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. 11, 2014
Filed:
Sep. 15, 2010
Martin Cholette, Acton, CA (US);
Martin Cholette, Acton, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
The invention is directed towards measuring current of injury (COI) during lead fixation. A baseline waveform is sensed from a lead while the lead is in a pre-fixation position. The baseline waveform represents an interface between the lead and tissue proximate a lead prior to active fixation. Cardiac signals are then sensed when the lead is in a post-fixation position. The post-fixation waveform represents an interface between the lead and the tissue once the lead is actively attached to the tissue. A COI is calculated based on an automatic comparison of the baseline and post-fixation waveforms. A COI feature of interest is identified in the baseline and post-fixation waveforms and a COI index, a COI area, a COI differential and/or a COI ratio is calculated based on the COI feature of interest in the baseline and post-fixation waveforms.