There are no change in business in the UK with the current Brexit Deal in place (Agreement on the withdrawal of the United Kingdom of Great Britain and Northern Ireland from the European Union and the European Atomic Energy Community). Now the UK and the EU have the chance to agree on a trade agreement by December 31! Whether this will happen remains to be seen. Therefore, a hard Brexit is still a possible scenario and may occur on December 31. Until then it means business as usual with the UK.
We shall revisit this issue in due time because we are expecting a specific Medical Devices law for the UK shortly in order to prepare for all possible scenarios.
Here is the link to the MDSS News & Views Brexit history.