Coiled, closed-loop RF current attenuator configured to be placed about an implantable lead conductor
US10183162B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 1, 2016 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Mar 5, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2007/013
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A coiled, closed-loop RF current attenuator is configured to be placed about an implantable lead conductor. A coiled conductor extends in a coiled shape defining a longitudinal axis from a first coil end to a second coil end. The first coil end is electrically connected to the second coil end. An insulator is disposed about the coiled conductor. The closed loop attenuator can also include in series a short, a capacitor and/or a resistor. In some embodiments the closed loop attenuator can be resonant at an MRI RF-pulsed frequency. The closed loop attenuator can be integrated as a permanent part of an implantable lead conductor, or alternatively, be a stand-alone device that is placed about a premade implantable lead conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.