Magnetic field generating-apparatus for biostimulation

A magnetic field generating apparatus for biostimulation comprising:

• a core formed by magnetic material;
• and
• coils wound around portions of the core,
• wherein the core includes at least two pairs of leg portions which are juxtaposed each other, in which
• for each one of the at least two pairs of leg portions, there are provided gap-portions which mutually cross each other,
• the coils include first coil portions and second coil portions forming a first magnetic path and a second magnetic path between the at least two pairs of leg portions and the gap-portions respectively;
• and
• wherein by the first coil portions and one pair of the at least two pairs of leg portions, there is generated a magnetic field of first direction which lies on the first magnetic path, by the second coil portions and an other pair of the at least two pairs of leg portions, there is generated a magnetic field of second direction which lies on the second magnetic path, and by a magnetic field formed by synthesizing the magnetic field of first direction and the magnetic field of second direction, a living body is configured to be stimulated, and
• wherein the core includes a first connecting portion which connects the leg portions of the one pair of the at least two pairs of leg portions, and a second connecting portion which connects the leg portions of the other pair of the at least two pairs of leg portions,
• the first and the second connecting portions for the at least two pairs of leg portions are arranged at crossed positions, and
• end surfaces of the at least two pairs of leg portions lie on the same plane.