Preis C, Hartmann T, Preis I, Wildling E, Gilly H
Department of Anaesthesiology and General Intensive Care, University of Vienna, Austria.
Br J Anaesth. 1998 Nov;81(5):795-6. doi: 10.1093/bja/81.5.795.
The general-purpose laryngeal mask airway (LMA) is re-usable when undamaged, and cleaned and autoclaved correctly. We had found weakening of the silicone adhesive that bonds the connector of the LMA to the tube. We report that repeated autoclaving damaged the adhesive such that the connector could be rotated in the tube after the 12th autoclave cycle in almost all of the LMA tested. The damage to the adhesive did not affect the airtightness of the junction, which appears to be maintained by the material properties of the connector and tube and by the shape of the join.
通用型喉罩气道（LMA）在未受损且正确清洁和高压灭菌的情况下可重复使用。我们发现连接LMA连接器与导管的硅胶粘合剂出现了弱化。我们报告称，反复高压灭菌会损坏粘合剂，以至于在几乎所有测试的LMA中，经过第12次高压灭菌循环后，连接器在导管中都可以旋转。粘合剂的损坏并未影响连接处的气密性，连接处的气密性似乎由连接器和导管的材料特性以及连接处的形状得以保持。
