| 摘要 |
A cannula or needle set for fluid flow connection with the vascular system of a patient. In one embodiment, the set comprises a hollow, hypodermic needle having a longitudinal axis and a sharp end for skin penetration and connection with the vascular system. A hollow hub carries the needle at a needle opposite to the sharp end. A fluid flow port is defined in the hub at a position laterally spaced from the axis of the needle. An injection site aperture is defined in the hub at a position centrally intersected by the needle axis, the injection site aperture being closed by a recloseable, needle-penetrable wall.
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