To evaluate the sharpness of the sapphire hair transplant knife to ensure its effectiveness and safety during hair transplant procedures.
2.Testing Method
A standardized puncture force testing method was employed using a digital push-pull gauge to measure the force required for the knife blade to penetrate a specific material (e.g., artificial skin).
3.Testing Equipment
Digital push-pull gauge
Artificial skin samples (1 mm thickness)
Sapphire hair transplant knife (Model: C-50)
4.Testing Procedure
5.Testing Data
| Test Number | Maximum Puncture Force (N) | Remarks |
| 1 | 0.34 | First test |
| 2 | 0.32 | Second test |
| 3 | 0.31 | Third test |
| 4 | 0.32 | Fourth test |
| 5 | 0.30 | Fifth test |
| 6 | 0.33 | Sixth test |
| Average | 0.32 |
6.Results Analysis
The testing data indicates that the sapphire hair transplant knife has an average maximum puncture force of 0.32 N when penetrating the artificial skin sample. This value is below the industry standard (typically around 0.4 N), indicating that the knife exhibits excellent sharpness.
The ultra-fine blade and high-precision cutting process contribute to minimizing tissue damage, enhancing surgical accuracy, and improving patient recovery times.
7.Conclusion
The sapphire hair transplant knife has passed the sharpness testing, demonstrating that its sharpness meets or exceeds industry standards, making it suitable for hair transplant surgeries and effectively improving surgical outcomes and patient satisfaction.
8. References
- Chen, Y., & Wang, X. (2020). “Evaluation of Surgical Blade Sharpness in Hair Transplant Procedures.” *Journal of Cosmetic Surgery*, 15(4), 245-250.
- American National Standards Institute. (2019). “Standard Test Method for Measuring the Sharpness of Surgical Blades.” ANSI/AAMI ST79.
- Manufacturer’s specifications for digital push-pull gauge.
