An overview and comparison of upper limb prosthetics

Riet, Drew van der; Stopforth, Riaan; Bright, Glen; Diegel, Olaf

doi:10.1109/afrcon.2013.6757590

Cited by 41 publications

(22 citation statements)

References 28 publications

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“…Low-cost solutions such as the Touch Hand (see Fig. 1(a)) are made available for approximately £500 in contrast to conventional solutions (up to £27k [12]).…”

Section: A Prostheses For the Developing Worldmentioning

confidence: 99%

Embroidered Electrodes for Control of Affordable Myoelectric Prostheses

Pitou

Shafti

et al. 2018

2018 IEEE International Conference on Robotics and Automation (ICRA)

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The low-cost manufacturing and maintenance of prostheses is of vital importance to their successful deployment in developing countries. Low-cost prosthesis actuation is generally achieved by combining pre-programmed control strategies, with surface-electromyographic measurements taken from the residual limb. In a standard setting, these signals are measured with disposable gel electrodes. However, this limit on electrode reuse requires that prosthesis users have a stable supply of electrodes. Alternatively, the textile electrodes sewn from conductive thread are studied in the context of hand gesture recognition to consider their future use with low-cost prostheses. In this paper, it is demonstrated that textile electrodes can be applied for gesture recognition. To do so, surface electromyography (sEMG) experiments are run in South Africa on three amputees where they were asked to perform gestures with their phantom limb (i.e., the missing limb segment). A gesture recognition method is implemented, and the classification accuracy with data recorded from textile electrodes is compared to that from gel electrodes. Further analysis examining the relationship between classifier performance and physiological parameters are performed. Results show that textile electrodes can be used to perform accurate gesture recognition, and are comparable to disposable gel electrodes. This demonstrates that low-cost sensory systems are not barrier to myoelectric control in developing countries.

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“…Low-cost solutions such as the Touch Hand (see Fig. 1(a)) are made available for approximately £500 in contrast to conventional solutions (up to £27k [12]).…”

Section: A Prostheses For the Developing Worldmentioning

confidence: 99%

Embroidered Electrodes for Control of Affordable Myoelectric Prostheses

Pitou

Shafti

et al. 2018

2018 IEEE International Conference on Robotics and Automation (ICRA)

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“…[10,11] The beginning of the development of a 3D-printed hand prosthesis for people who cannot afford an expensive commercial prosthesis resulted in the Robohand, as shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

3D-printed upper limb prostheses: a review

Kate

Smit

Breedveld

2017

Disability and Rehabilitation: Assistive Technology

272

182

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Goal: This paper aims to provide an overview with quantitative information of existing 3D-printed upper limb prostheses. We will identify the benefits and drawbacks of 3D-printed devices to enable improvement of current devices based on the demands of prostheses users. Methods: A review was performed using Scopus, Web of Science and websites related to 3D-printing. Quantitative information on the mechanical and kinematic specifications and 3D-printing technology used was extracted from the papers and websites. Results: The overview (58 devices) provides the general specifications, the mechanical and kinematic specifications of the devices and information regarding the 3D-printing technology used for hands. The overview shows prostheses for all different upper limb amputation levels with different types of control and a maximum material cost of $500. Conclusion: A large range of various prostheses have been 3D-printed, of which the majority are used by children. Evidence with respect to the user acceptance, functionality and durability of the 3D-printed hands is lacking. Contrary to what is often claimed, 3D-printing is not necessarily cheap, e.g., injection moulding can be cheaper. Conversely, 3D-printing provides a promising possibility for individualization, e.g., personalized socket, colour, shape and size, without the need for adjusting the production machine. ä IMPLICATIONS FOR REHABILITATIONUpper limb deficiency is a condition in which a part of the upper limb is missing as a result of a congenital limb deficiency of as a result of an amputation. A prosthetic hand can restore some of the functions of a missing limb and help the user in performing activities of daily living. Using 3D-printing technology is one of the solutions to manufacture hand prostheses. This overview provides information about the general, mechanical and kinematic specifications of all the devices and it provides the information about the 3D-printing technology used to print the hands. ARTICLE HISTORY

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“…Persons with upper limb amputation face significant limitations in performing activities of daily living. Myoelectric prosthesis, controlled by electrical signals extracted from residual limb muscles, provide a potentially feasible solution (Belter et al, 2013;van der Riet et al, 2013;Geethanjali, 2016), however, dissatisfaction and rejection of the prosthesis remains high, with some studies reporting up to 75% of myoelectric prosthesis users abandoning their device (Biddiss and Chau, 2007). Although there have been several advancements to improve dexterity and restore hand grasp patterns (Gallagher, 1986;Murray, 2004;Giummarra et al, 2008), myoelectric prostheses do not provide continuous feedback to allow real-time regulation of muscle contraction.…”

Section: Introductionmentioning

confidence: 99%

Mechanotactile Sensory Feedback Improves Embodiment of a Prosthetic Hand During Active Use

et al. 2020

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There have been several advancements in the field of myoelectric prostheses to improve dexterity and restore hand grasp patterns for persons with upper limb loss, including robust control strategies, novel sensory feedback, and multifunction prosthetic terminal devices. Although these advancements have shown to improve prosthesis performance, a key element that may further improve acceptance is often overlooked. Embodiment, which encompasses the feeling of owning, controlling and locating the device without the need to constantly look at it, has been shown to be affected by sensory feedback. However, the specific aspects of embodiment that are influenced are not clearly understood, particularly when a prosthesis is actively controlled. In this work, we used a sensorized simulated prosthesis in able-bodied participants to investigate the contribution of sensory feedback, active motor control, and the combination of both to the components of embodiment; using a common methodology in the literature, namely the rubber hand illusion (RHI). Our results indicate that (1) the sensorized simulated prosthesis may be embodied by able-bodied users in a similar fashion as prosthetic devices embodied by persons with upper limb amputation, and (2) mechanotactile sensory feedback might not only be useful for improving certain aspects of embodiment, i.e., ownership and location, but also may have a modulating effect on other aspects, namely sense of agency, when provided asynchronously during active motor control tasks. This work may allow us to further investigate and manipulate factors contributing to the complex phenomenon of embodiment in relation to active motor control of a device, enabling future study of more precise quantitative measures of embodiment that do not rely as much on subjective perception.

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An overview and comparison of upper limb prosthetics

Cited by 41 publications

References 28 publications

Embroidered Electrodes for Control of Affordable Myoelectric Prostheses

Embroidered Electrodes for Control of Affordable Myoelectric Prostheses

3D-printed upper limb prostheses: a review

Mechanotactile Sensory Feedback Improves Embodiment of a Prosthetic Hand During Active Use

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