What is the bevel of a needle?

The bevel of a needle refers to the cutting edge of the needle, which is instrumental in how the needle penetrates the skin or tissue. The design of the bevel creates a sharp point that facilitates easier and more precise insertion, reducing discomfort for the patient. This sharpness is essential in medical procedures to ensure that the needle can effectively penetrate the skin with minimal trauma.

The other aspects of the needle, such as the length, point of attachment to the syringe, or the hollow cavity within the needle, do play roles in the overall functionality of the needle but do not define what the bevel is. The bevel specifically pertains to the angle and sharpness at the needle’s tip, which is critical for its penetration ability.