Monitoring mechanical heart properties
US8862221B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Mar 2, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/287
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a method and system for monitoring mechanical properties of a heart in a subject, multiple cardiogenic impedance values reflective of the impedance of the heart in connection with a transition from inhalation to exhalation in the subject are determined. Correspondingly, multiple cardiogenic impedance values reflective of the impedance of the heart in connection with a transition from exhalation to inhalation are determined. The impedance values are collectively processed to form a trend parameter. The value determination and processing is performed over several respiratory cycles spaced apart in time to form a plurality of trend parameters over time. The mechanical properties of the heart are monitored by processing these different trend parameters. The data collection and optionally at least a part of the data processing is performed by an implantable medical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.