Conductive silicon based sEMG sensor for myoelectric control of prosthetic hands: Structure design

2017 ◽  
Author(s):  
Yinlai Jiang ◽  
Yuta Murai ◽  
Taihei Kuwahara ◽  
Shunta Togo ◽  
Yoshiko Yabuki ◽  
...  
Keyword(s):  
Myoelectric Control ◽  
Structure Design ◽  
Prosthetic Hands ◽  
Silicon Based

scholarly journals Recent Advances in Myoelectric Control for Finger Prostheses for Multiple Finger Loss

2021 ◽  
Vol 11 (10) ◽  
pp. 4464
Author(s):  
Viritpon Srimaneepong ◽  
Artak Heboyan ◽  
Azeem Ul Yaqin Syed ◽  
Hai Anh Trinh ◽  
Pokpong Amornvit ◽  
...  
Keyword(s):  
Web Of Science ◽  
Myoelectric Control ◽  
Original Research ◽  
Prosthetic Hand ◽  
Precise Control ◽  
Prosthetic Hands ◽  
Prosthesis Retention ◽  
Finger Prosthesis ◽  
Artificial Hand

The loss of one or multiple fingers can lead to psychological problems as well as functional impairment. Various options exist for replacement and restoration after hand or finger loss. Prosthetic hand or finger prostheses improve esthetic outcomes and the quality of life for patients. Myoelectrically controlled hand prostheses have been used to attempt to produce different movements. The available articles (original research articles and review articles) on myoelectrically controlled finger/hand prostheses from January 1922 to February 2021 in English were reviewed using MEDLINE/PubMed, Web of Science, and ScienceDirect resources. The articles were searched using the keywords “finger/hand loss”, “finger prosthesis”, “myoelectric control”, and “prostheses” and relevant articles were selected. Myoelectric or electromyography (EMG) signals are read by myoelectrodes and the signals are amplified, from which the muscle’s naturally generated electricity can be measured. The control of the myoelectric (prosthetic) hands or fingers is important for artificial hand or finger movement; however, the precise control of prosthetic hands or fingers remains a problem. Rehabilitation after multiple finger loss is challenging. Implants in finger prostheses after multiple finger loss offer better finger prosthesis retention. This article presents an overview of myoelectric control regarding finger prosthesis for patients with finger implants following multiple finger loss.

Light trapping enhancement via structure design

2020 ◽  
Vol 34 (06) ◽  
pp. 2050040
Author(s):  
Minyu Bai ◽  
Huan Liu ◽  
Fei Xie ◽  
Jijie Zhao ◽  
Weiguo Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Trapping ◽  
Hybrid Structure ◽  
Structure Design ◽  
Light Reflection ◽  
Optimal Size ◽  
Two Dimensional ◽  
Pillar Array ◽  
Hybrid Devices ◽  
Silicon Based

Light trapping is of great importance in many applications including photodetectors and solar cells. Silicon-based structures and hybrid devices were designed and studied to reduce reflection, thus enhance light trapping. The typical pillar array was analyzed concerning the pillar radius and distance between pillars first. The result showed that light reflection could be reduced from the range of 0.35–0.45 to the range of 0–0.3 with wavelength from 400 to 700 nm. What should be noted is that optimal size for light trapping changed when wavelength varied. Furthermore, hybrid structure was designed to increase light trapping. The results showed that the structure with random quantum dots (QDs) covering pillar array coated with two-dimensional (2D) material is an effective way to confine the light reflection under 0.1, thus promoting light trapping.

A hybrid auricular control system: direct, simultaneous, and proportional myoelectric control of two degrees of freedom in prosthetic hands

2018 ◽  
Vol 15 (5) ◽  
pp. 056028 ◽  
Author(s):  
Leonie Schmalfuss ◽  
Janne Hahne ◽  
Dario Farina ◽  
Manuel Hewitt ◽  
Andreas Kogut ◽  
...  
Keyword(s):  
Control System ◽  
Degrees Of Freedom ◽  
Myoelectric Control ◽  
Two Degrees Of Freedom ◽  
Prosthetic Hands

An Underactuated Prosthetic Hand with Coupled Metacarpophalangeal Joints

2018 ◽  
Vol 22 (5) ◽  
pp. 674-682 ◽  
Author(s):  
Ang Ke ◽  
Jian Huang ◽  
Jiping He ◽  
◽  
Keyword(s):  
Control System ◽  
Structural Design ◽  
Myoelectric Control ◽  
Structure Design ◽  
Force Sensing ◽  
Prosthetic Hand ◽  
Metacarpophalangeal Joints ◽  
Fingertip Force ◽  
Control Paradigm ◽  
3D Printed

The design of a comfortable and functional prosthetic hand is still a challenge. This paper presents the design of a tendon-driven, 3D-printed, underactuated prosthetic hand. An improved structural design was developed to make the hand more flexible. Three fingers are equipped with abduction freedom at the metacarpophalangeal joints (MCP) to ensure natural enveloping for both cylinder and sphere-like objects. A force-sensing resistor (FSR) is adopted to measure the fingertip force of each finger. Experiments show that this type of structure design provides the hand with excellent dexterity, as the added abduction ensures natural enveloping grasp gestures for both cylinder and sphere-like objects. Moreover, a myoelectric control paradigm is implemented in the control system to demonstrate the feasibility.

One-Handed Wearable sEMG Sensor for Myoelectric Control of Prosthetic Hands

2016 ◽  
pp. 105-109
Author(s):  
Yin-lai Jiang ◽  
Shintaro Sakoda ◽  
Masami Togane ◽  
Soichiro Morishita ◽  
Hiroshi Yokoi
Keyword(s):  
Myoelectric Control ◽  
Prosthetic Hands

Synergy-Driven Myoelectric Control for EMG-Based Prosthetic Manipulation: A Case Study

2014 ◽  
Vol 11 (02) ◽  
pp. 1450013 ◽  
Author(s):  
Shunchong Li ◽  
Jiayuan He ◽  
Xinjun Sheng ◽  
Honghai Liu ◽  
Xiangyang Zhu
Keyword(s):  
Principal Component Analysis ◽  
Control Strategy ◽  
Hand Movement ◽  
Principal Component ◽  
Component Analysis ◽  
Myoelectric Control ◽  
Prosthetic Hand ◽  
Prosthetic Hands ◽  
Simultaneous Control

The paper proposes a synergy-based myoelectric control strategy for prosthetic hands. Synergy is first reviewed in the context of hand movement, then postural synergy-based proportional and simultaneous control has been introduced to prosthetic manipulation via the principal component analysis (PCA) framework. Experiments have been comprehensively carried out on lab-developed prosthetic hand called SJU-5 to evaluate the proposed method. It is evident that the synergy driven myoelectric control achieves the targeted objectives and performs well on the SJU-5 prosthetic hand.

Sign in / Sign up

Export Citation Format

Share Document