Stent out. Others attribute the noun "stent" to Jan F. Esser, a Dutch plastic surgeon who in 1916 used the word to describe a dental impression compound invented in 1856 by the English dentist Charles Stent (1807–1885), whom Esser employed to craft a form for facial reconstruction. The full account is described in the "Journal of the History of Dentistry". According to the author, from the use of Stent's compound as a support for facial tissues evolved the use of a stent to hold open various bodily structures. The first (self-expanding) "stents" used in medical practice in 1986 by Ulrich Sigwart
Al-Zahrawi techniques of cauterization and ligature. He also invented hooks with a double tip for use in surgery. Many of these instruments were never used before by any previous surgeons. His use of catgut for internal stitching is still practised in modern surgery. The catgut appears to be the only natural substance capable of dissolving and is acceptable by the body. An observation Al-Zahrawi discovered after his monkey ate the strings of his oud. Al-Zahrawi also invented the forceps for extracting a dead fetus, as illustrated in the "Al-Tasrif". Throughout the text, Al-Zahrawi uses an authoritative tone to declare his expertise