when was the first cpap invented?
Here whilst studying investigating various patients they discovered the three different strains of Sleep Apnea. In 1969, Obstructive Sleep Apnea in the trachea (windpipe)and breathing tubes inserted. The First CPAP Machine:1981 The First CPAP machine was invented in 1981 by Australian Colin Sullivan and his team. The idea was pretty basic and was inspired by the idea of reversing how a vacuum cleaner works, pushing air out instead of sucking in.
After World War I, balsa wood also was used in preservers, but by the time of World War II, foam was in use and eventually supplanted kapok. Peter Markus invented the first inflatable life preserver in 1928, receiving U.S. Patent 1694714. It was nicknamed the Mae West in reference to the buxom entertainer, whom wearers of inflated vests were thought to resemble.