While the complexity of medical devices was increasing, they were not necessarily becoming more expensive. When the Inselspital purchased the first Dornier kidney stone crusher in 1985, it cost a whole 5 million Swiss francs – converted to today's purchasing power – around 8 million. In addition, a separate building had to be erected. Since 2015, a successor device, the "Boston Lithoclast Master", has been in operation in the urology department. It is not only much smaller, but also easier to handle.