一种使用压力计技术持续监测血压的新型可穿戴设备
Justin P McMurray1, Aubrey DeVries1, Kendall Frazee1
1Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA.
Biosensors
|July 25, 2025
概括
一个新的可穿戴设备使用张力计进行连续,准确的血压 (BP) 监测,克服了袖口和其他可穿戴BP系统的局限性. 这项技术为日常使用提供了更好的舒适性和可靠性.
科学领域:
- 生物医学工程 生物医学工程
- 心血管技术的心血管技术
- 可穿戴式传感器 穿戴式传感器
背景情况:
- 心血管疾病 (CVD) 是全球主要的死亡原因,高血压影响超过10亿人.
- 目前的非侵入性血压 (BP) 监测方法,如袖子和一些可穿戴设备 (光电解压,生物阻抗),具有包括不适,不准确和缺乏持续监测在内的局限性.
- 现有的可穿戴BP技术面临着皮肤色调和BMI变异性 (PPG) 或电极接触和可重复使用性 (BIOZ) 的挑战.
研究的目的:
- 开发和验证一种基于压力计的新型可穿戴设备,用于连续,准确和非侵入性血压 (BP) 测量.
- 解决当前BP监测技术的局限性,包括不适,放置错误和对生理变异的易感性.
- 创建一个用户友好,可重复使用和节能可穿戴的BP解决方案,适合长期日常使用.
主要方法:
- 开发一种新型可穿戴设备,使用基于张力计的双传感器系统直接量化压力.
- 实施组织变形和外部力量的补偿机制,以提高测量精度.
- 在动态条件下的10名受试者中,使用一种新的腿部按压协议验证设备的性能,并将结果与Finapres设备进行比较.
主要成果:
- 基于张力计的可穿戴设备在血压测量中实现了高精度,在动态条件下平均绝对误差为2.45 ± 3.99 mmHg (心缩) 和1.59 ± 2.08 mmHg (腹缩).
- 与Finapres系统相比,该设备表现出增强的稳定性和减少运动引起的噪声.
- 可穿戴的BP设备被证明是可重复使用,节能,舒适的长期日常使用,独立于皮肤色调.
结论:
- 这种基于压力计的新型可穿戴血压设备在持续的实时血压监测方面取得了重大进展.
- 这项技术克服了现有的非侵入性BP系统的关键局限性,在没有电极和独立于用户特定因素的情况下提供准确可靠的测量.
- 开发的设备为舒适的,长期的日常管理和监测高血压和心血管健康提供了一个有前途的解决方案.
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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01:21Sites for measruring blood pressure
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Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
The Brachial Artery: Primary Site for Blood Pressure Measurement
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01:17Measurement of Blood Pressure
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Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
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01:19Assessing Blood pressure using a doppler ultrasound
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To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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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.
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.
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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01:15Assessment of blood pressure in brachial artery(one-step method)
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This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
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