Not every new invention has to be complicated.
Based on everyday experience, Boise, Idaho-based urologist Dr. Autumn Bridger identified a simple but persistent problem at her practice: Her patients found exams and medical procedures uncomfortable.
In particular, they found cold, metal foot stirrups unwelcoming, which some doctors go so far as to cover with a sock or even an oven mitt.
Over dinner one night in 2016, Bridger happened to mention the problem to her …