Heuristic management of physiological data
First Claim
1. A method of collecting physiological data, the method comprising:
- allocating in a memory a plurality of reserved blocks, each block designated for receiving data related to a respective one of a plurality of cardiac rhythm types;
obtaining digital data representing an electrocardiogram of a patient;
detecting from the digital data a first episode of a particular one of the plurality of cardiac rhythm types in the patient, wherein the particular cardiac rhythm type is a first cardiac rhythm type;
storing, in the reserved block designated for receiving data related to the detected particular cardiac rhythm type, a data snapshot of the episode of the particular cardiac rhythm type; and
inhibiting the recording of further episodes of the first cardiac rhythm type based on the occurrence of an episode of a second cardiac rhythm type.
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Accused Products
Abstract
Systems and methods for management of physiological data, for example data obtained from monitoring an electrocardiogram signal of a patient. In one example use, digital data is obtained and episodes of arrhythmias are detected. Snapshots of the digitized ECG signal may be stored for later physician review. One or more techniques may be used to avoid recording of redundant data, while ensuring that at least a minimum number of episodes of each detected arrhythmia can be stored. The system may automatically tailor its data collection to the cardiac characteristics of a particular patient. In one technique, memory is allocated to include for each detectable arrhythmia a memory segment designated to receive ECG snapshots representing only the respective arrhythmia. A shared memory pool may receive additional snapshots of as the designated memory segments fill.
28 Citations
19 Claims
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1. A method of collecting physiological data, the method comprising:
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allocating in a memory a plurality of reserved blocks, each block designated for receiving data related to a respective one of a plurality of cardiac rhythm types; obtaining digital data representing an electrocardiogram of a patient; detecting from the digital data a first episode of a particular one of the plurality of cardiac rhythm types in the patient, wherein the particular cardiac rhythm type is a first cardiac rhythm type; storing, in the reserved block designated for receiving data related to the detected particular cardiac rhythm type, a data snapshot of the episode of the particular cardiac rhythm type; and inhibiting the recording of further episodes of the first cardiac rhythm type based on the occurrence of an episode of a second cardiac rhythm type. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cardiac monitoring system, comprising:
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a processor; and
a memory, the memory comprising a data storage area and also storing instructions that are executable by the processor and configure the system to;allocate in the memory a plurality of reserved blocks, each block designated for receiving data related to a respective one of a plurality of cardiac rhythm types; obtain digital data representing an electrocardiogram of a patient; detect from the digital data a first episode of a particular one of the plurality of cardiac rhythm types in the patient, wherein the particular cardiac rhythm type is a first cardiac rhythm type; and store, in the reserved block designated for receiving data related to the detected particular cardiac rhythm type, a data snapshot of the episode of the particular cardiac rhythm type, wherein the recording of further episodes of the first cardiac rhythm type are inhibited based on the occurrence of an episode of a second cardiac rhythm type. - View Dependent Claims (14, 15, 16)
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17. A method of collecting physiological data, the method comprising:
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obtaining digital data representing an electrocardiogram of a patient; detecting from the digital data a first episode of one of the plurality of cardiac rhythm types in the patient; storing in an electronic memory a data snapshot of the first episode; detecting from the digital data a second episode of one of the plurality of cardiac rhythm types in the patient; and making one or more of the following determinations; whether a respective refractory period has elapsed since the most recent recording of a data snapshot of an episode of the same rhythm type as the second episode, wherein the refractory period begins at an offset of the first episode and must elapse before an onset of the second episode; whether storing a data snapshot of the second episode would exceed a respective maximum recording rate assigned to the rhythm type of the second episode; and whether recording of a data snapshot of the second episode is inhibited by the recording of a different data snapshot; and evaluating whether storing of a data snapshot of the second episode is prohibited by the outcome of any one of the one or more determinations made; and storing in the electronic memory a data snapshot of the second episode only if such storing is not prohibited by the outcome of any of the one or more determinations made. - View Dependent Claims (18, 19)
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Specification