Objective: To explore the heat injury level of vocal cord by different power of the Diomed 25 semi conductor laser so as to provide scientific evidence for clinical laser therapy of larynx diseases.

• 目的 :探讨 Diom ed- 2 5半导体激光不同功率对声带热损伤的程度 ,为临床应用激光治疗声带病变提供实验依据。