本文件规定了用于指示气道设备（如喉上气道、气管导管或气管造口导管）的缓冲区内压力的袖套压力指示器的基本性能和安全要求。 本文件也适用于将缓冲压力指示与袖带充气方法相结合的装置（如注射器或泵）。该装置还可以提供一种将袖带充气自动保持在特定压力或压力范围内的方法。 本文件中规定的要求适用于独立袖带压力指示器和集成到其他医疗设备中的指示器，例如呼吸机、麻醉工作站等。

This document specifies essential performance and safety requirements for cuffpressureindicators used to indicate the intracuff pressure of airway devices, such as supralaryngeal airways, tracheal tubes or tracheostomy tubes. This document is also applicable to devices that combine intracuffpressure indication with a method of cuff inflation (such as a syringe or pump). The device can also provide a method of automatically maintaining cuff inflation at a specific pressure or within a pressure range. The requirements specified in this document apply to stand-alone cuff pressure indicators and those integrated into other medical devices e.g. ventilators anaesthesia workstations etc.