May 232018
This is a pretty slick system to restore functionality to someone who has had fingers cut off (leaving at least part of the first finger bone). No electronics or power systems are needed; all the strength in your fingers comes from muscles in your forearm, and *most* of the motion in your fingertips comes from a fairly simple and repeatable type of “folding” of the finger. So a purely mechanical system, if it’s clever enough, can reproduce *most* of the motion and strength of the hand.