A designer's neoprene gloves with steel springs gave a Bach pianist his hands back

A Rest of World profile tells how João Carlos Martins, the 80-year-old Brazilian pianist and one of the world's most acclaimed interpreters of Bach, lost hand function over decades: focal dystonia as a teenager, severe repetitive strain injury, a 1966 arm-nerve injury from a fall in a Central Park soccer game, a 1996 Sofia mugging that left him partially paralyzed, and 24 surgeries, plus Botox and a neural stimulating device implanted in his cortex in 2012. He quit the piano for good in early 2019 after the 24th operation destroyed the dexterity in his left hand.

In July 2019, at a tour stop in Sumaré, upstate São Paulo, Martins opened his dressing room door to find local resident Ubiratan Bizarro, an industrial designer with no medical training, holding a box. Bizarro had watched Martins's final TV performance, binge-watched piano videos taking screenshots of his hand movements, and built a first prototype Martins called suitable 'for boxing, at best'. Invited to lunch, Bizarro studied which parts of the hands still worked — fingers could press down but not rise — and went back to YouTube to study car mechanics and aerodynamics.

Five months and six prototypes later came the answer: neoprene half-gloves with flexible steel rods connecting the fingers to the back of the hand. Whenever Martins pressed a key, each rod sprang the finger back into place. His medical team approved immediately — since his condition originates in the cortex, the gloves could not worsen it — and at Christmas 2019 Martins played a Chopin nocturne with all ten fingers for the first time in 22 years, sharing the video on Instagram where it drew floods of emotional comments.

Two decades of medicine treated the cortex; nobody had treated the finger's missing return spring.

A layman's study of Formula One suspension mechanics found the loop the surgeons missed.

The device is additive rather than corrective, so doctors could approve it without risk.

The problem was reframed from cure to workaround, which put it within a hobbyist's reach.

When the root cause is untreatable, engineer around it: a cheap mechanical workaround can beat decades of high-tech medicine if it targets the smallest broken physical loop.

Martins resumed playing and posting recitals online, reaching new audiences after US celebrities such as Rex Chapman shared the videos; his surgeon stressed the gloves are a workaround, not a cure.