Novel biopsy needle

The utility model provides a novel biopsy needle belongs to biopsy needle medical instrument technical field it has been solved current biopsy needle and has cuted and organize inconveniently and puncture resistance too big problem. This novel biopsy needle includes the needle file, biopsy needle and nook closing member, the one end of needle file links firmly with the biopsy needle afterbody, is equipped with the hole in needle file and the biopsy needle, the nook closing member penetrates the hole, is equipped with the notch on the nook closing member, is equipped with the ring channel on the hole that the needle file corresponds, is equipped with the slider of placing in the ring channel on the nook closing member, the nook closing member afterbody is equipped with the arch, still including set firmly the fender at needle file both ends along one with keep off along two, keep off along one with keep off the needle file outer wall of following between two and have the screw section, include still that thread bush and thread bush establish in the screw section the protruding slider that makes of extrusion removes to the one end of ring channel to with the biopsy needle skin that punctures, pull out that protruding to make the notch stretch into interior downthehole, cut off the tissue through notch and biopsy needle head, also can point to and support the thread bush and press down the arch, this moment the biopsy needle can take place rotatory, with the reduction resistance