Tehran University of Medical Sciences Journal of Medical Ethics and History of Medicine 2008-0387 2 0 2009 11 22 48 48 Flamur Tartari Service of Urology, UHC Mother Theresa, Rr. Dibrës 371 Tirana, Albania. Stiliano Buzo Department of Biochemistry, Faculty of Medicine, Rr. Dibrës 371, Tirana, Albania. Gentian Vyshka Section of Human Physiology, Faculty of Medicine, Rr. Dibrës 371, Tirana, Albania. 2015 10 04 2021 01 19 The apparatus invented by Dr. Luigj Benusi in 1943, in Tirana, was a practical application of the Kowarsky technique and Ambard laws, helping in determining blood urea levels and very important to a variety of diseases, mainly kidney disorders. The apparatus was invented and prepared from very simple laboratory materials, such as glasses, test tubes, corks and volumetric cylinders. Technologically, it was based upon the determination of blood urea through hypobromite, and, among the advantages of the apparatus of Benusi, were its extreme simplicity, the smaller amount of blood needed for producing results (2 milliliters), as well as an easiest way to clean up and to manage the apparatus from a practical point of everyday use.    https://jmehm.tums.ac.ir/index.php/jmehm/article/view/48 https://jmehm.tums.ac.ir/index.php/jmehm/article/download/48/33