Cardiac output and right ventricular ejection fraction system
US5383468A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1991 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Oct 29, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/028
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac output and right ventricular ejection fraction computer comprises a catheter, having an indicator injection port which is located at the right ventricular, inserted into an intravascular of a patient and retained therein; thermal detector device, mounted on a distal portion of the catheter, for detecting the temperature of blood ejected from the right ventricle; signal processor device for calculating the right ventricular ejection fraction from a thermodilution curve obtained by detecting variation of the blood temperature measured by the thermal detector device when a indicator is injected into the right ventricular through the catheter; data input device for inputting data to the signal processor device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.