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相关概念视频

Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

786
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...
786
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

1.2K
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:
1.2K
Assessment of blood pressure in brachial artery(one-step method)01:15

Assessment of blood pressure in brachial artery(one-step method)

550
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
550
Voltammetric Techniques: Pulse Voltammetry01:17

Voltammetric Techniques: Pulse Voltammetry

387
Differential-pulse voltammetry (DPV) is a type of voltammetry that involves applying a series of voltage pulses to an electrochemical cell while measuring the resulting current. In DPV, the differential pulse or small potential pulses are superimposed on a linear potential sweep. The magnitude of these pulses is typically small, often in the millivolt range. Each voltage pulse lasts a short duration, usually in the order of a few milliseconds, and is applied at regular intervals along the...
387
Assessment of blood pressure in brachial artery(two-step method)01:23

Assessment of blood pressure in brachial artery(two-step method)

644
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
644
Assessment of the Cardiovascular System III: Palpation01:27

Assessment of the Cardiovascular System III: Palpation

170
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
170

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相关实验视频

Updated: May 24, 2025

Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects
07:32

Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

Published on: September 1, 2016

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使用接触式皮埃佐传感器获取状静脉脉冲波形:试点研究

Navya Rose George, Nimmi Sudarsan, Rahul Manoj

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |March 5, 2025
    PubMed
    概括

    这项研究引入了一种用于非侵入性关静脉脉冲 (JVP) 测量的新型压电传感器,为侵入性方法提供了可行的替代方案. 开发的系统显示了高保真度信号采集和对超声波的准确验证,为远程心脏监测铺平了道路.

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    Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
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    Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge
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    Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge

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    相关实验视频

    Last Updated: May 24, 2025

    Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects
    07:32

    Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

    Published on: September 1, 2016

    12.6K
    Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
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    Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge
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    Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge

    Published on: January 20, 2023

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    科学领域:

    • 生物医学工程 生物医学工程
    • 心血管生理学心血管生理学
    • 医疗器械开发 医疗器械开发

    背景情况:

    • 状静脉脉冲 (JVP) 对于评估右心房心血管异常至关重要.
    • 目前的黄金标准 (中央静脉导管) 是侵入性的,仅限于重症监护.
    • 现有的非侵入性方法 (超声波,光聚体图) 面临着可用性挑战.

    研究的目的:

    • 为了证明使用接触压电传感器用于非侵入性JVP测量的可行性.
    • 为了验证压电传感器的精度与参考超声波方法相比.
    • 利用这项技术探索心脏健康的门诊和自我测量的潜力.

    主要方法:

    • 采集了20名健康参与者的JVP信号,使用接触式压电传感器.
    • 与参考超声波方法相比,验证的压电JVP信号.
    • 开发了用于JVP周期分割和脉冲轮分析的算法.

    主要成果:

    • 实现了高保真度的JVP信号采集,分辨率为0.25ms.
    • 在压电和超声波方法之间证明了高相关性 (0.90) 和低RMSE (<0.35).
    • 评估 beat-to-beat JVP标记位置,最大变化系数为17%.

    结论:

    • 接触式压电传感器为直接测量JVP提供了一种可行的方法.
    • 这种非侵入性技术对未来的门诊和自我监测心脏查有希望.
    • 与超声波相比,进一步的进步可能会克服运动工件的限制.