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THE EVOLUTION OF IPL The MaxG handpiece from Palomar Medical helps clear vascular and pigmented lesions. The dual ���lter technology treats skin with 500nm-670nm and 870nm-1200nm wavelengths simultaneously. Physicians can adjust the pulse width from 5ms to 100ms with energy up to 80J/cm2. The MaxG features a large spot size of 10mm x 15mm. Contact: 800.725.6627, palomarmedical.com. The Apex IPL and Er:YAG system from Ellman International includes multiple IPL treatment ���lters for hair removal, skin rejuvenation, acne treatment, and vascular and pigmented lesions. Additional features include closed loop cooling and a large 35mm x 15mm spot size. Contact: 800.835.5355, ellman.com. Emvera���s AestheLite features a user-friendly interface, dual handpieces and multiple rectangular pulse waveform technology that allows users to adjust pulse width and pulse delays. Contact: 888.886.8402, emvera.com. The table-top M22 from Lumenis uses Optimal Pulse Technology that allows operators to control pulse shape, pulse duration and ���uence. The device comes pre-loaded with treatment parameters and one treatment head for all IPL applications. Contact: 877.586.3647, aesthetic.lumenis.com. Over the past 20 years, IPL engineers have remedied these problems through a variety of advances that make today���s IPLs more predictable and more effective at treating a range of indications like redness, photoaging and permanent hair removal. ���The original Photoderm technology used Pulse Forming Network supplies to deliver the energy,��� says Scott Davenport, senior director of product development at Cutera (cutera.com). ���These produced a spiked pulse that can produce spectral variability. Because as the ���uence is increased, the light spectrum also shifts, which affects the tissue response.��� Cutera chose a regulated rectangular power supply pulse combined with closed loop power control���via in-handpiece photodetectors���to keep the ���uence steady in its LimeLight handpiece. ���This makes the treatment more predictable and safer, especially for darker skin types,��� says Davenport. In an effort to create more uniform energy delivery in its BBL module, Sciton uses an over/under twin lamp delivery system. ���It allows for high power without creating hot spots and without having areas that go untreated,��� says Cheryl Deguara, Sciton BBL product manager at Sciton (sciton.com). ���Not only is the energy delivered evenly, there is a feedback mechanism that allows us to pulse it in a way that keeps the ���uence in a maximum therapeutic range.��� The ability to control ���uence and pulse durations through user-friendly software improves patient safety and allows users to adapt treatment parameters for speci���c indications. ���With CO2 lasers, they went from continuous wave to super pulse,��� says Eric Fuller, president, Emvera (emvera.com). ���We took that concept and brought it to our IPL.��� The company���s ���Variable Synchronized Pulse��� control includes ���ve to 12 sub-pulses within each pulse. In addition to controlling the number of sub-pulses, practitioners can stretch out pulse delay times to allow for more or less thermal relaxation time during treatment. ���This allows us to treat darker skin types, not skin type VI, but darker than you could previously treat with IPL,��� says Fuller. "It allows for higher power without creating hot spots and without having areas that go untreated." 26 MARCH/APRIL 2013 | MedEsthetics