Suitability of the Openly Accessible 3D Printed Prosthetic Hands for War-Wounded Children

Cabibihan, John-John; Alkhatib, Farah; Mudassir, Mohammed; Lambert, Laurent A.; Al–Kwifi, Osama Sam; Diab, Khaled; Mahdi, E.

doi:10.3389/frobt.2020.594196

Cited by 16 publications

(9 citation statements)

References 45 publications

(32 reference statements)

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“…This technology is not just limited to the manufacturing of surgical equipment, 3D printing can be applied to other aspects of medicine including prosthetic and anatomic modelling. Hand prosthesis has been modelled for warwounded children for as low as USD 19 [17]. With technological advancement, the ability to customise individual prosthesis for patients can lead to improved postoperative outcomes and reduced complication rates.…”

Section: Accessibility In Lmicmentioning

confidence: 99%

3D printing: can it make surgery more accessible?

et al. 2021

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The advancement of 3-Dimensional (3D) printing technology has made the design and production of items increasingly ubiquitous amongst the public. This technology is increasingly being used widely in various medical fields. With its increasing cost efficiency and accessibility, it is the author's perspective that 3D technology can improve accessibility to surgical procedures in low-and mediumincome countries (LMIC) by providing proceduralists with the basic equipment required to perform routine operations.

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Section: Accessibility In Lmicmentioning

confidence: 99%

3D printing: can it make surgery more accessible?

et al. 2021

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“…3D printing has emerged as a cutting-edge approach to prosthetic arm development, enabling lightweight, durable, and robust designs by utilizing lattice or honeycomb infill patterns that maintain mechanical strength [8][9][10][11] . Despite these advancements, a dearth of studies assessing performance and user issues surrounding upper-extremity prostheses has led to a developmental lag.…”

Section: Introductionmentioning

confidence: 99%

An Ultra-Low-Cost, Pressure Sensing and Haptic Feedback-Enabled Transradial Prosthesis

Bell

2023

Preprint

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Transradial prostheses frequently lack intuitivity and responsiveness, constraining their suitability for everyday use. The high prevalence of below-the-elbow amputations in low- and middle-income countries underscores the need for affordable and functional prostheses. This study presents WeArm, a low-cost prosthesis that is lightweight, flexible, and provides haptic and pressure feedback. Our innovative design merges soft and articulated robotics, incorporating a 3D-printed, five-finger polyarticulated joint system made of rigid and flexible resin. Thin-film pressure sensors regulate soft inflatable haptic actuators, relaying a sense of touch to the amputee. We developed a gradient convolution kernel compensation algorithm (gCKC) for detecting and decoding amputee motor units. The gCKC, coupled with a convolutional neural network demonstrated an ROC of 90.38 ± 0.05%, a sensitivity of 0.83 (IQR 0.16), and a specificity of 0.89 (IQR 0.18) in decoding sEMG signals and accurately actuating the prosthetic arm, determined using sixfold cross-validation. The complete system cost $379.89 to produce. WeArm introduces a novel, cost-effective, and efficient prosthetic solution with the potential to enhance amputees’ quality of life and mobility.

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“…An important factor regarding prosthetics is their cost, as prices range from around 30,000 to 80,000 dollars [8]. Computer-aided design, additive manufacturing, and open-source resources play an essential role, with 3D printing being a potential option for cost reduction, as well as allowing control over factors such as weight and customization [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Myoelectric Prosthesis Using Sensor Fusion Between Electromyography and Pulse Oximetry Signals

Torres,

Espinoza,

Asanza

et al. 2023

JESA

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Approximately 215,156 people in Ecuador grapple with physical disabilities, of whom nearly half fall within the 30 to 49% disability range, and a considerable number lack limbs. Moreover, there's been a surge in amputation cases, a trend linked to the increasing diabetes prevalence estimated at around 537 million cases by 2021 as per the International Diabetes Federation (IDF). While prosthetic solutions exist, they might incur high costs or offer constrained movement, even when more affordable. Thus, an alternative is proposed: a myoelectric upper limb prosthesis. This prosthesis would be maneuvered through electromyography and pulse oximetry signals, leveraging artificial intelligence methods. Employing a multi-layer neural network model, a structure comprising an input layer, four hidden layers, and an output layer, yields an impressive 93% prediction accuracy for user movement intentions. For AI model training, data from EMG and PPG sensors were recorded and scrutinized, leading to the condensation of classes from four to three. The model was embedded within an ESP32 C3 DevKit-M1 development board, and opensource blueprints facilitated the prosthesis's creation, complemented by supplementary components for electronics integration. The model attains a 93% precision in predicting classes, while the prosthesis's endurance spans approximately three hours and costs $295, equipped to handle diverse lightweight objects.

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Suitability of the Openly Accessible 3D Printed Prosthetic Hands for War-Wounded Children

Cited by 16 publications

References 45 publications

3D printing: can it make surgery more accessible?

3D printing: can it make surgery more accessible?

An Ultra-Low-Cost, Pressure Sensing and Haptic Feedback-Enabled Transradial Prosthesis

Myoelectric Prosthesis Using Sensor Fusion Between Electromyography and Pulse Oximetry Signals

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