Low-frequency electromagnetic tracking
US11022421B2 · kind B2 · utility
1Cited by
57References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2017 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Dec 29, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0166
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical system tracks the position of a medical instrument within a body of a patient. The medical instrument includes an electromagnet structure having an inductor coil wound around a core. A control circuit applies a low frequency excitation signal across the inductor coil. The inductor coil and the core generate a magnetic field. A plurality of sensors sense parameters of the generated magnetic field and produce sensor signals. The control circuit calculates the position of the medical instrument based on the produced sensor signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.