Self-regulated electrostimulation and/or iontophoresis device
AssigneeFeeligreen
InventorChristophe BIANCHI
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Abstract
The invention concerns an electrostimulation and/or iontophoresis device comprising a patch (10) suitable for application to a user's skin (12) and a voltage generator (22) suitable for applying a low intensity current through the user's skin by a system of electrodes located in said patch; This device is characterised in that it comprises a self-regulator (16) that varies the voltage supplied by the voltage generator as a function of the continuous measurement of the resistivity of the user's skin beneath said patch The resistance value of the skin provided by an element for measuring the resistance of the skin (24) yields the resistivity measurement.
Claims9
Electrostimulation and/or iontophoresis device comprising a patch (10) suitable for application to a user's skin (12) and a voltage generator (22) suitable for applying a low intensity current through the user's skin by of a system of electrodes located in said patch;
- wherein said device comprises a self-regulator (16) that varies the voltage supplied by said voltage generator as a function of the continuous measurement of resistivity of the user's skin beneath said patch;
- wherein said self-regulator (16) comprises an element for measuring resistance of the skin (24), resistance value allowing said self-regulator to calculate resistivity value of the user's skin under said patch.
Device according to the preceding claim, wherein an alarm is triggered when the resistivity value of the skin is not included between a minimum and a maximum value.
Device according to any of the preceding claims, wherein said self-regulator (16) comprises an element for measuring the temperature of the skin (26).
Device according to any of the preceding claims, wherein said system of electrodes comprises several electrodes having a first polarity (60, 62, 64, 66) connected to one of the terminals of said voltage generator and several electrodes of the second polarity (68, 70, 72) connected to the other terminal of said voltage generator, wherein said electrodes of a first polarity are arranged alternately with the electrodes of the second polarity and the electrodes at both ends of said patch have the same polarity.
Device according to any of the above two claims, wherein each of said electrodes, anode or cathode, comprises several contact points in order to distribute the current applied over several interfaces and therefore divide the local current density.
Dependencies are inferred from the claim text.