Advance in design and application of self-retaining laryngoscope

Self-retaining laryngoscopy currently is the important medical equipment for supporting the throat examination and treatment. Resction of laryngeal tumor with laryngoscope has become an important method of laryngenl surgery, become an important method of laryngeal surgery, but there are difficult glottal exposure and complications, which different scholars design and study on the self-retaining laryngoscope.And with surgery equipment updates, self-retaining laryngoscopes are used for emerging throat minimally invasive surgery. This review summarizes the design and application of self-retaining laryngoscope at home and abroad, and aims to expand the design and application of support laryngoscope and to promote the further research. Key words: Laryngoscopy; Surgical Procedures, Minimally Invasive; numerical simulation