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30 results about "Rhythm analysis" patented technology

Method and system for restricting ECG (Electrocardiogram) interference caused by cardio-pulmonary resuscitation and external defibrillator

ActiveCN104323769AOvercome the disadvantages of fixed value affecting the filtering effectSuppression of interfering componentsHeart defibrillatorsDiagnostic recording/measuringEcg signalProportional control
The invention discloses a method and system for restricting the ECG (Electrocardiogram) interference caused by cardio-pulmonary resuscitation and an external defibrillator, relating to the technical field of EGG detection. The method comprises the following steps: 1, acquiring an ECG signal and a voltage signal of a reference signal; 2, processing and analyzing the acquired ECG signal and voltage signal; 3, comparing the processed signals with a set value; 4, when the processed signal is greater than the set value, carrying out adaptive filtering; 5, when the processed signal is less than the set value, carrying out rhythm analysis; 6, processing and analyzing the signal subjected to adaptive filtering and returning to continuously execute the step 3. The method and system and the external defibrillator disclosed by the invention, the acquired ECG signal and the reference signal subjected to frequency domain analysis, and the energy of inference in the ECG signal and the proportion to the interference energy to the total energy of signals are calculated. The frequency of circulation filtering and the step length factor of adaptive filtering are controlled by using the proportion of the interference energy so as to realize dynamic adjustment of the filtering strength, the pushing interference element in the ECG signal is furthest restricted and the characteristics of the ECG signal are highlighted.
Owner:ARMY MEDICAL UNIV

Defibrillator control method and device and computer readable storage medium

The invention provides a defibrillator control method and device and a computer readable storage medium, the defibrillator control method comprises the steps that when a defibrillator is in a heart rhythm analysis state, electric shock condition judgment is carried out based on first heart rhythm data collected by an electrocardio collection electrode, and the electrocardio collection electrode is a dry electrode; if the first heart rhythm data is the shockable heart rhythm meeting the electric shock condition, a discharge electrode is triggered to enter an electrocardiogram collection state, and the discharge electrode is a metal electrode; and performing electric shock condition judgment again based on second heart rhythm data collected by the discharge electrode to obtain a final electric shock condition judgment result. Through the implementation of the scheme of the invention, the electrocardio acquisition electrode is firstly used for carrying out primary heart rhythm analysis, and then the discharge electrode is reused for carrying out secondary heart rhythm analysis, so that additional hardware cost is not needed, the accuracy of heart rhythm analysis is effectively improved, and the discharge response accuracy of the defibrillator is ensured.
Owner:VIVEST MEDICAL TECH CO LTD

Intelligent analysis method for voice dialogue based on soft switch technology

The invention relates to an intelligent analysis method for a voice dialogue based on a soft switch technology, which is characterized in that a first recognition module of a source soft switch transmits received input voice information to a first analysis module, the first analysis module parses the input voice information into a corresponding text, carries out rhythm analysis, syntactic analysis, voice analysis and pragmatic analysis on the input voice information and the text, converts the input voice information into corresponding virtual routing identification and transmits the virtual routing identification to a first forwarding module, the first forwarding module transmits the virtual routing identification to a destination soft switch which establishes connection with the source soft switch through an IP network, a second recognition module of the destination soft switch receives the virtual routing identification and then transmits the virtual routing identification to a second analysis module, and the second analysis module reversely parses the virtual routing identification into output voice information and then transmits the output voice information through a second conversion module. The intelligent analysis method has the advantages of accurate parsing and high user experience.
Owner:中科智云科技(珠海)有限公司

Device for automatically detecting pulse during cardiopulmonary resuscitation and detection method thereof

The invention discloses a device for automatically detecting pulse during cardiopulmonary resuscitation and a detection method thereof. A processor synchronously collects an acceleration signal and anelectrocardiosignal through an acceleration sensor and an electrocardiogram acquisition module, and the processor judges whether pressing exists in a time period corresponding to the signal by analyzing the collected acceleration signal. If no pressing exists, rhythm analysis is performed on the collected electrocardiosignal; and if the electrocardiosignal is rhythmic electrocardiogram, the electrocardiosignal and the acceleration signal are preprocessed. The processor calculates a cross correlation coefficient sequence of the electrocardiosignal and the acceleration signal according to the pre-processed electrocardiosignal and acceleration signal, extracts the maximum cross correlation coefficient and compares the maximum cross correlation coefficient with a set threshold value, and if the maximum cross correlation coefficient is greater than the set threshold value, the pulse exists. The pulse of patients can be automatically detected, the detection time is short, the accuracy rateis high, the cardiopulmonary resuscitation success rate is improved, and interference of a pressing action of a doctor on the pulse detection during the cardiopulmonary resuscitation is excluded.
Owner:ARMY MEDICAL UNIV

Method, system and external defibrillator for suppressing electrocardiographic interference caused by cardiopulmonary resuscitation

ActiveCN104323769BOvercome the disadvantages of fixed value affecting the filtering effectSuppression of interfering componentsHeart defibrillatorsDiagnostic recording/measuringEcg signalProportional control
The invention discloses a method and system for restricting the ECG (Electrocardiogram) interference caused by cardio-pulmonary resuscitation and an external defibrillator, relating to the technical field of EGG detection. The method comprises the following steps: 1, acquiring an ECG signal and a voltage signal of a reference signal; 2, processing and analyzing the acquired ECG signal and voltage signal; 3, comparing the processed signals with a set value; 4, when the processed signal is greater than the set value, carrying out adaptive filtering; 5, when the processed signal is less than the set value, carrying out rhythm analysis; 6, processing and analyzing the signal subjected to adaptive filtering and returning to continuously execute the step 3. The method and system and the external defibrillator disclosed by the invention, the acquired ECG signal and the reference signal subjected to frequency domain analysis, and the energy of inference in the ECG signal and the proportion to the interference energy to the total energy of signals are calculated. The frequency of circulation filtering and the step length factor of adaptive filtering are controlled by using the proportion of the interference energy so as to realize dynamic adjustment of the filtering strength, the pushing interference element in the ECG signal is furthest restricted and the characteristics of the ECG signal are highlighted.
Owner:ARMY MEDICAL UNIV

Device and method for automatically detecting pulse during cardiopulmonary resuscitation

The invention discloses a device for automatically detecting pulse during cardiopulmonary resuscitation and a detection method thereof. A processor synchronously collects an acceleration signal and an electrocardiogram signal through an acceleration sensor and an electrocardiogram acquisition module, and the processor analyzes the collected acceleration signal. It is judged whether there is a press in the time period corresponding to the signal, and if there is no press, the rhythm analysis is performed on the collected ECG signal, and if the ECG signal is a rhythmic ECG signal, the ECG signal and the acceleration signal are preprocessed. The processor calculates the cross-correlation coefficient sequence between the preprocessed ECG signal and the acceleration signal, extracts the maximum cross-correlation coefficient, and compares the maximum cross-correlation coefficient with the set threshold, and if it is greater than the set threshold, there is a pulse. It can automatically detect the patient's pulse, with short detection time and high accuracy, which improves the success rate of cardiopulmonary resuscitation and eliminates the interference of the doctor's pressing action on the pulse detection during the cardiopulmonary resuscitation process.
Owner:ARMY MEDICAL UNIV
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