Flexible Substrate-based Optical Fiber Strain Sensor

Li, Tianliang; Qiao, Feng; Su, Yifei; Tan, Yuegang

doi:10.1109/icarm54641.2022.9959200

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…To counteract this, direct sensor placement has been explored at critical points such as the instrument's abdominal axis, wrist joints, and the tip's direct contact areas with tissue, enhancing force measurement precision as proximity to tissue increases 2,6,23,25 . This shift underlines the growing focus on embedding tactile sensors directly onto minimally invasive surgical (MIS) instruments' tips and joints for more accurate force detection 23,25 , utilizing electrical piezoresistive [2][3][4]6,17,[26][27][28] , piezoelectric 29,30 , capacitive 23,25,[31][32][33][34] and optical methods [35][36][37][38][39][40] . Kim et al 23,25 and Lee et al 31 developed capacitive-based force sensor, integrating them into surgical instruments with diameters ranging from 8 mm to 10 mm.…”

Section: Introductionmentioning

confidence: 99%

A Piezoresistive-based 3-axial MEMS Tactile Sensor and Its Integrated Surgical Forceps for Gastrointestinal Endoscopic Minimally Invasive Surgery

Liu,

Hou,

Gao

et al. 2024

Preprint

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In robotic-assisted surgery (RAS), traditional surgical instruments without sentient capability cannot perceive accurate operational forces during the task, and such drawbacks can be largely intensified when conducting sophisticated tasks using flexible and slender arms with small end-effectors, e.g., in gastrointestinal endoscopic surgery (GES). In this work, we propose a micro-electro-mechanical systems (MEMS) piezoresistive 3-axial tactile sensor for GES forceps, which can intuitively provide surgeons with online force feedback during robotic surgery. The fabrication process of MEMS enables the sensor chips to possess dimensions of miniaturization. The fully encapsulated tactile sensors can be effortlessly integrated into miniature GES forceps, which feature a slender diameter of just 3.5 mm and undergo meticulous calibration procedures least squares method. In experiments, the sensor's capability to accurately measure directional forces up to 1.2 N in Z axis was validated, demonstrating an average relative error of only 1.18% compared to the full-scale output. The results indicate that this tactile sensor can provide effective 3-axial force sensing during surgical operations, such as grasping and pulling, and in ex-vivo testing of the porcine stomach. Its characteristics of compact size, high precision, and integrability establish solid foundations for clinical application in the operating theatre.

show abstract

Section: Introductionmentioning

confidence: 99%

A Piezoresistive-based 3-axial MEMS Tactile Sensor and Its Integrated Surgical Forceps for Gastrointestinal Endoscopic Minimally Invasive Surgery

Liu,

Hou,

Gao

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

A piezoresistive-based 3-axial MEMS tactile sensor and integrated surgical forceps for gastrointestinal endoscopic minimally invasive surgery

Hou,

Gao,

Yang

et al. 2024

Microsyst Nanoeng

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In robotic-assisted surgery (RAS), traditional surgical instruments without sensing capability cannot perceive accurate operational forces during the task, and such drawbacks can be largely intensified when sophisticated tasks involving flexible and slender arms with small end-effectors, such as in gastrointestinal endoscopic surgery (GES). In this study, we propose a microelectromechanical system (MEMS) piezoresistive 3-axial tactile sensor for GES forceps, which can intuitively provide surgeons with online force feedback during robotic surgery. The MEMS fabrication process facilitates sensor chips with miniaturized dimensions. The fully encapsulated tactile sensors can be effortlessly integrated into miniature GES forceps, which feature a slender diameter of just 3.5 mm and undergo meticulous calibration procedures via the least squares method. Through experiments, the sensor’s ability to accurately measure directional forces up to 1.2 N in the Z axis was validated, demonstrating an average relative error of only 1.18% compared with the full-scale output. The results indicate that this tactile sensor can provide effective 3-axial force sensing during surgical operations, such as grasping and pulling, and in ex vivo testing with a porcine stomach. The compact size, high precision, and integrability of the sensor establish solid foundations for clinical application in the operating theater.

show abstract

Flexible Substrate-based Optical Fiber Strain Sensor

Cited by 2 publications

References 17 publications

A Piezoresistive-based 3-axial MEMS Tactile Sensor and Its Integrated Surgical Forceps for Gastrointestinal Endoscopic Minimally Invasive Surgery

A Piezoresistive-based 3-axial MEMS Tactile Sensor and Its Integrated Surgical Forceps for Gastrointestinal Endoscopic Minimally Invasive Surgery

A piezoresistive-based 3-axial MEMS tactile sensor and integrated surgical forceps for gastrointestinal endoscopic minimally invasive surgery

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