Adaptive waveform appraisal in an implantable cardiac system

Patent metadata

Field	Value
Publication number	US-8965491-B2
Application number	US-201414246703-A
Country	US
Kind code	B2
Filing date	Apr 7, 2014
Priority date	Oct 27, 2009
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

Methods and implantable devices for cardiac signal analysis. The methods and devices make use of waveform appraisal techniques to distinguish event detections into categories for suspect events and waveform appraisal passing events. When adjustments are made to the data entering analysis for waveform appraisal, the waveform appraisal thresholds applied are modified as well. For example, when the data analysis window for waveform appraisal changes in length, a waveform appraisal threshold is modified. Other changes, including changes in sensing characteristics with which waveform appraisal operates may also result in changes to the waveform appraisal threshold including changes in gain, sensing vector, activation of other devices, implantee posture and other examples which are explained.

First claim

What is claimed is:

1. An implantable device (ID) comprising operational circuitry and a plurality of electrodes electrically coupled to the operational circuitry to allow observation of electrical activity by the operational circuitry when the ID is implanted in a patient, wherein the operational circuitry is configured to perform a method of detecting cardiac signals, comprising:
sensing electrical activity using the electrodes;
detecting a detected event in the electrical act…

Assignees

• Cameron Health Inc

Inventors

• Allavatam Venugopal
• Sanghera Rick
• Warren Jay A

Classifications

• A61N1/3706 Primary

  Human Necessities · mapped topic

• A61N1/3987

  Human Necessities · mapped topic

• A61N1/37

  Human Necessities · mapped topic

• A61B5/04012 Primary

  Human Necessities · mapped topic

• A61B5/346 Primary

  Human Necessities · mapped topic