The present invention comprises a U-type iron core, a pair of coil windings, a pulse generator, and a U-type permanent magnet, which are assembled as a device for improving the sum of magnetic flux vector in the energizing area. The present invention configures the permanent magnets at symmetrical positions above the electromagnet having the magnetic property of the pole of the permanent magnet opposite the corresponding electromagnet, so as to concentrate the magnetic field lines outside both poles of the electromagnet toward the permanent magnet, and thus reduce the magnetic leakage and greatly improve the sum of magnetic flux vector in the energizing operation area, and further achieve the effect of using pulsating current to energize and generate the electromotive force for activating bone cells.本發明乃包含:一馬蹄形鐵芯、一對線圈繞組、一脈衝產生器、一馬蹄形永久磁鐵,組構成可提升激磁作業區之磁通密度向量和的裝置,其將永久磁鐵安置於電磁鐵之上方的對稱位置,而對應之永久磁鐵磁極與電磁鐵磁極的磁性相反,可使電磁鐵兩磁極外側的磁力線向永久磁鐵集中,以降低其漏磁,而大幅度提升激磁作業區之磁通密度的向量和,進一步達到以脈衝電流來激磁產生電動勢使骨質細胞活化之功效。1‧‧‧馬蹄形電磁鐵11‧‧‧馬蹄形鐵芯12‧‧‧線圈繞組2‧‧‧馬蹄形永久磁鐵3‧‧‧脈衝產生器4‧‧‧激磁作業區
