System and Method For Monitoring Cardiac Blood Flow Balance Between The Right and Left Heart Chambers

Abstract

A system for measuring of cardiac blood flow balance parameter between the right chamber of the heart and the left chamber of the heart includes a sensor device for measuring one of blood pressure and blood flow rate and blood constituent concentration of a patient so as to generate an arterial pulse signal. A processing unit is responsive to the arterial pulse signal for generating a full arterial pulse signal, an arterio-venous pulse signal, and a balance parameter. A computational device is responsive to the balance parameter for further generating a set of physiological parameters. A display station device is responsive to the set of physiological parameters from the computational device for displaying meaningful information.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a non-provisional application which claims the benefits of provisional application Ser. No. 61 / 700,892 filed on Sep. 14, 2012.BACKGROUND OF THE INVENTION[0002]1. Technical Field[0003]This invention relates generally to methods, devices, and systems used in the field of cardiovascular medicine for clinically assessing of a patient's health condition. More particularly, it relates to a new and improved system and method for monitoring cardiac blood flow balance between the right and left heart chambers based on arterial pulse waveforms representing blood pressure or flow or constituent concentration per cardiac cycle.[0004]The description below is merely provided for general background information and for assisting in understanding the technical field to which the present invention is related. As is generally known in the art, the circulatory system in human beings is responsible for transporting oxygen and other nutrien...

AI Technical Summary

Benefits of technology

The present invention provides a system and method for measuring the balance between the left and right chambers of the heart, which is important for assessing a patient's health condition. The system also generates a full arterial pulse signal, which represents the flow of blood from the ventricles without the effect of the atrial diastolic blood flow demand. The system uses system identification techniques to model the transfer function relationship between the peripheral artery and aortic av pulse signals or the pulmonary artery peripheral branch and the pulmonary artery av pulse signals. This invention improves the design and performance of a system for measuring cardiac blood flow balance parameter.

Problems solved by technology

Often the performance of the left side of the vascular system is analyzed separately from the right side, which yields weak conclusions that cannot be generalized.

Traditional models that failed to take into account the simultaneous effects of the left and right heart cycles tend to bias the attribution of the dynamics it models to one side over the other, and therefore fail to represent the true dynamics fully.

Images