System and method for determining remaining battery life for an implantable medical device
US6671552B2 · kind B2 · utility
80Cited by
26References
31Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 2, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Apr 26, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3708
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for determining a remaining life estimate of the remaining battery life of a battery of an implantable medical device (IMD). The IMD battery preferably exhibits a highly reproducible monotonically decreasing discharge curve. The estimated remaining life estimates are derived by periodically measuring battery voltage, and estimating the estimated past current drain of the IMD comprising an average of the sum of the quiescent current drain and therapy delivery current drain, and determining the estimated remaining longevity from the measured voltage and the estimated past current drain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.