3年6月14日附录IX分类准则I定义1、分类规则的定义1.1持续时间瞬时:通常指连续使用不超过60分钟;短时间:通常指连续使用不超过30天;长时间:通常指连续使用30天以上。1.2侵入式器械通过人体孔道或身体表面的口全部或部分进入体内的器械。人体孔道:人体的自然开口,以及眼球外部表 June 14, 2003 Appendix IX CLASSIFICATION GUIDELINES 1 Definitions 1. Definition of classification rules 1.1 Duration Instantaneous: usually means continuous use for no more than 60 minutes; short time: usually means continuous use for no more than 30 days; long time: usually refers to continuous Use more than 30 days. 1.2 invasive devices through the human body orifice or the surface of the mouth all or part of the body into the body of equipment. Human pores: the body’s natural openings, as well as the external eye table