https://www.theverge.com/2017/5/11/15624314/microsoft-project-emma-wearable-health-parkinsons-tremor-writing-vibrations
"It has small vibration motors that send signals to distract Lawton’s brain from trying to create the tremors."https://venturebeat.com/2017/05/10/watch-microsoft-demo-emma-watch-a-wearable-that-counters-parkinsons-tremors/
"The vibration pattern that works depends on the person, so the wearable is connected to a Windows 10 tablet with an app for controlling vibration speed. For Lawton, a rhythmic vibration is effective. Zhang notes that a more random rhythm may work better for other people."
스푼 1
https://www.psfk.com/2016/01/utensils-for-hand-tremors-patients-gyenno-technologies.html
스푼 2
https://www.medgadget.com/2016/12/liftware-level-utensil-system-helps-people-disabilities-eat-confidence.html