Electronic skin treatment device and method
Disclosed is a method for treating dermis and hypodermis by placing at least a first electrode at the surface of a to-be-treated skin region and contacting a second electrode at another position on the body to be treated then applying between the electrodes a current with pulse component, said current being sufficient to produce electro-osmotic pressure/velocity wavefronts corresponding to the fundamental frequency in blood vessels in the dermis and hypodermis of the skin region.
1. A method for treating dermis and/or hypodermis on a body, the method comprising:
providing at least a first electrode capable of placement at the surface of a to-be-treated skin region having a dermis and a hypodermis with fat globules causing skin dimpling and a second electrode capable of placement at another position on the body to be treated;
applying between the electrodes a current pulse cycling between two values in a range from 0.500 mA to −0.500 mA, said current pulse appearing as a waveform that holds its peak value for at least one mS, wherein the current cycles between the two values at a cycling frequency in the range from 1 to 100 Hz and being sufficient in amplitude and duration to produce electro-osmotic wavefronts corresponding to the cycling frequency of the current pulse; and
cycling the current between the two values to produce the electro-osmotic wavefronts in blood vessels in at least one of the dermis and hypodermis flow in which an electrical double layer formed is much smaller than the characteristic length scale of a channel of such blood vessels;
wherein the current is selected to induce electro-osmotic flow at the cycling frequency, producing a vibratory action to increase blood in the skin region to be treated.
2. The method of claim 1 wherein the current pulse is applied with a cycling frequency in the range from 20 to 100 Hz.
3. The method of claim 2 , wherein the current pulse is sufficient for the electro-osmotic wavefronts to produce the vibratory action in walls of the blood vessels with a frequency corresponding to the cycling frequency.
4. The method of claim 1 wherein applying a current pulse between the electrodes comprises applying a current pulse in the range from 0.100 to 5.0 milliamps measured on a root-mean-square basis.
5. The method of claim 1 wherein placing the first and second electrodes comprises placing them adjacent but separated from each other on the to-be-treated skin region.
6. The method of claim 1 further comprising applying a conductive gel between the skin region to-be-treated and the first electrode.
7. The method of claim 1 further comprising applying a conductive gel between the skin region to-be-treated and the first electrode, said conductive gel comprising an active chemically configured to be driven into the skin region by iontophoresis from the applied current.
8. The method of claim 1 wherein the cycling frequency is chosen in the range from about 35 to about 55 Hz or about 40 to about 50 Hz.
9. The method of claim 1 wherein the fat globules are distending and the to-be-treated skin region exhibits a cellulite condition, and further comprising selecting the current to increase the blood flow through the blood vessels to help reverse excess accumulation of lipids in the fat globules.
10. The method of claim 1 wherein the current has a DC component, such that the waveform consists of DC square wave pulses.
11. The method of claim 1 wherein the current pulse has a waveform chosen from a square, a sawtooth, a triangular, and a trapezoidal waveform or combinations thereof.
12. The method of claim 1 wherein the current pulse is sufficient for the electro-osmotic wavefronts to induce eNOS production in the skin region.
13. The method of claim 1 wherein wavefronts are produced in blood vessels in both of the dermis and hypodermis.