Laser adapter for tracheoscopy.

@article{Andrews1976LaserAF,
  title={Laser adapter for tracheoscopy.},
  author={A H Andrews and Leonard L. Bailey},
  journal={The Annals of otology, rhinology, and laryngology},
  year={1976},
  volume={85 5 Pt.1},
  pages={625-6}
}
This adapter makes it possible for the operating microscope to be used monocularly, to see axially down the CO2 laser beam, to use the aiming light and its joy stick control. This makes the laser useful for upper tracheal lesions through a tracheoscope.