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.

Date of Patent:
Jan. 27, 2015

Filed:

Mar. 31, 2005
Applicants:

Bruce D. Gunderson, Plymouth, MN (US);

Amisha S. Patel, Maple Grove, MN (US);

Chad A. Bounds, Minneapolis, MN (US);

Inventors:

Bruce D. Gunderson, Plymouth, MN (US);

Amisha S. Patel, Maple Grove, MN (US);

Chad A. Bounds, Minneapolis, MN (US);

Assignee:

Medtronic, Inc., Minneapolis, MN (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/0452 (2006.01); A61N 1/362 (2006.01); A61B 5/0464 (2006.01); A61N 1/37 (2006.01); A61N 1/39 (2006.01);
U.S. Cl.
CPC ...
A61N 1/3621 (2013.01); A61B 5/04525 (2013.01); A61B 5/0464 (2013.01); A61N 1/3702 (2013.01); A61N 1/3925 (2013.01);
Abstract

An implantable cardioverter defibrillator (ICD) senses ventricular depolarizations (R-waves) in an electrogram signal to detect a ventricular tachycardia or fibrillation episodes. The EGM signal is also monitored in real time for characteristics that uniquely identify instances of T-wave oversensing. The ICD determines whether detection of a tachycardia or fibrillation episode is appropriate based upon counts of each of the unique characteristics evidencing T-wave oversensing.


Find Patent Forward Citations

Loading…