proprietary EPR software

See the following -

Three More Hospitals in the United Kingdom Adopt Open Source EPR (EHR)

OpenMaxims, an electronic patient record (EPR) system developed in the United Kingdom (UK) and made available as open source software, is being adopted by three additional hospitals in the UK. The software solution is being implemented for the Blackpool Victoria Hospital, Clifton Hospital and Fleetwood Hospital, all three in England's northwest coast. The three hospitals form the Blackpool Teaching Hospitals NHS Foundation Trust. The Trust started implementing OpenMaxims in December.

UK's Blackpool Teaching Hospitals selects open source electronic patient records

Press Release | Blackpool Teaching Hospitals NHS Foundation Trust, openMAXIMS CIC, IMS MAXIMS | January 7, 2016

Blackpool Teaching Hospitals NHS Foundation Trust has selected an open source electronic patient record (EPR) called openMAXIMS from healthcare software provider IMS MAXIMS, to improve the recording and sharing of patient data across its hospital and community sites. The open source approach is expected to save the trust several million pounds in licence fees and future development costs, while also providing more control on how the software is developed in line with the hospital’s needs. Implementation started in December 2015 and once rolled out, Blackpool will become the third NHS trust to deploy the IMS MAXIMS open source EPR.