According to Office for Registration of Medicinal Products, Medical Devices and Biocidal Products, this field safety notices involved a device in Poland that was produced by Medtronic.
Field safety notices are communications sent out by medical device manufacturers or their representatives in relation to actions that they may be taking in relation to their product that is on the market. These are mainly for health workers, but also for users. They can include recalls and alerts.
Learn more about the data here