Global cardiac performance
US7653436B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2007 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Feb 5, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0294
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is related to implantable cardiac devices such as pacemakers and defibrillators that deliver cardiac resynchronization therapy (CRT), and to a method of optimizing acquisition of impedance signals between electrodes present on implanted lead systems. This system then automatically determines which electrodes or electrode combinations acquire impedance waveforms that have the best signal to noise ratio (highest fidelity) and characterize data most representative of dysynchronous electro-mechanical events. Using closed loop algorithms which provide electrograms and a variety of impedance data reflective of the patient's clinical status, the system autonomously modifies interval timing within the CRT device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.