An RFID ring illumination system includes an illumination ring and a
printed circuit board. The illumination ring has a light refracting layer
integral with the front of a surgical machine. The printed circuit board
is located behind and close to the front of the surgical machine. The
printed circuit board has an RFID reader antenna and a light source
mounted on it. The light emitted by the light source travels through the
illumination ring and is visible from the front of the surgical machine.