Abstract: A system for measuring heart rate variability (HRV) comprising 3 sub-systems: a data collection sub-system, a data analysis sub-system, and an output sub-system. A patient is connected to a heart monitoring device such as an ECG and the data collection sub-system records the patients heart beats, and an ECG chart is produced from which the patient's HRV value is derived by the data analysis sub-system. The present invention obtains the HRV value through calculation of a new parameter called relative density (RD). In accordance with the inventive method, data points are generated from the peak interval data of measured heart beats and the HRV relative density parameter (RD) is calculated by correlation between two subsets of data points.
Type:
Grant
Filed:
June 2, 2016
Date of Patent:
July 10, 2018
Assignee:
LEV-EL DIAGNOSTICS OF HEART DISEASES LTD.
Abstract: A system for measuring heart rate variability (HRV) comprising 3 sub-systems: a data collection sub-system, a data analysis sub-system, and an output sub-system. A patient is connected to a heart monitoring device such as an ECG and the data collection sub-system records the patients heart beats, and an ECG chart is produced from which the patient's HRV value is derived by the data analysis sub-system. The present invention obtains the HRV value through calculation of a new parameter called relative density (RD). In accordance with the inventive method, data points are generated from the peak interval data of measured heart beats and the HRV relative density parameter (RD) is calculated by correlation between two subsets of data points.
Type:
Grant
Filed:
April 22, 2014
Date of Patent:
July 12, 2016
Assignee:
LEV-EL DIAGNOSTICS OF HEART DISEASES LTD.
Abstract: A system for measuring heart rate variability (HRV) comprising 3 sub-systems: a data collection sub-system, a data analysis sub-system, and an output sub-system. A patient is connected to a heart monitoring device such as an ECG and the data collection sub-system records the patients heart beats, and an ECG chart is produced from which the patient's HRV value is derived by the data analysis sub-system. The present invention obtains the HRV value through calculation of a new parameter called relative density (RD). In accordance with the inventive method, data points are generated from the peak interval data of measured heart beats and the HRV relative density parameter (RD) is calculated by correlation between two subsets of data points.
Type:
Grant
Filed:
August 2, 2011
Date of Patent:
August 5, 2014
Assignee:
Lev-El Diagnostics of Heart Diseases Ltd.
Abstract: A system for measuring heart rate variability (HRV) of a patent comprises:
recording means for obtaining and regulating heartbeat-to-heartbeat intervals for a predetermined period of time;
processing means for digitizing said intervals, forming a recurrence plot, and assigning a unit mass to each point on the plot representing a measured interval, and calculating the determinant by the expression
Qdet=QxxQyy
wherein:
Qxx is the quadrupole moment relative to the X axis of the principal coordinate,
Qyy is the quadrupole moment relative to the Y axis of the principal coordinate; and
Qdet is the product of Qxx and Qyy.
Type:
Grant
Filed:
January 16, 2001
Date of Patent:
May 4, 2004
Assignee:
LEV-EL Diagnostics of Heart Disease Ltd.