Systems and methods for providing arrhythmia therapy in MRI environments
US8639331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2009 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Jun 16, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3688
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for arrhythmia therapy in MRI environments are disclosed. Various systems disclosed utilize ATP therapy rather than ventricular shocks when patients are subjected to electromagnetic fields in an MRI scanner bore and shock therapy is not available. As the patient is moved out from within the scanner bore and away from the MRI scanner, the magnetic fields diminish in strength eventually allowing a high voltage capacitor within the IMD to charge if necessary. The system may detect when the electromagnetic fields no longer interfere with the shock therapy and will transition the IMD back to a normal operational mode where shock therapy can be delivered. Then, if the arrhythmia still exists, the system will carry out all of the system's prescribed operations, including the delivery of electric shocks to treat the arrhythmia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.