Fully implantable modular cochlear implant system

A cochlear implant system to be implanted into a patient, the cochlear implant system comprising:

• a cochlear electrode;
• a stimulator in electrical communication with the cochlear electrode;
• a signal processor in communication with the stimulator, the signal processor including a first set of circuitry and a first housing surrounding the first set of circuitry;
• an input source in communication with the signal processor;
• and
• an implantable battery and/or communication module, the implantable battery and/or communication module being configured to provide electrical power to the signal processor and including a second set of circuitry and a second housing surrounding the second set of circuitry;
• wherein
• the signal processor is in communication with the implantable battery and/or communication module via a first lead;
• the first housing comprising insulating circuitry between the patient and the first set of circuitry;
• and
• the second housing comprising insulating circuitry between the patient and the second set of circuitry.

A cochlear implant system to be implanted into a patient, the cochlear implant system comprising:

• a stimulator configured to stimulate to a portion of the patient's ear;
• a signal processor in communication with the stimulator, the signal processor including first circuitry, a first can surrounding and housing the first circuitry, and a first impedance between the first circuitry and the first can to reduce unintended electrical communication between elements external to the first can and the first circuitry of the signal processor;
• an input source in communication with the signal processor;
• and
• an implantable battery and/or communication module, the implantable battery and/or communication module being configured to provide electrical power to the signal processor and including second circuitry, a second can surrounding and housing the second circuitry, and a second impedance between the second circuitry and the second can to reduce unintended electrical communication between elements external to the second can and the second circuitry of the implantable battery and/or communication module;
• wherein
• the signal processor is further configured with a transfer function such that the signal processor receives an input signal from the input source and outputs a stimulation signal to the stimulator based on the received input signal and the transfer function.