A Low-Power Method for Realizing Mode Inversion of Implantable Pacemaker

Abstract

The present invention discloses a low power consumption method for realization of a mode inverse conversion of an implantable pacemaker. The low power consumption method provided by the invention comprises: when a patient has an atrial fibrillation symptom, the implantable pacemaker works in a DDI mode, an atrium perceptive function is opened in the VA interval, and the PVARP is extended at the moment of each ventricular event; in each VA interval of the cardiac cycle, the patient's AA interval values are acquired by the implantable pacemaker, and the acquired patient's AA interval values are compared with the mode inversion frequency intervals; when the AA interval values are larger than the mode inversion frequency intervals, the patient's atrial rate is lower than the preset atrial rate, and the event of the patient's atrial rate being lower than the preset atrial rate is recorded as a low atrial rate event; and when the number of the low atrial rate events is larger than or equal to the preset threshold values in a preset time, the atrial fibrillation stops, and the implantable pacemaker jumps back to the DDD mode followed by the atrium. According to the invention, the mode conversion of the implantable pacemaker from the DDI mode to the DDD mode is realized, and the service life is relatively long.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a low power consumption method for realizing reverse conversion of implantable cardiac pacemaker modes. Background technique [0002] After more than 50 years of development, the pacing function is no longer the only function of implantable cardiac pacemakers. In order to improve the quality of life of the vast number of patients, various diagnostic techniques related to cardiac arrhythmias have been introduced into cardiac pacemakers. The sinoatrial node is the source of excitement in the normal heart, which is transmitted to the atrium and ventricle in turn through the conduction system, causing the contraction and expansion of the heart and supplying blood to the whole body. Arrhythmia occurs when the excitation of the sinoatrial node is abnormal, the excitation originates from other cardiomyocytes, or the conduction system of the excitation is abnormal. Atrial fibrill...

AI Technical Summary

Problems solved by technology

Compared with the first solution, the second solution is more rigorous, but it undoubtedly makes the entire implementation process very cumbersome, resulting in greater power consumption

[0006] Additionally, from figure 1 It can also be seen from the figure that when the pacemaker works in DDI mode, the AV interval is generally relatively large, which means that turning on the atrial sensing function in the AV interval will consume more power, thus consuming more power invisibly. Unnecessary power consumption, shortening the life of the pacemaker

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