Techniques for selective channel processing and data retention in an implantable medical device
First Claim
1. A method for processing physiologic data from a plurality of physiologic input sense channels monitored by a medical device, the method comprising:
- (A) determining by a processor a selection criterion for selecting from the plurality of physiologic channels;
(B) dynamically selecting by a processor a first input sense channel subset of physiologic input sense channels from the plurality of physiologic input sense channels based on the selection criterion at a first time value;
(C) retaining a first data sensed through the dynamically selected first input sense channel subset of physiologic input sense channels;
(D) dynamically selecting by the processor a second input sense channel subset of physiologic input sense channels from the plurality of physiologic input sense channels based on the selection criterion at a second time value;
(E) retaining a second data sensed through the dynamically selected second input sense channel subset of physiologic input sense channels; and
(F) combining by the processor at least two of the selected input sense channel subsets of physiologic input sense channels into a composite channel, the combining based on a selection criterion associated with a characteristic of at least one of the plurality of physiologic input sense channels.
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Abstract
Methods and apparatus for storing data records associated with a medical monitoring event in a data structure. An implanted device obtains data and stores the data in the data record in a first data structure that is age-based. Before an oldest data record is lost, the oldest data record may be stored in a second data structure that is priority index-based. The priority index may be determined by a severity level and may be further determined by associated factors. The implanted device may organize, off-load, report, and/or display a plurality of data records based on an associated priority index. Additionally, the implanted device may select a subset or composite of physiologic channels from the available physiologic channels based on a selection criterion.
120 Citations
22 Claims
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1. A method for processing physiologic data from a plurality of physiologic input sense channels monitored by a medical device, the method comprising:
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(A) determining by a processor a selection criterion for selecting from the plurality of physiologic channels; (B) dynamically selecting by a processor a first input sense channel subset of physiologic input sense channels from the plurality of physiologic input sense channels based on the selection criterion at a first time value; (C) retaining a first data sensed through the dynamically selected first input sense channel subset of physiologic input sense channels; (D) dynamically selecting by the processor a second input sense channel subset of physiologic input sense channels from the plurality of physiologic input sense channels based on the selection criterion at a second time value; (E) retaining a second data sensed through the dynamically selected second input sense channel subset of physiologic input sense channels; and (F) combining by the processor at least two of the selected input sense channel subsets of physiologic input sense channels into a composite channel, the combining based on a selection criterion associated with a characteristic of at least one of the plurality of physiologic input sense channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A medical device for processing physiologic data from a plurality of physiologic input sense channels, comprising:
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(A) a physiologic sensing component that obtains the physiologic data from the plurality of physiologic input sense channels; (B) a channel selection component that selects an input sense channel subset of physiologic input sense channels from the plurality of physiologic input sense channels based on a selection criterion for storage, the channel selection component configured to combine at least two of the selected input sense channel subsets of physiologic input sense channels into a composite channel based on the selection criterion, wherein the selection is associated with a characteristic of at least one of the plurality of physiologic channels; and (C) a memory component that stores channel data corresponding to the selected channel subset of physiologic input sense channels. - View Dependent Claims (17, 18, 19, 20)
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21. A method for processing physiologic data from a plurality of physiologic input sense channels monitored by an implantable medical device, the method comprising:
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(A) monitoring a set of physiological signals sensed over a plurality of physiologic input sense channels; (B) dynamically selecting by a processor a input sense channel subset from the plurality of input sense physiologic channels based on detection of a neurological event; and (C) retaining only data sensed via the dynamically selected input sense channel subset with respect to the plurality of input sense physiologic channels in memory of the implantable medical device.
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22. An implantable medical device for processing physiologic data from a plurality of physiologic input sense channels, comprising:
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(A) a physiologic sensing component that monitors the physiologic data sensed over the plurality of physiologic input sense channels; (B) a channel selection component that dynamically selects an input sense channel subset from the plurality of physiologic input sense channels based on detection of a neurological event; and (C) a memory component that stores only data sensed via the dynamically selected input sense channel subsets with respect to the plurality of input sense physiologic channels.
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Specification