Novel anti-drag surface texture biopsy needle

The invention belongs to the field of biomedical engineering and relates to a novel anti-drag surface texture biopsy needle. The surface of the biopsy needle is provided with an intersecting spiral groove structure texture having the anti-drag function and the anti-friction function. The section of each spiral groove of the intersecting spiral groove structure texture is semicircular or rectangular or in a V shape or in a parabola shape and or in a semi-ellipse shape. The width of the section ranges from 0.1 mm to 0.3 mm, the depth of the section ranges from 0.05 mm to 0.1 mm, the screw pitch of the spiral grooves ranges from 0.5 mm to 1 mm, and the axial length of the spiral grooves ranges from 20 mm to 40 mm. By the adoption of the novel anti-drag surface texture biopsy needle, the friction force in a penetration process can be effectively reduced, deformation of human tissue is reduced, the bending degree of the biopsy needle in the penetration process is reduced, and the biopsy precision is improved.