In addition to the linearly arranged electrode points, an optical glass fiber suitable for light input and output was installed. Fiber optics are made of 60 micron diameter elementary fiberglass. The light exits perpendicular to the longitudinal axis of the electrode at the specified discharge point.
The fiber optics currently in use conduct light in the wavelength range of 400 to 700 nanometers, but fibers operating in other wavelength ranges can also be incorporated.
• Steel needle: thin-walled stainless steel tube (ferromagnetic material!). Diameter: 185-360 microns. (Incorporation of more fiber optics will increase the diameter of the electrode.)
• Lead points: platinum-iridium wire. Diameter: 15, 20, 25, 40 microns.
• Synthetic resin binder: implant grade epoxy resin.
• Connector: Omnetics, Precidip, etc. different types. (for electrical and liquid connections, see connectors)
• Fiber optics: connected with a separate connector.