The invention relates to a novel
vertebral bone tissue biopsy instrument which comprises an outer tube sampling
assembly, an inner tube sampling
assembly and a push rod
assembly, wherein the outer tube sampling assembly comprises an outer tube sampling
handle and a sampling outer tube, the sampling outer tube is fixedly connected with the outer tube sampling
handle, an outer tube sampling component is arranged at the far end of the sampling outer tube, and the outer tube sampling component is subjected to reducing treatment; the inner tube sampling assembly comprises an inner tube sampling
handle, an inner tube connecting piece, a rotating piece and a sampling inner tube, the outer tube sampling handle is fixedly connected with the inner tube sampling handle, the inner tube connecting piece is fixedly connected with the sampling inner tube, an inner tube sampling component is arranged at the far end of the sampling inner tube, the inner tube sampling component can be composed of one or more sheet structures, by rotating the rotating piece, the sampling inner tube connecting piece and the inner tube advance in the axial direction, the inner tube sampling component advances for closing along the variable-
diameter outer tube sampling component, and the
bone tissue cutting function is achieved; and the push rod assembly comprises a push rod handle and a push rod, the push rod is fixedly connected with the push rod handle, and the push rod can be inserted into the sampling inner tube in a sliding manner.