The Right Chemistry: Producing effective, safe urinary catheters can be a challenge

"It is as flexible as would be expected in a thing of the kind, and I imagine will readily comply with the turns of passage." That was a note sent by Benjamin Franklin to his brother John in 1752 along with his latest invention, a flexible urinary catheter. John suffered from blockage of his urethra by bladder stones, preventing him from emptying his bladder. The solution was to insert a catheter to drain the urine.   Read More