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AssigneeKoninklijke Philips Electronics N.V.
InventorsRalf Schmidt, Olaf Such, Christian Reichinger, Michael Perkuhn, Harald Reiter, Andras Montvay, Josef Lauter
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The invention relates to a wearable device arranged for enabling a bioelectrical interaction with an individual when being brought into contact with the individual's skin I, said device comprising electrodes 2 arranged to carry out said interaction by means of a first electrical signal, said electrodes comprise motion artifact detection means 4. The electrode assembly 1 comprises the electrode 2 arranged to carry out a bioelectrical interaction with the individual by means of measuring an electrical signal on the body of the individual I and/or applying an electrical signal to the body of the individual. In order to enable said bioelectrical interaction the electrode 2 is provided with an electrical cable 2a. According to the invention, the electrode 2 is arranged with a pressure sensor 4. The pressure sensor 4 is arranged to measure a normal force component of an external force applied to the electrode due to movement of the individual. Preferably the pressure sensor 4 is a force/pressure sensitive resistor or a capacitive pressure sensor. The pressure sensor is arranged to produce an electrical signal, referred to as the second signal, the magnitude of the second signal being proportional to the pressure load. The pressure sensor 4 is arranged with cables 4a, 4b for purposes of signal processing.
A wearable device (30) arranged for enabling a bioelectrical interaction (M,S) with an individual by means of a first signal (S), said device comprising an electrode (2) having a contact surface arranged to be brought into contact with the individual's skin (I) for carrying out said interaction, the electrode comprising motion artifact detection means (4), characterized in that the motion artifact detection means (4) is arranged to determine a component normal to the contact surface of an external force applied to the electrode under operating conditions, said motion artifact detection means being arranged to provide a second signal (M) and comprising motion artifact correction means (20) to process the second signal in order to correct the value of the first signal for a motion artifact.
An electrode assembly (1) comprising an electrode having a contact surface, the assembly being arranged to enable a bioelectrical interaction with an individual by means of a first signal (S) when the contact surface is brought in contact with the individual's skin, said electrode assembly comprising motion artifact detection means (4), characterized in that the motion artifact detection means (4) is arranged to determine a component normal to the contact surface of an external force applied to the electrode under operating conditions, said motion artifact detection means being arranged to provide a second signal (M), related to the external force.
Dependencies are inferred from the claim text.