Implantable atrial defibrillator having cardioverting output voltage limiting for simulating larger storage capacitors
US5620467A · kind A · utility
29Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Oct 10, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/395
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable atrial defibrillator includes a storage capacitor for storing electrical energy. A switch discharges at least a portion of the stored energy into a patient's heart as a discharge voltage and a charger charges the storage capacitor with the stored energy to a peak voltage. A voltage limiter precludes the discharge voltage from exceeding a voltage limit during capacitor discharge to permit a reduced applied cardioverting voltage with a lengthened discharge time. The voltage limit is a substantially constant fraction of the peak voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.