Implementable medical equipment with ventricular tachycardia diagnosis function

Abstract

The invention relates to implementable medical equipment with a ventricular tachycardia diagnosis function. According to the implementable medical equipment with the ventricular tachycardia diagnosisfunction, ventricular tachycardia counting and template matching algorithms are combined, and heart rate suddenness judgement and multistage ventricular tachycardia counting thresholds are set; ventricular tachycardia counting is conducted if a sudden heart rate is acquired, and when a ventricular tachycardia count value reaches a sampling threshold, QRS waveform sampling is conducted; when the ventricular tachycardia count value reaches a matching threshold, sampled real-time heart rate QRS waveforms match sinus heart rate QRS waveform templates; and when the ventricular tachycardia count value reaches a diagnosis threshold, if the number of sampled QRS waveforms which cannot match QRS waveform templates reaches a ventricular tachycardia threshold, ventricular tachycardia is diagnosed. Bymeans of the scheme, supraventricular tachycardia and ventricular tachycardia can be distinguished, so that therapeutic errors are prevented.

Description

technical field [0001] The invention belongs to the field of medical equipment, in particular to the improvement of implanted medical equipment with the function of diagnosing ventricular tachycardia. Background technique [0002] An implanted medical device, such as an ICD implantable cardiac defibrillator (ICD) or implantable cardiac monitor (ICM) or cardiac pacemaker (cardiac pacemaker), senses ECG signals. And diagnose cardiac events through ECG signals, and provide treatment if necessary. For example, ICD is connected to myocardial tissue through wires, senses the inner electrical signal, and diagnoses malignant cardiac events such as ventricular fibrillation and ventricular tachycardia through the inner electrical signal. In the process of ventricular tachycardia diagnosis, it is necessary to distinguish between ventricular tachycardia and supraventricular tachycardia, because supraventricular tachycardia does not require treatment, and ventricular tachycardia require...

AI Technical Summary

Problems solved by technology

Mistreatment of supraventricular tachycardia is possible if the distinction between ventricular tachycardia and supraventricular tachycardia is not possible

Mistreatment not only causes unnecessary pain to patients, but also wastes the energy of implanted medical devices and reduces the life of implanted devices

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