From my experience the tracking of medical devices in the post market surveliance often comes consumer feedback itself, we have a team that dedicates themselves to addressing potential issues. The address concerns with the use of the device and often times, from my experience, its a user error, the instructions within labeling were misinterpreted and as a result they thought the device was broken. Bigger issues on the otherhand are handled with diligence with the help of post market surveliance

Chris