Electrocardiography and actigraphy monitoring system
First Claim
1. An electrocardiography and actigraphy monitoring system, comprising:
- a monitor recorder, comprising;
a sealed housing adapted to be removably secured into a non-conductive receptacle on a disposable extended wear electrode patch;
electronic circuitry comprised within the sealed housing, comprising;
an externally-powered flash memory electrically interfaced with an externally-powered micro-controller and comprising a data record comprising at least two electrocardiogram (ECG) tracks, each of the ECG tracks operable to store ECG data from an ECG data channel;
an electrocardiographic front end circuit electrically interfaced to the externally-powered micro-controller and operable to sense electrocardiographic signals through electrocardiographic electrodes provided on the disposable extended wear electrode patch;
an actigraphy sensor electrically interfaced with the micro-controller and operable to sense one or more actigraphy event occurrences based on movement of the sensor using an actigraphy event occurrence criteria and to send an interrupt request (IRQ) signal to the micro-controller upon sensing each of the actigraphy event occurrences; and
an externally-powered micro-controller operable to execute under micro-programmable control, the micro-controller further operable to sample the electrocardiographic signals and to sample one of the actigraphy event occurrences sensed by the actigraphy sensor upon receiving one of the IRQ signals, to embed samples of the electrocardiographic signals within one of the ECG tracks for storage into the data record in the memory and to embed the samples of the actigraphy event occurrences into another one of the ECG tracks for storage into the data record in the memory, the embedding of the samples of the actigraphy event occurences comprising buffering each of the actigraphy event occurrences samples, compressing each of the buffered actigraphy event occurrences samples, buffering each of the compressed actigraphy event occurrences samples, and writing the buffered compressed actigraphy event occurrences samples into the another one of ECG tracks.
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Accused Products
Abstract
Physiological monitoring can be provided through an actigraphy sensor imbedded into an electrocardiography monitor, which correlates movement and electrocardiographic data. Physiological monitoring can be provided through a wearable monitor that includes two components, a flexible extended wear electrode patch and a removable reusable monitor recorder. The wearable monitor sits centrally on the patient'"'"'s chest along the sternum. The patient can place an electrode patch anywhere within the general region of the sternum. The occurrence of actigraphy events are monitored by the monitor recorder through an actigraphy sensor. Actigraphy becomes a recordable actigraphy event occurrence when the movement of the wearable monitor and, therefore, the patient, exceeds a certain criteria threshold of acceleration or deceleration as detected by the actigraphy sensor. Certain actigraphy event occurrences as recorded by the monitor recorder are considered to be actionable, that is, of sufficient importance to warrant flagging for further consideration to a following physician.
458 Citations
19 Claims
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1. An electrocardiography and actigraphy monitoring system, comprising:
a monitor recorder, comprising; a sealed housing adapted to be removably secured into a non-conductive receptacle on a disposable extended wear electrode patch; electronic circuitry comprised within the sealed housing, comprising; an externally-powered flash memory electrically interfaced with an externally-powered micro-controller and comprising a data record comprising at least two electrocardiogram (ECG) tracks, each of the ECG tracks operable to store ECG data from an ECG data channel; an electrocardiographic front end circuit electrically interfaced to the externally-powered micro-controller and operable to sense electrocardiographic signals through electrocardiographic electrodes provided on the disposable extended wear electrode patch; an actigraphy sensor electrically interfaced with the micro-controller and operable to sense one or more actigraphy event occurrences based on movement of the sensor using an actigraphy event occurrence criteria and to send an interrupt request (IRQ) signal to the micro-controller upon sensing each of the actigraphy event occurrences; and an externally-powered micro-controller operable to execute under micro-programmable control, the micro-controller further operable to sample the electrocardiographic signals and to sample one of the actigraphy event occurrences sensed by the actigraphy sensor upon receiving one of the IRQ signals, to embed samples of the electrocardiographic signals within one of the ECG tracks for storage into the data record in the memory and to embed the samples of the actigraphy event occurrences into another one of the ECG tracks for storage into the data record in the memory, the embedding of the samples of the actigraphy event occurences comprising buffering each of the actigraphy event occurrences samples, compressing each of the buffered actigraphy event occurrences samples, buffering each of the compressed actigraphy event occurrences samples, and writing the buffered compressed actigraphy event occurrences samples into the another one of ECG tracks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
Specification