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Optical-Waveguide Based Tactile Sensing for Surgical Instruments of Minimally Invasive Surgery.

Yue Li¹, Jian Hu¹, Danqian Cao¹

¹School of Biomedical Engineering & Imaging Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.

Frontiers in Robotics and AI

|February 7, 2022

Summary

This summary is machine-generated.

A novel optical waveguide sensor offers precise force detection for minimally invasive surgery (MIS) instruments. This technology addresses the challenge of sensing forces on 3D curved surfaces, enhancing surgical instrument capabilities.

Keywords:

3D surface minimally invasive surgical multi-point force measurement optical sensor tactile sensor

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Published on: May 11, 2014

Area of Science:

Biomedical Engineering
Surgical Technology
Sensor Technology

Background:

Minimally invasive surgery (MIS) lacks tactile force sensing, a critical need for clinicians.
Existing tactile sensors are unsuitable for the 3D curved surfaces of MIS instruments, preventing multi-point force detection.

Purpose of the Study:

To develop and evaluate a novel optical waveguide-based sensor for force detection on 3D curved surfaces of surgical instruments.
To address the research gap in tactile sensing for MIS instruments.

Main Methods:

A novel optical waveguide-based sensor prototype was designed and fabricated.
The sensor was designed to mimic the curved surface of dissection forceps.
Experimental evaluation included measuring static parameters and dynamic response characteristics.

Main Results:

The sensor prototype demonstrated a static hysteresis error of less than 3%.
Achieved a high resolution of 0.026 N and repeatability of less than 1.5%.
The sensor effectively measured force signal variations at a frequency of 12.5 Hz.

Conclusions:

The developed optical waveguide sensor is small, high-precision, and suitable for 3D curved surfaces.
This sensor design shows promise for enabling multi-point tactile sensing in MIS instruments.
The technology can significantly enhance the capabilities and safety of MIS procedures.