Atrial fibrillation detection

A technology for detecting circuits and heart activity, applied in cardiac defibrillators, cardiac stimulators, diagnostic recording/measurement, etc., which can solve problems that do not include atrial sensing capabilities, excluding atrial sensing capabilities, etc.

Active Publication Date: 2018-01-02
CARDIAC PACEMAKERS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] CFM devices may be implantable, but in some cases may not include specialized atrial sensing capabilities
Additionally, some diagnostic-only implantable, wearable, and handheld devices do not include dedicated atrial sensing capabilities

Method used

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  • Atrial fibrillation detection
  • Atrial fibrillation detection
  • Atrial fibrillation detection

Examples

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Embodiment Construction

[0025] Ambulatory medical devices may include one or more features, structures, methods, or combinations thereof described herein. For example, a cardiac monitor or cardiac stimulator may be implemented to include one or more of the advantageous features or processes described below. It is intended that such a monitor, stimulator or other mobile device need not include all of the features described herein, but may be implemented to include selected features that provide unique structure or function. Such devices can be implemented to provide various therapeutic or diagnostic functions.

[0026] figure 1 is an illustration of an example of portions of system 100 including IMD 105 . Examples of IMD 105 include, but are not limited to, pacemakers, cardioverters, defibrillators, and other cardiac monitoring and therapy delivery devices that include cardiac devices including one or more neurostimulation devices, medications, drug Delivery system or other therapy or work in coord...

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Abstract

An apparatus includes a sensing circuit configured to generate a sensed physiological signal representative of cardiac activity of a subject, and an arrhythmia detection circuit. The arrhythmia detection circuit is configured to monitor information corresponding to ventricular depolarization (V-V) intervals using the sensed physiological signal; determine a V-V interval distribution; determine a heart rate density index (HRDI) as a portion of samples of the V-V interval distribution corresponding to a V-V interval occurring most often in the distribution; and generate an indication of atrial fibrillation (AF) using the HRDI.

Description

[0001] priority claim [0002] This application claims the benefit of priority under 35 U.S.C. §119(e) of U.S. Provisional Patent Application Serial No. 62 / 142,184, filed April 2, 2015, the entire contents of which are incorporated herein by reference. Background technique [0003] Mobile medical devices include implantable medical devices (IMDs), wearable medical devices, handheld medical devices, and other medical devices. Some examples of IMDs include cardiac function management (CFM) devices such as implantable pacemakers, implantable cardioverter-defibrillators (ICDs), subcutaneous implantable cardioverter-defibrillators (S-ICDs), Cardiac resynchronization therapy devices (CRTs) and devices comprising combinations of these capabilities. These devices may be used to treat a patient or subject using electrical or other therapy, or to assist a physician or caregiver in patient diagnosis by internally monitoring the patient's condition. [0004] Some implantable medical dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/0245A61B5/042A61B5/0432A61B5/046A61B5/0464A61N1/362A61N1/39A61B5/361A61B5/296A61B5/363
CPCA61N1/3962A61N1/3621A61B5/0031A61B5/0245A61B5/686A61N1/39622A61B5/283A61B5/361A61B5/363A61B5/333A61N1/3956A61N1/3987
Inventor 戴维·L·佩尔施巴谢迪帕·马哈詹霍华德·D·小西姆斯
Owner CARDIAC PACEMAKERS INC
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