Novel supporting compression screw for femoral neck fracture
The utility model provides a novel supporting compression screw for femoral neck fracture, which comprises a screw body of a hollow structure, a first thread is arranged on the outer surface of the head end of the screw body, a second thread is arranged on the outer surface of the tail end of the sc...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides a novel supporting compression screw for femoral neck fracture, which comprises a screw body of a hollow structure, a first thread is arranged on the outer surface of the head end of the screw body, a second thread is arranged on the outer surface of the tail end of the screw body, the direction of the first thread is opposite to that of the second thread, and a cuttingsurface is arranged at the tail end of the screw body. Bone fitting. The threads opposite in direction are arranged at the screw head end and the screw tail end of the screw body, holding force is increased, after the screw tail end is cut and processed, when the screw body is screwed into a femoral neck, the threads at the screw tail end are still anchored with leather, and the holding force is enhanced; meanwhile, the cutting face is also tightly attached to the bone face, and discomfort caused by protrusion of an inner fixing object is reduced. And irritation is reduced by clinging to the cortex of the backbone.
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