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Daniels (Crewman), dying

Daniels using a cannula

Mercy hospital elderly patient

An elderly woman using a cannula

A cannula was a length of flexible tubing that provided life-sustaining substances to patients.

In 1944, Crewman Daniels wore a cannula while dying. (ENT: "Storm Front, Part II")

In 1986, a kidney patient at Mercy Hospital had a nasal cannula. (Star Trek IV: The Voyage Home)

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