基于纸张的超容压传感器用于手腕动脉脉冲波形监测
Azmal Huda Chowdhury1, Borzooye Jafarizadeh1, Nezih Pala2
1Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, United States.
ACS applied materials & interfaces
|November 3, 2023
概括
这项研究介绍了一种低成本的基于组织纸的电容式压力传感器. 它提供高灵敏度和广泛的传感范围,非常适合准确检测动脉脉冲波形等生理信号.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 传感器技术 传感器技术
背景情况:
- 可穿戴式压力传感器需要高灵敏度和广泛的传感范围来进行生理监测.
- 实现高灵敏度和广泛的传感范围既具有挑战性,而且往往昂贵.
- 现有的高灵敏度传感器可能复杂且制造成本高.
研究的目的:
- 开发一个具有成本效益和易于生产的电容式压力传感器.
- 为了实现高灵敏度和广泛的传感范围,用于生理信号检测.
- 为了评估传感器适用于监测手腕动脉脉冲波形的适用性.
主要方法:
- 用纸质纸作为核心材料制造一个电容式压力传感器.
- 描述传感器的灵敏度,传感范围,响应时间和压力分辨率.
- 通过重复循环测试传感器的耐用性及其在捕获动脉脉冲波形的性能.
主要成果:
- 纸巾传感器显示出高线性灵敏度 (2.9 kPa-1从0-16 kPa和1.5 kPa-1从16-90 kPa).
- 在低压和高压下实现了0.2秒的快速响应时间和出色的压力分辨率.
- 成功捕捉了手腕动脉脉冲波形,并在5000次循环后保持了性能.
结论:
- 开发的纸巾传感器为高性能压力传感提供了简单,经济高效的解决方案.
- 它的特性使得它非常适合用于对动脉脉冲波形的非侵入性监测.
- 这项技术可以通过可访问的脉冲波形分析来帮助诊断心血管疾病.
相关概念视频
01:30Equipments Used To Measure Blood Pressure
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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...
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...
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01:16Pulse
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When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
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01:19Assessing Blood pressure using a doppler ultrasound
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01:21Sites for measruring blood pressure
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01:15Assessment of blood pressure in brachial artery(one-step method)
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01:28Special considerations while measuring blood pressure
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When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
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Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
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