Method, apparatus and system for validating and quantifying cardiac beat data quality
First Claim
1. A medical device system, comprising:
- a cardiac data collection module capable of collecting cardiac data comprising a fiducial time marker for each of a plurality of candidate heart beats in a first time series;
a heart beat test module capable of performing a plurality of beat validity tests on each of said plurality of candidate heart beats in said first time series;
a beat quality index module capable of determining a beat quality index value for each of said plurality of candidate heart beats, wherein the beat quality index value is based on the result of each beat validity test performed on the candidate heart beat;
at least one responsive action module capable of performing at least one responsive action based upon an output of said beat quality index module, the at least one responsive action module selected from the group consisting of;
a storage unit capable of storing a time series of beat quality index values;
an event detection module capable of detecting at least one of an epileptic seizure event or an increased risk of an epileptic seizure event;
a neurostimulation unit capable of applying a neurostimulation therapy to the patient; and
a warning unit capable of providing a warning to at least one of a caregiver, the patient, or a physician based on an output of said beat quality index module.
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Accused Products
Abstract
Methods, systems, and apparatus for quantifying the quality of a fiducial time marker for a candidate heart beat, quantifying the quality of a candidate heart beat, or determining a time of beat sequence of the patient'"'"'s heart. A fiducial time marker is obtained for a candidate heart beat. A quality index of said candidate heart beat is set to a first value. The candidate heart beat is tested with at least one beat validity test. At least a second value is added to said quality index of said candidate heart beat if said candidate heart beat passes said at least one beat validity test. The candidate heart beat is tested with at least a second heart beat validity test. At least a third value is added to said quality index of said candidate heart beat if said candidate heart beat passes said at least second heart beat validity test. In one class of beat validity test, a constraint defining a pass is modified at one or more times after the most recent prior valid heart beat that is greater than a constraint modification time threshold.
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Citations
20 Claims
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1. A medical device system, comprising:
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a cardiac data collection module capable of collecting cardiac data comprising a fiducial time marker for each of a plurality of candidate heart beats in a first time series; a heart beat test module capable of performing a plurality of beat validity tests on each of said plurality of candidate heart beats in said first time series; a beat quality index module capable of determining a beat quality index value for each of said plurality of candidate heart beats, wherein the beat quality index value is based on the result of each beat validity test performed on the candidate heart beat; at least one responsive action module capable of performing at least one responsive action based upon an output of said beat quality index module, the at least one responsive action module selected from the group consisting of; a storage unit capable of storing a time series of beat quality index values; an event detection module capable of detecting at least one of an epileptic seizure event or an increased risk of an epileptic seizure event; a neurostimulation unit capable of applying a neurostimulation therapy to the patient; and a warning unit capable of providing a warning to at least one of a caregiver, the patient, or a physician based on an output of said beat quality index module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A medical device system, comprising:
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a cardiac data collection module capable of collecting cardiac data comprising a fiducial time marker for each of a plurality of candidate heart beats in a first time series; a heart beat test module capable of performing a plurality of beat validity tests on each of said plurality of candidate heart beats in said first time series; a beat quality index module capable of determining a beat quality index value for each of said plurality of candidate heart beats, wherein the beat quality index value is based on the result of each beat validity test performed on the candidate heart beat; an event detection module capable of detecting an epileptic seizure event based on a first heart rate parameter determined from candidate heart beats in a first window, and a second heart rate parameter determined from candidate heart beats in a second window; and at least one responsive action module capable of performing at least one responsive action based upon an output of said event detection module, the at least one responsive action module selected from the group consisting of; a storage unit capable of storing a time series of beat quality index values; a neurostimulation unit capable of applying a neurostimulation therapy to the patient; and a warning unit capable of providing a warning to at least one of a caregiver, the patient, or a physician based on an output of said beat quality index module. - View Dependent Claims (18)
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19. A medical device system, comprising:
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a cardiac data collection module capable of collecting cardiac data comprising a fiducial time marker for each of a plurality of candidate heart beats in a first time series; a heart beat test module capable of performing a plurality of beat validity tests on each of said plurality of candidate heart beats in said first time series; a beat quality index module capable of determining a beat quality index value for each of said plurality of candidate heart beats, wherein the beat quality index value is based on the result of each beat validity test performed on the candidate heart beat; an event detection module capable of detecting an epileptic seizure event based on a first heart rate parameter determined from candidate heart beats in a first window, and a second heart rate parameter determined from candidate heart beats in a second window; and a neurostimulation unit capable of applying a neurostimulation therapy to the patient, based upon an output of said event detection module. - View Dependent Claims (20)
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Specification