Method and apparatus for determining cardiac output
US6413226B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Oct 27, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0833
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for use in determining the cardiac output. The method include quantitatively measuring the patient's airflow, a first parameter indicative of the percent oxygen inhaled and exhaled by the patient, and a second parameter indicative of the patient's fractional arterial oxygen concentration. The method also includes inducing a change in the patient's arterial oxygen concentration while taking these measurements to monitor the effects of the change in the patient's arterial oxygen concentration. The cardiac output is determined from the data collected regarding the effects of the change in the patient's arterial oxygen concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.