Myringotomy cleaning it with an ear spoon. Surprisingly, the patient's hearing improved. There are also reports from the 17th and 18th centuries describing separate experiments exploring the function of the ear drum. In particular, the animal experiments of Thomas Willis were expanded upon by Sir Astley Cooper, who presented two papers to the Royal Society in 1801 on his observations that myringotomy could improve hearing. First, he showed that two patients with perforations of both eardrums could hear perfectly well, despite conventional wisdom that this would result in deafness. Second, he demonstrated that deafness caused by obstruction of the Eustachian tube
Pfannenstiel incision Hermann Johannes Pfannenstiel (1862–1909), a German gynecologist who invented the technique, in 1900. In the United Kingdom, the incision was popularised by Dr. Monroe Kerr, who first used it in 1911, so in English speaking countries it is sometimes called the Kerr incision or the Pfannenstiel–Kerr incision. Kerr published the results in 1920, proposing that this method would cause less damage to the vascularized areas of uterus than the classical operation. He claimed that it was better than the longitudinal uterine incision in terms of chances for scar rupture and injury to vessels. Pfannenstiel incision A Pfannenstiel incision , Kerr