Patent ID: 7988643

Claim:
A biopsy needle for obtaining material for histological examination of body tissue, composed of a cannula with a manual turning handle and of a stylet guided in the cannula, the cannula being provided with a shaped cutting edge at a cannula end, characterized in that the cannula end additionally has an area of threads including an inner thread arranged on an inside of the cannula end and an outer thread arranged on an outside of the cannula end, that the inner and outer threads have a pitch and the pitch of the inner and outer threads are matched, that the area of the threads has a wall thickness, wherein the wall thickness is constant, that the cannula has an outer circumference and the outer thread has an externa diameter where the external diameter of the outer thread does not exceed the outer circumference of the cannula, and that the cannula has an inner circumference and the inner thread has an internal diameter where the internal diameter of the inner thread does not exceed the inner circumference of the cannula.