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Fractional Laser Beam | Medical Aesthetic Application

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Author : Jack
Update time : 2024-05-31 14:19:49
Understanding Fractional Laser Beams Theories
Fractional laser technology is a groundbreaking advancement in the field of dermatology and cosmetic treatments. It works by using high-intensity laser beams to target specific areas of the skin, promoting rejuvenation and healing. Here's a comprehensive look at how fractional laser beams operate and their applications in both non-ablative and ablative photothermolysis.

How Fractional Laser Beams WorkHow Fractional Laser Beams Work
When the high-intensity laser beam hits the skin, it is absorbed by the chromophores (the pigment-containing cells) in the target area. The electromagnetic energy from the laser is then converted into thermal energy, causing a rapid increase in temperature. This thermal effect induces a controlled injury to the skin cells, which triggers the body's natural healing process.

During this process, new Heat Shock Protein 70 (HSP-70) cells are generated around the dermis. These proteins play a crucial role in protecting cells from stress and aiding in the repair of damaged proteins. Additionally, collagen, a vital protein for maintaining skin elasticity and firmness, is formed. The result is the formation of new, healthy skin tissue, which appears smoother, more even, and youthful.

Non-Ablative Fractional Photothermolysis
Non-ablative fractional photothermolysis uses a picosecond laser with a micro spot size and short pulse width. This type of laser is highly effective for treating various skin concerns without causing significant damage to the surface of the skin. The picosecond laser delivers energy in ultra-short pulses, which minimizes the risk of side effects and allows for quicker recovery times.

  • Effective Treatment: Non-ablative lasers are ideal for addressing pigmentation issues, fine lines, and mild to moderate skin laxity. They work by creating micro-injuries beneath the skin's surface, stimulating collagen production and promoting cell turnover.
  • Minimal Downtime: Since the outer layer of the skin is left intact, patients can return to their normal activities almost immediately after treatment.
  • Targeted Results: The precision of the micro spot size allows for targeted treatment of specific problem areas, resulting in more uniform and natural-looking results.

Ablative Fractional Photothermolysis
Ablative fractional photothermolysis involves the use of CO2 and Er lasers. These lasers remove the outer layers of the skin to a greater extent than non-ablative lasers, making them suitable for more severe skin issues.

  • CO2 Laser: Known for its efficacy in resurfacing the skin, the CO2 laser is highly effective in treating deep wrinkles, severe sun damage, and prominent scars. It works by vaporizing the damaged skin cells, promoting the regeneration of new skin.
  • Er Laser: The Er laser is used for more precise ablation, making it suitable for delicate areas and finer lines. It offers controlled penetration, reducing the risk of thermal damage to surrounding tissues.

Dramatic Results: Ablative lasers produce more noticeable improvements in skin texture and tone. They are particularly effective for patients with significant photoaging and deep scars.
Longer Downtime: Due to the removal of the outer skin layers, patients may experience a longer recovery period, which includes redness, swelling, and peeling.

Conclusion
Fractional laser technology, whether non-ablative or ablative, offers versatile and effective solutions for various skin concerns. At SEA HEART GROUP, we provide state-of-the-art fractional laser equipment designed to deliver exceptional results with safety and precision. By understanding the theories and applications of fractional laser beams, professionals can make informed decisions about the best treatment options for their clients.

Fractional Handpiece Technology: MLA vs DOE



Characteristics of Depth of Focus and Small Spot Size in Dermatology

Understanding Depth of Focus and Small Spot Size
In the field of dermatology, the precision and efficacy of laser treatments are significantly influenced by the depth of focus (DOF) and the size of the laser spot. These characteristics are critical for achieving optimal results in skin treatments, ensuring both effectiveness and safety.

Long Depth of Focus (DOF)
The depth of focus refers to the distance over which the laser beam maintains a tight focus. A long DOF is particularly advantageous in dermatological applications for several reasons:
Consistency on Curved Surfaces: The human skin is not a flat surface; it has curves and contours. A long DOF ensures that the laser maintains a small, precise spot size even on these uneven surfaces. This is crucial for treating areas like the face, neck, and other curved regions effectively.
Enhanced Precision: With a long DOF, dermatologists can deliver laser energy accurately to the targeted area, minimizing the risk of unintended damage to surrounding tissues.

Small Spot Size
The spot size of a laser is another vital factor in dermatology. A small spot size offers several benefits:
High Energy Intensity: Smaller spot sizes allow the laser to concentrate its energy more intensely on a specific area. This high energy intensity is essential for targeting deep layers of the skin, such as the dermal layer, without affecting the superficial layers.
Controlled Thermal Damage: The ability to deliver high-intensity energy to the dermal layer with a small spot size means that treatments can be more effective while reducing thermal damage to the skin. This leads to quicker recovery times and less discomfort for patients.
Precision in Treatment: Small spot sizes enable dermatologists to treat very specific areas with great accuracy. This is especially important for procedures like removing pigmented lesions, treating fine lines, and performing intricate skin resurfacing.

Advantages in Dermatological Treatments
The combination of a long depth of focus and a small spot size offers several advantages in dermatological treatments:
Effective Targeting: The laser can effectively target specific areas, ensuring that the treatment is concentrated where it is needed most. This is particularly beneficial for treating conditions like acne scars, wrinkles, and pigmentation issues.
Minimized Side Effects: By focusing the energy precisely and minimizing the thermal spread, the risk of side effects such as redness, swelling, and scarring is significantly reduced.
Improved Patient Comfort: Patients experience less discomfort and downtime due to the controlled application of laser energy. The precision of the treatment allows for quicker healing and better overall results.

Conclusion
In dermatology, the characteristics of depth of focus and small spot size play a pivotal role in the success of laser treatments. At SEA HEART GROUP, we leverage advanced laser technologies to ensure our devices offer these critical features, providing dermatologists with the tools they need to deliver exceptional results. Our commitment to innovation and quality ensures that our laser systems are at the forefront of medical aesthetics.

Fractional Optics: Liquid MLA, Solid MLA (glass or Plastic), DOE Spot Patterns

Solid MLA and DOE make scatters and lower transmittance in physical characteristics.


Liquid MLA Measurement Result


Gaussian Fractional Spot Beam


Exploring the 300ps Nd Picosecond Laser Plasma Effect
Revolutionizing Dermatology with Picosecond Lasers
The advent of picosecond lasers has brought about a significant shift in dermatological treatments, particularly with the 300ps Nd
picosecond laser. This cutting-edge technology leverages ultra-high peak power to introduce new, non-ablative skin rejuvenation techniques that offer remarkable results without the drawbacks of traditional methods.
The Plasma Effect in Picosecond Lasers
One of the key innovations in picosecond laser technology is the plasma effect. When the ultra-high peak power of the 300ps Nd
laser is applied to the skin, it induces a plasma effect characterized by a rapid acceleration of electrons. This plasma effect triggers an inertial reaction within the skin, creating micro injuries that promote the body's natural healing processes.
Benefits of the Plasma Effect
Non-Ablative Skin Rejuvenation: Unlike traditional ablative lasers that remove layers of skin, the picosecond laser with its plasma effect allows for non-ablative treatments. This means that the surface of the skin remains intact while the laser works beneath the dermis to stimulate collagen production and rejuvenate the skin.
Enhanced Precision: The 300ps pulse duration ensures that the laser energy is delivered in ultra-short bursts, minimizing the risk of thermal damage to the surrounding tissues. This precision makes it possible to target specific skin concerns without affecting the overall skin integrity.
Effective Micro Hole Punching: The picosecond or short pulse nanosecond laser can punch micro holes under the dermis area. These micro injuries are small enough to avoid burning or discoloration, yet they are effective in stimulating the skin’s regenerative processes. This approach is ideal for treating fine lines, wrinkles, and other signs of aging.

Applications in New Dermatology Areas
The 300ps Nd picosecond laser’s plasma effect opens up new avenues in dermatology:
Non-Ablative Skin Rejuvenation: By harnessing the plasma effect, dermatologists can offer non-ablative skin rejuvenation treatments that deliver impressive results with minimal downtime. This technique is particularly beneficial for patients seeking anti-aging solutions without the need for invasive procedures.
Targeted Treatments: The ability to create precise micro injuries allows for highly targeted treatments. This is useful for addressing localized skin issues such as acne scars, pigmentation irregularities, and textural concerns.
Minimal Side Effects: The non-ablative nature of these treatments means that patients experience fewer side effects such as redness, swelling, and prolonged healing times. The precision and control provided by the picosecond laser ensure a comfortable and effective treatment experience.

Conclusion
The 300ps Nd picosecond laser with its plasma effect is a transformative technology in the field of dermatology. By offering non-ablative skin rejuvenation through precise and controlled micro injuries, this laser provides an effective solution for a variety of skin concerns. At SEA HEART GROUP, we are committed to advancing dermatological treatments with our innovative laser technologies.

Fractional Optics: Liquid MLA, Solid MLA(glass or plastic), DOE


Fractional Optics _ 755nm Alexandrite, 1550nm Er;Glass, 1950nm Thulium, 2940nm Er;YAG/YSGG, 10600um Co2 laser

Fractional optics have a different pitch and number of dots depending on the unique wavelength of each laser.

Handpiece with Fractional Optics and Adjustable Aperture
There is a scaler attached that allows you to adjust the number of dots and vary the sectional area.



Other Optics from Holmes

Medical _ Reflective Cover-Off Chamber for

Flash Lamp: It is easy to replace a damaged flash lamp without realignment.

Alexandrite Rod (Cavity Rod_no Rear and Output coupler mirror)

Long pulse SHG Crystal

DOE Design and Fabrication with

Lithography Process

Passive Q-Switched Seeder Laser
300ps and 500ps

Cell mirror for laser cavity for Top-Hat mode.

For more information about our range of fractional laser devices, visit SEA HEART GROUP.

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