We’re all familiar with machines that go beep. In TV medicine 'machines that go beep' play central roles, joggling for space around plot critical death beds or cosying up to the characters engaged in heroic struggles for life. EastEnders, Casualty, Holby have all had them.
Any number of health, medicine and science documentaries also feature machines that go beep so they aren’t confined only to the world of emergencies and drama. These machines are familiar medical and ‘tech’ metaphor.