Francis Rynd

Francis Rynd AM, MRCS, MRIA (1801–1861) was an Irish physician, famous for inventing the hollow needle used in hypodermic syringes.

Francis Rynd was born in Dublin, Ireland, in 1801 to James Rynd and his third wife Hester Fleetwood, of Ryndville Castle, County Meath and Derryvolan, County Fermanagh, Ireland, respectively. Dr Rynd attended Trinity College, Dublin and worked at the Meath Hospital in Dublin. At the Meath Hospital he trained under surgeon Sir Philip Crampton (Rynd named one of his sons Philip Crampton Rynd after him), Francis married Elizabeth Alley (the daughter of Alderman John Alley who served as Lord Mayor of Dublin) and had three sons and daughters.

Francis Rynd was a member of the exclusive Kildare Club in Dublin.

Rynd became a member of the Royal College of Surgeons in 1830. In 1836 he took a surgical post in the Meath Hospital working alongside William Stokes and Robert James Graves. Dr Rynd, who had a lucrative private practice, also served as medical superintendent of the Mountjoy Prison.

In a March 12, 1845 article in the Dublin Medical Press he outlined how he injected fluids into a patient with a hypodermic syringe, which he had done on a female patient in May 1844.

Rynd died in Dublin in 1861 after suffering a heart attack. He was 60 years old.

His half brother Goodlatte Rynd, Esquire was killed at the Battle of Salamanca in 1812, and his niece by Goodlatte and Lady Harriet Jane Brown, née Temple, Lady Maria Rynd, married Pedro José Domingo de Guerra in 1840, then Bolivia's Consul at Paris. She moved to South America and went on to become first lady of Bolivia in 1879. Maria's grandson, Jose Gutierrez Guerra, was also president of Bolivia between 1917 and 1920.

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