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Updated: Jun 25, 2026

Simultaneous Electrocardiography Recording and Invasive Blood Pressure Measurement in Rats
Published on: January 31, 2019
[Research on the measuring method for invasive blood pressure and its effectiveness evaluation method]
Ji-Lun Ye1, Yun Deng, Yi-Wei Chen
1Shenzhen Mindray Biomedical Electronics Co., Ltd., Shenzhen, GuangDong Province 518057.
This study presents a new method for measuring invasive blood pressure (IBP) using SecWave technology. It establishes objective evaluation indexes for accuracy, ensuring reliable IBP monitoring.
Area of Science:
- Biomedical Engineering
- Medical Device Technology
- Physiological Monitoring
Background:
- Accurate invasive blood pressure (IBP) monitoring is critical for patient management in critical care.
- Existing methods for evaluating IBP measurement accuracy require standardized and objective assessment tools.
- SecWave technology offers a novel approach to IBP measurement.
Purpose of the Study:
- To introduce a novel measuring method for invasive blood pressure utilizing SecWave technology.
- To establish a testing methodology for evaluating the effectiveness of IBP measurements.
- To define quantified indexes for objective accuracy assessment of IBP devices.
Main Methods:
- Development of an IBP measuring method based on SecWave technology.
- Creation of a testing method employing an IBP database and a simulator.
- Definition of accuracy evaluation indexes including static pressure accuracy, dynamic pressure pulse wave recognition accuracy, pulse rate, and response time.
Main Results:
- The proposed method provides a framework for objective evaluation of IBP measurements.
- Quantified indexes allow for precise assessment of device performance.
- The SecWave technology-based method demonstrates potential for enhanced IBP monitoring accuracy.
Conclusions:
- The developed SecWave technology-based method and testing protocol offer a reliable approach for invasive blood pressure measurement.
- Objective evaluation indexes provide a crucial reference for assessing IBP device accuracy.
- This work contributes to improving the reliability and objectivity of invasive blood pressure monitoring systems.
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Equipments Used To Measure Blood Pressure
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...
Assessment of blood pressure in brachial artery(two-step method)
Sites for measuring blood pressure
The Brachial Artery: Primary Site for Blood Pressure Measurement
Measurement of Blood Pressure
Special considerations while measuring blood pressure
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.
Assessment of blood pressure in brachial artery(one-step method)
Prepare for the Procedure:

