IIT-Madras develops artificial limbs using 3D printing


Researchers at the Indian Institute of Technology (IIT) in Madras are developing high-tech artificial limbs using 3D printing technology from finite element analysis, according to a statement.

Three-dimensional printing is an additive manufacturing process that creates a physical object from a digital design and the process works by depositing thin layers of material in the form of liquid or powdered plastic, metal or cement, and then deposited into it. merging the layers together.

The mathematical concept uses Finite Element Analysis (FEA), which is a technique used to arrive at critical parameters of a physical system numerically.

The prosthetic feet of researchers at IIT-M are typically designed through trial and error experiments, making the process expensive, time consuming, and labor intensive. This alternative approach to digital design should help reap rich rewards, the researchers say.

The study takes into account the geometric, material and contact non-linearities of a prosthetic foot. A range of biomechanical parameters, including center of pressure (CoP) trajectory, ankle range of motion (AROM), ankle flexion moment (AFM), and rollover shape (ROS), have been studied during the manufacture of the artificial limb.