Surgical suture father of medicine, Hippocrates, described suture techniques, as did the later Roman Aulus Cornelius Celsus. The 2nd-century Roman physician Galen described gut sutures. In the 10th century, the catgut suture along with the surgery needle were developed by Abulcasis. The catgut suture was similar to that of strings for violins, guitar, and tennis racquet and it involved harvesting sheep intestines. Joseph Lister endorsed the routine sterilization of all suture threads. He first attempted sterilization with the 1860s "carbolic catgut," and chromic catgut followed two decades later. Sterile catgut was finally achieved in 1906 with iodine treatment. The next great leap
Experimental musical instrument the length of the long strings and rubbing them with rosined hands and producing longitudinal vibrations. Bradford Reed invented the pencilina, a custom-made string instrument in the 1980s. It is a double-neck 3rd bridge guitar that is similar in construction to two long, thin zithers connected by a stand. Wedged over and under the strings in each neck is an adjustable rod, a wooden drum stick for the guitar strings and a metal rod for the bass strings. In addition, there are four bells. The pencilina is played by striking its strings and bells with sticks. The strings may also