The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2002
Filed:
Sep. 29, 1999
Tran Thong, Portland, OR (US);
Other;
Abstract
An implantable cardioverter, especially defibrillator, having a morphology detector ( ) to measure and evaluate EKG signals for the purpose of discriminating between different tachycardia conditions of the heart. The morphology detector ( ) having a signal width detector, by which the respective width of the EKG signal between every two successive crossings through the isoelectrical line of the EKG can be measured; a threshold value discriminator to determine whether the EKG signal between two such successive crossings exceeds a defined threshold value; and a comparator for the signal width, coupled to the signal width detector and the threshold value discriminator. The morphology detector compares the respective current signal width value selected by the threshold value discriminator and measures by signal width detector to a pre-set selection parameter to differentiate between two different conditions of tachycardia.