Bone biopsy extractor and bone tissue needle biopsy extraction device

The utility model relates to the field of medical instruments, and provides a bone biopsy extractor and a bone tissue needle biopsy extraction device.The bone biopsy extractor comprises a rotating handle, a sampling needle tube and a needle head base which are sequentially connected, and the needle head base comprises a scraping part and a guiding part; the scraping part is arranged at one end, far away from the rotating handle, of the sampling needle tube, the scraping part comprises an inclined plate and two arc-shaped plates which are vertically arranged, the inclined plate is connected between the two arc-shaped plates, so that the section of the scraping part is Z-shaped, and the guide part is arranged at one end, far away from the sampling needle tube, of the scraping part; the bone tissue needle biopsy taking-out device further comprises a trocar assembly and a needle handle. The needle handle comprises a handle and a needle cover which are clamped with each other; the trocar assembly is fixedly clampe