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ECG signal adaptive filtering method and device

An adaptive filter and ECG signal technology, applied in the field of medical equipment, can solve the problems that the interference signal cannot be effectively suppressed and the interference cannot be effectively removed, and achieve the effect of small interference and reduced distortion

Active Publication Date: 2019-05-28
SHENZHEN COMEN MEDICAL INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide an ECG signal filter for the traditional ECG signal filtering that cannot effectively suppress the interference signals that are close to the frequency range of the ECG signal, and cannot effectively remove the interference on the ECG waveform signal in the body. Adaptive method and device

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  • ECG signal adaptive filtering method and device

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] Such as figure 1 As shown, in one embodiment, a kind of adaptive filtering method is provided, the method comprises:

[0055] Step S10: acquiring body surface ECG signals and internal body ECG signals.

[0056] Among them, in the traditional method, the most widely used method is to only obtain the ECG data in the body during the puncture process, without the ECG data of the body surface as a reference; deal with. Therefore, this method ...

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Abstract

The invention relates to a method for adaptively filtering electrocardiograph signals. The method includes acquiring the body surface electrocardiograph signals and the in-vivo electrocardiograph signals; detecting R-wave amplitude values of the in-vivo electrocardiograph signals and the body surface electrocardiograph signals and processing difference values to obtain noise reference signals in strong correlation with noise signals and weak correlation with the electrocardiograph signals; adaptively filtering and denoising the in-vivo electrocardiograph signals by the aid of the noise reference signals which are used as reference objects. The invention further relates to a device for adaptively filtering the electrocardiograph signals. The device comprises a signal acquiring device, a recursive filter, an adaptive filter and a weighted analyzer. The in-vivo electrocardiograph signals can be adaptively filtered and denoised by the device by the aid of the method.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method and device for self-adaptive filtering of electrocardiographic signals. Background technique [0002] During PICC (Peripherally Inserted Central Venous Catheters, central venous catheterization via peripheral venous puncture) medical staff usually use ECG (electrocardiogram, electrocardiogram) waveform-assisted positioning method, using the guide wire in the catheter as an electrode to obtain ECG waveforms in the body data. By observing the changes in the ECG waveform during the puncture, the medical staff can judge whether the catheter is accurately punctured to the junction of the superior vena cava and the right atrium. Perforation, myocardial perforation and other complications. [0003] During the puncture process, the guide wire is in a moving state in the vein, which will introduce interference from the electrode movement, and the blood flow in the vein ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00A61B5/0402A61B5/042
CPCA61B5/72A61B5/7203A61B5/7225A61B5/7235A61B5/283A61B5/318
Inventor 肖运洪李尔松王兴红邹海涛
Owner SHENZHEN COMEN MEDICAL INSTR