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:
Jan. 19, 2010
Filed:
Jul. 19, 2006
Jong Gill, Valencia, CA (US);
Peter Boileau, Valencia, CA (US);
Gene A. Bornzin, Simi Valley, CA (US);
Joseph J. Florio, Bend, OR (US);
Xiaoyi Min, Thousand Oaks, CA (US);
Jong Gill, Valencia, CA (US);
Peter Boileau, Valencia, CA (US);
Gene A. Bornzin, Simi Valley, CA (US);
Joseph J. Florio, Bend, OR (US);
Xiaoyi Min, Thousand Oaks, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
Methods and systems are presented for using an ICD to detect myocardial ischemia. In one embodiment, a method includes sensing a signal indicative of cardiac pressure, measuring a height of the sensed signal at a peak amplitude of the sensed signal, and measuring a duration of the sensed signal. The method further includes indicating an ischemia based on a comparison of a ratio of the height to the duration with a predetermined value. In another embodiment, a method includes sensing a signal indicative of cardiac pressure, determining a derivative signal that is a first derivative of the sensed signal, measuring a maximum positive value of the derivative signal, and measuring a maximum negative value of the derivative signal. The method further includes indicating an ischemia based on a comparison of a ratio of the maximum positive value to the maximum negative value with a predetermined value.