Abstract: A limb differential handle adapter is disclosed including a split coupling mount, a rotational joint, and a differential limb socket. The split coupling mount is configured to removably attach to a handle. The split coupling mount has an internal surface configured to contact the handle and an external surface. The rotational joint is configured to removably attach to and extend from the external surface of the split coupling mount. The rotational joint includes a socket, an interface disposed in the socket, and a shaft extending from the interface. The differential limb socket is configured to receive a differential limb and includes at least one replaceable modular insert proportioned to accommodate the differential limb. The differential limb socket is removably coupled to the rotation joint. A limb differential handle adapter kit is disclosed further including interchangeable components for the at least one replaceable modular insert and a plurality of shims.

Abstract: A prosthetic device is described for assisting amputees in touching, gripping, and repositioning various objects. In one example of the device of the present invention, the device has a first socket for receiving a portion of a residual arm below an elbow, and a second socket attached to and/or rotatable with respect to the first socket. The second socket may receive a portion of the residual arm above the elbow. Movement of the residual arm within the device may define movement of the device, such as, for example, gripping movement of a prosthetic hand of the device.

Abstract: A device for operating a vehicle involving handlebars using a residual arm. A user places a residual arm in a socket of the device, and the user may move the socket to translate force to a handlebar containment unit to cause movement of a handlebar. A handlebar channel of the handlebar containment unit receives and secures a portion of the handlebar.