Combination of
Conducted RF and Optical
Energies in Aesthetic
Medical Procedures
A new highly efficacious
treatment
Dr. P....
ELOSTM
Technology in Aesthetics
The ELOS advantage
• Synergy -
–electrical (Radio- Frequency) and
–optical (Light) energy
...
Syneron ELOS Technology
• Reduced optical energy
– to a safe level for all skin types
• Electrical RF energy
– Compensates...
RF energy properties
• Well known in medicine
• No effect on melanin
• All RF parameters (Voltage, Current, Impedence)
can...
How does it work?
Pre- Pulse
Test
Light Pulse
Target is
Pre-heated
Impedence of
target is
decreased
RF Pulse
Higher curren...
Pre-Pulse Test
If cooling temperature is too high → COOLING UP
Message appears in the display and the pulse is not
enabled...
Light Pulse
• Light pulse pre-heats target (vascular or pigmented) lesion
• Temperature of the target is higher than the t...
RF Pulse
RF current distribution depends on the impedance distribution
within tissue. Tissue with low impedance conducts h...
Aurora pulse sequence
RF energy
Light
Testing pre-pulse
to ensure
coupling and skin
calibration for RF
monitoring
Intense
...
p u r e s y n e r g y
wavelength [nm]
Absorptionskoeffizient[1/cm]Optical Parameters
Hämoglobin
Melanin
DiodeAlex
Aurora
D...
RF Current Distribution
Cold epidermal layerCold epidermal layer
DermisDermis
Pre-heated targetPre-heated target
Spotsize and Penetration
Spotsize small large
Penetration Depth small deep
p u r e s y n e r g y
RF
Energy
p u r e s y n e r g y
RF – cond.Current
Optical
Energy
Energy
Temperature
Impedance
Pre-Measuring
5 ms – 30 ms
Optical Pul...
Multi-target Effect in skin Renewal
Photo-facial RF
• Number Sessions: 4 - 6
• Session Interval : 2 - 3 weeks
• Skin improvement continues for 3
months post l...
Results – timescale
• Pigmented lesions : 3-5 days.
• Telangiectasia : 3-4 weeks.
• Haemangiomas : 10 mins.
• Skin quality...
p u r e s y n e r g yDevelopment of Laser and Light
SystemsEnergy
Skin
Damage
History Present Future
Successful
treatment ...
Hair Removal
Efficacy/Risk Algorithm
-----------------
Light skin
Dark hair
Dark skin
Dark hair
Light skin
Light hair
Dark...
Light induced temperature distribution
• Light selectively heats
hair shaft.
• Bulb and follicle are
damaged by heat
trans...
RF selectivity - mechanism
Electrodes
• Current density in the
follicle is twice that of
the surrounding tissues
• Heat ge...
RF induced temperature distribution
• RF creates heat in the
30 microns layer
around the hair shaft
• Heated layer include...
RF + Light induced temperature distribution
• Combination of two
energy sources.
• Uniform heating of
the shaft, follicle ...
• Safety:
–less optical energy used.
–Lower incidence of side effects.
• Selective energy delivery to target.
• Multiple s...
Light brown hair (Aurora DS treatment)
Optical pulse at 20J/cm2
with no additional RF
energy.
Optical pulse at 20J/cm2
and...
AfterBefore
White hair (Aurora DS Treatment)
Skin Renewal
Aurora SR
treatment
Before 2weeks after
Aurora SR treatment
Aurora SR Treatment
Lentigines
Before
After
Aurora Photo-rejuvenation Treatment
Before
After
Aurora Photo-rejuvenation Treatment
Before
After
Aurora Photo-rejuvenation Treatment
Before After
Aurora Photo-rejuvenation Treatment
Before After
Before
22weeks afterweeks after
Aurora SR treatmentAurora SR treatment
Age spots and fineAge spots and fine
lineslines
p u r e s y n e r g y
Temperature
Distribution
Effect of conducted RF
• Conducted RF heats the tissue between the two
elec...
p u r e s y n e r g y
Single
Energy
Single
Wavelength
Laser
IPL + long-pulsed +Multi-
Wavelength Laser
Single
Energy
Multi...
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Dr. Patrick Treacy discusses RF and Optical Energies in Aesthetic Medical Procedures

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Dr. Patrick Treacy discusses the 'Combination of Conducted RF and Optical Energies in Aesthetic Medical Procedures A new highly efficacious treatment'
Original lecture made for Syneron Workshop circa 2006

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Dr. Patrick Treacy discusses RF and Optical Energies in Aesthetic Medical Procedures

  1. 1. Combination of Conducted RF and Optical Energies in Aesthetic Medical Procedures A new highly efficacious treatment Dr. P. Tracy
  2. 2. ELOSTM Technology in Aesthetics The ELOS advantage • Synergy - –electrical (Radio- Frequency) and –optical (Light) energy • Two different energy sources - –selective mechanisms of action –optimal treatment synergy • Active epidermal cooling • Active dermal monitoring TM
  3. 3. Syneron ELOS Technology • Reduced optical energy – to a safe level for all skin types • Electrical RF energy – Compensates for the reduction of optical energy – RF that is not sensitive to skin or target colour ELOS technology replaces up to 60% of the optical energy by the synergistic use of RF bi-polar current, maximising efficiency and minimising unwanted effects.
  4. 4. RF energy properties • Well known in medicine • No effect on melanin • All RF parameters (Voltage, Current, Impedence) can be measured and controlled with high time resolution • Skin impedence depends on temperature and can be used for skin temperature monitoring where impedance drop is about 2% per °C
  5. 5. How does it work? Pre- Pulse Test Light Pulse Target is Pre-heated Impedence of target is decreased RF Pulse Higher current in zone with low impedence Target is heated More effectively than skin Contact test Cooling test Tissue pre- Heating with RF
  6. 6. Pre-Pulse Test If cooling temperature is too high → COOLING UP Message appears in the display and the pulse is not enabled. If contact is not good → BAD COUPLING Message appears in the display and the pulse is not enabled. Pre- Pulse Test Light Pulse Target is Pre-heated Impedance of target is decreased RF Pulse Higher current in zone with low impedance Target is heated More effectively than skin Contact test Cooling test Tissue pre- Heating with RF
  7. 7. Light Pulse • Light pulse pre-heats target (vascular or pigmented) lesion • Temperature of the target is higher than the temperature of the surrounding tissue. • Impedance of the target is lower than the impedance of the surrounding tissue • Cooling increases the impedance of the epidermis making it resistant to RF heating. Pre- Pulse Test Light Pulse Target is Pre-heated Impedance of target is decreased RF Pulse Higher current in zone with low impedance Target is heated More effectively than skin Contact test Cooling test Tissue pre- Heating with RF
  8. 8. RF Pulse RF current distribution depends on the impedance distribution within tissue. Tissue with low impedance conducts higher RF current while zones with high impedance conduct lower RF current. Cooled epidermis conducts low current and is heated less. Pre-heated target conducts higher current and is heated more effectively by the RF current. Pre- Pulse Test Light Pulse Target is Pre-heated Impedance of target is decreased RF Pulse Higher current in zone with low impedance Target is heated More effectively than skin Contact test Cooling test Tissue pre- Heating with RF
  9. 9. Aurora pulse sequence RF energy Light Testing pre-pulse to ensure coupling and skin calibration for RF monitoring Intense pulse Fine heat adjustment RF energy
  10. 10. p u r e s y n e r g y wavelength [nm] Absorptionskoeffizient[1/cm]Optical Parameters Hämoglobin Melanin DiodeAlex Aurora DYE DIODE-Laser for water absorption
  11. 11. RF Current Distribution Cold epidermal layerCold epidermal layer DermisDermis Pre-heated targetPre-heated target
  12. 12. Spotsize and Penetration Spotsize small large Penetration Depth small deep p u r e s y n e r g y RF Energy
  13. 13. p u r e s y n e r g y RF – cond.Current Optical Energy Energy Temperature Impedance Pre-Measuring 5 ms – 30 ms Optical Pulse 7 - 12 ms RF – Current post-heating 150 ms- 200 ms Pulse + Safety STOP Impedance all 3 ms
  14. 14. Multi-target Effect in skin Renewal
  15. 15. Photo-facial RF • Number Sessions: 4 - 6 • Session Interval : 2 - 3 weeks • Skin improvement continues for 3 months post last treatment. • Maintenance : 2-3 treatments per year.
  16. 16. Results – timescale • Pigmented lesions : 3-5 days. • Telangiectasia : 3-4 weeks. • Haemangiomas : 10 mins. • Skin quality : 2 treatment sessions.
  17. 17. p u r e s y n e r g yDevelopment of Laser and Light SystemsEnergy Skin Damage History Present Future Successful treatment of the target
  18. 18. Hair Removal Efficacy/Risk Algorithm ----------------- Light skin Dark hair Dark skin Dark hair Light skin Light hair Dark skin Light hair Efficacy High High Low Low Risk (Adverse Effects) Low High Low High
  19. 19. Light induced temperature distribution • Light selectively heats hair shaft. • Bulb and follicle are damaged by heat transfer from hair shaft Shaft Follicle
  20. 20. RF selectivity - mechanism Electrodes • Current density in the follicle is twice that of the surrounding tissues • Heat generation is proportional to square of current density
  21. 21. RF induced temperature distribution • RF creates heat in the 30 microns layer around the hair shaft • Heated layer includes hair follicle and bulb
  22. 22. RF + Light induced temperature distribution • Combination of two energy sources. • Uniform heating of the shaft, follicle and bulb.
  23. 23. • Safety: –less optical energy used. –Lower incidence of side effects. • Selective energy delivery to target. • Multiple skin/hair types effectively treated: –Dark skin - treated without compromising efficacy or safety. –Lighter hairs – treated effectively ELOSTM major advantages
  24. 24. Light brown hair (Aurora DS treatment) Optical pulse at 20J/cm2 with no additional RF energy. Optical pulse at 20J/cm2 and RF energy of 20J/cm3 .
  25. 25. AfterBefore White hair (Aurora DS Treatment)
  26. 26. Skin Renewal Aurora SR treatment
  27. 27. Before 2weeks after Aurora SR treatment
  28. 28. Aurora SR Treatment Lentigines Before After
  29. 29. Aurora Photo-rejuvenation Treatment Before After
  30. 30. Aurora Photo-rejuvenation Treatment Before After
  31. 31. Aurora Photo-rejuvenation Treatment Before After
  32. 32. Aurora Photo-rejuvenation Treatment Before After
  33. 33. Before 22weeks afterweeks after Aurora SR treatmentAurora SR treatment Age spots and fineAge spots and fine lineslines
  34. 34. p u r e s y n e r g y Temperature Distribution Effect of conducted RF • Conducted RF heats the tissue between the two electrodes only and directs the thermal effect on the target ( Bipolar System ) • No Radiance (No Microwave). • The penetration depth is depending on the distance of the electrodes. • Controlled heating of the target structure. • Painless and no side effects.
  35. 35. p u r e s y n e r g y Single Energy Single Wavelength Laser IPL + long-pulsed +Multi- Wavelength Laser Single Energy Multiple Wavelength Multiple Wavelength Multiple Energy ELOS Technology - Positioning 1980-2000 1990-2000 2000-2010

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