NEEDLE ASSEMBLY

Abstract: a needle assembly including: an inner needle with an inner needle hub at its proximal side; a hollow outer needle with an outer needle hub at its proximal side; a needle tip protector protecting a needle tip of the inner needle removed from the outer needle ; a valve body blocking a lumen of the outer needle hub ; a pusher pushing a cut of the valve body open by moving toward the needle tip of the inner needle so as to release blockage of the outer needle hub by the valve body , the pusher including a push-in piece extending toward a proximal end beside the needle tip protector ; and a tubular pusher guide guiding movement of the pusher toward the needle tip , the pusher guide including an insertion area which allows insertion of the push-in piece therein.

Inventor(s): Hiroyuki NAKAGAMI, Shingo SAKAMOTO, Masayuki UENISHI

CPC Classification: A61M25/0606 ({"Over-the-needle" catheter assemblies, e.g. I.V. catheters})

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