Special tool for femoral neck core decompression bone grafting for aseptic necrosis of femoral head

Abstract

The invention discloses a special tool for femoral neck core decompression bone grafting for aseptic necrosis of femoral head. The tool comprises a hollow shield file device, a porous grinding head and an embedding device; the hollow shield file device comprises a shield file device connecting rod, and a kirschner wire penetrating channel is formed in the shield file device connecting rod; the front portion of the shield file device connecting rod is provided with scraping pieces arranged on the rod body in an array mode, and smearing pieces are arranged on the rear portions of the scraping pieces in an array mode; the porous grinding head comprises a grinding head connecting rod; and the embedding device comprises an embedding device connecting rod. The tool is simple in structure, low inmanufacturing cost and convenient to operate, and solves the problem that bone debris cannot be utilized in an existing bone grafting operation and bone loss is caused. When the tool is used for windowing, the bone debris which is drilled and filed can be extruded into the peripheral wall of the femoral head and neck windowing, and equivalently, the bone debris is used for regrafting bones. The bone debris is prevented from being lost, and meanwhile, the ilium taking and grafting number is reduced. The operation means can extrude sclerotin of the windowing wall, so that the sclerotin around the windowing wall is firmer and denser, and the head collapse is effectively prevented.

Description

technical field [0001] The invention relates to the field of orthopedic surgery, in particular to a special tool for decompression and bone grafting of femoral neck medullar core with aseptic necrosis of the femoral head. Background technique [0002] There is no special medical device for treating femoral head necrosis in the prior art. The bone grafting of fenestration is drilled with a bone drill or a trephine to open the window, and then use a curette to scrape off the necrotic bone and then use the curette to scrape off the necrotic bone for bone grafting or bone grafting bone treatment. There are certain disadvantages in this surgical method, the most important of which is that during the operation of the drill or curette, the bone chips are directly sucked away by the aspirator, and the bone chips cannot be used, resulting in bone loss. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provid...

AI Technical Summary

Problems solved by technology

There are certain disadvantages in this surgical method, the most important of which is that the bone debris is directly sucked away by the suction device during the bone drill or curette operation, and the bone debris cannot be used, resulting in bone loss

Images