Transradial prostheses: Trends in development of hardware and control systems

Abstract

Background Prosthesis is a wearable device that intends to provide the functionality and/or appearance of a missing body part. In the case of trans‐radial prostheses, the wearer or the trans‐radial amputee is fitted with an artificial wrist and a hand that is either mechanically or electro‐mechanically operated. Main aim is to enable the wearer to perform activities of daily living with minimal external assistance. Methods In this review paper, hardware systems of state‐of‐the‐art trans‐radial prostheses have been briefly discussed. Focus is to provide an insight on the latest technologies employed in development of its mechanical systems: terminal devices, artificial wrist joints, and body attachments. In that context, latest hardware designs on terminal devices for grasping motion are presented as it is the primary function of trans‐radial prostheses. Hardware designs of prosthetic wrists and body attachments are also reviewed. Finally, latest trends and future directions on design of trans‐radial prostheses are explored and presented. Conclusions Size, shape, weight, durability, appearance, and functionality are the key factors that need to be considered when developing a trans‐radial prosthesis. Moreover, the current developments are moving closer to a human upper limb. However, the availability of these devices is minimum due to high‐tech involved and the high cost, which necessitates further development trans‐radial prostheses.

Hand Bionic Score: a clinical follow-up study of severe hand injuries and development of a recommendation score to supply bionic prosthesis

“…However, clinical follow-up in patients with disseminated intravascular coagulopathy (DIC) and consecutive amputation followed by bionic prosthetic supply show sufficient to moderate results in function and quality of life [24]. The main reported reasons for non-application of prostheses are weight of the prosthesis, signal transmission disorders based on scarring of the skin, and repeated technical failures [24,25].…”

A survey on bio-signal analysis for human-robot interaction

“…On chosen degree of freedom (DOF) shafts for the Prosthesis, balanced control technology also offers a position, velocity, or force control, with a motion property adjusted proportionally to the intensity of muscle contractions [47]. Although direct scaling control of prosthetic fingers is more natural than grip selecting, the user may find it more challenging it to modify the position of the fingers for the work because there are usually only a few control sites available [48]. Deep learning (DL) has only recently been used in sEMG research, even though pattern recognition approaches have been used for decades.…”

Pressure and Angle Sensors with Optical Fiber for Instrumentation of the PrHand Hand Prosthesis

“…The principal cause of upper limb amputations is related to traumatism (77.0 %), followed by congenital disorders (8.9 %), cancer (8.2 %), and vascular diseases (5.8 %); the last 0.1 % is by unknowledge causes IOP Publishing doi:10.1088/1742-6596/2407/1/012010 2 [1]. Around 59,000 amputations were performed in Brazil, by the year 2018 [2], and, the year later it was estimated that more than 528,000 people have some kind of disabilities in their hands and legs in Colombia [3].…”