Cannula having an overlapping cannula feature and notch feature
AssigneeBecton, Dickinson and Company
InventorsAustin Jason McKinnon, Marty L. Stout
Life of this patent
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Abstract
A cannula having a notch feature and a cannula feature that at least partially overlap each other is described herein. Generally, the cannula comprises a tubular shaft with a substantially constant outer diameter. The cannula feature comprises at least one surface that extends laterally past the cannula's outer diameter. For instance, the cannula feature may comprise a crimp feature or a welded ferrule feature. The cannula feature further comprises a distal end and a proximal end. Accordingly, a portion, if not all, of the notch feature is disposed between the cannula feature's distal end and proximal end. The cannula may be used in any suitable assembly, including a catheter assembly comprising a needle capture mechanism.
Claims20
A cannula, comprising:
- a shaft having an outer diameter;
- a cannula feature comprising a surface that extends laterally past the shaft's outer diameter, wherein the cannula feature further comprises a distal end and a proximal end;
- and
- a notch feature defining an opening in the shaft, wherein a distal-most edge of the notch feature is disposed at or proximal to the distal end of the cannula feature such that at least a portion of the cannula feature and the notch feature overlap and such that the opening in the shaft extends through and penetrates at least a portion of the cannula feature.
A catheter assembly, comprising:
- a catheter assembly having a needle capture mechanism;
- and
- a needle comprising a notch feature defining an opening in the needle and having a crimp feature comprising a distal end and a proximal end,
- wherein a distal-most edge of the notch feature is disposed at or proximal to the distal end of the crimp feature such that at least a portion of the cannula feature and the notch feature overlap and such that the opening in the shaft extends through and penetrates at least a portion of the crimp feature.
A method for making a needle, the method comprising:
- providing a needle;
- forming a crimp feature on the needle, the crimp feature having a distal end and a proximal end;
- and
- defining a notch feature in the needle the notch forming an opening in the needle,
- wherein a distal-most edge of the notch feature is disposed at or proximal to the distal end of the crimp feature such that at least a portion of the crimp feature and the notch feature overlap and such that the opening in the shaft penetrates at least a portion of the crimp feature.
Dependencies are inferred from the claim text.