Bone screw
A technology of bone screw and thread, applied in the direction of internal bone synthesis, fixer, fastening device, etc., can solve the problem of inappropriate intubation, and achieve the effect of promoting the healing process
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[0021] Such as Figure 1-4 The bone screw according to the first embodiment shown in , comprises a tubular body 1 having an open first end 2 and an open second end 3 and a central longitudinal axis L. As shown in FIG. At the first end 2, the free edge of the tubular body comprises a plurality of cutting teeth 4 configured to cut holes in the bone. In a part of the outer wall of the tubular body (closer to the first end 2 as shown in this embodiment), the tubular body comprises a so-called bone thread 5 . The bone thread 5 is configured to cut into the bone as the bone screw is screwed into the bone. Although the figures show bone threads having a substantially zigzag shape, all types of known bone threads may be used. The cutting teeth 4 extend coaxially to the longitudinal axis L from the edge of the first end 2 . In the illustrated embodiment, the cutting teeth are substantially saw-tooth shaped. This shape comprises a steep flank 4a extending along the free edge at an a...
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