Abnormal battery depletion detection in an implantable device
US8214164B2 · kind B2 · utility
23Cited by
37References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2008 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Jun 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/382
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Abnormal battery depletion can be detected in an implantable medical device. Battery capacity consumed can be measured using a coulometer and using a capacity-by-voltage device, and the measurements can be blended to determine battery status. A drop in battery voltage below a specified threshold can be detected to identify a high-current depletion fault, and an alarm can be provided to indicate the fault has been detected. The specified threshold can be determined as a function of battery capacity consumed. Other aspects and embodiments are provided herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.