AMRO – Innovative Hand Orthoses Through 3D Printing

The collaborative research project AMRO (TBI-1-154-W-047) focuses on developing an innovative, individually adaptable hand orthosis for the treatment of rhizarthrosis (thumb carpometacarpal osteoarthritis). The aim is to create a slim, ergonomic and modular orthosis manufactured using advanced 3D printing technology. The orthosis is designed to provide targeted relief to the thumb carpometacarpal joint, improve wearing comfort and ultimately enhance patients’ quality of life.

At the heart of the project is a fully digitalised process chain – from patient-specific data acquisition and design to simulation and additive manufacturing. A modular system allows the orthosis to be individually customised and flexibly adjusted throughout the course of treatment. The goal is to develop a cost-effective and versatile solution suitable for a wide range of clinical applications.

As part of the project, the Leibniz Institute for Plasma Science and Technology (INP) is investigating the biocompatibility and safety of the 3D-printed materials used. The research focuses on skin compatibility, material ageing and potential microbiological risks. Among other aspects, the researchers are examining how treatment with cold atmospheric pressure plasma affects the properties of these materials. In addition, the materials are being tested for their resistance to everyday conditions such as sweat, water and abrasion, as well as their suitability for cleaning. These investigations aim to ensure that the orthosis can be used safely, comfortably and reliably over an extended period.

Funding
The project is funded under the ERDF Programme 2021–2027 by the European Regional Development Fund (ERDF) and the State of Mecklenburg-Western Pomerania, Germany.