Ischemia detection based on cardiac conduction time
US7415307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2002 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Jun 11, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3629
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and process for detection of myocardial ischemia involve detection and analysis of changes in electrical conduction velocity within the heart to monitor changes in the condition of the cardiac muscle and indicate possible ischemia. Conduction velocity slows considerably when oxygen supply to the heart is reduced. Analysis of electrical conduction velocity can be used to verify the occurrence of myocardial ischemia in a more reliable manner. Changes in conduction velocity may be monitored based on conduction time between electrodes positioned in the left and right ventricles of the heart. The electrodes may be endocardial or epicardial electrodes. In general, the techniques may involve launching a stimulation waveform at one electrode and sensing a local cardiac depolarization at another electrode to assess conduction time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.