Systems and methods for use by an implantable medical device for detecting heart failure based on the independent information content of immittance vectors
US8280511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2008 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Aug 2, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3627
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Techniques are provided for detecting heart failure or other medical conditions within a patient using an implantable medical device, such as pacemaker or implantable cardioverter/defibrillator, or external system. In one example, physiological signals, such as immittance-based signals, are sensed within the patient along a plurality of different vectors, and the amount of independent informational content among the physiological signals of the different vectors is determined. Heart failure is then detected by the implantable device based on a significant increase in the amount of independent informational content among the physiological signals. In response, therapy may be controlled, diagnostic information stored, and/or warning signals generated. In other examples, at least some of these functions are performed by an external system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.