Epidermal Cooling Total Solution

Purpose of Epidermal Cooling

1. The most important purpose of cooling is to protect the epidermis. A lot of melanin of epidermis absorbs light energy, when the energy accumulates to a certain amount, it will lead to blisters, scarring or pigment changes. So epidermis cooling is needed.
2. Another important purpose of Cooling is to make high-energy density reach the target tissue without damaging the epidermis, such as hair removal with long pulsed ND:YAG laser, we use sapphire contact cooling.
3. Reducing the pain. The most sensitive state of nerve endings in the normal body temperature is about 36.8℃, the greater difference in temperature, the more insensitive of nerve ending. Epidermis cooling brings anesthetic effect to alleviate pain.There is also some light therapy with epidermis cooling may invalid:
(1) Because target tissues is water, the cooling of CO2, and Er: YAG laser treatment does not make sense.
(2) As for the Q-switched laser, cooling also make little clinical significance.

The Common methods of Epidermis Cooling

1. Contact Cooling
Generally sapphire is used as material of contact cooling, All Pmise IPL, E-light, long-pulsed 1064nm ND:YAG laser and 940nm Diode laser equipment are equipped with contact cooling sapphire. Making the temperature of sapphire to 4℃ or lower in advance, then start treatment when handle fully contact the skin. The demand of contact cooling is related to spot size, frequency, energy density and pulse width.
2. Dynamic cooling Device (DCD)
The cooling efficiency is 2 times of contact cooling, using the condensing agent (PTFE) Spray 80-100ms will not frostbite skin, continuously spray will erode skin and cause PIH(Post-Inflammatory Hyperpigmentation). DCD synchronization method is essential; otherwise it will lead to serious consequences.
3. Ice
(1)It can be placed in plastic bag, put on the skin in a few minutes before treatment.
(2)Ice can be used for large area cooling.
(3) If being left long time, it also has analgesic effect.
(4)For light therapy of the skin, put ice on the skin for10s or 1min obtained the same effect.
(5)It can simply protect skin before treatment.
4. Cooling gel
Just like a swimming pool built on the skin, it suck the heat from the skin, so that the temperature drop, cooling gel is both a good transfer agent in light and heat, reuse is not allowed, which bring to too much trouble for the operation, and cause skin infection if it is used improperly.
5. Cold wind
To meet the required cooling capacity, we need a few seconds to blow skin. However, no frostbite, no consumable, no influence on beam, as long as ear, nose and other parts are protected, it is still a good method of Epidermis cooling. The nozzle is close to the skin as much as possible to achieve greater air flow during treatment.

Application of Epidermis Cooling

1. The cooling Equipment for Hair Removal Applications
(1) All of IPL, E-light.
(2) Diode laser
(3) Long pulse ND:YAG laser Pmise hair removal equipment is all adopt the sapphire contact cooling without DCD, the main reasons as follow:
a. To avoi d the consumable.
b. DCD synchronization method is essential; otherwise it will lead to serious consequences.
c. Contact cooling can reduce the distance between the light and target tissue, which obtain good result.
2. Pmise Cooling Equipments for Pigmentation
We recommend IPL and E-light for freckles and sunspots with contact cooling system. We recommend single pulse 400mj Q-Switched Laser(Mv10,MV11) and Pmise-1064QA for melasma, age spots, CALMS, etc without cooling system.
3. Epidermis Cooling for Vascular Disease
(1)Telangiectasia generally does not require a strong cooling that may result in ineffective treatment, because most of telangiectasia exists in the papillary layer closing to epidermis. Good protection for epidermis will affect treating result on telangiectasia, so we suggest reducing cooling time or proper cooling temperature.
(2) Naevus Flammeus and Hemangiomas
Because i t is large area capi l lary malformations, and needs a higher energy density, epidermal cooling is necessary. Contact sapphire cooling of Pmise long-pulsed 1064nm ND:YAG laser and IPL, and E-light is ideal.
4. Non-ablative Skin Resurfacing
Technologies including Pmise RF series, E-Light Series and IPL series have good epidermis cooling effect, because the core of the reconstruction is to reconstruct the dermal collagen.
5. Ablative Skin Resurfacing
We recommend Pmise Pmise-10600 series, Pmise-2940 series and Pmise-1550 fractional laser series. Because the target tissue is water, there is no need cooling.