Medical puncture needle and method of manufacturing puncture needle

A medical puncture needle comprising:

• an end portion including a needle tip;
• and
• a main body portion contiguous with the end portion, having a substantially circular cross-sectional outer shape,
• wherein, in a side view of the medical puncture needle, the needle tip is located on a line that extends along an outer surface of the main body portion in a direction parallel to an axis of the main body portion, and
• wherein the end portion includes:
• a first bevel formed by a first helical surface that extends to the needle tip and twists so as to have an angle that gradually decreases toward the needle tip in an axial direction, in a cross-section orthogonal to the axial direction, relative to an imaginary plane that extends along the axis of the main body portion, and
• a second bevel formed by a second helical surface that extends to the needle tip and twists so as to have an angle that gradually decreases toward the needle tip in an axial direction, in a cross-section orthogonal to the axial direction, relative to an imaginary plane that extends along the axis of the main body portion,
• wherein the first and second bevels define a first cutting edge constituted by a first ridge formed where the first and second bevels intersect, the first ridge defining the needle tip at one end thereof.