| 摘要 |
The present invention refers to an extractor of screws broken in corticals formed by a one-piece stainless steel structure. Said extractor is useful for safely and accurately removing screws broken due to the use of screw plates for fixing bone fractures. Said novel tool extracts tension screws broken by stress, reduces surgeon's time in the operating room and avoids infection risks. The inventive tool further includes saw blade-type cutting teeth with a cylindrical left spin, which avoid the use of bone-weakening tools. The inventive tool includes a fastening shank for carrying out the motion; a threaded conical section coupled to the screw threads for extracting said screw by its main body, said main body being the portion by which the extractor reaches the bone.
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