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Towards Automatic Robotic Calibration System for Flexible Needles with FBG Sensors
Kefan Song1, Dimitri A Lezcano2, Ge Sun2
1Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA.
Summary
This study introduces a semi-automatic robotic system for calibrating fiber Bragg grating (FBG) sensorized needles used in prostate biopsies. The system achieves similar accuracy to manual methods while reducing calibration time and potential errors.
Area of Science:
- Biomedical Engineering
- Sensing Technology
Background:
- Fiber Bragg grating (FBG)-sensorized needles are researched for prostate biopsies.
- Current FBG needle calibration is time-consuming and prone to human error.
Purpose of the Study:
- To develop a semi-automatic robotic system for FBG needle calibration.
- To improve the efficiency and accuracy of the calibration process.
Main Methods:
- Development of a semi-automatic robotic system for FBG needle calibration.
- Comparison of robotic calibration results with manual calibration.
Main Results:
- The robotic system calibrates FBG needles with accuracy comparable to experienced manual operators.
- The robotic system significantly reduces the time required for needle calibration.
Conclusions:
- The developed robotic system offers an efficient and accurate alternative for FBG needle calibration.
- This advancement can streamline the prostate biopsy procedure by reducing calibration-related bottlenecks.

