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.
Critically, the article must not achieve its principal intended action in or on the human body by pharmacological, immunological, or metabolic means. If it does, it is regulated as a drug under the Drugs and Cosmetics Act 1940, not as a medical device under MDR 2017.
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.
Combination Products (Drug + Device)
When a device is integral to or inseparable from a drug, the regulatory classification depends on the primary intended action. If the drug is the primary mode of action, the product is regulated as a drug. If the device function is primary, it may be regulated as a device. CDSCO makes case-by-case determinations for combination products; manufacturers should seek a classification opinion before filing applications.