Carnes arm and function The Carnes arm is a sophisticated and mechanical prosthetic arm. It was developed by William T. Carnes and patented from the year 1911 on under the US Patents 760102 (artifical limb), 1046966 and 10469672287781 (artificial arm and hand). Interestingly, the more intricate mechanism that the Germans bought from William Carnes (see … Continue reading Carnes arm – history and current status [update]