| CPC A61B 90/30 (2016.02) [A61B 5/0071 (2013.01); A61B 2090/306 (2016.02); F21V 2200/13 (2015.01)] | 21 Claims |
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1. A medical lighting device for guiding one or more of excitation light and white light during fluorescence image guided surgery towards a surgical area, the medical lighting device comprising:
a device body; and
light guiding optics;
wherein the device body extends longitudinally in a direction of a central axis from a proximal end to a distal end of the device body, towards an area to be illuminated by the one or more of the excitation light and the white light,
the light guiding optics comprise optical fibers and a first ring-shaped mirror encircling the device body in a circumferential direction of the device body,
the optical fibers each extend from a first fiber end configured to receive the excitation light to a second fiber end configured to emit the one or more of the excitation light and the white light,
a segment of each optical fiber passes through the first ring-shaped mirror while being guided in a forward direction towards the distal end, the ends of the segments are the second fiber ends,
after passing through the first ring-shaped mirror, at least one light guiding element redirects the one or more of the excitation light and the white light from the forward direction to a changed direction back towards the first ring-shaped mirror, and
a reflecting surface of the first ring-shaped mirror is arranged in a path of the one or more of the emitted excitation light and the white light, the first ring-shaped mirror is configured and arranged to reflect the one or more of the emitted excitation light and the white light from the changed direction towards the area to be illuminated by the one or more of the excitation light and the white light.
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