Absorbable interface screw

The utility model discloses an absorbable interface screw. The absorbable interface screw comprises a screw rod, the screw rod is made of an absorbable material, an external thread is formed in the circumferential direction of the screw rod, a first through hole is formed in the position, located at the tooth bottom of the external thread, of the screw rod, and the first through hole is used for being filled with functional medicine. Therefore, after the absorbable interface screw is implanted into a body, along with the continuous release of the functional medicine in the first through hole, the growth of bone tissues can be promoted; and after the functional medicine is released, the first through hole becomes empty, so that the growth of bone tissues into the screw can be accelerated, and the bone tissues can completely replace the screw finally. 本实用新型公开了一种可吸收界面螺钉，可吸收界面螺钉包括螺杆；所述螺杆是由可吸收材料制成的，所述螺杆的周向开设有外螺纹，在所述螺杆上且位于所述外螺纹的牙底位置处开设有第一通孔，所述第一通孔用于填充功能性药物。由此在可吸收界面螺钉植入机体后随着第一通孔内功能性药物的不断释放，不仅能够促进骨组织的生长；而且在功能性药物释放后由于