MONITORING DEVICE AND METHOD FOR OPERATING A MONITORING DEVICE
First Claim
1. A monitoring device for a patient for predicting a cardiovascular anomaly, the monitoring device comprising:
- a first input;
a sensor connectable to the first input and configured to acquire a value of a physiological parameter based on a cardiovascular anomaly, the first input and the sensor being implantable;
a second input;
a detection unit connectable to the second input and configured to detect a value change of a state parameter that is different from the physiological parameter, the state parameter being a different physiological parameter or a parameter characterizing a state of a medical device connected to the patient or a parameter characterizing another physical or pharmacotherapeutic state of the patient;
an analysis unit operationally linked to the implantable sensor and the detection unit, the analysis unit configured to, upon a detection of the value change of the state parameter, determine a value change of the physiological parameter occurring upon the value change of the state parameter and configured to provide a first differential signal as a function of the determined value change of the physiological parameter;
a transformation unit configured to receive the first differential signal and to transform it into a characteristic variable as a function of a chronological correlation of the value changes of the state parameter and the physiological parameter and/or as a function of an absolute value and/or a direction of the detected value change of the state parameter and to provide it; and
a prediction unit configured to receive and evaluate the characteristic variable and to provide an evaluation result signal indicative of an imminence of a cardiovascular anomaly as a function of the evaluation.
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Accused Products
Abstract
A monitoring device for a patient for predicting a cardiovascular anomaly and a method for operating a monitoring device is provided. Furthermore, an implantable electrotherapy device, such as an implantable cardiac pacemaker, an implantable cardioverter, or an implantable defibrillator, having a monitoring device are also provided. In an embodiment, the monitoring device acquires a value change of a hemodynamic parameter, which occurs as a result of a detected value change of a state parameter, for example, as a result of an activation or deactivation of a cardiac resynchronization therapy. By suitable evaluation of the value change of the hemodynamic parameter, the monitoring device can output an evaluation result signal which is indicative of an imminence of a cardiovascular anomaly, such as a cardiac decompensation, long beforehand and with high specificity.
17 Citations
15 Claims
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1. A monitoring device for a patient for predicting a cardiovascular anomaly, the monitoring device comprising:
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a first input; a sensor connectable to the first input and configured to acquire a value of a physiological parameter based on a cardiovascular anomaly, the first input and the sensor being implantable; a second input; a detection unit connectable to the second input and configured to detect a value change of a state parameter that is different from the physiological parameter, the state parameter being a different physiological parameter or a parameter characterizing a state of a medical device connected to the patient or a parameter characterizing another physical or pharmacotherapeutic state of the patient; an analysis unit operationally linked to the implantable sensor and the detection unit, the analysis unit configured to, upon a detection of the value change of the state parameter, determine a value change of the physiological parameter occurring upon the value change of the state parameter and configured to provide a first differential signal as a function of the determined value change of the physiological parameter; a transformation unit configured to receive the first differential signal and to transform it into a characteristic variable as a function of a chronological correlation of the value changes of the state parameter and the physiological parameter and/or as a function of an absolute value and/or a direction of the detected value change of the state parameter and to provide it; and a prediction unit configured to receive and evaluate the characteristic variable and to provide an evaluation result signal indicative of an imminence of a cardiovascular anomaly as a function of the evaluation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for operating a monitoring device, the method comprising:
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acquiring a value of a physiological parameter based on a cardiovascular anomaly; detecting a value change of a state parameter that is different from the physiological parameter, the state parameter being a different physiological parameter or a parameter characterizing a state of a medical device connected to the patient or a parameter characterizing another physical or pharmacotherapeutic state of the patient; determining, upon the detection of the value change of the state parameter, a value change of the physiological parameter occurring upon the value change of the state parameter; providing a first differential signal as a function of the acquired value change of the physiological parameter; transforming the differential signal into a characteristic variable as a function of a chronological correlation of the value changes of the state parameter and the physiological parameter and/or as a function of an absolute value and/or a direction of the detected value change of the state parameter and providing the characteristic variable; and evaluating the characteristic variable and providing an evaluation result signal, which is indicative of an imminence of a cardiovascular anomaly, as a function of the evaluation.
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Specification