Frank biopsy guide, a trademark for a device consisting of a long needle containing a hooked wire used to obtain biopsy samples of breast tissue. The needle is inserted into the breast until its tip nearly touches the lesion observed by mammography. The needle is withdrawn, but the hooked wire remains to locate the tissue site. The surgeon cuts along the wire or otherwise approaches the hooked end of the wire and removes the tissue. See also Kopan’s needle.
