The moving-operation mode fundamentally changes how energy is delivered during local lipolysis by utilizing a continuous sliding motion rather than a static application. By keeping the transducer in constant motion across the treatment window, the device distributes acoustic energy evenly throughout the fat layer, preventing the dangerous heat buildup associated with fixed-point delivery.
By replacing static energy delivery with a dynamic sliding technique, this mode eliminates the risk of localized burns and ensures uniform heat absorption. The result is a consistent reduction of fat that creates smooth, natural-looking contour transitions.
The Mechanism of Dynamic Heating
Eliminating Fixed-Point Risks
Traditional ultrasound treatments often rely on fixed-point delivery, where the transducer stamps energy into a single spot. This can cause rapid, localized temperature spikes that increase the risk of surface burns.
The moving-operation mode mitigates this by strictly employing a sliding technique. Because the energy source is never stationary, heat is built up gradually and safely across the entire target area.
Continuous Acoustic Energy Distribution
This mode ensures that acoustic energy is not just focused on isolated pockets of fat. Instead, the continuous movement creates a uniform field of therapeutic heat.
This results in a homogenous treatment zone within the subcutaneous fat layer. It ensures that every part of the selected region receives the same level of exposure.
Aesthetic Outcomes and Targeted Application
Achieving Natural Contours
Uniformity in treatment directly translates to uniformity in results. The primary benefit of the moving mode is the creation of natural postoperative contour transitions.
By avoiding "spot" treatments, practitioners can prevent the irregular peaks and valleys that often occur when fat is removed unevenly. The treated area blends seamlessly with the surrounding tissue.
Specific Treatment Zones
This mode is particularly effective for delicate or smaller distinct areas, specifically the submental (under chin) and malar (cheek) regions.
In these highly visible areas, the precision of the sliding mode is critical for maintaining facial symmetry and smooth skin texture.
Understanding the Operational Trade-offs
Reliance on Operator Consistency
While the moving mode reduces the risk of burns, it introduces a variable regarding operator technique.
Because the device is manual, the uniformity of the treatment depends heavily on the consistency of the operator's hand speed.
Potential for Uneven Coverage
If the transducer is moved too quickly, the tissue may not reach the required therapeutic temperature for effective lipolysis.
Conversely, hovering too long in one area—despite the intention to move—can negate the safety benefits and reintroduce thermal risks.
Making the Right Choice for Your Goal
To maximize the benefits of non-invasive ultrasound, consider your specific clinical priorities:
- If your primary focus is patient safety: Rely on the moving-operation mode to significantly lower the risk of thermal injury and burns caused by static energy accumulation.
- If your primary focus is aesthetic refinement: Utilize the continuous sliding motion to ensure smooth blending and natural transitions, particularly in the submental and malar regions.
Consistency in movement is the key to balancing safety with effective contouring results.
Summary Table:
| Feature | Static (Fixed-Point) Mode | Moving-Operation Mode |
|---|---|---|
| Energy Delivery | Stationary pulse/stamp | Continuous sliding motion |
| Safety Profile | Higher risk of localized burns | Gradual heat buildup, minimal burn risk |
| Aesthetic Result | Potential for irregular peaks/valleys | Smooth, natural contour transitions |
| Key Target Areas | Large, deep fat pockets | Submental (chin) and Malar (cheek) |
| Control Factor | Device-timed pulses | Operator hand speed & consistency |
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References
- Histologic and clinical response to a new combined fractional CO2 laser treatment modality. DOI: 10.1016/j.jaad.2011.11.900
This article is also based on technical information from Belislaser Knowledge Base .
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