Biopsy needle (100) includes one: one end of the needle point (111) of end of tubular needle (110) has the external needle (110) of longitudinal direction There is cylindrical shape and construction with interior needle (120), be to be inserted into outer needle-valve (110) and external needle (110) mobile along its length. Inner needle valve (120) includes be parallel to longitudinal direction of the first side towards first direction perpendicular to cross section of needle outside the interior needle of the distal end of needle point (121) and the first and second side surfaces provided including recess portion (123A, 123B), and second side is to the second direction opposite with first direction.
