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US 10,238,866 B2Granted
Iontophoresis device with multi-electrode end piece
AssigneeL'oreal
InventorThi Hong Lien Planard-Luong
Life of this patent
Estimating the term…
Abstract
The invention relates to an end piece intended for equipping a device for cosmetic treatment of keratin materials with an electric current, the end piece comprising an application member (6) comprising an electrode (1) and a counter electrode (2), said electrode (1) and counter electrode (2) being separated from one another by an electrically insulating zone (3).
Claims18
An application member configured to be equipped as an end piece of a device for cosmetic treatment of keratin materials with an electric current, the application member comprising:
- an electrode;
- a counter electrode;
- and
- an electrical insulator separating the electrode and the counter electrode,
- wherein the application member is configured to rotate about a rotation axis, and
- wherein a thickness of the electrical insulator, taken in a direction perpendicular to the rotation axis, is greater than a thickness of the electrode and a thickness of the counter electrode, taken in a direction perpendicular to the rotation axis, such that the electrical insulator forms a wall that extends from an outer surface of the application member, beyond the electrode and the counter electrode.
3 more elements
An iontophoresis device comprising:
- an application member comprising:
- an electrode;
- a counter electrode;
- and
- an electrical insulator separating the electrode and the counter electrode;
- a hand piece connected to the application member;
- and
- a power supply configured to provide an electrical current between the electrode and the counter electrode of the application member,
- wherein the application member is configured to rotate about a rotation axis, and
- wherein a thickness of the electrical insulator, taken in a direction perpendicular to the rotation axis, is greater than a thickness of the electrode and a thickness of the counter electrode, taken in a direction perpendicular to the rotation axis, such that the electrical insulator forms a wall that extends from an outer surface of the application member, beyond the electrode and the counter electrode.
7 more elements
A cosmetic treatment method comprising:
- providing an iontophoresis device comprising:
- an application member comprising:
- an electrode,
- a counter electrode, and
- an electrical insulator separating the electrode and the counter electrode;
- a hand piece connected to the application member;
- and
- a power supply configured to provide an electrical current between the electrode and the counter electrode of the application member;
- applying an electric current to a keratin material using the application member;
- and
- optionally applying a cosmetic composition to the keratin material prior to or during the application of the electric current,
- wherein the application member is configured to rotate about a rotation axis, and
- wherein a thickness of the electrical insulator, taken in a direction perpendicular to the rotation axis, is greater than a thickness of the electrode and a thickness of the counter electrode, taken in a direction perpendicular to the rotation axis, such that the electrical insulator forms a wall that extends from an outer surface of the application member, beyond the electrode and the counter electrode.
10 more elements
Dependencies are inferred from the claim text.