Catgut suture used on a kit, or fiddle). Misinterpretation of the word kit as referring to a young cat led to the use of the term catgut. Surgical gut is in fact made from the submucosa of sheep intestine or the serosa of bovine intestine and is approximately 90% collagen. Perhaps another possible explanation of the name is the combination of the words cattle and gut. B Braun Medical AG, a German Multi National company first industrialized catgut suture and Catgut is a brand registered with B Braun. Catgut Chrome (B Braun) suture is a variant treated with chromic acid salts. This
Claviharp Claviharp The claviharp is a 19th-century musical instrument that combined a harp with a keyboard. J. C. Dietz invented the instrument in 1813 CE. His grandfather was one of the first upright piano manufacturers. Struck by what he saw as difficulties and defects of the harp, in 1810, he built an "instrument à cordes pincées à clavier", which connected a keyboard to the harp strings. He made the instrument to address limitations of the harp—susceptibility of catgut strings to atmospheric change, inconsistency of sound as finger motion varies, limited diatonic scale (without pedals), and lack of dampers. The claviharp's keyboard