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Laser fiber cleaving techniques: effects on tip morphology and power output
Janna M Vassantachart1, Michelle Lightfoot, Alexander Yeo
1Department of Urology, Loma Linda University Medical Center , Loma Linda, California.
Journal of Endourology
|June 26, 2014
Summary
Properly cleaving reusable laser fibers is crucial for optimal function. The scribe pen cleaving tool demonstrated superior performance, maintaining high power output and ideal light dispersion compared to other methods.
Area of Science:
- Medical Devices
- Surgical Technology
- Laser Medicine
Background:
- Reusable laser fibers require precise cleaving for optimal functionality.
- The impact of cleaving tools on laser fiber performance is not fully understood.
Purpose of the Study:
- To quantify the effect of different cleaving tools on the power output of holmium laser fibers.
- To analyze morphologic changes in fiber tips using microscopy after cleaving.
Main Methods:
- Baseline power transmission of new 272 μm reusable laser fibers was established.
- Four cleaving techniques (scalpel, scribe pen, diamond wheel, scissors) were evaluated for power output and light dispersion.
- Fiber tips were examined using confocal and scanning electron microscopy.
Main Results:
- The scribe pen cleaving tool yielded the highest power output (97.1%), comparable to uncleaved fibers.
- Scalpel, diamond wheel, and suture scissors resulted in significantly lower power outputs (83.4%, 77.1%, 61.7%, respectively).
- Microscopy revealed the scribe pen maintained a smooth fiber core, while other methods caused core and cladding defects.
Conclusions:
- Cleaving techniques significantly influence the initial power transmission of reusable laser fibers.
- The scribe pen cleaving tool is recommended for its ability to maintain high and consistent power output.
