ACTIVE IMPLANTABLE MEDICAL DEVICE WITH BIVENTRICULAR PACING AND AUTOMATIC OPTIMIZATION OF PACING CONFIGURATION
First Claim
1. An active implantable medical device with biventricular pacing, comprising:
- means for collecting a signal of endocardial acceleration (EA), and means for analyzing the EA signal, able to determine at least one peak value that is function of one and/or the other of two peaks of endocardial acceleration over one given cycle, said two peaks comprising a first peak during the isovolumetric ventricular contraction phase (PEA I) and a second peak during the isovolumetric ventricular relaxation (PEA II), and means for helping to search for an optimal pacing configuration, said means further comprising assessing means, able to determine, for each pacing configuration, a respective performance index, that is derived from the peak value(s).
2 Assignments
0 Petitions
Accused Products
Abstract
An active implantable medical device with biventricular pacing and automatic optimization of pacing configuration. The device collects and analyzes an endocardial acceleration signal (EA), and searches for an optimal pacing configuration based upon a performance index derived from at least one value relating to one and/or the other of the two endocardial acceleration peaks (PEA 1, PEA 11) over a given heart cycle. Optimization search operates through a scanning of a parameter, e.g., atrio-ventricular delay, and calculation of the surface area underneath the characteristic of the peak amplitude as a function of the scanned parameter (atrioventricular delay).
-
Citations
19 Claims
-
1. An active implantable medical device with biventricular pacing, comprising:
-
means for collecting a signal of endocardial acceleration (EA), and means for analyzing the EA signal, able to determine at least one peak value that is function of one and/or the other of two peaks of endocardial acceleration over one given cycle, said two peaks comprising a first peak during the isovolumetric ventricular contraction phase (PEA I) and a second peak during the isovolumetric ventricular relaxation (PEA II), and means for helping to search for an optimal pacing configuration, said means further comprising assessing means, able to determine, for each pacing configuration, a respective performance index, that is derived from the peak value(s). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An active implantable medical device with biventricular pacing, comprising:
-
means for detecting an endocardial acceleration (EA) signal, including a first peak during the isovolumetric ventricular contraction phase (PEA 1) and a second peak during the isovolumetric ventricular relaxation (PEA II) of a given cardiac cycle;
means for analyzing the detected EA signal, able to determine at least one peak value that is function of one of said first peak and said second peak; and
means for determining a performance index derived from said determined peak value for a given pacing configuration, wherein said determined performance index may vary from one given pacing configuration to a different given pacing configuration. - View Dependent Claims (11, 12, 14, 15, 16, 17, 18, 19)
-
-
13. The device of claim 13, wherein the means for deriving the performance index further comprises means able to derive the performance index from the value of a surface area defined underneath a characteristic of the at least one peak value as a function of the functional parameter.
Specification