Hearing aid design

A hearing aid adapted for insertion into a tunnel that connects a retro-auricular space to an ear canal, comprising:

• a hearing aid module comprising:
• a case;
• electronic circuitry housed in said case;
• an acoustic transducer electrically connected to said electronic circuitry;
• a microphone also electrically connected to said electronic circuitry;
• and
• a power source housed in said case end electrically connected to the electronic circuitry;
• a hollow tube adapted for insertion into the tunnel, wherein the case of the hearing aid module is adapted to be slidably inserted into and withdrawn from said tube;
• wherein the electronic circuitry includes signal processing circuitry for amplifying and processing signals sensed through the microphone and for presenting the amplified and processed signals to the acoustic transducer;
• and
• wherein the acoustic transducer converts the amplified and processed signals received from the electronic circuitry to sound waves, which sound waves are emitted towards the ear canal.