Radio frequency skin treatment device

A device for radio frequency (RF) based treatment of a skin comprising:

• an outer electrode arranged on an operational side of the device;
• inner electrodes arranged on the operational side of the device;
• and
• an RF generator arranged to supply an RF voltage between each inner electrode of all the inner electrodes and the outer electrode,
• wherein the outer electrode surrounds the inner electrodes, and
• wherein the outer electrode has more than one axis of symmetry and surrounds n of the inner electrodes where n is a positive integer, and the each inner electrode is at an equal distance from a common point of intersection of the more than one axis of symmetry and is positioned, with respect to each of the more than one axis of symmetry, either on the more than one axis of symmetry or at a same distance from the more than one axis of symmetry and symmetrically relative to one of the other inner electrodes, and
• wherein the outer electrode has a shape which is one of a triangular, a parallelogram and a trapezoidal.

A device for radio frequency (RF) based treatment of a skin comprising:

• an outer electrode arranged on an operational side of the device and having at least one axis of symmetry;
• inner electrodes arranged on the operational side of the device;
• and
• an RF generator arranged to supply an RF voltage between each of the inner electrodes and the outer electrode,
• wherein the outer electrode surrounds the inner electrodes,
• wherein when the outer electrode has only one axis of symmetry, the inner electrodes are arranged so as to be symmetrically spaced from said one axis of symmetry, and
• wherein when the outer electrode has more than one axis of symmetry and surrounds n of the inner electrodes where n is an odd positive integer, each inner electrode of the inner electrodes is at an equal distance from a common point of intersection of the more than one axis of symmetry and is positioned, with respect to each of the more than one axis of symmetry, either on the more than one axis of symmetry or at a same distance from the more than one axis of symmetry and symmetrically relative to one of the other inner electrodes.