Implantable medical device and charging system employing electric fields
US9265957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2011 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Jun 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable medical device and external base station system are disclosed. The external base station can provide a passive electric field to power the implant, or to charge its battery. The base station may also power or charge using magnetic fields under certain circumstances. The Implantable medical device may comprise an implantable neurostimulator having a number of electrode leads extending from its body. One or more of the electrode leads can comprise the antenna for receiving the electric field from the base station, and resonance in that antenna can be rectified to provide the power for recharging the battery. Although the E-field provided by the base station does not provide as much power for recharging as does other traditional charging techniques, it can occur passively and over longer distances to allow the patent's implant to be recharged when in relative proximity to the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.