Patent ID: 7175610
Filing Date: 2007-02-13
Classification: A61M

Abstract:
1. A protector sheath for a winged needle capable of accommodating a winged needle having a needle tube with a sharp blade edge, a hub firmly attached to a proximal end portion of the needle tube, and a wing provided on the hub, wherein the protector sheath comprises a cylindrical main body having a proximal end and a distal end, at least three slits provided in a side wall of the main body and dividing the side wall into a corresponding number of sections, and wherein each of said at least three slits comprises a proximal end portion having a slot with a closed end and capable of accommodating the wing of the winged needle, a middle portion parallel to the axis of the main body and a curved distal end portion arranged in the side wall of the main body on the proximal side of the distal end and having a shallow V shape or an arched shape formed by a V shape or an arched shape convex portion in one of said sections and a corresponding V shape or arched shape concave portion in an adjacent section and opposite the convex portion such that the convex portion and concave portion are interfitting, the proximal end portion of the slit being configured such that it receives the wing so that the needle tube of the winged needle is arranged parallel to the axis of the main body.