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-  2017 

便携式慢呼吸训练降压仪的设计

DOI: doi:10.7507/1001-5515.201605026

Keywords: 高血压, 慢呼吸训练, 降压仪, 便携式

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Abstract:

临床研究证实缓慢呼吸具有显著降低血压的疗效。本文基于此原理设计了一种便携式慢呼吸训练降压仪。降压仪采用微型变极距电容传感器采集呼吸信号,以 STM32 为主控芯片,用 WT588D 语音芯片实现语音、音乐引导慢呼吸训练,并在 3.5 寸彩屏上实现呼吸状态指引。针对患者难以适应慢呼吸训练的问题,提出了基于反馈调节的智能引导呼吸算法来训练患者慢呼吸。10 名高血压患者使用本仪器进行了累计 100 次慢呼吸训练,结果表明:随着训练次数增加,患者呼吸率从(15.16±0.92)次/分降低到(9.40±0.29)次/分,同时呼吸率低于 8 次/分的时间占总治疗时间的比例也从 0.079±0.017 升高到 0.392±0.019。因此,本研究设计的降压仪能有效引导高血压患者进行慢呼吸训练

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