The Design of the LN-4 Prosthetic Hand
Originally Ernie intended to design a functional prosthetic hand for children and adolescent land mine victims. Over time he developed a design for a low-cost, light, durable, functional prosthetic hand. He knew that this would help all who need a prosthetic hand and who could not afford the available alternatives.
On October 8th, 2009 the LN-4 Prosthetic Hand was added to the display in the Smithsonian Museum for modern technical innovations in prosthetics.