A Study of Feasibility for a Design of a Metamorphic Artificial Hand

2018 ◽  
pp. 283-290
Author(s):  
F. J. Espinosa-Garcia ◽  
Giuseppe Carbone ◽  
M. Ceccarelli ◽  
D. Cafolla ◽  
M. Arias-Montiel ◽  
...  
Keyword(s):  
Artificial Hand

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.

Human-like reflex control for an artificial hand

Biosystems ◽  
2004 ◽  
Vol 76 (1-3) ◽  
pp. 65-74 ◽  
Author(s):  
Michele Folgheraiter ◽  
Giuseppina Gini
Keyword(s):  
Reflex Control ◽  
Artificial Hand

scholarly journals Subjective embodiment during the rubber hand illusion predicts severity of premonitory sensations and tics in Tourette Syndrome

2018 ◽  
Author(s):  
Charlotte Rae ◽  
Dennis Larsson ◽  
Jessica Eccles ◽  
Jamie Ward ◽  
HUgo Critchley
Keyword(s):  
Tourette Syndrome ◽  
Prediction Error ◽  
Tactile Stimulation ◽  
Self Control ◽  
Rubber Hand Illusion ◽  
Neural Pathways ◽  
Rubber Hand ◽  
Artificial Hand ◽  
Error Index ◽  
Proprioceptive Drift

The rubber hand illusion describes a sense of embodiment over a fake hand induced by synchronous visuo-tactile stimulation. In Tourette Syndrome, the expression of involuntary tics and preceding premonitory sensations is associated with the perturbation of subjective feelings of self-control and agency. We compared responses to induction of the Rubber Hand Illusion in 23 adults with TS and 22 matched controls. Both TS and control participants reported equivalent subjective embodiment of the artificial hand: feelings of ownership, location, and agency were greater during synchronous visuo-tactile stimulation, compared to asynchronous stimulation. However, individuals with TS did not manifest greater proprioceptive drift during synchronous relative to asynchronous stimulation, an objective marker of embodiment observed in controls. We computed an ‘embodiment prediction error’ index from the difference between subjective embodiment and objective proprioceptive drift. This embodiment prediction error correlated with severity of premonitory sensations according to the Premonitory Urge for Tics Scale (PUTS). Feelings of ownership over the artificial hand also correlated with premonitory sensation severity, and feelings of agency with tic severity (YGTSS). Together our findings suggest that the subjective strength of bodily ownership, as measured by the rubber hand illusion, contributes to susceptibility to the premonitory sensations that are a precipitating factor in tics. These results also suggest that somatosensory neural pathways underpinning visuo-tactile integration are likely altered in TS and may interact with other sensory and motor systems to engender premonitory sensations and tics.

scholarly journals house4hack: STIMULATING TECHNICAL AND PRACTICAL INNOVATION FOR SOCIAL GOOD

10.28945/2131 ◽  
2015 ◽  
Vol 4 ◽  
pp. 01
Author(s):  
Hossana Twinomurinzi ◽  
Schalk Heunis
Keyword(s):  
Social Enterprises ◽  
Life Strategy ◽  
Technical Equipment ◽  
Social Good ◽  
Non Profit ◽  
Working Space ◽  
Innovative Environment ◽  
Seed Funding ◽  
Technical Artifacts ◽  
Artificial Hand

John Burger, the founding member of house4hack, despite his passion for social good using practical innovation, was fully aware of the cost of getting people and organizations actively involved in social enterprises. The successful electrical and electronics engineer with a number of academic (PhD and Masters – cum laude) and corporate accolades (executive in a top firm) had already been at the top of the corporate ladder. But despite the success, his stronger desire to see South Africa become a net producer of IT and technical artifacts rather than a net importer had led him to rethink his entire life strategy. After deep discussions on the merits of free and open source software development with two friends, they decided to start house4hack as a non-profit organization. The main purpose of house4hack was to provide an innovative environment, a hacker space, where members could conceptualise and create innovative technical artifacts which are well suited for the South African and African environment. The emphasis of house4hack was on making available technical equipment and working space so that members had an environment in which they could experiment and develop technical artifacts. An example of a technical artefact that emerged from house4hack is Robohand. Robohand is a mechanically driven artificial hand printed using 3D technology. Robohand has depended exclusively on donations to develop and distribute artificial hands to people who cannot afford them, such as in the war torn areas of South Sudan. It was now three years since house4hack started. The hacker space was exciting, new ideas and opportunities kept emerging at the Tuesday meet ups where members and visitors networked and collaborated on new techniques or technology they had come across. But despite the liveliness, there were some key questions and critical decisions on John’s mind: 1. How do we get more people involved in creating artifacts? 2. Where do we find seed funding to support house4hack? 3. Are we serving Africa well enough with relevant artifacts? 4. Am I falling right back into the corporate work lifestyle trap?

Designing a 3D printed artificial hand

2022 ◽  
pp. 3-18
Author(s):  
Dilber Uzun Ozsahin ◽  
Majed Hejazi ◽  
Omar Sameer Adnan ◽  
Hamza Alloush ◽  
Ahmad Khabbaz ◽  
...  
Keyword(s):  
3D Printed ◽  
Artificial Hand
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