System for the remote monitoring of the hydration status of a living being
AssigneeEcole Polytechnique Federale De Lausanne (Epfl)
InventorsMihai Adrian Ionescu, Hoël Guerin
Life of this patent
Estimating the term…
Abstract
System for monitoring the hydration status of a living being by exploiting the modulation of backscattered RF electromagnetic waves from a wearable patched placed on the skin, said system comprising: a RF-tag adapted to be directly or indirectly fixed to the skin and containing at least one passive integrated circuit coupled to an antenna; an electromagnetic RF power source for supplying different signal frequencies to said RF-tag; a reader adapted to receive and to process the backscattered electromagnetic waves generated by said electromagnetic power source.
Claims22
A wearable system for topically monitoring a physiological parameter reflecting a hydration status of a body of a living being, the system comprising:
- a RF-tag adapted to be directly or indirectly fixed to the skin of the living being and including a passive integrated circuit coupled to an antenna;
- an electromagnetic RF power source for supplying an incident wave having different signal frequencies to the RF-tag;
- a RF reader adapted to receive and to process backscattered electromagnetic waves that are backscattered by the RF-tag based on the incident wave generated by the electromagnetic RF power source to measure a variable impedance of the skin, and
- a data processor for determining a hydration level of the body of the living being based on measured variable impedance to determine whether the body of the living being is dehydrated.
A method for monitoring a hydration status of a body of a living being with a wearable system, the wearable system including a RF-tag having a passive integrated circuit coupled to an antenna, an electromagnetic RF power source, and a RF reader adapted to receive and to process backscattered electromagnetic waves backscattered by the RF-tag, the method comprising the following steps:
- directly or indirectly fixing the RF-tag to a skin of the living being;
- generating towards the RF-tag an incident wave having different signal frequencies with the RF power source to cause the backscattered electromagnetic waves from the RF-tag;
- collecting and processing the backscattered electromagnetic waves by the RF reader generated by the power source to determine a variable impedance of the skin, and
- determining a hydration level of the body to determine whether the body of the living being is dehydrated by processing the measured variable impedance.
Dependencies are inferred from the claim text.