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EXCEL HR OPERATOR MANUAL
D1796, REV. D, 12/16
Treatments
The excel HR can be used to remove hair, to treat vascular and benign pigmented lesions, and to treat
wrinkles. Perform and observe test spots prior to treatment. Potential adverse reactions may take 24-72
hours to appear. Pigmentation changes for darker skin type patients may develop up to several weeks
following treatment.
• Test spot fluence settings are determined by evaluating skin type and, for hair removal
procedures, hair color, thickness and density.
• Treatment settings should be selected based on test spot clinical response.
• Perform test spots on the same area as being treated.
• Deliver single pulses to assess clinical response and potential adverse reactions.
• Deliver 3 to 4 adjacent pulses to assess skin's reaction to bulk heating.
When used for hair removal, 755 nm or 1064 nm laser energy is absorbed by melanin in the hair follicle
and shaft, leading to selective damage to the hair structure. Because the laser energy is absorbed by
melanin in the epidermis (as well as by the desired target structures), the epidermal-cooling feature
integrated in the handpiece is used to limit the temperature rise in the epidermis, allowing selective
targeting of hair.
When treating vascular lesions with the 755 nm or 1064 nm wavelength, the blood temperature within the
vessel is elevated to a temperature that causes coagulation of the vessel wall. Since 755 nm and 1064
nm laser energy is also absorbed by melanin in the epidermis (as well as the desired target of
hemoglobin), the epidermal-cooling feature integrated in the handpiece is used to limit the temperature
rise in the epidermis.
When treating benign pigmented lesions with the 755 nm wavelength, the excel HR specifically targets
the superficial pigment in the epidermis. Use of a higher window temperature (less cooling) is appropriate
when treating benign pigmented lesions.
When treating wrinkles with the 1064 nm wavelength, laser energy is absorbed in the dermis and
accumulates over a series of passes, elevating dermal tissue temperatures. Collagen remodeling and
neocollagenesis are stimulated, while the epidermis remains protected by the handpiece cooling window.
The excel HR gives the user the flexibility to adjust key parameters. Spot size, pulse duration, fluence,
and repetition rate can be adjusted based on indication, target size, and skin type.
It is recommended that the clinical user always begin with a low fluence and observe the epidermal
response before increasing the setting. Increasing the fluence may provide increased efficacy; however,
factors such as skin type may limit the maximum usable energy without unwanted epidermal damage.
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