I repair medical equipment and maintain device and record compliance in accordance with various federal regulatory bodies. Recently this means more IT type work than in the past, but it isn't yet a significant percentage of my duties. This includes upgrades, whether mandatory or optional, and recalls. The level of integration of systems in medicine doesn't yet encompass fluid power applied for therapy, but it's coming down the line. Sometimes I save lives, but it's rare. You'd be surprised what interesting types of monitoring systems are adapted to patient monitoring.
In the past I was an electrical assembler and then an engineering technician. I had to fabricate parts and equipment to modify larger industrial processing equipment, and during that one I had to learn to run machine tools to fabricate custom parts. I can also weld, but only stick/arc and MIG.