Intra-aortic balloon pump having improved automated electrocardiogram based intra-aortic balloon deflation timing
OwnerPaul Nigroni, Lara Sarrafinventors
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Abstract
An intra-aortic balloon pump (IABP) having improved automated electrocardiogram (ECG) based intra-aortic balloon deflation timing. Said IABP capable of automatically determining to either deflate the intra-aortic balloon upon the detection of the next cardiac cycle (non-predictive deflation) or at an earlier point derived from predicting the occurrence of the next cycle (predictive deflation). This automated determination is based upon a quantitative assessment of the performance of the intra-aortic balloon pump in predicting the prevailing cardiac rhythm.
Claims15
An intra-aortic balloon pump comprising a balloon inflation and deflation means and a control logic module for controlling said balloon inflation and deflation means, said control logic module having a setting in which it bases its decision of automatically activating and/or deactivating a non-predictive deflation mode on its assessment of its performance in a predictive deflation mode,
- said control logic module assessing the performance of the intra-aortic balloon pump by comparing predicted beat-to-beat intervals to corresponding actual beat-to-beat intervals.
An intra-aortic balloon pump comprising a balloon inflation and deflation means and a control logic module for controlling said balloon inflation and deflation means, said control logic module having a setting in which it bases its decision of automatically activating and/or deactivating a non-predictive deflation mode on its assessment of its performance in a predictive deflation mode,
- said control logic module assessing the performance of the intra-aortic balloon pump by comparing prediction errors and consequently deflation timing errors to total diastolic augmentation time available.
An intra-aortic balloon pump comprising a balloon inflation and deflation means and a control logic module for controlling said balloon inflation and deflation means, said control logic module having a setting in which it bases its decision of automatically activating and/or deactivating a non-predictive deflation mode on its assessment of its performance in a predictive deflation mode,
- said control logic module assessing the performance of the intra-aortic balloon pump by comparing actual diastolic augmentation for a given beat to the total potential diastolic augmentation that can be realized.
A method for an intra-aortic balloon pump for determining when to automatically switch from a predictive deflation mode to a non-predictive deflation mode, said intra-aortic balloon pump comprising a balloon inflation and deflation means and a control logic module for controlling said balloon inflation and deflation means, said control logic module having a setting in which it bases its decision of automatically activating a non-predictive deflation mode on its assessment of its performance in a predictive deflation mode,
- said method comprising the steps of:
- a)assessing the performance of the intra-aortic balloon pump in the predictive deflation mode by comparing predicted beat-to-beat intervals to corresponding actual beat-to-beat intervals;
- and
- b)switching to the non-predictive deflation mode when a predetermined non-predictive activation threshold is reached, said non-predictive activation threshold being based on the assessment of intra-aortic balloon pump performance in part (a).
A method for an intra-aortic balloon pump for determining when to automatically switch from a predictive deflation mode to a non-predictive deflation mode, said intra-aortic balloon pump comprising a balloon inflation and deflation means and a control logic module for controlling said balloon inflation and deflation means, said control logic module having a setting in which it bases its decision of automatically activating a non-predictive deflation mode on its assessment of its performance in a predictive deflation mode,
- said method comprising the steps of:
- a)assessing the performance of the intra-aortic balloon pump in the predictive deflation mode by comparing prediction errors and consequently deflation timing errors to total diastolic augmentation time available;
- and
- b)switching to the non-predictive deflation mode when a predetermined non-predictive activation threshold is reached, said non-predictive activation threshold being based on the assessment of intra-aortic balloon pump performance in part (a).
A method for an intra-aortic balloon pump for determining when to automatically switch from a predictive deflation mode to a non-predictive deflation mode, said intra-aortic balloon pump comprising a balloon inflation and deflation means and a control logic module for controlling said balloon inflation and deflation means, said control logic module having a setting in which it bases its decision of automatically activating a non-predictive deflation mode on its assessment of its performance in a predictive deflation mode,
- said method comprising the steps of:
- a)assessing the performance of the intra-aortic balloon pump in the predictive deflation mode by comparing actual diastolic augmentation for a given beat to the total potential diastolic augmentation that can be realized;
- and
- b)switching to the non-predictive deflation mode when a predetermined non-predictive activation threshold is reached, said non-predictive activation threshold being based on the assessment of intra-aortic balloon pump performance in part (a).
Dependencies are inferred from the claim text.