The Computerized Pattern Generator (CPG) acts as the precision control center for fractional laser scanning systems. Its primary function is to govern the exact distribution of laser spots across the skin during ablative treatments. By utilizing pre-programmed sequences to create uniform pixelated shapes, such as diamonds or squares, the CPG ensures that the coverage area remains constant and strictly aligned with clinical requirements.
The CPG transforms raw laser output into a safe clinical tool by maintaining micrometer-level standards for ablation depth. Its most critical value lies in preventing thermal overlap, ensuring every pulse is consistent and significantly reducing the risk of patient burns.
Achieving Treatment Consistency
The fundamental advantage of a CPG is its ability to remove human error from the physical delivery of laser energy.
Uniform Pattern Distribution
The system does not distribute energy randomly. Instead, it utilizes pre-programmed sequences to generate precise geometric shapes.
Common patterns include diamonds or squares. This standardization ensures that the "pixelated" pattern on the skin is uniform every time the laser is fired.
Constant Ablation Ratios
By automating the pattern, the CPG maintains a constant ratio of the total ablation area.
This guarantees that the percentage of treated skin versus untreated skin is mathematically consistent, leading to reproducible clinical outcomes.
Ensuring Patient Safety
Beyond consistency, the CPG serves as a critical safety mechanism during high-energy procedures.
Preventing Thermal Overlap
Manual laser application carries the risk of treating the same area twice, leading to "hot spots."
The CPG eliminates this by precisely spacing distinct laser spots. This automation prevents overlapping laser pulses, which is the primary cause of unintentional burns and scarring.
Micrometer-Level Control
The system operates on preset micrometer-level standards.
This high-fidelity control regulates the specific depth of the ablation. It also manages the extent of residual thermal damage, keeping it within safe, predicted limits.
Operational Considerations
While the CPG provides superior control, it introduces specific operational dynamics that must be understood.
Dependence on Pre-sets
The system relies entirely on its pre-programmed sequences.
Operators are limited to the specific patterns (e.g., diamonds, squares) available in the software. You cannot deviate from these fixed geometries during a specific scanning cycle.
Rigid Standardization
The CPG prioritizes uniformity over flexibility in the moment.
Because the system enforces a constant ablation ratio, it ensures safety but requires the operator to select the correct parameters before firing, as the machine will execute the pattern exactly as defined.
Evaluating CPG Capabilities for Your Needs
To maximize the efficacy of a fractional laser system, you must leverage the specific strengths of the CPG.
- If your primary focus is patient safety: Rely on the CPG's automated spacing to prevent pulse overlap and eliminate the risk of thermal burns.
- If your primary focus is clinical reproducibility: Utilize the pre-programmed geometric patterns to ensure every treatment session maintains the exact same ablation ratio and depth.
Ultimately, the CPG acts as an automated safeguard, bridging the gap between raw laser power and refined, reproducible clinical results.
Summary Table:
| Feature | CPG Function & Benefit |
|---|---|
| Pattern Geometry | Creates uniform squares, diamonds, and shapes for precise coverage |
| Safety Mechanism | Eliminates thermal overlap to prevent accidental burns and scarring |
| Depth Control | Maintains micrometer-level standards for consistent tissue ablation |
| Treatment Ratio | Ensures mathematically constant ratios of treated vs. untreated skin |
| Operational Goal | Removes human error for reproducible clinical outcomes |
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At BELIS, we specialize in professional-grade medical aesthetic equipment designed exclusively for clinics and premium salons. Our advanced CO2 Fractional Laser systems utilize high-fidelity Computerized Pattern Generators to ensure the highest safety standards and clinical efficacy for your patients.
Beyond fractional lasers, our portfolio includes Diode Hair Removal, Nd:YAG, Pico lasers, HIFU, and Microneedle RF, alongside specialized body sculpting (EMSlim, Cryolipolysis) and skin care systems. Partner with us to bring micrometer-level accuracy and reliable results to your practice.
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References
- Caterina Longo, Pier Luca Bencini. Laser skin rejuvenation: epidermal changes and collagen remodeling evaluated by in vivo confocal microscopy. DOI: 10.1007/s10103-012-1145-9
This article is also based on technical information from Belislaser Knowledge Base .
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