Bioness

Bioness is intended to increase hand function, increase hand range of motion, reduce muscle spasms, prevent muscle loss, reeducate muscles, and increase circulation. The orthosis fits the hand and wrist and stimulates nerves and muscles in the hand and forearm. This helps to reeducate signals in the brain to stimulate weak or paralyzed muscles. With bioness, you can get back to activities that involve reaching, grasping, and opening/closing the hand.

https://bionessrehab.com/h200/