基于医用压缩空气供气的防褥疮气垫床充气装置的设计

Design of inflatable bed aerator for bedsore prevention based on medical compressed air supply

目的:针对现有的防褥疮气垫床充气泵的弊端与不足,设计一种可替代传统气垫床充气泵的充气装置。方法 :该装置以MCS-51单片机微控制单元(micro contron unit,MCU)为核心,利用压缩空气作为气源,主要由主控制模块、电源电路、压力检测模块、液晶显示驱动模块、按键模块、实时时钟模块及报警电路等构成。结果:该装置可达到与传统充气泵一样的充气效果,而且减少了充气泵的噪声对患者和医护人员的影响,对危重患者的褥疮防治效果更佳。结论:该装置结构简单、使用方便、性能稳定,能交替对2张气垫床充气,且能及时对故障进行报警,有一定的实用价值。

Objective To design an inflatable bed aerator to replace the traditional inflator pump. Methods The aerator used MCS-51 SCM micro control unit as the core component and compressed air as the air source, which was composed of the modules for main control, power supply, air pressure detection, liquid crystal display, button as well as real-time clock and alarming. Results The aerator gained the same efficacy as the traditional inflator pump, while the noise was decreased to the patient and medical staffs, which behaved particularly well for the bedsore prevention of the critical patient. Conclusion The aerator has simple structure, easy operation and high stability, which can be used for the inflation of two air cushions simultaneously and for timely alarming against failures, and thus is worthy promoting practically.