The faculty, in conjunction with vendor representatives, would continue with a demonstration of laser interaction with various materials at which the laser energy could be applied, such as a tongue depressor, fruit, and pieces of meat of different consistencies. Through such demonstrations and subsequent opportunities to fire the lasers at these same objects, the course attendees were taught how to operate the lasers and what to expect with different power settings, duration of laser impulses, and tissues of different colors and composition.
Next would come simulation of laser bronchoscopy with a canine animal model. In an effort to maximize the practical experience offered, we attempted to limit the number of physicians around any one “station” to four, accompanied by a faculty member to supervise this practical phase of training. Even with a ratio such as this, it usually was not possible to offer any one course attendee more than two hours of actual time practicing laser bronchoscopy at such a course.
Efforts were made to demonstrate use of the C02 laser with a suspension laryngoscope for laryngeal , as well as through a (rigid) C02 laser bronchoscope for tracheal lesions. Other canine animal models were created by inserting a muscle flap into the lumen of the trachea through an incision in the anterior tracheal wall, to mimic a tumor within the trachea. Both rigid and flexible bronchoscopes would be used, the latter through large bore plastic endotracheal tubes.