| 摘要 |
<p>Aphasic individuals suffering paralysis of the arm and hand have a problem writing. The present invention is a writing prosthesis which solves that problem by allowing a person to use his or her shoulder muscles to control movement of a writing instrument. This writing prosthesis includes a base (10), which engages the forearm (12) and has a portion (14) extending beyond the distal ends of the fingers and a handrest (15) for the user"s palm and fingers. A pen or pencil (25) is secured to the extending portion (14) for writing contact with an adjacent writing surface, and the prosthesis is supported by a pair of wheels (20) and a spherical roller (29) for universal movement relative to the writing surface. The residual proximal muscles of the user control the prosthesis and cause the pen or pencil (25) to write on the writing surface. </p> |
