Prosthetics and assistive technology
AI milestones in prosthetics and assistive technology, part of medicine and health.
9 milestones
BrainGate researchers decode imagined handwriting from neural signals to enable high-speed text communication
In May 2021, Francis R. Willett and colleagues at Stanford University and Howard Hughes Medical Institute published results showing that a BrainGate2 intracortical electrode array could decode imagined handwriting movements in a paralysed person at 90 characters per minute with 94.1% raw accuracy, substantially exceeding prior neural-interface typing rates.
Ekso Bionics Receives FDA Clearance for EksoGT Powered Exoskeleton
Ekso Bionics developed a powered lower-limb exoskeleton enabling individuals with spinal cord injuries and stroke-related paralysis to stand and walk in clinical rehabilitation settings, receiving FDA clearance for its EksoGT device in 2016 after earlier clearances beginning in 2014.
BrainGate2 Participants Use Thought-Controlled Robotic Arm to Reach and Grasp
In May 2012, researchers in the BrainGate2 clinical trial, led by Leigh Hochberg and colleagues at Massachusetts General Hospital, Brown University, and affiliated institutions, demonstrated that two participants with tetraplegia could use neural signals decoded from a 96-electrode intracortical array to control a robotic arm and perform reach-and-grasp tasks without manual assistance.
REX Robotic Exoskeleton Enables Independent Walking for Paraplegics
In July 2010, REX Bionics of New Zealand publicly demonstrated the REX robotic exoskeleton, a self-supporting powered lower-limb device allowing paraplegic users to stand, walk, turn and navigate stairs without crutches, marking an early commercial step in AI-assisted assistive mobility.
Electronic Skin with Pressure Sensing Developed at University of Tokyo
In December 2008, Takao Someya and colleagues at the University of Tokyo published research in Nature Materials describing a flexible electronic skin using carbon nanotube composite films, enabling large-area pressure sensing suitable for robotic tactile feedback and wearable physiological monitoring.
I-LIMB: First Commercially Available Multi-Articulating Bionic Hand
In 2007, Touch Bionics of Livingston, Scotland launched the I-LIMB Hand, the first commercially available prosthetic hand with five individually powered, articulating fingers. Within a year roughly 200 patients had received the device, which used myoelectric signals from residual limb muscles to control grip patterns.
LOPES Exoskeleton Robot for Interactive Gait Rehabilitation
Researchers at the University of Twente, led by Jan F. Veneman and colleagues, developed LOPES (Lower Extremity Powered ExoSkeleton), a treadmill-based robotic exoskeleton for interactive gait rehabilitation following stroke, with the system described fully in a 2007 IEEE publication. The robot combined powered hip and knee actuation with impedance control to support or resist patient movement during walking.
Silicon Retina with Ganglion Cell Spiking Outputs as Neural Prosthesis
Around 2006, researchers developed a silicon retina implemented as an analogue VLSI chip that modelled four primary retinal ganglion cell types and generated 3,600 spiking outputs, designed as a neural prosthesis matched to the physical dimensions of the biological retina.
Rancho Arm Connected to Computer at Stanford Artificial Intelligence Laboratory
Around 1963, engineers at Rancho Los Amigos Hospital collaborated with Stanford Artificial Intelligence Laboratory to interface the six-degree-of-freedom Rancho Arm, an electrically powered prosthetic limb, with a computer, producing one of the earliest demonstrations of computer-controlled multi-jointed robotic manipulation.