History GCSE Surgery key dates.

Pain infection and blood loss key dates for History Surgery.

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1799 ­ Humphrey Davy discovered laughing gas (nitrous oxide)

1844 ­ horace wells(american) used nitrous oxide to pull out teeth.

(did not work on 10% of people)

1846 ­ ether was used by william morton to remove a growth from
a patients neck.

(it knocked the patient out, could leave…

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1861 ­ Pasteurs germ theory

1861 ­ Lister became a surgeon at Glasgow royal infirmary

1864 ­ Lister found that carbolic acid was used to kill parasites

1867 ­ Listers ward had been free from sepsis for 9 months

1878 ­ Koch discovered the mocrobe that caused blood poisoning .…

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1902- Karl Landsteiner blood groups (A,B &O. AB was added later in

1915- Richard Lewison found that adding sodium citrate stopped
blood clotting which meant it could be stored. (donors no longer
had to be present).

Richard weil then created refrigerated containers which kept the
blood for longer.



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