Implantable tissue perfusion sensing system and method
US8038626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Jul 31, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7214
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device system for sensing cardiac events that includes a plurality of electrodes sensing cardiac signals utilized to identify a cardiac event, a plurality of light sources capable of emitting light at a plurality of wavelengths, and a detector to detect the emitted light. A processor determines a plurality of light measurements in response to the emitted light detected by the detector, determines changes in perfusion in response to first changes in the plurality of light measurements in a direction indicative of a decrease in blood oxygenation and second changes in a direction indicative of a decrease in blood volume, and adjusts delivery of therapy by the device in response to the determined loss of perfusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.