Patent · US Active

Systems and methods for accurately, substantially noninvasively determining pulmonary capillary blood flow or cardiac output

US8801625B2 · kind B2 · utility

2Cited by
23References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 3, 2006
Grant dateAug 12, 2014
Priority date—
Expiry dateNov 25, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2001/2244
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Methods for noninvasively determining a pulmonary capillary blood flow or a cardiac output of a subject include determining data of the amount of gas exchanged between blood and gas in lungs of the subject, as well as data of an indicator of the content of the gas in blood of the subject. Such a determination may be made during two or more different states of ventilation. A geometric relationship is identified between data points, with any data points outlying the geometric relationship being disregarded. The remaining data points may be used to estimate or calculate a measure of pulmonary capillary blood flow or cardiac output. Systems that include elements that are configured to effect such methods are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.