By the Medical 3D Parts editors, The Spool List · Published October 14, 2026
The short answer
It depends on what the model is made and sold for. The US, EU and UK definitions turn on intended purpose and claims. Our reading is that a model made and sold only for teaching or display, with no medical purpose claimed, is not sold as a medical device. A model used to diagnose or plan a patient's treatment is regulated. This is our reading, not legal advice, and we found no regulator that states it in those words.
What the definitions say
United States. A device includes an article "intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of disease", and the FDA tells manufacturers to start from the product's "intended use" [1].
European Union. Medical purposes include "diagnosis, prevention, monitoring, prediction, prognosis, treatment or alleviation of disease", and the intended purpose is what the manufacturer says on the label, instructions and sales material [2].
Great Britain. The MHRA says products with multiple, general purposes that may occasionally be used in a medical setting "are not normally medical devices, unless a manufacturer ascribes a specific medical purpose to such products" [3].
Where models become regulated
Stratasys, a printer maker, summarises FDA's position: models that "can affect/change the diagnosis" are Class II devices, and models marketed for diagnostic use must be made with FDA-cleared software [4]. An editorial in 3D Printing in Medicine proposes that some hospital-printed patient models, used only as a visual aid and "not intended to provide primary diagnosis nor used to make treatment decisions", should not be actively regulated by the FDA; that is one expert's proposal, not FDA policy, and it is not about teaching models [5]. The FDA's point-of-care discussion paper treats patient-specific models for surgical planning as device work [6].
Our reading
A model made from generic or open educational anatomy, sold for teaching or display, with no medical claim, is outside the purposes these definitions list.
The same model sold "for surgical planning" or "for diagnosis" would not be.
No regulator we found says the first point in so many words; the EU borderline manual has no entry for anatomical or training models [7]. Treat this as our reading, and ask a regulatory adviser for your own case.
That is why makers on this site print teaching, display, practice and prototype models only, and why we ask for an "education model" label on each one.
Why a biocompatible or medical resin bought by a maker does not make a printed part safe for the body: ISO 10993-1, validated processes and what resin makers say.
Rules are quoted as the sources state them, checked October 14, 2026. They differ by country and change: check the source before relying on them. This page is general information, not medical, dental or legal advice.
Drafted with AI assistance and checked against the sources above by the Medical 3D Parts editors. Medical 3D Parts is a guide published by The Spool List Ltd. Its buttons lead to The Spool List, our marketplace, which earns a commission from makers on completed orders. Makers are independent people and small workshops, not registered medical device manufacturers or dental laboratories.