New Variety Village Electromechanical Elbow and Forearm for Juvenile Amputees

I. AL-TEMEN, PE*, M. MIFSUD, E ENCT,J. SPENCER AND M. MILNER, PHDToronto, Ontario


A new elbow/forearm was developed to address the need for an externally powered prosthesis for children. The device includes motor drive, bi-directional braking mechanisms, a solid-state power-bridge (which can also be used with the V-V62 series elbow), and the Otto Bock 6 volt interchangeable battery pack (757B8) which are housed in a plastic injection molded proximal forearm shell. A manufactured distal forearm shell allows trimming by the prosthetist for optimal length adjustment as well as access to electronic modules and connectors which can be located within this section. The distal shell is compatible with Variety Village and Otto Bock hands equipped with 40 mm wrist units. The wire harness has been routed through the proximal housing and exposed through the lamination ring, as well as providing passive humeral positioning. Adapter cables to Variety Village, Otto Bock, and UNB control systems are also available.

*Hugh MacMillan Medical Centre, 350 Rumsey Road, Toronto, Ontario, Canada M4G 1R8