Apparatus and method for measuring cardiac output
US4542748A · kind A · utility
20Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1983 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Mar 7, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/028
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Updated cardiac output measurements are obtained using a reference value of cardiac output and the natural change in phase of variations in blood temperature. The reference value of cardiac output can be obtained using a thermodilution technique. The variations in blood temperature are sensed at appropriate locations, such as in the right atrium and the pulmonary artery. The temperature information is processed to provide a signal which is related to the velocity of the blood, and the signal and the reference value of cardiac output are used to provide the updated cardiac output measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.