what has been the best invention for the hospital

Question: what has been the best invention for the hospital
- Keywords:
  hospital,
  invention
Asked by The exterminare to Eoin, Fiona, Ivor, Karl, Pattie on 6 Mar 2018.
- Eoin McEvoy answered on 6 Mar 2018:
  
  The MRI machine – it’s such an impressive invention, combining difficult physics with electronic engineering.

Question: what has been the best invention for the hospital