic tissue of a patient in radiation sessions during a period of at least 24 hours, detecting a change of a dielectric coefficient of the thoracic tissue by analyzing respective the reflections, and outputting a notification indicating the change. The reflections are changed as an outcome of thoracic movements which occur during the period.
Core Innovation
The invention relates to monitoring tissues with respect to a posture of a patient using at least one antenna element and at least one hardware processor. The method intercepts radio frequency (RF) signals at a range of 0.3 gigahertz (GHZ) to 20 GHZ from at least one thoracic tissue of the patient and extracts features from the RF signals, where the features are selected from a group including a phase and an amplitude of the RF signals.
The method computes a current posture of the patient and computes a dielectric related property of the at least one thoracic tissue from an analysis of the extracted features, with respect to an effect of the current posture on the dielectric property. The computed dielectric related property is output as a notification indicative of the dielectric related property.
The analysis can produce time-stamped measurements and notifications or alarms, and can be integrated with other sensors. The monitoring can address pathological patterns including CHF and ARDS and related conditions, including pulmonary edema and related etiologies, and can support a wearable monitoring apparatus for ambulatory operation.
Claims Coverage
Two independent claims are identified. The claims center on intercepting thoracic RF signals in the 0.3 GHz to 20 GHz range, extracting RF features selected from phase and amplitude, computing a current posture, computing a dielectric related property that accounts for the effect of the current posture, and outputting a notification indicative of the dielectric related property; one claim is a method and one is a wearable monitoring apparatus.
Thoracic RF interception for dielectric-related property monitoring
Intercepting, using at least one antenna element, radio frequency (RF) signals at a range of 0.3 gigahertz (GHZ) to 20 GHZ from at least one thoracic tissue of the patient.
RF feature extraction from phase and amplitude
Extracting at least one feature from the radio frequency (RF) signals, the at least one feature being selected from a group including a phase and an amplitude of the radio frequency (RF) signals.
Posture and posture-dependent dielectric property computation
Computing a current posture of the patient and computing a dielectric related property of the at least one thoracic tissue from an analysis of the at least one feature with respect to an effect of the current posture on the dielectric property.
Notification indicative of dielectric related property
Outputting a notification indicative of the dielectric related property.
Wearable monitoring apparatus with posture-dependent dielectric output
A wearable monitoring apparatus configured for monitoring tissues with respect to a posture of a patient, comprising at least one antenna element and at least one processor executing code for extracting the feature, computing the current posture, computing the dielectric related property, and outputting the notification.
Across both independent claims, the inventive coverage is directed to monitoring thoracic tissues by intercepting RF signals, extracting phase and amplitude features, computing current posture, computing a posture-dependent dielectric related property, and outputting a notification indicative of that dielectric related property.
Stated Advantages
The analysis can produce time-stamped measurements and notifications or alarms.
The monitoring can be integrated with other sensors.
The monitoring can support a wearable monitoring apparatus for ambulatory operation.
Documented Applications
Monitoring pathological patterns including CHF and ARDS and related conditions.
Monitoring pulmonary edema and related etiologies.
Wearable monitoring apparatus for ambulatory operation.
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