System and method for onset/offset capture
AssigneeMedtronic Monitoring, Inc.
InventorsRodolphe Katra, Scott Williams, Niranjan Chakravarthy
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Abstract
A medical device is utilized to monitor physiological parameters of a patient and capture segments of the monitored physiological parameters. The medical device includes circuitry configured to monitor one or more physiological parameters associated with the patient and an analysis module that includes a buffer and a processor. The buffer stores monitored physiological parameters and the processor analyzes the monitored physiological parameters and triggers capture of segments from the buffer in response to a triggering criteria being satisfied. The analysis module selects a pre-trigger duration based at least in part on the triggering criteria.
Claims10
An insertable cardiac monitor comprising:
- a housing configured for subcutaneous implantation in a patient, the housing having a length between 40 millimeters (mm) and 60 mm between a first end and a second end, a width less than the length, and a depth less than the width;
- a first electrode at or proximate to the first end;
- a second electrode at or proximate to the second end;
- electrocardiogram (ECG) monitoring circuitry within the housing, the ECG monitoring circuitry configured to monitor one or more ECG signals of a patient via the first electrode and the second electrode;
- a buffer within the housing;
- a memory within the housing;
- wireless communication circuitry within the housing;
- and
- processing circuitry within the housing, the processing circuitry configured to:
- store ECG signal data indicative of the one or more ECG signals in the buffer;
- determine whether a primary segment of the ECG signal data in the buffer satisfies an onset trigger criteria;
- store the primary segment of the ECG signal data in the memory in response to determining that the primary segment of the ECG signal data satisfies the onset trigger criteria;
- determine whether a secondary segment of the ECG signal data in the buffer satisfies an arrhythmia trigger criteria;
- store the secondary segment of the ECG signal data in the memory in response to determining that the secondary segment of the ECG signal data satisfies the arrhythmia trigger criteria;
- discard the primary segment from the memory in response to storing the primary segment in the memory not being followed by determining that the secondary segment in the buffer satisfies the arrhythmia trigger criteria;
- and
- control the wireless communication circuitry to transmit the segments of ECG signal data stored in the memory to a remote monitoring center.
Dependencies are inferred from the claim text.