Concept for attaching a sound processor to the head via an interchangeable magnet

A hearing aid for placement on the head of a user comprising:

• a first part comprising:
• an acoustic input transducer adapted to convert an ambient sound picked up at an ear of the user to an electric signal,
• a signal processor adapted to process the electric signal according to specifications of the user into a processed electric signal, and
• an output transducer adapted to convert the processed electric signal into a transmission signal and transmit the transmission signal inductively, and
• a second part linkable to said first part by magnetic forces, and where the second part is configured to be implanted into the head of the user, and the second part comprising:
• a receiver adapted to receive the transmission signal inductively and convert the transmission signal to an output signal perceivable as sound by the user,
• wherein said first part further comprises a receptacle adapted to receive an insert element, and where the receptacle is arranged in said first part such that said transmission coil surrounds said insert element, said insert element comprising at least one projection configured for engaging with a corresponding recess of said first part by rotating the insert element relative to said first part, and said insert element is a magnet module consisting of a magnet holder, a seal ring and/or a magnet,
• wherein the insert element has a substantially cylindrical component,
• wherein the at least one projection is at least partially located on an axial end surface of the substantially cylindrical component, and projects away from the substantially cylindrical component in a radial direction, and
• wherein the insert element and the first part are connectable by means of a male/female thread to be screwed together.