Intended use

Overview

Every medical device starts from its intended use. Regulators classify a device by what its maker says it does and for whom, not by its technology, so the same electronics can be a regulated device in one product and an ordinary consumer item in another.

How it works

The intended use names the medical purpose, the patient population, the intended users, such as clinicians or lay people, and the use environment, such as a hospital ward or a home. Indications for use add the conditions or situations the device is meant for.

From it come the user needs, the classification in each market and the route to market. Design inputs, risk analysis, usability evaluation and clinical evidence are all judged against it, and labelling and claims must stay within it.

A change to the intended use, such as a new patient group or a new claim, can change the classification and the evidence the device needs, so it is controlled like any other design change.

Examples

• Continuous monitoring of heart rhythm in adults at home.
• Delivery of insulin by a patient using a wearable pump.
• Measurement of blood oxygen by nurses on a hospital ward.
• A new claim for children that needs a fresh classification and new evidence.

Why it matters

Product managers, regulatory affairs and systems engineers agree it first, at the start of the medical lifecycle. Chip suppliers meet it indirectly: their part has no intended use of its own, but the device maker's requirements on the chip follow from it.

It matters most to: Certification Program Manager, Product Line Manager, Systems Engineer

Common confusions

Not the same as Product requirements

Requirements say what the device must do to meet its purpose; the intended use states the purpose itself and who it serves.

Not the same as Indications for use

Indications name the conditions or situations the device is used for; the intended use is the wider statement of purpose, users and environment.

Related standards

• ISO 14971 (application of risk management to medical devices)
• IEC 62366-1 (application of usability engineering to medical devices)

Sources

1. 21 CFR 801.4 Meaning of intended uses (opens in a new tab), Legal Information Institute, Cornell Law School (US Code of Federal Regulations), 2026-11-10
2. Crafting an intended purpose in the context of software as a medical device (SaMD) (opens in a new tab), Medicines and Healthcare products Regulatory Agency (GOV.UK), 2026-11-10
3. Intended Purpose, Qualification, and Classification of Medical Devices Under the MDR and IVDR (opens in a new tab), VDE Health, 2026-11-10

Related terms

• MDR
• FDA
• ISO 14971
• IEC 62366-1

Where it appears on the Hub

Used on 8 pages of the Hub. In each group, the pages that mention it most come first.