Subcutaneous implantable cardiac device system with low defibrillation thresholds and improved sensing
US7925343B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2006 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jun 17, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37288
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A subcutaneous implantable cardiac device system applies defibrillation currents in pathways aligned with the heart's own electrical system to decrease defibrillation thresholds. In one implementation, one or more subcutaneous sensors detect ventricular fibrillation. Positioning of subcutaneous sensors and filtering result in improved sensing with reduced noise. A subcutaneous patch component of the system that is in communication with a subcutaneous pacemaker or cardioverter-defibrillator may perform the sensing and apply the defibrillation. The subcutaneous patch may include one or more electrodes that perform both sensing and defibrillation. Variations of the subcutaneous patch may include battery and capacitor for generating onboard defibrillation current and may also include a microprocessor for advanced programmable operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.