Classification of Medical Devices and IVDs In Sri Lanka
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Sri Lanka, being majorly driven by imported medical device products, offers a potential market to medical device manufacturers. The medical devices intended to be marketed in Sri Lanka must be registered with the National Medicines Regulatory Authority (NMRA). The registration of medical devices involves a series of activities, including medical device classification into appropriate risk class, obtaining sample import license, manufacturing license, testing of devices in accredited laboratories, and device registration followed by obtaining a commercial import license.

The classification of the medical device into the right risk class based on its intended purpose is the first and critical step in the whole registration process. The medical devices and IVDs are well differentiated and have separate classification rules in place. The National Medicines Regulatory Authority (NMRA), in August 2019 has released a draft guideline for the classification of a medical device in Sri Lanka. The new classification system is aligned with Medical Device Regulation (EU) 2017/745 (EU MDR) and In-Vitro Diagnostic Regulation 2017/746 (IVDR).

According to the revised classification, medical devices in Sri Lanka are classified as listed, I, IIa, IIb, and III Class in order of increasing associated risk.

  • Listed medical devices do not possess any risk; do not fall under any other class.
  • Class I devices are low-risk devices; requires the declaration of conformity for safety and effectiveness from the manufacturer.
  • Class IIa devices are medium risk devices, require certificate of conformity for safety and effectiveness provided by the Notified Bodies.
  • Class IIb and III devices are medium high-risk and high-risk devices respectively; undergo stringent Regulatory screening; require Certificate of conformity for safety and effectiveness issued by the accredited Notified Bodies.

There are 22 rules to determine the risk class of medical devices. The risk class of a device is determined based on its invasiveness and the duration of contact.

Classification of Non - invasive and Surgically Non-Invasive devices

The non-invasive devices pose low to moderate risk and fall into I, IIa, and IIb Classes -

Degree of Invasiveness

Intended Purpose / Use Condition

Device Class

Non-invasive

Do not touch the patient or contact only intact skin

Class I

Channeling or storing for eventual administration

Class I

In contact with injured skin (mechanical barrier – (absorb exudates)

Class I

Channeling or storing blood or other body liquids or for storing organs, and parts of organs or body cells

Class IIa

Channeling or storing for eventual administration connected to an active medical device

Class IIa

In contact with injured skin (mechanical barrier – (absorb exudates) intended to manage microenvironment of the wound

Class IIa

Used only for filtration, centrifugation, exchange of gas or heat

Class IIa

In contact with injured skin (mechanical barrier – (absorb exudates) intended for the wound which breach dermis and heal only secondary intent

Class IIb

Modify biological or chemical composition of blood, body-liquids, and other liquids intended for infusion

Class IIb

 

Classification of Surgically Invasive Devices

The risk of surgically invasive devices varies with the duration of contact with the human body. The devices intended to stay in contact for < 60 minutes are termed as transient use; between 60 minutes to 30 days are short term and > 30 days are long term. The risk of the invasive devices increases with the duration of use and falls into all the risk classes - I, IIa, IIb, III Classes.

Duration of Contact

Intended Purpose / Use Condition

Device Class

Transient use

Reusable surgical instrument

Class I

Others

Class IIa

Supply energy/ionizing radiation

Class IIb

Has biological effect- mainly absorbed

Class IIb

System to administer medicines

Class IIb

Diagnosis/control of defect of heart/circulatory system

Class III

Short Term

Others

Class IIa

Supply energy/ionizing radiation

Class IIb

Undergo chemical change in body/system to administer medicines (not teeth)

Class IIb

Has biological effect- mainly absorbed

Class III

Specifically to monitor/correct defect of heart/circulatory system – by contact

Class III

For use in direct contact with Central Nervous System

Class III

Long Term / Implantable devices

To be placed in teeth

Class IIa

Other devices

Class IIb

Used in direct contact with heart or central circulatory/nervous system

Class III

Biological effect or mainly absorbed

Class III

Undergo chemical change in body/system to administer medicines (not teeth)

Class III

 

Classification of Active Medical Devices

 

All other active devices

Class I

Therapeutic devices to administer or exchange energy

Class IIa

Administer/remove medicines and other substances to/from the body

Class IIa

For diagnosis/monitoring vital physiological processes

Class IIa

Administer/remove medicines and other substances to/from the body in a hazardous way

Class IIb

All active devices intended to emit ionizing radiation for therapeutic purposes, including devices that control or monitor such devices

Class IIb

Devices intended for In vivo imaging of the radiopharmaceuticals

Class IIb

Devices intended to allow direct diagnosis or monitoring of vital physiological processes

Class IIb

All active devices that are intended for controlling, monitoring or directly influencing the performance of active implantable devices

Class III

 

Classification of IVDs

 

Reagents/instruments for In vitro diagnostics

Class A

Physiological markers/metabolic markers

Class B

IVD medical devices that control without a quantitative or qualitative assigned value

Class B

IVD medical devices intended to be used for blood grouping/ tissue typing/self-testing

Class C

Intended for detecting the presence of sexually transmitted agent/infectious agent

Class C

Devices intended to be used to detect the presence of, or exposure to, a transmissible agent in blood, blood components, blood derivatives, cells, tissues or organs in order to assess their suitability for transfusion or transplantation, life-threatening disease

Class D

The medical device manufacturers wishing to import their devices to Sri Lanka must follow this classification method for a compliant market entry. Sri Lanka’s medical device classification system offers robust device registration process in terms of the safety and quality of the devices.

For more details on device classification in Sri Lanka and end-to-end compliance support, contact a regional Regulatory expertStay informed. Stay compliant.