Bending stiffness variability between a deployable robotic laser osteotome and its insertion device

Varying device stiffness on purpose can provide safety and performance improvements in interventions involving flexible minimal-invasive surgical robotic devices. For example, when flexible robotic devices are used for inserting minimal-invasive tools along curved paths into the knee joint for arthr...

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Main Authors: Tomooka Yukiko, Rauter Georg, Gerig Nicolas, Takeda Ryo, Cattin Philippe, Eugster Manuela
Format: Article
Language:English
Published: De Gruyter 2022-07-01
Series:Current Directions in Biomedical Engineering
Subjects:
Online Access:https://doi.org/10.1515/cdbme-2022-0035
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author Tomooka Yukiko
Rauter Georg
Gerig Nicolas
Takeda Ryo
Cattin Philippe
Eugster Manuela
author_facet Tomooka Yukiko
Rauter Georg
Gerig Nicolas
Takeda Ryo
Cattin Philippe
Eugster Manuela
author_sort Tomooka Yukiko
collection DOAJ
description Varying device stiffness on purpose can provide safety and performance improvements in interventions involving flexible minimal-invasive surgical robotic devices. For example, when flexible robotic devices are used for inserting minimal-invasive tools along curved paths into the knee joint for arthroscopy, a high device stiffness can allow precise path following where desirable. In contrast, when the minimalinvasive flexible device has reached its desired location inside the patient’s body, decoupling the surgical tool (end-effector) from the flexible robotic insertion device can be beneficial in avoiding transferring disturbances such as vibrations to the robot-patient interaction. In this paper, we investigate bending stiffness variability in dependence on the length of a flexible supply channel. Our experiments have shown that bending stiffness in fact decreases with the length of the supply channel but the highest stiffness connection is not sufficiently rigid and we plan to implement a more rigid connection to allow precise path following during insertion.
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spelling doaj.art-cdfc89397eef4ee59398649955830b2f2022-12-22T04:29:08ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042022-07-018113814110.1515/cdbme-2022-0035Bending stiffness variability between a deployable robotic laser osteotome and its insertion deviceTomooka Yukiko0Rauter Georg1Gerig Nicolas2Takeda Ryo3Cattin Philippe4Eugster Manuela5BIROMED-Lab, Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14, 4123Allschwil, SwitzerlandBIROMED-Lab, Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14, 4123Allschwil, SwitzerlandBIROMED-Lab, Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14, 4123Allschwil, SwitzerlandLaboratory of Deformation Control, Division of Mechanical and Aerospace Engineering, Faculty of Engineering, Hokkaido University,Hokkaido, JapanCIAN, Department of Biomedical Engineering, University of Basel,Allschwil, SwitzerlandBIROMED-Lab, Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14, 4123Allschwil, SwitzerlandVarying device stiffness on purpose can provide safety and performance improvements in interventions involving flexible minimal-invasive surgical robotic devices. For example, when flexible robotic devices are used for inserting minimal-invasive tools along curved paths into the knee joint for arthroscopy, a high device stiffness can allow precise path following where desirable. In contrast, when the minimalinvasive flexible device has reached its desired location inside the patient’s body, decoupling the surgical tool (end-effector) from the flexible robotic insertion device can be beneficial in avoiding transferring disturbances such as vibrations to the robot-patient interaction. In this paper, we investigate bending stiffness variability in dependence on the length of a flexible supply channel. Our experiments have shown that bending stiffness in fact decreases with the length of the supply channel but the highest stiffness connection is not sufficiently rigid and we plan to implement a more rigid connection to allow precise path following during insertion.https://doi.org/10.1515/cdbme-2022-0035robotic surgerysupply channelvariable stiffnessparallel robotrobotic endoscopeminimally invasive surgerylaser osteotomy
spellingShingle Tomooka Yukiko
Rauter Georg
Gerig Nicolas
Takeda Ryo
Cattin Philippe
Eugster Manuela
Bending stiffness variability between a deployable robotic laser osteotome and its insertion device
Current Directions in Biomedical Engineering
robotic surgery
supply channel
variable stiffness
parallel robot
robotic endoscope
minimally invasive surgery
laser osteotomy
title Bending stiffness variability between a deployable robotic laser osteotome and its insertion device
title_full Bending stiffness variability between a deployable robotic laser osteotome and its insertion device
title_fullStr Bending stiffness variability between a deployable robotic laser osteotome and its insertion device
title_full_unstemmed Bending stiffness variability between a deployable robotic laser osteotome and its insertion device
title_short Bending stiffness variability between a deployable robotic laser osteotome and its insertion device
title_sort bending stiffness variability between a deployable robotic laser osteotome and its insertion device
topic robotic surgery
supply channel
variable stiffness
parallel robot
robotic endoscope
minimally invasive surgery
laser osteotomy
url https://doi.org/10.1515/cdbme-2022-0035
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