3D Prosthetic Hands – e-Nable Nepal

3D printed functional prostheses for children with upper limb deficiency.

We use fused deposition modelling (FDM) technology, in which poly lactic acid (PLA) and Polyethylene terephthalate glycol (PETG) are used as a printing material (filament).

After taking few simple measurements of the residual and normal limb the size is entered into the associated computer aided design (CAD) file to scale the device, which customises it for each specific user. The design then is printed by 3D printer using colorful plastic filaments (PETG/ PLA) layer by layer.

These 3D printed prosthetic hands the unlimbted arm (elbow powered) and phoenix hand (wrist powered) are fabricated, molded and manually assembled into a functioning prosthesis. Simple mechanism like forward bend (flexion) of the wrist or elbow will make all of the digits bend and creates a basic grasping motion, and unbending (extension) the wrist or elbow will let the hand move back into the open position. Fabricating and assembling this device will take around 5 days after which the recipients are called upon for trial fitting. At this time the recipient is taught about its using methods, taking care and basic maintenance. Prostheses is then handed over once the recipient gets knowledge and confidence about it. This custom made body-powered device are easy fitting, light weight, colourful and attractive to children.