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 ..
A metacarpal fracture is a type of hand fracture occurring in the bones which form the palm of the hand. These bones, located between the bones of the wrist and the bones of the fingers, are called the metacarpals.There are five metacarpal bones, each articulating with a digit of the hand.ennettâs fracture occurs at the base of the first metacarpal where it articulates with the carpal bones of the wrists. In Rolandoâs fracture, the same metacarpal base is fractured, but a Y shaped split results in a comminuted fracture, where the bone has fractured into multiple small pieces.