TIL that in 1929, determined to prove his hypothesis, Werner Frossman tricked a nurse, inserted a catheter through his own arm, and walked with the inserted tube to an x-ray lab to photograph his discovery, thereby inventing cardiac catheterization and winning a Nobel Prize for it later.

Read more: https://www.the-hospitalist.org/hospitalist/article/123249/first-catheterization

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  1. It’s amazing how many scientists/inventors or whatever you want to call them, have used themselves as test subjects to show their proof of principal.

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