Ellipse | IPL Treatments
Ellipse / SWT® Treatments
Intense Pulsed Light
Intense pulsed light, or IPL, is widely used treatment when it comes to cosmetic dermatology. The light therapy procedure treats countless skin issues like uneven skin tone, wrinkles, blemishes, large pores, and redness.
Intense pulsed light therapy is as simple as treating skin with a series of light pulses, customized to your skin’s needs. It can be used on the face, hands, or other areas of the body.
IPL is entirely non-invasive, requires no recovery time, and can improve your appearance for up to a year.
What is IPL?
Intense pulsed light (IPL) is a technology used to perform various skin treatments for aesthetic and therapeutic purposes, including hair removal, photorejuvenation(e.g. the treatment of skin pigmentation, sun damage, and thread veins) as well as to alleviate dermatologicdiseases such as acne.
The technology uses a high-powered, hand-held, computer-controlled flashgun to deliver an intense, visible, broad-spectrum pulse of light, generally in the visible spectral range of 400 to 1000 nm. Various cutoff filters are used to selectively filter out lower wavelengths, especially potentially damaging ultra violet light.
The resulting light has a spectral range that targets specific structures and chromophores (e.g. melanin in hair, or oxyhemoglobin in blood vessels) that are heated to destruction and reabsorbed by the body.
IPL shares some similarities with laser treatments, in that they both use light to heat and destroy their targets. But unlike lasers that use a single wavelength (colour) of light which typically matches only one chromophore, and hence only one condition, IPL uses a broad spectrum that when used with filters, allows it to be used against several conditions.
Wrinkle Filler Injections
Wrinkle filler injections are not permanent – their effects last for about six months before you will need another injection treatment to restore smoothness and fullness.
Like wrinkle filler injections, Botox® is not a permanent wrinkle solution. To maintain your youthful and wrinkel-free visage another injections are required within every three to six months.
- Anagen phase: The growing phase of the hair. During early anagen, new hair grows from the hair follicle, pushing out old hair from the hair shaft.
- Catagen phase: The hair bulb is degraded, cell growth and melanin production stops, and the hair bulb is moved upwards to the skin surface.
- Exogen phase: The hair falls out of the hair follicle.
- Telogen phase: The typical resting phase. The length of the telogen phase depends on the anatomical site.
Hair Removal Intervals
Historically, the 1-2-3 rule has been used to determine treatment intervals:
- 1 Month for the Face
- 2 Months for the Torso
- 3 Months for the extremities
While this is simple, it is not perfect. Consolidating results from numerous users has given the following table:
Note that treatments on male back are unlikely to give total success unless the patient is aged around 30-35 years or older. This is simply because until the age of 30-35 new hair will be created by hormonal changes, as part of the aging process. For male patients under aged 30 it is recommended to offer hair management, a treatment of the existing hair approximately 2 or 3 times per year.
Factors acting directly against the treatment
Patients on topical or systemic steroid medication or onn on-steroidal anti-inflammatory drugs (NSAID). Ellipse treatments produce a desired low-grade inflammation. Steroids and anti-inflammatory drugs act against such inflammation reducing or negating the effectiveness of the treatment.
- Patients with any disease or genetic condition causing photosensitivity to light with in the range of wavelengths emitted by the Ellipse applicator used, as this increases the likelihood of a burn or violent erythema.
- Patients undergoing treatment with any medication causing photosensitivity to light within the range of wavelengths emitted by the Ellipse applicator used, as this increases the likelihood of a burn or violent erythema. Note that some natural remedies such as St John’s Wort (Hypericum perforatum) cause photosensitivity.
- Patients undergoing treatment with anti-coagulants,as these increase the risk of bruising after treatment. Note that natural remedies containing Gingko biloba have powerful anticoagulant properties.
- Patients suffering from long term diabetes,as diabetes may affect the skin healing process.
- Patients suffering from haemophilia,or other coagulopathies (clotting disorders),as these significantly increase the risk of bruising during and after treatment.
- Patients tending to produce keloids or hypertrophic scars.
- Patients with sun-tanned skin or fever.
- Patients who have received gold injections where there has been some leakage/spillage into the epidermis. This presents as an area of dark grey tissue which will absorb the light energy.
- Permanent make-up (dark colours in particular) will absorb the light energy and the patient may feel a burning sensation (with burns in worst case). These areas will be covered with white paper. This is also the case if the patient has a tattoo.
- There are isolated reports of problems caused by treating over earlier fat injections and some fillers – so users should take extra care in treating of earlier fat injections, or over unknown fillers.
The type or colouring is determined by the amount of pigment (melanin) contained in the skin cells, and this is determined by heredity and race. Skin type is not changed by exposure to sunlight, nor by age. As well as determining the default energy of a treatment, skin type also determines the length of time taken to produce a reaction to that treatment. Darker skin types respond more slowly to intense pulsed light and their therapeutic window for treatment (the zone where a beneficial result occurs without the risk of side-effects) is smaller. This means that the risk of side-effects is higher in darker skin types. It is essential to determine the skin type accurately to assess both the risk of side effects and the response time. The following points should be noted:
- Hair colour may be artificial.
- The patient may be wearing coloured contact lenses.
- The apparent skin colour may be the result of cosmetics or sun exposure.
The actual skin colour is better determined by parting the hair and examining the scalp, since hair normally protects the skin of the scalp from suntan.
Ellipse grades the degree of suntan as: None; Light; Medium; Medium-Heavy; Heavy. In the 30 days before and 30 days after treatment, clients should avoid the sun, or use sun-protection (SPF 50) when sun exposure is unavoidable. This is especially true for darker skinned clients, because sun-exposure increases the risk of post-inflammatory hyperpigmentation. Limiting sun exposure in vascular treatments is especially important as recent exposure (especially exposure recent enough to still give a slight feeling of warmth) can cause significant problems as the warmth increases the size of blood vessels in the skin. This increases the amount of the chromophore haemoglobin present. In the 30 days prior to treatment,do not take solarium, sunbathe or use tanning sprays or a sunbed. This will increase the level of melanin in the skin and make treatments more uncomfortable with an increased risk of side effects.
Physics - light as electromagnetic radiation (EMR)
Put simply, light is just a form of energy, and all laser or intense pulsed light treatments use this energy to do work. The light travels in waves, similar to waves travelling on the surface of a pond.
The Waves on a pond (like sound waves) are a mechanical wave, but light (just like X-Rays or Radio Waves) are slightly different: they are electromagnetic waves (waves of pure energy). The various types make up the electromagnetic spectrum, or spectrum of electromagnetic radiation. This spectrum of electromagnetic radiation stretches from gamma rays to radio waves, as shown below. There are three ways to describe the waves, according to type:
Visible and Infrared Light, used by all intense pulsed light sources and most medical lasers are described by their wavelength (nanometres). Microwave and Radio waves are described by their frequency (Hertz). Lasers and intense pulsed light sources mainly use the visible to near infrared part of the spectrum (Fig 10), with wavelengths from 400 nanometres (nm) to 1 200nm. There are exceptions such as the CO2 laser (10 600nm) and Er:YAG laser (2 940nm).
While light travels in waves, the waves are made up of “particles” of light called photons. Whenever a photon is absorbed, its energy is changed into heat (photothermolysis), and this absorption of light energy is the basis for all light/tissue interaction. Light energy delivered to the skin is measured in Joules and is best expressed as the energy delivered to a certain area (also called the fluence) measured in J/cm . The length of time that the light is exposed to the skin is called the pulse duration, and is measured in milliseconds (ms).
Laser and intense pulsed light(IPL)
In recent years the distinction between laser and Intense Pulsed Light has become less clear in the minds of the users, and the term “laser” hair removal is increasingly used for any light-based treatment. Technically, the light emitted by an Intense Pulsed Light system differs from the light emitted by a laser as indicated on the right:
Light – Tissue interaction
A chromophore is a chemical within the skin that absorbs light of certain wavelengths. When a photon is absorbed, it surrenders its energy to the chromophore or to water. The photon no longer exists and its energy is changed to heat in the chromophore. This is similar to the way in which a dark surface becomes warmer than a white surface when exposed to sunlight. The most important substances in the skin that are capable of selective light absorption are:
- Melanin (found in the epidermis,hair and hair follicles).
- Oxyhemoglobin + haemoglobin (found in the blood).
Protoporphyrin is also capable of selective light absorption. This chemical is produced naturally in quite low levels, and in much higher levels by the acne bacterium P acnes. The levels of protoporphyrin in non-acne skin can be heightened by the introduction of the chemical 5-ALA into the skin. Absorption by protoporphyrin will be discussed later. The degree of absorption by each chromophore depends on the wavelength of the light used.
Thermal relaxation time and photothermolysis
The xenon lamp of an IPL system emits a wide spectrum of different wavelengths at the same time (from approximately 240 – 1200nm). This light is then filtered to match different applications. Two different types of filtering can be distinguished:● Single mode filtering as used in the first generation intense pulsed light systems. These systems use a coloured filter to remove energy below a given wavelength (on the left side of the absorption curve). Depending on the type of filter the emitted light typically starts somewhere between 510 and 720nm and goes up to 1200nm.
Ellipse Dual Filter
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