Implantable cochlear system with integrated components and lead characterization

A method for adjusting operation of a stereo cochlear implant system comprising:

• receiving a command to adjust operation of the stereo cochlear implant system;
• determining a first existing transfer function associated with a first cochlear implant subsystem, the first existing first transfer function defining a relationship between a received stimulus signal and a first output stimulation signal;
• determining a first updated transfer function reflecting an adjusted operation associated with the received command, the first updated transfer function being based on the first existing transfer function and the received command;
• updating operation of a first cochlear implant subsystem to replace the first existing transfer function with the first updated transfer function;
• determining a second existing transfer function associated with a second cochlear implant subsystem, the second existing transfer function defining a relationship between a received stimulus signal and a second output stimulation signal;
• determining a second updated transfer function reflecting an adjusted operation associated with the received command, the second updated transfer function being based on the second existing transfer function and the received command;
• and
• updating operation of the second cochlear implant subsystem to replace the second existing transfer function with the second updated transfer function.

An adjustable stereo cochlear implant system comprising:

• a first cochlear implant subsystem comprising a first signal processor;
• a second cochlear implant subsystem comprising a second signal processor;
• and
• an implantable battery and/or communication module in communication with the first signal processor and the second signal processor and configured to:
• receive a command to adjust operation of the stereo cochlear implant system;
• determine a first existing transfer function associated with the first signal processor of the first cochlear implant subsystem, the first existing transfer function defining a relationship between a received stimulus signal and a first output stimulation signal;
• determine a first updated transfer function reflecting an adjusted operation associated with the received command, the first updated transfer function being based on the first existing transfer function and the received command;
• output a signal the first signal processor to update operation of the first signal processor of the first cochlear implant subsystem to replace the first existing transfer function with the first updated transfer function;
• determine a second existing transfer function associated with the second signal processor of the second cochlear implant subsystem, the second existing transfer function defining a relationship between a received stimulus signal and a second output stimulation signal;
• determine a second updated transfer function reflecting an adjusted operation associated with the received command, the second updated transfer function being based on the second existing transfer function and the received command;
• and
• output a signal to the second signal processor to update operation of the second signal processor of the second cochlear implant subsystem to replace the second existing transfer function with the second updated transfer function.