A device invented by an electrical engineer through his research on dogs. The former method includes directly massaging the heart, squeezing, pinching the heart to recontract and also some of these were worn like a necklace. They were replaced by the development of x using a thyratron oscillator. Later developments in x were made to assist the patients efficiently. What is x?
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X is the first cardiac pacemaker invented by a Canadian electrical engineer, John Hopps. He was researching the effects of radio frequency heating on hypothermia in 1941 when he found out that if the heart stopped beating as its temperature dropped, it could be restarted artificially, using mechanical or electrical stimulation to make it beat. This research allowed the development of the first cardiac defibrillation machine, which was used by Hopps to start a dog’s heart in 1949.
In 1950, through research on dogs, Hopps invented the first pacemaker device, which was too large to be used internally.
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