Abstract
A curved hand-piece CO2 laser was developed to facilitate CO2 laser surgery under topical anesthesia with fiberoptic monitoring. Laser irradiation experiments with the hand-piece demonstrated minimal damage to soft tissues. In a clinical trial, the CO2 laser vaporized a vocal polyp and a vocal nodule. The wound assessment turned out well within a couple of weeks, and the mucosal vibration of vocal cords was preserved. Although the study is preliminary, the newly developed hand-piece proved to be useful in performing CO2 laser surgery under topical anesthesia.
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