Each year, approximately 1,500 babies are born with upper limb deficiencies in the United States. Early fitting of a prosthesis plays an important role in physical and psychological development, but the need for frequent replacement and few commercially available options leaves this demographic without a cosmetic and functionally adequate prosthesis. We present a new 3D printed prosthesis design for infants with below the elbow limb deficiencies. This device improves on a previous design recently developed by students at the University of Toronto. Their design featured stainless steel wires for structure and support that provided function and cosmesis, but poor durability. Our novel prosthesis will use an embedded nickel titanium alloy wire skeleton to utilize its super plasticity, high tensile strength, and shape memory ability. Experiments will be conducted to evaluate durability and heat transformation capabilities of the new design.

Flexible 3D-Printed Infant Hand

Advisor: Dr. Matthew Leineweber

Authors: Eddy Jimenez, Kevin Wickramasekara, Hyunju Kim, Jonathan Ramos