Tuesday, February 19, 2019

Prosthetics :: essays research papers

Introductionprosthetics is the branch of surgery dealing with automatic devices used to reproduce the form and function of missing body parts. Prosthetics is the backup of faulty or amputated body parts with artificial body parts. cardboard limbs have been in use since at least 300 BC. In AD 1509 German knight, Gtz von Berlichingen, called Gtz of the weight-lift Hand, wore an artificial bowl over with jointed fingers. Early in the 19th century a German prosthesist built a consider with fingers that could be flexed or extended and that could prevail absolved objects, such as a pen or a hat. Before World state of war I (1914-1918), wood was considered the best means for making artificial legs, but later an aluminum alloy called Duraluminum, and to a greater extent recently fiber materials, have made artificial limbs both jackanapes and strong. In recent years, the manufacture of prosthetic devices has developed into a science. arranged limbs with functioning joints hatful simulate natural motion. Hip joint prostheses can provide virtually normal mobility for people with damaged hip joints. floorArtificial limbs, in one form or other, have been in use from ancient times. In 1885, a specimen was discovered in a tomb at Capua, Italy, along with other relics dating from 300BC. The famed artificial hand built in 1509 for the German knight Gotz von Berlichingen, who was called Gotz of the Iron Hand, weighed about 1.4 kg (3 lb.) and had articulated fingers so constructed as to be sufficient to grasp a sword or lance. The hand is in the Nrnberg Museum and is still in working order. Early in the 19th century a German prosthesist built a hand with fingers that could be flexed or extended without assistance and yet could still close to hold light objects, such as a pen, a handkerchief, or a hat. In 1851, a French prosthesist invented an artificial arm fitted with a wooden hand and attached to a leather socket that fitted the stump firmly. The fingers were ha lf-closed, the thumb pivoted on a pin and could press firmly against the fingertips by a concealed, strong sorry band the grasp of the thumb could be operated by a apparatus attached to the opposite shoulder. The same inventor devised a leg that reproduced a natural gait and lengthened the stride.TechnologyBefore World War I, wood was universally considered the best substance for making artificial legs. Prosthetic devices made of leather reinforced with metal bands tended to lose their shape and were and so unsatisfactory.

No comments:

Post a Comment