The 14-needle stainless steel cartridge is a specialized microneedling component featuring solid needles with a fine diameter of 0.25mm. Designed for integration with automated devices, these cartridges support high-speed operation ranging from 6,300 to 7,700 rotations per minute (RPM), ensuring rapid and precise skin penetration.
The specific configuration of 14 solid needles operating at high RPMs provides a critical balance: it generates sufficient micro-channels for treatment efficacy while significantly minimizing tissue traction and drag.
Technical Specifications and Design
Solid Needle Construction
The cartridge utilizes solid stainless steel needles. This material choice ensures the structural integrity required for repeated skin penetration without bending or degrading during a session.
Precise Needle Gauge
Each of the 14 needles features a diameter of 0.25mm. This gauge is specifically calibrated to create effective micro-channels without causing unnecessary trauma to the surrounding tissue.
High-Velocity Performance
The system is engineered for speed, operating between 6,300 and 7,700 RPM. This high rotational frequency is essential for the automated mechanism to function smoothly and consistently.
Operational and Clinical Benefits
Minimized Tissue Traction
One of the most significant benefits of this configuration is the reduction of tissue traction. Because the needles insert and withdraw at such high speeds, the device does not "drag" or pull the skin, which is a common issue with slower mechanical devices.
Optimal Channel Density
The 14-needle array is designed to generate an adequate number of micro-channels per unit area. This ensures thorough treatment coverage in a single pass, reducing the need for repetitive strokes over the same area.
Operational Efficiency
The combination of the multi-needle design and high RPMs improves overall operational efficiency. Practitioners can cover treatment areas more quickly while maintaining consistent channel depth and spacing.
Operational Considerations
The Importance of Hand Speed
While high RPMs (up to 7,700) reduce drag, they require the practitioner to maintain a consistent gliding speed. Moving the handpiece too slowly while the device runs at top speed can result in excessive micro-channeling in a focused area.
Optimizing Procedural Outcomes
To maximize the utility of 14-needle stainless steel cartridges, align your technique with the device's capabilities:
- If your primary focus is procedural efficiency: Leverage the upper range of the RPM settings (near 7,700) to maximize the rate of penetration and reduce total treatment time.
- If your primary focus is patient comfort: Rely on the high-speed operation to eliminate the "tugging" sensation caused by tissue traction.
The synergy between the 0.25mm gauge and high-velocity automation makes this cartridge a robust tool for consistent, efficient facial microneedling.
Summary Table:
| Feature | Specification | Clinical Benefit |
|---|---|---|
| Needle Count | 14 Solid Needles | Optimal micro-channel density per pass |
| Material | Stainless Steel | High structural integrity & durability |
| Needle Diameter | 0.25mm Gauge | Effective penetration with minimal trauma |
| Operating Speed | 6,300 - 7,700 RPM | Eliminates skin drag & tissue traction |
| Design Type | Automated Integration | Enhanced procedural efficiency & speed |
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References
- Mona Alqam, Jeffrey M. Kenkel. Efficacy and tolerability of a microneedling device for treating wrinkles on the face. DOI: 10.1111/jocd.14985
This article is also based on technical information from Belislaser Knowledge Base .
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