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Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

2.6K
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...
2.6K
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

1.8K
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:
1.8K
Special considerations while measuring blood pressure01:28

Special considerations while measuring blood pressure

861
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.
861
Sites for measruring blood pressure01:21

Sites for measruring blood pressure

2.6K
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
2.6K
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

1.7K
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...
1.7K
Assessment of blood pressure in brachial artery(one-step method)01:15

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

745
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
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Related Experiment Video

Updated: Oct 10, 2025

Simultaneous Electrocardiography Recording and Invasive Blood Pressure Measurement in Rats
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Simultaneous Electrocardiography Recording and Invasive Blood Pressure Measurement in Rats

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Photoplethysmography Based Blood Pressure Monitoring Using the Senbiosys Ring.

Serj Haddad, Assim Boukhayma, Gilles Di Pietrantonio

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 11, 2021
    PubMed
    Summary
    This summary is machine-generated.

    This study validates a cuffless blood pressure monitoring (BPM) algorithm using photoplethysmography (PPG) signals. The PPG-BPM algorithm meets international accuracy standards for both systolic and diastolic blood pressure measurements.

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    Area of Science:

    • Biomedical Engineering
    • Cardiovascular Technology
    • Wearable Health Devices

    Background:

    • Continuous blood pressure monitoring is crucial for cardiovascular health management.
    • Traditional cuff-based methods are invasive and inconvenient for long-term monitoring.
    • Photoplethysmography (PPG) offers a potential non-invasive alternative for blood pressure estimation.

    Purpose of the Study:

    • To evaluate the accuracy of a novel cuffless blood pressure monitoring (PPG-BPM) algorithm.
    • To assess the performance of the PPG-BPM algorithm using ultra-low-power PPG signals from a wearable ring.
    • To determine if the algorithm meets established international accuracy standards for blood pressure devices.

    Main Methods:

    • Utilized an ultra-low-power photoplethysmography (PPG) sensor integrated into a wearable ring (Senbiosys Ring).
    • Collected continuous PPG data from six male subjects over 17 recording sessions (average duration 2.21 hours each).
    • Intermittently measured reference blood pressure (BP) using a standard brachial cuff (every 2-10 minutes) and compared with algorithm-derived BP estimates.

    Main Results:

    • The PPG-BPM algorithm demonstrated a mean difference of -0.28 ± 7.54 mmHg for systolic blood pressure (SBP).
    • The PPG-BPM algorithm showed a mean difference of -1.30 ± 7.18 mmHg for diastolic blood pressure (DBP).
    • The algorithm's accuracy for both SBP and DBP falls within the 5 ± 8 mmHg requirement of the ISO/ANSI/AAMI protocol.

    Conclusions:

    • The cuffless PPG-BPM algorithm provides accurate blood pressure measurements.
    • The wearable PPG sensor and algorithm combination is a viable tool for non-invasive blood pressure monitoring.
    • The validated algorithm meets stringent international accuracy standards, paving the way for clinical adoption.