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Seishu Hanaoka
(1760 - 1835)



picture of a sixty-year-old Seishu Hanaoka

Japanese physician Seishu Hanaoka was the father of anaesthesia. He developed and used an orally administered general anaesthetic, a herbal concoction known as "Tsusensan". Hanaoka successfully operated on over 150 patients.


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Seishu Hanaoka
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Japan's Seishu Hanaoka
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The Wife of Seishu Hanaoka
Anaesthesia and Anaesthetics
Hanaoka's technique of breast cancer excision
Japanese poineer Seishu Hanaoka developed first general anaesthetic

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