System and method for monitoring or reporting battery status of implantable medical device
US7194308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2003 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Jan 14, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3708
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method monitors or reports the battery status of an implantable medical device to a user. The battery terminal voltage and charge delivered are measured. Before the battery terminal voltage falls below an Elective Replacement Indicator (ERI) threshold voltage, a charge-delivered indication of battery status is provided to a user. Thereafter, a battery terminal voltage indication of battery status is provided to a user. The Elective Replacement Indicator (ERI) and End of Life (EOL) threshold voltages are each functions of delivered battery current. A fault current detection is also provided to a user. A device temperature sensor discounts the battery voltage reading when the device is too cold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.