Patent ID: 8768480

Claim:
A device implantable in a living body, subcutaneous and able to send and/or receive data to or from the outside of said body and to receive energy by electromagnetic coupling with a coil of an external device, said implantable device comprising: at least one coil; a sealed housing containing electronic means at least for stimulation and/or collection; an outer casing of flexible biocompatible material permeable to electromagnetic waves, the outer casing completely encapsulating the device; and a magnet that can hold and center the coil of said external device with said at least one coil of the implantable device, wherein said sealed housing includes a hollow crown of biocompatible material and permeable to electromagnetic waves, the hollow crown includes an external wall forming an external radial periphery of said sealed housing, and an internal wall oriented towards a center of said sealed housing, the external wall and the internal wall form an opening of an annular U-shaped groove, a bottom formed from biocompatible material is attached to an edge of the external wall and to an edge of the internal wall in an airtight manner, tightly closing the opening of the annular U-shaped groove, defining a hollow part of the crown, the hollow part of the crown houses at least said electronic means and said at least one coil, the internal wall of the hollow crown surrounds a cavity at the center of the sealed housing, the cavity is open on at least one side, said magnet has dimensions compatible with said cavity and is positioned in said cavity at the center of the sealed housing in a reversible and extractable manner, the outer casing includes an opening opposite said cavity at the center of the sealed housing, the magnet is encapsulated in a magnet casing made of a biocompatible material, and the flexible biocompatible material of the outer casing retains the magnet casing inside said cavity and permits the magnet casing to slide through the opening in response to application of force.