 He was also known for being the first surgeon to use catgut ligatures, sutures, and rubber drains, and developing an aortic tourniquet.He also introduced a diluted spray of carbolic acid combined with its surgical use, however he abandoned the carbolic acid sprays in the late 1890s after he saw it provided no beneficial change in the outcomes of the surgeries performed with the carbolic acid spray.The only reported reactions were minor symptoms that did not affect the surgical outcome as a whole, like coughing, irritation of the eye, and minor tissue damage among his patients who were exposed to the carbolic acid sprays during the surgery.