The voluntary listing under the Medical Device Administrative Control System has been extended to cover medium-risk medical devices like insulin pens, hearing aids and electronic thermometers.

The Department of Health said the arrangement allows users and consumers to refer to the list when making purchases.

When the system was introduced last November, it only covered high-risk devices.

Traders are encouraged to apply to list medium-risk devices, which will be posted on the Medical Device Control Office website.

Guidance notes for listing class II/III devices specifying the detailed requirements has been posted on the office's website. Workshops will also be organised to familiarise traders with the system.