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Oscillometric non-invasive blood pressure measurements in patients experiencing abnormal heartbeats

A patient, blood pressure technology, applied in the field of improving the accuracy of non-invasive blood pressure measurement

Active Publication Date: 2014-03-19
DRAGERWERK AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the success of non-invasive blood pressure measurement in patients experiencing abnormal heartbeats, especially arrhythmias, remains a major issue

Method used

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  • Oscillometric non-invasive blood pressure measurements in patients experiencing abnormal heartbeats
  • Oscillometric non-invasive blood pressure measurements in patients experiencing abnormal heartbeats
  • Oscillometric non-invasive blood pressure measurements in patients experiencing abnormal heartbeats

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Embodiment Construction

[0021] Routine non-invasive blood pressure (NIBP) monitoring is limited by the monitor's ability to reliably align positively detected oscillatory pulses with normal heartbeats. Normal cardiac patients (eg, patients not experiencing arrhythmias or abnormal pulses) produce pressure oscillation pulses that are generally equal to each other, which can be stored into a profile and fit to a curve, providing very accurate blood pressure Measurement. In contrast, patients with abnormal heartbeats tend to have altered pressure oscillation profile shapes, such that blood pressure measurements are less accurate when fitting a normal Gaussian curve.

[0022] Described herein are noninvasive blood pressure monitor systems, devices, articles, and methods for use with patients experiencing abnormal heartbeats. The systems, devices, articles and methods use detected electrocardiogram data to filter out abnormal pressure oscillation pulses from detected NIBP pulses. Electrocardiogram (ECG o...

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Abstract

Disclosed is a method for implementation by one or more data processors including acquiring noninvasive blood pressure data using an inflatable cuff applied around a portion of a patient by inflating the cuff to a pressure above the patient's systolic blood pressure, and detecting a first oscillation pulse within the cuff during a deflation step. The method also includes acquiring electrocardiogram (ECG) data from the patient by detecting an ECG waveform corresponding to a first heartbeat using an ECG lead coupled to the patient, classifying the ECG waveform as normal or not normal, aligning, the first oscillation pulse to the ECG waveform corresponding to the first heartbeat if the ECG waveform is classified normal or rejecting the first oscillation pulse if the ECG waveform is classified not normal, and calculating the blood pressure using the aligned first oscillation pulse. Related apparatus, systems, methods and / or articles are described.

Description

[0001] related application [0002] Pursuant to 35 U.S.C. §119(e), this patent application claims the benefit of a patent application filed on April 28, 2011 and entitled "Method for Improve Accuracy of Non-Invasive Blood Pressure Measurements in Arrhythmia Patients Using ECG Beat Class Information and System Timing Between NIBP and ECG (Methods for Improving the Accuracy of Non-invasive Blood Pressure Measurements in Arrhythmia Patients Using ECG Beat Classification Information and a System for Synchronization Between NIBP and ECG)," U.S. Provisional Patent Application Serial No. 61 / 479,999, which The disclosure of the application is hereby incorporated by reference in its entirety. technical field [0003] The subject matter described herein relates generally to the field of medical devices, and more particularly to devices, systems, articles, and methods for improving the accuracy of noninvasive blood pressure measurements. Background technique [0004] Automated blood p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0452A61B5/022A61B5/361A61B5/363A61B5/366
CPCA61B5/0464A61B5/02028A61B5/046A61B5/04012A61B5/04525A61B5/02116A61B5/0408A61B5/02225A61B5/0472A61B5/35A61B5/361A61B5/363A61B5/25A61B5/316A61B5/366
Inventor 陈宇M·M·艾尔-高奇张哲
Owner DRAGERWERK AG