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This application is a service of the Singapore Government.

Health Sciences Authority

Medical Devices


Medical Devices and You

Advertorial on Medical Devices. Published in The Straits Times, Lianhe Zaobao, Berita Harian and Tamil Murasu on 20 February 2013.


Understanding Medical Devices

Understanding Medical Devices File Size: (973 Kb) Published in The Consumer 2012 Issue 3, a Publication of the Consumers Association of Singapore.

Medical devices cover a wide spectrum of products - ranging from those that are found in hospitals and clinics such as x-ray machines and blood pressure machines, to those that are commonly available in pharmacies such as sterilised gauzes, thermometers, condoms and pregnancy kits.

Do you know that contact lenses with refractive power are also medical devices? How do you know if a product is a medical device and how can you use a medical device safely? Read on to find out more.


What is a Medical Device?

Medical devices are health products used on humans with a physical or mechanical effect on the body generally to diagnose, alleviate or treat a medical condition or are used to measure or monitor functions of the body. Products used for maintaining or supportive general well-being, such as body toning equipment, magnetic accessories and massagers, are NOT medical devices.


Classification of Medical Devices

Medical devices are classified into four risk classes – class A to D with class A being the lowest risk class. This classification is based on the intended purpose of the medical device, mode of operation and the user, and also the device technologies.

  Risk Level Device Examples
Class A Low Bandages/Wheelchairs/Face masks/Cotton balls
Class B Low – Mid Contact lenses/Dental crowns/Hearing aids
Class C Mid – High X-ray machines/Lung ventilators/Hip implants
Class D High Pacemakers/Heart stents/Breast implants


How Are Medical Devices Regulated in Singapore?

  • Medical devices must be registered with HSA to ensure they meet the regulatory requirements before they can be sold, unless they are non-sterile class A devices which are exempted
  • Manufacturers, importers and wholesalers are required to be licensed
  • Manufacturers, importers and wholesalers are required to report adverse events and product defects to HSA
  • Advertisements of medical devices must comply with the requirements stipulated under the law, including the prohibition of advertisements making reference to a specified list of serious medical conditions such as cancer and diabetes.


Are All Medical Devices Available in Singapore 100% Safe?

No device can be guaranteed to be completely free of risk. However, sound evidence underpins HSA’s decisions to ensure that these risks are minimized. There is also a post-market surveillance programme in place to monitor the safety of medical devices. Our adverse reaction monitoring programme draws on HSA’s network of local healthcare professionals and international regulatory partners to pick up signals of any health products that may be causing adverse reactions. This system of checks and controls has enabled HSA to initiate timely recalls of harmful and inferior quality medical devices.

If you suspect a medical device is causing you discomfort or making you unwell, please consult a doctor or dentist and report it to HSA.


Make Safe and Informed Decisions

How can you be a smart consumer? How do you know if a product is a medical device? How do you know it works properly as intended and is acceptably safe? How do you choose a medical device and what precautions should you take?


  • Ensure the device is suitable for your medical condition
  • Read the instructions provided carefully before purchasing and using the device
  • Always consult your doctor or dentist if you have any questions
  • Stop using the device immediately if you experience any discomfort or injury
  • Report any discomfort or injury to your doctor or dentist; no medical device is 100% safe


  • Forgo your prescribed medical treatment
  • Buy from dubious sources (e.g. internet, makeshift stalls etc.)
  • Buy medical devices with questionable claims and sensational promises such as:
    • Claims to cure a wide range of diseases (e.g. diabetes, hypertension and cancer)
    • No-risk, money-back guarantee
    • “Miracle cure”


How to Find Out if Your Medical Device is Registered in Singapore?

All medical devices registered with HSA are listed in the Singapore Medical Device Register (SMDR).


Where Can I Obtain More Information?

For more information on the regulation of medical devices in Singapore, you may refer to the HSA website: or email:


What Should I Do When Problems Arise?

If you suspect that the medical device you are using makes you unwell, see your doctor or dentist immediately.

You can also get in touch with HSA at Tel: 1800 2130 800 or Email: