Benjamin Franklin
Of Philadelphia; designed a flexible silver catheter for his brother in 1752 contested
- Dates
- No dates given in the film's sources
- Chapters
- VI. The Stone-Cutters
Contested
The flexible catheter is often credited to him. The editors of his papers point out that the type was already in use elsewhere and that Roncalli-Parolino had made one about 1720.
What the film says
-
Wrote to his brother John about a flexible catheter and had one made by a silversmith while he waited.
-
Often said to have invented the flexible catheter; he did not.
On the timeline
- 8 December 1752: Benjamin Franklin writes to his brother John about the flexible silver catheter he has had made. timeline