Francis Rynd

Francis Rynd (1801 – 1861)

Francis Rynd (1801 – 1861) was an Irish physician.

Arguably the inventor of the hypodermic needle, performing and recording the results of the first hypodermic injection on June 3rd 1844. However, the invention is more commonly attributed to Alexander Wood in 1853

In Rynd’s design, a morphine solution flowed under gravity through the skin breaching trochar, acting as a sedative to treat neuralgia. The 1853 invention used a plunger syringe, allowing doctors to inject solutions faster, and to give intravenous injections.

Nothing did me any good but a curious little new-fangled operation of putting opium under the skin, which relieved one for 24 hours

Florence Nightingale


  • Born 1801 Dublin, Ireland
  • Physician at the Meath Hospital in Dublin
  • 1830 – MRCS member of the Royal College of Surgeons
  • 1836 – Medical superintendent of the Mountjoy Prison
  • Died 1861

Major Publications


eponymictionary CTA


the person behind the name

Emergency physician MA (Oxon) MBChB (Edin) FACEM FFSEM with a passion for rugby; medical history; medical education; and informatics. Asynchronous learning #FOAMed evangelist. Co-founder and CTO of Life in the Fast lane | Eponyms | Books | vocortex |

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