Electromagnetic position single axis system
US6484118B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Dec 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2005/027
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for determining the position of a medical device having a sensor comprises a plurality of field radiators wherein each field radiator has a plurality of radiator elements. Each radiator element generates a magnetic field such that each magnetic field is distinct from one another due to the use of a different frequency through simultaneous energizing of the radiator elements. A signal processor is operatively connected to the field radiators and the sensor of the medical device for receiving a sensing signal from the sensor indicative of the magnetic field sensed at the sensor. Alternative field radiator arrangements are also provided in conjunction with a novel algorithm utilizing a global convergent technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.