Methods to provide a feature on a needle
AssigneeBecton, Dickinson and Company
InventorsAustin Jason McKinnon, Edward G. Henderson, III, S. Ray Isaacson, Bart D. Peterson
Life of this patent
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Abstract
A gripping surface is provided on an outer surface of a needle shield as incorporated into an intravenous catheter assembly. The gripping surface provides a gripping position nearer the catheter adapter, catheter and needle tip for improved balance and control of the catheter assembly during insertion of the catheter. Additionally, the gripping surfaces include a guard feature to prevent a user's unintended contact with various components of the catheter assembly whereby the contact may result in an undesirable “over the bevel” condition.
Claims9
A method for creating a feature on a needle, the method comprising:
- providing a needle having a tube wall defined by an inner diameter and an outer diameter, the needle further having a length;
- inserting a stylet into a hollow interior of the needle;
- providing a lubricant between the stylet and the hollow interior of the needle;
- providing a crimping device having a first anvil and a second anvil, the first and second anvils having opposing planar crimping surfaces, an opposing portion of each planar crimping surface comprising a singular arched surface having a signal curve, wherein a maximum diameter of the singular arched surface is less than the outer diameter of the needle and greater than the inner diameter of the needle;
- aligning the needle within the singular arched surfaces of the first and second anvils such that a portion of a wall thickness of the needle overlaps the singular arched surfaces and a planar portion of the opposing planar crimping surfaces, the hollow interior of the needle being confined within the singular arched surfaces;
- and
- crimping an outer surface of the needle between the planar portions of the opposing planar crimping surfaces such that a sheared portion of the outer surface is displaced outwardly into a gap between the planar portion of the opposing planar crimping surfaces.
Dependencies are inferred from the claim text.