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作者自1983年5月至1984年8月为20例喉摘除患者安装Blom-Singer发声器。1983年安装11例为鸭嘴型;1984年9例为活板门型。两型比较:①发声器的气流抵抗:流量为100cm~3/秒时,鸭嘴型的气流抵抗为0.2cmH_2O/
The authors installed Blom-Singer sounders for 20 patients with laryngectomy from May 1983 to August 1984. In 1983, 11 cases were installed as duckbill type; in 1984, 9 cases were trapdoor type. Comparison of two types: ① the flow resistance of the sounder: flow rate of 100cm ~ 3 / s, duckbill-type airflow resistance of 0.2cmH_2O /