Biomedical Engineering Reference
In-Depth Information
function is associated with larger size. The nature of the power source frequently defines
the entire system approach. If the implant requires constant communication, power and
communication via an inductive link is often the method of choice. If the implant needs
to operate without an external transmitter coil, then an implanted power source is needed.
For an implantable neural stimulator, key questions are as follows:
•
Should the stimulator be capable of independent stimulation of the electrodes
or should an extracorporeal controller command the implant for each individual
stimulation pulse?
FIGURE 7-54
Block diagram of
one submodule of
the IIT visual
prosthesis. (IIT 2002)
