Patent ID: 11918410
Assignee: SMITHS MEDICAL ASD, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. The needle of claim 1, further comprising an other groove spirally wound about the outer circumferential wall of the shaft from at least adjacent the sharp tip crisscrossing the one groove along the shaft, the other groove having two walls orthogonal to each other formed onto the outer circumferential wall of the shaft with the orthogonal walls each formed at the angle (α) tilted toward the proximal end of the shaft, the wall closer to the outer circumferential wall formed at an angle (β) relative to the longitudinal axis, the angle (β) resulting from subtraction of the angle (α) from a would be neutral position of the walls wherein the walls each are angled at approximately 45° from the longitudinal axis.