Cannula bump
AssigneeSmiths Medical ASD, Inc.
InventorsMichael C. Vulgaris, James Muskatello, Harsh D. Chheda
Life of this patent
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Abstract
A method of creating a feature on a needle. The method comprising the steps of providing a needle having a sharpened distal end for insertion into an insertion site on a subject, a proximal end, and a tubular wall defining an inner diameter and an outer diameter; gripping a distal portion of the needle about the outer diameter; gripping a proximal portion of the needle about an outer diameter; and applying a compressive force between the distal portion and the proximal portion sufficient to effect an outward buckling of the tubular wall, thereby increasing an outer diameter of the tubular wall between the distal portion and the proximal portion.
Claims12
A method of creating a feature on a needle, the method comprising:
- providing a needle having a distal end for insertion into an insertion site on a subject, a proximal end, and a tubular wall defining an inner diameter and an outer diameter, the needle extending along a longitudinal axis;
- gripping a distal portion of the needle about the outer diameter;
- gripping a proximal portion of the needle about the outer diameter;
- and
- applying a compressive force along the longitudinal axis between the distal portion and the proximal portion sufficient to effect an outward buckling of the tubular wall, thereby increasing an outer diameter of the tubular wall between the distal portion and the proximal portion.
A method of making a needle, comprising the steps of:
- positioning a cannula having a distal tip, a proximal end and a longitudinal body having a wall having an outer diameter along a longitudinal axis;
- using at least one gripping member to grip a distal portion and a proximal portion of the needle;
- applying a compressive force along the longitudinal axis between the distal portion and the proximal portion to cause the outer diameter of the wall between the distal portion and the proximal portion to extend radially from the longitudinal axis to form a needle feature that has a radial dimension different from the rest of the cannula.
Dependencies are inferred from the claim text.