Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
1999-04-12
2001-07-31
Getzow, Scott M. (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
Reexamination Certificate
active
06267778
ABSTRACT:
S
TATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT Not applicable
REFERENCE TO A MICROFICHE APPENDIX
Not Applicable
BACKGROUND OF THE INVENTION
This invention relates generally to medicine and more specifically to improved cardiac pacing systems including methods of pacing and sensing in the treatment of cardiac disease. Reference is hereby made to my U.S. Pat. Nos. 5,174,289 and 5,267,560, which are incorporated herein by reference. These patents define terms that will be used herein, describe limitations of previous pacing systems, and contain prior art and classification information which may be applicable to this invention. This invention will describe additional systems and methods for controlling the ventricular activation sequence in the treatment of patients with wide QRS complexes of intrinsic origin.
BRIEF SUMMARY OF THE INVENTION
One object of the present invention is to provide pacing methods and systems which have the capability of improving ventricular function both in the duration of its contraction (by narrowing QRS duration) and the control of ventricular wall and septal motion.
Another object of the present invention is to provide methods and systems for detecting the onset of the QRS complex by means of acquiring and analyzing an electrocardiogram, and employing said QRS onset to trigger at least one ventricular pacing impulse.
According to the present invention at least one pacing electrode is triggered to stimulate the ventricular muscle by the detected onset of a QRS complex of intrinsic origin, either simultaneously or at a delayed interval or intervals.
Reference is hereby made to my previous written and illustrated description which was filed under the Disclosure Document Program on Jan. 6, 1998 and assigned Disclosure Document No. 430365, which is incorporated by reference herein.
The foregoing and other objects, features and advantages of the invention will be apparent from the following, more particular description of the preferred embodiment of the invention, as illustrated in the accompanying drawings.
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Getzow Scott M.
Goltry Michael W.
Parsons Robert A.
Parsons & Goltry
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