System for excitation leadless miniature marker
US6838990B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Sep 30, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1051
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for generating an excitation field for excitation of a leadless marker assembly. One aspect of the system comprises a source generator assembly having a power supply, an energy storage device, a switching network and a source coil interconnected and configured to deliver a magnetic excitation signal waveform. The power supply is configured to deliver power to energize the energy storage device. The switching network is configured to: direct electrical current through the source coil; alternately switch between a first on position and a second on position; alternately transfer stored energy from the energy storage device to the source coil and to transfer stored energy from the source coil back to the energy storage device; and the source coil being coupled to the switching network to generate an excitation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.