Method and device for minimally invasive skin and fat treatment

A device for thermal fat destruction and skin tightening in comprising:

• (a) an internal RF electrode comprising
• a handle,
• a cannula shaft extending from the handle and comprising a dielectric material, the shaft being insertable inside a body at a treatment area, and
• an electrode tip positioned on the cannula at a location distal to the handle, the electrode tip comprising a RF conductive material;
• (b) an external electrode comprising a RF conductive element, the element being positionable on a skin surface above the treatment area of the internal electrode and having a fractional structure comprising a plurality of conductive sub-elements, the skin contact dimensions of each measure up to 1 mm;
• (c) a RF generator connected to the internal and external electrodes, the RF generator for delivering RF energy to the internal electrode at the level sufficient to destroy a dipose tissue in vicinity of the electrode tip and to the external electrode at a level sufficient to create coagulation zones on the skin surface under the conductive sub-elements.

A device for thermal fat destruction and skin tightening comprising:

• (a) at least one internal RF electrode comprising
• a handle,
• a cannula shaft extending from the handle and comprising a dielectric material, the shaft being insertable inside a body at a treatment area, and
• an electrode tip positioned on the cannula at a location distal to the handle, the electrode tip comprising a RF conductive material;
• (b) a skin protruder comprising a body defining a cavity open to a surface of the protruder body, the cavity surface of the body being positionable on a skin surface above the treatment area of the internal electrode, the skin and associated underlying tissue being drawn into the cavity to create a skin protrusion in response to a drawing force, the skin protruder further comprising an inlet for the RF electrode allowing the treatment of the tissue drawn into the cavity;
• and,
• (c) a RF generator connected to the RF electrode, the RF generator for delivering RF energy to the RF electrode at the level sufficient to destroy adipose tissue in vicinity of the electrode tip.

A device for thermal fat destruction and skin tightening comprising:

• (a) at least one internal RF electrode comprising
• a handle,
• a cannula shaft extending from the handle and comprising a dielectric material, the shaft being insertable inside a body at a treatment area, and
• an electrode tip positioned on the cannula at a location distal to the handle, the electrode tip comprising a RF conductive material;
• (b) an external electrode comprising an electrode body, the electrode body being positionable on a skin surface above the treatment area of the internal electrode and having a plurality of conductive elements;
• (c) a RF generator connected to the internal and external electrodes, the RF generator for delivering RF energy to the internal electrode at the level sufficient to destroy a dipose tissue in vicinity of the electrode tip and to the external electrode at a level sufficient to sufficient to heat the skin below second electrode to a sub-necrotic level;
• and
• (d) a measuring system in communication with the electrodes and the RF generator for monitoring at least one electrical parameter of RF energy for each conductive element selected from the group consisting of current, voltage and impedance.

A method for thermal fat destruction and skin tightening comprising the steps:

• (a) drawing the skin to create a protruded skin volume, a portion of which being adipose tissue;
• (b) inserting at least one RF electrode into the adipose tissue inside protruded volume;
• and
• (c) applying RF energy to the electrode sufficient to thermally destroy adipose tissue in vicinity of electrode.

A method for thermal fat destruction and skin tightening comprising the steps:

• (a) inserting an internal RF electrode into adipose tissue under the skin surface;
• (b) positioning an external RF electrode on the skin surface above the first electrode;
• and
• (c) applying RF voltage to the electrodes sufficient to create thermal destruction of adipose tissue in vicinity of the internal electrode and sufficient to heat the skin up to sub-necrotic temperature in vicinity of external electrode.