Automatic atrial pacing threshold searching method and circuit

An atrial pacing and threshold technology, applied in electrotherapy, cardiac stimulator, therapy, etc., can solve problems such as increasing atrial pacing frequency, and achieve the effect of avoiding atrial pacing threshold search

Active Publication Date: 2021-10-26
SHAANXI QINMING MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This application provides a method and circuit for automatic atrial pacing threshold search to solve the problem of increasing the atrial pacing frequency in the traditional way when performing automatic atrial pacing threshold search

Method used

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  • Automatic atrial pacing threshold searching method and circuit
  • Automatic atrial pacing threshold searching method and circuit
  • Automatic atrial pacing threshold searching method and circuit

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Embodiment Construction

[0067] In order to facilitate the description and understanding of the technical solution of the application, some abbreviations and other concepts involved in the application are firstly explained below.

[0068] As: atrial sensing;

[0069] Ap: atrial pacing;

[0070] Vs: Ventricular sensing;

[0071] Vp: ventricular pacing;

[0072] Ax: atrial event, representing As or Ap;

[0073] Vx: ventricular event, representing Vs or Vp;

[0074] Vx-Ap: interventricular period, including Vp-Ap interval and Vs-Ap interval;

[0075] Vx-As: interventricular period, including Vp-As interval and Vs-As interval;

[0076] Ax-Vx: atrioventricular interval, including As-Vs, Ap-Vp, As-Vp and Ap-Vs four intervals;

[0077] AV interval: atrioventricular interval;

[0078] VA interval: interventricular period;

[0079] AA Interval: the interval value between two atrial events;

[0080] VV interval: interval value between two ventricular events;

[0081] AER wave: the depolarization wave ...

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Abstract

The invention relates to an automatic atrial pacing threshold searching method and circuit, and the method comprises the steps: firstly obtaining the number of ventricular event occurrence times, the types of atrial events, a Vx-Ap interval average value and an Ax-Vx interval average value, and setting a proper adjustment self atrial searching margin value; comparing the acquired numerical value with a preset numerical value, judging an event type, and selecting to perform automatic atrial pacing threshold searching or encouraging an atrial event of a user, that is, the method can start or give up the automatic atrial pacing threshold searching without increasing the atrial pacing frequency after accurately identifying the heart rhythm, so that unnecessary atrial pace-making threshold searching is avoided, and automatic atrial pace-making threshold searching can be completed at a stable ventricular rate when necessary. The circuit comprises a basic heart rhythm detection unit and a self atrial rate searching unit, accurate recognition of heart rhythms is achieved through the circuit, and therefore automatic atrial pacing threshold searching is completed, or self atrial events are encouraged.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a method and circuit for automatic atrial pacing threshold search. Background technique [0002] Automatic implantable pulse generators can treat cardiac dysfunction caused by certain arrhythmias. In order to improve the quality of life of users, new automatic implantable pulse generators (including pacemakers, ICDs, CRTs, etc.) generally have The function of ventricular rate stabilization, the function of ventricular rate stabilization can prevent the user's ventricular rate from rising or falling sharply, thus effectively relieving the user's symptoms of palpitations. However, with the continuous improvement of the automatic function of implantable pulse generators, automatic atrial pacing The emergence of some functions such as threshold search violates the principle of stable ventricular rate. After the automatic atrial pacing threshold search function is activated at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/365
CPCA61N1/36592
Inventor 金华任江波陈小龙朱妙娜郝云龙
Owner SHAANXI QINMING MEDICAL CO LTD
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