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相关概念视频

Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

778
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
778

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相关实验视频

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Measurement of Dynamic Force Acted on Water Strider Leg Jumping Upward by the PVDF Film Sensor
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一个灵活的PVDF传感器用于力心电图.

Salvatore Parlato1, Jessica Centracchio1, Eliana Cinotti1

  • 1Department of Electrical Engineering and Information Technologies, University of Naples Federico II, Via Claudio, 21, 80125 Naples, Italy.

Sensors (Basel, Switzerland)
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概括
此摘要是机器生成的。

这项研究引入了一种灵活的聚乙烯化物 (PVDF) 强力心电图 (FCG) 传感器,为传统的压电酸 (PZT) 传感器提供了一种舒适和安全的替代方案. 新的PVDF传感器准确地捕获心脏和呼吸系统的振动,用于可穿戴健康监测.

关键词:
心脏监测是指对心脏进行监测.强力传感器 强力传感器强力心脏图谱 强力心脏图谱心率是指心率是如何发生的.压电传感器 压电传感器这是一个pvdf传感器.呼吸系统监测 呼吸系统监测呼吸速率 呼吸速率 呼吸速率 呼吸速率地震心脏学图 (seismocardiography) 是一种心脏学图.模板匹配的匹配方式

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科学领域:

  • 生物医学工程 生物医学工程
  • 可穿戴健康技术的可穿戴健康技术
  • 传感器开发 传感器开发

背景情况:

  • 强力心脏图 (FCG) 记录了来自心脏和呼吸活动的机械胸壁振动.
  • 传统的FCG使用压电-酸 (PZT) 传感器,而这些传感器在长时间使用时缺乏灵活性和舒适性.
  • 需要灵活,生物相容的传感器来进行先进的可穿戴心肺监测.

研究的目的:

  • 开发和评估使用聚乙烯化物 (PVDF) 传感器的灵活FCG传感器.
  • 为了将PVDF传感器的性能与已建立的PZT FCG,地震心电图 (SCG) 和心电图 (PCG) 传感器进行比较.
  • 评估PVDF传感器在测量心跳间隔 (IBI) 和呼吸间隔 (IBRI) 中的准确性.

主要方法:

  • 使用压电聚乙烯化物 (PVDF) 转换器制造了一种新的灵活FCG传感器.
  • 通过使用PVDF传感器,PZT传感器,加速度计SCG传感器和PCG电子耳机镜,从35名健康受试者获得了同时记录.
  • 对IBI和呼吸间隔 (IBrI) 估计的信号形态和精度与参考心电图 (ECG) 和电阻呼吸带 (ERB) 测量进行了比较.

主要成果:

  • PVDF传感器与PZT传感器具有很高的信号相似性 (中位交叉相关性为0.96) 以及与SCG (0.85) 和PCG (0.80) 信号的良好相关性.
  • 在估计IBI (R2 > 0.99,LoA [-5.30; 5.00] ms) 和IBrIs (R2 > 0.96,LoA [-0.510; 0.513] s) 方面,PVDF传感器取得了极好的准确性.
  • 与刚性PZT传感器相比,灵活的PVDF传感器提供了更高的舒适性和生物相容性.

结论:

  • 灵活的PVDF FCG传感器是一种可行的,高性能替代传统的PZT传感器.
  • 它的灵活性和无成分使它成为舒适,安全和准确的可穿戴心肺监测应用的理想选择.
  • 这项技术提升了不引人注目的长期健康跟踪的潜力.