Cannula(redirected from Venflon)
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a hollow tube with a blunt end designed for intro-ducing into the human (or animal) body drugs or X-ray contrastmedia, restoring the patency of the respiratory tract, or with-drawing fluids from the body cavities. It is also used for anatomi-cal, pathologicoanatomic, and laboratory studies. Cannulas aremade of metal, glass, or plastic.