What is a Medical Device?
The statutory definition
Under Section 3(b)(iv) of the Drugs and Cosmetics Act 1940, as amended, a medical device includes any instrument, apparatus, appliance, implant, material, or other article — including software — intended by the manufacturer to be used for human beings for one or more specific purposes:
- Diagnosis, prevention, monitoring, treatment, or alleviation of disease;
- Diagnosis, monitoring, treatment, or alleviation of, or compensation for, an injury or disability;
- Investigation, replacement, or modification of the anatomy or of a physiological process; or
- Supporting or sustaining life.
The article must not achieve its principal intended action in or on the human body by pharmacological, immunological, or metabolic means — such articles are regulated as drugs, not devices.
Official source: Drugs and Cosmetics Act 1940, Section 3(b)
The intended use principle
Like most global frameworks, India's definition turns on intended use — how the manufacturer intends the product to be used, as expressed through:
- Labelling, IFU, and packaging;
- Promotional materials; and
- Statements by the manufacturer or its authorised representative.
The same physical article may or may not be a device depending on the claims made. A blood glucose meter with diagnostic claims is a medical device; the same hardware marketed purely as a "wellness tracker" without diagnostic claims may not be.
Common device categories
| Category | Examples |
|---|---|
| Diagnostic imaging | X-ray, ultrasound, MRI, ECG machines |
| In vitro diagnostics (IVDs) | Blood glucose meters, pregnancy test kits, COVID-19 antigen tests |
| Therapeutic devices | Infusion pumps, ventilators, dialysis machines |
| Surgical instruments | Scalpels, retractors, electrosurgical units |
| Implants | Orthopaedic implants, stents, cochlear implants, intraocular lenses |
| Software / SaMD | AI-based diagnostic software, clinical decision support tools |
| Consumables | Syringes, IV catheters, wound dressings, surgical gloves |
Notified devices vs all devices
A key feature of the Indian framework is that not all articles meeting the statutory definition are currently regulated as medical devices. CDSCO regulates devices that have been notified under Schedule I (medical devices) and Schedule II (IVDs) of the Medical Devices Rules 2017, with additional categories added through successive gazette notifications.
If a device type has not yet been notified, it is not subject to MDR 2017 licensing requirements — though this scope is expanding. See Notified Device Categories for the current list.
Exclusions
Articles that are not medical devices under MDR 2017 include:
- Articles that achieve their principal action through pharmacological, immunological, or metabolic means (these are drugs);
- Cosmetics and toiletries without medical claims;
- General wellness products without diagnostic or therapeutic claims;
- Human blood and blood products.
See What is Not a Medical Device? for a detailed breakdown.
Always verify the current notified device schedule at CDSCO. The scope of regulated devices in India is expanding.