Implantable electrical stimulator with curved housing

The invention is a new implantable electrostimulator with curved housing, with a housing formed by two coupled half-shells suitable for containing at least the accumulator and the control and command circuit of the electrostimulator. The two half-shells constituting the body of the new electrostimulator are made of easily deformable biocompatible material, preferably a titanium-based alloy. The two half-shells have a generically arcuate or convex complementary form with raised edges. Said raised edges of the two half-shells are such as to permit coupling of the two half-shells to form a closed housing. Once coupled, the two half-shells enclose both the accumulator and the control and command circuit.