A low pressure alarm device for medical oxygen cylinders: A description of a prototype

机译：医用氧气瓶低压警报装置：原型说明

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This paper presents the design and evaluation of an oxygen low-pressure alarm for use in conjunction with medical oxygen cylinders. Patients, who are dependent on oxygen supply through portable, high pressure oxygen cylinders, rely on staff vigilance to ensure that the volume of oxygen in the cylinder does not drop below a critical level, thereby compromising their safety. To minimise such risks, a low cost, mechanically driven, easy to interface, low pressure alarm was developed to generate an audible warning intended to alert patients and their carers of depleting oxygen pressure levels. The device is designed to interface with portable medical oxygen cylinders and their pressure regulators. It implements a spring-loaded diaphragm mechanism, which opens a vent when the pressure level in the cylinder drops below a pre-set level of 15 bars (1.5 MPa). The gas then passes through a nozzle incorporating an orifice, thus generating an audible whistling sound. The proposed device is compact and cost effective in terms of manufacture and power consumption.

机译：本文介绍了与医用氧气瓶配合使用的氧气低压警报器的设计和评估。依靠便携式高压氧气瓶供氧的患者依靠工作人员保持警惕，以确保氧气瓶中的氧气量不会降至临界水平以下，从而危及他们的安全。为了将此类风险降到最低，开发了一种低成本，机械驱动，易于接口的低压警报器，以产生可听见的警报，旨在向患者及其护理人员警告氧气消耗水平降低。该设备旨在与便携式医用氧气瓶及其压力调节器连接。它实现了一个弹簧加载的隔膜机构，当气缸中的压力水平降至15 bar（1.5 MPa）的预设水平以下时，该机构会打开通风孔。然后，气体通过带有孔口的喷嘴，从而产生可听见的啸叫声。所提出的设备在制造和功耗方面是紧凑的并且成本有效的。

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来源
《The 7th International Conference on Appropriate Healthcare Technologies for Developing Countries.》|2012年|p.1-4|共4页
会议地点 London(GB)
作者
Muhammad H.B.; Carpanen D.; Hassani A.;
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作者单位

Dept. of Comput. amp'';

'' Technol., Anglia Ruskin Univ., Chelmsford, UK;

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会议组织
原文格式 PDF
正文语种 eng
中图分类计算技术、计算机技术;计算技术、计算机技术;
关键词
medical oxygen cylinder; pressure alarm; pressure monitoring;

机译：医用氧气瓶;压力报警;压力监测;;

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A low pressure alarm device for medical oxygen cylinders: A description of a prototype

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