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Method and device of hardware for capturing and picking up pacing impulse signal in HOLTER system

A pacing signal and extraction method technology, applied in the field of medical instruments, can solve the problems of many system resources and storage resources, short sampling time, and wide range of pacing pulses, and achieves the effect of high efficiency and saving storage space.

Inactive Publication Date: 2003-07-23
NEUSOFT MEDICAL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are currently two methods for the detection and recording of pacing signals: one is to record high sampling points on a certain channel or several channels of the HOLTER recorder, generally more than 3000 points / second, and then keep the sampling points after ticking. The highest value ensures that the vertex of the pacing signal is not lost and stored in the memory; one is that the signals collected on the body surface pass through the detection circuit of the ECG signal and the pacing signal respectively, and decide to follow the ECG signal or the pacing signal according to the judgment result. The sampling rate of the signal is sampled, the sampling rate of the pacing signal is higher, but the sampling time is short, and the range of capturing the pacing pulse is not wide
In the final analysis, these two methods still rely on sampling and recording pacing signals, which occupy a lot of system resources and storage resources.

Method used

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  • Method and device of hardware for capturing and picking up pacing impulse signal in HOLTER system
  • Method and device of hardware for capturing and picking up pacing impulse signal in HOLTER system
  • Method and device of hardware for capturing and picking up pacing impulse signal in HOLTER system

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Embodiment Construction

[0011] Device of the present invention see figure 2 , the body surface signal processing and extraction circuit impedance transformation U1, the output of the second-order high-pass filter circuit through C1, C2, R2, R3, R4, R5, U2 is sent to the amplification circuit composed of U3, C3, R6, R7, R8, after G1, G2, R9, R10, R11, D1, D2 are sent to the gate control circuit <2ms after adjusting the polarity and level conversion, and are also sent to the AND gate of U5. The pacing signal is only when the gate is opened within <2ms able to pass.

[0012] The method of the present invention see figure 1 , through the body surface ECG signal detected by the body surface, which contains ECG, pacing and EMG signals, the body surface signal is sent to the high-pass filter circuit (A), and the ECG and EMG signals are filtered Filter out, and send the obtained pacing signal to the lower amplifier circuit (B). The amplified pacing signal is adjusted in polarity through (C), and then leve...

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Abstract

A method and device for capturing and extracting the pacing signals by hardware in HDLTER system features that the signals acquired from body surface pass through a hardware circuit to filter out the cardioelectric and electromyographic signals to detect the pacing signal, whose position is then recorded. Its advantages are simple but practical method, high accuracy and efficiency and saving memory space.

Description

Technical field [0001] The invention belongs to the technical field of medical instruments, and relates to a method and a device for capturing and extracting pacing signals by using hardware means in a HOLTER system. Background technique [0002] The HOLTER system is currently widely used in the field of medical instruments and has become a routine clinical inspection equipment. It can not only detect heart diseases early, such as asymptomatic myocardial ischemia and transient, transient arrhythmia, some HOLTER also has the function of recording pacing signals, so that doctors can understand the function and use of pacemakers. There are currently two methods for the detection and recording of pacing signals: one is to record high sampling points on a certain channel or several channels of the HOLTER recorder, generally more than 3000 points / second, and then keep the sampling points after ticking. The highest value ensures that the vertex of the pacing signal is not lost and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00G06F17/00G06F19/00
Inventor 卢树起王长津
Owner NEUSOFT MEDICAL SYST CO LTD