A machine for relieving the fatigue of fingers comprising a casing with an inner wall, a plurality of elastic fingertips disposed in a somewhat arcuate path along said inner wall, a stationary arcuate depression section along said inner wall, and a movable arcuate pressure member in said casing disposed to act on said fingertips so that they are compressed and allowed to expand alternately by a rhythmic reciprocating motion of said movable arcuate depression toward and away from said stationary arcuate depression.
A therapeutic continuous passive motion device for rehabilitating a user's hand that includes a prime mover which provides for reciprocating motion. The therapeutic passive motion device comprises first, second and third links which cause the fingers of a user's hand to be moved in a path substantially defined by an epicycloid curve. The device can be configured to flex only MCP or only DIP and PIP joints or all three sets of joints. The therapeutic passive motion device applies a perpendicular force to the fingers so as not to irritate the tissue surrounding the bones of the fingers receiving recuperative therapy.