Apparatus and method for determining an approximation of the stroke volume and the cardiac output of the heart
US6511438B2 · kind B2 · utility
82Cited by
24References
140Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2001 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | May 29, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0535
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to an apparatus and a method for determining an approximate value for the stroke volume and the cardiac output of a person's heart. The apparatus and method employ a measured electrical impedance, or admittance, of a part of a person's body, namely, the thorax. This part of a person's body is chosen because its electrical impedance, or admittance, changes with time as a consequence of the periodic beating of the heart. Accordingly, the measured electrical admittance or impedance can provide information about the performance of the heart as a pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.