Monitor of heart failure using bioimpedance
US8731653B2 · kind B2 · utility
2Cited by
14References
20Claims
0Family size
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Key dates
| Filing date | Oct 9, 2009 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Sep 28, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36521
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a method of monitoring pulmonary edema in a human being, an electrical current is injected between a first electrode located in or around a heart and a housing of a medical device implanted in a chest region. A voltage potential is measured between a second electrode in a superior vena cava and a third electrode in the superior vena cava, where the voltage potential is created by the electrical current. Pulmonary edema is assessed based on an impedance value calculated from the electrical current and the voltage potential and a stored edema threshold impedance value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.