Radii Devices Ltd

Radii Devices Ltd is a UK-based software company founded in 2020 that develops riiForm, a web-based clinical platform for prosthetic and orthotic (P&O) design and fitting. riiForm leverages machine learning and historical patient outcome data to provide evidence-based socket fit recommendations, streamlining the P&O fitting workflow from initial scan through final delivery. The platform supports multiple device types including below-knee prosthetics, above-knee prosthetics (coming soon), and ankle-foot orthoses (AFOs). Key features include automated fit suggestions based on scan analysis and historical data, intuitive digital modification tools, longitudinal patient comparison with limb shape evolution tracking, and compatibility with both carving and 3D printing workflows. The system operates on an episode-of-care pricing model rather than per-export fees, covering the entire fitting journey including multiple check sockets. Radii is ISO 13485:2016 certified for software design and production, FDA-registered as a Medical Device Establishment, and holds CE marking and UKCA marking for Class I medical device classification under UK MDR 2002 and EU MDR 2017/745. The company has completed two clinical studies—a feasibility study (IRAS 313408) and a safety usability evaluation (IRAS 317901)—demonstrating rigorous validation of the Adaptive Templates Fitting System. The team includes award-winning researchers, mechanical engineers, software developers, and human-centered design specialists with over ten years of clinical experience. Radii serves prosthetic clinics globally and has partnered with major organizations including HP Additive Manufacturing Solutions, PVA Med, the U.S. Department of Veterans Affairs, and DASA (Disabled People's Association Singapore).