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A technology for cardiac arrest and ECG signals, applied in cardiac stimulation, cardiac defibrillator, artificial respiration, etc., can solve the problems that compression and defibrillation cannot be performed at the same time, and the physical and mental energy of cardiopulmonary resuscitation is high, which is conducive to self-help circulation. The effect of establishing, improving blood perfusion time and reducing difficulty
Active Publication Date: 2017-10-10
李城钰
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[0006] The present invention provides an integrated first aid device for sudden cardiac arrest. The present invention overcomes the disadvantages of traditional cardiopulmonary resuscitation, such as high physical exertion, compression and defibrillation cannot be performed at the same time, and comprehensively utilizes physiological signals for real-time electric shock defibrillation, chest compressions, and assisted breathing automation. ,
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Embodiment 1
[0039] A kind of cardiac arrest first aid integrated device, see figure 1 , the device includes: a microprocessor 1 , an external defibrillation module 2 , a chest compression module 3 , a breathing assistance module 4 , and a voice prompt module 5 .
[0040] The whole device is controlled by the microprocessor 1, operates the external defibrillation module 2, the external chest compression module 3, and the assisted breathing module 4 to provide first aid to the patient, and uses the voice prompt module 5 to instruct rescuers. Among them, the patient's physiological signals, pressing, and breathing related reference signals are uploaded to the microprocessor 1 by the integrated sensor in the corresponding module, and the microprocessor 1 analyzes and determines the next step.
[0041] The workflow of the whole device is as follows figure 2 As shown, after the rescuer places the patient in the correct position according to the voice prompt module 5, the first aid process is ...
Embodiment 2
[0050] Below in combination with specific calculation formulas and examples, the microprocessor 1 in Embodiment 1 performs interference noise filtering on ECG signals and the process of ECG rhythm type identification is further introduced, see the following description for details:
[0051] Since the chest compression process will introduce serious noise interference in the ECG, the ECG analysis algorithm cannot accurately classify the ECG rhythm. Therefore, the purpose of the embodiment of the present invention is to filter out the chest compression interference noise in the ECG signal , so that continuous chest compressions and electrocardiographic signal analysis before electrical defibrillation can be implemented simultaneously, without the need to pause chest compressions before implementing electrical defibrillation.
[0052] 1) With 250Hz as the sampling frequency, sample the ECG signal for 10s, with a total of 2500 sampling points;
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Abstract
The invention discloses a sudden cardiac arrest first-aid integrated device. The device comprises a microprocessor, an external chest compression module, a respiration assisting module and an external defibrillation module, wherein the microprocessor sends a work starting instruction to the external defibrillation module, the external chest compression module and the respiration assisting module at the same time; the external chest compression module and the respiration assisting module conduct external chest compression and assisted ventilation respectively in the proportion of 30:2; the external defibrillation module collects electrocardiogram signals, the microprocessor conducts interference noise filtering on the electrocardiogram signals, distinguishes ECG rhythm types and judges whether electric defibrillation can be conducted, and if yes, the microprocessor controls the external defibrillation module to automatically send out electric shock; in the whole analysis and electric shock process, continuous chest compression and electrocardiogram signal analysis before electric defibrillation are synchronously implemented, and people do not need to stop chest compression before electric defibrillation; the external chest compression module and the respiration assisting module carry out continuous chest compression and assisted ventilation. First-aid personnel can achieve cardio-pulmonary resuscitation one-click operation by using the device, the rescue difficulty is greatly reduced, and the survival rate of a sudden cardiac arrest patient is increased.
Description
technical field [0001] The invention relates to the field of first aid devices, in particular to an integrated first aid device for sudden cardiac arrest. Background technique [0002] Sudden cardiac arrest causes nearly one million deaths in our country every year, most of which occur outside the hospital. Cardiopulmonary resuscitation is the most effective treatment for patients with sudden cardiac arrest, mainly including three main links: chest compressions, artificial ventilation and electrical defibrillation. According to the requirements of the 2015 cardiopulmonary resuscitation guidelines, for patients with cardiac arrest, the frequency of chest compressions should be maintained at 100-120 times / min, the depth should be 5-6 cm, and 2 artificial ventilations should be given for every 30 chest compressions. ; When ventricular fibrillation occurs in the ECG signal, the electrical defibrillation is implemented in time. [0003] In the current out-of-hospital first aid,...
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