In medicine, a catheter is a narrow tube which is made from medical grade materials and used for a large number of purposes in diagnosis and management of diseases. The first flexible catheter was invented in America in the 18th century by Benjamin Franklin, when he designed the flexible tube for his brother who was suffering from urinary bladder stones in 1752. The catheter he designed was made of metal segments hinged together with a wire. In his footnote of the letter in Volume IV of Papers of Benjamin Franklin (1959), Benjamin Franklin has credited Francesco Roncelli-Pardino in 1720 as the inventor of flexible catheter.
For urinary catheterization, a latex or polyurethane, or silicone made tube is used in modern day. It is inserted into the urinary bladder via urethra. It is used for draining urine from bladder, injecting liquids for diagnosis or treatment of various medical conditions of the bladder. It may be done by physician or nurse or even self. Catheterization may be permanent or intermittent.
Types of urinary catheter
Disclaimer: The information given in this write-up is purely for educating the reader. It is not meant to be a substitute for any advice from a medical expert.