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Apparatus for identifying sick sinus syndrome in implantable cardiac monitoring devices

A technology for sick sinus syndrome, monitoring equipment, used in cardiac stimulators, cardiac defibrillators, applications, etc.

Active Publication Date: 2020-09-22
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The AV node will be bombarded by frequent and irregular atrial activation, but will conduct depolarizing signals only when the AV node should not

Method used

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  • Apparatus for identifying sick sinus syndrome in implantable cardiac monitoring devices
  • Apparatus for identifying sick sinus syndrome in implantable cardiac monitoring devices
  • Apparatus for identifying sick sinus syndrome in implantable cardiac monitoring devices

Examples

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Embodiment Construction

[0029] In the following description, reference is made to illustrative embodiments for performing the methods described herein. It is understood that other embodiments may be utilized without departing from the scope of the present disclosure.

[0030] The methods presented herein can be embodied in software, hardware or firmware in an implantable or external medical device. Such devices include implantable monitoring devices with cardiac EGM / ECG monitoring capabilities and associated EGM / ECG sensing electrodes, which may be intracardiac, epicardial, or subcutaneous. Such a device may have at least two electrodes, a plurality of electrodes, at least a plurality of electrodes or two electrodes.

[0031] The methods described herein can also be incorporated into implantable medical devices with therapy delivery capabilities, such as single or biventricular pacing systems or ICDs that sense R-waves in the ventricles and deliver electrical stimulation therapy to the ventricles ....

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PUM

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Abstract

A cardiac monitoring device for determining the occurrence of a sick sinus syndrome condition in a patient, the cardiac monitoring device comprising: electrodes for sensing cardiac signals; a sensing module electrically coupled to the electrodes, the sensing module having circuitry positioned therein to receive the sensed cardiac signal; and a processor coupled to the sensing module and configured to: respond to determining RR interval variability during a RR interval variability session from the sensed cardiac signal; determining whether a P wave occurs during the RR interval variability session; determining whether a disease condition is met in response to the occurrence of a P wave. a sinus index; incrementing a sick sinus count in response to meeting the sick sinus index; determining whether a sick sinus burden is met in response to incrementing the sick sinus count; and determining a sick sinus in response to satisfying the sick sinus burden occurrence of the syndrome.

Description

technical field [0001] The present disclosure relates generally to implantable medical devices, and in particular to a method and apparatus for identifying sick sinus syndrome in an implantable cardiac monitoring device. Background technique [0002] During normal sinus rhythm (NSR), the heartbeat is regulated by electrical signals generated by the sinoatrial (SA) node located in the wall of the right atrium. Each atrial depolarization signal generated by the SA node spreads over the atria (causing depolarization and contraction of the atria) and reaches the atrioventricular (A-V) node. The A-V node responds by propagating ventricular depolarizing signals through the His bundle of the ventricular septum and subsequently to the bundle branches and Purkinje muscle fibers of the right and left ventricles. [0003] Atrial tachyarrhythmias include unorganized forms of atrial fibrillation and various degrees of organized atrial tachycardia, including atrial flutter. Atrial fibri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00A61B5/04A61B5/042A61B5/0452A61B5/0456A61B5/046A61N1/362A61N1/365A61N1/39A61B5/352A61B5/361A61B5/363
CPCA61B5/686A61N1/3624A61N1/36507A61N1/36592A61N1/395A61N1/3987A61B5/316A61B5/24A61B5/287A61B5/352A61B5/361A61B5/363A61B5/349
Inventor S·萨卡
Owner MEDTRONIC INC
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