Patent ID: 8900231

Claim:
A system for applying RF energy to aplurality of discrete regions of skin, said system comprising: an applicator comprising an electrode including flat parts and a plurality of protruding electrically conducting spaced apart pins terminated by sharp tips, the pins configured to penetrate throguh epidermis into the dermis and apply RF energy to one or more discrete tissue volumes that are completely located in the dermis, so as to heat the tissue volumes to a coagulation temperature; a radio frequency energy source configured to apply radio frequency energy to the electrode with at least the plurality of protruding electrically conducting spaced apart pins to generate an electrical current in the dermis from the tips higher than from the flat parts of the electrode; a control unit configured to allow input selected values of parameters of the RF energy to at least one located below skin tissue surface dermal tissue volume producing dermal tissue temperature increase to cause thermal collagen remodeling; and tubes in flat regions between the protruding electrically conducting spaced apart pins for circulating a cooling fluid there through and cooling the electrode and the skin surface.