See, back in the day, after the doctors finished lobotomizing you with a stick and applying the leeches, they'd jam one of these on your noggin to see which of your humours was out of balance...or some such quackery. Our friends at have some more examples of stuff you don't want on your head.

Need more for your medical equipment fix? Try some Medical Manequins, a brief history of the Dentist Chair, or some open air Operating Theaters.