Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis

Conventional prosthetic devices substitute lost human limbs with mechanical proxies to enable amputees perform daily chores. We present an alternative app roach that may replace or supp lement traditional upper-limb prostheses by utilizing and enhancing the functionality of the remaining healthy lim...

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Main Authors: Wu, Faye Y, Asada, Haruhiko
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering
Format: Article
Published: ASME International 2018
Online Access:http://hdl.handle.net/1721.1/118794
https://orcid.org/0000-0002-8716-1039
https://orcid.org/0000-0003-3155-6223
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author Wu, Faye Y
Asada, Haruhiko
author2 Massachusetts Institute of Technology. Department of Mechanical Engineering
author_facet Massachusetts Institute of Technology. Department of Mechanical Engineering
Wu, Faye Y
Asada, Haruhiko
author_sort Wu, Faye Y
collection MIT
description Conventional prosthetic devices substitute lost human limbs with mechanical proxies to enable amputees perform daily chores. We present an alternative app roach that may replace or supp lement traditional upper-limb prostheses by utilizing and enhancing the functionality of the remaining healthy limb with a new type of wrist-mounted robot: the Supernumerary Robotic (SR) Fingers. These SR Fingers are naturally and implicitly coordinated with the motion of the human fingers to provide assistance in a variety of prehensile tasks that are usually too difficult to carry out with a single hand, such as grasping a large/oddly shaped object or taking the lid off a jar. A novel control algorithm, termed "Bio-Artificial Synergies", is developed so the SR Fingers can share a work load and adapt to diverse task conditions just like the real fingers do. Through grasp experiments and data analysis, postural synergies were found for a seven-fingered hand comprised of two SR Fingers and five human fingers. The synergy-based control law was then extracted from the experimental data using Partial Least Squares Regression (PLSR) and tested on the SR Finger prototype on a number of common tasks to demonstrate the usefulness and effectiveness of this new class of prosthetic device. Topics: Prostheses, Robotics
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spelling mit-1721.1/1187942022-09-29T12:19:01Z Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis Wu, Faye Y Asada, Haruhiko Massachusetts Institute of Technology. Department of Mechanical Engineering Wu, Faye Y Asada, Haruhiko Conventional prosthetic devices substitute lost human limbs with mechanical proxies to enable amputees perform daily chores. We present an alternative app roach that may replace or supp lement traditional upper-limb prostheses by utilizing and enhancing the functionality of the remaining healthy limb with a new type of wrist-mounted robot: the Supernumerary Robotic (SR) Fingers. These SR Fingers are naturally and implicitly coordinated with the motion of the human fingers to provide assistance in a variety of prehensile tasks that are usually too difficult to carry out with a single hand, such as grasping a large/oddly shaped object or taking the lid off a jar. A novel control algorithm, termed "Bio-Artificial Synergies", is developed so the SR Fingers can share a work load and adapt to diverse task conditions just like the real fingers do. Through grasp experiments and data analysis, postural synergies were found for a seven-fingered hand comprised of two SR Fingers and five human fingers. The synergy-based control law was then extracted from the experimental data using Partial Least Squares Regression (PLSR) and tested on the SR Finger prototype on a number of common tasks to demonstrate the usefulness and effectiveness of this new class of prosthetic device. Topics: Prostheses, Robotics 2018-10-30T13:55:45Z 2018-10-30T13:55:45Z 2012-10 2018-10-23T15:50:02Z Article http://purl.org/eprint/type/ConferencePaper 978-0-7918-4619-3 http://hdl.handle.net/1721.1/118794 Wu, Faye, and Harry Asada. “Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis.” Volume 2: Dynamic Modeling and Diagnostics in Biomedical Systems; Dynamics and Control of Wind Energy Systems; Vehicle Energy Management Optimization; Energy Storage, Optimization; Transportation and Grid Applications; Estimation and Identification Methods, Tracking, Detection, Alternative Propulsion Systems; Ground and Space Vehicle Dynamics; Intelligent Transportation Systems and Control; Energy Harvesting; Modeling and Control for Thermo-Fluid Applications, IC Engines, Manufacturing, 22-24 October, 2012, San Antonio, Texas, ASME, 2014, p. V002T16A009. © 2014 by ASME https://orcid.org/0000-0002-8716-1039 https://orcid.org/0000-0003-3155-6223 http://dx.doi.org/10.1115/DSCC2014-6017 Volume 2: Dynamic Modeling and Diagnostics in Biomedical Systems; Dynamics and Control of Wind Energy Systems; Vehicle Energy Management Optimization; Energy Storage, Optimization; Transportation and Grid Applications; Estimation and Identification Methods, Tracking, Detection, Alternative Propulsion Systems; Ground and Space Vehicle Dynamics; Intelligent Transportation Systems and Control; Energy Harvesting; Modeling and Control for Thermo-Fluid Applications, IC Engines, Manufacturing Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf ASME International ASME
spellingShingle Wu, Faye Y
Asada, Haruhiko
Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis
title Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis
title_full Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis
title_fullStr Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis
title_full_unstemmed Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis
title_short Supernumerary Robotic Fingers: An Alternative Upper-Limb Prosthesis
title_sort supernumerary robotic fingers an alternative upper limb prosthesis
url http://hdl.handle.net/1721.1/118794
https://orcid.org/0000-0002-8716-1039
https://orcid.org/0000-0003-3155-6223
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