Control of air-cell mattress for preventing pressure ulcer based on approximate anthropometric model

Inhyuk Moon, Sungjae Kang, G. Kim, M. Mun
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引用次数: 19

Abstract

Air mattress is now used widely to prevent the pressure ulcer by reducing the localized pressure peaks. In this paper an air-cell mattress and its pressure control method based on an approximate anthropometric model are presented. The air-cell mattress has eighteen cylindrical air cells made of porous material allowing air leakage to contribute in reducing the development of pressure ulcer by lowering the pressure peak, temperature and humidity. To determine an optimal air-cell pressure appropriate for each user, we divide the parts of the body into four sections such as head, trunk, hip, and leg. Then, the pressure of each section is independently calculated from the weight of each part based on the individual body height and weight and the approximate anthropometric model. Air supply system for the air-cell mattress is implemented by using four electronic solenoid valves and an air compressor, and it is driven by a real-time micro-controller. The experimental results for seven subjects shows that the proposed air-cell mattress is effective for the prevention of the pressure ulcer.
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基于近似人体测量模型的气垫防压性溃疡控制
气垫通过降低局部压力峰来预防压疮,目前已被广泛应用。本文介绍了一种基于近似人体测量模型的气孔床垫及其压力控制方法。空气细胞床垫有18个圆柱形空气细胞,由多孔材料制成,允许空气泄漏,通过降低压力峰值,温度和湿度,有助于减少压力溃疡的发展。为了确定适合每个用户的最佳气压,我们将身体的各个部分分为四个部分,如头部、躯干、臀部和腿部。然后,根据个人身高、体重和近似人体测量模型,由各部位的重量独立计算出各部位的压力。气囊床垫的送风系统由四个电子电磁阀和一个空气压缩机组成,由实时微控制器驱动。对7名受试者的实验结果表明,所提出的气垫对压疮的预防是有效的。
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