pacemaker
טקסט Storyboard
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- Hi, I'm John Hopps
- The first artificial pacemaker and first combinedpacemaker-defibrillator. He has been called the "Father of Biomedical Engineering in Canada",
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- He studied at the University of Manitoba, was the developer of the first two pacemakers.
- I was born on May 21, 1919 inWinnipeg, Canada
- Died on November 24, 1998
- John was investigating the effects of radiofrequency heating on hypothermia
- 1941
- He discovered that if the heart stopped beatingwhen its temperature dropped, it could be restarted artificially, using mechanical or electrical stimulation to make it beat.
- In 1950, through research with dogs, Hopps invented the first pacemaker device, which was too large as for internal use
- This research led tothe development of the first cardiac defibrillation machine, which was used by Hopps to start a dog's heart in 1949.
- Pacemaker
- Later, Wilson Greatbatch, an American electrical engineer, invented the first implantable cardiac pacemaker.
- Pacemakers can help regulate the rhythm of the heart in cases of a slow,fast, or irregular heart rate, or a blockage in the heart's electricalconduction system
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- The pacemaker can stimulate the upper chambers of the heart (the atria), the lower chambers (the ventricles), or both
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