Flexy Hand and Flexy Hand 2. WRIST DRIVEN: User must have a functional wrist and enough palm to push against the device to force the fingers closed when wrist is bent. The Flexy Hand 2, designed by Steve Wood, is a wearable prosthetic device made using flexible hinges. Using flexible filament for the hinges means that no elastic cords are necessary to return the fingers to their outstretched position. The Flexy Hand 2 is shared under the Attribution â Non-Commercial â Share Alike license.
Metacarpals. The metacarpals are long bones within the hand that are connected to the carpals, or wrist bones, and to the phalanges, or finger bones. The metacarpals together are referred to as the metacarpus ..The tops of the metacarpals form the knuckles where they join to the wrist.etacarpals. The metacarpals are long bones within the hand that are connected to the carpals, or wrist bones, and to the phalanges, or finger bones. The metacarpals together are referred to as the metacarpus ..
Metacarpal Fracture. By Scott Kaar, M.D. A metacarpal fracture is a fracture (break) of the tubular bones within the palm (metacarpals). They classically occur in the small finger metacarpal bone in boxers or athletes of other pugilistic sports or activities.ach of the fingers (digits) has a corresponding metacarpal that links the wrist bones to the phalanges (individual bones of the fingers). There are flexor tendons on the palm side of the metacarpals that act to flex, or bend the fingers as in making a fist.