Auxeat is a temporary auxetic prosthesis for transradial amputations, designed to restore autonomy during mealtime by reducing dependence on external assistance and the physical effort required to eat.

Auxeat was developed within the Product Development Laboratory of Politecnico di Milano as a low-tech device that is quick to produce and easy to use. It is designed to fill the gap between the initial rehabilitation phase and the fitting of a permanent prosthesis. The project addresses the need to perform everyday gestures such as grasping cutlery and bringing it to the mouth, actions that are often complex and frustrating for those living with a transradial amputation.

The main goal is to increase autonomy and improve the quality of life of amputees during meals, while also reducing the caregiving burden for clinics and support staff. Auxeat introduces an intuitive interaction that reproduces natural movement, prioritizing comfort, accessibility, usability, and the potential for customization.

At the heart of the project lies the use of auxetic patterns, structures capable of deforming in an unconventional way to recreate missing motion and adapt to the user’s gesture. The prosthesis integrates an adjustable bracelet, a support component made of auxetic material, and a coupling system for an interchangeable, hygienic, and easily replaceable utensil.

The system consists of three main elements: a bracelet, a support, and an auxetic module, all connected to a base that holds the utensil. Materials used include food-safe PETG, stainless steel for the utensils, silicone for skin-contact areas, and neodymium magnets for quick closure, combining comfort, safety, and practicality.

Auxeat is designed for 3D printing using FDM technology, chosen to ensure speed, low cost, and the possibility of iteration and customization in form and color. With a target price of around €70 and reduced production costs, the device is ideal for clinical and rehabilitative contexts that require temporary yet high-performing solutions.