Thermal dilution method for haemodynamics

Abstract

The invention relates to the fields of computer techniques and biomedical engineering, in particular to a thermal dilution method in a haemodynamic module of heart-mediated treatment equipment. In the indexes for judging perfusion of important organs with cardiac function, the most direct and effective ones are: cardiac output (CO), ejection fraction (EF), pulmonary artery wedge pressure (PAWP) and saturation mixed venous blood oxygen (SvO2). The acquisition of haemodynamic parameters is highly complex. The invention aims to discover a more simple and reliable method for analysis, measurement and computation. Therefore, the doctor can know the condition of the patient more simply and intuitively and give a diagnosis result timely; and the operation time is shortened, and the life of the patient is saved. The thermal dilution method for the haemodynamics needs analyzing and measuring the following systems: cardiac output, pressure gradient, pressure, various characteristic points of invasive blood pressure, and valve area.

Description

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AI Technical Summary

Benefits of technology

This technology helps physicians make accurate diagnosis for patients with different medical conditions by measuring their blood flow dynamics over time or from any location they are at risk due to sudden changes such as strokes caused by blockages that may occur inside them's body. By monitoring these measurements throughout an operating procedure, healthcare professionals will have better tools to identify potential problems before emergency measures like surgeries or hospital stays become necessary.

Problems solved by technology

This patents describes how cardiovascular functions like circulating blood volume or resistance may change over time due to various factors including physical activity levels during hospitalization procedures. These variables affect stroke volumes and other indices related thereto. However, current techniques require expensive equipment and involve complicated operations. There has been research done towards developing more efficient ways to measure cardiorespiratory performance without requiring specialized training.

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