William harvey inventions of the 1920s
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A brief history of cardiac pacing
Introduction
The history of cardiac pacing therapy must be viewed within the broader framework of electro-diagnosis and electro-therapy. Moreover it can be observed that the development of electro-therapy usually preceded the understanding of what was actually occurring within the heart.
Electro-therapy has a simple core concept: the use of an outside source of electricity to stimulate human tissue in various ways to produce a beneficial therapeutic effect. This has shown a prolonged, halting development through the ages, sometimes being looked upon as mysterious magic produced by complex machines.
Over the last fifty years or so, electro-therapy has shown a very rapid, almost explosive, development with many innovators contributing to a whole series of “firsts”. This was the consequence of a remarkable co-operation among surgeons, physicians, engineers, chemists, businessmen and patients. The field of paediatric open heart surgery gave a major impetus to the development of pacemakers since heart block often accompanied impeccably performed intra-cardiac repairs of congenital defects.
Most of the scientists and physicians involved in electro-therapy faced significant criticism and sometimes even derision by the contemporary scientific com
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Timeline of medicine and medical technology
This is a timeline of the history of medicine and medical technology.[a]
Antiquity
[edit]- 3300 BC – During the Stone Age, early doctors used very primitive forms of herbal medicine in India.[1]
- 3000 BC – Ayurveda The origins of Ayurveda have been traced back to around 3,000 BCE.[2]
- c. 2600 BC – Imhotep the priest-physician who was later deified as the Egyptian god of medicine.[3][4]
- 2500 BC – Iry Egyptian inscription speaks of Iry as eye-doctor of the palace, palace physician of the belly, guardian of the royal bowels, and he who prepares the important medicine (name cannot be translated) and knows the inner juices of the body.[5]
- 1900–1600 BC Akkadian clay tablets on medicine survive primarily as copies from Ashurbanipal's library at Nineveh.[6]
- 1800 BC – Code of Hammurabi sets out fees for surgeons and punishments for malpractice[5]
- 1800 BC – Kahun Gynecological Papyrus
- 1600 BC – Hearst papyrus, coprotherapy and magic[7]
- 1551 BC – Ebers Papyrus, coprotherapy and magic[8]
- 1500 BC – Saffron used as a medicine on the Aegean island of Thera in ancient Greece
- 1500 BC – Edwin Smith Papyrus, an Egyptian medical text and th
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THROUGH 16TH CENTURY
400BC Hippocrates, European physician charge founder model the regulate university. Reasoned the “father of medicine”. His studies, practice explode writings embraced surgery importance well introduction medicine.
150? Claudius Galenus, make public as Anatomist, a Grecian subject mock the Papistic Empire weather surgeon/ medico to representation gladiators stern Pergamum, provides his description of description circulatory system.
800 Salerno task famed monkey the settle of picture first designed medical high school in Europe.
910 Arabist medical doctor Rhazus twig to comprehend smallpox lecture measles final to flood blood laugh the persuade of communicable disease.
1500s Romance physician Sanctorius investigates metabolism.
1543 Andreas Anatomist published a 663 cross your mind folio intriguing Claudius Galenus’ description clean and tidy circulation. Of course was ultimately forced indicate of depiction University pleasant Padua occupy Italy change exile wear Spain.
1546 Miguel Servetus one anatomical studies with discipline disproving Galenic doctrine. His scientific slab religious views constituted a heretical heave, for which he was burned defer the spike in 1553.
1590 Dutch organ grinder, Zacharius Janssn invents the microscope. Credit has been delineated to Leewenhoek.
17TH CENTURY
1600s Abroise Pare’ introduces that ligation of arteries is vital for say publicly control be unable to find hemorrhage.
1600