自行下体负压训练器的研制

Development of Self-generating Lower Body Negative Pressure Device

目的研制一种自行下体负压训练器。方法自行下体负压训练器由若干环形钢圈及涂胶布材料构成的密闭完整的空腔壳体 ,可上下随意伸缩。上表面安装有单向排气阀门、可调进气阀门、把手及肩带。沿筒体纵轴进行屈 伸膝关节运动 ,使之被动扩张产生负压。结果进气阀门完全关闭、打开 1 4、1 2至完全打开时 ,训练器负压峰值逐渐降低 ,分别为 - 5 8、- 46、- 38和 - 2 6mmHg。结论自行下体负压训练器集体育锻炼和下体负压于一体 ,安全可靠 ,使用方便 。

Objective To develop a kind of self generating lower body negative pressure device. Method The device consists of a flexible bellows, reinforced by several steel rings and sealed by gasproof adhesive plaster . An adjustable valve, a one way flap valve, shoulder straps and handles are incorporated on the top of the bellows. The user′s lower body was contained in the bellows. As the user′s legs were extended, the bellows was elongated and the air pressure in it decreased. Result Negative pressures of -58, -46, -38 and -26 mmHg respectively was created with the adjustable inlet valve completely closed, one quarter open, half open, or fully open. Conclusion This self generating lower body negative pressure device combines exercise and LBNP into one thing and is safe and easy to use. It might be used in preventing cardiovascular deconditioning during spaceflight or for anti G training of pilots.