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. 

The Smithsonian

On October 8th, 2009 the LN-4 Prosthetic Hand was added to the display in the Smithsonian Museum for modern technical innovations in prosthetics.

It makes a strong addition to our collections and our efforts to documetn the history of prosthetics in America and international entrepreneurial activism to assist people with disabilities.
— Katherine Ott, PHD, Smithsonian Institute

In February 2011,  Bacolod, Philippines. The 11 year old girl in this video did finally get an LN-4 hand.  We are developing a better "above elbow" connection device and always exploring better ways to fit the hand.

This video is a great example of how the fitting process works. Many members of Rotary have participated in the fitting of hands in the past. 

This video shows the results acheived with LN-4 hands and the immediate joy people have at being able to do essential tasks better.  This (fabulous) video was produced by Karmina Landicho, a student at CSU Fullerton.