Anesthetics cause anesthesia, which is the reversible loss of sensation. Without anesthetics any type of surgery would cause unbearable pains, this explains why many surgeries did not work out, previous to the development of anesthetics. Another reason begin, it took a while to perfect the formula of anesthetics to types we are currently using. Doctors began experimenting with different gases such as nitric oxide,which turned out to be a failure, but it did not stop trying to perfect the formula. This led to the first anesthetics being produced for sale in 1858. They were made with ether, chloroform and ironically cocaine, which is now an illegal drug because of how dangerously addictive it is. Heroin, which is now also illegal because of how dangerously addictive it, was once used as an anesthetic in 1898. After many attempts anesthetics were successfully made, so successful that we are able to control what parts of the body they affect, and whether the patient is put to sleep or remain …show more content…
He was an American engineer “attempting to build a device that recorded heart rhythms, but after he mis-assembled the contraption, he noticed that it was giving off a heartbeat-like pulse.” (Chainey) He discovered that his mistake was actually a blessing in disguise because it could be used as a smaller pacemaker. It took him two years of refinement, but he was finally able to perfect it, drafting a patent for it in 1960 and later sending it into production. It has now evolved into a device called the implantable cardioverter-defibrillator, which has and still is helping save the lives of those in