Method and device for detecting abnormal battery consumption due to extra-battery mechanisms
US11874334B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2022 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Apr 4, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/378
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems, methods, and devices are provided for determining an early battery depletion (EBD) condition of an implantable medical device that includes a memory storing program instructions and a processor executing the program instructions. Circuitry is electrically coupled to the processor, and the circuitry and processor perform one or more tasks related to at least one of collecting signals indicative of physiologic activity, analyzing collected signals, delivering therapy, or communicating with an external device. A battery supplies energy to the circuitry and processor. A monitoring circuit coupled to the battery measures actual energy usage from the battery representing at least one of a current draw from the battery during corresponding tasks or a voltage measurement across the battery. Circuitry and processor calculate projected energy usage from the battery in connection with the corresponding tasks, and determine when an EBD condition exists based on projected energy usage and actual energy usage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.